Tektronix SC502 Instruction Manual

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SC

502

OSCILLOSCOPE

Francais

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97077

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AT

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OSCILLOSCOPE

Francais

INSTRUCTION

FOR

THIS

SC

Deutsch

Serial

CHANGE

MANUAL

502

Number

INFORMATION

.

S

*?A

MANUAL

First

Printing

Revised

APR

APR

1986

1975

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CopyrightC1975,
Contents

form

of this

without

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istered

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are

reserved

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foreign

TEK,

trademarksofTektronix,

in

A

U.S

.

.

©1975,

Tektronix,

1980

publication

written

permissionofTektronix,

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SC

502

LIST

OF

ILLUSTRATIONS

LIST
OPERATORS

SERVICE

Section1SPECIFICATION

Section

Chapitre

TABLES

OF

SAFEY

SAFETY

2

OPERATING

Introduction.. . .

Basic
Controls

General
Basic

2 INSTRUCTIONS

Introduction..
Fonctionnement..

Commandes

Fonctionnement
Application

. . . .

SUMMARY

SUMMARY

Operation

and

Operating

Oscilloscope

TABLE

. . . . . . . . . .

. . .

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

. . .

. . . . . . . . .

. . . .

. . . . . . . . .

INSTRUCTIONS

. . . .

. . . . . . . . . .

Connectors

Information

Applications

D'UTILISATION

. . . . ...

. .

et

connecteurs

. . . . . .

. . . . . .

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

. . . . . . .

. . . . . .

. . . . . .

. .

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OF

Page

. . .ii
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. . .

. . .v

. .

2-1

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. . .

. .

. . .

.

. . . .

. . . .2-2

CONTENTS

ii

iii

1-1

2-1

2-1

2-2
2-5

2-9

2-1
2-1

2-5
2-9

THE

FOR
AVOID
ANY

TAINED
YOUARE

Section

Section4CALIBRATION

Section s

FOLLOWING

USE

BY

PERSONAL

SERVICING

IN

OPERATING

QUALIFIEDTO

3

THEORY

Performance
Adjustment

MAINTENANCE
CRT

Circuit

WARNING

SERVICEINSTRUCTIONS

QUALIFIED

OF

Replacement

Board

PERSONNEL

INJURY,

OTHER

INSTRUCTIONS

DO

OPERATION

PROCEDURE

Check

Procedure

. . . . . . . . . . .

Removal

THANTHAT

. . . . . . . . . .

NOT

DO

SO

.

. . . . . . .

. . . .

. . . . . .

ONLY.T

PERFORM

CON-

UNLESS

. . . . . . .

. . . .

. . . . ..4-1

. . . . ...

. .

. . .

. . . .

. . . . .

ARE

.3-1

. .

O

Page

4-1

4-10

5-1
5-1

5-1

Kapitel2

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;2JR

BEDIENUNGSANLEITUNG
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Grundbeschreibung
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. . . ...

. .

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

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

:3

4,49

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

.

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

. . . . . . ... .

. . . . . . ...

. . . . . . . . .

Bedienung

Anschliisse.2-2

. . . . . .

. . . . . ...

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

. . . . . . ...

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.

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Seite

. .

.

. .

.

.
:

.

. . . .2-

. . . .

2-1
2-1

2-5
2-9

2-1
2-1

2-9

Section6OPTIONS

Section7REPLACEABLE

Section8DIAGRAMS

Section9REPLACEABLE

1

5

. .

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

ELECTRICAL

AND

ILLUSTRATIONS

MECHANICAL

. .

PARTS

PARTS

. . .

. .

6-1

7-1

8-1

9-1

REVAPR

1982

SC

502

Fig

.

No

.

The

SC

502

Oscilloscope

2-1
2-2
2-3

2-4

2-5

2-6
2-7

2-8
2-9 High-resolution

Plug-in
Controls

Measuring
waveform

Measuring
respecttoa

Measuring
points

Measuring
Measuring

pulses
Measuring

measurement

installation/removal..

and

connectors

peak-to-peak

. . .

. . . . . . . . . . .

instantaneous

reference

time

on a waveform.. . . . . . .

risetime

time

. . . . . . .

phase

with

LIST

voltage

voltage..

duration

difference

. . . . .

phase

(period)

. . . . . . . . . .

. . . . . . . .

difference

difference

increased

OF

. . . . . . . . . . .

. . . . . . . .

. .

. . . . . . . . . .

of a

. . . . . . . . .

do

voltage

between two

. . . . . .

sweep

with

. . . . . .

between

. . . . . .

. . . . . .

. . . . .

. . . .

rate.2-14

ILLUSTRATIONS

Fig

.

Page

vi

2-1
2-3

2-9

2-10

2-11
2-11

2-12
2-13

No
3-1

3-2

5-1

5-2

5-3

5-4

5-5

.

Input

preamplifier

showing
Time

pointsinthe high-voltage
Replacingthecathode-ray

board
Cross

position
crt

Variable
Time

Location
pads

Input-Output
Rear

signal

relationshipofwaveformsatthree

removal
sectional

of front

. . . . . . .

jumper

Interface

. . .

Trigger

placement

of auxiliary

. . . . . .

current

.

view

crt

Hold Off-Variable

. .

Assignments

Connector

detailed

. .

. . . . .

support,

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

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

block

paths

regulator

tube,

. . . . . . .

showing

. . . . . . . .

Z-axis

For

. . . . . . . .

diagram

... . . . . . .

and

placement

crt

shield

input

solder

Plug-In

. . ..3-7

circuit

. . . .

and

.

. . .

Sweep

. . . .

.

. . . .

. . .

Page

3-1

5-2

5-3

5-3

5-4

5-5

Table

No

.

1-1
1-2 Horizontal Deflection

1-3
1-5

1-6
1-7

1-8

Vertical

Triggering
Calibrator

Power
Rear

Environmental

Deflection

System

. . . . . .

Supplies.. ...

Interface

System

. . . . . .....

. . . . . . . .

LIST

. . . . . . . .

System

. .

.

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

. . . . . ...

. . . . . . . . . . . ..1-4

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

. . . . . . .

. . . . . . . . . . .

. .

. .

O

Page

1-1
1-3

1-5
1-5
1-6

1-7

F

TABLES

Table

No

.

1-9
3-1

4-1
4-2

4-3
4-4

Mechanical
Channel
ListofTest

Vertical
Tolerance

Horizontal
Volts/Div

Switch

Deflection

. .

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

Logic

Equipment

Accuracy

. .

. ...

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

Deflection

Attenuator

Check

. . . . .

Table

. . . .

. . . . .

Requirements

and

Accuracy.. . . .

. . . . . . . .

. . .

. .
. .
. .

Page

1-7

3-2
4-1

4-2
4-6
4-12

REVAPR

1982

SC

502

OPERATORS

The

general

is

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manual where
summary

Terms

CAUTION
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WARNING

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Terms

CAUTION
mediately accessibleasone
hazard

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REVAPR

.

product

power

1982

to

SC

502

Do

Not

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SERVICE

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first

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SUMMARY

PERSONNEL

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Summary

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source

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REV

APR

1982

iv

SC

502

CONSIGNES

Ce

rappel

des

consignes
utilisateursetau
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&

cheque
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te

Termes

Les
constancesouop6rations
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risque dventuelded6t6rioration

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SC

502

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ADD

APR

1982

VI

SC

502

SICHERHEITSANGABEN

Die

allgemeinen
Angaben

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In

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1982

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APR

1982

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APR

1982

502

SC

The

502

Oscilloscope

SC

REVAPR

1982

SPECIFICATION

Section

1-SC

502

Performance

The

electrical

with

the

following

1.The

2

3

Deflection

Calibrated

Variable

instrument

ambient

The

instrument

.

ment

whose

Allow twenty minutes

.

specified
storageina

Characteristics

Factor

Range

Conditions

characteristicsinthis

conditions

temperature

limits

accuracy;sixty

high

Range

:

must have

between

mustbeinanon-condensing

are

described

warm-up

humidity

specification

been

+200C

under
time

minutes

after

(condensing)

1

mV/div

sequence
At

least2.5to1

are

valid

adjustedatan

and

+300C

environ-

Environmental

for

operation

exposure

environment

VERTICAL

Performance

to

.

20

V/divin14

.

to or

Table

DEFLECTION

istic

.

.

gether

to

plete

.

performanceofa

1-1

Requirements

stepsina

Any

conditions that

are

expressly

The

electrical

with

statement

SYSTEM

1-2-5

statedaspart of

and

their

related

of

calibrated

Continuously
steps
deflection

are

uniquetoa

environmental

validation

the

electrical

instrument

Supplemental

variable

and

extends
factor

particular

that

characteristic

performance

procedures areacom-

and

.

Information

between

maximum

to at

least

character-

.

limits

environmental

calibrated

uncalibrated

V/div

50

.

to-

DC

Balance

(+15°C

Accuracy

+15°C

0°C

Linearity

HF

Bandwidth

5

2

1

to

+35°C)

to

+35°C

mV/divto20

5

1

mV/div to2mV/div

+50°C

to

mV/divto20

Risetime
Typical

aberrations

mV/div At
mV/div At

V/div

V/div

(calculated)

step

response

0.5div+1mV.

±2%

±5%
Derated
0

as a
graticule

At

accuracy

div

.1

or

div

2

limits

least15MHz

least10MHz
least

5

less

signalispositioned

.

MHz

byan

additional1%.

of

compressionorexpansion

between

.

.

.

the

23ns

or less

t

2%,

3%

limitedto5

.

peak-to-peak

divisions

major

less.Signal

or

.

REV

FEB

1982

I

I





1





Specificatlon-SC

Characteristics

Response

AC

LF

Common
(CHI-CH2

Channel

Displayed
Typical

warm-up,

CHIorCH2

Mode

Display

Isolation

Noise

Trace

constant

mV/divto20

5
1

mV/divto2

Impedance
Maximum

Drift

Input

Input

502

Rejection

Mode)

(after1hour

line

voltage)

V/div

mV/div

Voltage

Ratio

Table

1-1 (cont)

Performance

less

or

withaccoupling

factor

settings

display

.

peak-to-peakat1mV.

.

10Hz
At

least30to1at1MHzorless

deflection

2%orless

15

MHz

0.2mVorless

1

M11

±1%

Requirements

.

related

with

crosstalk

to

same

Supplemental

1Hzor
Common

sions,10div
probes
probe

Input

I

less

Less

Less than0.3

Paralleled

350V(dc+peak
peakacat1kHz

recommended

250Vto10kHz

100

less

mode

CMRR

compensation

signal

than0.01%

than0.1

nominally

kHz

.

Information

with

X10

probe

.

signal

limitedto±

.

peak-to-peak

above

related

crosstalkistypically

.

div/hr.and0.03
mV/hr.and0.1

ac),

or less

peak-to-peakaclimit

derating

With

1

kHzislimited

matching

mV/°C

47pF

by

.

700Vpeak-to-

.

Above1kHz

to 25Vabove

5

X10

.

div/°C

divi-

by

.

.

is

Position
Delay

Line

Display

CHIorCH2
ALT

CHOP
CHI

Trigger

Range

Modes

minus

View

CH2

At

least±6

Selected

I

Alternates
other

Chops
Displays

and

Triggering

selected
button

divisions

inputisdisplayed

display

sweep

display

algebraic

CH2

.

waveformisdisplayed

Display

depressed

is

.

of

of

CHI

difference

Mode

.

.

CHI

and

when

.

and

CH2

CH2

.

between

instead

TRIG

every

CHI

VIEW

Nominally
leading

Chop

Triggering

of

waveformisnominallyatCRT
center

140ns.

edgeofthe

least

rate

at

pointonthe

.

Permits

triggering

250kHz

displayed

viewing

waveform

.

vertical

the

.

REV

FEB

1982

HORIZONTAL

1-2

Table

DEFLECTION

SYSTEM

Specification-SC

502

Characteristics

Sweep

Rates

Calibrated

Variable

Accuracy

+15°C

0
50

0.5ws/divto0.2ks/div

0°Cto+50°C
Linearity

Range

Range

to

+35°C

s/divto0.1s/div

.5

ms/divto1

s/div

Performance

0.5s/divto0.2ps/divin20
sequence.X10

fastest

At

least2.5

Derate

calibrated

Unmagnified

accuracy

to

±3%

±2%

±3%

Horizontal

1

rateto20

.

by an

Requirements

additional

stepsina

Magnifier

ns/div

.

Magnified

±4%
+3%
+4%

1%

1-2-5

extends

X10

.

Supplemental

Continuously
sweep
uncalibrated
The

variable

selectable

Rate or

Measured
sions
fied

sweep

Typically5%(0.1div)orless
timing
center8divisions

variable

rates

and

rate to at

control

between

Variable

over

excluding

beyond

over

any2div

Information

between

extends

Holdoff

center8displayed

the

.

slowest

least
internally

is

Variable

the

functions

first50ns
the

100th

internal

calibrated

1

.25

s/div

Sweep

.

and

magni-

division

change

within

.

divi-

.

in

the

Registration

MAG

Length

Sweep
Position

External Horizontal

Range

Fully

CW

Fully

CCW

Bandwidth

Deflection

Difference

Phase
Input

Impedance

Maximum

Factor

Input

Input

Voltage

divisions

0

.5

At

least10.0

Startof1

center

10th

leftofcenter

At

50

3° or

1

MS2

ms/div

graticule

division

feasts

2

mV/div±5%

lessto50

±2%

or less

divisions

sweep

line

of1ms/div
graticule

MHz

.

.

kHz

.

.

.

positionstoright

.

sweep

line

.

.

positions

of

to

Low
trigger
withaccoupling

Paralleled
350V(dc+peak

peak

frequency

coupling

at1kHzorless

response

selection,

.

nominally

determined

50Hzor

by47pF

ac),

350Vpeak-to-

.

by

less

.

REV

FEB

1982

Specification-SC

502

Table

TRIGGERING

1-3

SYSTEM

Characteristics

Trigger
(Minimum

Sensitivity

peak-to-peak

quired)

MHzorless

5

MHzto15

5

Coupling

DC

AC

AC

LF

REJ

Trigger Level
(Normal

modes
External

(Same

and

only)

Trigger Input

as

Impedance

Maximum

signal

MHz

Range

Single

Sweep

Ext.Horizontal

Input

Voltage

re-

input)

CHI

0

1

At

least±8.0

±1.2Vexternal

least

1

MS2

±2%

Performance

CH2

or

div

.4

div

.0

divisions,

.

Requirements

External

150

CH1orCH2,

.

60

mV
mV

and

at

Supplemental

Minimum
dc

.

Minimum

low50Hz

Minimum
low 5

kHz

Paralleled

V

(dc+peak

350

at1kHz

peak

requirements

signal

requirements

signal

.

requirements

signal

.

nominally

or less

Information

47pF

by

ac),

350

.

extend

increase

increase

.

V

peak-to-

to

be-

be-

Modes

Auto

Normal
Single

Holdoff

0

Time

s/divto1

.5

(Auto

Sweep

0.5ms/divto10
ps/divto0.2us/div

5

Variable

Holdoff

button

ms/div

gs/div

Range

out)

free-runsinthe

Sweep

triggering

Sweep
Upon

signal

will

triggering,
not run again
button

.

.

run unless

not

unless

sweep

absenceofa

triggered

runs

once

reset

by

.

and

pushing

will

Reset

TRIGGER
varies with
peak
quencies
minimum

Measured

Select

Nominally10ms
Nominally
Nominally<2,us
At

LEVEL

the

range

.

below

signal

at

Auto

100;ts

least20to

triggering

Not

recommended

30
requirements

rear

interface

mode

.

.

.

range.The

1
controlisinternally
the

Variable

functions

Sweep

.

range

automatically

signal

Hz.Below

and

free

selectable

or Variable

peak-to-

for

100

increase

20B-21B.

pins

run

sweep

Variable

between

Holdoff

fre-

Hz

.

.

REV

FEB

1982



Characteristics

CRT

Type

Graticule

Phosphor
Acceleration
Geometry

Potential

and

Orthogonality

(exclude4corners)

Intensity

Control

Function

Table

1-4

CATHODE

RAY

TUBE

Performance Requirements

Bowingortiltis0.1divisionorless
respecttograticule

lines

Table

.

1-5

CALIBRATOR

with

Supplemental

T3350

.

8X10

divisions

(0 .64

cm/division)

P31

.

12kV(-1.9kV

When

Intensity
clockwise
lected,
visible

.

the

and

sweep

Specification-SC

Information

with0.25

inch/division

.

cathode)

.

controlisrotated

Single

Sweep

baseline

modeisse-

spotisclearly

502

fully

Voltage
Frequency
Rise

and

Output

+20V

Impedance

-

Characteristics

Falltimes

Characteristics

0

.6

Twice

Performance

V

peak-to-peak,

the

power

Requirements Supplemental

±

I%

line

frequency

Table

POWER

Performance Requirements

.

.

1-6

SUPPLIES

than

Less
Approximately

Supplemental

20.0V ±0

-20V -20.0V ±0
+5V

-5V
+70

-70

Power

+33.5V

V
V

Module

Supply

Currents

+5

.07V±0

-5

.00V±0

+70V-3V,+4

-69V

+3V,

Typically

420mA.

1

As

.05V.

.05V.
.08

.20

.

120S2.

V

.

V

.

V

-4V

Information

Information

.

Fuse

REV

-33.5V
+11.5V

25

VAC

Data

F800
F970

FEB

1982

Typically
Typically

400mA.
400mA.

Typically10mA

0

.3A,

3AG,

slow blow

0

.75A,

3AG,

.

fast

blow

.

.

1-5

Specification-SC

502

Table

1-6

(cont)

Characteristics

Mainframe

Recommended
Interval

Warmup

Time

Characteristics

External

(Delayed)

Power

Adjustment

Line

Gate

Draw

Input

Performance

REARINTERFACE

Performance

Requirements

Table

1-7

Requirements

Supplemental

29

Typically
than1watt

POWER
1000

20

minutes,60minutes

or

storage

environment

watts
with

OFF

.

hoursor6

high

in

.

Supplemental

Pins

2313-2213.ECL

ating

between

nally

100S2.

Upon

sweep

SELECT

will

from

sweep

state
GATE

transition
will

truncate

Information

or less operating,

mode

switch

set

months

.

after

humidity

exposure

(condensing)

Information

balanced

+5Vand

input

ground

.

transitiontological

free-run

once

and

INPUTisgrounded.A

logical

high to

low

if itisrunning

to

oper-

Nomi-

reset

state

.

less

to

high

if

Gate

Select

Intensify

CH1

Trigger

Triggered

Holdoff

Ramp

Output

Output

Input

Input

Gate

Output

Output

Pin

2413.Ground(1kitorless)

external

signal

operation

Pin
ing
low
tion.Open
state

Pins

gate

as the

.

circuit

Open

.

1913.Single

between

state

+5

causes

ended

V

circuit

.

2713-2813.Analog

sweep

causes

ECL

and

ground.A
noticeable
defaults

output
resistanceofapproximately
tivity is

typically50mV/div

is

typically4MHz

Pins

2513-2613.ECL

ating

between

high

state

and

sweep

Pins

2013-21

ating

between

Pin

18A

.

Analog

ramp.Typically0V

sweep

V

.

+6

.4

Output

approximately1kit.Not
sweep

rates

.

+5Vand

indicates

can

not be

B

.

ECL

+5

output

resistance

faster

balanced

ground

holdoff condition

a

triggeredorgated

balanced

V

and

of

recommended

than1ps/div

selects

controlling

normal

input

operat-

intensifica-

to logical

with

1000.
bandwidth

and

output

A

.

output

ground

.

positive

to at

least

is

.

the

logical

high

source

Sensi-

oper-

logical

.

oper-

going

at

REVFEB

198

2

Table

1-8

ENVIRONMENTAL°

Specification-SC

502

Characteristics

Temperature

Operating
Non-operating

Humidity

Altitude

Operating
Non-operating

Vibration

Shock

Transportationc

With

power

module
RefertoTM
Without

500

power

.

power

module

module

.

30

major
Qualified

specifications

.

0°C

-55°C

95%
75%
45%

4.6km
15km(50,000
0

5Hzto

shocksineach

1A-B-1

+50°C

to

to

RH,
RH,to+40°C
RH,to+50°C

(15,000

.38mm(0

55

g's(1/2

axes, 18

under

and

+75°C

0°Cto+30°C

.015')

Hz,

sine)11ms

1A-B-2

.

.

.
.

ft)

.

ft)

.

peak-to-peak,

75

minutes

duration,
direction
total

shocks

National

.

.

.

along

.

Safe

Description

3

3

Transit

Meets

MIL-T-288008,

Exceeds

Exceeds

Exceeds
stalledinqualified

Meets
stalled

Association

MIL-T-288008,

MIL-T-288008,

MIL-T-288008,

MIL-T-288008,

in

qualified

Preshipment

class5.

class5,when

power

class5,when

power

Test

class5.

class5.

modules°

modules°

Procedures

in-

.

in-

.

Finish

Net

Weight

Nominal

REV

FEB

Characteristics

Dimensions

198

2

Table

MECHANICAL

Anodizedaluminum

2.5kg(5.56

in.long

12

.2

Ibs)

(30

.

.988

1-9

panel

cm)X5

and

chassis

.30inwide

Description

.

(13.46

cm)X5.0in.high

(12

.700

cm)

Section

2-SC

502

OPERATING

INTRODUCTION

The

SC

dual

trace
compartments
Recommended
P6105,
selectable1Xor

P6105is10X

Installation

The

SC

ReferringtoFig.2-1, install

502

SC
the

POWER

Oscilloscopeisageneral purpose,15MHz,

502

oscilloscope

of

a

TM

P6062B,

.

502

MODE

indicator

probes

is
controltoALTtoapply

for

and

P6060

10X

attenuation

calibrated

lightonthe

designed

500

use

.

and

the Oscilloscope

to

operate

Series

with

The

while

readytouseasreceived

Power

the

P6062B

the

power.Check

front

panel

SC

in

Module

502

are the

probe

has

attenuation

and

turn

comes

INSTRUCTIONS

two

of

the

that

on

.

a

.

.

Turn

in,
circuitry

A

brief

controls

the

Power

Module

otherwise,

damage

.

BASIC

descriptionofthe

and

connectorsisgivenonthe

off

before

may

occurtothe

OPERATION

functionofthe

inserting

following

the

plug-

plug-in

front

panel

pages

.

REVBAPR

198

Fig

.

.

Plug-in

2-1

0

installation/removal

.

Operating

Instructions-SC

502

The

vertical

behind
skirts

highlight the
selected.The
o'clock)
highlight

The

shaded
behind
sweep

rate

shaded

skirts

knob
not

force these

stops

.

Setup

TM
SC

the voltage

Information

1.Set the
500

Series

502

intoaPower

Power

Module

Power

Module

2.Set

theSC502

INTENSITY
FOCUS

MODE
POSITION

CH

1

CH

2

CH1VOLTS/DIV

Variable

CH1AC-GND-DC

VOLTS/DIV

CH

2

Variable

CH2AC-GND-DC

POSITION

SECONDS/DIV
CAUSWPMAG
SINGL

TRIGGERING

COUPL

SWP

SLOPE

LEVEL

SOURCE

lightly

the

VOLTS/DIV

darker

behind

sensitivity

the

colored

the

SECONDS/DIV

when

areas

and

are

502

SC

PowerModule

connectedtoa

is

and

frequency

Power

(Horizontal)

shaded

basic

gray

the

the

SWP

additional

for

operator

knobs

MODE

Module

switch

controls

NOTE

areasonthe

and

SECONDS/DIV
sensitivity
shaded

VOLTS/DIV

whena1OX

area

beyond

switchtoPWR

compartment.Make

requirement,

.

areas

(locatedat10

knob

MAG

is

activated.These

values printedonthe

convenience

their

switch

to

power

follows

as

Fully

ccw

As

is

1

CH

Midrange
Midrange

.2

Fully

cw

DC

.2

Fully

cw

DC
Midrange
5m

Fullycwand
Off (Button

Midrange

CH

1

AUTO

front

panel

knob

and

sweep

(locatedat2

knob

probeisused

indicates

off

source

then

:

skirts

o'clock)

only.Do

mechanical

Turn

OFF

.

and

install

sure the

that

turnonthe

pushed

out)

rate

the

meets

in

.

the
the

5.Adjust

trolssothat

left

the

6.Adjust

display

7.Disconnect

verticallysothatitcoincides

of

the

Calibration

8.Move

and

reconnect

connector

9.The
complete

six
frequency)

Trigger

10.Press the

triggering

horizontal

External

11.Connect
signaltopin
Z-axis

12.Slowly
clockwise
and

brightened

correspond
squarewaves

This

procedure

explained
tion

are

the

channel

the

display

edgeofthe

the

FOCUS

over

the

entire

the

graticule

input)onthe

completes

discussed

.

Check

the

trace1.5

the

.

display

View

waveform.The
graticule

Intensity

until

here,oroperations

shouldbe3

cycles

shown

TRIGGER

a5V,1

24A

(ifithas

rotate
the

segments.The

with the

.

for

the

horizontally

trace

the

under

is

graticule

control

trace

input

calibrator signal to

(five

centerlineisthe

Input

rear

the

appearstobe

description

502.Instrument

SC

and

horizontal

centered

.

forasharp,

length

signal
with the

divisions

divisionsinamplitude

complete

.

VIEW

startofthe

kHz

sine-waveorsquare-wave

been

connected

interface

INTENSITY

tops

of

which

General

POSITION

vertically

.

and

position

center

horizontal

below

graticule

the

cycles

for50Hz

button

and

waveform

triggering

as the

connector

control

a

seriesofdimmed

brightened

the

sinewaves

the basic operating

of

operations

further

need

Operating

con-

and

starts

at

well-defined

the

trace

line

center

CH1input

with

line

observe

.

Information

the

at

the

point

.

external

counter-

segments

not

explana-

or

.

Advance

3

.

the

desired

graticule

4.Connect

connectortothe

2-2

viewing

center

the

INTENSITY

level.The

.

a

1X

probe

CH1input

control

should appear

trace

or

test

connector

until

lead

CONTROLS

the

trace

is at

near the

the

from

.

CAL

FOCUS

tainingawell

INTENSITY
ness

.

AND

Control.Provides

defined

Control.Controls

CONNECTORS

display

adjustment

.

the

display

REVAAPR

for

ob-

bright-

1980

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

J[ti~7a~~~

SC

5172

OSCILLOSCOPE

8W?15MHi

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OperatingInstructions-SC

5®2

VOLTSlDIV

CH

2

VOLTS/DIV

_

SECONDS/DIV

POSITION

1878-a2

REV

Fig.2-2.Controls

A

APR

1980

and

connectors

.

2-3



Operating

Instructions-SC502

TRIGGER
triggering

MODE
mode
and

PWR
off

CH1.
CH

ALT.Dual

VIEW

signaltobe

Switch.Selects

of

operation

off

.

OFF.The

.

Channel1is

2.Channel2is
trace

Pushbutton.Causes

and

internal

displayed
displayed

display

Displayisswitched

each

end

of

speeds
CHOP.Dual trace

sweep.Generally

above1ms/cm

displayofboth channels

Displayisswitched

>250

kHz.Generally

below1ms/cm
CH1MINUS

inverted

1

and

CH

CH2POSITION.Controls the

.

CH2.

algebraically

and

positionofthe displayed

VOLTS/DIV

tion

factor

control
deflection
the

lightly
Read
when

Switch.Selects the

ina1-2-5

(CAL)

mustbe

factor.Read

shaded

the

deflection

usinga10X

area

factor

probe

the

displayedonthe

the

vertical

the

turns

instrument

instrument

.
.

both

of

between

channelsatthe

used

.

between

used

The

the

channels

for

sweep

inputofchannel2is

addedtochannel1.

signals

.

vertical

sequence.The
fullycwfor
the

deflection

when

the

usinga1X

over

the

factor

.

sweep

crt

.

amplifier

on

power

channels

for

sweep

speeds

vertical

deflec-

variable

indicated

over

probe

grey area

is

at

Calibrator
square

calibrationofgain

POSITION
horizontallyonthe

EXT
horizontal
The
trolledbythe

.

CAL
control

rates
SECONDS/DIV
internal

.

holdoff
When

sweep

14

SECONDS/DIV
sweep
inputtothe

control
rates.The
indicates
colored
sweep

.

TRIG'D
the

triggered

Jack.Provides a

wave

at

twice

and

probecompensation

control.Positions

crt

.

TRIG/AMPL.External

amplifierorfor

external

amplifier

triggerACpushbutton

(Variable)/PULL

provides

between

X10

continuously

the

calibrated

switchorwhen

jumper,

time

the

CAL

rate/division

provides

.

knobispulled

is

increased by afactoroften

Switch.Selects

rateorthe

AMPL

horizontal

must be

areaat10

rate

READY

single

fullycwfor

light

shaded

the

unmagnified

area

o'clock

.

Indicator.The

sweepisarmedorthat

.

positive

the

line

input

external

ac-dc

SWP

a

mode

amplifier.The

under

shows

going

frequency

the

connector
trigger

couplingiscon-

.

MAG.The

variable

settingsofthe

selected

variable

out,

the displayed

horizontal

the

foranexternal

VARiable

calibrated

the

knob

sweep

light

rate.The

the

magnified

indicates

the

sweep

0

.6

for

.

display

for

signal

CAL

sweep

by an

trigger

sweep

skirt

that

V

.

.

is

2-

4

CAL

Variable

calibrated

calibrated

Input

vertical

settings of

Connector.Bnc

input

AC-GND-DC
amplifier
signals

amplifier,
signal.In
vertical
connector

ingofthe
position,

input

are capacitively

blocking the
the

amplifierisdisconnectedfrom

and

input

all

passedtothe

Control.Provides

deflection

factors

the

VOLTS/DIV

connector

signal

.

Switch.Selects

coupling.In

coupledtothe

do

component

GND

position,

grounded.This allows

coupling

components

input

capacitor.In

of

amplifier

the

.

variable

between

for

the

AC

the

inputofthe

the

input

un­the

.

switch

applying

vertical

position,

vertical

of

the

the

input

precharg-

DC

the

signal

are

POWER
SC

RESET
single

Trigger

Indicator.The

502

poweristurned

Pushbutton.Push

sweep

Mode

AUTO
and
no

AUTO
by

PushbuttonIn.

providesareference

adequate

Pushbutton

the

applied

adequate
SINGLE

pushbuttonisin

operation

Pushbuttons

triggering

trigger

triggering

Pushbutton

SWP

and

light

.

on

to

.

.

The

signal

Out.The

signal.When

signal,

the

AUTO

the

when

that

sweep

free

there

indicates

arm

Sweep

trace

.

sweepisinitiated

thereisno

thereisno

trace

In.When

pushbutton

@

MAY

the

in

runs

is

.

this

is

1980

Operating

Instructions-SC

502

out,

the

sweep

mode
sweeps

buttonispushed

trol

must be

the

COUPLing
of
circuit

AC
coupledtothe
circuit.DC

50
AC

trigger signal
trigger

LFREJ
coupled
rejected

attenuated

After

.

cannot

adjustment

made

out

position

Pushbuttons

the

trigger

.

PushbuttonIn.

kHz

are

Pushbutton

generator
PushbuttonIn.

tothe

operatesinthe

the

be

.
for

with

.

signaltothe

input

rejected

is

attenuated

Out.(DC)

are

input

signals

and

.

single

sweep

displayed

The

triggering

single

AUTO

the

Determinethecoupling

.

Signals

the

of

and

.

coupled

.

circuit

Signals
thetrigger

of

below

once,

runs

until

the

LEVEL

sweep

pushbutton

trigger

are

capacitively

trigger

signals

All

below

componentsofa

the

inputofthe

to

arecapacitively

circuit.DC

about5kHz

sweep

further
RESET

con-

operation

in

generator

generator

about

is

are

measurements.The
and

ten

horizontal

0

.25

inch.In
minor

five
timing are

be

made

Intensity

The

INTENSITY

the
so

the

probably
sweep

high-intensity
permanent

Display

If

a

FOCUS
of

the

should

addition,

divisions.The

calibratedsothat

from

the

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intensity of

control.This

displayiseasily

require

rates.Be

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well-defined

control,

internal

onlybedone

careful

spot

damage

evenatlow

astigmatism

graticule

divisions.Each

graticule

the

readjustment

may
tothe

display

by

is

each

major

vertical

accurate

.

displayonthe

controlisnormally

visible

but not

onlyaspotisdisplayed.A

when
burn

the

crtifallowedtoremaintoo

cannot

intensity

control

qualified

marked

with

eight

divisionis0

division

gain

measurements

crt

overly

for

different

crt

phosphor

be obtained

settings,

mayberequired.This

personnel

.25

divided

is

and

horizontal

controlled

is

bright.It

displays

and

adjustment

.

vertical
inch

by

into

can

by

adjusted

will

or

cause

long

with

the

.

SOURCE

the

signal

circuit

.

CH
signaliscoupled

CH
signaliscoupledtothe

LINE.(Both
depressed

is

coupledtothe

EXT
EXT

triggering

SLOPE
of

the

LEVEL

trigger signalatwhich

the

GENERAL

Graticule

The

graticuleoftheSC502

faceplateofthe

Pushbuttons.Determine

coupledtothe

1

PushbuttonIn.Asample

the

to

2

PushbuttonIn.Asam

1

and

CH

.)Asampleofthe

triggering

connector

circuit

provide

to

In.Signals

.

the

trigger

to

the amplitude

the

INFORMATION

internally

is

accurate,

Pushbutton

TRIG

Switch.Selects

trigger signal

Control.Selects

OPERATING

crt

the source

inputofthe

of

triggering

ple of

triggering

CH2pushbuttons

power

circuit

connectedtothe

are

coupled

rising

or

the

sweep

markedonthe

trigger

the

Channel

circuit

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the

circuit

signal

line

.

to

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slope

sweep

.

point

istriggered

parallax-free

.

.

of

the

on

1

2

.

To

check

turn

the

FOCUS

a

signal

displayed

correctly
trace

will

the

FOCUS

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Trace

Thisisan

be a

person

Intensity

Interface

Intensity

third

item

the

and
the

modulating
connector,
waveform

amplitude
on
turn

level,

normal
tion
levels

frequency

horizontal (X-Axis)

waveshape

the

setting of

the

on

and

brightness

can be

.

Maximum

for

proper

control

on

set,

the

vertical

come

into

control

internal

qualified to

Modulation

Connector

(Z-Axis)

electrical

of

of

signal,

changes

to

provide

required

the

displaytoa
about-5V

obtained

safe

rangeofthe

setting of

through

the

crt

screen.If

and

horizontal

sharpest
.

adjustment

modulation

the

applied

for

INTENSITY

level."Gray

focus

so

.

do

(Applies

has

been

phenomenatothe

coordinates

displayed

pin

to

the

intensityofthe

this

typeofdisplay

visible

trace

normal

by
input

brightness

will

turn

applying

voltageis+or-10

Z-Axis

circuit

the

Astig

control,

the

optimum

the

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portionsofthe

at

the

same

shouldbedone

and

onlyifpin

connected)

canbeusedtorelate

vertical

without

signal.The

24Aofthe

.

modulation

control.About+5V

level

the

display

intensity

scale"

signals

between

isdoto2MHz

slowly

setting

control

position

24A

of

(Y-Axis)

affecting

Z-Axis

rear interface

displayed

The

voltage

depends

fromanoff
off

from

modula-

these

V.Usable

with

is

of

only

a

will

a

.

2-

@

MAY

1980

5

OperatingInstructions-SC

502

Calibrator

The

internal
venient
sweep
adjusting
instruction

600

signal

timing.The

probe

mV,

within1%.

manual.The

signalistwice

Vertical

Displays

Single-Trace

used

for

the

.

input

channel

either

single-trace

be
desired

display
can

select

source

Dual-Trace

position
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sweepofthe
sweep

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sweep

calibratoroftheSC502

source

checking

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calibrator

basic

vertical

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displays.Apply

connector

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vertical

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the

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frequencyofthe

.

square-wave

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.

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SC

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1

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the

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switch

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display

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signal thatistime-related
the

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to

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signals

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of

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ly

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nected
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signal

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AC-GND-DC

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variable

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measurements

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switches

signal

signal

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the

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deflection

switches apply

are settothe

.

controls

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vertical

settings

variable

factor

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controls

to

cannot

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the

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reference (ground)
probe.The
best

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allow a

.

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of

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at

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signal

source

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coupling

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signal

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on

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1980

Operating

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In

theACcoupling

signalisblocked
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10Hz.

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waveform

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provides

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thatismuch

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applications.This
component

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occur

using ac coupling

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without the

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signal

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the

input

circuit

resistor.The

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the

through

.

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potential

ground
network.This

to

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appliedtothe
positionofthe

transients
amplifier

accidentally

input.The

by

-3dB
some

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tilt

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components.The

best

displayofsignals

larger

than

coupling

position

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a1Mil

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average

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current

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set

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power-line
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inacomplex

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signal
stable

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is

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rejection

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signaltoobtain

waveform

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display.An

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tracinginamplifiers,

circuits,

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the

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in

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instructions

for

dual-trace

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positionofthe

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.Anexternal

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time-related

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phase-shift

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all

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OperatingInstructions-SC

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triggering

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desired

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LEVEL

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the

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waveforms,

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SOURCE,

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point.

502

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same

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the

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when

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the

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the
the

2-

@

MAY

8

1980

Operating

Instructions-SC

502

Sweep

ten

portion
equivalent lengthofthe

Magnification

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sweep

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center

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can

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controltobring

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graticule.Then

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magnified

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is

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set to

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time

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of

by

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base.The

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by

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the

desired portion

the

magnified

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istobe

pull

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the

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.

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the

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.05

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sweep

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than

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the

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canbeused

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system

the

APPLICATIONS

the

techniques

applications

application

individual

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measurements,

be

of

.

graticule

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must be

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.

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waveform,

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rather

than

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frompeaktopeak

.

to

Also

make

on

the

instep

include

.

used

points

.

measured

setting

.

2-

MAY

@

1980

9