HP 1707B Service manual

m

r-

0

b

F

P

OPERATING AND

SERVICE

MANUAL

OSCILLOSCOPE

1707B

HEWLETT

~-

-

_-

-

PACKARD

.

OPERATING AND SERVICE MANUAL

MODEL

1707B

OSCILLOSCOPE

4

SERIALS

Refer to Section
standard options:
and

631.

PREFIXED:

VI1

for instruments with the following

002,007,011,012,015,602,607,611

1410A

H

1900

Manual
Microfiche Number 01 707-908 16

Part

Number 01707-90916

EWLETT-PAC KA R D

GARDEN

OF

THE GODS ROAD, COLORADO SPRINGS, COLORADO, U.S.A.

COMPANY/COLO RA DO SPRINGS DIV

IS1

ON

PRINTED: APRIL

1974

SAFETY

SUMMARY

The following general safety precautions must be observed during all phases of operation, service, and repair

of this instrument. Failure to comply with these precautions

or

with specific warnings elsewhere

in

this
manual violates safety standards of design, manufacture, and intended use of the instrument. Hewlett­Packard Company assumes no liability for the customer's failure to comply with these requirements.

GROUND THE INSTRUMENT.

To minimize shock hazard, the instrument chassis and cabinet must be connected to an electrical

ground. The instrument is equipped with a three-conductor ac power cable. The power cable

must either be plugged into an approved three-contact electrical outlet

or

used with a three-

contact to two-contact adapter with the grounding wire (green) firmly connected to an elmtrical

ground (safety ground) at the power outlet. The power jack and mating plug of the-power cable

meet International Electrotechnical Commission

DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE.

Do

not operate the instrument

in

the presence of flammable gases

(IEC)

safety standards.

or

fumes. Operation of any

electrical instrument in such an environment constitutes a definite safety hazard.

KEEP

AWAY

FROM LIVE CIRCUITS.

Operating personnel must not remove instrument covers. Component replacement and internal

adjustments must be made by qualified maintenance personnel.

Do

not replace components with

power ca ble connected. Under certain conditions, dangerous voltages may exist even with the
power cable removed.

To

avoid injuries, always disconnect power and discharge circuits before touching them.

DO NOT SERVICE

Do

not attempt internal service

OR

ADJUST ALONE.

or

adjustment unless another person, capable of rendering first

aid and resuscitation, is present.

USE CAUTION WHEN EXPOSING

Breakage of

the

cathode-ray tube (CRT) causes a high-velocity scattering of glass fragments
(implosion). To prevent
Handling of the

CRT

shall be done only by qualified maintenance personnel using approved

OR

HANDLING THE CRT.

CRT

implosion, avoid rough handling or jarring of the instrument.

safety mask and gloves.

DO NOT SUBSTITUTE PARTS

Because of

the

danger of introducing additional hazards,

OR

MODIFY INSTRUMENT.

do

not install substitute parts

or

perform any

un-

authorized modification to the instrument. Return the instrument to a Hewlett-Packard Sales and Service

Office for service and repair to ensure that safety features are maintained.

DANGEROUS PROCEDURE WARNINGS.

Warnings, such as the example below, precede potentially dangerous procedures throughout this

manual. Instructions contained in the warnings must be followed.

I

Dangerous voltages, capable of causing death, are present in this instrumezt.

Use

extreme

caution when handling, testing, and adjusting.

Model

1707H

TABLE

Section Page

I

GENERAL INFORMATION

1.1

1.4

1.5

1.7

1-1

1.17

1.20 .

1.22 .

1.24 .

1.26 .

1.30 .

I1 INSTALLATION .........................

2.1

2.3 .

2.6 .

2.7
2-1

2.13
2- 15 .

2.17 .

2.19 .

I11 OPERATION

3.1

3.3

3.5

3.7

3.9

3.11

3.13

3.15

3.17

3.24

3.26

3.28

3.30

3.32

3.34

3.36

3.38

3.40

J

I

I

3.42 .

3.44

3.46 .

Introduction

.
.

Description

.
.

1

.

.

.

.

1

.

.

.

.

.

.
.

.
.
.
.
.
. B
.
.
.

.
.
.

.
.

Introduction
Vertical Circuits
Horizontal Circuits

Cathode-ray Tube
Warranty
Accessories Furnished
Accessories Available
Instrument and Manual

Identification

Inquiries

Introduction
Initial Inspection
Preparation for Use

Power Requirements
Three-conductor AC Power

Cable
DC
Battery Installation

Claims
Repacking for Shipment

Introduction
Controls and Connectors

Beam Finder
Scale Illumination
Trace Align
Calibrator
Focus and Astigmatism
Coupling
Display

Trig

Polarity

Sweep Display

Ext

Main Sweep

Mixed Sweep
Delayed Sweep
Time/Div

Vernier
Trigger Level

Trigger Holdoff
Slope

......................

.......................

......................... 1-5

..........................

...................... 2-1

.......................

Plug

......................

............................

.............................

......................

...................... 3-1

........................

.........................

............................

...................... 3-4

Horiz Input

....................... 3-4

.........................

............................ 3.4

..............

..................

..............

............

.................

............ 1-5

.............

................... 1-5

.................

............... 2-1

..........

...........

.......... 2-2

..........

....................

.............. 3-1

.....................

.........

..................

................. 3-4

.................... 3-4

...................

.................. 3-4

...................

.................

1-1

1-1
1 . 1

1-1

1-1
1-1

1-5

1-5

1-5

2-1

2-1
2-1

2-1
2-2
2-2
2-2

3-1
3-1
3-1
3-1

3-1
3-1

3-1
3-4
3-4

3-4

3-4

3-4

3-4

3-4

OF

CONTENTS

Section Page

IV PRINC11’1,ES OF OPERATION

3.48 .

3.51 .

3.54 .

3.56 .

3.58

.

3.59

.

3.61

.

3.63

.

3.65 .

3.67

.

3.69 .

3.71 .

3.73

.

3.75 .

3.77 .

3.80 .

4.1

.

4.3

.

4.6 .

4.8

.

4-

10

.

4-12

4.14

.

4-

16

.

4.21 .

4.24 .

4.27

.

4..31

.

‘1

-;

35

.

4.41

.

4.44

.

4.46

.

4.48

.

4.53 .

4.79

.

4.81

.

4.86

.

4.104 .
4-1 19 .

4.124
4- 130

4.148 .

4.156 .

4.158 .

4.162

4.165 .

4.174 .

Sweep Mode

Trigger Selection
Magnetic Interference
Battery Recharge Operation
Preoperational Adjustments

Initial Turn.on

Focus and Astigmatism Adjust
Operating Procedures
Operators Performance Check
Operating Information

Auto Versus
Auto Versus
AC Versus DC
Mixed Sweep
Delayed Sweep
Line Sync

Introduction ......................

Block Diagram Discussion

Input Attenuator

Vertical I’rcamplifier

1)cllay

Vertical Output Amplifier
Trigger Circuits

M

ai n In t egr a t o r

Holdoff and Comparator

I

)el ay ed Integra tor
‘l’iming Sequence
Horizontal Mode Assembly

I.

ow

Voltage Power
High Voltage Power Supply
Gate Amplifitr

Detailed Circuit Theory

Input Attenuators
Vertical Preamplifier
Delay Line
Vertical Output Amplifier
Trigger Circuits
Main Integrator
Holdoff and Comparator

.

Delayed Integrator

.

Horizontal Mode

Gate Assembly
Calibrator
Horizontal Preamplifier and

Output Assemblies

Indicator Drivers

.

Low Voltage Power

Supply

High Voltage Power

Supply

....................

................

............. 3-5

..................

.............

............

Norm

..............

Trig

...............

.................. 3-7

....................

..................

....................... 3-7

...........

..............

I.ine

....................

...............

...............

............

..............

Supply

................

..........

.............. 4-4

...........

.....................

................

................

............ 4-10

..............

.................

.....................

...........

..............

.......................

.......................

....... 3-5

.......

.. 3-6

..... 3-6

.......

..........

.....

......

....

....

...

...... 4-6

......

3-5
3-5

3-5

3-5
3-6

3-7
3-7
3-7

3-7
3-7

4-1

4-1

4-1

4-1

4-1

4-1
4-1

4-1

4

.

4-2
4-2

4-;3

4-:3

4-;j

4-3
4-4

4-4

4-4

4-6

4-6

4-8

4-10
4-11

4-13
4-14

4-14

4-14
4-14
4-16

1

111

Table of Contents

Model 1707B

TABLE

Section Page

V

PERFORMANCE: CHECK AND

A1)JUS’I’ME:NTS

5.1

5.3

5.5

5.8

5.10

5-

5.13

5.18

5.23

5.28

5.33

5.38

5.43

5.48

5.53

5.58

5.63

5.68

5.73

5-78

5.83

5.88

5.93

5.98

5.103

5.108
5-113

5.118

5.123

5.128

5-133

5.138

5.142

5.143

5.148

5.153

5.157

5.162

5.167

5.172

5.177

5.181
5-

Introduction

.

Test Equipment

.

Performance Check

.

Front-panel Adjustments

.

Front-panel Settings

.

Performance Tests

12

.

Deflection Factor
Rise time
Handwidth

A+B Mode
Alt Mode

Chop Mode
Single Sweep
Auto

Z

Axis

Beam Finder
Coupling Switch
Input Resistance

Common Rejection Ratio

(CMRR)

Main

Delayed Sweep Time
Delay Time Accuracy
Delay Time Linearity
Delay Jitter
Main Triggering
Delayed Triggering

Main Trigger Level Range and

Polarity

Delayed Trigger Level Range

and Polarity

Ext Horizontal Bandwidth

Ext Horizontal Deflection

Factor

Calibrator

Adjustments

Adjust Procedures

Low

Adjustment

High

Adjustment

Intensity Limit Adjustment

Y-Axis

Gate Amplifier Response

Adjustment

Trigger Amplifier Balance and

DC

Trigger Sensitivity
Position Centering Adjustment . 5-22

Sweep Length Adjustment

Main Sweep Timing

Adjustment

185

.

.
.

.
.

.

.

.

.

.

.
.

.

.

.
.
.

.

.
.
.

.

.

.

.

.
.

.

.

.
.

.

.

.

.

.

.

.......................

......................

...................

...............

..........

..............

................

.............

.....................

....................

......................

.......................

.....................

...................

Trig

Recovery Time

Sensitivity

...............

....................

................

................

......................

Sweep Time

...............

............

..........

..........

....................

...............

............

......................

.................

......................

.....................

.....................

................

Voltage Power Supply

..................

Voltage Power Supply

..................

Alignment

..............

..................

Adjustment

.............

.............

..................

OF

........

....

....

.....

CONTENTS

5-1

5-1

5-1
5-1

5-

5-1

5-1

5-1
5-2

5-3

5-3

5-4
5-4

55

5-5

56

5-6

5-6

5-7

5-8

5-8

5-9

5-10

511

5-12

5-13

5-14

5-15

5-16

5-16

5-17
5-17

5-19
5-19

5-19

5-19
5-20

520
5-20

5-21

5-21
5-22

523

(Cont’d)

Section Page

5.190

5.195

5.200

5.205

5.210

5-2

1

VI REPI.ACEAH1. E PARTS

VI1

VI11 SCHEMATICS ANI) TROUH1.E:

15

5.220

5.225

5.230

6.1

.

6.3

.

MAZNUAI. CHANGES AN!)

7.1

.

7.3

.

7.5

.

7.9

.

SHOOTING

8.1

.

8.3

.

8.8

.

8-

12

8-

1.5

8-

17

8.22

8.27

8.29

8-:3

1

8..n

8..35 .

8437

8.42

8.44

.

8.46

.

8.48

.

Delayed Sweep Time

.
.

.
.
.
.

.
.
.

.
.
.
.
.
.

.

.

.

.

Adjustment
X10 Gain Adjustment
Mag Centering Adjustment
Calibrator Adjustment

Ext Horiz Input Compensation . 5-25

Ext

Horiz

Low-frequency Pulse Response

Adj

............................

Input Capacitance and Attenuator

Compensation Adjustment

High-frequency Pulse

Response Adj

Introduction

Ordering Information

Introduction
Manual Changes
Special Options
Standard Options

............................

Introduction
Schematics
Reference Designations

Component

Preventive Maintenance

Mechanical Inspection
Switch Maintenance

Repair and Replacement

CRT Removal and Replace-

ment

Vertical Amplifier Module

Removal and Replacement

Delay line Removal and

Replacement

Attenuator Removal

Replacement

Removal and Replacement

Assemblies in Horizontal
Amplifier Module

Power

Removal and Replacement

Power

assembly and Reassembly

Semiconductor Removal and

Replacement

At

t

e

n

u

..................

Gain Adjust

...............

.................

......................

.............

OP‘I’IONS

......................

..................

...................

.................

......................

.......................

...........

I.

ocations

........................

S

u

p p

1

Supply

a

t o r Ser vi c i n

.............

................ 8-3

................

...........

y

Mod

u

1

e

Module

................

g

..........

....

.........

.........

. .

....

.

..........

........

..........

..........

. . 8-3

and

of

IXs-

. .

..........

5-23
524
524
5-25

5-26

5.26
5-26
5-27

6-1

6-1
6-1

7-1

7-1
7-1
7-1

7-1

8-1
8-1

8-1

8-1

8-1

8-1

8-1

8-2

8-2
8-2

8-3

8-5

8-5

8-5

8-6

8-6

iv

Model 1707B

Table of Contents

List of Illustrations

TABLE

)

Section Page Section Page

8.50 . Circuit Hoards

8.52

.

8.54

.

8.56

.

8.60

.

Figure Title Page Figure Title Page

.

1.1 Model 1707R Oscilloscope 1-0 5.12

1.2

.

Instrument Serial Number

1.3

2.1

2.2 Battery Pack Installation 2-2 5-16 . EXT Horizontal Bandwidth

3.1

3.2

1

3.3

3.4

3.5

3.6

3.7

4.1

4.2

4.3

4.4

5.1
5-2

5.3

5-4

55

5-6
5-7

58

59
5-10

5-11

Service Kit for HP 1700-series

.

Oscilloscopes

.

Rear Panel Power Module

.

.

Controls and Connectors 3-2
Sweep Combinations

.

.

DC BAL Adjust

.

CALAdjust

Algebraic Addition and Differential

.

Operation

Delayed Sweep

.

Mixed Sweep

.

Timing Sequence

.

Step-by-step operation of the

.

.
.

.
.

.

.

.

.

.

.
.

Gate Schmitt Trigger

Step-by-step operation of the Set-

reset Multivibrator 4-9

Blanking Sequence

Deflection Factor Test Setup

Rise time Test Setup
Bandwidth Test Setup

A+B

Input Resistance Test Setup

CMRR Test Setup
Main Sweep Time Test Setup

Delayed Sweep Time Test Setup
Delay Time Accuracy Test Setup

.

Delay Time Linearity Test Setup
Delay Jitter Test Setup

.

Hoard Connect ions
Servicing Etched Circuit

Hoards

Integrated Circuit Replace- 8-7 1

ment 8.6 8.73

Service Kit

.............................

............................

...........................

Mode Test Setup

.....................

.............

.......................

.........................

.....................

...............

............

.......................

...............

...............

................

....................

.........................

.........................

........................

...............

..................

...................

............

....................

.................

..................

.............

.......................

............

.................

OF

LIST

OF

........

.......

.......

CONTENTS (Cont'd)

8-6
8-6

8.6

8.7

8.62

.

8.64

.

8.66 . Troubleshooting

8.69

.
.
.

8.75

.

Soldering

Aids

.........................

Heat Sink Removal
DC Voltages

Waveforms
Test Points

Circuit Checking

ILLUSTRATIONS

.

Main Triggering

5.13

.

1-5

1-6

2-1 Polarity Test Setup

3-5

3-8 Test Setup
3-9

3-10

3-11
3-12

4-2

4-7

4-12

5-2

5-3

33
5-4
5-7

5-8
5-8

5.10

5.10

5.11

5.12

5.14

5.15

517

518

5-19

6-1

6-2

8.1

8.2

8.3

8.4

8.5

8.6

8.7

8-8

8-9
8-10

8.11

8.12

8.13

8-14

8-15

Delayed Triggering Test Setup
Main Trigger Level Range and Polarity

.

Test Setup

.

Delayed Trigger Level Range and

Test Setup

EXT

.

Horizontal Deflection Factor

...........................

...........................

...........................

.

Calibrator Test Setup
Adjustment

.

Knob Locator

.

Mechanical

.

Vertical Module Mechanical Parts

.
.

.

.

.

.

.

.
.

Removal

Attenuator Removal
Semiconductor Terminal Identification

Component Identification. Interior Front

and rear Panel

Component and Assembly Locations . 8-23

Vertical Module A5 Component

Identification

Horizontal Module A6 Component

Identification

Main Block Diagram
Power Supply Block Diagram

Attenuator Component Identification . 8-28

.

Attenuator Schematic

.

Vertical Preamplifier Assembly A5A4

.

Component Identification

Vertical Preamplifier Assembly

.

A5A4

Vertical Preamplifier Assembly

.

A5A4

.

Vertical Preamplifier Assembly A5A4

Component Identification

..........................

...........................

Parts

..............................

......................

......................

..............................

................................

Tool.

Solder. and

............

...................

...................

....................

....................

...............

Test

Setup

............

.........

................

..................

Locator

.....................

...............

....................

.................

........

................

..........

............

8-7

8.8

8.8

8.8

8.8

8.8

8.9

5.13

5.14

5.15

5-16

5.17

5.17

5.18

529

6-2
6-3

8-4

8-4

. .

8-7

8-23

8-24

8-24

8-25

8-27
8-29
830
8-31

8.33

8.34

V

List of Illustrations
List

of

Tables

LIST

OF

ILLUSTRATIONS

(Cont‘d)

Model

1707B

Figure Title Page

8.16

8.17

8.18

8.19

8.20
8-21

8.22

8.23

8.24

8.25

8.26

8.27
8-28

8.29

8.30

8.31

Vertical Preamplifier A5A4 and Vertical

.

Output Amplifier A5A5

Vertical Preamplifier A5A4

.

Trigger Assembly A6A2 Com-

.

ponent Identification

Trigger Assembly A6A2

.

Trigger Assembly A6A2

.
.

Horizontal Mother Board A6A1

Component Identification

.

Main Integrator A6A3

Component Identification

Main Integrator A6A3

.
.

Main Sweep Time Assembly A6A5

Component Identification

Main Sweep Time Assembly A6A5

.

Delayed Integrator A6A4 Component

.

Identification

Delayed Integrator A6A4

.

Delayed Sweep Time Assembly A6A6

.

Component Identification

Delayed Sweep Time Assembly

.

A6A6

................................

Holdoff and Comparator A6A7

.

Component Identification

.

Holdoff and Comparator A6A7

........................

..............

............

.................

................

................

............

............

.................

............

...............

............

............

.....

.........

8.35

8.37

8.38

8.39

8.41

8-42

8.42

8.43

8.44

8.45

8.46

8.47

8.48

8-49

8.50

8-51

Figure Title Page

8.32

8.33

8-34

8.35

8-36

8.37

8.38

8.39

8.40

8.41

8.42

8.43

8.44

8.45

8.46

8.47

8.48

8.49

8.50

Horizontal Mode Assembly A6A8

.

Component Identification

EXT Horizontal Amplifier Assembly A8.

.

Component Identification

Horizontal Mode Assembly A6A8

.

Horizontal Preamplifier Assembly A6A9

.

Component Identification

Horizontal Output Amplifier Assembly

.

A6A10 Component Identification

Horizontal Preamplifier and Output

.

Assemblies A6A9 and A6A10

Gate Assembly A4 Component

.

Identification

Gate Assembly A4

.

High Voltage Oscillator A3A4

.

Component Identification

High Voltage Oscillator A3A4

.

.

Line Rectifier A2 Component

Identification

Low Voltage Mother Board A3A1

.

Component Identification

.

Power Input and Line Filters

.

Low Voltage Converter Assembly

A3A2 Component Identification

.

Low Voltage Converter Assembly

A3A2

..............................

.

Line Rectifier and Filter A3A3

Component Identification

Line Rectifier and Filter A3A3

.

.

Horizontal Mother Board A6A1
Horizontal Preamplifier A6A9

.

Voltage Distribution

........................

...................

......................

............

............

............

..........

..........

.........

..........

...............

......

.....

........

........

....

.......

......

8.52

8.52

8.53

8.54

8.54

8.55

8.56

a57

8-58

8-59
a60
8-60

8-61
a62
8-63
864

a65
8-67

868

Table

1.1

.

1.2

.

5.1

.

5.2

.

5.3

.

5.4

.

5.5

.

5.6

.

5.7

.

5.8

.

5.9

.

6.1

.

vi

LIST

OF

TABLES

Title Page Table

Specifications
Model 1707H Accessories Available

Recommended Test Equipment

Ileflection Factor Accuracy

Main Sweep Performance Check

Delayed Sweep Performance Check

Performance Check Record

Power Supply Voltage Limits

Main Sweep Time Adjustments 5-23 8.4
Ilelayed Sweep Time Adjustments

Square-wave Adjustment
Capacitance Adjustment

Abbreviations for Replaceable Parts

List

...................................

...........................

. .

1-5/14? 6.3

..........

..............

........

....

.........

..........

.........

......

.............

.............

1-2

5-0
5-2

5-9

5-11

5.18a
‘5-19

5-24
5-27

5-27

6-1

6.2

8.1

8.3

8.5

7.1

8.2

8.6

Title Page

Replaceable Parts

.

List of Manufacturers’ Code

.

Model 1707H Standard Options

.

Etched Circuit Soldering Equipment

.

Model 1707H Assembly Locations

.

Schematic Notes

.

.

Troubleshooting Low Voltage

Power Supply

.

Troubleshooting High Voltage Power

Supply.

Troubleshooting Vertical

.

Deflection

CRT.

.......................

.......................

......................

Gate

.................

..........................

..........

..........

.....

.......

6-5

6-25

7-2

8-8

8-9

8-10

8-11

8-13

8-16

Model

1707B

LIST

OF

TABLES

List of Tables

(Cont’d)

Table

8-7.

8-8.

8-9.

8-

10.

8-1 1.

8-

12.

8-13.

8-14.

8-15.

8-16.

8-17.

Title Page Table Title Page

Troubles hooting Horizontal
Troubleshooting Time Base
Block Diagram Measurement

Conditions

Schematic 4 Measurement Con-

ditions and Waveforms..

Schematic 5 Measurement Con-

ditions and Waveforms..

Schematic 6 Measurement Con-

ditions and Waveforms..

Schematic 7 Measurement Con-

ditions and Waveforms.. 8-36

Schematic 8 Measurement Con-

ditions and Waveforms..

Schematic 9 Measurement Con-

ditions and Waveforms..

Schematic 10 Measurement Con- 8-25. Schematic 19 Measurement Con-

ditions and Waveforms..

Schematic

ditions..

..........................

11

Measurement Con- 8-26. Schematic 20 Measurement Con-

...........................

..........

..........

...........

...........

...........

...........

...........

...........

...........

8-

19

8-20

.8-24

8-31

8-32

83-34

8-38

8-40
843 ditions..

8-44 ditions and Waveforms..

8-18.

8-19. Schematic

8-20. Schematic

8-21. Schematic

8-22. Schematic 16 Measurement Con-

8-23. Schematic 17 Measurement Con-

8-24. Schematic

Schematic 12 Measurement Con-

ditions and Waveforms..

13

Measurement Con-

ditions..

ditions and Waveforms..

ditions and Waveforms.

ditions and Waveforms..

ditions and Waveforms.

ditions and Waveforms.

...........................

14

Measurement Con-

15

Measurement Con-

18

Measurement Con-

...........

...........

............

...........

............

............

...........................

...........

8-46

8-48

8-50

8-52

8-54

8-56

8-58

8-60

8-62

vii

i

Gcncral Information

Model 1707B

1-0

<.*

-"

Figure

1-1.

Model 1707B Oscilloscope

1707-PO01

Model 1707B

1

I

h

General Information

SECTION

I

GENERAL INFORMATION

1-1.

INTRODUCTION.

1-2.

This

manual provides operating and service

information for the Hewlett-Packard Model 1707B

i

Oscilloscope (figure

1-1).

This manual

is

divided into
eight sections, each covering a specific topic or
aspect of the instrument. All schematics are located

at

the rear of the manual.

the manual are instruction cards located

Also

located

at

the rear of

in

an

envelope attached to the inside back cover. These
cards explain the function of each instrument control.
The card

is

designed to fit the inside lid of the front

panel storage cover.

1-3. This section contains a description of Model
1707B. Instrument specifications are listed in table

1-1.

Table 7-2 lists the options available for Model

1707B.

1-4.

DESCRl PTION.

1-10. With the dual-trace feature, displays can be
obtained on either channel A or B, channels A
and B together, channels A + B, and channels A

-

B. Simultaneous display of two signals

is

possible

in either chop or alternate mode of operation. During

chop operation, channels are switched

at

an approxi­mate rate of 400-kHz during each sweep. In the
alternate mode of operation, the signal applied to

each channel
Triggering

is

displayed on alternate sweeps.

is

selectable from either A ONLY TRIG
or NORM TRIG position. In the NORM TRIG position,
the instrument triggers on the displayed signal.
In the A ONLY TRIG position, the instrument
triggers on the signal applied to channel A.

1-11.

HORIZONTAL CIRCUITS.

1-12. The horizontal circuits provide four types of
sweep displays. The displays are main sweep, mixed
sweep, delayed sweep and external horizontal input.

1-5.

INTRODUCTION.

1-13.

Operation of the delayed sweep while in the

main sweep mode provides trace intensification.

1-6. The Model 1707B

is

a

general-purpose, wide­band oscilloscope designed for bench or field service.
The Model 1707B operates from an ac line, dc line
or optional battery pack. The optional ,rechargable
nickel cadmium batteries provide up

to

4% hours of
operation and require a recharge time of approxi­mately
of transportation and

14

hours. A carrying handle provides ease

is

adjustable, allowing the

Model 1707B to be placed at an angle for viewing

the CRT.

i

1-7.

VERTICAL CIRCUITS.

The amount of intensification width depends on the
delayed front panel settings. In the delayed mode,

the intensified portion is displayed across the entire

CRT.

1-14.

Sweep speed settings from 0.1 usec/div to

2 sec/div (main sweep) and 0.1 usec/div to

0.2 sec/div (delayed sweep) are available in

a

1,

2,
sequence. Vernier controls allow continuous adjust­ment between steps and extend the slowest sweep

to 5 sec/div (main sweep) and

0.5

sec/div (delaved

>I

sweep). Using the magnifier function, the fastest

sweep speed can be expanded to 10 ns/div. The

5

mixed sweep function provides for simultaneous

1-8.

Vertical bandwidth

is

75

MHz with a rise time

less than 4.7 ns. Maximum vertical deflection factor

is

10 mV/div. The Model 1707B contains two identical

vertical amplifiers for single or dual channel

display of an input waveform and an expanded
portion of the waveform.

The delayed circuits are

calibrated, permitting accurate time difference meas-

urements to be made.

operation. Each channel offers a choice of ac or

1-15.

dc coupling. Common mode rejection

dB

at 10 mV/div, and

20

dB

for the rest of the

deflection ranges.

is

at

least .40

The main and delayed trigger circuits have
provisions for either internal or external operation.
Choice of trigger coupling

is

provided; ac/dc,

high

frequency reject, and low frequency reject. The

1-9. Nine calibrated switch settings provide

a

deflection factor range from 10 mV/div to 5 V/div in

a

1, 2, 5 sequence. The vertical verniers permit
continuous adjustment between calibrated steps and
extend the least sensitive deflection factor
div) to

at

least 12.5 V/div.

(5

V/

delayed trigger circuit does not have low frequency

reject trigger coupling.

1-16.

An external horizontal input allows the use of
an external signal to drive the horizontal deflection
plates of the CRT.

1-1

General Information Model 1707B

Table

1-1.

Specifications

IERTICAL AMPLIFIERS

MODES OF OPERATION:

channels A and B displayed alternately on
successive sweeps (alt); channels
displayed by switching between channels
at approximately 400-kHz rate with blanking
during switching (chop); channel A + channel

B

(algebraic addition).

EACH CHANNEL

Bandwidth:

(2)

(Direct or with Model 10006B

probe, 3-dB down from 50-kHz, 6-div ref­erence signal from terminated 5@ohm
source.)

DC-COUPLED: dc
AC-COUPLED: lower limit

tely

10

Hz.

Risetime:

probe, 10%

<4.7

ns

to

90%

step from terminated 50-ohm source.

DEFLECTION FACTOR

Ranges:

from 10 mV/div to 5 V/div

in 1,

2,

5

sequence;

vernier in calibrated position.

Vernier:

continuously variable between all

ranges, extends maximum deflection factor

to

at

least 12.5 V/div.

channel A; channel B;

A

to

75 MHz.

is

approxima-

direct or

with

Model 10006B

points with 6 div input

*3%

accuracy with

(9

and B

ranges)

Common Mode (A

-

B)

FREQUENCY: dc to 1 MHz.
REJECTION RATIO:

mV/div;

at

least

at

least

40

20

dB on all other ranges
with verniers set for optimum rejection.
Common-mode signal amplitude equivalent
to 30 div.

TR

I

G GE

RI

N

G

Normal Trigger:
A only trigger:

on displayed signal.

on signal from channel A.

MAIN TIME BASE

SWEEP

Ranges:

ranges) in 1,
with vernier

Vernier:

ranges, extends slowest sweep to

5

dicates when vernier

Magnifier:

and extends fastest sweep to 10 ns/div;
accuracy *5% (including
time base).

from 0.1 usec/div to 2 sec/div (23

2,

5

sequence; *3% accuracy

in

calibrated position.

continuously variable between all

sec/div; vernier uncalibrated light

is

not in

CAL

expands all sweep by factor of 10

3%

accuracy of

dB

on 10

at

least

position.

in-

Polarity:

NORM or INVT selectable on chan-

nel B.

Signal Delay:

ficiently

input signals are delayed

to

view leading edge of input

signals without advanced external trigger.

Input

RC

1

megohm

mately

Input Coupling:

24

pF.

*2%,

shunted by approxi-

AC, DC or GND selectable.

GND position disconnects signal input and

grounds amplifier input.

MAXIMUM INPUT

AC-coupled:

5

V/div

*600V (dc + pk ac);

to

20 mV/div; <150V

rms

ac <350V,

at

10 mV/div

(10 kHz or less).

DC-coupled:

<150V

A + B OPERATION

Amplifier:

<350V (rms) 5 V/div to

at

10 mV/div (10 kHz or less).

20

bandwidth and deflection factors
are unchanged; channel B may be inverted
for A - B operation.

suf-

mV/div;

SWEEP MODE

Normal:

sweep

is

triggered by internal or

external signal.

Automatic:

of input signal; triggering

bright baseline displayed in absence

is

same

as

above 40 Hz.

Single:

in

normal mode, sweep occurs once
with same triggering
button

arms sweep and lights indicator; in

as

normal; reset push-

auto mode, sweep occurs once each time

RESET pushbutton

TRIGGER1 NG

Internal:

dc to

is

pressed.

35

MHz on signals causing 0.5

div or more vertical deflection, increasing to

1

div

at

75 MHz in all display modes except

chop; dc

External:

to

400 kHz in chop mode.

dc

to

35

MHz on signals 50 mV p-p

or more, increasing to 100 mV p-p at 75 MHz.

External Input RC:

approximately 1 megohm

shunted by approximately 27 pF.

normal

1-2

Model

1707B

Table

1-1.

Specifications (Cont’d)

General Information

Level and Slope

INTERNAL

at

any point on vertical wave-

form displayed.

EXTERNAL continuously variable from

+12V

to

-1.2V on either slope of trigger

signal. Maximum input, *lOOV.

Coupling:

AC, DC, LF REJ, or HF REJ.

AC: attenuates signals below approximately

20 Hz.

LF REJ: attenuates signals below approxi-

mately 15 kHz.

HF REJ: attenuates signals above approxi-

mately 30 kHz.

TRIGGER HOLDOFF:

time between sweeps

continuously variable.

DELAYED TIME BASE

TRACE INTENSIFICATION:

of main time base to be expanded to full
screen in delayed time base mode. Rotating
time base switch from OFF position activates

intensified mode.

SWEEP

Ranges:

in 1,

0.1 usec/div to

2,

5

sequence;

brated position.

Vernier:

continuously variable between all

ranges, extends slowest sweep to 0.5 sec/div.

Magnifier:

expands all sweeps by a factor of
10 and extends fastest sweep to 10 ns/div;
accuracy *5% (including
time base).

SWEEP MODE

Trigger:

delayed sweep

delay period.

Auto:

delayed sweep

at end of delay period.

TRIGGERING

same

as

Internal:
External:

is

same

approximately

approximately

Level and Slope

INTERNAL

main time base.

as

main time base. Input RC

27

pF.

at

any point on vertical wave

form displayed.

EXTERNAL continuously variable from

+1.2V

to

-1.2V on either slope of trigger

signal.

intensifies

0.2

sec/div

*3%

with vernier

3%

is

armed

is

automatically triggered

1

megohm shunted by

that

(20

accuracy of

at

part

ranges)

in

cali-

end of

Coupling:

selectable, AC, DC, or HF REJ. AC
attenuates signals below approximately
Hz. HF REJ attenuates signals above approxi-

mately 30 kHz.

DELAY (Before start of delayed sweep.)

Time:

continuously variable from

2

sec.

Time Jitter:

maximum delay

Calibrated delay Accuracy:

MIXED SWEEP

<0.005%

in

each sweep.

(1

part

fl%;

0.1

in

20,000)

linearity,

usec to

Combines main and delayed sweeps into
one display. Sweep
base and

is

is

started by main time

completed by faster delayed

time base.

EXTERNAL HORIZONTAL INPUT

BANDWIDTH:
COUPLl NG:
DEFLECTION FACTOR:

X10;

0.1

VERNIER:

adjustment between ranges.

DYNAMIC RANGE:

left edge of CRT with 0 to -5V input.

MAXIMUM INPUT
INPUT RC:

30

pF.

dc

to

1

MHz.

dc.

X1; 1 V/div.

V/div.

1O:l

vernier provides continuous

beam may be positioned to

*lOOV.

1

megohm shunted by approximately

CATHODE-RAY TUBE AND CONTROLS

TYPE:

potential; aluminized
phosphors available, refer to options).

GRATICULE:

major division consists of 5 subdivisions on
major axes; 1 div

TRACE ALIGN:

cule line.

BEAM FINDER:

of settings of vertical, horizontal, or intensity
controls.

INTENSITY MODULATION:

blanks trace of any intensity. Input R equals
1000 ohms
Maximum Input: lOV (dc plus pk ac).

post-accelerator, 22.2-kV accelerating

P31

phosphor (other

6

X 10 div internal graticule; each

=

1

cm.

aligns

trace with horizontal

returns trace to CRT regardless

+4V, dc to 1 MHz,

*lo%.

GENERAL

CALI B RAT0

Type:
Voltage:

1

kHz

1V

R

*lo%

pp

square wave.

*l%.

20

of

*O.Wo.

grati-

1-3

General Information

Table

1-1.

Specifications (Cont'd)

Model 1707B

c

3

1/8

(79.4)

1

7

TOP

1-

14 3/8(365.1)

MAX PROJECTION (1701A)

15 5/16(388.9)

MAX PROJECTION (1701A)

15 9/16(395.31

20 7/8 (530.2)

15

3/4 (400.1)

-1

-

NOTE:

DIMENSIONS IN INCHES

c

c

7 21/64

(1 86.1)

7

53/64

(198.0)

a-

b--11 15/64(286.1)

I

13 3/8(339.7)

AND

(MILLIMETERS)

-4

POWER REQUIREMENTS

AC Line:

DC Line:

Battery (optional)

OPERATING TIME: up

RECHARGE TIME: 14

LOW BATTERY INDICATOR: power light

RECHARGING: batteries are recharging

115V or 230V *20%, 48 to 440 Hz.

11.5V

to

36V.

to

4.5 hours.

hr

minimum charging

time for a fully discharged battery.

flashes
charged and further operation may dam­age battery.

whenever POWER MODE switch
switch
POWER switch ON, trickle charge
applied.

to

indicate that batteries are dis-

off,

full charge

is

applied; with

is

set to

is

ID

WEIGHT

Without Panel Cover:

ping, 35 lb (15.9 kg).

With Panel Cover and Accessories:

(12.3 kg); shipping,

With Panel Cover, Accessories, and Battery

net, 35 lb (16 kg); shipping, 46 lb

Pack:

(20.9 kg).

DI MENS1 ONS:

ENVIRONMENT (Oscilloscope operates within

specifications over following ranges):

temperature 0°C to +55"C; humidity, to 95%
relative humidity

ft;

vibration, in three planes for 15 min each

with 0.010-inch excursion,

ACCESSORIES FURNISHED:

Model 10115A; front panel storage cover,
Model 10101B; two Model 10006B probes;
and one ac power cord with right angle plug.

refer to outline drawing.

net, 24 lb

38

lb (17.2 kg).

to

40°C; altitude, to 15,000

(11

kg); ship-

net, 27 lb

10

to 55 Hz.

blue contrast filter,

1-4

Model 1707B

1-17. CATHODE-RAY TUBE.

1-18. The Model 1707B uses a post-accelerator CRT
with a nonglare, rectangular faceplate. An internal
graticule
to eliminate parallax errors. The CRT
mately 22 -kV accelerating potential, and 6 vertical
by 10 horizontal divisions. Each division

centimeter.
1-19. A type

CRT. Other types of phosphors are available by
special order. Refer to Section VI1 for further infor­mation about optional and special-order modifi­cations.

is

located on the same plane

P31

phosphor

is

used in the standard

as

the display

has

approxi-

is

a

square

General Information

SERIAL PREFIX NUMBER SERIAL SUFFIX NUMBER

rZBirn*h

SERIAL

rJG

0000

A

00000

-\

COMPLETE SERIAL NUMBER

7000-A-22

Figure 1-2. Instrument Serial Number

I

NOTE

Due to phosphor burn sensitivity,

instruments with

not have the intensified function of

the beam finder.

a

P-11

phosphor do

1-20. WARRANTY.

1

CAUTION

The warranty may be void for instru­ments having a mutilated serial number
tag.

1-21. The instrument is certified and warranted

stated in the front of this manual. The CRT
covered by a separate warranty. The CRT warranty

and warranty claim form
this manual. Should the CRT fail
specified on the CRT warranty page, complete the
warranty claim form and return
CRT. The procedure for returning a defective CRT

is

described on CRT warranty page.

is

3

located

at

the rear of

within

it

with the defective

as

is

the time

1-28. Check the serial prefix number of the instru­ment. If the serial prefix number
that listed on the title page of this manual, refer
to Section VI1 for instructions
for proper instrument coverage.

1-29. Technical corrections to the manual are listed
under errata on an enclosed MANUAL CHANGES
sheet (if any).

is

different from

to

adapt this manual

1-30. INQUIRIES.

1-31.

Refer any questions regarding the manual,

the change sheet or the instrument to the nearest
HP Sales/Service Office. Always identify the
instrument by model number, complete name and
complete serial number in all correspondence. Refer
to the rear of the manual for a world-wide listing
of HP SaledService Offices.

Table 1-2. Model 1707B Accessories Available

1

Accessory No.

HP Model 10102A

I

Description

RFI Contrast Screen

I

1-22. ACCESSORIES FURNISHED.

I

1-23. Accessories furnished are listed in table

1-1.

HP Model 10103B
HP Model 10104A

Battery Pack
Viewing Hood (collapsible)

1-24. ACCESSORIES AVAILABLE.

Testmobile Adapter
Camera Adapter
Service Kit; contains three

extender boards and one
board puller.

1-25. Table 1-2 lists accessories available for the
Model 1707B. The service kit (figure
mended to maintain the Model 1707B.

1-3)

is

recom-

1-26. INSTRUMENT AND MANUAL IDEN-

FI

CAT1 ON.

TI

HP Model 10105A
HP Model 10106A

HP

01701-68701

1-27. This manual applies directly to Model 1707B
instruments with a serial prefix number
on the manual title page. The serial prefix number

is

the first group of digits in the instrument serial

number (figure 1-2). The instrument serial number

is

on a tag located on the rear panel.

as

listed

HP Model 10036A

Probe Adapter Kit: probe

tips contained in kit

are designed for use with

probes supplied with

1700-series oscilloscopes.

1-5

Gen era1

In

form ation

Model

1707B

Figure

1-3.

Service

Kit

for

HP

1700-series Oscilloscopes

1701A-R-1

I

1-6

Model 1707B

Installation

SECTION

I

NSTALLATI 0 N

2-1. INTRODUCTION.

2-2. This section contains instructions for perform­ing an initial inspection of the Model 1707B. Instal­lation procedures and precautions are presented
in step-by-step order. The procedures for making

a

claim for warranty repairs and for repacking the
instrument for shipment are also described
section.

2-3.

INITIAL INSPECTION.

2-4. The instrument was inspected mechanically and
electrically before shipment. Upon receipt, inspect

it

for damage that may have occurred in transit.
Check for broken knobs, bent or broken connectors,
and dents or scratches. If damage

is
to the claims paragraph in this section. Retain the
packing material for possible future use.

in

this

found, refer

II

c. Pull out lever under fuse. This removes fuse

(0.5 AT for 115V operation) from instrument.

d. Check to see

is

to right for 115V operation.

e.

For 230V operation, move slide switch to left

and install 0.25 AT fuse.

PLASTIC COVER A1

that

slide switch (figure 2-1)

F1

~

SLIDE

SWITCH

LEVER

1707A-R-16

)

1

Voltages are present inside instrument
when power switch

is

off and ac power

cord connected.

2-5. Check the electrical performance of the instru­ment immediately after receipt. Refer to Section V
for the performance check procedure. The perform­ance check will determine whether or not the instru­ment

is

operating within the specifications listed in

table

1-1.

Initial performance and accuracy of the
instrument are certified
this manual. If the instrument does not operate
specified, refer to the claims paragraph

as

stated

in

the front of

in

as

this

section.

2-6.

PREPARATION FOR USE.

2-7.

POWER REQUIREMENTS.

2-8.

The Model

1707B

can operate from either

an

ac or dc power source. For ac operation, the Model

1707B requires

48- to 440-Hz source that can deliver

115-

or 230-volt *20%, single phase,

50

volt-amperes.

2-9. A sliae switch inside the rear panel power
module (figure 2-1), on the rear panel, determines
115- or 230-volt operation. To check or change the
position of this slide switch, proceed

a.

Turn instrument off and remove power cord

as

follows:

from rear panel.

b. Move plastic cover to left (figure 2-1).

Figure 2-1. Rear Pan61 Power Module

2-10. For dc operation, the Model 1707B requires

from

11.5

to 36 volts, 25 watts maximum. The

2 amp dc line fuse

3

amp fuse for DC LINE operation. The instrument

(Fl)

must be replaced with

a

can also be operated from a battery pack. Depending
on the power mode of operation, the POWER MODE
switch (on rear panel) should be set to one of three
positions: DC LINE, INTERNAL BATTERY, or
AC LINE.

Do not change the POWER MODE
switch setting with the instrument on
or

with

ac or dc power applied

to

the

rear panel.

a.

Turn instrument power

b.

Disconnect ac or dc power cord from rear

off.

panel.

c. Set POWER

MODE

switch to desired

position.

d.

Connect ac or dc powei cord if desired.

e. Turn instrument power on.

2-11.

THREE-CONDUCTOR AC POWER CABLE.

2-12. For the protection of operating personnel,
Hewlett-Packard Company recommends that the

strument panel and cabinet be grounded. This

in-

in-

2-1

Installation

Model 1707B

strument

is

equipped with a three-conductor ac power
cable that, when connected to an appropriate re­ceptacle, grounds the instrument through the
offset pin. The power jack and mating plug of the

power cord meet International Electro-technical
Commission (IEC) safety standards. To preserve

this
protection feature when operating from a two­contact outlet, use a three-conductor to two-conductor

adapter, and connect the adapter wire to ground

at

the power outlet.

2-13.

2-14. A dc jack

DC

PLUG.

is

provided for operating from a dc
line. The cable used for the dc power cord should
be 2 wire (grounded) and must be able to carry

2.5A of current with a voltage loss of less than

1

volt.

2-15.

BATTERY INSl’ALLATION.

2-16. To install the battery pack in the Model 1707B,

proceed

as

follows:

Read operating note on battery pack
before inst all ation.

a.

Turn instrument off and remove power cord

from rear of instrument.

Move POWER MODE switch

b.

to

INTERNAL

BATTERY position.

Turn instrument on

c.

its

top and loosen fasten-

ers holding bottom cover.

d. Remove bottom cover.

Place battery pack in instrument

e.

as

shown

in

figure 2-2.

NOTE

Use only HP Model 10103B Battery Pack
with the Model 1707B.

SCREWS

f. Instal! two battery screws (figure 2-2).

g.

Connect

P1

to

Jl

(figure 2-2).

h. Replace bottom cover and tighten fasteners.

i.

Turn instrument right side up.

If power light

is

flashing, battery

is

discharged. Damage to the:battery may
occur if operated in this condition.
Refer to Section

I11

for battery recharging

operation.

Turn instrument on and observe power light.

j.

If power light

2-17.

2-18. The warranty statement applicable to
instrument
Refer to the front of
warranty statement also. If physical damage

or if operation

ment

is

is

on, resume normal operation.

CLAIMS

this

is

printed

is

received, notify the carrier and the nearest

not

in

the front

this

as

specified when the instru-

of

this

manual.

manual for the CRT

is

found

Hewlett-Packard Sales/Service Office immediately
(refer to the list in back of this manual for addresses).
The

HP

Sales/Service Office will arrange for repair

or replacement without waiting for settlement of
the claim with the carrier.

2-19.

2-20. If the Model 1707B

REPACKING

FOR

SHIPMENT,

is

to be shipped to

Hewlett-Packard Sales/Service Office for service or
repair, attach a tag showing owner

(with

address),
complete instrument serial number, and a description
of the service required.

2-21. Use the original shipping carton and packing
material. If the original packing material

is

not

available, the HP Sales/Service Office will provide

information and recommendations on materials to be

used. Materials used for shipping

an

instrument

normally include the following:

a

2-2

JI

PI

10103B-R-IA

Figure 2-2. Battery Pack Installation

a.

A double-walled carton with a test strength of

about

300

lb.

Heavy paper or sheets of cardboard to pro-

b.

tect all instrument surfaces; use a nonabrasive

material such
such

as

Kimpak around projecting parts.

as

polyurethane or cushioned paper

c. At least 4 inches of tightly-packed, industry-

approved, shock-absorbing material such

as

extra-

firm polyurethane foam.

d.

Heavy-duty shipping tape for securing outside

of carton.

Model 1707B

Operation

SECTION

OPERATION

3-1. I NTR 0 D U CTI ON.

3-2. This section provides general operating instruc­tions and applications information for the Model
1707B. Front-and rear-panel controls and connectors
are identified and briefly described in

figure
Operational adjustments are shown in figures
and 3-4 and general operating instructions are shown

in figures

3-3.

3-5

through 3-7.

CONTROLS AND CONNECTORS.

3-4. The following paragraphs explain some of the

controls and connectors in detail.

3-5. BEAM FINDER.

3-6. Pressing this pushbutton increases intensity
and reduces amplifier gain enough to return beam
to viewing area. This enables the operator to locate
beam and determine the action necessary to center

a

display (examples: reduce input signal amplitude,
change coupling, adjust deflection factor, trigger
level, dc balance, position controls, or intensity).
When centered properly, the beam remains on the
CRT when the pushbutton

is

NOTE

released.

3-1.

3-3

111

3-1 1. CALIBRATOR.

3-12. The 1-volt, l-kHz square wave output of the
calibrator can be used for vertical sensitivity calibr­ation and for divider probe compensation. The ampli­tude accuracy

*

10'70.

3-13. FOCUS AND ASTIGMATISM.

3-14. Both of these controls are used to obtain

a

sharp display. Normally, the ASTIGMATISM con-

trol need not be readjusted once

3-15. COUPLING.

3-16. This lever switch selects either capacitive
(AC) or direct (DC) coupling of the input signal to
the amplifier, or it grounds (GND) the amplifier
input stage while disconnecting the input signal.
The switch should be positioned to
long duration pulses

should be selected when viewing ac waveforms
having large dc levels. GND position
disconnect the signal source from the input of the
amplifier and at the same time grounds the input

of

the amplifier.

to establish a zero volt reference.

is

*l%

and the frequency accuracy

it

is

set.

DC

when viewing

or

dc levels of waveforms. AC

It

is

useful to use GND position

is

used

is

to

Due to phosphor burn sensitivity, instru­ments with

a P11

phosphor do not have
the intensified function of the beam
finder.

3-7. SCALE ILLUMINATION.

3-8.

This control adjusts the overall brightness of

the CRT graticule.

It

should be adjusted for good

contrast between the background and graticule. The

SCALE ILLUM control

is

especially useful when

using a hood to view the display or when photo­graphing waveforms. Rotate the control to OFF
when scale illumination

3-9. TRACE ALIGN.

is

not needed.

3-10. The TRACE ALIGN adjustment compensates
for external magnetic fields that may affect the
alignment of the horizontal trace with the graticule.

The alignment should be checked when the instru­ment is moved to a new location and adjustment
made whenever necessary.

3-17. DISPLAY.

3-18. This switch selects the type of display. Input
signals may be displayed either singly or simultane­ously

as

explained below.

Position A displays channel A input signals.

3-19.
3-20. Position B displays channel B input signals.

3-21.

Position A+B displays the algebraic sum of

the channel A and channel B input signals.
3-22. CHOP position presents a separate display

of

each input. Both inputs are displayed during the
same sweep by switching between each channel
rate of

400

kHz, This mode should be used to display

at

a

low frequency signals. A ONLY TRIG should be

used in the CHOP mode for stable triggering.

3-23. ALT position presents each channel on
alternate sweeps. This mode should be used to dis­play high frequency signals. If the channel A and B
signals are time related, A ONLY TRIG will provide

3-

1

Operation Model

4-8 9-1 1 12 13 14

15
16

1707B

1-3

46

45
44

43

42 41 40 39 38 37 36 35 34 33 32

\\

El

\\.

'ORIZ INPUT

/

17

18

19

20­25-

49

-24

-31

3-2

1.

SET FRONT PANEL POWER SWITCH TO OFF.

2.

SET

3. APPLY AC POWER

POWER

MODE

INTERNALBATTERY

@

c

53 52 51 50

Figure

31.

Controls and Connectors

FRONT

PANEL

POWER

MODE

SWITCH

TO

TO

INSTRUMENT.

c-3

[~y,lnrj

AC LINE

5/230

0'0

AC.

~

48-440

e'

a

I

Model

1707B

INTENSITY. Controls brightness of display.

1.

BEAM FINDER. Returns display to viewing

2.
area.

POWER-ON. Toggle switch for turning oscillo-

3.

scope on and off. Light illuminates when power

is

on. Light flashes when optional battery

discharged.
FOCUS. Adjusts writing beam for sharpest

4.

trace.
SCALE ILLUM. Controls brightness of scale

5.

illumination.

TRACE ALIGN. Adjust to align trace with hori-

6.
zontal graticule line.

CAL

1

7.

at 1 volt
ASTIGMATISM. Adjusts roundness of writing

8.

VOLT. provides

*I%.

1-kHz

square wave

spot.
DELAY TIME.

9.

start

of main sweep and

Selects time delay between

start

of delayed

sweep.

delayed VERNIER. Provides continuous con-

10.

trol of sweep time between calibrated positions
of delayed TIME/DIV switch.

delayed TRIGGER LEVEL. Selects amplitude

11.

point on trigger signal that

starts

sweep.

delayed TIME/DIV. Controls sweep time

12.
DELAYED mode. Controls intensified portion

of sweep in MAIN mode.

sweep display. Selects MAIN, DELAYED or

13.

MIXED SWEEP, or EXT HORIZ INPUT.

HORIZONTAL POSITION. Controls coarse

14.
and fine horizontal position of display.

is

delayed

in

VERNIER UNCAL. Lights when either main

16.
or delayed VERNIER

main VERNIER. Provides continuous control

17.

is

not in CAL position.

of sweep between calibrated positions of main

TIME/DIV switch.

18.

TRIGGER HOLDOFF. Provides continuous

control of time between sweeps. NORM holdoff

time

is

minimum.

main TRIGGER LEVEL. Selects amplitude

19.
point on trigger signal that

AUTO/TRIG.

20.

a.

AUTO. Delayed sweep

at

end of delay time.

b. TRIG. Delayed sweep arms

time and

is

ready to be triggered either

starts

starts

automatically

at

main sweep.

end of delay

internally or externally.

SINGLE. Selects single or normal sweep

21.
operation.

RESET. Resets sweep

22.

in

SINGLE sweep mode;

reset light indicates when sweep
AUTO/NORM.

23.

AUTO. Automatic sweep in absence of trig-

a.

ger signal or triggered sweep by
plying trigger signal above

b. NORM. Main sweep

is

40

triggered only by

applying trigger signal.

SWP

24.

MAG. In XI0 position, sweep

is

ten times.

HF REJ. Attenuates delayed sweep trigger

25.
signals above 30 kHz.

is

armed.

ap-

Hz rate.

magnified

main TIME/DIV. Controls sweep time in

15.

MAIN SWEEP mode.

26. AC/DC. Selects delayed sweep trigger signal
coupling.

INT/EXT. Selects internal or external sweep

27.
triggering for delayed sweeps.

INT/EXT. Selects internal or external sweep

28.

triggering for main sweep.

AC/DC. Selects main sweep trigger signal

29.
coupling.

30.

HF RE

J.

Attenuates main sweep trigger

signals above 30 kHz.
LF REJ. Attenuates main sweep trigger signals

31.

below

15

kHz.

NOTE

Depressing both HF REJ and LF REJ
selects a LINE SYNC mode of triggering.

main slope. Selects slope of main trigger

32.
signal that

EXT TRIG INPUTS. Main sweep external trig

33.

starts

sweep.

ger input.
EXT TRIG INPUTS. Delayed sweep external

34.
trigger input.

delayed slope. Selects slope of delayed sweep

35.
trigger signal.

VERNIER UNCAL. Lights when either ver-

36.
nier control

is

out of full clockwise CAL

detent position.

i

Operation

b. NORM TRIG. Instrument triggers on dis-

played signal except in ALT mode.
ALT mode

is

triggered on com­posite sync (LF REJ must be used to
maintain pro per triggering)

40.

INPUT. Input signal connects to BNC con-

.

nector.

41.

coupling. Selects capacitive (AC) or direct
(DC) coupling of input signal, or grounds
(GND) amplifier stage.

DC BAL. Adjust to minimize vertical shift of

42.
trace when vernier

43.

POSITION. Varies vertical position of display.

44.

CAL. Adjust to calibrate amplifier with setting

is

rotated.

of VOLTS/DIV switch.

45.

vernier. Provides continuous adjustments

of
volts/div between calibrated positions of
VOLTS/DIV switch.

46.

VOLTS/DIV. Selects vertical deflection

factor necessary for calibrated measurements

47.

ext horiz VERNIER. Permits

zont

a1

amplifier gain.

48.

EXT HORIZ INPUT. Input to external

1O:l

hori-

amplifier.

49.

Z AXIS INPUT. Z-axis input connector.

B

37.

38.

POLARITY. Controls channel B polarity.

DISPLAY. Selects display mode of channel A,

B,

A+B, CHOP or ALT.

trig.

39.
A ONLY TRIG. Internal trigger signal

a.

derived from channel A.

is

50.

AC LINE. Power input from ac line. Power
module contains ac line fuse (0.50 amp slow­blow for 125V, 0.25 amp slow-blow for 230V)
and line selector switch.

51.

POWER MODE. Selects dc line, ac line or in­tern

a1

battery operati on.

52.

DC LINE. Power input for dc line operation.

53.

FUSE. 2 amp slow-blow fuse for all modes of
operation except DC LINE

(3

amp used in DC

LINE).

Controls and Connectors (Cont’d)

Figure

3-1.

3-3

Operation

Model

1707B

the most stable triggering. If the two signals are
not time related, then NORM TRIG should be used.

3-24. TRIG.

3-25. This switch selects the signal to be used

as

the internal trigger signal. In A ONLY TRIG position,
the signal on channel A is used

as

the internal

trig-

ger signal. In NORM TRIG position, the instrument
triggers on the signal being displayed, except in ALT
mode. In ALT mode, the instrument triggers on the
composite sync signal and LF REJ trigger coupling

should be used to maintain stable triggering.

3-26. B POLARITY.

3-27. This switch inverts the channel B display

180 degrees. This switch can also be used to present

an A-B display. Set DISPLAY to A+B mode. Put

R

POLARITY switch in INVT position. Display

observed is A-B.

3-28. SWEEP DISPLAY.

3-29. This switch, mounted concentric to the main
and delayed TIME/DIV controls, determines the hori-

zontal sweep display modes. Modes are EXT HORIZ

INPUT, MAIN SWEEP, MIXED SWEEP and DE-

LAYED SWEEP. The function of each mode is

as

fol-

lows:

3-36. DELAYED SWEEP.

3-37. Main sweep is not displayed in this mode.

The sweep speed

is

controlled by delayed TIME/

DIV.

3-38. TIME/DIV.

3-39. Main and delayed TIMEIDIV switches
determine the amount of time to sweep horizontally
one graticule division. Both switches are concentric
and interlocked

so

the delayed sweep

is

always
faster than the main sweep, Mairi sweep speeds are
selectable by main TIME/DIV in 23 ranges from 0.1
usecldiv to 2 sec/div. Twenty ranges of delayed
sweep speeds from 0.1 usec/div to 0.2 sec/div are
provided by delayed TIME/DIV. By using the

SWP

MAG switch, a display can be expanded 10

times, increasing the fastest sweep to 10 ns/div.

3-40. VERNIER.

3-41.

Sweep speeds are calibrated to the TIME/DIV
switch when both the main and delayed VERNIER
controls are set fully clockwise to the CAL detent
position. As the VERNIER controls are turned
counterclockwise, the VERNIER UNCAL indicator
lights and sweep speeds decrease. The main VER-

NIER control extends the slowest sweep to

5

sec/div. The vernier controls are useful for making

at

least

continuous adjustments of sweep speed, however,
TIME/DIV readings are uncalibrated.

3-42. TRIGGER LEVEL.

3-30. EXT

3-31.

HORIZ

INPUT.

In this mode, the CRT horizontal plates are

driven by an external source.

3-32. MAIN SWEEP.

3-33. In this mode, the main sweep sets a time
base reference €or the vertical signal. Main sweep
controls are mounted on the right side of the front
panel, and sweep speed

is

selected by main TIME/
DIV. If delayed TIME/DIV is set to OFF, sweep
intensity is uniform. However, any other setting
of delayed ’I’IME/DIV causes the sweep to intensify
during the time that the delayed sweep is generated.

This

feature makes it possible to select a point of
interest on the main sweep time base before viewing
in the delayed sweep mode.

3-34. MIXED SWEEP.

3-35. In this mode, the first portion of signal
referenced to the main time base and the expanded
portion is referenced to the delayed time base.

Turning the

DELAY

TIME control varies the amount

of display controlled by the delayed time base.

is

3-43. These controls select the point on the sync

signal that starts the sweep. Triggering point is
adjustable
INT position.

at

any level on the displayed signal in

In the EXT position, the triggering
point is adjustable from +1.2V to -1.2V along the
sync signal. Delayed TRIGGER LEVEL has no
function when AUTO/TRIG

3-44. TRIGGER HOLDOFF.

3-45. This adjustment

is

set to AUTO.

is

a

dual purpose control.
When the control is rotated out of detent position,
the first portion of the control acts
frequency stability control.
gering on

is

rotated further out of detent position,

as

a

high

frequency waveforms.

trigger holdoff and allows the instrument

This

prevents double

as

As

the control

it

functions

a

high

trig-

to

synchronize on complex waveforms.

3-46. SLOPE.

3-47. These switches determine whether the sweep
triggers on the positivegoing

(-1

portion of the sync signal. When the AUTO/

(+)

or negative-going

TRIG is set to AUTO, the delayed slope control

has no function.

3

-4

Model 1707B Operation

17070-R-11

Figure 3-2. Sweep Combinations

3-48.

SWEEP MODE.

The HF REJ switch attenuates signals above approxi­mately 30 kHz and can be used to prevent high

3-49. This group of switches selects the type of main

frequency noise from triggering the sweep.
and delayed sweep triggering. Main sweep free runs
in AUTO, giving a bright base line in the absence

of

a

sync signal. However, if a sync signal of 40 Hz
or greater
and triggers the sweep. Due to the presence of

is

applied, it overrides free-run operation

a

base line, the auto sweep mode can be used for most

applications. Use NORM if the sync signal is erratic

or is less than 40 Hz. The sync input signal is always

i

needed in NORM to generate a sweep. When the
SINGLE pushbutton is engaged, the sweep

is

3-54. MAGNETIC INTERFERENCE.

3-55. The CRT is provided with a mu-metal shield
for protection against magnetic fields. Due to the

sensitivity
netic fields from nearby motors, ac line transformers,
etc., may still result in noticeable beam deflection.
In this event, reorient or relocate the instrument with
respect to the interfering device.

of

the CRT,

it

is possible that strong mag-

generated only once. To sweep again, push RESET
pushbutton and release. This arms the sweep circuit.

3-56. BATTERY RECHARGE OPERATION.

This feature is particularly useful for viewing or

photographing single transient waveforms.

3-50. When AUTOA'RIG is set to AUTO, the de­layed sweep
When AUTO/TRIG

starts

at

the end of the delay time.

is

set to TRIG, the delayed sweep

is started by the first sync signal after the delay time.

Use only the HP Model 10103B Battery

Pack with the Model 1707B.

To recharge Model 10103B Battery Pack, pro-

3-57.

NOTE

ceed as follows:

3-51.

TRIGGER SELECTION.

a. Set front panel POWER switch to off.

3-52. Main and delayed trigger source
by this group of switches. In the INT position, sweep
is synchronized to the vertical deflection signal.
When EXT is selected, the sweep

is

signals applied to the EXT TRIG INPUTS connector.

is

selected

triggered by sync

b. Set rear panel POWER MODE switch to AC

LINE.

Connect ac power to the instrument. This

c.
sends 400 milliamperes of charge current to the bat­tery. Recharge time is approximately 14 hours. (With

3-53. The trigger coupling switches determine the
type of main and delayed sync coupling. Direct
coupling (DC)
dc to less than

is

normally used for sync signals from

20

Hz. Capacitive coupling (AC) blocks

the ac POWER switch set to ON, a trickle charge

of

approximately

40

mA is applied to the battery.)

3-58. PREOPERATIONAL ADJUSTMENTS.

the dc component of a sync signal and passes only
the ac component. AC coupling does, however,
tenuate signals below
tenuates signals below approximately

)

used, for example, to prevent power line or other

20

Hz. The LF REJ switch

15

kHz and is

at­at-

3-59.

INITIAL TURN-ON.

3-60.

To

place the Model 1707B into operation, per-

form the following steps:

low frequency signals from triggering the sweep. The
delayed trigger circuits do not have

a

LF

REJ switch.

Set INTENSITY to full counterclockwise.

a.

3-5

Operation

b. Set vertical POSITION A and B to midrange.

Set DISPLAY to desired mode of operation.

c.
d. Set VOLTS/DIV to 5V

Set channel A and B verniers to CAL detent.

e.

Place B POLARITY to NORM.

f.

Set vertical coupling channel A and B to

g.

GND.

Set HORIZONTAL POSITION to midrange.

h.

Set main TIME/DIV to 1 mSEC.

i.

Set delayed TIME/DIV to OFF.

j.

k.

Set main and delayed VERNIER to CAL

detent.

Set main AUTO/NORM to AUTO.

1.
Set main INT/EXT to INT

m.

Set sweep display to MAIN sweep.

n.

Verify
MODE

0.

Apply operating power and allow 15 minutes

warm i'up time.

Set INTENSITY

p.

Connect signal(s) and proceed with meas-

q.

urements.

3-61.

FOCUS

To adjust FOCUS and ASTIGMATISM pro-

3-62.
ceed as follows:

a. Set all pushbuttons out.

b. Set Model 1707B channel A controls as

follows:

proper position of POWER

switch located on rear panel.

so

that trace

AND ASTIGMATISM ADJUST.

is

just visible.

Model 1707B

0

3-63.

3-64. Figure 3-5 through 3-7 are operating plates
containing step-by-step operating procedures indexed
to photographs.

PE RAT1

N

G

PRO C

E

D

U

RES.

3-65. OPERATORS PERFORMANCE

CHECK.

3-66. The operation of the Model 1707B may be
checked without use of additional test equipment by
using the CAL 1 VOLT output
These operating tests will functionally check each of
the display modes and the front-panel controls. To
check specifications listed in table
V for performance checks. The operation check must
be performed in the sequence given. Do not attempt

to

start a procedure in mid-sequence,
steps depend on control settings and results of pre­vious steps. If any of the results are unobtainable,
refer to Section V, Performance Checks and Adjust­ment Procedure, or Section VIII, Schematics and
Troubleshooting.

Set Model 1707B controls as follows:

a.

channel A VOLTS/I)IV
channel A coupling
channel A vernier..
DISPLAY.
trig..

B POLARITY..
main VERNIER
delayed VERNIER.
sweep display.

main TIMWDIV.
delayed TIME/DI

DELAY TIME

AUTO/NORM
main INTiEXT

delayed INT/EXT..
delayed slope

........

.....................

...................

...

............

...................

......................

......................

.........................

main TRIGGER LEVEL
TRIGGER HOLDOFF

SWP

MAG

.......................

as

a

signal source.

1-1,

refer to Section

as

succeeding

...............

.......

.......

................

A ONLY TRIG

NORM

..............

.........

........

..............

.5 mSEC

AUTO

..................

......

for stable triggering

............

as

required

NORM

.02

A

CAL

INT
INT

+

t

VOLTS/DIV
DISPLAY..
POSITION

c. Set main TIME/DIV to
d. Turn main vernier full ccw.
e. Set INTENSITY to observe dot.
f. Adjust FOCUS and ASTIGMATISM controls

for best defined dot,

3-6

..........................

............................

..........

as

dot moves slowly across CRT.

center trace on CRT

.2

SEC.

.01

A

b. Set INTENSITY, FOCUS and POSITION con-

trols for desired display in center of screen.

C.

Connect CAL 1 VOLT output to channel A

INPUT using the

d. Adjust main TRIGGER LEVEL for stable
display. Observe approximately 5 positive-going
pulses with an amplitude of 5 div.

e. Set delayed TIME/DIV to

intensified portion of sweep.

XI0

probe.

.2

mSEC. Observe

Model 1707B Operation

‘j

Intensified portion should cover 4
to 5 divisions.

Adjust DELAY TIME until intensified portion

f.

is centered on CRT.

g. Set sweep display switch to DELAYED
SWEEP. Observe that intensified portion
to full

10

divisions.

Set sweep display switch to MAIN SWEEP.

h.

Vary DELAY TIME control. Observe that in-

i.

tensified portion moves smoothly along display.

j.

Set delayed AUTO/TRIG control to TRIG.

k.

Adjust delayed TRIGGER LEVEL for stable

intensified portion of the trace.

1.

Vary DELAY TIME control. Observe that
leading edge of intensified portion jumps from one
positive slope leading edge to next.

Set delayed TIME/DIV to OFF.

m.

\

l

n. Rotate main VERNIER counterclockwise to
stop. Observe
and eleventh graticule lines.

Disconnect calibrator signal from vertical am-

0.

plifier.

NOTE

is

15

or more pulses between first

expanded

3-69. AUTO VERSUS NORM.

3-70.

In AUTO operation, there will always be a base
line. A trigger signal of
AUTO operation and produces

40

Hz

or

higher overrides

a

stable pre­sentation. Adjustment of main TRIGGER LEVEL may
be necessary for a stable display. If the trigger
less than 40
tion should be used. A trigger signal

Hz,

or if

it

is

unstable, NORM opera-

is

always

needed in NORM operation to generate a sweep.

3-71. AUTO VERSUS

TRIG.

3-72. Auto delayed sweep operation is achieved

when

AUTO/TRIG pushbutton
the delayed sweep to start
time

as

set by the DELAY TIME control.

3-73. AC VERSUS DC.

3-74.

Ac coupling removes the dc level of trigger

is

out. This causes

at

the end of delayed

signals operations. Use of the LF RE J control prevents

low frequency noise from triggering the sweep.

3-75. MIXED SWEEP.

3-76. In this mode, the first part of the present-

ation is displayed on a time base set by the main
TIME/DIV switch. The last part of the presentation
is displayed on a time base set by the delayed TIME/

DIV switch. The delay between the

main sweep and the start of the delayed sweep

start

of the

is

determined in part by the DELAY TIME control.

3-77. DELAYED SWEEP.

is

Set main TIME/DIV to

p.

Set main TRIGGER LEVEL to full clockwise

q.

position.

Set main AUTO/NORM to NORM.

r.

s.

Select SINGLE operation.

t. Press RESET pushbutton. Reset indicator

should go on. Observe no sweep.

Rotate main TRIGGER LEVEL to full counter-

u.

clockwise position. Observe one sweep and reset
indicator goes off after sweep.

v. Set AUTO/NORM to AUTO.

Press RESET pushbutton. Observe one sweep.

w.

3-67.

)

3-68. The following paragraphs provide additional

OPERATING INFORMATION.

information concerning the use of some specific
functions.

.1

SEC.

3-78. Signals can be displayed

at

100

ns/div with

3% accuracy. Displays can also be expanded up to

10

ns/div

(XI0

magnification) with

5%

accuracy.
This expansion permits viewing critical rise time or
signal shapes with increased resolution. The portion

to be expanded
control in main sweep operation.

is

selectable by the DELAY TIME

It

is

then expanded
to the sweep speed selected by the delayed TIME/
DIV switch after delayed sweep operation

is

selected.
Because the sweeps are independent, the main
VERNIER may be out of CAL position while the
delayed sweep is still calibrated.

3-79. Sweep jitter can be reduced by use of the
delayed operation. By using TRIG mode instead of

AUTO in delayed sweep operation, the delayed sweep

starts on a new trigger. This reduces the jitter

that has accumulated since start of the main sweep.

3-80. LINE SYNC.

3-81. Line sync

is

selected by depressing both
main HF REJ and LF REJ pushbutton. This method
of time base synchronization

is

useful when observing

waveforms that are timerelated to the line frequency.

3-7

Operation

Model 1707B

2

i,i

1.

Set DISPLAY to A.
Set channel A coupling to GND.

2.

Set trig to NORM TRIG.

3.

4.

Set sweep display to MAIN SWEEP.

5.

Set AUTO/NORM

Adjust channel A DC BAL for minumum ver-

6.

3

to

AUTO.

tical shift while rotating channel vernier
between CAL, and maximum attenuation.
attenuation.

7.

Set DISPLAY to

Repeat steps 2 through 6 for channel

8.

B.

B.

3-8

NOTE

If trace

is

not on CRT, press
BEAM FINDER and adjust DC BAL
until trace remains on screen

Figure

3-3.

DC BAL Adjust

17070-R-1A

Model 1707B Operation

17078

OSCILLOSCOPE

1

,'7

Set DISPLAY to A.

1.

2.

Connect CAL 1 VOLT output to channel A
INPUT, using the Model 10006B 1O:l probe.

Set channel A coupling to DC.

3.

4.

Set channel A VOLTS/DIV to

!

to CAL (detent).
Set main TIME/DIV to

5.

6.

Adjust channel A CAL for exactly 5 div of

.5

mSEC.

.02

and vernier

vertical deflection.

7.

Set DISPLAY to B.

8.

Repeat steps 2 through 6 for channel

B.

Figure

3-4.

CAL Adjust

3-9

Operation Model 1707B

32

1

1.

Set DISPLAY to A

2.

Connect signals
and B INPUT connectors.

Set both VOLTS/DIV and verniers to similiar

3.

settings.

4.

Set time base controls
desired display.

Set B POLARITY to NORM.

5.
The resultant display represents the algebraic

6.

sum of channel A and B signals.

DIFFERENTIAL OPERATION

Perform steps 1 through 4 of algebraic addition

A.

operation.

5;B

ALGEBRAIC ADDITION

2

+

to

be added to the channel A

3

B.

as

required to obtain

3-10

B.

C.

Figure

Set B POLARITY to INVT.

The resultant display represents the difference
between channel A and B signals.

Algebraic Addition and Differential Operation

3-5.

17078-R-3A

Model

1707B

\-rrr--

1

10

5,9

Operation

7

9

Apply signal to channel A INPUT.

1.

2.

Set main TIME/DIV
Select INT

3.
connect trigger to main EXT TRIG INPUTS.

Adjust main TRIGGER LEVEL for stable trig-

4.

gering.

5.

Set AUTO/TRIG to AUTO.

Set delayed TIME/DIV to desired sweep speed.

6.

7.

Adjust DELAY TIME
trace is over area

or

EXT as desired. If EXT is selected,

to

desired sweep speed.

so

intensified portion

of

trace to be investigated.

of

8.

Set sweep display switch to DELAYED
SWEEP. Intensified portion of main sweep is
now displayed across entire CRT.

9.

If jitter is observed
AUTO/TRIG
strument
and reduces jitter.

If EXT triggering is selected,
then trigger must be applied to delayed

EXT TRIG INPUTS.

10. Adjust delayed TRIGGER LEVEL for a stable
display.

to

to

trigger on the signal of interest

on

delayed sweep, set

TRIG. This allows the in-

NOTE

Figure

3-6.

Delayed Sweep

17076-R-4A

3-11

Operation

Model 1707B

1

1.

Connect the signal to channel A INPUT.
Set trig to A ONLY TRIG or NORM TRIG,

2.

2

3

as

desired.
Set main and delayed INT/EXT

3.

as

desired. If
EXTis selected, connect trigger signals to main
and delayed EXT TRIG INPUTS.

Set main and delayed TIME/DIV

4.

to

desired

sweep speeds.
Adjust main and delayed TRIGGER LEVEL for

5.
stable triggering.

6.

'Set sweep display to MIXED SWEEP.

7. Adjust DELAY TIME until desired waveform
combination is displayed.

3-12

17076-R-SA

Figure 3-7. Mixed Sweep

Model 1707B

Theory

4-1.

4-2. This section contains functional descriptions
keyed to
and simplified block diagrams of circuit groups. A

detailed explanation of circuit functions, keyed to the

schematics, is provided after the block diagram dis-

cussion. The schematics are located in Section VIII.

4-3.

4-4. An overall explanation of circuit operation
based on block diagrams (schematics 1 and 2)
sented to generate a basic understanding of the

instrument. For simplicity, the block diagrams are

drawn for function and do not show all circuit details.

4-5. This instrument consists of
rectifier, gate assembly, and three modules. The
modules are as follows:
containing attenuators, vertical preamplifier, delay

1

line, and vertical output amplifier;

amplifier module containing trigger assembly, hori­zontal mother board, main and delayed integrators,
main and delayed sweep time assemblies, holdoff
and comparator assembly, horizontal mode assembly,
horizontal preamplifier, and horizontal output ampli-

fier; and

voltage mother board, low voltage converter, low
voltage rectifier and filter, high voltage oscillator,
and high voltage multiplier.

4-6. INPUT ATTENUATOR. (See schematic 1.)

4-7. The attenuators are compensated voltage­divider types. They provide division ratios of 1, 2,

10, and 100, giving nine separate sensitivities. Each
decade, input sensitivity range has an input capaci­tance adjustment and an attenuator compensation
adjustment. Coupling (AC, GND, and DC) is also

controlled in the attenuator stages.

4-8. VERTICAL PREAMPLIFIER.

4-9. The vertical preamplifier provides amplifi­cation to the input signals for drive to the vertical
output amplifier. Channel A sync and composite sync
signals originate in the vertical preamplifier. The
sync signals are applied to the trigger assembly for in-

)

ternal triggering. Channel switching, chop operation,
and display mode are also accomplished in the ver­tical preamplifier (schematic

INTRODUCTION.

an

overall block diagram of the instrument,

BLOCK DIAGRAM DISCUSSION.

a

(1)

vertical amplifier module

(2) a horizontal

(3)

power supply module containing low

7).

SECTION

IV

PRINCIPLES OF OPERATION

4-10. DELAY LINE.

4-11.

The delay line provides approximately 160-11s
delay to the vertical signal, allowing the horizontal
circuits sufficient time to react to the trigger signal

so

that the event caused by the trigger can be

observed on the fastest sweep.

4-12. VERTICAL OUTPUT AMPLIFIER.

4-13.

The vertical output amplifier provides drive

to

the CRT vertical deflection plates.

4-14. TRIGGER CIRCUITS.

is

pre-

CRT, line

5,

4-15. The trigger assembly provides the main and

delayed trigger signals to the integrators. Trigger
modes are selectable in this assembly. The main
trigger circuit provides two outputs to the main in­tegrator (schematic
trigger that is generated by the trigger gate driver.
The output of the trigger gate driver is controlled

by the inputs to the gated Schmitt trigger. One input

to the gated Schmitt trigger is the trigger signal and
the other input
grator. When the reset signal is high, the gated
Schmitt trigger is inoperative and no trigger signal

is generated. When the reset signal is low, the gated

Schmitt trigger
will be generated if there is an internal or external

trigger input. The other output is the bright­line auto level which is provided only in the auto mode.
The delayed trigger circuit functions identically to the
main trigger circuit and provides a trigger signal
to the delayed integrator (schematic

4-16. MAIN INTEGRATOR.

4-17. The main integrator initiates a horizontal
sweep from the trigger input. When the trigger signal

is applied

activates and produces the horizontal sweep ramp.
The Miller integrator is connected to the main sweep
timing components (schematic

DIV

integrator. The output of the Miller integrator is ampli­fied and applied to the horizontal amplifier circuits.

4-18. The horizontal sweep is also compared to
volt reference by the ramp comparator which drives
the main integrator set-reset multivibrator. The set­reset multivibrator, in conjunction with the holdoff
and comparator circuit, controls the amplitude and
timing sequence of the sweep ramp. When the

to

the gate amplifier, the Miller integrator

switch controls the ramp output from the Miller

1).

One output is the main

is

the reset signal

is

operational and a trigger signal

from

the main inte-

12).

11).

The main TIME/

a

12-

4-1

Theory

Model

1707K

sweep ramp reaches
turns on and resets the gated Schmitt trigger to
logic high

(1).

+12

volts, the ramp comparator

a

The signal from the holdoff amplifier

determines the holdoff time of the circuits and sets

the gated Schmitt trigger to a logic low

(0)

for

a

new sweep.

4-19.

When the bright-line auto circuit is used, the
set-reset multivibrator provides a ground for the
bright-line auto level and terminates the sweep. This
allows the sweep signal to return to its starting point.

4-20.

At the same time that the main ramp

is

gener­ated, the alt amplifier provides an output to the
vertical preamplifier flip-flop for alt operation.

4-21. HOLDOFF AND COMPARATOR.

4-22.

The holdoff and comparator establishes the
time interval between trigger points. The time in­terval is adjusted by the TRIGGER HOLDOFF control.

A

signal from the main integrator set-reset multivibr­ator activates the holdoff circuit. When the holdoff
is activated, a ramp, determined by the holdoff ampli­fier

RC

circuits and the TRIGGER HOLDOFF control,
is generated. When this ramp reaches a predetermined
level, it activates the main integrator set-reset multi­vibrator. The set-reset multivibrator then sets the

trigger set-trigger gates low for a new sweep.

4-23.

The main horizontal sweep ramp from the
Miller integrator also drives the comparator in the
holdoff and comparator assembly. The main sweep is

compared to a voltage set by the DELAY TIME dial.
When the main sweep is equal to this voltage, the

Schmitt trigger sends a pulse to the delayed inte­grator set-reset multivibrator. This sets the delayed
gated Schmitt trigger low and arms the delayed inte­grator for a new sweep.

4-24. DELAYED INTEGRATOR.

4-25.

The delayed integrator operates the same as the
main integrator, except for the following differences.
This circuit has no bright-line auto input. In the auto
mode, a voltage is applied to the input amplifier which
activates the Miller integrator for a delayed sweep
signal. The Miller integrator is connected to its own
RC components for generating the delayed sweep.
Sweep limits are set by a comparator and set-reset
multivibrator as in the main integrator.

4-26.

The set-reset multivibrator has an input from

the main integrator set-reset multivibrator. If the main

sweep terminates, a voltage from the main integrator

is sent to set-reset multivibrator. The multivib­rator terminates the delayed sweep and

arms the

delayed gated Schmitt trigger for a new sweep.

INTERNALSYNC

SET-RESET

MULTIVIBRATOR

GATED SCHMITT

TRIGGER INPUT

GATEDSCHMITT

TRIGGER OUTPUT

OUTPUT

INTEGRATOR E

MAIN

OUTPUT

HOLDOFF

AMPLIFIER F

IN PUT

TO TI T2

I

A

I

I

B

I

I

I

I

I

D

I

II

11
11

I

I

II

II

ii

T3 T4 T5

1

I

I

II

II

I

1

1703A-E-1B

4-2

Figure

4-1.

Timing Sequence

Model

1707B

Theory

4-27. TIMING SEQUENCE.

4-28.

Figure 4-1

is

an illustration representing the
time relationship between the trigger and sweep
timing circuits.

Waveform A represents the input
signal to the vertical circuits and the internal sync
signal. Waveform B represents the main integrator set-

reset multivibrator output. Waveform C represents the
input

to

the gated Schmitt trigger and waveform

D

represents the output. Waveform E represents the in­put to the holdoff and amplifier.

4-29,

At

To,

the multivibrator output

is

high,

holding the gated Schmitt trigger high, preventing

;I

sweep signal. At Ti, the holdoff time

is

complet­ed and the multivibrator output goes low, activating
the gated Schmitt trigger. At T2, the trigger signal

goes

positive and the gated Schmitt trigger output

goes

low, activating the main integrator which pro-

duces a horizontal sweep signal.

+:(O.

At

'I';j,

the sweep

is

terminated and the set­reset multivibrator output goes high. When the set­reset multivihrator goes high, the holdoff time signal
starts and the gated Schmitt trigger is locked high,
preventing a sweep. At the completion of holdoff
time, the sequence

is

repeated.

4-37. The line rectifier rectifies and filters the power
transformer ac output of approximately 36 volts. This
voltage

is

applied to the voltage regulator and

ripple filter which filters out the 120-hertz ripple.
4-38. The voltage regulator output

is

applied to the
low voltage converter. This stage converts the input
dc power to usable output dc of different voltage

levels. The low voltage converter oscillates between

10 kHz and 45 kHz, depending upon the input voltage
and the output power.

4-39. The voltage coupled from the converter to the
low voltage rectifier

is

filtered and applied to the
low voltage mother board which provides low voltage
distribution to the power supply module. A portion of
the

t15

and -15 volts

is

fed back to the low voltage
regulator which determines the frequency and duty
cycle of the converter for output voltage regulation.

4-40. The filtered voltages from the low voltage

mother board are coupled to the gate board. The gate

board provides filtering, fuse protection and distri­bution of the low voltage supplies to the rest of the
Model 1707B circuits.

4-41. HIGH VOLTAGE POWER SUPPLY.

a

4-31. HORIZONTAL MODE ASSEMBLY.

4-42. The high voltage power supply consists of the

high voltage oscillator, power transformer, rectifying

4-:12.

i

This assembly controls main sweep, mixed
sweep, delayed sweep, external horizontal input and
the trace intensity in these modes. A switch selects
the type of sweep signal to be displayed.

networks, and high voltage multiplier. When the
instrument

is

turned on, the high voltage oscillator acti­vates, coupling voltages from pins 1 and 2 into the
secondary pins 6 and

7,

5,

8, and

9.

Pins

11

and 10

are connected to filaments of the CRT. The secondary

4-:{3.

The blanking circuit blanks the trace in the

main sweep, delayed sweep and mixed sweep modes.
The blanking signal is applied to the gate assembly
(schematic

2)

which controls the high voltage oscil-

lator assembly.

4-:M.

In the

EXT

HOKIZ INPUT mode, the blanking

signal

is

grounded and the output from the external

horizontal amplifier is connected to the horizontal

voltage

at

pin

7

is

connected through arectifying diode

to the control grid of the CRT. Pin 8 of the secondary

is

connected through a rectifying diode to the cathode.

A correction voltage

is

coupled from this diode back
through a resistive divider network, controlling the
current source. The current source controls the oscil­lator amplitude and thus the high voltage oscillator
output. The CRT voltages are negative, except for the
post-accelerator voltage.

preamplifier. The blanking circuit also intensifies the
delayed portion of the sweep in the main sweep
and mixed sweep mode. When the delayed TIME/

1)IV switch

is

set to some position other than

OFF,

the main sweep intensity is reduced and the delayed
sweep intensity is held at a normal level, providing
trace intensification.

4-35. LOW VOLTAGE POWER SUPPLY. (See sche­matic

2.)

4-36.

The low voltage power supply operates from
three different power sources. The sources are ac
line, internal battery or external dc line. The ac line
is applied to the input power module which

,i

able for 115- or 230-volt operation and has an ac

line protection fuse. The ac input

is

is

select-

applied to

a

step-down power transformer.

4-43. The CRT cathode voltage

is

fed back to the cur­rent source. If the cathode voltage becomes more
negative, less current

is

supplied to the high volt­age (hv) oscillator. With less current supplied, the
amplitude of the hv oscillator output

is

reduced and
the cathode voltage will return to its normal operating
value. If the cathode voltage becomes less negative,
more current

is

supplied to the hv oscillator. The out­put amplitude now increases and the cathode voltage
again returns to

6.73 kV peak-to-peak voltage
the high voltage transformer. This voltage
to the high voltage multiplier circuit where
multiplied by,3. The

its

normal operating value. A

is

present

at

is

20.2

kVoutput

is

applied

pin 9 of

applied

it

is

to

the

post-accelerator on the CRT.

4-3

Model 1707B

Theory

1

turn on. This clamps the emitters
A5A4Q23 to approximately t6 volts, turning them off.

When A5A4Q20 is turned off, its emitter approaches

0

volt and the diodes turn off. This permits the

emitters of A5A4Q221A5A4Q23 to fall to approxi-

mately t4.2 volts, turning the transistors on.

4-65. The channel B switch consists of normal output
amplifier A5A4Q25/A5A4Q26, inverted output am­plifier A5A4Q24/ASA4Q27, and transistor switch

A5A4Q21. Transistor switch A5A4Q21 functions

exactly as explained in paragraph 4-64 for A5A4Q20.
Depending on the position of B POLARITY switch
A5S1, the normal output amplifier or the inverted
output amplifier will turn on, but not both. When
A5A4Q20 is turned off and A5A4Q21 is turned-on,

only the channel A signal appears at the output of
the channel switches. When A5A4Q20
and A5A4Q21 is turned off, only the channel B signal

appears at the output. When both A5A4Q20 and

A5A4Q21 are turned off, the algebraic sum
channel A and channel B signals appears
output. If the normal output amplifier
of the channel switches
If the inverted output amplifier
the channel switches is the difference between the

two signals.
4-66. Feedback amplifier A5A4Q28IA5A4Q29 am-

plifies the composite signal and drives the delay
line driver. The feedback circuits improve frequency

response by compensating for collector-to-base

capacitance.

4-67. The channel A sync amplifier consists of
A5A4Q18, A5A4Q19, and A5A4Q17. Its inputs are
from the channel A amplifier on schematic 4 and
its output
matic 7.

is

to

the sync selection circuits on sche-

is

the sum of the signals.

of

A5A4Q22/

is

turned on

is

on, the output

is

on, the output

of

at

the

the

of

and three inputs. When

A5A4U2 acts as an asynchronous flip-flop and the

a

output

C

is low, A5A4U2 again acts

flip-flop and the2 output

C

are low, both Q and Q are high. When both S and

C

are high, A5A4U2 acts
tive going transition on T will cause the flip-flop
change states.

4-71. The astable multivibrator

A5A4UlA and A5A4UlB. In all positions of the dis­play switch, except chop, the astable multivibrator
is disabled because pin 2 of A5A4UlA
(held low) by the front section of A5S2A. In the
chop position, the ground is removed and pin 2 goes
high. During sweep time, the alt trigger

Because both inputs are now high, the output of
pin 3 is low. Pin 6 of A5A4UlB is high and the
astable multivibrator is running.

4-72.

The clocked flip-flop is driven by A5A4UlC and
A5A4UlD. In the A, B and A + B positions of the
DISPLAY switch, the T input to the clocked flip-flop

is held high because pin 9 of A5A4UlD is grounded
(held low) by the rear section of A5S2A.

A,

the S input of A5A4U2
section of A5S2C and A5A4Q36 is turned on. In
position
section of A5S2C and A5A4Q37 is turned on. In
position A + B, both S and C are grounded and both
A5A4Q36 and A5A4Q37 are turned on.

4-73.

In
PLAY switch, the S and C inputs of A5A4U2 are
ungrounded and go high. Pin 9 of A5A4UlD
ungrounded and goes high. In these positions, changes
at pin 10 of A5A4UlD control the state of the flip-flop.

is

high. When

B,

the

C

input is grounded by the rear

the CHOP and ALT positions of the DIS-

C

is

high and S is low,

S

is high and

as

an asynchronous

is

high. When both S and

as

a

J-K

flip-flop and a nega-

is

driven by

is

grounded

In

is

grounded by the front

is

high.

position

is

also

to

4-68.

Schematic
cuits (A5A4Q32/A5A4Q33) amplify the composite sig­nal and drive the delay line. Amplifier A5A4Q30/
A5A4Q31 selects and amplifies the composite sync
signal. The composite sync signal drives the sync
selection circuits on schematic 7.

4-69.

Schematic
7 control the channel switches (schematic
chop blanking, and select the trigger signal.

4-70. The steering logic circuits control the channel
gates and generate chop blanking. Astable multi­vibrator A5A4Q34IA5A4Q35 is activated when the
base of A5A4Q34 is high. It free-runs at approximately

800

kHz. When the base is low, it is prohibited from
running. A5A4Q36 controls the channel A gate
(schematic 5) and A5A4Q37 controls the channel
gate. A5A4U1 is a four-section integrated circuit (IC)
consisting of four NAND gates. Three of the four

I

sections operate conventionally but, because its two
inputs are tied together, A5A4UlB functions simply

as

an inverter. Flip-flop A5A4U2 has two outputs

6.

The vertical preamplifier cir-

7.

The circuits shown on schematic

5),

generate

B

4-74. In the

inultivibrator is permitted to free-run, its output
being routed
when the alt trigger is present, the output of the
astable multivibrator will cause the clocked flip-flop

to change states at each negative transition. The net
result being that the channel switches (schematic
change between channel A and channel B at a 400­kHz rate.

4-75. In the ALT position of A5S2, the astable
multivibrator is again disabled and pin 12 of

A5A4U1 C is held high. Each negative-going transi­tion of the alt trigger causes the clocked flip-flop
to change states. The net result being that the chan­nel switches (schematic
between channel A and channel B.

4-76. The chop blanking output of the astable
multivibrator is routed via the circuits on schematic

17 to the CRT blanking circuits
during the channel switching transitions.

CHOP

to

position of A5S2, the astable

pin 12 of A5A4UlC. During the time

5)

alternate,

at

the sweep rate,

to

blank the CRT

5)

4

-5

Theory

Modcl 1707K

4-77. The NORMTRIG/A

ONLY

TRIGswitch selects
either channel A trigger from schematic 5 or the com­posite trigger from schematic

6.

A5A4Q38 and

A5A4Q39 drive the main trigger circuit on schematic

8.

4-78. In the A + B position
the B section connects
A

+

I3

BAL potentiometer (schematic

of

th-e DISPLAY switch,

+15

volts (schematic 4)

5).

This permits

to

the

correction of any dc unbalance caused by turning
both the channel A and channel B switches on
together.

4-79.

DELAY LINE.

4-80. The delay line (schematic 6) provides 160
nanoseconds delay to the vertical signal. This offsets

the delay in the trigger and gating circuitry and

assures that part of the vertical signal is not lost

before these circuits react and

4-81. VERTICAL OUTPUT AMPLIFIER.

start

the sweep.

4-82. The vertical output amplifier (schematic 6)
consists of differential amplifiers A5A5Ql/A5A5Q2
with current source A5A5Q3, feedback amplifier
A5A5Q4/A5A5Q5, and cascade differential amplifier
A5A5Q6 through A5A5Q9. The amplifier receives the
composite signal from the delay line and drives the
vertical deflection plates of the CRT.

4-83.

Optimum high frequency response

is

obtained
from the amplifier by adjusting hf comp adj
A5A5C7, hf peak adj A5A5R30, and hf adj A5A5C12.

4-84. The feedback circuits of A5A5Q4 and A5A5Q5

improve frequency response by compensating for

collector-to-base capacitance.

4-85.

The BEAM FINDER switch limits the current

available

to

the differential amplifier. This reduces
the overall gain and assures that the beam will not be
deflected off screen when the BEAM FINDER

is

pressed.

4-86. TRIGGER CIRCUITS.

4-87.

The trigger assembly (schematics 8 and

9)

consists of the main and delayed trigger circuits.
Inputs are selected from the internal sync circuits
in the vertical amplifier, from the main EXT TRIG
INPUT, or from the delayed EXT TRIG INPUT. Two
outputs, the main trigger signal and the bright line
auto signal, are provided to the main integrator. The
delayed trigger signal

is

provided to the delayed

integrator.

4-89. The main INT/EXT switch selects a signal

from the circuits on schematic 7 or from the main

EXT TRIG INPUT.

4-90. The main AC/DC switch connects A6A2C1

in series for capacitive coupling or bypasses

it

for

direct coupling.
4-91. The main

LF

REJ switch (not used in delayed)

bypasses the frequency limiting circuit A6A2C12/

A6A2Rl or activates

it

to reject trigger frequency

components below 15 kHz.

4-92. The main HF

REJ

switch either bypasses the
frequency limiting network (A6A2R72/stray capaci­tance) or connects it

to

reject trigger frequency com-

ponents above 30 kHz.
4-93. The main slope switch reverses the inputs

to

A6A2Q1 and A6A2Q2. This permits triggering on
either slope of the trigger waveform.

4-94. The main TRIGGER LEVEL control permits
selection of the point on the trigger slope that initiates
the sweep.

It

accomplishes this by shifting the static

dc level of the main trigger amplifiers.
4-95. The FET source followers, A6A2QWA6A2Q2,

provide the high impedance required to prevent

loading of the trigger sources.

4-96. The emitter followers, AGA2Q3/A6A2Q4, pro­vide the required low impedance drive to the differ­ential amplifiers.

4-97. The differential amplifiers, A6A2Q5 through
A6A2Q8, drive the trigger gate drivers (schematic

9).

4-98.

The trigger gate drivers, gated Schmitt triggers,

and the trigger outputs for main and delayed are

nearly identical

so

only the main circuits will be
discussed. The bright line auto circuit will be ex­plained separately.

4-99. Schematic 9.

The trigger gate drivers,
A6A2Q17 and A6A2Q18 are a differentially driven
differential amplifier whose static dc level

is

closely controlled.

4-100. The gated Schmitt trigger, A6A2UlA and
A6A2UlB, consists of two OR circuits with biasing
and feedback to cause them to function

as

a

Schmitt
trigger. A step-by-step explanation of the gated
Schmitt trigger is given in figure 4-2. The gated
Schmitt trigger has two functions; to generate

a

signal to initiate the sweep upon receipt of a trigger,
and to prohibit further triggering during sweep and
holdoff.

4-88. Schematic

8.

The main trigger circuits and the
delayed trigger circuits are nearly identical, only
the main trigger circuits will be explained.

4-6

4-101. The threshold voltage for the gated Schmitt
trigger is set by the main trigger sensitivity adj
A6

A2

R46.

Model 1707B

Theory

TRIG

-

IN

TRIG IN

018

BASE

TRIG

IN

BASE

017

FROM SET­RESETMUL­TIVIBRATOR
TO UlA

U1B PIN 13

+0

I

I

I

1

I

I----'

I

I

I

FROM SET-RESET

MULTIVIBRATOR

1

I

I

I

I

I

I

I

I

TRIGGER

!I

I

I

I
I

I

--

II

!1

1

I

I

-+15V

RULES FOR

If any input

1.

is

2. If all inputs are

SWEEP PERIOD

1.

Main sweep begins (to).

(to

OR

HI, output

LO,

to

tl)

GATES

is

HI.

output is

2. Trigger inputs (waveforms A and B) from
Q17 and QlS are latched below the Schmitt

threshold (waveforms D and

3.

All inputs to UlA and UlB are

4.

Main trigger output

HOLDOFF PERIOD

1.

The sweep ends

(tl

to

(tl)

tp)

is

E).

LO.

HI (waveform

and the sweep com-

parator (schematic 10) resets the set-reset

multivibrator. Holdoff begins.

2. Pins 1 and

3.

Pins 6 and 8 of U1 go HI (rule

13

of U1 follow the reset level HI.

1).

This

causes:

Q19 turns off, main trigger output (wave-

a.

form

G)

goes

LO,

(schematic 10)
Pins 4 and 10 of U1 are unlatched. Their

b.

and the integrator

is

disabled.

levels may now go above and below the
threshold level
changes (waveforms D and

4RMED PERIOD

After holdoff ends, the set-reset multivibrator

1.

sets

LO.

The next

2.

(pin

4)

(tp

LO

(from Q17) on the arming input

causes the output of U1A

to

tg)

as

the trigger input

E).

to

go

(rule 2) and latch.

LO.

G).

LO

PIN4,UlA

U1B OUT

MAIN TRIG­GEROUT

U1B now has two

3.

I

from Q18 will cause the output of U1B to go

LO

(rule 2) and latch.

When UlB goes

4.

trigger goes HI (waveform

LO

LO

(waveform

inputs. The next

F),

G)

the main

and the inte-

LO

grator turns on to reinitiate the entire process.

VOTES

1.

I

FI

I
I

G

I

I

I

I
I

I

11

11

Latching occurs whenever the output

OR

gate goes

R1

(or R2)

LO.

The

LO

is

to

the collector of Q17 (or Q18).

coupled through

This assures that the output of the transistor
will never rise to the threshold voltage

varies with the trigger input. Conversely, the
circuit unlatches when the output of the
circuit goes

HI.

This permits the positive

of

as

an

it

OR

excursions of the trigger waveform to rise

above the threshold level.

2.

The threshold level of this circuit is critical
to proper operation. R3 permits adjustment of
the threshold level.

Figure

17078-C-2

4-2.

Step-by-step Operation ofthe Gate Schmitt Trigger

4-7

Theory

Model 1707B

4-102. The trigger output, A6AZQ19/A6A2Q20,
functions exactly like the trigger gate driver (para­graph 4-99).

4-103. When pin 8 of A6A2UlB goes low and
A6A2Q19 turns on, pin 9 goes high and A6A2Q20
turns off. A6A2Q21 turns on and saturates. If no
further trigger signals are applied, the collector volt­age of A6A2Q21 decays through an RC network
consisting of A6A2R54, A6A2Cl1, and A6A2R55.
When the voltage decays to approximately -16 volts,
A6A2CR12 turns on, A6A2Q23 and A6A2Q24 turn

on and Schmitt trigger A6A2&25/A6A2Q26 activates,

supplying current

to

the main integrator gate (sche-

matic 10) through A6A2R60. In this manner, the

sweep

4-104.

is

initiated

MAIN INTEGRATOR.

in

the absence of trigger pulses.

4-105. The main integrator assembly consists of the

main integrator and associated circuits (schematic

lo),

the set-reset multivibrator (schematic lo), and

the main sweep time assembly (schematic

11).

The
main integrator in conjunction with the main sweep
time assembly generates the main sweep ramp, pro­vides main blanking to the horizontal mode assembly

(schematic

15),

and alternate triggering

to

the verti-

cal preamplifier (schematic 7). The set-reset multi-

vibrator terminates the main sweep, terminates the
delayed sweep if the main sweep terminates, and sets

the gated Schmitt trigger (schematic 9) low

to

arm

for a new trigger.

4-106.

the absence of a main trigger,
tive pulse
or bright line auto, turns

Schematic

on

10.

Gate amplifier A6A3Q1, in

is

turned off. A posi-

either of its two inputs, main trigger

it

on. When A6A3Q1 turns
on, its collector approaches 0 volt and A6A3CR5,
A6A3CR6, and A6A3CR9 turn on. This initiates main

blanking, alternate trigger, and main sweep.

4-107. When A6A3CR5 turns on, it furnishes

a

ground to the horizontal mode blanking circuit
(schematic
the trace to be seen. When A6A3Q1
circuit is on, blanking the

15).

This turns the

CRT.

CRT

on and allows

is

off, the blanking

4-108. When A6A3CR9 turns on, it causes A6A3­CR13 and ramp control A6A3Q6 to turn off, activating
the integrator.

4-109. The Miller integrator consists of the com­ponents associated with A6A3Q7/A6A3Q8 (schematic

10) and, according to the position of the main TIME/

IIIV

switch, certain of the main sweep time assembly
components (schematic
of the main TIME/DIV switch
integrating capacitor between the collector

11).

Basically, the function

is

to connect a selected

of

A6A3Q8
and the gate of A6A3Q7. The switch also connects
an integrating resistor between the gate of A6A3Q7
and a calibrated charging voltage. During holdoff and

armed time, A6A3Q6
of A6A3Q7

to

is

turned on, clamping the gate

a

fixed voltage. When A6A3Q6 turns
off, a charging current through the integrating resistor
causes the integrating capacitor to start charging

(negatively). This change

at the output of A6A3Q8

is

integrated and appears

as

a

linear positive-going
ramp. Output amplifier A6A3Q9 drives the horizontal
circuits (schematic 16 via schematic

15).

The ramp

also drives the comparator.

4-110. During holdoff and armed time, A6A3CR12
turned on, clamping the emitter of A6A3Q5, holding
the transistor on, and setting the baseline of the ramp.
When A6A3CR12 turns off, the emitter of A6A3Q5

is

permitted

to

follow

its

base. As the ramp (from
A6A3Q8) rises on the base of A6A3Q5, the emitter
follows. When the ramp voltage equals the voltage
on the base of A6A3Q2 (approximately t12 volts),
the comparator changes states. This establishes the

magnitude of the ramp. The resultant current through
A6A3R6 causes common-emitter amplifier A6A3Q3 to
turn on.

4-111. The set-reset multivibrator (A6A3U1)

is

an
R-S flip-flop composed of two negated output AND
(NAND) gates. A step-by-step explanation of the

operation of the set-reset multivibrator
figure

4-3.

This circuit has several functions. First,

is

shown in

it permits the formation of a main trigger any time

a

trigger pulse arrives during armed periods.

this by providing a low (from its pin 6 output)

1

of

the set-trigger Schmitt (schematic

9).

Secondly,

It

to

does

pin

it terminates the delayed ramp any time the main
ramp terminates before the completion of the delayed
ramp. It does this
pin 6 of the set-reset multivibrator (schematic

in

the following manner; when

10)

goes high at the end the main sweep, the high

is inverted by A6A3UlC and applied

(as

a

low) to

pin 4 of the delayed set-reset multivibrator (schematic

la),

setting it and terminating the delayed sweep.
Third, it initiates holdoff. It does this by changing
states at the end of sweep time and presenting
high (from pin

6)

to

turn on A6A7Q1 and A6A7Q4

(schematic 14). Fourth, the set-reset multivibrator

prevents the formation of a new main trigger during
holdoff. It does this by presenting the high on pin
6 to pin 1 of the set-trigger schmitt (schematic 9),
disabling it. Finally, it terminates the main sweep
during operation of bright line auto.
follows: when pin 6 goes high

It

does this

at

the end of sweep

as

time, pin 12 goes low. This turns A6A3CFU on, ground­ing the bright line auto signal and turning A6A3Ql
off.

4-112. The AUTO/NORM switch grounds the bright
line auto input, preventing this circuit from initiating

a sweep.
4-113. The SINGLE switch disconnects the main

enable line. In this condition, the last sweep cycle
proceeds
main enable line

to

condition 3 (figure 4-3) but, because the

is

disconnected, cannot proceed

is

a

4

-8

Model

170713

'I'heory

If any input

1.
If

all

2.

RULES

inputs are HI, output is

HI

HI

HI

INITIAL (SET) CONDITION

is

FOR

NAND GATES

LO,

output is HI.

LO.

HI

-LO

(armed and sweep periods)

A6A7Q7

(schematic

14)

is turned off and

pin 1 is HI.

A6AX):I

(schematic 10) is turned off and

pin 5 is HI.
Pin 4 is not connected and is always HI.
Flip-flop is in

HI and pin 6 is

SET

LO.

condition

so

pin 12 is

Pin 3 is HI because it is connected to pin

12.

Pin 2 is

6.

Gate A complies with rule
Crate

LO

because it is connected

I3

complies with rule

to

pin

1.

2.

HI

LO

HI

HI

CONDITION

When sweep retrace starts

pin 5 goes HI.

Gate

H

still complies with rule

flop does not change states.

Flip-flop

At

pin 1 goes

Gate

12

Gate

goes

Flip-flop is again in

is

armed for change on pin

CONDITION

end of holdoff,

A6A7Q7

LO.

A

now complies with rule

goes

HI and pin 3 follows.

I3

now complies with rule

LO

and pin 2 follows.

SET

3

A6A3Q3

HI

-LO

4

condition.

HI

turns off and

1

so

flip-

1.

turns on and

1

so

pin

'2

so

pin

6

HI

HI

LO

LO

HI

AGA3Q:l

goes

LO.

CONDITION

(end

of

(schematic 10) turns on and pin

2

sweep)

Gate H complies with rule 1

HI

and pin 2 follows.

Gate

A

now complies with rule

12

goes

LO.

Flip-flop is in

KMET

condition.

Holdoff time starts

Figure

4-3.

Step-by-step Operation of the Set- reset Multivibrator

HI

so

pin 6 goes

2

so

pin

4

LO

HI

HI

HI

5

A6A7Q7

turns off, permitting pin 1 to go HI.

CONDITION

Gate A still complies with rule

/I

,LO

5

1

so

flip-flop

does not change states.

Flip-flop is still in initial

and is now armed for change on pin

(SET)

condition

5.

Theory

Model 1707B

further. The reset switch connects A6AlCl and, during
the initial surge of
is drawn low and the flip-flop goes to condition 4
(figure 4-3).

4-114. Lamp driver A6AlQ1 turns off whenever the

main reset and holdoff line goes low, causing the

RESET lamp (DS2) to light.
4-115.

bly, A6A5, provides selection of an integrating
resistor, an integrating capacitor, and a calibrated
charging voltage for the main integrator (schematic

10).
4-116. Section A of the main TIME/DIV switch,

A6A5S1, selects the integrating resistors for all sweep
speeds, except the five fastest speeds. The resistors
for the five fastest speeds are selected by section

Schematic

its

charging curve, pin 1 of A6A3U1

'.

11.

The main sweep time assem-

B.

4-117. A separate capacitor
two decades of the main TIME/DlV switch. The
and C sections of the switch select all except the
five fastest positions. The integrating capacitor
(A6A3C8) for the five fastest positions
wired into the main integrator circuitry (schematic

10). On all other positions, A6A3C8

with the selected capacitor.

4-1

18.

Operational amplifier A6A5Q1, A6A5Q2, and
A6A5Q3 provides a fixed charging voltage
lector of A6A5Q2. The charging voltage
calibrated for each two decades of the main TIME/
DIV switch. The D section of the switch selects
the calibrating potentiometers.

4-119. HOLDOFF AND COMPARATOR.

is

provided for each

is

permanently

is

in parallel

at

the col-

is

separately

turns on. As the charge on the selected capacitor
starts

to rise, A6A7Q7 turns off. The capacitor quickly

rises to +16 volts.

4-122. Whenever the voltage on the base of A6A7Q2
is less positive than the voltage on the base of
A6A7Q3, A6A7Q2
off. The voltage on the base of A6A7Q3 (and delay
time)

is

selected by DELAY TIME potentiometer
A6R3. When the main ramp rises to equal the selected
voltage on the base of A6A7Q3, the ramp comparator
changes states; A6A7Q2 turns off and A6A7Q3 turns
on. The resultant current through A6A7R7 causes

A6A7Q6 to turn on. At the end of main sweep time,
the circuit returns to the original state. The net
result
that point on the main ramp selected by the DELAY
TIME potentiometer and the end of the main ramp.
At all other times, the collector of A6A7Q6

4-123.

I3

flip-flop formed by two NAND gates and a third
NAND gate connected to function
When A6A7Q6 turns on, its collector goes low and
the Schmitt trigger changes states. The output transi­tion
A6A7R15. The resultant negative-going pulse enables
the set-reset multivibrator (schematic

result is
(relative to the main sweep) selected by the
DELAY TIME potentiometer.

4-124. DELAYED INTEGRATOR.

4-125. The operation of the delayed

matics 12 and 13)

of the main integrator (paragraph 4-104). Only the

exceptions will be discussed.

is

a

low at the collector of A6A7Q6 between

The Schmitt trigger (Ul) consists of an R-S

is

summed and differentiated by A6A7C9 and

that

is

turned on and A6A7Q3 is turned

the delayed sweep

is

nearly identicaI

is

enabled

integrator

to

as

is

high.

an inverter.

12). The net
at a time

(sche-

the operation

1

4-120.
assembly (schematic 14) have two functions: to
determine the time between the end of one sweep
and the arming of the next (holdoff), and
mine the time between the beginning of the main
sweep and the beginning or arming of the delayed
sweep (delay).

4-121. During sweep time, A6A7Q1
and A6A7Q4
by TIME/DIV switch A6A7S1
+16 volts. When the main set and reset voltage (from

schematic
A6A7Q1 turns on and A6A7Q4 turns off. The selected
capacitor starts discharging exponentially through

A6A7R13 and TRIGGER HOLDOFF potentiometer

A6R7. The rate of discharge (and holdoff time)
determined by the setting of A6R7. When the charge
on the selected capacitor has fallen to approximately

0

applies a low to the set-reset multivibrator (schematic

lo),

voltage goes low, A6A7Q1 turns off and A6A7Q4

4-10

The circuits on the holdoff and comparator

to

deter-

is

turned off

is

turned on. The capacitor selected

is

charged

10)

goes high

volt, A6A7Q7 turns on. A6A7CR6 turns on and

enabling

it.

When the main reset and holdoff

at

the end of sweep time,

to

about

is

4-126.
enabled by the delay enable voltage from schematic

14. Because the delay enable voltage does not occur
until that time selected by the DELAY TIME control,
the delayed sweep cannot
TRIG) until arrival of the
selected time.

4-127. When the AUTO/TRlG switch
the delayed sweep starts immediately after delay en­able. The AUTO enabling voltage

A6A4CR3 by a low on pin 12 of A6A4UlA. When
the delay enabling voltage causes the set-reset multi­vibrator to change states, pin
causes A6A4CR3 to turn off and the AUTO enabling
voltage turns A6A4CR1, A6A4CR2, and A6A4Ql on,
initiating the delayed sweep.

4-128.
4-129.

added to the delayed TIME/DIV switch
the delay function. When the delayed TIMEIDIV

Schematic

The output of A6A4UlC

Schematic

12. The set-reset multivibrator

start

first

13.

An OFF position has been

is

(AUTO/TRIG set

trigger pulse after the

is

set to AUTO,

is

grounded through

12

goes high. This

is

not used.

to

to

disable

Model 1707B

Theory

switch
Schmitt trigger (schematic 14) to disable
ground

cation (schematic

4-130. HORIZONTAL

4-131. The horizontal mode assembly (schematic

is

set to

is

OFF,

a

ground

is

applied to the

also used to disable the trace intensifi-

15).

MODE.

it.

The

15)

has two functions: sweep selection and blanking. Both

functions are controlled by sweep display switch

A6A8S1.

?-

1,'12.

Siiwp

Selection.

Section

1F

of A6A8S1

selects either the output of the main integrator

(MAIN

SWEEP), the output of the delayed integrator
(1)ELAYEl) SWEEP), the output of both (MIXED
SWEEP), or EXT

HORIZ

INPUT. The selected output

drives the horizontal amplifier (schematic 16).

4-133. Blanking.

The blanking circuit provides

blanking current to gate assembly A4 (schematic

17). Maximum current

in

the blanking output com­pletely blanks the CRT. No current output causes
maximum brightness of the CRT display.

4-134. Figure
part of the circuitry on schematic
circuitry on schematic 17. Current source

4-4

is a simplified schematic showing

15

and part of the

1

is

con­trolled by three blanking gates and one switch. The
main blanking gate comes from transistor switch
A6A3Q1 on schematic

10.

The delayed blanking gate

comes from transistor switch A6A4Q1 on schematic

12. The mixed blanking gate comes from transistor
switch A6A8Q2 on schematic

15.

Each gate goes low
at the appropriate time and grounds the diode(s)
to which it

is

connected.

4-135. 'I'he current sink draws current from two
sources: current source 1 and current source 2. The
impedance of current source 2

pedance of current source 1 varies according

is

constant. The im-

to

the
number of resistors (R3, R10, and R11) switched in
at any given time. When the impedance of current

source 1 decreases, more current
current source 1 and less current

is

drawn from

is

drawn from current
source 2. This causes the CRT to be less bright.
When the impedance of current source 1 increases,
less current is drawn from current source 1 and
more from current source 2. This causes the CRT

to

turn on brighter.

4-136. Main Sweep Mode.

In main sweep mode,

section B of sweep display S1B grounds CR7.

CR7, being grounded,

is

off

so

that R10 does not
supply blanking current during any part of main
sweep operation. At time

to,

both main and de-

layed blanking gates are off. CR5 and CR9 are on
and R3 and R11 are supplying current to the blanking
output. This causes the current in current source
2 to decrease and the CRT

is

blanked. At time

tl,

the main blanking gate closes and grounds

CR4. CR4, being grounded, turns on, causing CR5

to turn off. At this time, only R11

is

supplying blank­ing current; current source 2 supplies more current
and the CRT turns on. At time t2, the delayed

blanking gate closes. CR8, being grounded, turns
on, causing CR9
source

is

1

is

supplying maximum current and the CRT

to

turn off. At this time, current

supplying no current. Current source 2

is

maximum brightness (intensified). At time t3, the
delayed sweep terminates and the delayed blank-

ing gate turns off. CR9 turns back on and Rl1 supplies

blanking current. This causes the brightness of the

CRT to be reduced (not intensified). At time t4,

the main sweep terminates and the main blanking
gate turns off.

CR5

turns on and R3 current augments
the blanking current from R11 and causes the CRT
to turn off (blanked). The next time the main sweep
starts, the entire process will repeat.

4-137. Mixed Sweep Mode.

At the

start

of the

mixed sweep cycle, the mixed blanking gate (figure

4-4) is closed and CR7

is

turned off. Both main and
delayed blanking gates are off, permitting R3 and
R11 to supply current and blank the CRT

as

in main

mode. At time tl, the main blanking gate closes,
CR4 turns on, CR5 turns off, and again, only R11

supplies current, permitting the CRT to turn on.
At time t2, the delayed blanking gate closes. At this

time the mixed blanking gate opens but, because the
delayed blanking gate

is

closed,

R10

is

still unable
to supply current. When the delayed blanking gate
closes, CR8 turns on and CR9 turns off. Current
source 1 supplies no current to the current sink while
current source 2 supplies maximum current. Under
this condition, the CRT

is

at

maximum brightness

(intensified). At time t3, the delayed blanking gate
turns off. CR6 and CR8 turn off, CR7 and CR9

turn on, and both R10 and R11 supply current to

the current sink. The combined currents are enough
to blank the CRT. The events between

t3

and

t4

continue to take place but are not seen because the
CRT

is

blanked. At time

t4,

the main blanking

gate opens and the mixed blanking gate closes. R10
ceases to supply current but R3

starts

supplying
current; the net result being that the CRT continues
to be blanked. At the start of he next main sweep,
the entire process will repeat.

4-138. Delayed Sweep Mode.

In the delayed

sweep mode, the mixed blanking gate (figure 4-4)

is

open during the entire cycle. At the

of

the process, the main and delayed blanking gates

are open and current

R11.

At time tp the main blanking closes. CR4

is

supplied from R3, R10 and

turns on, CR5 turns off, and R3 ceases

start

to

(to)

supply

current. Because the delayed and mixed blanking

at

4-11

Theory

3LANKING
;ATE

SCHEMATIC 15

CRI CR3CR5CR6

Model

1707B

+25V CR6 CR8"

I

MAIN SWEEP

DELAYED SWEEP

MIXED SWEEP

MIXED BLANKING

I)

RIO

DELAYED

t

BLANKING

+25V GATE

CURRENT SOURCE 1

+0

I

I

1

TP

-

IA

"

R11

t

-15v

t

t

+25V

+l

I

I

CURRENT

4-

SOURCE 2

MAIN BLANKING

DELAYED BLANKING

4-12

I

TP 1

I

I

I

TP1

NOTE: IN MAIN SWEEP MODE, WHEN DELAYED TIME/DIV

OFF, THE INTENSIFIED PORTION

IS

NOT PRESENT. REFER TO PARAGRAPH 4-143.

I

I
I

I

OF

Figure

4-4.

-

THE MAIN BLANKING WAVEFORM

Blanking Sequence

IS

SET

TO

1707B-C-1

A

Model 1707B

Theory

gates are both off

blanked. At time

at

this time, the CRT remains

t2,

the delayed blanking gate

closes. CR6 and CR8 turn on, CR7 and CR9 turn
off, and R10 and Rl1 cease supplying current. Because

current source

1

is

supplying no current, the CRT
turns on to maximum brightness. Although intensifi­cation
mum brightness usually

is

not needed

in

delayed sweep mode, maxi-

is

needed because the de­layed sweep is at a much faster rate than the main
sweep. At time t3, the delayed blanking gate turns

off. CR6 and CR8 turn off, CR7 and CR9 turn on,
and both RIO and R11 supply current
CRT. The events between t3 and

take place but, because the CRT

to

blank the

t4

continue to

is

turned off, are

not seen. At t4, the main blanking gate opens.
The next main sweep will reinitiate the entire cycle.

4-139.

Mixed Sweep Blanking Circuit.

The mixed
sweep blanking circuit (schematic 15) consists of
emitter follower A6A8Q1, enabling gate A6A8UlA,
R-S flip-flop A6A8UlB/A6A8UlC, and transistor
switch A6A8Q2. The purpose of the circuit

is

to

turn

A6A8Q2 on and off (mixed blanking gate in figure

4-4) at the proper time.
4-140. In main sweep, the mixed sweep blanking

circuit is held in a position that permanently turns

A6A8CR7 off by the closed contacts of the SWEEP

DISPLAY switch.

are selected
in the various &odes. Current from A6A8R3 alone

to

fcause the correct CRT illumination

is

sufficient to blank the CRT.

4-

114.

l?stcrnal

(schematic

Horizontal Amplifier.

15)

consists of three cascaded differential

The amplifier

rtmplifiers, a controlled current source and a single­ended emitter follower output stage. The input of the

first stage, FET differential amplifier A8Ql/Q2,
driven single-ended from the output of a compensat­ed voltage divider consisting of A8R1, A8Cl/A8R2
and A8C2. The input circuit provides the required

high impedance and voltage step-down. Voltage
clamp A8CR1 and A8CR2 limits the voltage on the
gate of A8Q1 between

4-145.

Differential amplifiers A8Q3/A8Q4 and

+15

volts and

-15

volts.

A8Q5/A8Q6 are driven differentially from the output

of A8Ql/A8Q2. The differential drive removes com-

mon mode noise from the signal waveforms and in­creases the amplifier bandpass.

4-146. Controlled current source A8U1 provides
temperature compensation for the amplifier by main­taining equal currents into the two inputs. Normally,

a

change of current in A8Q6

change in current

in

A8Q5 which, in turn, causes

will

cause

an

opposite

a

change in the output voltage. When the current into

A8U1 pin 1 changes, the current into A8U1 pin

changes an equal amount and direction by action of

the controlled current source.

This

change opposes

the change in A8Q5 and thus provides compensation.

is

8

4-141. In the mixed sweep mode, A6A8Q2
turned on. When the main sweep

starts,

is

initially

the emitter
of A6A8Q1 goes low and the enabling gate enables
the

R-S

flip-flop. When the delayed sweep

starts,
delayed blanking goes low and the negative-going,
leading-edge transition

is

differentiated by A6A8C3
and A6A8R9. The resulting pulse causes the flip­flop to change states and A6A8Q2 turns off. When the

main sweep terminates, the positive-going transition
of the main blanking signal resets the

R-S

flip-flop

in preparation for the next cycle.

4-142.
volt power supply and supplies additional current

speed

4-143.

(schematic

Resistor A6A8R12

up

switching.

Delayed Sweep Off.

15)

the operator has the option of having

is

connected

to

the

In main sweep mode,

-15-

to

the main sweep intensified during the time the de­layed sweep
feature. When the delayed sweep
A6A8CR10

is

in progress, or of disabling this

is

set to OFF,

is

grounded. This permanently turns

A6A8CR9 off while in this mode of operation. Be­cause the closed contacts of the sweep display

switch cause A6A8CR7
sweep mode, A6A8R3

to

be off

at

all times in main

is

the only source of blanking

current in main sweeD with delayed sweep set to

OFF. The values of A6A8R3, A6A8R10, alid A6A8Rll

4-147. A8Q5 drives emitter follower A8Q7 which
provides the required single-ended low impedance
output. Amplifier gain

gain adj A8R15. A 10-to-1 gain ratio

is

adjusted by varying horiz

is

provided by

ext horiz VERNIER R6.

4-148.

GATE

ASSEMBLY.

4-149. The gate assembly (schematic 17) combines
(sums) inputs from five different sources and con­trols the brightness of the CRT. The basic input

is

the current sink consisting of A4R3, INTENSITY
potentiometer R1, and the -15-volt power supply.
The current sink draws current from one or more
sources. The basic source

is

A4Q1. The amount of
current drawn from A4Q1 depends on the setting of
the INTENSITY potentiometer. The amount of current

drawn &om A4Q1,

of

the CRT.

4-150. When the BEAM FINDER switch

in

turn, controls the brightness

is

pressed,
A4CR8 and A4R1 are connected in parallel with
the current sink, causing

it

to demand more current.
This causes the CRT to turn on with maximum
intensity.

4-151. When the Z AXIS INPUT

is

connected to

voltage source, A4R2 and the voltage are in parallel

a

4-13

Theory

Model 1707B

with the current sink, causing it

less current according to the potential

to

demand more or

at

the Z AXIS

INPUT.
4-152. The sweep blanking input (from schematic

functions

as

another current source. Because the

15)

current sink, at a given INTENSITY setting, draws

a

fixed amount of current, varying the current in one
current source will cause the current in another source
to vary. If the sweep blanking input supplies more
current, A4Ql will supply less. Conversely, if the
sweep blanking input supplies less current, A4Ql

will supply more.
4-13. The chop blanking input (from schematic 7)

is

also a current source. The chop blanking input

supplies either enough current to cause CRT blanking

or none.

4-154. Transistor A4Q1 draws current from the bases

of

A4Q3 and A4Q4. A4Q3 drives A4Q7 and A4Q4
drives A4Q8. A4Q7 and A4Q8 are connected in the
complementary configuration in order to provide the

required dynamic range

to

drive the intensity con-

trol grid of the CRT between cutoff and saturation.
4-155. The feedback circuit, consisting of GATE RE-

SPONSE

ADJ A4C7 and A4R18,

is

adjusted

to

opti-

mize the frequency response of the amplifier.

to set the gain increase
A6A9R2 is used to center the XI0

the REAM FINDER switch

is

supplied to the differential amplifier, reducing

its gain and assuring that the beam

to

exactly 10. MAG ADJ

display. When

is

pressed, less current

is

not deflected
off screen.
4-161. The output stage of the horizontal output am-

plifier

is

a

class B differential amplifier. Each side
consists of a pair of transistors connected in the
complementary configuration. Each output transistor

has a separate driver. Feedback circuits on both sides
improve the linearity of the amplifier.

4-162. INDICATOR DRIVERS.

4-163. The low battery indicator driver A4Q9 (sche­matic 19)

is

normally turned off. When the battery
output drops below a predetermined level (approxi­mately 22.5V), A4Q9 turns on, and A4CRl1 turns off.

A4R24, A4Cl1, and

DS1

become a relaxation oscilla-

tor, causing DS1 to flash.
4-164. Scale lamp driver A4Q10 (schematic 19)

a

linear amplifier that drives the scale illumination

is

lamps, A7DS1 and A7DS2. The brightness of the
lamps

is

dependent on the setting of SCALE ILLUM

potentiometer R3.

4-165. LOW VOLTAGE POWER SUPPLY.

i

4-156. CALIBRATOR.

4-157. The calibrator consists of emitter-coupled
multivibrator A4Q2/A4Q5, output amplifier A4Q6,
and avalanche diode A4VR1. The multivibrator

free-runs

at

approximately 1 kHz, turning A4Q6

on

and off with each cycle. A4VRl causes a 6.2-volt

square wave

at

the collector of A4Q6

as

it turns

on and off. The cal amp adj potentiometer A4R29

is adjusted
wave

4-158. HORIZONTAL PREAMPLIFIER AND OUTPUT
ASSEMBLIES.

4-

159.

to

cause a 1-volt division of the square

at

the CAL 1 VOLT output.

The horizontal preamplifier assembly (sche­matic 16) amplifies the sweep signal and controls
the horizontal position of the trace.

sweep length adjustment, trace magnification

It

also provides

(XlO),

and trace centering. The horizontal output amplifier
(schematic 16) provides class B drive to the horizontal
plates of the CRT.

4-160. The sweep signal
A6A9Q1. A6A9Q1

is

is

applied to the input of

balanced by temperature com­pensated amplifier A6A9Q2. Differential amplifier
A6A9Q3/A6A9Q4 provides differential drive

to

the
horizontal output amplifier. When the SWP MAG
switch
amplifier

10. X10 gain potentiometer A6A9R21

is

set to XlO, the gain of the differential

is

increased by a factor of approximately

is

adjusted

4-166. Model 1707B can be operated from

a

115-

volt ac line, a 230-volt ac line, an 11.5-volt to 36-volt

dc line, or from a self-contained battery. Circuits
and controls for converting these inputs

quired dc voltages are shown on schematics 19,

to

the re-

20,

and 21.

1-167.

POWER MODE switch

Schcvnntic

1.9.

Schematic 19 diagrams the

S2

and the circuitry for opera­ting from an ac power line. Power module assembly
A1 contains the ac line input fuse AlFl and the

115/230 input selection switch AlS1. The ac input

is applied

a

4:l

to

the primary of power transformer T1,

stepdown transformer.

Z1

provides full-wave
rectification for the line voltage. A2C1 and A2C2 are
ripple filter capacitors. A2Rl and ASCRl provide

a

40-mA trickle charge to battery BTl in ac line
operation when the POWER switch
and A3AlQ1 function

as

a

coarse series regulator.
At line input voltages above approximately
current through A3AlRl and A3AlVR1 establish

is

ON.

115

A3Q2

volts,

a

fixed voltage for the base of A3AlQl. This limits
the voltage output of A3Q2 to approximately

33
volts. A3AlVR4 provides a high dynamic impedance
to the power supply ripple voltage. A3AlCRl

is

a

protective diode for A3Q2 and A3AlQl. When the

ac line cord

is

plugged in and the POWER switch

is

set to the off position, a 400-mA charging current

is

passed through A3AlR5 and A3AlCR2 to the
battery. When the battery
tion,

it

tends to draw

is

in a discharged condi-

too

much current from the

4-14

Model 1707B

Theory

power supply. This could damage both the power
supply and the battery. When this happens, the-volt­age drop across A3AlR5 will cause A3AlVR2 to
fire and rob current from the base of A3AlQl. This
reduces the current

to

the base of A3Q2 and lowers
the output voltage and the battery charging current.
The POWER MODE switch S2 selects the output
from the ac power supply, the DC LINE 52, or the
battery BTl. Fuse

F1

remains

in

the circuit in all

three power modes.

operational amplifier A3A2U1. The output of A3A2Ul

drives the inputs
Q3/A3A2Q4 whose current

tertiary winding of A3A2T1. In

of

complementary amplifier A3A2-

path

is

through tkle

this

manner, a change
in the output of the +15-volt supply causes a change
in the current through the tertiary winding. The
change will be in such a direction
original change in the output

4-172.

Schematic

21.

When the flyback voltage

as

to

correct the

of

the power supply.

is

induced into the secondaries of A3A3T1, the voltage

is

i-168.

Schclmatic

20.

This schematic shows the

low

voltage converter protection circuits, the low voltage
converter assembly, and the low voltage regulator.
The protection circuit protects the instrument in case
of regulator failure, inadvertant application of more
than

40

volts on the dc line, inadvertant reversal of

the dc line polarity, or overvoltage (>15V) from the

low voltage converter. The low voltage converter
assembly, regulated by the low voltage regulator,

converts the dc input

to

operate the low voltage transformer (schematic 21).

4-169.

If a dc voltage is inadvertently connected with

to

a

regulated, pulsating dc

the wrong polarity, A3AlCR3 conducts, causing the

line fuse
over
causing A3AlSCR1

40

(F1

on schematic 19) to open. If a dc voltage

volts

is

connected, A3AlVR3 conducts,

to

conduct and the line fuse

opens. If the regulated +15-volt supply (schematic 21)

\

I

goes above approximately
conducts. The RC time constant of A3AlR19 and

20

volts, thyristor A3AlCR5

A3AlC2 causes a delay in the conduction of A3A1-

CR5

to prevent

When A3AlCR5 conducts,

A3AlT1 into the gate of A3AlSCR1 causing

it

from being turned on by transients.

it

induces a pulse through

it

to

conduct and open the line fuse.

4-170. When the instrument is first turned on,

A3A2Ql and A3A2Q2 are both turned off. Current
through A3A2R2 and A3A2VR2 establishes the
operating potentials for A3A2Q1. Capacitor A3A2C7
starts charging through A3A2R6. When the voltage
across A3A2C7 reaches the peak-point emitter voltage
of unijunction transistor A3A2Q1, the transistor turns
on, causing A3A2Q2 to turn on. When A3A2Q2 turns
on, A3A2Q1 turns off and does not turn on again,
unless the instrument

is

turned off, because A3A2CR5

keeps A3A2C7 discharged below the peak-point

emitter voltage of A3A2Q1.

rectified and filtered by the diodes, inductors and
capacitors on low voltage rectifier and filter assembly
A3A3. The outputs are connected to low voltage

mother board A3A1

where further filtering takes
place. The low voltage power supply control voltages
and the high voltage power supply operating voltages
are cohnected

to

circuits on schematics 20 and

18

respectively. The remainder of the outputs are con-

nected

to

components on gate assembly A4 where
fusing, further filtering and distribution are accom­plished.

4-173.

HIGH VOLTAGE

POWER

SUPPLY.

4-174. The high voltage power supply (schematic

18) generates the high voltage operating potentials

for the CRT. When the instrument

is

turned on,

A3Q1 starts to conduct through the primary winding
(pins 1 and 2) of high voltage transformer A3A4AlTl.
Positive feedback to the base of A3Q1 occurs from
the tertiary winding (pins 3 and
and the circuit oscillates

4)

of the transformer

at a rate determined by the

distributed inductance and capacitance of the circuit.

The magnitude of the oscillations, and consequently
the output of the power supply,

is

controlled by the
voltage on the collector of A3A4Q3. A sample of the
+15-volt power supply (through A3A4R1 and A3A4R2)
establishes

reference

at

the base of A3A4Q1. A

a

sample of the -2150-volt output of the power supply

is

fed back to the base of A3A4Q1 and compared with

the reference voltage. Any difference

is

amplified

and inverted by Darlington amplifier A3A4QUA3A4­Q2. The output of the Darlington pair drives the base
of A3A4Q3, causing its collector voltage to change.

This change is reflected through the tertiary winding
of the transformer

to

the base of A3Q1 and causes

the amplitude of its oscillations to change. The change

is

in such a direction

as

to correct the original change

in the output voltage of the power supply.

4-171. The low voltage converter

is

regulated by

varying the amplitude of a dc current in the tertiary

winding (pins 5 and
permeance of the core and, in

6)

of A3A2T1. This varies the

turn,

varies the duty

cycle of the converter, thus controlling the output

voltage. The -15-volt power supply output (schematic

21) is applied to A3A2Rl and A3A2VR1 (schematic

20)

to establish a reference voltage. A sample of the
output of the +15-volt supply (through A3A2R3 and
A3A2R4) is compared with the reference voltage.
Any difference voltage is amplified and inverted by

4-175. The output of the gate assembly (schematic

17)

is

connected between the positive side of the

-2220-volt output and ground. Any variation in the
gate voltage, varies the total voltage on the intensity
control grid of the CRT and controls the brightness
(or blanking) of the CRT.

4-176. High voltage multiplier A3A4A2 quadruples
the output fiom pin 8 of the high voltage transformer
and supplies a potential of 20 kilovolts for the post-

accelerator of the CRT.

4-15

Performance Check

Table

5-1.

Recommended Test Equipment

Model 1707B

Type

Voltmeter

Calibrator

Oscillator

Time-mark
Generator
Square-wave

Generator

Multifunction

Digital Voltmete

Constant-amplitud

Signal Generato:

LC Meter

50-ohm Feed-

through
Termination

RG 213 Cable

trument

Model

HP

Model HOl-

H01-738BR

HP Model 204C

HP Model 226

HP Model 211B

HP Model 34740A
with 34702A

HP Model 4640A
OPT 001

HP Model 4332A

HP Model 10lOOC

RG 213

Required

Characteristics

Voltage: 5 mV to 150V

Accuracy: to 0.1%

Frequency: 100 kHz
Voltage output

Time Marks:

Frequency: 100 kHz;

15

mV

50

ns to 2 sec

<5

ns

Voltage Range: lOOOV

Accuracy: *O.l%
Resistance Range: 10 megohms
Accuracy:

Frequency:
Voltage Output:

Range: 30

Resistance:

+O.l%

50

kHz to

pF

50

ohms

75

MHz

50

mV to 5V p-p

50-ohm Cable

Required for

(See Note)

P,

A

BNC Cable

(two required)

BNC Cable

(two required)

Banana Jack to

BNC Adapter
Adapter

Adapter
BNC Tee

(two required)
Test Leads

1O:l

Divider

RF Millivoltmete
100O:l Divider

Monitor

Oscilloscope

Screwdriver

Service Kit

HP Model 10501A
Cable Assembly

HP Model 10502.4

HP Model lOllOA

HP Model

lOlllA

HP Model 10219A
HP

Part

No.

1250-0781
HP Model 11002A

HP Model 10006E
HP Model 3406A

HP Model

K05-3440A

HP Models HOC,

1808A and 1820C

HP

Part

No.

8710-0900

HP

Part

No.

01701-68701

BNC 44 in.

BNC 9 in.

Banana Jack to BNC

BNC to Binding Post

UHF to BNC Female Adapter
BNC Connectors

Test Leads

Divide Ratio: 10:1 Accuracy:
Range: 100 mV

Divide Ratio:

1OOO:l

Accuracy: *3[%
Bandwidth:

50

MHz

Pozidrive

Extender Boards and
Board Puller

+3[%

5-0

Note:

P

=

Performance Check, A = Adjustment Procedure,

T

=

Troubleshooting

Model 1707B

Performance Check

SECTION

PERFORMANCE CHECK AND ADJUSTMENTS

5-1.

5-2.

cedure gives troubleshooting suggestions in case the
table (performance check record)

end of the performance check for recording the meas­urements obtained in the first running of the pro­cedures. The record may be used to compare meas­urements taken
procedures for making all internal adjustments are

covered in paragraphs

graph showing the locations of all internal adjustment

controls

5-3.

5-4.

section

lent to that recommended may be substituted, provid­ed it meets the required characteristics listed in the
table. For best results, use recently calibrated test
equipment.

5-5.

INTRODUCTION.

This section contains step-by-step procedures
for checking the instrument specifications
table

1-1

of this manual. The performance check pro-

instrument fails to meet any specification tested.

is

at

later dates with the original. The

5-138

through 5-234. A photo-

is

presented in figure 5-19.

as

given in

provided at the

TEST EQUIPMENT.

Test equipment required for procedures in this

is

listed in table

5-1.

Test equipment equiva-

PERFORMANCE CHECK.

A

V

Begin each test or adjustment with the controls set
to these positions. If a control
position,
completion of each performance check or adjustment
procedure, the controls should- be set back to the
original front panel setting. Set controls

it

will be listed in the procedures. After the

VOLTS/DIV
coupling
verniers
POSITION
DISPLAY..
trig

............................

B POLARITY..
HORIZONTAL POSITION.

AUTO/NORM
AUTO/TRIG

main INT/EXT
delayed INT/EXT..

main slope..
main TRIGGER LEVE

(A

and

(A

and B).

(A

and

B)

(A

and

................................

.......................

....

............

............

..........

is

to be set to another

as

follows:

B)

.................

.....................

.01

AC

.................... CAL

B)

...........

as

required

A

.NORM TRIG

NORM

.......

...........

......................

as

required

..........

AUTO

.... AUTO

OFF

INT

............

j

5-6.

The following subparagraphs describe pro­cedures to determine whether or not the
instrument
table
inspection,

calibration after repairs or adjustments have been
made. Any one of the following checks can be made
separately if desired.

5-7.
enter the results on the performance check record
at the end
the manual and file
to include the instrument serial number on the record
for identification.

5-8.

5-9.

ments outlined in Section I11 before proceeding with
the performance checks or adjustment procedures.

5-1

0.

5-11.

in each performance test and adjustment procedure.

is

operating within the specifications of

1-1.

This can be used

as

a

periodic operational test, or to check

The first time the performance check

of

the procedure. Remove the record from

it

as

part of an incoming

is

made,

for future reference. Be sure

FRONT-PANEL ADJUSTMENTS.

Set the instrument up and perform initial adjust-

FRONT-PAN EL SETTl N

The control settings listed below are to be used

GS.

delayed TRIGGER LEVEL.

DELAY TIME

5-12.

5-13.

5-14.

div to 5 V/div (9 ranges) in
curacy:
continuously variable between all ranges, extends
maximum deflection factor to
VERNIER UNCAL light indicates when vernier
in CAL position.

5-15.

ed by applying
to the input. The displayed signal
against the voltage standard.

PERFORMANCE TESTS.

DEFLECTION FACTOR.

Specification.

*3%1

with vernier in GAL position. Vernier:

Description.

The deflection factor

a

400-Hz,

....................

.......

Ranges: from

I,

2, 5 sequence. Ac-

at

voltage-calibrated signal

disengaged

IO

least 12.5 V/div.

is

compared

is

1.00

mV/

is

not

check-

5-

1

Performance Check

5-1

6.

Equipment.

a.

voltmeter calibrator.

i.

Set DISPLAY to B.

j.

Repeat steps b through f for channel B.

banana jack to BNC adapter.

b.
c. BNC cable, 44 in.

5-1

7.

Procedure.

Connect instruments

a.

VOLTMETER
CALI BRATOR

-

U

Figure

b. Set Model 1707B main TIME/DIV to

c. Set voltmeter calibrator controls for 50-mV

p-p output signal. Display should be 5 vertical div

*3?6.

d.

in table 5-2.

e.

VOLTS/DIV for 5 div of vertical deflection.

f.
UNCAL light should be on. Vertical deflection should
be less than 2.4 div.

5-1.

Observe vertical deflection factors specified

Adjust voltmeter calibrator and channel A

Rotate channel A vernier fully ccw. VERNIER

BANANA JACF
TO BNC
ADAPTER

BNC

Deflection Factor Test Setup

as

shown in figure

7

CABLE

MODEL

17070

17078-A-1

.5

mSEC.

5-1.

k. Remove test equipment.

To return to initial settings, set Model 1707B

1.

controls

flection factor

5-18.

5-19.

direct or with Model 10006B Probe. Rise time is meas­ured
terminated 50-ohm source.

5-20.

time of less than 1 ns

of

is

This measurement

with Model 10006B Probe.

521.

5-22.

as

follows:

DISPLAY..
channel A and B VOLTS/DIV
main TIME/DIV..

verniers

m.

Refer to schematics 3 through 7 if any de-

RISE

TIME.

Specification.

from

10% to

Description.

the instrument. The rise time displayed on the CRT

then checked to see that it is less than 4.7 ns.

Equipment.

a.

square-wave generator.
b. 50-ohm feedthrough termination.
c. BNC cable.

Procedure.

a.

Connect instruments

..............................

(A

and B)

is

not within specifications.

90%

A

is

44

.................

......

.:.

............

Rise time

with 6-div input step from

100

is

applied to the vertical input

made direct, but may be made

in.

is

less than 4.7 ns;

kHz

signal with

as

shown in figure 5-2.

..........

5

uSEC

CAL

a

rise

.O1

A

a

Rotate channel A vernier control fully clock-

g.

wise into CAL detent.

Connect voltmeter calibrator output to chan-

h.

nel B INPUT.

Voltmeter Calibrator Settings

(Volts p-p)

0.05

0.1

0.3

0.5

1

3

5

10

30

b.

Set Model 1707B main TIME/DIV to

c. Set square-wave generator controls for 60-

mV,

100-kHz

VOLTS/DIV Settings Vertical Display (div)

.01

.02

.05 6 k0.18 div

.1
.2

.5

1

2

5

output signal.

5

k0.15 div

5

k0.15 div

5

kO.15

5
6 *0.18 div

5
5

6 k0.18 div

div

k0.15 div
k0.15 div

k0.15 div

.1

uSEC.

)

Model

1707K

Performance Check

1

SQUARE-WAVE

GENERATOR

I

I I

BNC CABLE

MODEL

I

1

CHAN

17078

I

FEEDTHROUGH
TERM IN AT ION

17078-A-2

Figure 5-2. Rise Time Test Setup

d. Adjust HORIZONTAL POSITION control

rise time portion of signal

Set

SWP

e.

Measure pulse rise time between 10% and

f.

MAG to X10.

is

in center of CRT.

so

90%

points (dotted lines on CRT). Rise time should be less
than 4.7 ns.

g.

Connect square-wave generator output to

channel B INPUT.

h. Set DISPLAY to B.

i.

Repeat steps b through f for channel B.

j.

Remove

To return to initial settings, set Model 1707B

k.

controls

as

DISPLAY..

main TIME/DIV..

SWP

1.

Refer to schematics 3 through

specification

test

follows:

MAG

is

not met.

equipment.

..............................

................ ~

..............................

7

if

5

rise time

A

uSEC

X1

CONSTANT- AMPLITUDE

SIGNAL GENERATOR

n

FEEDTHROUGH

RG

213

CABLE

TERMINATION

17070-A-3

Figure 5-3. Bandwidth Test Setup

5-26. Equipment.

a.

constant-amplitude signal generator.

b.

RG 213 cable.

c. 50-ohm feedthrough termination.

5-27. Procedure.

Connect instruments

a.

Set constant-amplitude signal generator con-

b.

as

shown in figure

5-3.

trols for 60-mV, 50-kHz output signal.

c. Adjust main TRIGGER LEVEL for stable dis-

play.

d. Adjust constant-amplitude signal generator

voltage vernier for 6-div vertical display.

Set constant-amplitude signal generator con-

e.
trols for frequency output of 75 MHz. Vertical dis­play of CRT should be equal to or greater than

4.3 div.

5-23.

5-24. Specification.

BANDWIDTH.

(Direct or with Model 10006B
Probe, 3-dB down from 5O-kHz, 6-div reference signal
from a terminated 50-ohm source). Dc coupled: dc to
75 MHz, ac coupled: 10 Hz to 75 MHz.

5-25. Description.

amplitude signal generator

To check bandwidth, a constant-

is

used to apply a 6-div,

50-kHz signal to the Model 1707B input. The constant-

amplitude signal generator frequency
75

MHz.

The signal amplitude displayed on the CRT
must always be equal to or greater than
meet bandwidth specifications. This measurement

is

increased to

4.3

div to

is

made direct, but may be made with Model 10006B

Probe.

f. Connect constant-amplitude signal generator

to channel B.

g.

Set DISPLAY to B.

h. Repeat steps b through e for channel

i.

Remove test equipment.
To return to initial settings, set DISPLAY to

j.

Refer to schematics 3 through 7 if either chan-

k.

nel does not meet bandwidth specification.

5-28.

A + B

MODE.

5-29.

Specification.

of

VOLTS/DIV switch indication with the addition

channel A and

Vertical deflection within *3%

B.

B.

A.

of

5-3

Performance Check

Model 170%

5-30.

Description.

ed signal is checked by applying a signal to both
channel A and B. The displayed signal should be the
algebraic sum of channel A and B. Proper operation
of channel B POLARITY switch is

5-31.

Equipment.

a. Oscillator.
b. BNC cable,
c. BNC TEE connector.

5-32.

Procedure.

a. Connect instruments as shown in figure 5-4.

OSCILLATOR

The deflection factor of the add-

also verified.

44

in. (2 required).

MODEL

I

1707

B

k. Refer to schematics 3 through 7 if instrument

does not meet specification.

5-33.

ALT

MODE.

5-34.

Specification.

nel A and channel B at all sweep rates.

5-35.

Description.

A

and channel B. The display should alternate be­tween channel A and channel B on successive
sweeps.

5-36.

Equipment.

a. Oscillator.
b. BNC cable.
c. BNC tee.

5-37.

Procedure.

a. Connect instruments
b. Set oscillator for

Trace alternates between chan-

Signals are applied to channel

as

shown in figure

.5

volts output

at

5-4.

100 kHz.

RI

44

in.

BNC

CABLE

Figure

b. Set oscillator for
c. Set main TIME/DIV to
d. Set DISPLAY to A + B.
e. Set channel A and B VOLTS/DIV switches to

0.1.
f. CRT display should be 2 divisions.

g. Set B POLARITY to INVT.
h. CRT display should be straight line.

i. Remove test equipment.

5-4.

A + B Mode Test Setup

100

mV output

.5

mSEC.

at

17076-L-001

1

kHz.

c. Set both channel A and B VOLTWDIV

switches to

d. Set DISPLAY switch to ALT
e. Position traces about 2 divisions apart.
f.

range.

g. Display should alternate between traces
positions of TIME/DIV switch. At faster sweep rates,
alternation will appear

h. Remove test equipment.

i. To return to initial settings set Model 1707B
controls as follows:

j.

mode does not meet specifications.

5-38.

.5.

Rotate TIME/DIV switch throughout its

at

all

as

two traces on screen.

DISPLAY..
TIME/DIV
VOLTS/DIV (A and B)

Refer to schematics 3 through 7 if ALT

CHOP

............................

........................

MODE.

5

...............

usec

.01

A

j.

controls

5-4

To return to initial settings, set Model 1707B

as

follows:

DISPLAY..
VOLTS/DIV (A and B)

B POLARITY..
MAIN TIME/DIV

............................

...............

...................

...............

NORM

5

A

.01

uSEC

5-39.

Specifications.

tween channels at approx
switching.

5-40.

Description.

and channel B in CHOP mode. Check for proper
blanking.

Electronically switched be-

400

kHz. Blanking during

Signals applied to channel A

,

1

Model 1707B

Performance Check

j

5-41. Equipment.

a. Oscillator.
b. BNC cable.
c. BNC tee.

5-42. Procedure.

a. Connect instruments

as

shown in figure

b. Set DISPLAY switch to CHOP.
c. Set TIME/DIV switch to

20

usec.

d. Set oscillator for approximately 5 kHz out-

put frequency

e. Set both VOLTS/DIV to

at

.5V p-p.

.5.

f. Adjust TRIGGER LEVEL control to produce

a

stable display.

g. At slower sweep speeds, display should con-

sist of two separate sine wave displays.

5-4.

5-47. Procedure.

a. Connect CAL 1 VOLT output to channel A

INPUT.

b. Set main TIME/DIV to 1 mSEC.
c. Set channel A VOLTS/DIV to

.5.
d. Set AUTO/NORM to NORM.
e. Adjust TRIGGER LEVEL to obtain stable

display.

f. Disconnect signal.

g. Set sweep mode to SINGLE.
h. Press RESET button.

i. RESET indicator illuminates and remains

illuminated until signal

j.

Reconnect signal to channel A INPUT.

is

reapplied.

k. A single, stable display should be presented

and RESET indicator should extinguish.

h. At faster sweep speeds, the two separate

displays will appear

)

i. Check to see that switching transients be-

as

dashed lines.

1.

Remove test equipment.

m. Refer to schematic 10 if specification is not

met.

tween segments are completely blanked.

n.

To

j.

Remove test equipment.

k.

To

return to initial settings, set Model 1707B

controls

as

follows:

DISPLAY..

TIME/DIV

............................

........................

VOLTS/DIV (A and B)

1. Refer. to schematic 3 through 7

5

...............

if

CHOP mode

A

usec

.01

controls

5-48.

5-49. Specification.

return to initial settings, set Model 1707B

as

follows:

SINGLE
AUTO/NORM
VOLTS/DIV (A)
main TIME/DIV..

AUTO

......................

....................

......................

...............

TRIG RECOVERY TIME.

disengaged

Stable display above

AUTO

5

uSEC

40

Hz.

.01

specifications are not met.

5-43.

SINGLE

SWEEP.

5-44. Specification.

is pressed.

Sweep locks out until RESET

5-50. Description.

er than

40

Hz is obtained, indicating that the time
base is synchronizing on triggers, then a trigger sig­nal of less than
time base is running at
on signal.

A time marker display of great-

40

Hz is applied, indicating that

40

Hz, and is not triggering

5-51. Equipment.

5-45. Description.

INPUT and instrument is set to single sweep opera­tion. Sweep is armed when RESET pushbutton is
pressed.

Signal is applied to channel A

a. Time-mark generator.
b. BNC cable

44

in.

5-52. Procedure.

1,

5-46. Equipment.

a. Connect time-mark generator to channel A

INPUT. a. None required.

5-5

Performance Check

Model 1707B

b. Set time-mark generator for 50-millisecond

markers.

c. Set channel A VOLTS/DIV switch to
d. Set TIME/DIV switch to 50 ms.
e. Adjust TRIGGER LEVEL to obtain stable

display.

f. Set time-mark generator for 500-millisecond

markers.

g. Sweep should free run and stable display

cannot be obtained.

h. Remove test equipment.
i. To return to initial settings, set Model 1707B

controls

as

follows:

VOLTS/DIV (A)
TIME/DIV

j.

Refer to schematic 10 if specification cannot

......................

........................

be met.

5-53.

2

AXIS SENSITIVITY.

2.

.01

5 usec

5-58.

BEAM FINDER.

5-59. Specification.

Intensity is increased and dis-

play returns to display area when BEAM FINDER

pressed.

5-60. Description.

BEAM FINDER pushbutton

Display is positioned off screen.

is

pressed to return dis-

play to viewing area.

5-61. Equipment.

a. None required.

5-62. Procedure.

a. Connect CAL 1 VOLT signal to channel A

INPUT.

b.

Set main TIME/DIV to

.2

mSEC.
c. Adjust TRIGGER LEVEL for stable display.
d. Set channel A VOLTS/DIV to 1.
e. Adjust channel A POSITION completely

ccw.

is

5-54. Specification.

Noticeable intensity modula-

tion with 4-volt signal.

5-55. Description.

A 4-volt signal is applied to

AXIS INPUT to blank trace.

5-56. Equipment.

a. Oscillator.
b. BNC cable.

5-57. Procedure.

a. Set oscillator for a 4-volt p-p output

proximately 1 kHz.

b. Connect oscillator to Z AXIS INPUT.
c. Set TIME/DIV to 1 mSEC.
d. CRT display should show noticeable inten-

sity modulation.

e. Remove test equipment.
f. Refer to schematic 19 if specification cannot

be met.

g. To return to initial settings, set Model 1707B

controls as follows:

at

Z

ap-

f. Press BEAM FINDER and observe that dis-

play

is

intensified, reduced in size and returned to

viewing area.

g. While pressing BEAM FINDER adjust chan-

nel A POSITION to position display

at

center screen.

h. Release BEAM FINDER and observe that

display remains on screen.

i. Disconnect CAL 1 VOLT.

j.

controls

To return to initial settings, set Model 1707B

as

follows:

VOLTS/DIV (A)

......................

.01

k. Refer to schematics 6, 16 and 17 if this speci-

fication cannot be met.

5-63.

COUPLING SWITCH.

5-64. Specification.

Correct signal coupling in

each switch position.

5-65. Description.

Correct coupling switch appli­cation is checked by applying a signal to channels A
and B and verify switch position agrees with display.

5-66. Equipment.

5-6

main TIME/DIV..

...............

5

uSEC

a. None required.

Model 1707B

Performance Check

5-67. Procedure.

5-70. Description.

ured with an ohmmeter

'\

a. Connect channel A INPUT to CAL 1 VOLT

output.

b. Set main TIME/DIV to .5 mSEC.
c. Set channel A VOLTS/DIV to .5.
d. Set channel A coupling switch to DC.
e. Position bottom of display on center grati-

cule line.

f.

Set channel A coupling switch to AC.

g. CRT display should be centered about center

graticule line.

5-71. Equipment.

a. multifunction digital voltmeter.
b. BNC cable,

banana jack to BNC adapter.

c.

5-72. Procedure.

a. Connect instruments

MULTIFUNCTION

,DIGITAL VOLTMETER,

h. Set channel A coupling switch to GND.

i.

CRT display should be a straight line near

The input resistance is meas-

to

verify resistance.

44

in.

as

shown in figure 5-5.

I

WAN

A

center graticule.

j.

Set display switch to B and select B TRIG.

JACK

BANANA

k. Connect CAL 1 VOLT output to channel B

INPUT.

TO BNC ADAPTER

17078-A-4

1. Set channel B VOLTS/DIV to .5.

i

m. Center display around center graticule line.

to DC.

n. Set channel B coupling switch to DC.

Figure 5-5. Input Resistance Test Setup

b.

Set Model 1707B channel A and B coupling

Set multifunction digital voltmeter controls to

c.

measure 10 megohms.

0.

Bottom of CRT display should be on center

graticule line.

p. Set channel B coupling switch to GND.

Use a range on the digital voltmeter

NOTE

having an output voltage less than 0.6V.

q. CRT display should be a straight line near

center graticule.

r. Disconnect CAL 1 VOLT input.

s.

To

return to initial settings, set Model 1707B

controls

as

follows:

DISPLAY..

COUPLING

............................

(A

and B)

VOLTWDIV (A and B)

triggering..

......................

................

...............

A

A

AC

.01

TRIG

If more than 0.6V is applied, erroneous
input resistance readings may result.

d. Connect BNC cable to channel A INPUT.
Multifunction digital voltmeter should indicate
megohm

*2%.

Check all channel A VOLTS/DIV ranges.

e.

f. Move BNC cable from channel A to channel

B. Multifunction digital voltmeter should indicate

1

megohm

*2%.

1

g. Check all channel B VOLTS/DIV ranges.

t.

Refer to schematic 3 through 7 if specification

is not met.

h. Remove test equipment.

5-68.

INPUT

/

5-69. Specification.

shunted by approximately

RESISTANCE.

The input

24

pF.

is

1

megohm

*2%

i. To return

controls as follows:

channel A and B VOLTS/DIV

channel A and B coupling..

to

initial settings, set Model 1707B

..........

.............

.01

AC

5-7

Performance Check Model

1707W

Refer to schematic 3 if input resistance spec-

j.

ification

5-73.

5-74. Specification. Frequency: dc to

CMRR:

20

rejection.

5-75. Description.This measurement

applying identical signals to channel A and channel B

and operating in the A+B (B POLARITY INVT) mode.
The signal display on the CRT will be the common
mode signal.

5-76. Equipment.

ONSTANT- AMPLITUDE

,

SIGNAL GENERATOR,

5-77. Procedure.

is

not met.

COMMON MODE REJECTION RATIO

at

least

40

dB on

dB on all other ranges with verniers set for optimum

a.

constant-amplitude signal generator.
b. BNC cable, 9 in.
c. BNC tee.
d. RG 213 cable.

e. 50-ohm feedthrough termination.

Figure

5-6.

10

mV/div range,

CHAN CHAN

CHAN CHAN

BNC CABLE

BNC CABLE

BNC TEE BNC CABLE

BNC TEE BNC CABLE

RG

213 CABLE 50-OHM

RG

213 CABLE 50-OHM

CMRR

Test

Setup

(CMRR).

1

MHz.

at

least

is

made by

FEEDTHROUGH

FEEDTHROUGH

I

NATION

TERM

17076-A-5

g. Increase constant-amplitude signal generator
frequency to 1 MHz. Display should be less than 0.3
div.

h.

For all other vertical sensitivity ranges
(VOLTS/DIV), 30 div of signal
channel A and B INPUT will result in deflection
factor equal to or less than 3 div.
factor
adjusted for maximum CMRR.

controls

specification

5-78. MAIN

5-79. Specification. Range: from

2

is +3'% with VERNIER in CAL position. VERNIER:
continuously variable between all ranges; extends
slowest sweep
light indicates when VERNIERis not in CAL position.
Magnifier: expands all sweeps by a factor of
extends the fastest sweep speed to
curacy

5-80. Description. The instrument time base
compared against a time-mark generator to verify

specifications.

5-81.

is

with channel A and channel B vernier

i. Remove test equipment.

j.

To return to initial settings, set Model 1707B

as

follows:

DISPLAY.

B POLARITY..

channel A and channel B VOLTS/DIV..

channel A and B verniers

k.

Refer to schematics 3 through 7 if CMRR

sec/div

(23

is

*5%,

Equipment.

a.

time-mark generator.

b.

BNC cable,

...............................

.....................

is

not met.

SWEEP

TIME.

ranges) in

to

at least 5 sec/div. VERNIER UNCAL

includes

44

1,

*3:'

in.

at 1 MHz applied

This

deflection

.............

0.1

usec/div to

2, 5 sequence. Accuracy

10

ns/div. Ac-

accnracjr

of

the

to

A

NORM

.01

CAL

10

and

base.

is

a.

Connect instruments

b. Set Model 1707B channel A VOLTS/DIV to

Set constant-amplitude signal generator con-

c.
trols for 50-kHz, 0.3V p-p signal
1707B CRT.

d. Set DISPLAY switch to A+B.
e. Set channel A and B VOLTS/DIV to

f. Set B POLARITY switch to INVT. Display

should be less than 0.3 div.

5-8

as

shown in figure

as

viewed on Model

5-5.

.05.

.01.

TIME-MARK

GENERATOR MODEL 17078

-

%L!ik--

BNC CABLE

m

I

Figure 5-7. Main Sweep Time Test Setup

17076-A-6

Model 1707H

Performance Check

1

5-82.

Procedure.

a. Connect instruments
b. Set Model 1707B controls

channel A VOLTS/DIV..

as

shown

as

follows:

.....

in

figure 5-7.

approx 5 div

of deflection

main TIME/DIV.

Set time-mark generator controls for 0.1-usec

c.

................

.1

uSEC

time-mark output.

Adjust HORIZONTAL POSITION control

d.

so

first marker is aligned with first, left-hand vertical
graticule. Eleven markers should be present on CRT.

table

Check rest

e.

5-3.

Set main TIME/DIV switch to I uSEC.

f.

Set time-mark generator for 5-usec time-mark

g.

of

main TIME/DIV settings using

output.

Adjust HORIZONTAL POSITION control

h.

so

three time marks appear on CRT.

i. Rotate main VERNIERfully counterclockwise.
VERNIER UNCAL light should be on. Time period
between time marks should be less than 2 div.

j.

Return main VERNIER to CAL position.

Set time-mark generator for 1-usec time-mark

k.
output. Eleven time marks should appear on CRT.

1. Set

SWP

MAG to

XlO.

m. Adjust HORIZONTAL POSITION control until

two time marks appear. Time marks should be

apart

*0.5

div.

10

div

n. Remove test equipment.

0.

To return to initial settings, set Model 1707B

controls as follows:

channel A VOLTS/DIV
main TIME/DIV..

SWP

MAG

..............................

...............

....

.:.

..........

5

uSEC

.01

XI

p. Refer to following paragraphs and sche-

matics if any of these tests fail:

(1).

Sweep ranges: paragraph 5-185 and

schematic

11.

(2).

VERNIER check: schematic 11.

(3).

SWP

MAG

(XlO)

check: paragraph

5-195, schematic 16.

5-83.

to
Accuracy:

DELAYED SWEEP TIME.

5-84.

Specification.

0.2

sec/div

(20

*3(%

with VERNIER in CAL position.

Ranges: from 0.1 usec/div

ranges) in

a

1,

2, 5 sequence.

VERNIER continuously variable between all ranges;
extends slowest sweep speed to at, least

0.5

sec/div.
VERNIER UNCAL light indicates when VERNIERis
not in CAL position.

Time-mark Generator

0.1 usec

0.2

usec

0.5

usec

1

usec

2

usec

5

usec

10 usec

20

usec

50

usec

0.1 ms

0.2

ms

0.5

ms

1

ms

2

ms

5

ms

10

ms

20

ms

50

ms

0.1 sec

0.2

sec

0.5

sec

1

sec

2

sec

Table

5-3.

Main Sweep Performance Check

Main TIMWDIV

.1 uSEC

.2

uSEC

.5

uSEC

1

uSEC

2

uSEC

5 uSEC

10 uSEC

20

uSEC

50

uSEC

.1 mSEC

.2

mSEC

.5

mSEC

1

mSEC

2

mSEC

5

mSEC

10 mSEC

20

mSEC

50

mSEC

.I

SEC

.2

SEC

.5

SEC

1

SEC

2

SEC

Time

I1 in

Marks

10

div

'l'o

kO.3

Check

div

5-9

Performance Check

Model 17078

NOTE

TIME-MARK
GENERATOR

PI

Figure

5-85. Description.

pared against a time-mark generator to verify spec­ifications.

5-86.

a.

b. BNC cable,

5-87. Procedure.

a.

5-8.

Delayed Sweep Time Test Setup

The delayed time base

Equipment.

time-mark generator.

44

in.

Connect instruments

as

MODEL

TI

A

n

shown

in

17078

17078-A-6

is

figure

com-

5-8.

Sweep length decreases
VERNIER

Return delayed VERNIER to CAL position.

j.

k. Remove all

1.

To return to initial settings, set Model 1707B

controls

if any tests fail.

5-88.

5-89. Specification.

5-90.

checked against a calibrated standard to verify
accuracy.

as

follows:

channel A VOLTS/DIV
delayed TIME/DIV
sweep display..

main TIMEIDIV..

m. Refer to paragraph 5-190 and schematic

DELAY TIME ACCURACY.

Description.

is

turned counterclockwise.

test

equipment.

.............

.................

Accuracy: *l%.
The delay time accuracy

as

delayed

. .:.

............

...................

MAIN SWEEP

5

.01

OFF

uSEC

13

is

b. Set Model 1707B controls

channel A VOLTS/DIV..
delayed TIME/DIV

sweep display..
main TIME/DIV..

Set time-mark generator controls for 0.1-usec

c.

time-mark output.

d. Adjust HORIZONTAL POSITION controls so
first marker is aligned with first, left-hand vertical
graticule. Eleven markers should be present on screen.

e. Check rest of delayed TIME/DIV settings

using table
one step slower than delayed TIME/DIV.

f. Set delayed TIME/DIV switch to 1 mSEC.

g. Set time-mark generator for 5-ms time marks.
h. Adjust DELAY TIME until three time marks

appear on CRT.

i.

wise. VERNIER UNCAL light should be on. Time

period should be equal to or less than 2 div.

5-4.

Main TIME/DIV control should be

Rotate delayed VERNIER fully counterclock-

........

...............

as

follows:

approx 5 div

.....

of deflection

..............

DELAYED SWEEP

.1

.2

uSEC
uSEC

TIME-MARK
GENE RATOR

m

I

Figure 5-9. Delay Time Accuracy Test Setup

5-91. Equipment.

a.

time-mark generator.

b.

BNC

5-92. Procedure.

a.

Connect instruments

b.

Set Model 1707B controls

channel A VOLTS/DIV..

main TIME/DIV..
delayed TIME/DIV

cable,

I

BNC CABLE

44

in.

as

...............

...............

MODEL

m

I

CHAN

shown

as

follows:

.....

17078

I

17ll7R.A.C

in

figure 5-9.

approx 5 div

of deflection

1

mSEC

10 uSEC

5-10

Model 1707B

Performance Check

Set time-mark generator for

c.

1

output.

d. Adjust DELAY TIME to intensify second time

mark from left.

e. Set sweep display to DELAYED SWEEP.

f. Adjust DELAY TIME to center visible time
mark on center vertical graticule line. Note DELAY
TIME setting.

DELAY TIME

Set sweep display

g.

Adjust DELAY TIME

h.

mark from left.

i. Set sweep display to DELAYED SWEEP.

j. Adjust DELAY TIME to center visible time mark
on center vertical graticule line. Note DELAY TIME
setting.

DELAY TIME

Subtract setting in step f from step j. Dif-

k.

ference should be 8.00 9.08.

1.

Disconnect

m. To return to initial settings, set Model 1707B

controls

as

follows:

channel A VOLTS/DIV
sweep display..
main TIME/DIV..
delayed TIME/DIV

test

to

MAIN SWEEP.

to

equipment.

.............

.................

...................

1-ms

intensify 10th time

.................

MAIN SWEEP

Table

time-mark

n. Refer to paragraph 5-190 and schematics

and

14

5-93.

DELAY TIME LINEARITY.

5-94.

Specification.

TIME- MARK

GENERATOR

I

I

Figure 5-10. Delay Time Linearity Test Setup

5-95.

Description.

TIME dial is checked against a calibrated standard
to verify linearity.

5-96.

Equipment.

a. time-mark generator.
b. BNC cable,

.O1

5 uSEC

OFF

5-4.

Delayed Sweep Performance Check

5-97.

Procedure.

a. Connect instruments

if specification

Linearity: *0.2%.

The linearity of the DELAY

44

is

BNC

in.

not met.

CABLE

as

13

MODEL

17078

m

1707B-A-fi

shown in figure 5-10.

Time-mark Generator

0.1 usec

0.2 usec

0.5 usec

1

usec
2 usec
5 usec

10 usec
20 usec
50 usec

0.1 ms

0.2 ms

0.5 ms

1

ms

2

ms

5 ms
10 ms
20 ms
50 ms

0.1 sec

0.2 sec

Delayed TIME/DIV

.1 uSEC
.2 uSEC
.5 uSEC

1

uSEC

2 uSEC

5 uSEC

10 uSEC
20 uSEC
50 uSEC
.1 mSEC
.2 mSEC

.5

mSEC

1

mSEC

2

mSEC

5 mSEC

10 mSEC
20 mSEC
50 mSEC

.1 SEC
.2 SEC

Time Marks to Check

11

in 10 div

+0.3

div

5-1

1

Performance Check

Model 1707R

Set Model 1707B controls

b.

channel A VOLTWDIV..

sweep display.
main TIME/DIV..
DELAY TIME

DELAY TIME/DIV..

Set time-mark generator for 1-ms time-mark

c.

output.

Rotate DELAY TIME cw until first marker

d.
is centered on center graticule line. Note DELAY
TIME setting.

(A) DELAY TIME

Adjust DELAY TIME cw until fifth marker is

e.

centered on center vertical graticule line. Note

DELAY TIME setting.

(B) DELAY TIME

Adjust DELAY TIME cw until ninth marker

f.
is centered on center vertical graticule line. Note
DELAY TIME setting.

(C) DELAY TIME

Perform mathematics given below. Note result

g.

of

0.00

k0.02.

C-A

A

+(,)

.........

.......................

-B

2

as

follows:

.....

approx 5 div

of deflection

DELAYED SWEEP

..................

...........

=

0.00

k0.02

10

1

ms

0.00

uSEC

5-100. Description.

expanding the sweep by
ing the jitter.

The delay jitter

5-101. Equipment.

a.

time-mark generator.

b. BNC cable,

5-1

02.

Procedure.

a.

Connect instruments

Figure

Set Model 1707B controls

b.

channel A VOLTS/DIV..
main TIME/DIV..

delayed TIMWDIV

44

in.

5-11.

Delay Jitter Test Setup

is

20,000

and visually monitor-

as

shown in figure

as

follows:

.....

...............

..............

checked by

5-11.

17078-A-6

amrox

of

5

be flect ion

1

mSEC

.5

uSEC

div

1

'1

Where:

h. Disconnect

To return to initial settings, set Model 1707B

i.

controls

is not met.

5-98.

5-99.

than

as

channel A VOLTS/DIV..
sweep display..
delayed TIME/DIV
main TIME/DIV..
DELAY TIME

Refer to schematics 12 and

j.

DELAY

Specification.

.005'R.

follows:

JITTER.

A = step d setting

B

=

step e setting

C = step f setting

test

equipment.

Result:

-.02 t.02

...............

.............

MAIN SWEEP

...................

.................

5

.........................

13

if specification

Delay jitter should be less

.01

OFF

uSEC

0.00

c. Set time-mark generator controls for 1-ms

time-mark output.

Adjust DELAY TIME

d.

sweep is at

e.

f. Adjust DELAY TIME
Display jitter should be less than 1 div which is
less than .005%.

g. Remove
h. To return to initial settings, set Model 1707B

controls

i.

are not met.

11th

graticule line.

Set sweep display to DELAYED SWEEP.

test

equipment.

as

follows:

channel A VOLTS/DIV
main TIME/DIV..
delayed TIME/DIV
sweep display..
DELAY TIME

Refer to schematics

so

intensified portion of

so

display

is

centered.

...............

.................

...................

.............

MAIN SWEEP

.........................

12

and

13

if specifications

5

uSEC

.01

OFF

0.00

5-12

Model 1707B

Performance Check

5-103.

5-104. Specification.

causing 0.5 div

1

dc to

MAIN TRIGGERING.

Dc to 35 MHz on signals

of

vertical deflection, increasing to

div

at

75 MHz in all display modes except CHOP;

400

kHz in CHOP mode. External: dc to 35

MHz on signals 50 mV p-p or more, increasing to

100 mV p-p at 75 MHz.

5-105. Description.

The main triggering

is

checked

with known input signals to ensure proper triggering.

5-106. Equipment.

a. constant-amplitude signal generator.
b. RF millivoltmeter.
c. BNC tee (2).

BNC cable, 9 in (2).

d.
e. RG 213 cable.

f.

50-ohm feedthrough termination.

g. 10:1 divider probe.

play. If stable display is obtained, instrument

is

trig-

gering properly.

e. Without increasing amplitude set constant

amplitude signal generator for 75-MHz output.

Display should not trigger

f.

at

any setting of

TRIGGER LEVEL control.

g.

Disengage HF REJ.

Set constant-amplitude signal generator con-

h.

trols for 75-MHz, 1-div display output signal.

Adjust main TRIGGER LEVEL for stable dis-

i.

play. If stable display is obtained, instrument

is

trig-

gering properly.

Change trig to A ONLY TRIG and repeat steps

j.

b through i.

k.

Set main INT/EXT

1.

Set constant-amplitude signal generator con-

to

EXT.

trols for 75-MHz, 35-mV rms (100-mV p-p) signal

as read on RF millivoltmeter.

5-107. Procedure.

Connect instruments

a.

as

shown in -gure 5-12.

EXT

TRIG

A INPUT

Figure 5-12. Main Triggering Test Setup

b. Set Model 1707B controls

main TIME/DIV.

SWP

MAG..

channel A VOLTS/DIV

................

...........................

................

INPUT

as

follows:

.1 uSEC

X10

.I

m. Adjust mainTRIGGERLEVELfor stable dis­play. If stable display is obtained, instrument is
triggering properly.

n. Set constant-amplitude signal generator con-

trols for 35-MHz, 7.5-mV rms (50-mV p-p) signal
as read on RF millivoltmeter.

0.

Adjust main TRIGGER LEVEL for stable

dis-

play. If stable display is obtained, instrument is trig­gering properly.

Set main INT/EXT

p.

q.

Set

SWP

MAG

r.

Set DISPLAY

s.

Set main TIME/DIV control

Set constant-amplitude signal generator con-

t.

to

X1.

to

CHOP.

to

INT;

to

2 uSEC.

trols for 400-kh, 0.5-div display.

u. Adjust main TRIGGER LEVEL for stable

dis­play. Segmented display should be observed. This is
normal display.

Set constant-amplitude signal generator con-

c.

/J

trols for 35-MHz, 0.5-diddisplay.

Adjust main TRIGGER LEVEL for stable dis-

d.

-

v. Remove

w.

Connect 10:1 divider probe from channel

A INPUT to ac line voltage source.

test

equipment.

5-13

Performance Check

Model 1707B

Set Model 1707B controls

x.

main LF REJ
main HF REJ..
channel A VOLTS/DIV..
channel A vernier..
main TIME/DIV..

y.

Adjust main TRIGGER LEVEL to obtain
stable display.
ment is triggering properly.

To return

z.

controls as follows:

DISPLAY..
channel A VOLTS/DIV..
main TIME/DIV..
trig

..........................

Refer to paragraph 5-172 and schematics

1.

and 9 if any triggering specifications are not met.

5-108.

5-109.

causing

1.0 div at 75 MHz in all display modes except

CHOP; dc to
to 35 MHz on signals
to 100 mV p-p at 75 MHz.

DELAYED

Specification.

0.5

div

400

....................

..................

If

stable display is obtained, instru-

to

initial settings, set Model 1707B

..............................

TRIGGERING.

Dc

of

vertical deflection, increasing to

kHz in CHOP mode. External: dc

50

mV p-p or more, increasing

as

follows:

...............

..................

...............

.............

.................

.NORM TRIG

to

35

MHz

on signals

engaged
engaged

ccw

2

mSEC

A

.01

5

uSEC

I

CONSTANT-AMPLITUDE

5

I

Figure 5-13. Delayed Triggering Test Setup

Set constant-amplitude signal generator con-

c.

trols for 35-MHz, 0.5-div display output signal.

8

d. Adjust main TRIGGER LEVEL for stable dis-

play.

e. Set sweep display to DELAYED SWEEP.

f. Adjust delayed TRIGGER LEVEL for stable
display. If stable display is obtained, instrument is
triggering properly.

Set sweep display to MAIN SWEEP.

g.

1

17078-A-7

5-110.

checked with known input signals to ensure proper
triggering.

5-111.

5-112.

Description.

Equipment.

a.

constant-amplitude signal generator.

RF millivoltmeter.

b.

BNC tee

C.

BNC cable, 9 in.

d.

BNC cable,

e.

50-ohm feedthrough termination.

f.

Procedure.

Connect instruments as shown in figure

a.

Set Model 1707B controls

b.

channel A VOLTS/DIV
delayed TIME/DIV
main TIME/DIV..

SWP

MAG..

delayed AUTO/TRIG

The delayed triggering is

(2).

44

in.

................

..............

...............

...........................

................

as

5-13.

follows:

.1 uSEC

.2

uSEC

X10

TRIG

.1

Set constant-amplitude signal generator con-

h.
trols for 75-MHz, 1 div display output signal.

Adjust main TRIGGER LEVEL for stable

i.

display.

Set sweep display to DELAYED SWEEP.

j.

k. Adjust delayed TRIGGER LEVEL for stable
display. If stable display is obtained, instrument is
triggering properly.

1. Set delayed INT/EXT to EXT.
m. Set sweep display

n. Set constant-amplitude signal generator con­trols for 75-MHz, 35-mV rms (100-mV p-p) signal
as read on RF millivoltmeter.

0.

Adjust main TRIGGER LEVEL for stable dis-

play.

Set sweep display to DELAYED sweep.

p.

Adjust delayed TRIGGER LEVEL for stable

q.

display. If stable display is obtained, instrument
triggering properly.

to

RlAIN

SWEEP.

is

5-14

1

Model 1707B Performance Check

Set sweep display to MAIN SWEEP.

r.

Set constant-amplitude signal generator con-

s.

trols for 35-MHz, 17.5-mV rms (50-mV

p-p)

signal

VOLT MET
CALIBRATOR

E

R

as read on RF millivoltmeter.

Adjust main TRIGGER LEVEL for stable dis-

t.

play.

3

BNC ADAPTER

Set sweep display to DELAYED SWEEP.

u.

Adjust delayed TRIGGER LEVEL for stable

v.
display. If stable display
triggering properly.

is

obtained, instrument is

1707B-A-8

1

w. Remove test equipment.

To return to initial settings, set Model 1707B

x.

controls

as

follows:

delayed AUTO/TRIG
delayed INT/EXT..
sweep display..
channel A VOLTS/DIV
main TIME/DIV..
delayed TIME/DIV

SWP

MAG

..............................

Refer to schematics 8 and 9 if any triggering

y.

...............

....................

.............

.................

...................

MAIN SWEEP

...............

AUTO

INT

5

uSEC

OFF

.01

X1

specifications are not met.

5-113.

ITY.

5-114.

MAIN TRIGGER LEVEL RANGE AND POLAR-

Specification.

The trigger level should
adjust smoothly at any point on the vertical wave­form for both the negative and positive portions
of the signal. In EXT mode, stable triggering should
occur from -1.2V to +1.2V of trigger signal amplitude.

5-115.

Description.

The trigger level range and po­larity are checked against calibrated inputs to ensure
that the instrument triggers on both negative and
positive slopes of the input signal.

Figure

5-14.

Main Trigger Level Range and
Polarity Test Setup

put

Set Model 1707B controls

b.

channel A VOLTS/DIV
main TIME/DIV..
main

HF

REJ..

...................

Set voltmeter calibrator controls for 5V out-

c.

signal.

Rotate main TRIGGER LEVEL to both ex-

d.

as

follows:

................

..............

.5

.5

mSEC

.engaged

tremes. Triggering point should adjust smoothly
across positive slope of waveform displayed on CRT.

e. Set main slope to

Rotate main TRIGGER LEVEL

f.

(-).

to

both ex­tremes. Triggering point should adjust smoothly
across negative slope of waveform displayed on CRT.

Set main INT/EXT to EXT.

g.

h. Repeat steps a through f in EXT position.
Triggering in EXT for both positive and negative slope
should operate smoothly from -1.2V to +1.2V.

j

5-116.

a.
b.
C.
d.
e.

5-117.

a.

Equipment.

voltmeter calibrator.
BNC cable,

BNC cable, 9 in.

44

in.

(2).

BNC tee.

banana jack to BNC adapter.

Procedure.

Connect instruments

as

shown in figure 5-14.

i. Remove test equipment.

j. To return

controls

as

to

follows:

initial settings, set Model 1707B

channel A VOLTS/DIV
main TIME/DIV..
main INT/EXT
main slope..
main HF REJ..

k.

Refer

to

paragraph 5-167 and schematic 8 if

.................

........................

..............................

.................

any specifications are not met.

...............

5

uSEC

disengaged

.01

INT

+

5-15

Performance Check

Model 1707B

5-118.

POLARITY.

5-119. Specification.

should adjust smoothly
waveform for both the negative and positive portions
of the signal. In EXT mode, stable triggering should
adjust from -1.2V to +1.2V of trigger signal amplitude.

5-120. Description.

larity are checked against a calibrated input to
ensure that the instrument triggers on both the nega-

tive and positive slopes of the input signal.

5-121. Equipment.

5-122. Procedure.

DELAYED TRIGGER LEVEL RANGE AND

The delayed trigger level

at

any point on the vertical

The trigger level range and po-

a. voltmeter calibrator.

b.

BNC cable,

c. BNC tee.

banana jack to BNC adapter.

d.

BNC cable, 9 in.

e.

Connect instruments as shown in figure 5-15.

a.

VOLT MET E

CALIBRATOR

44

in.

(2).

R

MODEL

1707B

-

DE LAY ED

d. Rotate delayed TRIGGER LEVEL to both ex­tremes. Triggering point should adjust smoothly
across positive slope of waveform displayed on
CRT.

e. Set delayed slope to

f.

Rotate delayed TRIGGER LEVEL to both ex­tremes. Triggering point should adjust smoothly
across negative slope of waveform displayed on

CRT.

g.

Set delayed INT/EXT to EXT

h. Repeat steps a through f in EXT position.

Triggering in EXT for both positive and negative

slope should operate smoothly from -1.2V to +1.2V
of trigger signal amplitude.

i. Remove test equipment.

To return to initial settings, set Model 1707B

j.

controls as follows:

channel A VOLTS/DIV
delayed INT/EXT..
delayed slope
delayed TIME/DIV
main TIME/DIV..
sweep display..
delayed HF REJ

Refer to schematic 8 if any specifications

k.

are not met.

(-).

...............

..................

...........................

.................

...............

...........

..............

MAIN SWEEP

5 uSEC

disengaged

.01

INT

OFF

t

I I

BANANA JACK

BNC

TEE

Figure 5-15. Delayed Trigger Level Range and

Polarity Test Setup

Set Model 1707B controls

b.

sweep display.
channel A VOLTS/DIV
main TIME/DIV..

delayed HF REJ
delayed TIME/DIV

c. Set voltmeter calibrator controls for 0.5V

output signal.

.........

...................

as

DELAYED SWEEP

................

..............

.............

IN PUT

~BNC

ABLE LE

follows:

17076-A-10

.1

mSEC

engaged

.I

mSEC

.5

1

5-123.

5-124.

5-125. Description.

ing 50-Hz and 1-MHz signals to the EXT HORIZ IN­PUT and measuring the difference in trace deflection.

5-126. Equipment.

5-127. Procedure:

EXT HORIZONTAL BANDWIDTH.

Specification.

a. Constant-amplitude Signal Generator.
b. RG
c. 50-ohm Feedthrough Termination.

a.

b.

213

Set up instruments
Set Model
sweep display.

SWP

MAG..

SINGLE

Dc

to 1 MHz.

Bandwidth

Cable.

170%

controls

......

is

checked by apply-

as

shown in figure 5-16.

as

follows:

EXT HORIZ INPUT

.........................

.........................

engaged

X10

5-16

Model 1707B

Performance Check

CONSTANT-AMPLITUDE

SIGNAL GENERATOR

MODEL

1707B

Figure 516. Ext Horizontal Bandwidth Test Setup

Set constant-amplitude signal generator con-

c.

trols for lV, 50-kHz output signal.

d. Adjust constant-amplitude signal generator

output to obtain exactly

10

div of horizontal de-

flection.

e. Adjust constant-amplitude signal generator
frequency to obtain 1-MHz output signal. Horizontal
deflection shall be equal to or greater than 7.2 div.

f. Disconnect test equipment.

g.

To return to initial settings, set Model 1707B

controls as follows:

sweep display..

SWP

MAG

SINGLE.

h.

Refer to schematic

...........

MAIN SWEEP

............................

.....................

13

if specification

disengaged

is

X1

not

met.

5-128.

5-129. Specification.

MAG (XlO), 0.1 V/div. Accuracy:

EXT HORIZONTAL DEFLECTION FACTOR.

SWP

MAG

(Xl),

1

V/div;

55%.

SWP

5-130. Description. A voltmeter calibrator signal

(1V or 1OV at 400 Hz) is applied to the EXT HORIZ
INPUT and horizontal deflection is measured

to

vertical deflection factor.

5-131. Equipment.

a. Voltmeter Calibrator
b. BNC Cable,

44

in.

I

MODEL

r

0

EXT

HORIZ

INPUT

0

1707B

Figure 5-17. Ext Horizontal Deflection Factor Test Setup

c. Set voltmeter calibrator controls for 1OV

output signal.

d. In

flection should be 10 div

SWP

MAG

XI

position, horizontal de-

50.5

div.

e. Set voltmeter calibrator output for 1V.

f.

Set

SWP

MAG to X10. Horizontal deflection

should be 10 div

g.

Rotate rear panel ext horiz VERNIER out

t0.5

div.

of

CAL position fully cw. Horizontal deflection should
decrease

to

less than 1 div.
h. Return ext horiz VERNIER to CAL position.
i. Disconnect test equipment.

j. To return to initial settings, set Model 1707B

controls as follows:

sweep display..

SWP

SINGLE

k.

Refer

if

specification

5-133.

5-134.

CALIBRATOR.

Specification.

MAG

......................

to

paragraph 5215 and schematic

is

not met.

...........

MAIN SWEEP

............................

disengaged

Type: 1-kHz *lo% square wave.

XI

13

Voltage: 1V p-p *l%.

5-135. Description.

the Model

1707B.

The frequency

is

checked by

The calibrator amplitude is

checked by comparing the calibrator amplitude

against a known

0.1%,

1V p-p signal.

5-132. Procedure.

a.

Set instruments up

as

shown in figure 5-17.

b. Set Model 1707B controls as follows:

i

sweep display. EXT HORIZ INPUT

SINGLE

......

.........................

engaged

5-136. Equipment.

a. voltmeter calibrator.
b. banana jack to BNC adapter.
c. BNC cable,

44

in.

d. test lead.

5-17

Performance Check

VOLTMETER
CALIBRATOR MODEL

BANANA JACK

TO

BNC

ADAPTER

BNC

CABLE

I

-~

Figure 5-18. Calibrator Test Setup

5-137.

Procedure.

a.

Connect instruments

as

b. Set Model 1707B controls

17076

1

VOLT

CAL

17076-A-9

shown in figure

as

follows:

5-18.

1

Model 1707B

c. Set voltmeter calibrator controls for 1V p-p

output signal.

d. Adjust channel A VOLTS/DIV vernier

so

dis-

play is exactly 6 div of vertical amplitude.

e. Disconnect voltmeter calibrator.

f.

Connect CAL 1 VOLT output to channel A

INPUT. Display should be 6 div of vertical amplitude

k.06

div and 1 kHz *l(Mo.

g.

Remove test lead.

h. To return to initial settings, set Model 1707B

controls

as

follows:

chamel A coupling

...................

channel A VOLTS/DIV.
channel A vernier..
main TIME/DIV..

.................

...............

..............

5

AC

.01

CAL

uSEC

channel A VOLTS/DIV
channel A coupling
main TIME/DIV..

...................

..............

................

.2 mSEC

.1

DC

i. Refer to paragraph

test limits are incorrect.

5-155

and schematic 17 if

5-18

I

I

I

I

1

Model

I

I
I

I

I

'1

I

I
I

I

I

I

I
I

I
I
I
I
I
I

I
I
I

I

I

I

I

I
I

I

I

I

I
I

I

I

I

I
I

I

I

I

)I

I

I
I

I

I
I

I

I
I

I

I

I

I

I

I

I

I
I

I

I

I

I
I

I

I
I

I
I

I

I

I

I

I

I

I

)I

I

I

I
I

I

I

I

I

1707B

I

DEFLECTION FACTOR

.01

VOLTS/DIV

.02

VOLTS/DIV

.05 VOLTS/DIV

.I

VOLTS/DIV

.2

VOLTS/DIV

.5

VOLTS/DIV

1

VOLTS/DIV

2

VOLTS/DIV

5

VOLTS/DIV

Channel A Vernier
Channel B Vernier

RISE TIME

Channel A Rise time
Channel B Rise time

BANDWIDTH

Channel A Bandwidth
Channel B Bandwidth

A

+

B

MODE

ALT MODE

CHOP MODE

Slow sweep speed
Faster sweep speed

SINGLE SWEEP

No

signal

Signal applied

PERFORMANCE CHECK RECORD

MODEL

Instrument Serial Number Date

Check

1707B

Specification

5 div
5 div k0.15 div

6

div

5

div k0.15 div

5

div +0.15 div

6

div k0.18 div

5

div +0.15 div

5

div +.015 div

6

div

42.4

42.4

<4.7
<4.7

24.3

24.3

Straight line

Display alternates
between traces

Two displays
Dashed lines

RESET indicator

illuminates
RESET indicator

extinguished and
stable display

+0.15

+0.18

+0.18

div
div

ns
ns

div

div

div
div

div

Performance Check

Measured

Chan

A

Chan

B

518a

Performance Check

PERFORMANCE CHECK RECORD (Cont'd)

MODEL

1707B

Model1707B

1

I
I

I

I
I

I

I

I

I

5-18b

Check

AUTO TRIG RECOVERY TIME

50-millisecond markers
500-millisecond markers

Z-AXIS SENSITIVITY

BEAM FINDER

COUPLING SWITCH

AC

DC

GND

INPUT RESISTANCE

Channel A Resistance

.01

VOLTS/DIV

.02

VOLTSIDIV

.05

VOLTS/DIV

.1

VOLTS/DIV

.2

VOLTS/DIV

.5

VOLTSIDIV

1

VOLTS/DIV

2

VOLTS/DIV

5

VOLTSIDIV

Channel B Resistance

.01

VOLTS/DIV

.02

VOLTSIDIV

.05

VOLTS/DIV

.1

VOLTS/DIV

.2

VOLTS/DIV

.5

VOLTS/DIV

1

VOLTS/DIV

2

VOLTS/DIV

5

VOLTWDIV

Instrument Serial Number Date

Specification

Stable

display

-

Free run

display

-

Increased
modulation

Observed display
remains on
screen

Display
centered

Bottom of
display on
center line

-

Straight

line display

1

megohm

1

megohm

1

megohm

1

megohm

1

megohm

1

megohm

1

megohm

1

megohm

1

megohm

1

megohm

1

megohm

1

megohm

1

megohm

1

megohm

1

megohm

1

megohm

1

megohm

k.02

k.02

t.02

k.02
k.02

k.02

k0.2
k0.2

k.02

k.02

k.02

t.02
k.02
k.02

k.02

k.02
*.02

megohm
megohm
megohm
megohm
megohm
megohm
megohm
megohm

megohm
megohm
megohm
megohm
megohm
megohm
megohm
megohm
megohm

Measured

I
I
I

I
I
I
I
I
I

I

I

I

I

I

I

I

I
I

I

I

I

I

I

I

I
I

I

I

I

I
I

I

I
I
I

I
I

I
I

I
I

I
I

I

I

I

I
I

I
I
I

I

I

I
I

I
I

I

I

I

I

I

I

I

I
I I?

I

I
I

t

I

I

I

I

I

Model 1707B

Performance Check

I

I

1

I

I
I
I

I

I

I

I

I

I

I

I
I

I

I
I
I
I

I

I
I

I

I
I
I
I

I

I
I

I

I
I

I

)I

I
I

I

I

I

I
I

I

I

I

I
I

I

I
I

I

I

I

I

I

I

I
I

I

I

I
I
I
I
I
I

I

I

I

I

Jl

~I

I

I

I

I

I

I

I

I

COMMON MODE REJECTION RATIO (CMRR)

CMRR
CMRR

MAIN SWEEP TIME

.1

.2

.5

1
2
5

uSEC
uSEC

uSEC
uSEC
uSEC
uSEC

(50

(1

MHz/O.Ol voltddiv)

10 uSEC

20

uSEC

50

uSEC

.1

mSEC

.2

mSEC

.5

mSEC

1

mSEC

2

mSEC

5

mSEC

10 mSEC

20

mSEC

50

mSEC

.1 SEC

.2

SEC

.5

SEC

1

SEC

2

SEC

Main Vernier Check
Mag

(XlO)

Check

kHz/O.Ol

Check

PERFORMANCE CHECK RECORD(Cont'd)

Model

Instrument Serial Number Date

voltddiv)

1707B

<0.3

<0.3

11
11

11
11

11

11

11
11

11
11

11
11
11

11

11

11

11

11

11
11
11

11

11

<2

10 div

Specification

div
div

in 10 div
in

in 10 div

in 10 div
in 10 div

in 10 div
in
in 10 div
in 10 div
in 10 div
in 10 div
in 10 div
in 10 div
in 10 div
in 10 div
in 10 div
in 10 div
in 10 div
in 10 div
in 10 div
in 10 div
in 10 div
in 10 div

10

10

div

div

k0.3

k0.3

*0.3

k0.3

k0.3

*0.3

k0.3

k0.3

k0.3

k0.3

k0.3

k0.3

k0.3

*0.3

*0.3

k0.3

*0.3

k0.3

+0.3

k0.3

+0.3

k0.3

*0.3

div

k0.5

div

Measured

div
div
div
div
div
div
div
div
div
div
div
div
div
div
div
div
div
div
div
div
div
div
div

5-18~

Performance Check

DELAYED SWEEP TIME

.1 uSEC

.2

uSEC

.5

uSEC

1

uSEC

2

uSEC

5

uSEC

10 uSEC

20

uSEC

50

uSEC
.1 mSEC
.2

mSEC

.5

mSEC

1

mSEC

2

mSEC

5

mSEC

10 mSEC

20

mSEC

50

mSEC

.1

SEC

.2

SEC

Delayed Vernier Check

DELAY TIME ACCURACY

Difference

DELAY TIME LINEARITY

Result

DELAY JITTER

Delay Jitter

Check

PERFORMANCE CHECK RECORD (Cont'd)

Model

Instrument Serial Number Date

1707B

Specification

11

in 10 div

11

in 10 div

11

in 10 div

11

in 10 div

11

in 10 div

11

in 10 div

11

in 10 div

11

in 10 div

11

in 10 div

11

in 10 div

11

in 10 div

11

in

10

11

in 10 div

11

in 10 div

11

in 10 div

11

in 10 div

11

in

10

11

in 10 div

11

in 10 div

11

in 10 div

<2

div

8.00

k0.08

0

9.02

<1

div

div

div

k0.3

k0.3

k0.3

k0.3

k0.3

k0.3

k0.3

k0.3

+0.3

k0.3

k0.3

k0.3

k0.3

k0.3

k0.3

f0.3

k0.3

k0.3

k0.3

f0.3

div
div
div
div
div
div
div
div
div
div
div
div
div
div
div
div
div
div
div
div

Model 1707R

Measured

I

I

I

I

I

I

I
I

I

I)

I
I

I
I
I
I

I

I

I

I

I

I

I

I

I

I
I

I

I
I

I

I

I
I

I
I
I

I

I

I

I

I

I

I

I

I

I

I

I

I

I
I
I
I
I

I

I

I

I

I

I
I
I

I

I

I
I

I

I

I

I
I
I
I

I

I
I

I

I

I

I>

I
I

I
I
I

I

I
I
I

')

.I

,I

Model 1707B

1

I

I

I
I

I

I

I
I
I
I

I

I

I

1
I
I

I

I

1

I
I

I

I

I

I

I

I

I
I
1
1

I

I

I

I

I

I
I
I

I

I
I

I
I

I

I
I

I

I

I

I
I

1

I

I
I

I

I
1

I
I
I

I

I

I
I
I

I

I
I
I

I

1
I

I
I
I
I

I

I

I

I

1

I

I

I

PERFORMANCE CHECK RECORD (Cont'd)

Model

Instrument

Check

MAIN TRIGGERING

Internal Triggering

(35

MHz)
Internal Triggering (75 MHz)
External Triggering

External Triggering

Chop Triggering

DELAYED TRIGGERING

Internal Triggering
Internal Triggering

External Triggering
External Triggering

MAIN TRIGGER LEVEL RANGE AND POLARITY

Int Trigger Level
Int Trigger Level
Ext Trigger Level
Ext Trigger Level

DELAYED TRIGGER LEVEL RANGE AND POLARITY

Int Trigger Level
Int Trigger Level
Ext Trigger Level
Ext Trigger Level

~ ~~

EXT HORIZONTAL BANDWIDTH

EXT HORIZONTAL DEFLECTION FACTOR

CALIBRATOR

(400

(35
(75

(+)

(-)

(+)
(-)

(+)

(-)

(+)

(-)

(75

(35

kHz)

(75
(35

MHz)
MHz)

MHz)

MHz)

MHz)
MHz)

Amplitude
Frequency

Serial

Number Date

1707B

Specification

J

J

J

J
J

J
J

4

J

J

J

-1.2v

-1.2v to +1.2v

to

+1.2v

J
J

-1.2v

to +1.2v

-1.2v to +1.2v

~7.2 div

10 div

k0.5

div

6

div

+.06

div

1

kHz *lo(%

Performance Check

Measured

5-18e/(5-18f blank)

Model 1707B

Adjustments

>

5-1

38.

ADJUSTMENTS.

5-139. The following paragraphs describe procedures
to calibrate the instrument

as specified in table 1-1. The entire adjustment pro-

cedure can be done in sequence, or any separate

adjustment can be calibrated by following the steps
outlined in the appropriate paragraphs. The locations
of adjustment controls are shown in figure 5-19.

a

photograph included

a foldout page.
5-140. Use a nonmetallic screwdriver and recently

calibrated test equipment with characteristics
specified in table 5-1. After adjustments are complete,
check instrument performance by doing the per­formance check at the beginning of this section.

5-141.
positions given in paragraph 5-10.

Set Model 1707B front panel controls

so

at

the end of

that

it

will perform

this

section on

to

as

those

5-142. ADJUSTMENT PROCEDURES.

5-143. LOW VOLTAGE POWER SUPPLY ADJUST-

MENT.

5-144.

5-19.

Reference.

Schematics 19, 20, 21, and figure

b. Connect multifunction digital voltmeter to

TP +15V on A4 gate assembly.

c. Turn instrument pcwer
d. Adjust A3A2R3, LOW VOLTAGE ADJUST,

for meter indication of +15V *lOmV.

e. Check rest of low voltage power supply

output voltages as shown in table

f.

Turn instrument power off.

g. If any voltage measurement is inaccurate,

refer to schematics 19, 20, and 21.

5-148. HIGH VOLTAGE POWER SUPPLY ADJUST-

MENT.

5-149. Reference.

5-150. Description.

to -2150V by comparing
brated voltage standard.

5-151. Equipment.

Schematic

The high voltage

it

against

ON.

5-5.

18

and figure 5-19.

is

a

known,

adjusted

cali-

i

5-145. Description.

lated voltage in this instrument. The rest of the volt-

ages in this instrument are referenced to *15V. The
voltage accuracy is set by a multifunction digital
voltmeter to monitor the +15V.

5-146. Equipment.

a. multifunction digital voltmeter.
b. test lead.

5-147. Procedure.

a. Remove top and bottom covers.

Power is present in the Line Rectifier
Assembly (A2) and Low Voltage Mother

Board (A3A1) even when the POWER

switch is off.

The +15V

(

WARNING

is

the only regu-

I

a. multifunction digital voltmeter.
b. voltmeter calibrator.

c. 1OOO:l divider probe.

5-1 52. Procedure.

a. Turn instrument power off.
b. Remove A3 power supply module cover.
c. Turn instrument power
d. Connect multifunction digital voltmeter

through

cation.

1OOO:l

divider probe to voltmeter calibrator.
e. Set voltmeter calibrator to -100-volt output.
f. Note multifunction digital voltmeter indi-

ON.

)

+15V A4 WIRE (92) t14.99

-15V A4 WIRE (97) -14.5 V -15.75 V

+

5v

+50V A4 WIRE (2) +47

-5OV A4 WIRE (7) -47
t8OV A4 WIRE (926)

A4 WIRE (94)

+a0

V

6.1

V +5.9

v

v

v

t15.01 V

v

+52 V

-52 V
+go

v

5-19

Adjustments

Model 1707B

Multiply indication in step f by 21.5.

g.

h. Monitor high voltage on red wire (2) from
A3A4 using 1OOO:l divider probe and multifunction
digital voltmeter.

i. Adjust A3A4R1, HIGH VOLTAGE ADJUST,
for value calculated in step g.

j.

Turn instrument power off.

k.

Ilisconnect test equipment and replace A3

power supply module cover.

I.

Check

schematic

5-153. INTENSITY LIMIT ADJUSTMENT.

5-154. Reference.

5-155. Description.

ment is set
complete range. This range
complete brightness.

5-1 56. Procedure.

a.

high voltage power supply circuits on

18

if adjustment cannot be made.

Schematic

The intensity limit adjust-

so

the front-panel INTENSITY control has

Turn POWER switch ON.

18

and figure 519.

is

from extinguished to

NOTE

Make sure the horizontal trace
perly aligned before proceeding with
this adjustment.

5-161. Procedure.

a. Connect oscillator to channel A INPUT.
b. Set oscillator for 10-kHz, 6-div output.
c. Set sweep display to DELAYED SWEEP

(leave delayed TIME/DIV

d. Adjust HORIZONTAL POSITION until verti-

cal line

is

to MAIN SWEEP.

be made.

is

centered on CRT screen.

e. Adjust A4R35, orth adj, until vertical line

aligned on major Y-axis graticule.

f. Disconnect oscillator.

g.

To

return to initial settings, set sweep display

h. Refer to schematic 18 if adjustment cannot

OFF).

is

pro-

‘I

b. Set Model 170% main TIME/DIV to

mSEC.

c. Obtain free-running trace.

d. Set INTENSITY control to 9 o’clock position.
e. Adjust A3A4R15, INTENSITY LIMIT, until

trace

is

just extinguished.

f. Set INTENSITY control to 10 o’clock posi-

tion and verify trace

g. To return to initial settings, set main TIME/

DIV to 5 uSEC.

h. Check high voltage power supply circuit on

schematic 18 if adjustment cannot be made.

5-157. Y-AXIS ALIGNMENT.

5-158. Reference.

5-159. Description.

set to align the trace on the Y-axis.

is

visible.

Schematic 18 and figure 519.

The internal orth adjust

is

1

5-162.

5-163. Reference.
5-169. Description.

ed for optimum response.

5-165. Equipment.

5-1

oscilloscope to wire
bly.

GATE AMPLIFIER RESPONSE ADJUSTMENT.

Schematic 17 and figure 519.

The gate amplifier is adjust-

a.

monitor oscilloscope.

b. 1O:l divider probe.

66.

Procedure.

a. Set main TIME/DIV to 1 uSEC.

b. Connect 1O:l divider probe from monitor

(1)

on A4 gate amplifier assem-

c. Set monitor oscilloscope controls

coupling..
all others

............................

.................

as

follows:

normal display

’I

DC

5-160. Equipment.

a.

oscillator.

b. BNC cable, 44 in.

520

d. Adjust INTENSITY control for 2OV ampli-

tude pulse

e. Adjust A4C7, gate response adj, for fastest

rise time and flatest pulse of positive-going signal.

as

displayed on oscilloscope.

)

Model 1707B

Adjustments

1

f. Disconnect test equipment.

g. To return to initial settings, set main TIME/

DIV to 5 uSEC.

h. Refer to schematic 17 if adjustment cannot

be made.

5-167.

ADJUSTMENT.

5-168. Reference.

5-19.

5-169. Description.

channel A sync adj, are set
gers

5-1 70. Equipment.

5-1 71. Procedure.

TRIGGER AMPLIFIER BALANCE AND DC

Schematics 5 and 6, and figure

The composite sync adj, and

so

the instrument trig-

at

the same point on all signals.

a. oscillator.

b. BNC cable, 44 in.

5-172.

5-173. Reference.

5-19.

5-1 74. Description.

with a calibrated input to optimize triggering across
the entire specified frequency range.

5-1 75. Equipment.

5-1 76. Procedure.

INPUT.

TRIGGER SENSITIVITY.

Schematics 8 and

Trigger sensitivity is adjusted

a. oscillator.
b. BNC cable, 44 in.

a.

Set Model 170% controls

trig..

.....................

channel A VOLTWDIV.
main TIME/DIV.
main

HF

REJ..

delayed

AUTO/TRIG

b. Connect oscillator output to channel

HF

.............

..................

RE

J

.................

......................

9,

and figure

as

follows:

A ONLY TRIG

..............

.5

mSEC
engaged
engaged

TRIG

0.2

A

a.

Connect oscillator to channel A INPUT.

)

b. Set channel A VOLTS/DIV to
c. Set oscillator to
d. Adjust channel A POSITION to center dis-

play.

e. Adjust main TRIGGER LEVEL until sweep

triggers

sweep triggers

sweep triggers at same point

controls

at

center graticule.

f. Set main coupling to DC.

g. Adjust A5A4R81, composite sync adj, until

at

h. Set trig to A ONLY TRIG.
i. Adjust A5A4R66, chan A sync zero, until

j. Disconnect test equipment.

k.

To return to initial settings, set Model 1707B

as

follows:

50-kHz,

same point

6-div output.

as

as

.l.

in step e.

in step e.

c. Set oscillator controls for 500-Hz, 4-div dis-

play, output signal

d. Adjust main TRIGGER LEVEL and A6A2
R46, main trigger sens adj, until instrument triggers
on entire range
triggering.

There is a small allowable range of
rotation for A6A2R46 where step
satisfied. If optimum high frequency
trigger sensitivity is desired, rotate
A6A2R46 to the most counterclockwise
position within the allowable range.
If optimum low frequency trigger stabili­ty

is

desired, rotate A6A2R46 to the most

clockwise position within the allowable

range. The trigger sensitivity

factory for optimum high frequency trig­ger sensitivity (farthest counterclockwise
within the allowable range).

e. Recheck performance in accordance with

paragraph 5-103. Readjust A6A2R46

as

viewed on Model 1707B CRT.

of

positive slope without double

NOTE

d

is

set

at

the

if

necessary.

is

trig

.........................

channel A VOLTWDIV.
main coupling

........................

NORM TRIG

..............

.01

AC

f. Set main TIME/DIV to 1 mSEC.

g. Set delayed TIME/DIV to

.5

mSEC.

i

1.

Refer to schematics 5 and 6 if adjustment

cannot be made.

h. Adjust main TRIGGER LEVEL for stable dis-

play.

52

1

Adjustments

Model 1707B

i. Set sweep display to DELAYED SWEEP.

NOTE

There
rotation for A6A2R63 where step j
satisfied. If optimum high frequency trig­ger sensitivity
R63 to the most clockwise position with-

in the allowable range. If optimum low

frequency trigger stability

rotate A6A2R63 to fhe most counterclock-

wise position within the allowable
range. The trigger sensitivity
the factory for optimum high frequency
trigger sensitivity (farthest clockwise
within allowable range).

j. Adjust delayed TRIGGER LEVEL and
A6A2R63, delayed trigger sens adj, until instrument
triggers across entire range of positive slope without
double triggering.

k. Recheck performance in accordance with

paragraph 5-108. Readjust A6A2FG3

1. Disconnect test equipment.

is

a

small allowable range of

is

desired, rotate A6A2

is

desired,

is

as

necessary.

set

is

at

d. Adjust A5A4R92, position center, to center

trace vertically.

e. Adjust A5A4R46, chan B internal DC bal, for

no vertical trace shift

f. Repeat steps b through e, if necessary, until

there

is

no further change.

g. Set DISPLAY to A.
h. Center channel A POSITION control.
i. Adjust front-panel DC BAL to center trace.

j.

Adjust A5A4R43, channel A internal
for no vertical trace shift
rotated.

k. Repeat steps h through j, if necessary, until

there

is

no further change.

1. Set DISPLAY to A+B.
m. Adjust A5A4R70, A+B bal, to center trace.
n. To return to initial settings, set DISPLAY

to A.

as

channel B vernier

as

channel A vernier

is

rotated.

DC

bal,

is

'>

m. To return to initial settings, set Model 1707B

controls as follows:

delayed TIME/DIV
main TIME/DIV..
AUTO/TRIG
sweep display..
channel A VOLTS/DIV.
trig.

........................

main

HF

REJ..

delayed

n. Refer to schematics 8 and 9 if adjustment

cannot be made.

5-1

77.

POSl

5-178. Reference.

figure 5-19.

5-1 79. Description.

to center the display. This adjustment varies the
amplifier dc reference, thus establishing position.

5-180. Procedure.

a. Set DISPLAY to B.
b. Center channel B POSITION control.

c. Adjust front panel DC BAL for no vertical
trace shift as B POLARITY switch
NORM to INVT.

HF

REJ

TI ON CENTER1 NG ADJUSTMENT.

Schematics 4 through 7 and

Internal controls are adjusted

.................

...............

.....................

...........

MAIN SWEEP

............

...............

..............

is

changed from

OFF

5

uSEC

AUTO

.01

NORM TRIG

disengaged
disengaged

0.

Refer to schematics 4,

ment cannot be made.

5-181.

5-182. Reference.
5-183. Description.

gain adjust
positions on the DELAY TIME dial.

5-184. Procedure.

trace.

bright dot
left.

is on 10th vertical graticule line from left.

SWEEP

a.

Set Model 1707B controls

channel A VOLTS/DIV
main TIME/DIV..

delayed TIME/DIV

b. Adjust INTENSITY

c. Set DELAY TIME to 1.00.

d. Adjust HORIZONTAL POSITION until

e. Set DELAY TIME to 9.00.

f. Adjust A6A9R1,

LENGTH ADJUSTMENT.

Schematic 16 and figure 519.

The horizontal preamplifier

is

set to calibrate the 1.00 and 9.00

is

on second vertical graticule line from

X1

5,

6 and 7 if adjust-

as

follows:

.....

approx 5 div

of deflection

...............

..............

so

bright dot

gain adj, until bright dot

is

visible on

1

mSEC

1

uSEC

1

X1

5-22

Model 1707B

Adjustments

g.

Repea- steps c through f until bright dots

are exactly eight divisions apart when DELAY

TIME

is

moved from 1.00 to 9.00.

h. To return to initial settings, set Model 1707B

controls

be made.

5-185.

5-186.

figure 5-19.

5-187. Description.

ments are made with a known time reference input
to provide a calibrated sweep.

5-188. Equipment.

as

follows:

channel A VOLTS/DIV
main TIME/DN..
delayed TIMEIDIV

DELAY TIME

i.

Refer to schematic 16 if adjustment cannot

MAIN SWEEP TIMING ADJUSTMENT.

Reference.

a.

time-mark generator.

b. BNC cable, 44 in.

.......................

Schematics 10 and

The main sweep time adjust-

.............

...............

.................

5 uSEC

OFF

0.00

11

and

.01

f. Adjust DELAY TIME to place time mark on

center vertical graticule line. Note DELAY TIME

setting.

DELAY TIME

g. Set sweep display to MAIN SWEEP.
h. Advance DELAY TIME to intensify 10th

marker from left.

i. Set sweep display to DELAYED SWEEP.

j. Set DELAY TIME to

noted in step f.

k. Adjust A6A5R16 to align 10th time mark

with center vertical graticule line.

1.

Repeat steps d through k until no further ad-

justment is required

intensify second time mark and 10th time mark.

m. Make main sweep time adjustments in table

5-6 using procedures in steps b through

n. Disconnect test equipment.

0.

To return to initial settings, set Model 1707B

controls as.follows:

as

8.00

above dial setting

DELAY TIME

is

varied

to

1.

5-189. Procedure.

a. Connect time-mark generator to channel

INPUT.

b. Set Model 1707B controls

channel A VOLTS/DIV
main TIME/DIV..

delayed TIME/DIV

c. Set time-mark generator 1-usec time-mark

output.

d. Adjust DELAY TIME to intensify second time

mark from left.

e. Set sweep display to DELAYED SWEEP.

I

Time-mark Generator

1

usec

.1

msec

5

msec

.1

sec

I

as

follows:

.....

approx 5 div

of deflection

...............

............

Table 5-6. Main Time Adjustments

Main TIME/DIV

1

uSEC

.1

mSEC

5

mSEC

.1

SEC

1

.1

A

uSEC
uSEC

channel A VOLTS/DIV
main TIME/DIV..
delayed TIME/DIV
DELAY TIME
sweep display..

5-190.

5-191. Reference.

5-19.

5-192. Description.

ments are made with a known time reference input
to provide a calibrated sweep.

5- 1 93. Equipment.

DELAYED SWEEP TIME ADJUSTMENT.

a. time-marker generator.

b. BNC cable, 44 in.

I

.......................

...........

Schematics 12 and 13, and figure

The delayed sweep time adjust-

Adjustment

A$Rl4
AdR13

...............

...............

.................

MAIN SWEEP

5

uSEC

.01

OFF

0.00

I

5-23

Adjustments

5-1 94. Procedure. 5-199. Procedure.

Model 1707B

Connect time-mark generator output to chan-

a.

nel A INPUT.

b.

Set Model 1707B controls

channel A VOLTS/DIV
main TIME/DIV..

delayed TIME/DIV
sweep display.

c. Set time-mark generator for 0.1-use time-

mark output.

d. Adjust A6A6R16 for

e. Complete rest of sweep time adjustments per
table 5-7. Main TIME/DIV control should be one
step slower than delayed TIME/DIV.

g. To return to initial settings, set Model 1707B

controls

as

follows:

channel A VOLTS/DIV
main TIME/DIV..
delayed TIME/DIV
sweep display..

.......

...........

.....

.............

............

DELAYED SWEEP

11

marks in 10 divisions.

.............

...............

.................

as

follows:

approx 5 div

of deflection

.2 uSEC

.1

uSEC

.01

5 uSEC

OFF

MAIN SWEEP

a. Connect time-mark generator to channel

INPUT.

b. Set Model 1707l3 controls

main TIME/DIV..
channel A VOLTS/DIV

c. Set time-mark generator controls for 0.1-ms

time marks.

d. Set SWP MAG to X10.
e. Adjust A6A9R21, XI0 gain adj, for 1 div be-

tween time marks.

f. Disconnect test equipment.

g. To return to initial settings, set Model 1707B

controls

be made.

as

follows: f. Disconnect test equipment.

SWP

MAG

............................

channel A VOLTS/DIV.
main TIME/DIV..

h. Refer to schematic 16 if adjustment cannot

as

follows:

...............

.....

approx 5 div

of deflection

............

...............

1

mSEC

X1

.01

5 uSEC

A

h.

Refer to schematics 12 and

ment cannot be made.

5-195. Xi0 GAIN ADJUSTMENT.

5-196. Reference.

5-197. Description.

cuit XI0 gain adjust
for XI0 magnification.

5-198. Equipment

a. time-mark generator.
b. BNC cable,

-ark Generator

0.1 usec
1

usec

1

ms

10 ms

I

Schematic 16 and figure 5-19.

The horizontal preamplifier cir-

is

adjusted in the expand mode

44

in.

1

I

13

if this adjust-

Table 5-7. Delayed Sweep Time Adjustments

Delayed TIME/DIV

.1

uSEC

1

uSEC

1

mSEC

10 mSEC

5-200. MAG CENTERING ADJUSTMENT.

5-201. Reference.

5-202. Description.

so

the display is expanded around center screen.

5-203. Equipment.

a. Time-mark generator.

b. BNC cable,

5-204. Procedure.

a. Connect time-mark generator to channel A

INPUT.

I

I

Adjustment

A6A6R16
A6A6R15
A6A6R14
A6A6R13

Schematic 16 and figure 5-19.

The mag centering adj

44

in.

I

I

Timemark

11

in 10 div

is

set

I

I

5-24

Model 1707B

b. Set ,.,>del

1

37B

controls

as

follows:

Adjustments

Adjust A4R29, cal amp1 adj, for 6-div display.

h.

\

time-mark output.

time mark

center middle time-mark.

1707B controls

made.

5-205. CALI BRATOR ADJUSTMENT.

5-206. Reference.

main TIME/DIV
channel A VOLTS/DIV

c. Set time-mark generator controls for 1-ms

d. Adjust HORIZONTAL POSITION

is

on center graticule.

e. Set

g. Disconnect test equipment.
h. To return to initial settings, set Model

i. Refer to schematic 16 if adjustment cannot be

SWP

MAG to X10.

f. Adjust A6A9R2, mag centering adj, to re-

as

follows:

channel A VOLTWDIV.
main TIME/DIV..

SWP

MAG

..............

.....

............

...............

............................

Schematic 17 and figure 519.

.2

mSEC

approx 5 div

of deflection

so

middle

.01

5

uSEC

X1

Disconnect CAL 1 VOLT output from channel

i.

A.

j. To return to initial settings, set Model 1707B

controls

be made.

5-210. EXT

5-211. Reference.

5-212. Description.

used to adjust input compensation. A 5V, 1-kHz

signal from the square-wave generator
to EXT HORIZ INPUT and input comp, A8C1, is
adjusted

5-21

as

follows:

channel A VOLTS/DIV.
channel A vernier..
channel A coupling

Refer to schematic 17. if adjustment cannot

k.

HORIZ

for minimum overshoot and undershoot.

3.

Equipment.

a.

square-wave generator.

b.

BNC cable,

INPUT C.OMPENSATION.

Schematic 15 and figure 519.

A square-wave generator

44

in.

............

..........

CAL detent

...................

is

.01

AC

is

applied

5-207. Description.

pared against a voltmeter calibrator standard to
accurately set the calibrator amplitude.

5-208.

5-209. Procedure.

INPUT.

INPUT.

Equipment.

a.

voltmeter calibrator.

b. test leads.

a. Set channel A VOLTS/DIV to
b. Set channel A coupling to DC.
c. Connect voltmeter calibrator to channel A

d. Set voltmeter calibrator to 1V p-p output.
e. Adjust channel A vernier for display of 6 div.
f. Disconnect voltmeter calibrator.

g. Connect CAL 1 VOLT output to channel A

The calibrator output is com-

.l.

5-214. Procedure.

a. Connect square-wave generator output to

EXT HORIZ INPUT.

Set Model 1707B controls as follows:

b.

sweep display..
ext horiz VERNIER..
SINGLE

c. Set squarewave generator controls for 5V,

1-kHz output signal.

d. Adjust A8C1, input comp, for minimum

overshoot or undershoot.

Overshoot
tension of the trace on the right side of
CRT. Undershoot is characterized
intensified portion of the trace on the

right side of CRT. The best adjustment

of A8C1

of the trace and the dim extension of
the trace have disappeared.

e. Remove test equipment.

.........................

is

is

when the intensified portion

.....

EXT HORIZ INPUT

...............

NOTE

characterized by a dim ex-

by

CAL

engaged

an

5-25

Adjustments

Model 1707B

f. To return to initial settings, set Model

1707B controls

sweep display..
SINGLE.

Refer to schematic 15

g.

be made.

5-215. EXT

5-216.

5-217.

zontal amplifier
signal from a voltmeter calibrator and adjusting
horiz gain, A8R15, for exactly 10 div of horizontal
deflection.

5-218.

5-21 9.

EXT HORIZ INPUT.

Reference.

Description.

Equipment.

a. voltmeter calibrator.
b. BNC cable, 44 in.

Procedure.

a.

Connect voltmeter calibrator output

b. Set Model 1707B controls

as

follows:

.....................

HORIZ

GAIN ADJUST.

Schematic

The gain of the externa hori-

is

set by applying a lOV, 400-Hz

...........

if

adjustment cannot

15

as

MAIN SWEEP

disengaged

and figure 5-19.

to

follows:

5-223.

5-224.

through 50-ohm termination to channel A INPUT.

6-division, 50-kHz display.

pulse response.

controls as follows:

Equipment.

a. square-wave generator.

b.

50-ohm feedthrough termination.

c. BNC cable,

Procedure.

a, Connect output of square-wave generator

b. Set Model 1707B controls

channel A VOLTS/DIV
main TIME/DIV.

c. Adjust squarewave generator output for

d. Adjust A5A4R96, LF comp adj, for flattest

e. Disconnect test equipment.
f. To return to initial settings, set Model 1707B

main TIME/DIV..
channel A VOLTS/DIV.

44

in.

as

................

.....

to display approxi-

...............

..............

follows:

mately 2 pulses

5 uSEC

.01

.1

i

sweep display..
SINGLE

c. Set voltmeter calibrator controls for 1OV

output signal.

d. Adjust A8R15, horiz gain,

10 div of horizontal deflection.

e. Disconnect test equipment.

f. To return to initial settings, set Model 1707B

controls

be made.

5-220. LOW-FREQUENCY PULSE RESPONSE ADJ.

5-221.

5-222.

resistor in the vertical preamplifier
optimum pulse response.

as

sweep display..
SINGLE.

Refer

g.

Reference.
Description.

.........................

follows:

to

schematic 15 if adjustment cannot

.....

...........

.....................

Schematic 6 and figure 5-19.

The low frequency compensation

EXT HORIZ INPUT

engaged

to

obtain exactly

MAIN SWEEP

disengaged

is

adjusted for

g. Refer to schematic 6 if adjustment cannot be

made.

5-225. INPUT CAPACITANCE AND ATTENUATOR
COMPENSATION ADJUSTMENT.

5-226.

5-227.

justed

ranges. The attenuator compensation adjustment is

made with a square wave input to provide optimum

square wave response.

5-228.

5-229.

generator to both channels A and B INPUT.

Reference.

Description.

to make the capacitance the same on all

Equipment.

a.

LC meter.
b. square-wave generator.
c. BNC cable, 44 in.

Procedure.

a. Connect 600-ohm output from square-wave

Schematic 3 and figure 5-19.

The input capacitance

is

ad-

5-26

Model 1707B

Adjustments

b. Set Model 1707B controls

DISPLAY.
VOLTS/DIV (both channels).
main TIME/DIV..
coupling (channel A and B)

c. Set square-wave generator for 10-kHz, 4-

division display.

d. Perform adjustments in table 5-8 for best

square-wave response.

e. Disconnect square-wave generator.

Table 5-8. Square-wave Adjustment

VOLTS/DIV

.02
.05
.I
.2
.5

1

f. Connect LC meter to appropriate channel
listed in table 5-9 and measure input capacitance
on .01 VOLTS/DIV range. Adjust appropriate
capacitor to obtain same input capacitance

as

measured on .01 VOLTS/DIV range.

Table 5-9. Capacitance Adjustment

..........................

ChannelA

A5AlC18
A5AlC19
A5AlC8
A5AlC13
A5AlC14
A5AlC9

as

follows:

.........

..............

...........

1

ChannelB

A5A2C18
A5A2C19
A5A2C8
A5A2C13
A5A2C14
A5A2C9

ALT

.02

20 mSEC

DC

as

5-232. Description.

ation capacitors in the vertical amplifiers are ad­justed for optimum pulse response.

5-233. Equipment.

a. square-wave generator.
b. 50-ohm feedthrough termination.
c. RG

5-234. Procedure.

a. Connect output of square-wave generator

through 50-ohm termination to channel B INPUT.

b. Set Model 1707B controls

c. Adjust squarewave generator output for 6-

division, 100-kHz display.

d. Adjust A5A4C26, A5A4C46, A5A5C7,
A5A5C12, and A5A5R30 for best pulse response
with rise time of less than 4.7 ns.

e. Observe pulse response of channel B in
NORM and INVT positions.

f. Readjust A5A4C26, if necessary, to obtain
optimum pulse response for both positions with rise­time of less than 4.7 ns.

213

DISPLAY..
main TIME/DIV.

SWP

MAG.

The high frequency compens-

cable.

.............................

................

..........................

as

follows:

.1

uSEC

X10

B

g.

VOLTS/DIV

.01

.I

1

g. Disconnect test equipment.
h. To return to initial settings, set Model

1707B controls

VOLTS/DIV (channel A and B)
DISPLAY..
main TIME/DIV..
coupling (channel A and B)

i.

Refer to schematics 3 and 4 if adjustments

cannot be made.

I

5-230.

5-231. Reference.

5-19.

HIGH-FREQUENCY PULSE RESPONSE

as

ChannelA

REFERENCE

A5AlC4
A5AlC5

follows:

1

Channel B

c

REFEREMCE

A5A2C4
A5A2C5

.......

.01

............................

...............

...........

Schematics 4 and 6, and figure

5

uSEC

AC

ADJ.

A

INPUT.

response with rise time of less than 4.7 ns.

response on both channels.

controls as follows:

to ensure 75-MHz bandwidth is met.

not be made.

Connect square-wave generator to channel A

h. Set DISPLAY to A.

i.

Adjust A5A4C25, chan A HF adj, for best pulse

j. Repeat steps b through f for optimum pulse

k. Disconnect test equipment.

1.

To return to initial settings, set Model 1707B

main TIME/DIV..
B POLARITY..

SWP

MAG

............................

m. Perform paragraph 5-23, bandwidth check,

n.

Refer to schematics 4 and 6 if adjustment can-

...............

...................

5-27/(5-28 blank)

5 uSEC

NORM

X1

't

I

I

Adjustments

//

/

A 6A2

MAIN TRIGGER

R46

SENS ADJ

I

A6A2R63

~~~~~~

SENS ADJ

\

A5A2C13

INPUT CAP

\

ATTENCoMP

A5A2C18

ATTEN

COMP

17070-R-9A

Figure

5-19

Adjustment Locations

529/(530

blank)

Model

1707B

Replaceable Parts

SECTION

VI

REPLACEABLE PARTS

a.

6-1.

INTRODUCTION.

6-2. This section contains information for ordering b.
replacement parts. The abbreviations used in the

parts list are described in table 6-1. Table 6-2 lists c. Quantity of part(s) desired.
the parts in alphanumeric order by reference des-

ignation and includes the manufacturer and manu- d. Reference designator of part(s).
facturer’s part number. Table 6-3 contains the list

of manufacturers’ codes.

6-5.

the following information:

6-3. ORDERING INFORMATION.

6-4. To obtain replacement parts from Hewlett-Pack­ard, address order or inquiry to the nearest Hewlett­Packard SaledService Office and supply the follow-

ing information: c. Quantity desired.

Table 6-1. Abbreviations for Replaceable

A
ASSY

BD
BH
BP

C
CAR.

ccw

CER
CMO
COAX
COEF
COMP
CONN
CRT

cw

D
DEPC
DP
DT

ELECT
ENCAP
EXT

F
FET

FH
FIL H
FXD

G
GE
GL
GRD

AMPERE

(S)

ASSEMBLY

BOARD(S)
BINDER HEAD
BANDPASS

CENT1
CARBON
COUNTERCLOCKWISE
CERAMIC
CABINET MOUNT ONLY
COAXIAL
COEF F IC1 ENT
COMPOSITION
CONNECTOR(S1
CATHODE-RAY TUBE
CLOCKWISE

DECl

(10-l)

DEPOSITED CARBON
DOUBLE POLE
DOUBLE THROW

ELECTROLYTIC
ENCAPSULATED
EXTERNAL

FARAD61

FIELD-EFFECT
TRANSISTOR
FLAT HEAD
FlLLlSTER HEAD

FIXED

GIGA
GERMANIUM
GLASS
GROUNDED

IS)

(109)

H
HG
HP
HZ

IF
IMPG
INCD
INCL
INS
INT

K
KG

LB
LH
LIN
LOG
LP F
LVR

M
MEG
MET FILM
MET OX
MFR
MlNAT
MOM
MTG
MY

N
NIC
NE
N/O
NOP

HENRY(IES)
MERCURY
HEWLETT-PACKARD
HERTZ

INTERMEDIATE FREQ.
IMPREGNATED

INCANDESCENT
INCLUDE(S)
INSU LATION(ED)
INTERNAL

KILO (103)
KILOGRAM

POUND

(S)

LEFT HAND

LINEAR TAPER

LOGARITHM IC TAPER

LOW-PASS FILTER(S)

LEVER

MILLI

(10-3)

MEGA

(lo6)

METAL FILM
METAL OXIDE
MANUFACTURE
MINIATURE
MOMENTARY
MOUNTING
MYLAR

NANO ( 10-9)
NORMALLY CLOSED
NEON
NORMALLY OPEN
NEGATl VE POSIT1 V E
ZERO (ZERO TEMPER-

ATUR E COE F Fl Cl ENT)

and location in the instrument.

R

Instrument model and serial number.

HP

part number of item(s).

To

order a part not listed in the table, provide

a. Instrument model and serial number.

b.

Description of the part, including function

Parts

List

NEGATIVE-POSITIVE-

NPN
NS

R

OBD
OH

ox

P
PC

PF
PH L
PIV

PN P
PI0

PORC
POS
POT
P-P
PRGM
PS
PWV

RECT

RF
RFI

RH

RMO
RMS

NEGATIVE
NOT SEPARATELY

REPLACEABLE

ORDER BY
DESCRIPTION
OVAL HEAD
OXIDE

PEAK
PRINTED (ETCHED)
CIRCUIT(S)
PICOFARADS
PHI LL IPS
PEAK INVERSE
VOLTAGEW
POSIT IV E-N EGATl VE­POSITIVE
PART OF
PO RCE LA
POSITION(S)
POTENTIOMETER(S)
PEAK-TO-PEAK
PROGRAM
POLYSTYR EN€
PEAK WORKING
VOLTAGE

RECTIFIER(S)
RADIO FREQUENCY
RADIO FREQUENCY
INTERFERENCE
ROUND HEAD

OR

RIGHT HAND
RACK MOUNT ONLY
ROOT MEAN SQUARE

I

N

RWV

SB

SCR

SE

SEC
SECT

SI

L

SI

SL
SP
SP L

ST

STD
TA

TD
TFL
TG L
THY

R

TI
TNLDIO
TO L
TRIM

U

V
VAR
VDCW

W

w/

WIV

WIO

ww

REVERSE WORKING

VOLTAGE

SLOW-BLOW
SILICON CONTROLLED

R

ECTl F I E R
SELENIUM
SECONDIS)
SECTION(S)
SILICON
SILVER
SLIDE
SINGLE POLE
SPECIAL
SINGLE THROW
STANDARD

TANTALUM
TIME DELAY
TEFLON
TOGGLE

THYRISTOR
TITANIUM
TUNNEL DIODE(S)

TOLERANCE

TRIMMER

MICRO

VOLTS
VARl AB LE
DC WORKING VOLT(S)

WATT61
WITH
WORKING INVERSE
VOLTAGE
WITHOUT
WIREWOUND

11/73

6-

1

Replaceable Parts

Model

1707B

MP7

MP10

\

MP9

I

MP9 MP10' MP7 MP15

\\

I

MP14

I

MP21 I MP19 MP

/I

7

MP16

/

I

MP29

MP97

,

MP24

MP23

p

MP13

nMP96
'MP26

,

MP25

6-2

I

MP13

MPll

F/

MP27

I\

MP12 MP8

Figure

\

MPll

61.

Knob Locator

\

MP13

17078-R-12A

Model

1707B

MP75

M P4

M

P4

I

J

m

Replaceable

Parts

MPjS

MP77

ROTATED

90°

I

Model 1707BIllustrated Parts Breakdown(Sheet

Figure

1

6-2.

of

6-3

2)

,A3Q2

Replaceable

Parts

6-4

Replaceable Parts

M

l\l

Model 1707B

P68

6-4

I’

Figure 62. Model 1707B Illustrated

Parts

MP80

Breakdown

(Sheet

2

of

2)

Model

1707B

Table

6-2.

Replaceable

Parts

Replaceable

Parts

Mfr
Code

28480
28480
28480
50439
28480
28480
50439
28480

72765
28480
28480

71400
71400
27264
28480

95712
95712
95712
95712
28480

28480
28480

28480
28480
28480
28480

28480

28480
28480
28480
28480
28480

28480
28480

12697
28480
28480

28480
28480
28480
50439
28480

28480
28480
28480
28480
28480

28480
28480
28480
28480
78553

28480
28480
28480
28480
28480

28480
28480
28480

28480
28480
28480
28480
28480

28480
28480
28480

5’’

CONC BAR

REAR

Description

50

OHM FEMALE

50

OHM FEMALE

50

OHM FEMALE

50

OHM FEMALE

IN,

JGK, SGI

.5

IN, JGK, SGI DECAL

.5

IN. JGK. SGI DECAL

DIAL 2 SCALES

.5

IN, JGK, SGI DECAL

SSI

.5

IN,

QtY

A1
A2
A3

i

A4
A5
A6
A7
A8

DS1
OS2
DS3

Fl

F2
J1
J2
J3

J4
J5
J6

L1
L2
MP1

MP2
MP3
MP4
MP5
MP6

MP7
MP8
MP9
MPlO
MPll

MP12
MP13
MP14
MP15
MP16

MP17
MP18
MP19
MP20
MP21

MP22
MP23
MP24
MP25
MP26

MP27
MP28
MP29
MP30
MP31

MP32
MP33
MP34
MP35
MP36

MP37
MP38
MP39
MP40

thru

MP51
MP52

MP53
MP54
MP55
MP56

MP57
MP58
MP59
MP60
MP61

5060-1 196
01701-66553
01 707-61 103
01701-66546
01 707-65804
01707-65812
01701-26520
01701-66524

1450-0710
1450-0709
1450-0709

21 10-0002
21 10-0003

1251.2505
01 701 -67602
1250-01 18

1250-01 18
1250-0118
1250-01 18

01 701 -66001
01 701-66001
01707-00224

01701-20504
01701-24702
01 701-07101
4040-0814
01 701 -091 03

0370-1005
0370-2452
0370-0962
0370-0966
0370-0929

0370-2j 67
0370-1099

1 140-0036
0370-0959
0370-0963

0370-1 100
0370-0964
0370-21 73
0270-2397
01701-67404

0370-0958
0370-0957
0370-0958
0370-0610
0370-0671

0370-0604
0370-0606
0370-1 129

1510-0038
0510-0097

01701-23708
01 701 -041

05

01 701 -641 01
5020-8734
5020-8733

1460.0604
5040-051 1
5040-0515

01707-00219
01701-20502
5000-5085
5040-5861
01 701 -041 09

01 701 -041 08
01707-00101
01 703-00603

4

1

1
1
1
1

2

1
1

1
1
1
1

1
1
1
1

1

1
1
1
1
1

1
1
1
1
1

2
1

10
4

1
15
1
1
1

1
1
1

1
1
1

1
1

1
1

POWER L NE INP-TASSY
BOARD ASSY LINE RECT
POWER SUPPLY ASSY
BOARD ASSY: GATE
VERTICAL AMPLIFIER MODULE ASSY
HORIZONTAL AMPLIFIER MODULE ASSY
BOARD: SCALE ILLUMINATION
EXTERNAL HORIZONTAL AMPLIFIER BD ASSY

LIGHT, IND, NEON, AMB TP LENS
LIGHT, INC, NEON AMPTP LENS, RESET
LIGHT, INO, NEON AMP TP LENS, VERN UNCAL

FUSE, 2A 250V
FUSE, 3A 250V
CONNECTOR, 2-CONT, FEM, UTILITY
CONNECTOR ASSY: DC POWER
CONNECTOR-COAX, BNC,

(EXT HORlZTRlG MAIN)

CONNECTOR-COAX, BNC,

(EXT HORlZTRlG DELAY)

CONNECTOR-COAX, ENC,
CONNECTOR-COAX, BNC,

(Z-AXIS)
COIL ASSY: ALIGNMENT
COIL ASSY: ALIGNMENT
PANEL: FRONT

FRAME: FRONT
SUPPORT: CRT-CAMERA
MASK: CRT
BEZEL: OLIVE, BLACK
SPRING: FILTER CONTRAST

KNOB, BASE, PTR, ,375
KNOB. CONC. BAR AND PTR. .5 IN. JGK
KNOB, CONC, RND,
KNOB ASSY
KNOB: LEVER,JADE GREY

KNOB: RND
KNOB. EASE. PTR.
COUNTING-DISPLAY, TURNS
KNOB, BASE, RND, ,375 IN, JGK,SGI
KNOB, CONC, RND,

KNOB, BASE-CONC PTR, .5 IN, JGK
KNOB, CONC, PTR, ,375 IN, JGK, SGI
KNOB, BASE-CONC RND BAR/SKIRT,
KNOB ASSY: DELAYED TIME/DIV
KNOB ASSY

KNOB, EASE, RND, ,375 IN, JGK,
KNOB. EASE. RND.SKT. ,375 IN, JGK.SGI
KNOB, BASE, RND, ,375 IN, JGK,SGI
PUSHBUTTON OLIVE GREEN
PUSHBUTTONLEGBLUE

PUSHBUTTON B POLARITY
BEZEL: PUSHBUTTON. JADE GRAY

.5

KNOB
BINDING-POST, SINGLE, 1/4-32
RETAINER, PUSH ON, .3 DIA, CAD PLT STL

RAIL: SIDE

COVER: RAIL, REAR
COVER ASSY: RAIL FRONT
GEAR: RING HANDLE
GEAR: HUE HANDLE

SPRING COMPRESSION
CAP: TRIM HANDLE
GRIP HANDLE

NOT ASSIGNED

PANEL: REAR llNCLS2)

FRAME:

CLIP. FAN

FOOT: EASE

COVER: TRANSFORMER
COVER: CRT

DECK: BATTERY

SHIELD: GATE
NOT ASSIGNED

NOT ASSIGNED

Mfr Part Number

5060-1196
01701-66553
01707-61 103
01701-66546
01707-65804
01 707-65812
01701-26520
01701 -66524

6140-000-603

1450-0709
1450-0709

AGC-2
AGC-3

1545-R1
01701-67602
30384-1

30384-1
30384-1
30384-1
01701-66001

01701 66001
01707-00224

01701-20504
01 701 -24702
01701-07101
4040-0814
01 701 -09103

0370-1005
0370-2452
0362-0962
0370-0966
0370-0929

0370 2167
0370-1099
461
0362-0959
0370-0963

0370-1 100
0370-0964 0370-2173

0370-2397
01701-67404

0362-0958
0362-0957
0362-0958 0370-0610

0370-0671
0370-0604

0370-0606
0370-1 129

15 10~0038
C185-014-24D

01 701 -23708

05

01 701 -041
01701-64101
5020-8734
5020-8733

1460-0604
5040-051 1
5040-0515

01707-00219
C1701-20502
5000-5085
5040-586

1

0

1 70 1 -04 109

01 701 -041 08
01707-00101
01703-00603

See

introduction to this section

for

ordering information

6-5

Replaceable

Parts

Table

6-2.

Replaceable

Parts

(Cont'd)

Model

1707B

Reference
Designation

MP67

MP63
MP64
MP65

MP66

MP67
MP68

MP69

MP70

MP71

MP77
MP73
MP74

MP75
MP76

MP77
MP78
MP79
MPRO
MP81

MP87
MP83
MP84
MP85
MP86

MP87
MPRR
MPR9
MP90
MP91

MP97
MP93
MP94
MP95
MP96

MP97
MP98

PI

P7

R1

R7
R3

R4
85
R6

51

s7

S3

11

v1

Id1

u7

U3

u4

u5

U6

w7

UR

u9

u10

u11

w12

Ul3

W14

XF1

21

-IP Part Numbei

0170

1-61

20

1-00

0

1-02

1-60

0536

0084

607

607

8

176

8

604

603

609

57

1

61

1

30 3

1

3

01701-00605

01

70

01701-23203

0

17

01701-00609
0

170

01701-04101

01707-65501

1400-0798

0380

01

701-0060

oi701-04in2

01701-04103

1500-0364
0510-1036
01701-63705

0170i-2370i
1700-0037
1700-0408

0340-0450

1390- 0 OR

1390-0711

1390-0084

0510-1 147

0403-0

504 0-5R6 2

6960-0068

01701 67420
01701 67419

01700-67407
1751-258

2100-3023

7100-3017

2100-3022
2100-0478

2i00-307i

2100-7588

3101-0940

3101-1391

3101-0977
ni701-6ii05

5083-2752
01701-61610

01703-61
01701-61674
01703-61
01701-61673

01

701-61

01701-61613
01701-61605
8170-1
01701-61505
01701-61675

01

707-61

01701-61609
0170161626

1400

1901 0526

QtY

1
1

1

1
1

1

1

2

I

1

1
1

1

1

1

1

1
1

8

R

8

1

4

4

8

1

1

I

1
1

1

1
1
1
1

1

1

1
1
1
1

1

1

1

1

2

I

1
1

1
1

1

1

1

1

Description

NOT ASSIGNED

NOT ASSIGNED
HRACKtl ASSV:SJITCll
SHIFI

D:SYITCH

SHI FLI): SWITCH

C.Ol

L

AR: ANTI-ROT AT ION

KF€P€R:PL RDAKDS
SHIFIO:r101 0-OFF

I1

SHIFI
COVFR:POUFR

ROX:PllWfH ASSY
C.LAMP:CRT.
STANDOFF. ROUND. FFMA,!€,

Shl

FLO:C.RT

C

OVF

R

:

TOP

C

1IVF

R

:

ROT TOM

nRIvc.

DRIVF.

ShAFT ASSY:SJFFP TIMF
hOT ASSlGhED

hOT

ASS

SHAFT:PIlT FXTN
SDCKFT. FIFC.. TURF 14-CON1

COVrR:f.RT SOCKFT

INSIII ATIIR.

FASTFNFR. PANFL, OJARTFR TIIHN. RFTAINFR
FA5TFNtU. PANFL. OIANIFH TtIKN.
FAFTFNFR. PANFl. WAKTFR TOUN,

RETAIhFR. POSb4 ON. .R75 OlA. CAD PIT
FI1OT:R.IMPFR. KilRHFK 0.938" DIA

NOT ASSIGNED
FOOT: RFAR-CAP

PLUG. HOLE. FTANDARD HO+

NOT ASSIGNED
KNOB:DEI AYFD TRIGGER LEVEL

KN0R:OFL AYFO VERNIFR
KNOB ASSY, EXT HORlZ VERNIER

CONNECTOR. IZ-CONT. MALF. UTILITY
NOT ASSIGNED

RFSISTOR. VIR. CONT. 10K

RFSISTOR.

RESISTDR. VAR. CONT.
RESISTOR. VAR. CDNT. ZOK
RFSISTOR, VAR. CONT. lOOK
RESISTOR. VIR. 5K
SWITCH. TGL. UP01 5A1115VAC ON-NONE-ON

SUITCH

SUITCH,

TRANSFDRMFR ASSY

CRT:P31 ALUM. INT. GRATICIJLF

CARLE ASSY:COAX

CA8LF:COAX PREAMP
CA8LE:COAX GATF

CARLF:COAX VFRT PREAMP
CA8LE:CnAX 7-AXIS INPT YFlLOU CAP

CARLE:COAX
CA8LF:SHIFLDfD

CARLF ASSY:TUIN LEA0
CARlF. UNSHLD 3-COND 18AUG

CARLF ASSY:TUIN LEAD
CABLF:CnAX IINF SYNC RLUF CAP

CARLF ASSY:SYNC

C

ARLE: C OAX

CABLE: MAIN
FUSEHOLDER, EXTR POST, BAY CAP,
DIODE, MULT, FULL WAVE BRIDGE RECTIFIER

OOTFR

I

NNFR

ASSY:hC#217ONlAI

ROX

(I1

IVF

LIR

-751

in

.5

CIR

-75

GhFD

XSTR.

VAR. CONT. 2.5M

no

IO

-5

11)

X5RA. -145

10K

10%

MC

P8 1-STA STACK OPOT

TO

GATE ELIIE CAP

TO CAL

OUT YELLOU CAP

TO

CRT

ASSY

.43R

-281

-75

-161

20%

10%

20%
20%

20%

SPST

GATF

TO

1

u

U

CRT

PKG

ID,

STtlO

DlA STFFI

CC

C

CC

CC

CC

SI4

UHTE

HORlZ

15A

-003

CAP

Mfr
Code

28

480

28480
28480

28480
28480

28480
28480

28480

78480
284RO
28480
78480
28480

28480
00835

81812

50439

28480

28480
78480

91500

28480

28480

94727

791

36

98

159

28480

57771
2R480
28480

28480
27264

28480
78480

28480
28480

28480

28480
09353

28480
28480

78480
50439
28480

50439
50439

50439
53439

28480
28480

28480
70903

50439
50439

28480
28480

28480
95987
28480

Mfr Part Number

01701-6

1201

01701-00605
01701-00607

01701-23203
01701-02303

01701-00609

01701-60602
Ol7Of-04101

01707-65501
1400-0798

0380 0536
01701-00601
01701-04102

01701-04103
7CZ-11608MOO

667-4
01701-63705

01701-23701
1200-0037

1200-0408
148SR52600Fl3

1390-0088
1390-0711

82-47-101-15
5105-87-ST-CD

R-19

5040-5862
04182

01701-67420
01701-67419

01 700 67407

1625-12 P-1

2

100-30

23

17

2100-30

2100-3022

21

00-3428

2100-3021
2100-2588
7201-UAT

3101-1391
3101-0977

01703-61604

01

701-61624

01703-6

1603

01701-61623
01701-61609

01701-61613
0170

1-6

1605

KH 7147
01

701-615 05

01701-61625

01707-61613
0170

1-6

1609

01 701-61626

342014

1901 ~0526

6-6

See

introduction to this section for ordering information

Model

1707B

Table

6-2.

Replaceable Parts (Cont’d)

Replaceable Parts

Reference

Designation

A1
AlFl

AlFl
AlJl

AIS1
A2

A2C1
A7C7
A7C3
A2CR1
A7R1

A7R7
A2R3
A2R4
A3
A3MP1
A301

A3Q7
A3W1

A3A

1

A361C1
A3AlC2
A3AlC3

A3AlC4
A3A

1C

5
A3AlCb
A3AlC7
A3AlC8

A3AlC9
A3AlC10
A3AlCR1
A3A

1CR7

A3AlCR3
A3AlCR4

A3AlCP5
A3AlCR6

A3AlJ1
A3A1I

1
A3AlL7

3

A3All

A3A

11

4

A3All

L.

A3611

6

A3AIL7

E

63611

A3AIL5

A3Al0l

A3AlR1

A3A

1R7

A3AlR3

A3AlR4
A3AlR5
A3A1R6
A3AlR7

A3A

1R

E
A3AlR5
A3AlR10
A3AlR11
A3AlR12
A3AlR13
A3AlR14
A3AlR15
A3AlR

16

A3AlR17
A3AlRl8

A3AlR19
A3AlR20

A3AlSCRf
A3A1T1

A3AIVRI
A3AlVR7

A3A lVR3
A3AlVR4
A3AlXAl
A3AlXP7
A3AlXA3
A3A7

iP Part Numbe

5060-1

196

21

10-001

8

2110-0008

01701-66553

0160-3453

0180-2151

O~~O-DOR~

1901-0045

OR

11-1704

0687-1031
0

6

8

4-

104

I52

9690

RO-1819

60

0302

50-0084
50-0084

80-073

50-0084

100-3

00-3

1-00

4-008

51-

1968

139

13

731

39

15

1

1

0

0

9

1

I

1

1

1

7

0684-

01707-61103
1700-0077

5080

1854-0063
01700-61609
01701-66549
01

01
01802148

01
01
0180-0159
01
01

0180-0159

0160-3451
1901-0045
1901-0045
19ni-0418

1901-0040

1884-0094

1901 0045

ni701-67601

9100-3139

9100-3139

9140-021

9140-0210
9100-31

9

9140-0710

9100-3139

91

1854-0090

076

0687-471

0684-101

0687-7201
0811-1673

081 2-0086

OhR4-4701
0684-471

0684-4711
0684-1041

0684-1041

0684-773
0684-2731
0684-1031

0684-2
0684-7731
0684-101

0684-1041

0698 4306

0687 1011

1 8 R
01701-61104

1907-3307

1307-3059
1902-3315

1907-son7
17

1251-1968
01701-66554

QtY

1

1

1

1

77

1

13

9

1

1

16

7

1

I

1

1
1
1
1

1

4

12

23

1

84

1

1

11

3

1
1

1

45

1

I

1

7

3

4

I8

1

1

1

7

1

1

7

1

Description

POWER LINE INPUT ASSV
FUFF. .25A 125V SLO-RLO
IFOR 230V OPFRATlONl
FIICF. .5A 125V SLO-BLO

IFnR 115V OPFRATlONl
N.S.R.PART 3F Al.
N.C.R.PART OF AI.
ROARD ASSV:l INE RECT

CAPAC

ITOR.

FXD.

.O

CAPACITOR-FXD. 7003UF+75-10X 50VOC PL
CAPACITOR.FXD.

PWR

ninoE.

RESISTOR,

RFSISTOR. FXD. 10KlOX
RFCISTOR. FXD,

RFCISTOR. FXO. 1.5K10X
POWFR ZIIPPLV ACSV
INSULATOR: TRANS
TRANSISTOR ASSY:SI NPV

TRANSICTOR. 2N3055 NPU

CAR LE

:ti

I

GH

BOAR0 ASSY:HllTHFR

CAPACITOR-FXO. 100UF+75-10% 5OVDC AI
CAPACITOR-FXD. .018UF +-lo% 2OOWVDC
CAPACITOR-FXD, .47UF +-20% 5OVDC TA

CAP AC

IT

OR.

CAPACITOR.FXO.
CAPACITOR-FXD, 720UF+-20% lOVDC TA
CAPACITOR-FXO. lIIF+-ZJ% 50VDC TA-SOL
CAPACITORIFXD. . lUF+80-20% lOOWVDC

CAPACITOR-FXD. 270UF+-20% IOVOC TA

CAPAClTOR,FXO. .01UF+80-70% lOOYVOC

nIooE.

PUR

ninoE.

PUR

OIODF.

PUR

OIOOE.

SUITCHING.

THYRISTOR.

DIODE, PWR RECT. lOOV MAX VRM 750MA

CONNFCTflR ASSY

cn1c:75

CDIL:~~

cnri..

CfllL. FXD. MOLDFD RF ‘HOKE.
CDIL:~~
CDIL:~
COIL. FXD, MOL)EO RF CHOKE.

CDIL:~~
COIL:75 UH

TRANSISTOR, NPN
RFSISTOR. FXD, 1.5K59:
RFSISTOR. FXO.

RFSISTOR. FXO.
RFSISTDR. FXO.

RFSISTOR. FXOI
RFSIFTOR. FXD.
RFSISTDR. FXD.

RESISTOR. FXO.
RFSISTOR. FXO.
RFSISTDR. FXO.

RFFICTOR.

RESISTOR. FXD. 27K10X
RFSISTOR, FXO. 27K10X
RFSISTOR, FXD, 10K10X
RESISTOR, FXO. 27K10% .25Y
RESISTOR. FXD. 77K10%
RFCICTOR. FXO.

RESISTOR. FXO. lOOKlOX .25U
RESISTOR, FXD, 150K 5% .125W F TUBULAR
RESISTOR, FXD. 100
THYRISTOR.

TOROIO

OIOOF. VREG. 34.8V V7, .4Y MAX

OIOOF. VRFC.. 3.83V VI.

oionE.

ninnE.

NOT

CCINNFCTOR. PC FOGF. 10-CONT. DIP SOLDER
CONNECTOR. PC EOGE. 13-CONT. DIP SOLDER
ROAR0 ASSV:LOU VOLTAGF CONVERTER

IIH
IIH

FXO.

UH

IIH

UH

:FFRRI

VRFG.
VRFG.

ASSIGNFO

5ilF+RO-20% IOOWVDC

.

lIIF+80-70% lOOYVOC

RFrr.

51.

FYD, 700 OHM5X

VOLT AG

FX

01

RECT.

RFCT.

RECT,
DIAL

nnii)~~

FXO. IOOKlOI .25Y

SCR.

TF

39.2~

2.37~

ioov

.5W

lOOKlO%

I

.

.

470

100

77

3.9

5

47

470

470

IOOK10X

100

OHM

.25Y

-25W

STOR. MICA

SI

F

lllF

+80-

2

1UF+80-?0X lOOWVOC

51

JFOEC 2N4441

0%

SI.

ioov

SI.

ioov

SI.

BOOV MAX VRM 1.5A

SI.

30V MAX VRM 50MA

RF

CHOKE.

1W

OHMIOX

OHMlOX

OHMlO%

OHMS%

OHM5K

3W

OHMlOX

OHMlOX

OHMlOX

.25W

.75W

.23W

.25W
.75W

DHMlO%

10% .5W CCTUBULAR

.4W

.4w

v7.
v7.

.4w

MAX

VRM

5W

PY TUBULAR

CC

TUBULAR

CC

CC TUflULAR

1

OOWVDC

MAX

VRM

MAX

VRM

iooun

IOOUH

lOOUH

MO

TllBULAR

.5W

CC

.25W

.5Y

CC

2W

PY

PU

TUBULAR

.25W

CC

.75Y CC

.75W

CC
CC

CC

TUBULAR

CC

TUBULAR

CC

TUflUlAR

CC

TUBIJLAR

CC

TUBULAR

.25W

CC

MAX

MAX

MAX

750~~

TIIBUIAR

ID

750~~
750~~

5%

5%

5%

CC

TllRULAR

TURULAR

CC

TURULAR
TURULAR

CC

TURllLAR

Mfr
Code

28480
75915

759

15

28480
78480

28480

78480
28480
56289

01121
01121

01121

28480

16037

28480

80

131

50439

50439

56289

56289
56289

28480
28480

56289

56289

28480

56789

28480
28480
28480

78480
28480

2E4RO

28480

78480
28480

28480

24726

24276

28480

28480

24226

28480

28480

28480

24546

01121

01121

01121

75042

91637

01121

01121

01121

01121
01121
01121

01

171

01121
01121

01121

01121

01121

16299

01121
04713
28480

28480

2R480

28480
28480

26

7

47

26742

50439

Mfr Part Number

5060-1

196

313.250

313.500

01

70

1-66553

0160-3453

01

80-235

700-6

1609

166549

07G0500H2

00-3

139

70

1-61

104

-3

3 0

2

15

1

103

1

0150-0084

1901-0045

243F7015

E81031

C81041

CUI521

01707-61

Y112

5080-9690

2N3055

01

0170

3001

292P18392

150D474X0050A2

0150-0084
0150-0084

~~ODZ~~XOO~OSZ

1500105X0050A2

0150-0084

1500227X0010S2

0160-345

1901-0045

1901-0045

1901-0418

1901-3040

1884-0094

1901 -0045

01701-67601

9100-3139

91

15/103

15/103

9100-3139
9100-3139
15/103

9100-3139
9100-3139

1854-0090

FP32-1-T0&1501-J

E84711

CRLOll

FR2201
BWH2-3R9-J
CU281-3Y-T2-5RO-J
CR4701

C84711
CR4711
C81041
CR1041
CR2731
C82731
C8103L
C82731
CR2731

CRlOll

C81041
C4-1/8-TO-1503-J

EB 1011
2N4441

01

1902
1902-3059

1902-33

1902-3002

91-6910-1700-30
91-6910-1700-30

01701-66554

See introduction to

this

section for ordering information

6-7

Replaceable

Parts

Table

6-2.

Replaceable

Parts

(Cont'd)

Model

1707B

Reference

Desinnatior

A3A2C1
A3A2CZ
A3A7C3
A3A7C4
A3A7C5

A3AZCE
A3A2C7
A3A2C8
A3A2CS
A3A2C10

A3AZCll
A3A2ClZ
A3AZC13
A3AZC14
A3A2CR1

A3A7CR2
A3A2CR3
A3A2CR4
A3AZCR5

A3A2L

1

A3A201
A3A707
A31203
A3A704
A3A7R

1

A3AZRZ
A3A2R3
A3A2R4
A3A2R 5
A3PZRC

A3A2R

7

A3AZRR

5

A3A 7R
A3A2R

10

A3AZRll
A3A2R

12

A3A2R

13

6367814

A3A2R15

A3A7R16

A3A2T

1

A3A7111
A3AZVR1
A3A2VRZ
A3AZVR3

.IP

Part

01

50-0084
0150-0084
0180-009

0180-1802

0180-0098

0180-1780

0160-0168

0160-0380

0150-0084
0160-3451

0150-0084

0160-2141
0160-0168
0160-0168
1901-0040

1901-0040

1901-0049
1901-0049

1901-0045

91

40-012

1855-0010

1854-0476

1854-0019
1853-0027
0684-1771

0684-772
2100-1760
0757-0199
0757-0442
0684-47?l

0684-1011

0684-1011
0684-1
0684-1011
0698-3159

0757-0401
0684-1521

06

84-

104

0684-2711
0813-0050

9100-3157
1870-0058

1907-0033

1907-3256

1907-0197

Numbe

8

8

1

01

1

1

QtY

10

1

1

4

1

3

4

1

1

1

1

1

10

2

2

1

8
9

7

14

10

1

1

1

2

1

1

Description

CAPACITOR.FXD. .IUF+80-20% 100WVOC
CAPACITOR.FXO+

CAPACITOR-FXD. 1OOUF+-ZO% ZOVOC TA

CAPACITOR-FXO. 150UF+75-10X 40VOC AL

CAPACITOR-FXOI lOOUF+-ZO% 70VDC TA

CAPACITOR-FXO. 500UF+75-10% IOVOC AL
CAPACITnRvFXO. -1UF+-lOX ZOOUVOC
CAPACITOR. FXO. .2211F+-

CAPACITOR.FX0. .1UF+80-70% lOOWVDC

CAPACITflR.FX0. .01UF+80-20% 100UVOC

CAPACITOR.FX0.
CAPACITOR.FXOv 68OPF+-20% lOOOUVOC
CAPACITOR.FX0.

CAPACIlOR.FXD.
DIODE. SWITCHING.

DIODE. SWITCHINS.

DIOOF.

PUR RECT.

OIODE. PUR RFCT.

DIDOF. PWR RECT.
COIL. FXD. MOLDED RF CHOKE.
TRANSISTOR. UNIJUNCTIONI P ON N 2N7646

TRANSISTOR. 713879 NPN
TRANSICTflR, 2N3053 NPN

TRANSISTOR. PNP
RFSISTOR. FXO.

RFSISTOR. FXO. 2-7KIOI

RFSICTOR.

RESISTOR. FXD. 21-5KlX

RfSISTOR.

RFSISTOR. FXO. 4.7K10% .25U

RESISTOR.

RESISTOR.

RESISTOR.

RESISTOR. FXO.
RFSISTDR. FXO. Z6-lKlZ -12% F TUBULAR

RFSIFTOR.

RFSISTOR. FXO.
RFSISTnR. FXD.
RFSISTOR. FXO.
RFCISTOR. FXO.

TRPNSFORMFR
INTFGRATFO CIRCUITv LIN. OP AMPL.

oInoE.

VRFG.

ninnE.

VRFG.

VRFG. 87.5V VZt

OIDOE.

.

lUF+80-20% lOOUVDC

10%

ZOOUVOC

-

lUF+RO-ZO% IOOUVOC

.IUF+-lOX

.

IUF+-lO% ZOOUVOC

SI.

SI.

SI.

SI

1.7K10X

VAR. TRMR. 5KOXM 5%

FXD. lOKlX .175U F TUBULAR

FXD.

100

100

FXDI
FXO.

100

100

FXD.

100

1-5KlOX -25U

1OOKlOP

770

100

6.2~

23.7~

LOOUVDC

SI.

30V MAX VRM 50MA

SI.

30V MAX VRM 50MA
50V MAX VRM 750MA
53V MAX VRM 750MA
IOOV MAX VRM 750MA

??MU

SI

SI

-2515

CC

TUBUL4R

.25U

CC

TUBULAR

MU

-125W

F

TURIILAR

CC

TUBULAR

nHniox

.25w

DHMlOX -25U

OHMlOP:

DHMLO'X -25Y

OHWIX -175U

.75U

OHHlO%

OHMS%

WZ.

.75u

VI.

.4u

1U

cc

CC

-25W

CC

CC

F

CC

TURULAR

CC

TIIRUIAR

-75U

CC

3U

PU TUBULAR

MAX

WAX

MAX

5%

Mfr

Code

28480
28480

56289

56289

56289

56789
56289
28480
28480
28480

2~480

28480

56789
56289

78480

28480

78480

28480
28480

99

8

00

03508
07735

04713

28480

01121

01121

28480

24546
24546

01121

01121

01121

01121
01121

16299

24

5

46

01121

01

121

01121

91637
28480

07263

03877

28480
28480

Mfr Part Number

0150-0084
0150-0084
1500107X0020S2

3901

57G040E

15001

39050760 10E
2

92

P

0160-0380

0150-0084

0160-3451

01

50-0084

0160-2141
297P10492
297P 10492
1901-0040

1901-0040
1901-0049
1901-0049
1901-0045

RP-964

2N7646
2N3879

2N3053
1853-0027

CR1221

C82721

21

00-1760
C4-118-10-2152 -F
C4-118-TO-1002-F
C84721

CBlOll

CBlOll

C81011

C8lOll
C4-118-TO-2612-F

C4-1/8-TO-l'Ol-F
CR1521

C81041

C822ll

CUZR

1n823

1902-3756

1902-0197

J4

D7XO020SZ

J4

10492

1-3U-12-10

1-J

A3A3
A3A3C1
A3A3C7
A3A3C3
A3A3C4
A3A3C5

A3A3Ct
A3A3C7
A3A3Ce
A3AlC9
A3A3C10

A3A3CR1
A3A3CR7
A3A3CR3
A363CR4
A36 3C R5

A3A3CR6

A3A3CR7
A3A3CR8
A3A3L
A3A3L7

A3A3MP1
A3A3MP2
A3A3T1

A3A4
A3A4A
A3AU1

6-8

ROAR0 ASSY:RECTIFIFR FILTER

01

701-66537

0180-009

0
0180-0098

0180-0098

0180-0098

0180-0159

0

0180-0098

0180-0098
0180-0098

1901-0646

1901-0646

1901-0646

190

1901-0646
1901-0646

1901-0646
1901-0646

1

1

9100-3139

9100-3139
0403-0175

1400-0475

9100-3235

01701-66556
01701-61107

01

1

80-

1

8

60-01

?

0-7

1-0646

1

344

344

68

1

CAPACITOR-FXD. IOUF+51-1OX IOOVOC AL

7

CAPAC ITOR-FXO. 150UF+75-10% 75VOC AC

4

CAPACITOR-FXD.

C

APAC ITOR-FX

IT

OR-FX

CAP AC
CAPACITOR-FXD. 270UF+-ZOX lOVOC TA
CAPACITOR-FXD. 150UF+75-10% 75VDC AL

CAPACITOR-FXO, 100UF+-20% 20VDC TA
CAPACITflR-FXO. 100UF+-20% ZOVDC TA
CAPACITOR-FXO. 100UF+-70L ZOVOC TA

DIODE. PUR

8

OIOOE. PUR

DIODE.

PUR

0IODE. PUR
DIODEI

PUR

DIODE. PUR RFCT.
OIOOE. PWR RFCT.

OIOOEI

PUR
COIL:75 UH
COIL:75 UH

8UMPER:RU8RFR 0.750" OIA

1

CLAMP. SNAP-IN. -438 DIA

1

TRANSFORMFR:TOROID 8 CFC.

1

ROARD ASSY:HIGH VDLTA;F

1

NIGH VOLTAGE TRANSFORMER ASSY

1

CAPACITOR.FX0.

IOOUF+-ZOP

0.

10

OUF+-2

0.

1

OOJ

F

+-

51.

RECT.

51.

RECT.

SI.

RFCT.

SI.

RFCT.

RFCT.

SI,

SI.

SI.

RfCT.

SI.

.

lUF+-lO% ZOOUVOC

IOVOC

0%

2

0%

2OOV MAX VRM lA
ZOOV MAX VRM
700V MAX VRM lA
2OOV MAX VRM IA

7OOV MAX VRM lA
2OOV MAX VRM IA

ZOOV MAX VRH 1A
700V MAX VRM 1A

OSCI

TA
ZOVOC TA
ZOVDC TA

IA

-5 L VINYL

LLATOR

50439

56289

56289
56289

562

89

56289

56289

562

R9

56

2%9

56289

56289

28480
28480
78480
28480

28480

28480
28480

28480
28480
28480

77969
24618

78480

50439
50439
56789

01701-h6517

30nimr ioonc2

3901 576075F.14

I

50ni 07x0020s~
1500107X0020S2
~~OD~O~XOO~OSZ
1500277X0010S2

3901 576075FJ4
1500107XOO?OS2
15ODlO7X0O2OS2
1500

107

XOOZOSZ

1901-0646

1901-0646

1901-Oh46

1901-0646

1901-0646

1901-

646

19 01

-86

46

1901-0646

9100-3

139

91

00-3139

6657
721-0004

9100-3235

01701-h6556
01701-61107
297P10492

See introduction to this section for ordering information

Model

1707B

Table

6-2.

Replaceable

Parts

(Cont'd)

Replaceable

Parts

Reference

Desianation

A3A4C2
A3A4C3
A3A4C4
A3A4C5
A3A4C6

A3A4C7
A3A4CB
A3A4C9
A3A4C10
A3AUll

A3A4C12
A3A4C13
A3A4C14
A3A4C15
A3A4C16

A3A4C

17

A3A4Cl8
A3A4C19
A364C20
A

3PU21

A3A4C22
A3A4CR1
A3A4CR2
A3AUR3
A3A4CR4

A3A4CR5
A3A4CR6
A3AUR7
A3A4Cl8
A3A4CR9

A3d40S1
A3A40S2
A3A4F1
A3AU

1

A3A4MP1
A3A4MP7

A3A4MP3
A3A4MP4
A3A4MP5

A3A4HP6

A3A4MP7

63640

1

A3A402
A3A4Q3

1

A3A4R
A3A4R2

A3A4R3

A314R4
A3A4R 5
A3A4R

6

A314R7
A3A4R

e

A314R9
A3A4R10
A3A4Rll

A3A4R

12

AM41113

14

A3A4R
A3A4R15
A3A4R

16

A3A4R

17

A3A4R

18
13A4R19
A3A4R2O
A3A4R21

A344R22

iP Part Numbe

0

160-2403
0160-3453
0180-0291

0180-1

746

0170-0040
0160-3453

0160-3800
0160-3801

0160-3800

01

6

0-380

54-0215

100-7

84-47

103

514

1

8

5

3

1
1

1

1

1

0160-3801
0160-3801
0160-1800

0160-3800

0160-3801
0160-3801

0160-3800

0180-1746

1901-0040

1901-0040

1901-0040

1901-0040

1901-0049

1901-0049

1901-1072
1901-1072

1901-0033
2140-0018

2140-001
2110-0033

9100-2268

5040-0402

5040-0430

2200-012

7110-0769
2110-0269

2200-0111
1854-0023

18

1853-0036

2

0757-0464

0698-7807

0698-5927
0698-5927

0684-1021

0684-4721
0684-1011

Ob

0684-102

0684-1021

0687-5611

06 84-

0684-1 03

2100-2692

0684-1031

0836-0003

0684-1051

0684-1531

0684-1011

0684-471

0684-1011

QtY

1

3

6

1

5

6

2

1

7

1

I

1

1
1

14

1

1

24

22

1

1
1

2

15

7

1

1

1
2

3

Description

CAPAClTOR.FX0. .0015UF+-20% 5OOOUVOC
CAPACITOR.FX0. .05UF+80-?0% lOOUVOC

CAPACITOR-FXO. lUF+-10% 35VOC TA-SOL
CAPACITOR-FXO. 15UF+-lOX 2OVOC TA-SOLI0
CAPACITOR.FX0. .047UF+-lOX 2OOUVOC

CAPACITOR.FXD. .05UF+80-20X lOOUVOC
CAPACITOR.FX0. .005UF+-20% 3000UVOC
CAPACITOR.FX0. .005UF+-20X 3000YVDC
NOT ASSIGNEO
CAPACITOR.FX0. .005UFt-20% 3000UVOC

NOT ASSIGNED

CAPACITOR.FX0. .00511F+-20% 3000UVOC

CAPACITOR.FXD. .005UF+-20X 3000UVOC
CAPACITOR.FXO+ .005UF+-20% 3OOOUVOC
CAPACITOR.FY0. .005UFt-201

CAPACITOR.FX0. .005UF+-201 3000UVOC
CAPACITORIFYO. .005UFt-20X 3OOOYVDC

CAPACITOR.FXD. .005UF+-20X 3000UVOC
NDT ASSIGNFD

CAPACITOR.FX0. .005UF+-20% 3000UVOC

CAPACITOR-FXO. 15UF+-lO% 2OVOC TA-SOLI0
OIOOE. SUITCHING.
OIOOE. SWITCHING. SI. 30V MAX VRM 50MA
OIflOE. SUITCHIYG.
OIOOF. SYITCHINGI SI. 30V UAX VRM 50MA

OIOOE. PUR RECTI
DIODE. PUR RECT. SI+ 50V MAX VRM 750MA

OIDOF.

HI

OIOOE.
DIODE.

LAMP. GLW.
LAMP. GLOU. 8VLR

FUSF.

COIL. FXD. MOLDED RF CHOKE. 22UH
MOUNT :TRANSFORMFR

M0UNT:TRANSFORMER
SCREU.MACHINE. 4-40 UNC-2A

CL1P:FUSE
CL1P:FUSE 0.250" DIA

NOT ASSIGNED
SCREUlMACHINE.

TRANSICTOR.NPN

TRANSISTOR. NPN SI

TRANSJSTOR. PNP
RFSISTOR. VAR. TRMR.

RFSISTOR.

RFSISTOR. FXO. 8.5M.lX
RESISTOR. FXO. 1.8MlX .5Y MF TUBULAR

RFSISTOR.

RFSISTOR. FXO.

RESISTOR.

RESISTOR. FXO.
RESISTOR. FXO. 47K10X .25Y
RFSISTOR. FXO. 1KlO.Z .25W
RESISTOR. FXO. lKlOX .25U

RESISTOR. FXO. 560
RESISTOR. FXO. 10KlOX -25U

RESISTOR. FXO. lOKlOX .25U

RFSISTOR.

RESISTORI FXO. lOKlOX .25U

RESISTOR. FXO. 29MlOX

RESISTOR. FXO. lMlOX .25U

RFSISTOR.
RFSISTOR. FXO.
RFSISTOR. FXO.

RESISTOR. FXO.

VOLT RECT, 51.

HI

VOLT RECT.

GFN PRP. SJ. l8OV

-758

0.250"

FXO. 90.9KlX

FXOI 1.8M1% .5U MF TWJULAR

FXO. 4.7K10X .25U

VAR. TRNR.

FXO. 15K10X .25U CC TURULAR

8lH8

250V

SI.

SI.

SI.

1-2.

1-2.

OIA

4-40

SI

(SELECTED

SI

lKlOX

100

OHMlO% .25W

OHMIOX

100

OHMlOX

470

OHHlOl ,25U

100

OHY10X

3000UVDC

30V

MAX VRM 50MA

30V MAX VRM 50MA

50V MAX

5KV

SI.

5KV MAX VRM
MAX VRM

58V
58V

1.5

UYC-7A .5 IN PAN

ZOKOHM

-12%

2W

.25Y

lMOHM

1Y

CF TURULAR

212484)

10%

MF TURULAR

CC

CC

CC

CC

CC

.5U

CC
CC

208

CC

CC

.25U

.25U

IO

VRM 750MA

VRM

MAX

200MA

10L

IN PAN

C

F

TUBULAR

TUBULAR

TllUULAR

CC

TUBULAR
TURULAR
TUBlJLAR

CC

TUBULAR
TUBULAR

C

TUBULAR

TUBULAR

CC
CC

CC

Mfr
Code

28480

28480

56289
56289

56289
28480

28480

28480
28480

28

480

28480

28480

28480

28480

2R48O

28480

78480

56289

28480
28480

28480

28480

28480
28480
28480

28480

28480

08806

08806

75915
24776

28480

28480

77250

91

506

91506

77250

28480

04713

28480

19701
21546

03888

30983

30983

01121

01121

01121

01121

01121
01121

01

121

01121

01121

19701

01121

77764

01121
01121

01121
01121

01121

Mfr Part Number

0160-2403

0160-3453

1500

105X9035AZ
1500156X902082
292P47392

0160-3453

0160-3800

0160-3801

0160-38 00

0160-3801
0160-3801

0160-3801
0160-3800

0160-3800

0160-3801

0160-3801
0160-38

00

1500

156

X902082

1901-0040

1901-0040

1901-0040

1901-0040

1901-0049
1901-0049
1901-1022

1901-1022
1901-0033

A9A (NE-ZEl)

A9A (NE-2El)

312.750

101222

5040-0402

5040-0430

6008-37CN
6008-32CN

1854-0023

3611

SPS

1853-0036

FT50X203
C4-118-TO-9092-F

PME80-2-TO-8534-F
MF7C112-TO-1834-F
MF7C112-TO-1834-F

CRlO21

C84721
C8lOll
C84731
CR1021

C81021

E85611

C81031
C81031
ET5OX105

C81031

RBFU-1-2905-K
C81051

C81531

CBlOll

C84711

C8lOll

A4
A4C1

A4C2
A4C3
A4C4

A4C5
A4C6

A4C 7

0170 1-66546

0180-01

04

0160-2432
0160-3453
0160-3453

01

50-0084

0

160-

3452

0121-0168

BOAR0 ASSY:GATF

1

CAPACITOR-FXO. 200UF+75-10X l6VOC AL

1

CAPACITOR.FX0. 1UF+-5X IOOWVOC

2

CAPACITOR.FX0. .05UF+80-20% lOOUVOC
CAPACITOR.FX0. .O%F+80-2OX lOOUVOC

CAPACITOR.FX0. .1UF+80-20L lOOUVOC
CAPAC ITOR.FX0. .OZUFt-ZOX lOOWVOC

3

1

CAPACITOR. VAR.

TRMR.

PSTN. -211.5PF

See introduction to this section for ordering information

50439

56

2

89

84411
28480

28480

28480

28480

28480

01701-66546

300207G0160F2
863110451WZ
0160-3453

0160-3453

0150-0084

0160-3452

0121-0168

6-9

Replaceable Parts

Table

6-2.

Replaceable Parts (Cont'd)

Model

1707B

Reference
Designation

A4C8
A4C9

A4ClO
A4Cll
A4Cl2
A4C13
A4C14

A4C15

A4C16

A4C17
A4CR1
A4CRZ

A4CR3

A4CR4

A4CR5
A4CR6

A4CR7

A4CR8

A4CR9

A4CRIC

A4CR11

A4CR12

A4CR13

A4CR14

A4F1

A4FZ

A4F3

A4F4

A4F5

A4F6

A41

1

A4L2

A4L3

A4MP1

A4MP7

A4MP3

A4MP4

A4MP5

A4MP6

A4M P7

A4MP8

A4MP9
A4MP1

G

A4MPll

A4MPI2

A4MP13

A4MP14

A4MQ15
A4Ql
A4Q2
A4Q3

A404

A405

A406

A407

A408

A409

A40

10

A4R

1

A4R2
A4R3
A4R4

A4R5

6

A4R
A4R7
A4R8
A4R9

AM10
A4Rll

A4R12

13

A4R
A4R14

A4R

15

A4R16
A4R17

-IP Part Numbei

0100-3457

0150-0084
0150-0084

0

1

50-0

08

0180-0091

0180-2344

0180-0098

0180-0098
0180-7344
0180-0159
1901-0040
1901-0040

1901-0040

2110-0004

2110-0004

9100-3139
9100-3139

4

1901-0040

1901-0040

1901-0040

1901-0040

1901-0040
1901-0040

1901-0045

1901-0045

1901-0045

1901-0045
1901-0045

21

10-0004

21

10-001

2

2110-0017
21

10-001

7

9100-3

139

2110-0769
2110-0769

71

10-0769

21

10-0269

2110-0269

2110-0769
2110-0769
7110-0769
2110-0769

21

10-0769

2110-0269

2110-0769

1700-0195
1705-0073

1400-0175
1854-0215
1854-0715
1857-0036
1854-02

1

5

1854-0715
1853-0036

1853-0732

1854-041
1853-OORO

1854-0077
0684-7721

0684-1021
0757-0435
0684-7771

0757-0453
0684-101

0684-1

0757-0442
0698-3154

0684-1011
0684-472

06

0757-0438
0757-0454

0684-472

0684-681

0757-0457

84-

9

1

01

1

1

10

1

1

1
1

QtY

3

3

1

1

1

1

1

1

1

10

7

1

1

10

1

1

1

Description

CAPACITOR.FX0. -07UF+-7OX lOOUVDC

CAPACITOR.FX0.

CAPACITOR.FX0.
CAP AC

IT

OR.

CAPACITOR-FXO. 1OIJF+50-10% lOOVOC AL
CAPACITOR-FXO. 15OUF+75-lOX 75VOC AL

CAPAL

IT

OR-FXO.

CAPACITOR-FXO. 100UF+-20% 2OVDC TA
CAPACITOR-FXO. 150UF+75-10% 75VOC AL

CAPACITOR-FXO. 220UF+-70% lOVOC TA

DIOOF. SUITCHIYGI

OIODE.

CUITCHIYG.

oInnE.

SWITCHING.

DIODEI

SUITCHING.

OIOOEI

SUITCHING.

DIODE.

SUITCHIMG.

OIOOF. SWITCHING.

DIODE.

SUITCHING.

DIODE.
DIODE.

OIOOF.

DIODE.

DIODE.

OIOOF. PUR RFCT.
FIJSF. .25A 750V

FUSE. .25A 750V

FUSE. .5A 250V

FUSF. .5A 250V
FUSF. .25A 250V
FUSE. .5A 750V

C~IL:~

COIL175 UH
COIL:75 UH

CL1P:FUSE
CL1P:FUSE
CL1P:FUSE 0.250"
CL1P:FUSE 0.253" OlA

CL1P:FUSE
CL1P:FUSF

CL1P:FUSE

CL1P:FUSE 0.250"

CL1P:FUSF 0.250"

C1IP:FUSE

CL1P:FUSF 0.250'' DIA

CL1P:FUSF 0.250" OIA

SOCKET. ELFC.

HFAT-DISSIPATOR. SGL.

TRANSI5TOR. NPN

TRANSISTOR. NPN

TRANSISTOR+ PNP

TRANSISTOR. NPN

TRANSISTOR. NPN

IRAMSISTOH~ PhP

TRAhSISTOk. PNP

TRANSISTOR. NPU
TRANSISTOR. PNP

TRANSISTOR. 2N3054 NPU

RESISTOR. FXO. 7.2K10X .75U CC TIIR(JIAR

RESISTOR.

RESISTOR.

RFSISTOR. FXO. ?.7K10% .75U

RFSISTOR. FXO. 30.lKlX -125U

RFSISTOR.

RFSIFTOR.

RFSISTOR. FXO. 10Kl% -125U F TUBULAR

RFSISTOR. FXn+ 4.22KlL -125U F TURULAR

RFSISTORI

RESISTORI

RFSISTOR.

RFSISTOR. FXD+

RFSISTOR.

RESISTOR.

RFSISTOR.

RFSISTOR. FXD. 47.5KlX -125U F Tll8ULAR

.

lUF+80-20X lOOWVOC

-

lUF+80-20X lOOUVOC

FXO , -1

UF+RO-

10

DUF+- 2

SUITCHINGr

PUR RFCT.
PUR RECT.
PUR RECT.

PUR RECT.

UH

SI.

SI.

SI.

SI.

SI.

0.750"

DIA

0.250''

DIA

DI

OIA

0.750"

0.253" Old

Old.

0.253"
DIA
OIA

0.250"

OIA

IC

8-CONT DIP SLOR TERM

SI

SI

SI

SI

SI

ZI

51

SI

SI

FXOI 1KlDX
FXD. 3.92KII

FXO.

100

FXOI

100

FXOI

100

4.7KlOX

FXD.

100

FXD.

5.11KlX -125U F TUBULAR

33.2KlX

FXO.

4.7KlOX

FXD.

680

FXD.

1

OOUVOC

7

OX

OX

ZOVOC TA

SI.

30V MAX VRM SOMA

SI.

30V MAX VRM 50MA

SI.

3ov

MAX

30V MAX

SI.

30V MAX

SIr

SIr

51.

SI.

SIt

30V
30V

30V MAX

30V MAX
lOOV MAX
lOOV MAX
lOOV MAX

OOV

OOV

A

in-5

MAX VRM
MAX

MAX
MAX

PKG

SI

.25U

CC

-12%

CC

OH"I0X

-7%

OHY10X

.25U

OHMlOX -2%

.25U

-12%
.25U

CC

.25U

CC

-2%

DHUlOX

OHMlOX

VRY

SOMA

VRM SOMA
VRM 50MA

50HA

VRM 50MA

VRM 50MA
VRM 50MA

VRM 750MA
VRH 750MA
VRM 750MA

VRM 750MA
VRM 750MA

TUBULAR
F TlJRULAR

TUBULAR

F

TUBULAR
CC

CC

CC

TUBULAR

CC

F TUBULAR

TURlJLAR

CC

Mfr
Code

28480
28480

28480
28480

56289

56289

567

89

56289
56289

56289
28480
28480

28480
28480

78480
78480
28480

28480

28480
28480

28480
78480

28480

28480

71400

71400

71400

71400

71400

71

400

28480
28480

78480

91506

91506

91506

91

506

91506
91

506

91506

91506

91506

91506

91506

91506
91506

284RO

04713

04713

28480

04713

04713
28480

28480
28480

28480

02735
01121

01

121

74546

01171

24546

01121

01121
24546

16299

01121

01121

01121

24546

24546

01

121

01121

24546

Mfr Part Number

01

60-345 2

0150-0084

0150-0084
0150-0084

300106F100DC2
390157G075FJ4

150D107X0020S2

1500

107

XOO2OSZ

390157G075FJ4
150D227XOOlOS2
1901-3040
1901-0040

1901-0040

1901-0040
1901-0040
1901-0040

1901-0040

1901-0040

1901-0040
1901-0045

1901-0045

1901-0045

1901-0045

1901-0045

AGC-114
AGC-114
AGC

112

AGC

112

AGC-114
AGC

117

9100-3139
91

00-31 39

9100-3139
6008-32CN

6008-32CN
6008-32CN

6008-32CN

6008-32CN

6008-32CN

6008-3ZCN

6008-32CN

6008-32CN

6008-32CN

6008-32CN

6008-32CN

8058-1645

1205-0073

3611

SPS
SPS

3611

1853-0036
SPS

3611

SPS

3611

1853

-0036
1853-0232
1854-0419
1853-0080

2N3054
C82221

CR1021
C4-118-TO-3921-F

CRZ721

C4-118-TO-3312-F
C8lOll

CRlOll

C4-118-TO-1002-F

C4-1 18-TO-4221-F

C8lOll

CR4721

CRlOll

C4-1 18-TO-5111-F
C4-l1R-TO-3322-F

C84721
C868ll

C4-118-TO-4752-F

,

6-10

See introduction

to

this section

for

ordering information

Model 1707B

Replaceable Parts

Table 6-2. Replaceable Parts (Cont’d)

Reference

Designation

A4R18
A4R

19

A4R70
A4R71
A4R

22

A4R73
A4R24

A4R75

A41376
A4R77

A4R28
A41379

A4R30
AM31
A4R37
A4R39
A 4R

34

A4R35
A4VR

1

A4VR7
A4VR3
A5
A5C1

A5C7
A5C3

A5C4
A50.51

A5.11

A5J7
A5MP1
A5MP7
A5MP3
A5MP4

A5MP5

A5MP6
A5MP7
A5MP8
A5MP9

A5MPlC
A5R

1
A5R7
A5R3
A5R4
A5R5
A5R6
A5R7
A5RR

A5R9
A5R10

A5Rll
A5R12
A5R13
A5R

14

A551
A557
A5k1
ASW7

-IP Part Numbe

0757-0449
0757-0773

0757-0421
0757-0416

0757-0407

0684-4701
0684-1051

0684-5631

0684-1001

0757-0440

0684-2721

21

00-1

78R

0757-0760

0684-1071

0684-477

0684-1

zi00-7n30

1902-0039

1907-0052

1902-0744

01

0160-2Y13

0160-7913

0160-7757

0160-2761

1450-0709

125n-nii8

1250-011R

1490-0841

01701-00603

01701-00608

01701-01213

01701-04107

0170

01

01707-01
01707-09102

01707-23701
0757-0476

0757-0476

2100-3007

7100-3007

7100-7497
0757-0397
0698-3432

2100-2497
0757-0397

0698-3432

21

2100 3099

3101-1396

3100-7557

01707-61604

01

001

707-65

1-2170

701-24701

00

3099

707-61

1

R04

20

605

I

1

QtY

3

12

5
5

3

3

10

9

1

1

1
1

1
1

7

7

3

1

6

1

2

2

1

7

1

3

1

1

1

2

7

7

?
3

7

1

1

1

1

Description

RFSISTOR. FXO.
RFSISTOR. FXD.

RESISTOR.

RESISTOR. FXD.
RFSISTOR. FXD.
RFSISTOR. FXO.
RFSISTOR. FXDt

RFSISTOR. FXOI 56KlOL .25Y

RFSISTOR. FXO.
RFSISTOR. FXO. 7.5KlX -125W F TUBULAR
RFSISTDR. FXD. 7.2K10X
RFSISTOR. VAR+

RFSISTOR. FXO. 70K1X

RFSISTOR. FXO. lKlOX .25U CC TUBULAR

RFSISTOR. FXO. 4.7K10X

RFSISTOR. FXO.
NOT AFSIGNED

RESISTOR. VAR.
OIOOF. VRFG. 6.2V VZ. .75Y MAX
DIODE. VREG. 6.81V VZ. .4U MAX
OIOOF. VRFG. 30.1V VI.
VFRTICAL AMPLIFIFR MODULE ASSY

CAPACITOR. FXO.

CAPACITOR.FX0. .OlUF+85-20% 5OOWVDC
CAPACITOR~FXO. lOPF+-5X 5OOYVOC
CAPACITOR.FX0. 15PF+-5X 5OOYVOC

LIGHT, INO. NHlN.
CONNFCTOR-COAX. 8NC.

CONNFCTOR-COAX,

ORIVE. SFT CPLR

SHI

FLO:

VFRTIf.Al fllrTPLll

SH1FLO:VFRTICAl

RKACKFT:OlFPI AV 5.WITC.I

PI ATF:ATTFNIIATOR COVFR

RUSHING: POT

SPACFR: RNC

BRACKET: POT
SPRING: SHAFT GROUND

SHAF1:POT EXTENDER
RESISTOR. FXO. 301KlX

RFSISTOR. FXO. 301KlX

RFSISTOR.

RFCISTOR. VAR. CONT. 5OK 70X CC

RESISTflR. VARI CONT. 5K
RFSISTOR. FXO.
RF5lSTOR. FXO.

RFSISTOR, VAR. CONT. 5K
RFSISTOR. FXOI

RESISTOR. FXO. 26.1

RESISTOR, VAR, CONT, 5K 10% C

RESISTOR, VAR, CONT. 5K 10% C

NOT ASSIGNED

NOT ASSIGNED

SW1TCH:PUSHRUTTON 2 POLF 1 STATION
SWI1CH:ROTARY
CARLF ASSY :VERTICAL
CARLF ASSY:VFRTICAL

70KlX

3.01KlX

FXO.

875

511

200

47

OHMIOX .25U

lMlOX

10

OHMlOX

TRMR.

10

OHMIOX

TRMR.

-0

lUF

YHT

RNC.

-177

MOOcII

VAR. CONT.

68.1

76.1

68.1

2

PMF 1 STATION

-125W

F TUBULAR

-125W

F TUBULAR

OHMlX

.125W

OHMlX

.175W

OHMlP

.125W

.25W

CC

TlJ8ULAR

CC

.25W CC

.25W

CC TU8ULA.R

500

OH4

1OX

.25W F TUBULAR

.25W

CC TU8llLAR

.75W

CC

70KOHH

10%

1U

MAX

+8

5-2OX 500WVOC

TP LENS

53

OHM FFMALF

50

flHM FFMALF

IO

-281

00

F

-125W

F

TUBULAR

.125W

F TUBULAR

50K

70%

CC

20%

20%

CC

-125W

-125W
CC

-125W

-125W

OHMIX

OHMlX

OHMlX

OHMlX

SUR

F
F
F

CC

TURULAR

C

C

-375

F
F

F

F

Mfr
Code

74546

24546

24546
24546

24546

01121

01121

01121

01121

24546

01121

78480

24546

01121

01171

01121

28480

03877

28480

28480

28480

28480

28480
28480

78480
72765

95712

95712

L

28480

28480

28480

28480

28480

28480
28480

28480

28480

28480
24546

24546
ZR480

28480

28480

74546

03888

28480
24546

03888

28480
28480

28480

28480
28480

28480

Mfr Part Number

C4-118-TO-2002-F
C4-118-TO-3011-F

C4-118-TO-825R-F
C4-118-TO-511R-F
C4-ll8-TO-201-F

CR4701

C81051

CB5631

cRioni

C4-118-TO-7501-F

C82221

2

100-1788

C5-114-TO-2
C81021
CR4721

C8lOOl

2100-2030

1N823
1902-0052

1902-0244

01707-65804

0160-2913

01

60-2913

0160-2257

0160-2261

6140-000-603
30384-1

30384-1

1490-0841

01

70

01

701-00608

01

70

01701-04107
01701-21701

01701-24701

01

707-01

01707-09102

01707-23701

C4-118-TO-3013-F

C4-ll8-TO-3013-F

2100-3007

2100-3007

7100-2492

C4-118-TO-68R1-F
PME55-118-TO-ZbRl -F
2100-2492

C4-1 18-TO-68R1-F

PME5
2100 3099
21

00

3101-1396

3

100-25

0

1707-6

01707-61605

1-00603

1-01213

201

5-1

I8-TO-26R 1-F

3099

57
1604

002

-F

A561
A5AICl

A5AlC7

A5AlC3
A5AlC4
A5AlC5
A5AlC6

A54lC7
A5A1 C8
A5AlC9

A5A 1C

10

A5AlCll
A5AlC12

A5AlC13
A5A1 C14
A5AlC15

A5AlC16

01707-6340
0150-0115

0170-0049

0160-7704

0121-0483
0121 0483

0160-7757

0160-7757

0121.0483
0121

0483

01

50-0074

0

160-22

67

0140-0130

01 21 -0483
01 21-0483

0160-7740
0

160-72

54

2

1

See introduction to this section

ATTENUATOR ASSY
CAPACITOR.FX0. 27PF+-10% 5OOWVOC

1

CAPACITOR. FX

1

CAPACITOR. FXO.

4

CAPACITOR, VAR, TRMR, PSTN, .5-3PF.

8

CAPACITOR, VAR. TRMR. PSTN. 5-3PF.
CAPACITflR.FX07 lOPF+-5% 500YVOC

CAP AC
CAPACITOR, VAR, TRMR, PSTN, .5-3PF;

CAPACITOR, VAR.TRMR. PSTN. .5-3PF;

1

CAPACITOR.FXn. 7PF+-.5PF
CAPACITOR. FXD. 16PF+-5%

7

CAPACITOR.FX0. 77OPF+-5% 500UVOC

1

CAPACITOR, VAR, TRMR, PSTN, 5-3PF.­CAPACITOR, VAR.TRMR. PSTN. 5-3PF
CAPACITORvFXO. 2PF+-.25PF

1

CAPACITOR.FXD. 7.5PF+-.25PF

1

IT

OR.

FX

0.

-0

1

OOPF

0.

10

22UF+-

1

OX

6OOWVOC

+-

5

%

300

WVOC

PF+-5X 5OOWVDC

X

500WVDC

500W

VOC

%

5OOUVOC

X

for

ordering information

50OUVOC

28480
28480

28480
28480
72982
72987
28480

28480

72982
72982

78480

28480

72982

72 9 82
72982

28480

78480

01707-63401

01

50-01

15

0170-0043
0160-2204

536-

016

536-016

0160-2257
0160-2257

536-

016

536-016

0150-0074
0160-2267

TYPF

654-014

536-016
536-016

0160-2240

0160-2254

(C811R.D

6-11

Replaceable

Parts

Table

6-2.

Replaceable Parts (Cont'd)

Model

1707B

Reference

Designation

A5A

IC

17

A5AlC18
A5AlC19

A5AlLl
ASAIL?

ASAIMPI
A5AlMP2
A5AlHP3
A5AlMP4
A5AIR1

A5AlR2

A5AlR3

A5AlR4
A5AlR5
A5AlR6

ASAIR7
A5AlR8
A5AlRS

A5AlRIO
A5AlRll

A5A

1R

12

A5AlR13

A5AlR 14
A5AlR15
A5AlR16

A5AlR17

18

A5AlR

A5AlR19

A56151

A5AlS7

A5A7

A5A3

A5A3HP1

A5A3MP2

A564

iP Part Numbe

0160-7258

01 21 -0483
0121-0483

9100-3196
9100-3195

0170

1-00605

0

1701-00607

0170

I-

61

20

8-3

109

00

0344

I

0

1

I

17506-64A

0757-0997

0757-0346

0698-3430

0698-3431
0684-0771

0698-6400

0698-6634
069
0698-3429

0698-547

0698-3432

0684-1

0684-inoi
0698-3263
0698-6654
0757-0344

0698-401

07

57-

2100-3098
3100-3018

01707-63401

01701-61616

01701-01206

01

701-01207

01707-66504

QtY

1

1

1

7

2
2

1

1

3

1

1

1

1

1

I

3

1

1

2

7

1

1

1

1
1

1

Description

CAP ACI

TOR.

FXO.

I1

PF+-5X

500W

CAPACITOR, VAR. TRMR, PSTN, .5-3PF:
CAPACITOR, VAR, TRMR, PSTN, .5-3PF;

COIL:^^

COIL:50 UH

SH1ELD:SWITCH OUTER

SH1ELD:SUITCH INNER

BRACKFT ASSY :SWITCH
HOL0ER:TRIMMFR

RFSISTOR.

RFSISTOR. FXO.
RESISTOR. FXO. 21.5

RESISTOR.

RFSISTOR. FXD.
RFSISTOR. FXO. 900KlP .25Y F TUBULAR

RESISTOR.
RFSISTOR.

RESISTOR. FXD.
RESISTOR, FXO.

RFSISTnR.

RESISTOR. FXO.
RESISTOR. FXD.
RESISTOR. FXO. 500KlX
RESISTOR. FXO. 800Klll: .25W
RFSISTOR. FXO.

RESISTOR. FXO. 250KlX
RFSISTOR. FXD.

RESISTOR,

N-S-R. PART OF MP3.
SW1TCH:ROTARY
SAME AS A5A1. USE PREFIX A5A2.
ATTENUATOR ASSV

DELAY LINF

8RACKET:OELAVv LOWER
RRACKET:OELAY. UPPER

BOARD ASSV:VFRTICAL PREAMPLIFIER

(SAME

UH

FXO. 39.2 OHHlX

FXO. 23.7

7-7

990KlX

FXD.

10.1KlX .125U

FXO.

FXO. 76.1

lHlX

VAR,

5K

20% MC SPST

3

AS A5A1)

10

OHMlX

OHY1%
OHWlX

OHMlOX

19.6

DHHlX

111KlX

OHHlX

10

OHMIOX

10

OHMlOX

-25U F TUBULAR

lMlX

.25W F TUBULAR

SECTION 9 POSITIflN

VOC

.5W

MF

-125Y F TUBULAR

-125W

F

-125U

F

-25W CC

.25W

F

TUBULAR
F

TUBULAR

-125Y

-125Y

.25W

CC

.?5U

CC

MF TUBULAR

F

TUBULAR

SW

F
F

-125W F TUBULAR

.125W

.125W F TllRUlAR

Mfr
Code

28480

72982

9

82

72
78480
28480

78480

28480

28480

28480

30983

24546

03888

03888

01121

30983

30983

16299

03888
74546

0388R

01121

01121

30983

30983
24546

16299
24546

28480

28480

28480

78480

18480

28480

50439

Mfr Part Number

0160-2258

536-016
536-016
9100-3196

9

100-319

5

01

701-00605

01701-00607

01

70

1-61

Xlf

2-TO-39R2-F

2100-3098

701-01206

201

TO-10

T

0-7

8

12-F

5 03 -F

175OA-64A
MF

C4-1/8-TO-lORO-F
PME55-118-TO-21R5-F

PHE55-118-TO-23R7-F
C827G1
MF52C114-TO-9303-F

MF52C114-T9-9903-F
C4-118-

PME55-1 /E-TO-19R6-F
C4-1/8-TO-1113-F
PMF55-1 I8-10-26Rl -F

c8inoi

CBlOOl
MF5C118-TO-5033-F

MF4C118-TO-8003-F
C5-1f4-TO-1004-F

C4-118­C5-114-TO-1004-F

3100-301

01707-63401

01701-61616

01

01701-01207

01707-66504

A5A4C1

A5A4C7

A5A4C3
A5A4C4
A5A4C5

A5A4C6
A5A4C7
A5A4C8
A5A4C9
A5A4C10

A5A4Cll
A5A4C12

A5A4C13
A5A4C14
A5A4Cl5

A5A4C16
A5A4Cl7
A5A4Cl8
A5A4C19
A5A4C20

A5A4C21
A5A4C22
A5A4C23
A5A4C24
A5A4C25

A5A4C26
A5AU77
A5A4C28
A5P4C29
A5A 4C

30

A5A4C31
A5AU32
A5A4C33
A5A4C34
A5P4C35

..

01M)-3443

01

60-3443

0160-7261
0160-3443
0180-1746

01

60-2261

0160-3443

01

60-3443

0160-3443

0160-3443

0180-1

746

01

60-3443

0150-0093
0160-3443

0180-1

746

0150-0093

0160-3443

0180-1746

01

60-3443

0160-3443

0160-3443

0160-3443
0121-0451

0171-0455
0160-3443

0160-7264
0160-7764
0160-2764

0160-7764
0180-0197

0160-7443

0160-2707
0160-2141

79

CAPACITOR.FXD. .lUF+80-7OX 5OWVDC
CAPACITOR.FXD. .lUF+80-70X 5OWVOC

CAPACITOR.FX0. 15PF+-5X 50OUVOC
CAPACITOR.FX0. .lUF+80-2OX 5OWVOC
CAPACITOR-FXO. 15UF+-lOX ZOVDC TA-SOLI0

CAPACITOR.FXO.
CAPACITOR. FXO. .1UF +80-70%
CAPACITDR.FX0. .lUF+80-2OX
CAPACITOR. FX
CAPACITOR.FX0. .lUF+80-20X

CAPACITOR-FXO. 15UF+-lOX 2OVDC TA-SOI.ID
CAPACITflR.FXD.

CAPACITOR.FX0.

4

CAPACITOR.FX0. .lUF+80-20% 5OWVOC
CAPACITOR-FXO. 15UF+-lOX ZOVOC TA-SOLID

CAPACITOR.FX0. .01UF+80-20% 100WVDC
CAPACITOR.FXD. .IUF+80-20% 5OWVOC

NOT ASSIGNFO
CAPACITOR-FXD. ISuF+-lOX 7OVDC TA-SOLID

CAPACITOR.FX0. .1UF+80-70X 5OWVDC

NOT ASSIGNED
CAPACITORIFXD. .lUF+80-20% 50WVOC

CAPACITDRIFXO.
CAPACITOR.FX0. .lUF+80-20% 50WVDC
CAPACITOR. VAR.

1

CAPACITOR, VIR.

7

CAPACITflR.FX0. .IUF+80-70% 50UVOC
CAPACITOR.FX0. 20PF+-5%

6

C.APACITOR.FX0.

c

AP

AC I TOR.

CAPACITOR.FX0. 20PF+-5X 5ODUVDC

CAPACITOR-FXO. Z.ZUF+-lOX 2OVOC rA

8

CAPACITflR.FX0. .lUF+80-?0% 5OYVDC

CAPACITOR. FXO. 75PF+-5% 300UVDC

2

CAPACITOR.FX0. 680PF+-70X 1OOOYVOC

I~PF+-~X

0.

.

lUF

+EO-

.

IUF+80-20% 5OWVOC

.OIUF+80-2OX

.

lUF+80-2OX 50UVDC

TRMR.

TRYR.

ZOPF+-5X 50OUVOC
2

OPF+-~

FXD.

70X

AIR. 1.7111PF

AIR. 1.9115.7PF

x

~OOWVDC

5OWVDC
50WVOC
50UVOC
5OUVOC

100WVOC

500WVDC

SOOW

vnc

See introduction to this section for ordering information

28480
28480

28480
28480

56289

28480
28480
78480

28480
28480

562

89

28480
78480

28480
56289

28480

28480

567

89

28480

28480
28480
28480
749

70

74970

28480
28480

28480
28480

28480
567 89

28480
28480

28480

0160-3443
0160-3443

0160-2261
0160-3443

15

00

156

X902087

0160-2261
0160-3443
0160-3443
0160-3443

0160-3443

1500

156

X902082

0160-3443

0150-0093

0160-3443

I

5

OD

I

56 x902

082

0150-0093

0160-3443

1500156X902082

0160-3443

0160-3443

0160-3443

0160-3443

187-01

06-005

187-0109-005

0160-3443

0160-2764
0160-2764
0160-2264

0160-7264

1500725X9020A2

0160-3443

0160-2202
0160-2141

6-12