Hp 8714C, 8730, 8713C, 8712C, 8711C User Manual

Service Guide

Agilent Technologies

8711C/12/13C/14C

RF Network Analyzers

and

8730A Tuner Analyzer

Manufacturing Part Number: 08712-90059

Printed in USA

Print Date: February 1998

Supersedes October 1996

© Agilent Technologies, Inc. 1996, 1998

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This manual may contain references to HP or Hewlett-Packard. Please note that
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Americas

Brazil

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Canada

(tel) [phone]
(alt) [phone]

(fax) [phone]

Mexico

(tel) 1 800 254 2440
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Australia

(tel) 1 800 802 540
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(fax) 1 800 225 539

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Spain

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(fax) (+41) (0)1 272 7373

5/6/05

Service Guide

HP

RF

HP

8711C/12C/13C/14C

Network

8730A

and

Tuner

Analyzers

Analyzer

ABCDE

HP Part No. 08712-90059

Printed in USA February 1998 Supersedes October 1996

Notice.

The

information contained

in

this

document

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subject

to

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manual.

separate

iii

Contents

1.

P

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System

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The

The

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20 dB Attenuators (P

External 10 dB Step Attenuator .................... 1-18

UsingtheProgram............................. 1-19

Main Menu ...... ...... ..... ...... ...... .. 1-19

Test Selection Menu .... ...... ...... ...... .... . 1-20

Miscellaneous Information ..... ..... ...... ...... .. 1-21

Individual Test Notes and Descriptions ................... 1-21

Frequency Accuracy. ..... ...... ...... ...... ... 1-21

T

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1-5

1-6

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1-9

1-11

1-11

1-11

1-12

1-14

1-15

1-15

1-16

1-16

1-16

1-16

1-16

1-16

1-16

1-17

1-17

1-17

1-17

1-17

1-17

1-17

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1-18

Contents-1

Gain

Compression .

Noise

Floor .

Dynamic

P

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Absolute

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Directivity

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Set

Serial

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Case

LO

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Switched

Required

Warmup Time . . . . . . .

Estimated A

Procedure....... ....

External Detector Correction, A

Required Equipment . . . . . . . . . . . . . . . . . . . .

WarmupTime ..... ..... ...... ....

Estimated A

Procedure....... ...... .... ...... .

Auxiliary Input Correction, Adjustment #111 .... ...... ...... . 2-21

Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

WarmupTime ..... ..... ...... ...... ...... .. 2-21

Estimated Adjustment Time ....................... 2-21

Procedure....... ...... .... ...... ...... .... 2-21

Source Power (ALC) Correction, Adjustment #104 .. ...... ...... . 2-22

Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

Accuracy

Power

(includes

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Delay

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.

1-21

.

1-22

.

1-22

.

1-23

.

1-23

1-24

.

1-24

.

1-25

. 1-26

.

1-26

.

2-3

.

2-4

.

2-4

.

2-4

.

2-4

.

2-4

.

2-7

.

2-7

.

2-7

.

2-7

.

2-7

.

2-11

2-11

.

2-11

.

2-11

.

2-11

.

2-14

.

2-14

. 2-14

.

2-14

.

2-15

.

2-16

.

2-16

.

2-16

.

2-16

.

2-16

.

2-17

.

2-17

2-17

2-17

2-17

2-19

2-19

2-20

2-20

2-20

Contents-2

W

armup Time

Estimated

Procedure

In

Case of

B

Amplitude Correction,

Required

W

armup

Estimated

Procedure

Transmission

Required

W

armup

Estimated

Procedure

B*

Amplitude

Required

W

armup

Estimated

Procedure

AM

Delay

Required

W

armup

Estimated

Procedure

Reection

Required

W

armup

Estimated

Procedure

R*

Amplitude

Required

W

armup Time

Estimated

Procedure

R*

Frequency

Required

W

armup

Estimated

Procedure

Adjustment

..

.

Diculty

Equipment .

Time

A

djustment

.

.

.

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Equipment

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A

djustment

.

.

.

Correction,

Equipment

Time

A

djustment

.

.

.

Correction,

Equipment

Time

A

djustment

.

.

..

(One-P

ort)

Equipment

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A

djustment

.

.

.

Correction,

Equipment .

Adjustment

.

.

.

Response

Equipment

Time

A

djustment

.

.

.

..

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.

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Time

.

.

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.

.

A

djustment

.

.

.

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.

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Time

.

.

.

.

.

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.

.

.

.

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.

Time

.

.

.

.

.

A

djustment

.

.

.

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.

Time

.

.

.

.

.

A

djustment

.

.

.

.

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.

.

Time .

..

.

.

Correction, A

.

.

.

.

.

..

.

Time

.

.

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.

.

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djustment

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.

.

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.

.

.

Time

.

.

.

.

.

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.

.

.

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.

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Time

.

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..

..

.

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.

.

#105

.

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.

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A

djustment

.

.

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..

..

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..

#110

.

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.

#112

.

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djustment #107

..

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.

#108

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#106

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.

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. 2-25

.

.

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..

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. 2-30

.

.

..

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.

.

. 2-31

2-22

2-22

2-23

2-25

2-25

2-25

2-25

2-26

2-26

2-26

2-26

2-26

2-27

2-27

2-27

2-27

2-27

2-28

2-28

2-28

2-28

2-28

2-29

2-29

2-29

2-29

2-29

2-30

2-30

2-30

2-30

2-31

2-31

2-31

2-31

3. Assembly Replacement

Introduction . . . . . . . . . .

Required T

Major Assembly Removal/Replacement

A1 Front P

How to Remove the Front P

A2 CPU Board Assembly Replacement

How to Remove the CPU Board Assembly . . . . . . . . . . . . . . . . . .

A3 Fractional-N/Reference Assembly Replacement . . . . . . . . . . . . . . . 3-8

How to Remove the Fractional-N/Reference Assembly .... ...... .. 3-8

A4 Source Assembly Replacement ...... ...... .... ..... . 3-9

How to Remove the Source Assembly . . . . . . . . . . . . . . . . . . . . 3-9

A5 Receiver Assembly Replacement . . . . . . . . . . . . . . . . . . . . . . 3-10

How to Remove the Receiver Assembly . . . . . . . . . . . . . . . . . . . 3-10

A6 Power Supply Assembly Replacement .... ...... ...... ... 3-12

ools.........

anel Assembly Replacement

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

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

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

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

anel Assembly

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

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

....

..

3-1

3-1

. 3-2

3-3

3-4

. 3-5

3-6

Contents-3

How

to Remove

A7

Display Assembly

How

to Remove

How

to replace

How

to A

A8

3.5" Internal

How

to

Remove

Attenuator

AM

Delay

P

ost

Repair

How

Save

Save

4.

Troubleshooting

Introduction

General

Service

How

Initial

Operator's

Category

Error

Troubleshooting

Check

Measure

Remove

Troubleshooting

Error

Error

Clear

Measure

Front

Other

Other

Category

Troubleshooting

Check

Phase Lock Problems

Detailed Fractional-N/Reference Troubleshooting

Troubleshooting the A4 Source Assembly

Troubleshooting the A5 Receiver Assembly

A5 Receiver Assembly Diode Replacement

Trace at6200 dB

Detailed Receiver Troubleshooting

Category 3 F

Troubleshooting Spurious Responses and Inaccurate Data .......... 4-25

Spurious Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-25

Spurs in the Data Trace .......... ...... ...... ... 4-26

Inaccurate Data ...... ...... ..... ...... .... .. 4-26

Receiver Power Problems .... ...... ...... ...... .. 4-27

Category 4 Failures: Peripheral Device Problems . . . . . . . . . . . . . . . . 4-28

DINKeyboard........ ...... .... ...... ...... . 4-28

Replacement

Modulator

Procedures

to

Order

Money

Time

Notes

Kit

to

Use

Observations

1

F

Messages

the

During

T

est

Status

T

est Status

Occurs During

the

P

anel

P

ower-Up

Error

2

F

the

the P

ower

Supply

Replacement

the

Display

the

power

djust

the

P

osition

Disk

Drive

Assembly

the

3.5"

Disk

.

.

.

Replacement

.

.

.

.

P

arts

.

.

.

.

.

by

Ordering

by

Calling

and

.

.

.

.

.

.

.

.

.

the

Extender

Check

ailures

the

Assemblies

the

ailures

ailures - Inaccurate (but reasonably functional) Measurements

-

on

A6

Rear

Panel

P

ower

Digital

P

ower-up

LEDs

LEDs

Nonvolatile

5

MHz

Problems

Problems

messages

-

the

Output

R-E

(800)

227-8164

Block

.

.

.

-

.

Dead

the Display

P

No

A3

P

Diagrams

.

.

.

.

.

.

.

..

.

.

.

.

Board

Normal

.

.

.

.

or

No

ower Supply

LEDs .

Supply

.

.

.

Group

.

.

.

.

.

.

code

.

DSP

Initialization

SRAM

Reference

.

.

.

.

.

.

.

Error

Fractional-N/Reference

ower

..

...... .

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

Assembly

.

.

.

.

.

Assembly

switch

of

the

Drive

.

.

.

.

.

.

(Rebuilt-Exchange)

.

.

..

..

P

ower-up

.

.

Response

..

.

Voltages

..

Problems

.

.

.

.

.

.

.

Signal

.

.

.

.

.

.

Message

.

.

.

or

brightness

CRT

Replacement

.

.

.

.

..

..

..

Assembly Problems

.

.

.

.

.

.

.

.

.

.

.

Assembly

.

.

.

.

.

.

.

.

.

.

.

..

.

..

..

.

.

.

..

..

..

.

.

.

.

.

.

.

.

.

Sequence

..

..

,No

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

or

Calculating

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

,

but

Nonfunctional

.

.

.

.

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

.......

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

.

.

.

.

.

.

.

.

.

.

..

.

.

.

.

.

..

..

..

..

.

.

.

.

.

.

..

..

..

..

control

.

.

.

.

.

.

.

..

.

.

.

..

..

Assemblies

.

..

.

.

.

.

.

.

.

.

.

.

.

.

.

Display,

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

..

.

.

.

.

.

.

Assembly

.

.

.

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

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

.

.

.

.

.

..

..

..

..

.

.

.

.

.

.

.

..

.

.

.

.

..

..

..

..

..

.

.

.

..

..

..

..

..

.

.

.

.

..

.

.

.

.

.

.

.

.

.

..

..

..

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

..

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

Unreadable Display

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

..

.

.

.

.

.

.

.

.

Coecients

.

.

.

..

.

.

.

..

..

..

.

..

..

..

..

Measurement

.

.

.

..

.

........

...... .....

.

..

.

..

..

.

.

.

..

.

..

..

..

..

.

.

.

...... ....

..

..

..

..

.

.

..

.

.

.

.

..

.

.

.

.

.

.

.

.

.

.

.

..

.

.

.

.

.

.

.

.

.

.

.

.

.

.

..

.

.

..

.

.

.

.

..

.

.

.

.

.

.

..

.

.

.....

..

..

..

..

..

..

..

.

.

.

.

.

.

.

.

..

.

.

.

.

.

.

.

.

.

.

.

.

.

,or

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

..

.

.

.

.

.

.

.

.

.

.

.

.

.

..

.

.

...

..

..

..

..

.

.

.

.

.

..

.

.

.

.

.

.

.

.

.

..

.

.

.

.

.

.

.

.

.

.

.

.

.

.

3-12

3-13

. 3-13

3-13

3-13

. 3-14

.

3-14

.

3-14

.

3-14

.

3-15

.

3-16

3-16

.

3-16

.

4-1

.

4-1

.

4-3

.

4-4

.

4-5

.

4-6

.

4-7

.

4-7

4-7

.

4-8

.

4-9

.

4-9

.

4-9

.

4-10

.

4-10

.

4-14

.

4-14

.

4-14

.

4-15

.

4-15

.

4-16

.

4-17

. 4-17

.

4-17

4-17

4-18

4-19

4-19

4-21

4-24

4-24

4-25

Contents-4

RS-232

Centronics

HP-IB

LAN

5.

Service

Introduction

T

ests

Select

Select

Instrument

Update

Service

Meas

Analog

Service

Service

View

Miscellaneous

Clearing

HP-IB

Syntax

Softkey

Alphabetical

Printers and

(Parallel)

Systems .

HP-IB

General

Ping

How

T

A

Problems with

Checks for

Troubleshooting (Option

Command

to

Ping

esting

Between

vailable

Related

and

A

djustments

Self-T

est

A

djustment

Info

Corr

Utilities

Cal

Options

Bus

Menu

Utilities

Utilities

Array

Master

Nonvolatile

Command

Summary

SCPI

HP

.

.

Menu

Const

Service

Commands

SCPI

Plotters .

Printers

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Two

LAN

Cables

Menus

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.

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Menu

Menu

.

.

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Menu

Menu

1

Menu

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.

Menu

2

Menu

3 .

Menu/View Array

Functions

Memory

Reference

.

Command

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Printers

HP-IB

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Analyzers

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Systems

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Service

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Summary

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4-28

4-28

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4-29

. 4-29

. 4-29

. 4-29

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4-30

.

4-30

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4-31

.

4-33

.

5-1

.

5-2

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5-2

.

5-4

.

5-6

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5-6

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5-7

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5-9

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5-9

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5-11

. 5-11

.

5-12

.

5-12

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5-12

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5-13

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5-13

.

5-13

.

5-14

6.

Theory of

Introduction

System

Analyzer

P

ower

Digital

A1

A2

A7

A8 3.5" Internal Disk Drive Assembly . . . .

Source Theory . . . . . . . . .

A3 Fractional-N/Reference Assembly

A4SourceAssembly...................

Receiver Theory . . . . . . . . . . . . . . . . . . . .

Dierences Between the HP 8711C/12C/30A and HP 8713C/14C (1300 MHz vs

HP 8713C/14C A4 Source Assembly . . . . . . . . . . . . . . . . . . . .

A5 Receiver Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

Operation

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Theory

Supply

Control

Front

CPU

Display

3000 MHz) . . . . . . . . . . . . . . . . . . . . . .

.

.

Functional

Theory

Theory

P

anel

Assembly

Assembly

Assembly

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Group

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

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

...... ...

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...... ...

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...... ..

6-1

6-1

6-2

6-2

6-2

6-2

6-2

6-3

6-3

6-4

6-4

6-4

6-5

6-7

6-7

Contents-5

7.

Parts

List

Analyzer

Specic

8.

Correction Constants

Storing

Storing

Loading

Storing

Installing

In

Upgrading

How

9.

Safety

Safety

General

Safety

Servicing

W

arranty

Limitation

Exclusive

Assistance

Shipment

Hardware .

Assembly and

and Recalling

Correction

Correction

Correction

Correction

Case

of

or

to

Upgrade

,

W

arranty

Symbols

Safety

Earth

.

.

for

Cable

Correction

Constants

Constants

Constants

Diculties

Re-Installing

or

Re-Install

,

and

.

.

.

Considerations

Ground

.

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of

W

arranty

Remedies .

.

..

..

Service

..

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.

.

.

Locations

and

Firmware

to

from

to

Constants

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Firmware

the

Assistance

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Constants

Disk

EPROM

from

.

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..

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Disk

Disk

.

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Firmware

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(CC)

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7-1

. 7-1

8-1

.

8-2

.

8-3

.

8-3

.

8-3

.

8-3

.

8-4

.

8-4

.

9-1

.

9-2

.

9-2

.

9-2

.

9-3

.

9-3

9-3

.

9-4

9-4

Index

Contents-6

Figures

1-1. Equipment

1-2. Typical

1-3. Typical

1-4. Typical

1-5. Connect

2-1.

Removing

2-2.

TP11

2-3.

Removing

2-4.

Setup

2-5.

API

and

2-6.

Setup

2-7.

Removing

2-8. External

2-9.

Setup

3-1.

Removing

3-2.

Removing

3-3.

BootROM

3-4.

Removing

3-5.

Removing

3-6.

Anchoring

3-7.

A8

Disk

4-1.

Example

4-2.

Connecting

4-3.

P

ower

4-4.

HP

8711C/12C/30A

4-5.

HP

8713C/14C

4-6.

HP 8711C/12C/30A

4-7.

HP 8713C/14C

Locations

4-8.

Construction of

4-9.

HP

8711C/12C/30A

4-10. HP 8713C/14C A4 Source and A5 Receiver Assemblies Block Diagram . . . . .

5-1. The Service Key Menus

6-1. Simplied Analyzer System Block Diagram

6-2. Simplied HP 8711C/12C/30A A4 Source Block Diagram

6-3. Simplied Receiver Block Diagram

8-1. Correction Constants Flow by Keystroke and Cycling P

Setup

HP

8713C/14C

HP

8713C/14C

HP

8713C/14C

the

the

and

L162

the

for

Fractional-N

100

for

Frequency

the

Detector

for

Source

the

the

U335,

the

the

Screw

Drive

of

the

Supply

for

Transmission

Transmission

Broadband

Reection

Load

kHz

an

.

.

.

.

.

.

Handles

for

Handles

Handles

Handles

CPU

Component

Fractional-N/Reference

A4

Jumper

Antistatic

Extender

Connector

Reection

A5CR45, CR46,

..

a Cross-over

and

Fractional-N

and

Spur

A

djustments

A

ccuracy

and

Connector

P

ower

Correction

and

Assembly

Source

Locations

Assembly

Conguration

W

Board

,

as

Reection

Measurement

A5CR1, CR2,

..

..

Overall

.

Front

Front

A

djustments

Front

,

Front

Front

.

Location

for

orkstation

Viewed

Measurement

CR47, CR48,

..

Cable .

Block

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

Measurement

Measurement

P

ower

Measurement

.

.

.

.

P

anel

V

CO

A

djustment

P

anel

.

.

.

.

A

djustment

P

anel

View

.

.

P

anel

Assembly

.

.

.

.

.

Assembly

.

.

A5

Receiver

.

.

.

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.

.

from

with

CR36, and

.

.

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..

Diagram

...

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Measurement

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.

.

Removal

.

.

.

.

.

..

..

..

..

Rear P

.

anel .

with

Through

CR37

CR53, and

.

.

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..

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

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

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.

.

Through

Component

.

.

.

.

.

.

Cable .

Cable

CR54

.

.

..

ower ...... ...

.

..

Locations

Component

.

.

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...... .....

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..

..

..

..

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..

..

..

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..

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. 1-7

. 1-7

. 1-8

1-9

.

1-10

.

2-5

.

2-6

.

2-8

.

2-9

.

2-9

.

2-11

.

2-13

2-19

.

2-23

3-3

.

3-5

.

3-6

.

3-8

.

3-9

.

3-10

.

3-14

.

4-2

.

4-5

.

4-8

4-20

.

4-20

.

4-22

4-23

. 4-32

. 4-35

4-37

5-1

6-1

6-5

6-6

8-1

Contents-7

T

ables

1-1. Required

3-1.

P

ost

4-1.

Analyzer

4-2.

Source

5-1.

Analyzer

5-2.

Analyzer

5-3.

Analyzer

5-4.

Analog

5-5.

Softkey

5-6.

Alphabetical

7-1.

HP

8711C/12C/30A

7-2. HP

7-3.

7-4.

7-5.

7-6.

7-7.

7-8.

7-9.

7-10.

7-11.

7-12.

7-13.

7-14.

7-15.

9-1.

8713C/14C Major

A1

Front

A2

CPU

A3

Fractional-N/Reference

HP

8711C/12C/30A

HP

8713C/14C

HP

8711C/12C

HP

8711C/12C

Locations

HP

8730A

HP

8713C/14C

HP

8713C/14C

Locations

A6

P

ower Supply

A7

Display

Cabinet

Hewlett-P

Equipment for

Repair

Procedures

Self-T

Frequency

Self-T

A

djustments

Correction

Bus

Nodes

SCPI

P

anel

Assembly

A5

Assembly and

and

Miscellaneous

ackard

ests

.

.

V

ersus

ests

.

.

Constant

.

.

Commands

SCPI

Command

Major

Assembly

Assembly

and

A4

A4

Source

A5

Receiver

A5

Receiver

.

.

.

.

Receiver

A5

Receiver

A5

Receiver

.

.

.

.

Assembly and

Sales

the

A

djustments

.

.

.

.

.

.

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Storage

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Summary

Assembly

and

and

Cable

Cable

Locations

Assembly

Source

.

Assembly

..

and

Assembly

Assembly

Assembly

Optional

.

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.

.

Assembly

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Cable Locations

Cable Locations

P

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Service Oces

and

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and

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and

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and

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and

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P

erformance

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.

Locations

.

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.

Locations

Cable

Locations

Locations

Locations

Assembly

.

.

.

.

Locations

Locations

Assembly

.

.

.

.

..

..

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..

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..

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..

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1-13

.

3-15

.

4-11

4-18

.

5-3

.

5-5

. 5-8

.

5-10

.

5-13

5-14

.

7-2

.

7-3

.

7-4

.

7-5

.

7-6

. 7-7

. 7-8

.

7-9

.

7-10

.

7-11

.

7-12

7-13

.

7-14

.

7-15

.

7-16

.

9-5

Contents-8

P

erformance T

1

ests

This chapter

the

system

performing

instructions

The

operator's

for

this

Option

The

performance

greater than

check

1EC

analyzers).

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specications

the

for

check

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performance test

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HP

language

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test

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in

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requires

and an

for an

is

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the

HP-IB interface

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parts:

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used

as

and

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test.

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allow

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printed

no

manual

a

knowledgeable

out

at

any

test

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technician

time

to

perform

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include

each

test

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Performance Tests 1-1

all

System Specications

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specications

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following

apply

after

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user

temperature

temperature

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HP

8711C/12C/13C/14C/30A

Source

HP

match

HP

8711C/12C/13C/14C/30A

8711C/12C/30A

300

kHz

to

(indicated

range

P

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enhanced

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1000

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by

boldface

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1000

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8713C/14C

300

kHz

>

1300

kHz

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to

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to

to

1300

100

1300

to

MHz

MHz

3000

MHz

MHz

18

30

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18

dB

dB

dB

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Source Specications

Frequency

Range

HP 8711C/12C/30A 300 kHz to 1300 MHz

HP 8713C/14C 300 kHz to 3000 MHz

Accuracy

6

5 ppm at 25C65C

<

1 Hz at 10% change in line voltage

1-2 Performance Tests

Level A

1

All

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HP

8711C/12C/13C/14C

HP

8730A

power

characteristics

Output

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1

6

1.0

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1.5

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for

HP

8713C/14C

analyzers

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+10

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for

internal

(HP

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<

0

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Receiver Specications

Frequency Range

Type of Detection HP 8711C/12C/30A HP 8713C/14C

narrowband 0.3 to 1300 MHz 0.3 to 3000 MHz

broadband 10 to 1300 MHz 10 to 3000 MHz

Performance Tests 1-3

6

0.5 dB

Total

Typical

Frequency R

esponse (broadband)

HP 8711C/12C/30A HP 8713C/14C

6

1.0 dB

T

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= Absolute

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HP

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Range

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artwork here

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.

Dynamic

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Insert

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medium

narrow

1

3700

2

250

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here

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bandwidth

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Hz

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1

2

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dBm,

HP

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0.2

6

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excludes

dB

dB

frequency

response)

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8713C/14C

6

0.2

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0.05

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operator's

wish

to

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condent

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high

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cable

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SYSTEM

N

N

N

N

N

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N

NN

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N

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is performing

that the

consists

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a measurement

power level

level

you

have

operator's

preset

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press

the

to

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OPTIONS

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N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

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N

N

N

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N

N

N

N

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N

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be performed

analyzer is

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HP 85032B/E

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check,

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when you

working properly

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N

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N

N

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N

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N

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making a

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N

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N

N

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to

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N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

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analyzer,

operator's check

if it

Use

(75).

procedures

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of the

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change the

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same

have

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1-6 Performance Tests

Make

1.

Connect the

that

a

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equipment as

was supplied

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with your

shown in

analyzer.

Figure 1-1

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aknown

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such

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8713C/14C

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data

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cautions

trace

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.

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8711C/12C/30A

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page

6

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of

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SCALE

should

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4

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ENTER

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look

similar

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5

.

1-2 for

,

but

end

a typical

at

1300

MHz.

Figure 1-2. Typical HP 8713C/14C Transmission Measurement

Performance Tests 1-7

Make

1.

2.

3. V

a

Leave the

Press

4

MEAS1

erify that

HP 8713C/14C

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cable connected

N

N

N

N

N

N

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5

the data

trace.

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N

N

N

N

N

N

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Power

trace is

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to the

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4

FREQ

within

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N

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N

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5

6

N

N

N

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of

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5

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MHz

dBm.

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5

4

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Figure

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Figure

1-3.

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here

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the

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trace falls

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4

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below

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N

N

N

N

N

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0

16

dB

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NN

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N

N

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N

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N

N

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1-4

for

a

typical

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Figure

here

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1-4.

Typical HP

8713C/14C

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Performance Tests 1-9

Figure

LO

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here

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N

N

N

N

NN

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N

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concludes

performing

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175

accuracy

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the

using

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measure

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repeat the operator's check using a dierent cable and load to eliminate these as a

possible cause of failure

the

1-5

.

that

the

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N

N

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the

the

following:

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known

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lter

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supplied

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with

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can

same

erify

(same

port

the

screen.

be

both

verify

,

6

2500 Hz

NN

NN

N

N

N

Trigger

5

obtained

as

as B*/R*).

N

N

as

shown

screen,

is

expected.

the

aCW

N

N

N

N

N

N

N

N

N

N

N

N

N

N

in

press

4

by

frequency

frequency

at 500

NN

Hold

MHz).

NN

N

N

N

N

N

N

N

N

N

N

)

to

SCALE

5

If your analyzer does not meet the criteria in the operator's check,

your analyzer may

need servicing. Have a qualied service technician check the analyzer or contact any

Hewlett-Packard sales or service oce for assistance

Sales and Service Oces" in Chapter 9, \Safety

. Refer to T

,W

arranty, and Assistance

able

9-1, \Hewlett-P

," for the nearest

oce.

1-10 Performance Tests

ackard

Instructions for

Introduction

The

performance

designed

and

HP

8730A

option

HP

An

to

B

compatible

HP B

E2060B.

Note

Note

8730A).

HP

run

ASIC

ASIC for

combinations

9000 Series

the LIF

language

Operation under

to

test software

automate

as

well

200/300/700 (or

version of

processor

computer

Windows is

This

HP

HP

All

with

08712-10012).

you

only

all

,

including

that

program

8711A,

part

the

the

are

the

Using the

,HP

the

performance

as

the required

both

the software

card (HP

has

HP B

a

separate

either platform

cannot

order

number

data

les

previous

It

adding

main

this

program

Analyzer P

part number

verication tests

automated fractional-N

50

 and

equivalent) computer

. However

82324B or

ASIC for

product

is

be

used

HP

part

number

08712-10011.

and

conguration les

HP

871xB

is

not

necessary

program

le

08712-10017 (LIF)

75 

,

it

equivalent). The

Windows installed

which

nearly

to

test

Both

version

to

to

the

(CAL871XC)

erformance T

for the

spur adjustments

versions (only

with B

will

also

run

may

be

purchased

identical.

an

HP

8711A

08711-10011.

of

these

programs

used in

of

this

program

regenerate

same

directory

need

be

est Software

and 08712-10018

HP 8711C/12C/13C/14C,

.It

the 75

ASIC

on

DOS

and

T

o

this

or

transferred.

5.1

a

PC

version

an

HP-IB

as

or

any

test

are

program

(HP

modify

as

the



versions

or

greater

system

will

HP

HP

871xB

an

HP

in

are

part

any

HP871xB

with

run

interface

model

871xB

LIF

format only

compatible

number

of

these

(DOS), is

will

test

apply

to

is

required

an

HP

on

any

card.

number

.

T

o

test

,

order

les

software

.

all

the

PC

an

.

If

,

The

performance

from

the

disk, although

best

performance

loss

of

data. The

environment.

Operation

4

RETURN

key.

Note

A disk le is generated for

This le is updated after each

be obtained for any previously tested analyzer

Estimated Time

Before running the performance tests

hour.Performance test times are kept to a minimum, allowing analyzers to be fully tested

within one hour after the initial warmup.

5

/

4

is

ENTER

test software

. Generally

LIF version

The

DOS version

a

simple

5

/

4

EXECUTE

All

program.

is

provided

it

is

recommended

,the

program

program

is limited

menu

driven

5

key

can

necessary instructions

each analyzer

test so that results will not be accidentally lost. A printout can

will

system

always

, turn on the analyzer and allow it to warm up for one

on

a

single

disk.

Y

ou

can

run

the

program

that

you

run

it

from

your

system's

can

be

stopped,

operate

to

DOS

with

be

and

, and the results of each test are stored in that le

on

environments

some

used

as

test

setup

.

a

LIF-based

softkey

softkey

diagrams

reset

.

selections

#1:

and

system,

the

are

re-run

.

most

contained

with

or

an

F

or

ease

frequently

hard

directly

disk

little

or

SRM/HFS

of

use

,the

used

within

the

for

no

.

Performance Tests 1-11

Note

Equipment

When

testing

disconnected.

communicate

an

HP

Ignore

with

8730A,

any

the

test

the

error

set.

HP

87030A tuner

messages

indicating

test set

that

should be

the analyzer

cannot

Besides

the

equipment

a

computer

that

,

printer

is

required

,

RF

cables

,

BNC

cables

,

to

test

and

adjust

HP-IB

the

cables

analyzer

,

and adapters

.

,T

able 1-1

lists

1-12 Performance Tests

Required

Equipment for

T

the

able 1-1.

A

djustments

and

P

erformance

T

ests

Description HP

Function

Power

P

ower

P

ower

Low

Cal

Cal

External

meter

sensor

sensor

power

kit

kit

generator

sensor

type-N

type-N

10

dB

,

50

,

75

50

75

step

HP

8116A

HP 437B

HP

8482A

HP

8483A

HP

8481D

HP

85032B

HP

85036B

HP

8496A/G

Model

,

HP

Opt

438A

001

50

ADJ

-

STD

PERF

X

#

X X X X Do

X

X

1

X

X

-

-

-

X

-

-

-

X

75 Notes

ADJ

PERF

-

X

-

X

-

X

-

attenuator

Attenuator/switch

HP

11713A

-

X

-

driver

Spectrum

20

dB

attenuator

20

dB attenuator

10

dB

attenuator

6

dB

attenuator

3

dB

attenuator

3

dB

attenuator

P

ower splitter

P

ower splitter

Minimum

analyzer

50

50

75

,50

,75

loss pad

HP

8560

HP

HP

50

2

0955-0768 -

75

HP

50

HP

HP

series

8566B

8491A/B/C

8491A/B/C

8491A/B/C

8491A/B/C

0955-0765 -

0955-0751,

0955-0752 -

HP

(2)

11852B

Frequency counter HP 5342/3A,

Precision

cable

50

8120-4781 X

,

Opt

Opt

Opt

Opt

11667A

5350B

020

010

006

003

X

X

X

X

-

X

-

-

-

X

X

-

-

X

-

-

-

- - - - May not

X

X

-

X

-

-

-

-

-

-

X

X

Precision cable 75 8120-2408 - - X -

Service kit 08712-60012 X - X -

X

X

X

-

-

X

X

X

X

-

X

-

-

-

X

-

X

X

X

No

substitute.

not

F

or

the

Needed

10

dB

step

Others

optional

Required

analyzer

internal

See

note for

May

not

HP

8713C/14C

One

needed for

two for

use

an

HP

436A.

HP

8730A

or

Option

for

\G"

version

attenuators

may

be

substituted,

for

adjustments

for

adjustments

does

not

attenuator

be

have

20

dB

required

installed.

50

for

.

adjustments

performance tests

be

required.

3

1E1.

external

only

.

only

if

an

attenuator

,

.

.

1

An HP 85032B Option 001 is a

needed, resulting in a signicant cost savings

2

The 75 20

of 75

3

The frequency counter is useful when very accurate frequency measurements are needed. However

dB attenuator can be substituted with two minimum loss pads and a 50 10 dB attenuator

attenuators (3,6,10,20 dB) is available as HP 86213A.

subset of the standard HP 85032B

.

. This eliminates four 7-mm adapters that are not

. NOTE: a set

,ifyou

are

using a synthesized spectrum analyzer, the frequency can be measured by using the network/tuner analyzer (thus

eliminating another piece of equipment). Note that the frequency measurement using a spectrum analyzer will not

be quite as accurate as a frequency counter, but it is sucient in most cases.

Performance Tests 1-13

File

Structure

The

program

following

list

disk

contains

describes

the

several

les

found

dierent

on the

les

in

addition

performance test

to

the main

software disk.

program le

.The

CAL871XC

Cfg xxxx

P1D xxxx

P2A xxxx

P3A xxxx

Stp xxxx

This

is

the

This

is

the

name

or

Dflt

program

le

test

HP-IB

types

other

If

more

you

will

The

last

The

last

The

last

The

variable

such

directories

equipment

addresses

of

optional

than

to

select

create

cal

factor

four

digits

cal

factor

four

digits

cal

factor

four

digits

actual

xxxx

Attenuator

HP

8902A

main

program

conguration

(default).

as:

and

paths

serial

test

equipment

choices

one

conguration

a

specic

a

default

le

of

le

of

le

of

for

the

for

the

for

the

le

the

HP

the

HP

the

HP

attenuation

represents

values

Option

are

050).

le.

le

.

The

This

le

numbers

le

conguration

.

HP

8481D

8481D

HP

8482A

HP

8483A

values

the

measured

or

8482A

sensor's

8483A

sensor's

for

last

at

variable

contains

exists on

le

sensor

HP

8484A

sensor

sensor

the

external

four

digits

30

MHz

xxxx

represents any

all

the

conguration

the disk,

to

load.

.

The

variable

sensor's

.

The

variable

serial

number

.

The

variable

serial

number

10

in

the attenuator's

on

an accurate

If

dB

the

none

serial

.

.

step

user-dened

setups for

program

exists,

xxxx

the

represents

number

xxxx

represents

xxxx

represents the

attenuator

serial

system (such

will

prompt

program

.

.

The

number

as

the

the

the

.

an

Pd5 xxxx

Pd7 xxxx The

d11Cxxxx

CurrDUTx The data le that holds

The

actual

system.

the last

actual value

system. V

the last

The

data

The variable

number. The le

HP 8713C, etc

value

V

alues

are

four digits

alues are

four digits

le

that

xxxx

.

of

the

20 dB

attenuation

in the

of the

20 dB

50 attenuator

versus

attenuator's

75

attenuator

attenuation versus

in the

holds

represents

attenuator's serial

the

analyzer's

the last four digits in the analyzer's serial

\d12Cxxxx" holds data for an HP 8712C, \d13Cxxxx" for an

the test results of the most recently tested analyzer

regardless of model or serial number

as measured

frequency.

serial

number

as

measured

frequency.

number.

test

results

. The variable

by an

The variable

.

by

an

The

variable

(in this

x

case

an

can represent any

accurate

xxxx

accurate

xxxx

HP

represents

represents

8711C).

character 0 to 9.

INSTALL This program is not needed but will help speed the installation of the LIF

version program. It will automatically copy the required les into the desired

location.

1-14 Performance Tests

Note

Several

default

The

values

sensor

for

the

only

to

will

access

message

data

les

les

that

in

these

cal

factors;

external

step attenuator

demonstrate

these

will

be

displayed

are

allow

le

20

les

present

operation

are

dB

for

or learn

if

no

if

on

the

disk with

of

the

nominal

the

20 dB

, and

values.

so on.

about the

user-dened

the

program

the \xxxx"

program with

For

NO correction

example: 100

attenuators; 10.00,

This is

program. The

serial number

is using

provided as

default conguration

is specied.

these default

sux. These

factors.

percent for

20.00, 30

..

a convenience

A warning

les.

are

all

.dB

le

Conguration

The conguration

specic information

the HP-IB

the HP-IB

the

model

the

serial

the

disk

other

Ideally

will

automatically

les

stored

prompt

performance

Getting

Caution

items

,

only

you

drive

Started

addresses of

address of

numbers

numbers

locations

specic

one

conguration le

on

the

to

select

test

software

Make

master

likelihood

File

(cong) le

for your

all the

the analyzer

of the

of

sensors,

(path

to

your setup

load

only

same

disk.

one

.

This

disk

a

copy

copy

of

is the

setup.

test

test

xed

and

that

le

In this

is useful

serves

of

the

should

damage

le

that

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equipment

under

equipment

attenuators

directories)

should exist

. However

case

,

if

several

performance

remain

to

the

customizes

of

the

test

on

,

it

the

program

more

than

workstations

stored

master

items

,

and

the

is

possible

test

in

disk.

this

contained

the

external

program

will

one

setup

.

software

a

safe

place

program

in

disk

to

have

list

all

is

commonly

disk

.

for

this

10

so

several

of

the

for

This

your

usage

le

include:

dB

step

that

the

conguration

available

used

day-to-day

will

decrease the

.

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contains

attenuator

program

les

and

or

if

one

use

.

The

Note

The DOS

requires the

document assumes

it

is

First, nd all

serial numbers of the calibration devices required, such as external step

attenuators, sensors

the HP-IB addresses you

version, which

proper set

running

,

and xed attenuators for both 50 and 75 devices (if applicable). V

and

has

is used

up of

that users

been

properly

in

conjunction

the

HP-IB

are familiar

installed

with

interface

with HP

and congured.

HP

card

BASIC

B

and

ASIC

drivers

for

for

Windows

will be using, as well as the mass storage directories and locations

If you plan to operate this program only from the supplied oppy disk, insert the

computer's disk drive and skip step 1 next.

Performance Tests 1-15

Windows

.

This

|

,

that

erify

.

disk into the

P

erformance

1.

To

install this

drive

,or

copy

all required

format).

Note

2.

Set

the

computer's

the

main

3.

Load

and

part

number

select

4.

Press

5.

Press

This

conguration

le's

the

N

N

N

N

N

N

N

RESUME

N

N

N

N

N

NN

CONFIG

menu allows

selection descriptions

T

est

program to

load and

The INST

program le

run

,

N

N

N

N

N

SET

NN

NN

N

N

N

N

N

N

N

N

N

N

N

N

N

N

run the

les to

ALL program

Any

directory name

less

than

this program.

revision

N

N

N

N

NN

NN

NN

N

N

N

N

N

N

TIME

N

N

N

N

.

Remember

N

N

N

N

to

enter

you to

(such as

Software

the hard

\INSTALL"

your specied

60

characters

\Mass

N

N

N

Storage

(CAL871XC).

The program

date and

N

N

softkey

,

the

the

conguration

enter all

test equipment,

and their

Installation

drive: either

program. The

destination drive

is only

current time/date

to

set

4

RETURN

contained in

used must

,

for

best

Is" (MSI)

will display

it.

5

key

screen.

the

specic

addresses

initial

copy all

INSTALL

the LIF

be

less

than

visibility

command to

can

information

default

.If

also

,

and

.

the

be

serial

values

les (except

program will

or directory

software version.

80

characters

the directory

the

initial

current

used

as

that

numbers).

are

listed

screen

time

softkey

pertains

below

\INST

ALL")

automatically

(HFS, SRM

long,

and

or drive

with

the

or

date

is

#1.

to

your

The

conguration

.

to

the

or LIF

preferably

location

software

incorrect,

particular

hard

of

Conguration

In

this

section,

The

analyzer's

Please

device

The

same

ISC

The

equipment.

The

for

Caution

The spectrum analyzer (HP 8566B) and address (18).

selection. Any of the listed models will suce

frequency counter

since it will be used as the frequency counter

The function generator model number (HP 8116A) and address (14).

for the function generator and address. The HP 8116A is the only valid selection at this time.

note

number

ISC

ISC).

to

7

ISC

power

the

power

does

or

for

Menu

the

default

HP-IB

that

this

associated

not

have

Generally

8

respectively

the

test

This

is

generally

meter

model

meter

The program will accept the HP 436A power

not recommended or supported and may cause the program to halt execution.

, then the spectrum analyzer must have high degree of frequency accuracy

values

address

is

the

to

the

full

.

equipment

model number

only

with

it.

be

the

address

The

factory

7

or

number

(716).

address

same

for

the

The

that

This

address

as

all

for

the

default

(7).

The

8 and

may be

(HP

437B) and

and address

parameters

rst

has

the

DUT

HP-IB

second selection

, but keep in mind that if you do not use a

.

listed

selection

both

the

can

be

any

other

test

is

set

to

device

the same

address (13).

.

in

bold

type

appear

is

the

analyzer

Interface

valid

address

equipment (which

either

as

Next is the spectrum analyzer

716

address for

is the

ISC

that

for

The next

meter as a valid selection, but it is

(DUT)

Select

Code

with

any

must be

or 816.

for

the

This also

the analyzer

all

the

DUT

.

two selections

The next selection is

in

parenthesis

HP-IB

(ISC)

associated

address

and

the

valid ISC.

all

on

sets

is 16.

are

the

test

.

.

the

1-16 Performance Tests

The

attenuator switch

the

attenuator switch

are

the HP

manually

this

is inconvenient,

recommended.

The

frequency

model

spectrum

The

voltmeter

address

The

printer

all

HP-IB

except

re-direct

attached

The

program

program

location

the

disk).

should

here

characters

address

just

the

current

11713A

set the

number

analyzer

are

next,

address

printers

10

will

the

to

the

directory

of

the

If

you

be

blank.

(e

.g.

/TESTS/ANALYZER/NETWORK/8713C).

(preferably

of

the

drive

MSI

device

and

external

counter

and

its

to

model

they

should

direct

output

computer's

directory

and

CAL871XC

are

If using

disk

drive

letter

(for

.

driver model

driver

`NONE'.

10

the

use

model

address

measure

number

are

not

(01).

The

work

the

output

to

the

dened

parallel

and

Mass

Storage

program

running

an HFS

less

than 60

, also

example,

selection

If

`NONE'

dB

step

of

an

HP

number

are

next.

frequency

(HP

currently

printer

equally

to

the

Windows

the

mass

this

program

or

for easier

has

an

C:).

number

and

address

is

attenuator

11713A

(HP

If

`NONE'

accuracy

3456A)

used

address

well.

attached

port

or

a

storage

Unit

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section. The HP 8496G step attenuator contains one 10 dB section, one

40 dB sections

HP 8496G step attenuator is to be used; section 3 or 4. Enter the value (3 or 4) for which you

have calibration data.

For example, when the step attenuator was calibrated, one of the two 40 dB sections

was selected for the 40, 50, 60, and 70 dB attenuation value

the selected 40 dB section must be input to ensure valid measurement data when using

attenuations of 40 dB or greater.For purposes of identication, section 3 of the attenuator is

the section that is engaged when button #3 or #7 of the HP 11713A is lit.

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point

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20 dB Attenuators (P

described is used to enter the frequency/attenuation values for

entries for the 20 dB attenuator range from 17.5 to 23.5 dB.

.

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External 10 dB Step Attenuator.

one value needs to be entered for each nominal attenuation step. All values are relative to the

0 dB setting, which is dened as zero (i.e. the program does not care about insertion loss at the

0 dB setting).

1-18 Performance Tests

Step attenuator data is only measured at 30 MHz so only

V

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up

to 110

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dB

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HP-IB Addr's

addition it will allow you to check each listed address for the presence of an active device

will not indicate which device is set to which address. It only indicates whether or not the

device at a given address is capable of handshaking properly.

menu.

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RESUME

the power is switched ON and the HP-IB cable is connected before pressing

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will continue the program and look for an analyzer at the specied address. Make sure

This is the only way that the program can tell that the analyzer under test has

changed. Once selected, this softkey selection will disappear

the program is ready to search

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for a new analyzer model/serial number

required test equipment. In

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EXIT

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, indicating that

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Performance Tests 1-19

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NNNNNNNNNNNNNNNNNNNN

4.

Measure 20 dB Pad

Note

The detector perfomance tests consists of an absolute power accuracy test and a frequency

response test as described in the

These tests are only for testing these two specic detector models. Archiving of data is not

done for these tests.

1-20 Performance Tests

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is identical to the

The listed uncertainties shown on the test results assume that one of these

three choices was used and

degree of uncertainty.

HP 86200B/86201B RF Detectors User's and Service Guide

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Measure Step Attenuator

not

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the built-in routine which has a much higher

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power levels

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attenuator used to perform this adjustment; see \The 40 dB step attenuator

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1-22 Performance Tests

levels

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First verify that the correct 40 dB section of the attenuator is being used (if applicable). See

\The step attenuator's 40 dB card selection (3)" in \P

earlier in this chapter

If this is okay, repeat adjustment #110. If the test still fails, the cause is most likely damaged

A5 receiver diodes. See \Troubleshooting the A5 Receiver Assembly" in the \Troubleshooting

and Block Diagrams" chapter for more information.

.

erformance T

est Software Installation"

Performance Tests 1-23

Broadband

This

test checks

to

the analyzer

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To view the source match array

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Input port match is measured by performing a one-port calibration at the end of a type-N cable

using the female standards contained in the cal kit. For this reason, the economy version of the

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be placed over the center conductor of the cable.

1-24 Performance Tests

, press

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several

with

1E1

(step

(AM

delay)

(AM

delay)

frequencies

because

its

this program,

.

These

attenuator)

.

The

second

upper

frequency

as well

type

of

spurs

harmonic

as some

have

of

is

1300

MHz.

other types

typical

700

MHz

need

Out-of-band

of spurs

(characteristic)

This automated test requires that the spectrum analyzer's and the network/tuner analyzer's

timebases be tied together

, so that any known spur will be

at the exact frequency expected.

Connect a BNC cable between the spectrum analyzer's EXT REF OUT to the network/tuner

analyzer's EXT REF IN. This saves signicant time since the program does not have to search

for every signal. The program will rst check that the timebases are connected together

before proceeding. If this test is performed manually

, locking the two analyzers together is not

necessary.

If This Test Fails

Note that while many types of spurs are tested, only harmonics are specied. If harmonics

should fail, repeat the fractional-N adjustment as well as adjustment #104. The most likely

cause of a failure is the A4 source assembly.

Performance Tests 1-25

AM

Delay Modulator

AM

delay itself

However

CW

on

either side

the

at

several

matching

analyzer

If

This

The

that

replace

the AM

signal is

AM

sidebands to

CW

is

needed.

timebases

T

est

F

AM

delay

the

ribbon

the

AM

is

not

delay

modulated

of

the

CW

be

between

frequencies

As

should

ails

adjustment

cable

delay

(Option 1D

tested

in

modulator

with

signal

22.5

.

F

or

discussed

be

connected

does

is

securely

modulator

A/1DB

the

analyzer

is

tested

a

27.78

when

and

75

analyzers

previously

not

signicantly

attached

assembly

kHz

viewed

33

dB

together

to

.

analyzers

since

it

for

functionality

sinewave

on

a

spectrum

below

,

a

minimum

,

the

spectrum

to

aect

the

AM

is

a

the

avoid

this

delay

only)

function

.

.

This

CW

signal

loss

analyzer

any

test.

modulator

of the

When

the

modulation

analyzer

.

level.

pad

for proper

and

frequency

If this

external detector

modulator

produces

This test

The test

is

sidebands

simply looks

is performed

impedance

network/tuner

error

.

should fail,

assembly.

rst check

Otherwise,

used.

on, any

for

Trace

Trace

power

Noise

noise

.

This

normalizes

and

one

sweep

is

repeated

If

This

T

est F

Almost

The

be

assembly

anything

most

isolated

.

is

measured

test

sets

to

this

is

again

ails

within

likely

assemblies

to

only

Otherwise

up

trace

taken.

using

one

,

suspect

in

transmission

a

full

band

to

eliminate

The

maximum

the

narrow

the entire

to

fail are

input (A,

A4

mode

sweep

with

frequency

and

minimum

bandwidth.

analyzer system

the

A5,

B

,

or

R),

then

or

A3.

using

averaging

response

The

can

A4,

and

the

problem

the

medium

turned

errors

.

trace values

specication

contribute

A3,

in

that

is

most

bandwidth at

on

(16

averages). It

A

veraging

is

are then

only applies

to

excessive

order

.

If

trace

likely

in

0dBm

output

then

then

turned

recorded. This

at 0

dBm.

trace

noise

noise

can

the

A5

receiver

o

test

.

1-26 Performance Tests

A

djustments

2

This chapter

on the

You

need

contains

analyzer

an

external

adjustments are

Refer

to

\P

ost-Repair

adjustment

Y

ou

should

1.

Fractional-N

2.

Fractional-N

procedures

perform

3. Frequency

4.

Serial

Number

5.

6.

7.

8.

9.

10.

Option

LO

Switched

External

A

Source

B

1C2)

P

ower

Detector

ux

Input

P

ower

Amplitude

Gain

procedures

and

allow

controller

accessed

Procedures"

you

the

V

CO

A

djustment

Spur

A

djustment

A

ccuracy

,

A

djustment

Correction,

Correction,

Correction,

Correction,

(ALC)

Correction,

it

to

warm

for

through

need

to

adjustment

A

djustment

#100

A

djustment

A

djustment

A

djustment

Correction,

A

djustment

to

adjust

up

for

running

the

analyzer's

in

the

do

when

procedures

(Requires

(Generally

#101

A

djustment

#111

A

djustment

the

analyzer

one

hour

three

service

\Assembly

a

particular

in

controller)

not

#102

#103

#104

#105

.

Before

.

of

the

adjustments

menus

Replacement"

part

the

order

required.

performing

.

has

given

Requires

.

The

chapter

been

here:

adjustments

remaining

to

determine

replaced.

controller

or

IB

,

turn

which

ASIC

11.

Transmission

12.

B* Amplitude

13.

AM Delay

14.

Reection Correction,

15. R* Amplitude Correction, A

16. R* Frequency Response Correction, A

Items 1 through 3 above are adjustments where

Correction,

Correction, A

Correction, A

A

djustment

djustment #110

djustment #112

Adjustment

#107

djustment #108

#106

djustment #109

a physical part is changed (e

potentiometer is adjusted); no correction constants are generated

Item 4 above (adjustment #100) does not generate a

correction constant, although the data is

entered into permanent memory on the A2 bootROM.

.g. a

from these adjustments

Adjustments 2-1

.

Caution

Procedures

operation,

the

next

few

5

through

these

correction

paragraphs

16

all

carefully

generate

constants

.

correction

must

be

constants.

handled

For

properly.

proper

Please read

Caution

Caution

The

preset power

adjustment

If

you have

A

djustment procedures

preset

Instead

state

analyzer

4

SYSTEM OPTIONS

N

N

N

N

N

N

N

N

Service

N

N

N

N

N

N

N

NN

Inst

T

o

return

state

of

N

N

N

N

N

NN

NN

N

N

procedure

of

using

the

.

N

N

N

N

N

N

N

N

NN

N

N

N

N

N

N

N

N

N

N

State

your

level is

an

HP

as

a

standard

the

HP

8730A

5

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

Utilities

N

N

N

N

N

N

N

N

NN

NN

NN

N

N

Utilities

tuner

,

change the

8730A,

require

4

PRESET

tuner

N

N

N

N

N

N

N

N

N

N

Service

N

N

N

N

N

N

N

NN

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

analyzer

user-denable.

power level

please

the

network

5

key

,

press

analyzer

N

N

N

N

N

N

N

N

N

NN

NN

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

NN

N

Menu

N

N

N

N

N

N

NN

NN

NN

N

N

Preset

to

its

N

N

N

Next

N

N

N

NN

NN

N

N

When pressing

read

the

HP

8730A

analyzer

the

to

the

N

N

N

N

N

N

N

N

N

N

N

N

N

Next

N

N

N

N

N

N

N

N

N

N

N

N

N

N

to

8711C

original

N

NN

N

N

to 0

following

tuner

.

following

preset

N

N

N

N

N

N

N

N

N

N

NN

N

N

Menu

NN

NN

N

N

N

N

N

N

N

N

N

preset

N

N

N

4

dBm

if

information

analyzer

keys

state

of

state

,

press

PRESET

necessary

to

to

change

a

standard

4

5

in any

.

have

PRESET

carefully

the

same

the

preset

network

5

.

.

2-2 Adjustments

Correction Constants

(CCs) A

djustments

When

constants

analyzer

erased

T

4

To

1. Insert

2. Press

When you

correction

switch

Caution

o

transfer

SYSTEM

make

a

le

allows

you

if

OPTIONS

OFF

switch

from

generates

the

the

a

backup

a

formatted

4

SYSTEM OPTIONS

(or

you

are performing

constants

ON

the

CPU

correction

analyzer's

newly generated

N

N

N

N

N

N

N

N

N

N

Service

5

copy

writes

the

over an

to

quickly

to a

analyzer's

If

the

adjustments

they

have

in

the

correction

again.

If

the

to

be

the analyzer's

EPROM into

constants

line power

correction constants

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

NN

NN

NN

NN

N

of

disk

5

restore the

disk le

analyzer's

loss

correction

performed

N

NN

N

the

into

NN

NN

Service

existing le)

the adjustment

line

been

of

constant

NN

Update

correction

the

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

.

power

line

,

you

must

saved

previously

constants

again

line power

a RAM

is switched

NN

NN

N

N

N

N

N

N

Corr

internal

NN

NN

N

N

N

NN

Update Corr

adjustment data

This

before

power

data

buer.

and saves

N

N

N

N

N

N

N

N

N

N

N

NN

NN

NN

Const

constants

disk

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

NN

where the

procedures

allows

completing the

is

reload

to

disk)

performed

save

.

were

as

well.

NN

N

NN

the

, the

analyzer copies

When you

them to

OFF).

from the

N

N

N

N

N

N

N

N

N

N

N

N

NN

NN

you

switched

before

The

N

N

N

N

N

Store

to

drive

.

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

Const

correction

if you

,

to

restore

previously

proceeding.

adjustment

adjustments

never

N

N

NN

NN

NN

CC

disk,

N

N

NN

NN

NN

you

OFF

saved

NN

N

N

should

run the

the RAM

RAM to

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

NN

NN

NN

to

EPROM

perform

NN

NN

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

Store CC

replace

adjustments

at

NN

constants

periodically

data

quickly

any

stored

F

ailure

data

will

to disk,

the current

adjustment tests

buer only

the

N

N

N

N

N

N

.

following

NN

NN

N

N

N

N

N

N

N

N

N

N

N

to

Disk

are

CPU

in

.

during

to

the

to

the

adjustments

EPROM,

N

N

N

N

N

N

NN

NN

stored.

board.

store

case

do

time

be

NN

N

the

NN

the

time

correction

at

have

correction

(they are

press

steps:

.

This

creates

This

the

you

need

the

constants

so

will result

of

the

next

performed

will

, the

le

to

(if

have

Adjustments 2-3

Fractional-N V

Note

The

been

This

the

fractional-N

This

procedure

A3

fractional-N/reference

Caution

shows

Place

when making

CO A

djustment

fractional-N

replaced,

adjustment

you

how

assembly

the

analyzer

this adjustment.

V

CO adjustment

the

replacement board

should

V

to

only be

CO assembly

adjust

the

.

on

an anti-static

is not

performed if

is not

frequency

mat and

normally required.

will have

been adjusted

you have

reason to

functioning properly

of

the

fractional-N

wear a

connecting wrist

If this

.

V

at the

believe that

CO

on

board has

factory.

the

strap

Required

Service

Digital

W

Allow

extender

voltmeter

armup

the

Time

analyzer

Estimated

This

adjustment

Procedure

1.

Switch OFF

referring

a.

Remove

screwdriver

b.

Remove

c.

Pull

the

the table top

Equipment

Equipment

Description

board

to

warm

A

djustment

takes

approximately

the

analyzer's

to

Figure

the

trim

2-1:

strip

.

the

four

#15

analyzer

toward you

.

up

Time

line

from

TORX

for



R

one

ve

power

the

handles

screws

until

hour

minutes

.

Remove

attaching

the

.

by

chassis

part

any

to

the

gently

Recommended

of

service

perform.

front

prying

each

handle

extends

kit,

panel

it

about

Model

08712-60012

by

following

o

with

to

the

two

inches

or

P

art

these

a small

analyzer

over

Number

steps

athead

.

the

edge

and

of

d. Grasp and pull the front panel with

the other on the bottom-middle of the panel. Once

disconnect the front-panel ribbon cable

two hands: one on the top-middle of the panel, and

the front panel has been removed,

.

e. Remove the two #10 TORX screws attaching the handle nut plate on the right side

2-4 Adjustments

.

Insert

artwork

here

.

2.

T

o

set

these

a.

Remove

hold-down

b.

Attach

assembly

c.

Place

d.

Remove

on

e.

Use the

analyzer

extender

f.

Reconnect the

service

3.

Switch ON

If your

Figure 2-1.

up

the

steps

an

the

service

(see

the

screws

the

service

.

Tighten

antistatic

the

rear

panel

handle tab

. Attach

extender

also

Figure

backplane

and

extender

the

mat

two

SMB

EXT

to

the fractional-N/reference

board.

SMB cables

kit.

the

analyzer's

analyzer is an HP 8711C/12C:

4-2):

cover

sliding

two

on

cables

REF

loosen

.If

line

Removing

board

for

from

the

the

cover

board

by

hold-down

top

of the

from

the fractional-N/reference

BNC

connector.

the

assembly

necessary

power

.

the

Handles

adjusting

rear

toward

reversing

screws

analyzer

,

then

,

use

the

panel

the

step

securely.

.

assembly

the

set the analyzer's source frequency to 1.3 GHz by pressing

and

fractional-N

of

the

power-cord

(a)

pull

the

backplane

longer

Front

P

anel

board

analyzer

by

receptacle

with

the

lower

assembly.

board

assembly

connector

SMB

cables

4

PRESET54FREQ

assembly

,

unscrewing the

.

extender

Remove

out

of

the

to

the

provided

in

the

NNNNNNNN

5

CW

5

4

1.3

follow

board

the

upper

NNNNNNNNNNN

GHz

two

nut

.

If your analyzer is an HP 8730A

set the analyzer's source frequency to 1.3 GHz by pressing

page 2-2)

4

MEAS1

NNNNNNNNNNNNNNNNNN

N

5

Transmissn

NNNNNNNNNNNNN

:

4

FREQ

5

4

NNNNNNN

N

5

CW

NNNNNNNNNN

N

5

GHz

4

1.3

.

PRESET

(see the cautions on

If your analyzer is an HP 8713C/14C:

set the analyzer's source frequency to 1.82 GHz by pressing

4

PRESET54FREQ

NNNNNNNN

5

CW

4

1.82

5

NNNNNNNNNNN

GHz

.

4. Measure the voltage at TP11 with respect to ground on the fractional-N board assembly.See

Figure 2-2 for the location.

Adjustments 2-5

Insert

artwork here

.

5.

Use

a

screwdriver

to

board

Remove

changed.

6.

If

you

without

adjustment,

Figure 2-2.

nonconductive

,

to

adjust

ground.

the

adjustment

are

going

to

changing

the

reassemble

TP11

adjustment

L162

tool

make

the fractional-N

equipment

the

and

tool,

(see

Figure

and

measure

setup

analyzer

L162

.

such

2-2)

.

If

for

Fractional-N

as

a

until

the

voltage

spur

adjustment,

you are

small

TP11

not

ceramic

reads

again

continue

going

0

to

to

V

CO

or

1.17

insure

make

A

djustment

plastic

6

0.03

that

to

the

atblade

volts

it

has not

that

procedure

fractional-N

with

respect

spur

2-6 Adjustments

Fractional-N Spur

The

Note

This

adjustment

fractional-N

analyzer

board

and

potentiometers

sets

fractional-N

been

replaced,

This

adjustment

the

fractional-N

minimizes

assembly

up

the

to

minimize

spectrum

Adjustment

spur

adjustment is

the

replacement board

the

.

spurs

An

should

V

external

only be

CO assembly

caused

analyzer

the

spur

.

performed if

is generating

by

the

controller

to

measure

not normally

will have

you have

spurious responses

analog

sets

the

the

phase

source

spur

required. If

been adjusted

reason to

interpolators

output

.

Afterwards

this board

at the

believe that

.

(APIs)

frequencies

,

you

can

has

factory.

on

the

on

the

adjust

Required

Description

HP

B

ASIC

or

higher

T

est

Spectrum

Type-N

Minimum

Service

controller

software

analyzer

cable

loss

extender

Note

W

armup

Allow

the

Equipment

Equipment

w/B

pad

board

Before

Check

(\Fractional-N

Time

analyzer

ASIC

5.0

performing

the voltage

to

warm up

Recommended

Model or

Part

Number

50 75

HP

9000

series

200/300/700

HP

9000

series

08712-10017 08712-10017

in

the

as

HP

8560 Series

any

75



11852B

p/o

service

previous

required.

HP

8560 Series

any

50



or

HP

8566B

N/A HP

p/o

service

kit,

08712-60012

this

adjustment:

at

VCO

for one

A3TP11

A

djustment")

hour.

as

described

and

adjust

200/300/700

or

HP

kit,

08712-60012

adjustment

8566B

Estimated

A

djustment Time

This adjustment takes approximately fteen minutes to perform.

Procedure

1. If you already have the fractional-N board assembly out of the analyzer and attached to

the service board extender

, continue with step 4. If not, continue with the next step

Adjustments 2-7

.

2. Switch

referring to

OFF the

Figure 2-3:

analyzer's line

power

.

Remove

the

front

panel

by

following

these

steps

and

a. Remove

b. Remove

c. Pull

the

table-top

d.

Grasp

the

other

disconnect

e.

Remove

Insert

the

trim

the

four

analyzer

.

and

pull

the

on

the

bottom-middle

the

front-panel

the

two

#10

artwork here

strip

#15

TORX

toward

front

TORX

.

from

you

panel

the

screws

until

with

ribbon

screws

handles

attaching

the

two

of

the

cable

attaching

.

chassis

hands:

panel.

.

each

extends

one

Once

the

handle

handle

about

on

the

front

to

the

two

the

top-middle of

panel

nut

plate

analyzer

inches

has

been removed,

on

the right

.

over the

the panel,

side.

and

3.

T

o

setup

the

Figure

service

2-3.

extender

Removing

board

for

the

Handles

adjusting

and

Front

the

fractional-N board,

P

anel

follow these

steps:

a.

Remove

hold-down

b.

Attach

Tighten

c. Place

d. Remove the

on the rear panel

e. Use the handle tab to loosen the assembly

of the analyzer

the

backplane

screws

the

service

the screws securely

cover

and

sliding

extender

from

the

board

.

the

cover

by

rear

panel

toward

reversing

an antistatic mat on top of the analyzer

two SMB cables from the fractional-N/reference assembly

EXT REF BNC connector

.

, then pull the board

. Attach the fractional-N/reference assembly backplane connector to the

of

the

the

power-cord

step

(a) with

analyzer by

the

unscrewing the

receptacle.

lower

extender

.

. Remove the nut

assembly completely out

upper extender board.

f. Reconnect the SMB cables. If necessary, use the longer SMB cables provided in the

service kit.

two

board.

2-8 Adjustments

4.

Connect the

equipment as

shown in

Figure 2-4.

5.

Load

T

est

6.

Select

7.

F

or

V

CO

Y

ou

the

Generally

amplitude

Insert

and

artwork

run

Software"

\Fractional-N

each

API

frequency

may

have

best

overall

,

the

may

here

.

Figure

the

test

software

in

the

\P

A

djustments"

adjustment,

.

T

o

minimize

to

compromise

results

API

be

so

#1

.

spur

low

2-4. Setup

by

erformance

the

program

the

spur

the

three

is

the

worst. When

that

they are

for

Fractional-N

following

T

ests"

from

,

chapter

the

shows

adjust

the

procedure

performance

spurs

the

potentiometers

dierent adjustments

adjusting the

not visible

.

of

this

three

Spur

guide.

tests

times

A

djustments

in

\Loading

main

,

once

shown

of

the

API

#2

and

Running

menu.

for

each fractional-N

in

Figure 2-5.

same

pot

to

and

API

#4

the

achieve

spurs

,

their

Insert artwork here

.

Figure 2-5. API and 100 kHz Adjustments

Adjustments 2-9

8. After

the API

single frequency

completed.

adjustment, the

.The

controller displays

program prompts

a message

you to

,telling

adjust

you

for

when

the

100

kHz

the

adjustment

spur

at

a

has

9. Insert

the fractional-N

analyzer completely

that the

API (fractional-N

Note

10.

If you

board

do not

and reassemble

yet). Run

The

spur

performance

you

reinstall

signicantly

need to

repeat the

board assembly

the spurious

spurs) still

of

the

assembly

,

you

may

wish

API

the analyzer

.

back

pass

once

the

fractional-N

in

the

to

repeat

and

100

into

the

signal

the

analyzer

the

kHz

analyzer

portion

assembly

board

.

If

the performance

adjustment.

spurs

adjustment,

of

(do

not

the

performance

has

been

may

change

reassemble

re-installed.

signicantly

deteriorates

remove

the

the

test

extender

to

verify

when

2-10 Adjustments

Frequency A

In

this

procedure

10

MHz

internal

ccuracy A

the

frequency accuracy

reference

Required Equipment

clock.

djustment

of the

analyzer's source

is set

by adjusting

the

Equipment

Description

Frequency

BNC

Minimum

A

dapter,

W

armup

Allow

counter

cable

loss

type-N(m) to

the

Time

analyzer

Estimated

This

adjustment

Procedure

1.

Connect

pad

BNC(f)

to

A

djustment

takes

the

equipment

HP

5342A

8120-1839 8120-1839

N/A HP

1250-0780 1250-0780

warm

up

for

Time

approximately

as shown

one

in

hour

ve

Figure

Recommended

Model

or

P

art

Number

50 75

HP

5342A

11852B

.

minutes

to

perform.

2-6.

Insert

artwork

here

.

Figure 2-6. Setup for Frequency A

ccuracy A

djustment

2. Set the frequency counter input switches to the \10 Hz - 500 MHz" and 50 positions.

3.

On the analyzer, press

4

PRESET

(in the SOURCE keypad section)

5

(see the cautions on page 2-2)

NNNNNNNNNNNNNNNNNNNNNNN

Trigger

NNNNNNNNNNNNNN

Hold

. If the frequency counter reading is

4

FREQ

NNNNNNNN

5

CW

4

500

5

NNNNNNNNNNN

MHz

4

MENU

Adjustments 2-11

5

500

MHz

this

adjustment to

6

2500 Hz,

you

do

improve

not

need

the

frequency

to

make

accuracy

this

adjustment.

.

However

,

you

can

still

make

2-12 Adjustments

4. T

o proceed

RF OUTPUT

with the

connector.

adjustment, disconnect

the frequency

counter

and

adapter(s)

from

the

5. Remove

a. Remove

b. Remove

c. Pull

top

.

d.

Grasp

the

Insert

the handles

the trim

the screws

the analyzer

and

pull

other

on

the

artwork

and front

strip from

attaching each

toward

the

front

you

panel

bottom-middle

here

.

panel

the

until

with

by

following

handles

handle

it

extends

two

of

the

.

to

hands:

panel.

these

the

about

one

steps

analyzer

two

on

the

and

.

inches

top-middle

referring

over

the

to

edge

of

Figure

the

of

the

panel,

2-7.

table

and

6.

Reconnect

7.

T

o

obtain

the

a

counter

frequency

A3 fractional-N/reference

8. Reassemble

the

analyzer

Figure 2-7.

counter

reading

of

assembly

.

Removing

and

adapter(s)

500

MHz

(accessible

6

the

2500

Handles

to

the

Hz

or

better

through

and

RF

OUTPUT

,

a

hole

Front

adjust

in

P

anel

connector

R1

shield

on

the

between

.

J1

and

J3).

Adjustments 2-13

Set Serial

This

procedure

While

this

is

circumstances

Y

ou

can

only

IB

ASIC)

serial

is

required.

number

Number,

shows

not

when

perform

you

normally required,

you

replace

this

The performance

.

Adjustment

how to

store the

you may

the CPU

procedure

over

test software

#100

analyzer's serial

have to

perform this

board.

HP-IB,

so an

can also

HP B

number in

procedure under

ASIC

controller

be used

the CPU

to

store

bootROM.

(either

the

certain

external

analyzer's

or

Note

Required

A

computer

IBM

PC-A

T

Estimated

This

adjustment

Procedure

1.

Write

down

label.

2.

Use

one

XXXXXXXXXX

Where

characters

and

following

serial

number

would

IMPORT

apostrophe

Equipment

with

HP-IB

style

keyboard

A

djustment

takes

approximately

the 10-character

of

the

following

in

the

XXXXXXXXXX

with

the

apostrophes

of

your

be:

ANT:

Make

sure

.

capabilities

is

the

is

only

Time

serial number

B

ASIC

commands

command

with

appears

serial

number

(both

analyzer

OUTPUT

there

required.

requirement.

two

minutes

your

throughout

of

your

are

ASCII

is

US34405555,

716;"DIAG:SNUM

is

a

space

between

If

IB

ASIC

to

perform.

,

exactly

to

analyzer's

set

the

as

serial

serial

shown

this

procedure

analyzer

character

the

(Option

on

number:

number

,

replace

but

maintain

39).

F

or

example,

HP

B

ASIC

line

'US34405555'"

SNUM

1C2)

the

and the

is

installed,

analyzer

(Replace

.)

those

the leading

if the

of code

rst

an

rear-panel

the

a.

If you

then

On the

This assumes that the analyzer is at address 16 and

the analyzer's actual address

b. If you are using IB

With an external keyboard connected, press

are

using

OUTPUT

press

716;"DIAG:SNUM 'XXXXXXXXXX'"

4

ENTER

analyzer, press

HP

5

.

B

ASIC

NNNNNNNNN

Return to

ASIC:

from

an

NNNNNNNNNNNNNNNNNNNNNNNNN

external

NNNNNNNNNNNNN

Local

controller

.

,

enter:

the HP-IB is at 7. If not, either use

, or change the analyzer's address to

5

to view the IB

4

ESC

Then type the following:

OUTPUT 800;"DIAG:SNUM 'XXXXXXXXXX'"

and press

c.

Press

4

5

ENTER

4

SYSTEM OPTIONS

.

NNNNNNNNNNNNNNNNNNNNNNN

5

Service

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Instrument Info

to verify that you correctly installed

the serial number. The serial number is displayed in the dialogue box.

2-14 Adjustments

16.

ASIC command line

.

In

Case of

If

the analyzer

check

number

If

a

further

the rear-panel

.

the analyzer

serial

number

instructions

Diculty

displays

serial

displays

is

already

,

contact

an

error

number

an

error

installed

your

message

tag

message

on

that

nearest

that

again

that

HP

and

CPU

sales

tells

tells

board

you

verify

you

or

service

the

serial

that

\Serial

and

therefore

number

you

have

number

oce

cannot

.

has

the

correct

already

the wrong

serial

set,"

be

changed. F

format,

that means

or

Adjustments 2-15

LO P

Note

This

performance

Required Equipment

ower Correction,

This

adjustment

for

the

HP

procedure

.

adjusts

the

Adjustment

is

only required

8713C/14C.

D

A

C

that

controls

for the

the LO

#101

HP 8711C/12C/30A.

power level

for optimal

It is

mixer

not

required

Equipment

Description

Type-N

W

Allow

Estimated

This

Procedure

1.

2.

3.

cable

armup

Connect

Press

4

101

This

instructions

If

N

N

N

Update

Time

the

analyzer

adjustment

4

PRESET

N

N

NN

NN

N

N

N

ENTER

5

is

a

you

are

N

N

N

N

N

N

N

NN

NN

NN

N

N

N

N

N

to

A

djustment

takes

a

cable

from

5

4

SYSTEM

N

N

NN

NN

N

N

N

N

N

N

N

N

N

N

N

fully

N

N

N

N

N

Corr

N

N

N

Execute Test

automated

displayed

not

going

N

N

N

N

N

N

N

N

N

NN

NN

NN

N

N

Const

warm

N

N

N

N

N

N

N

N

N

N

up

Time

approximately

the RF

OPTIONS

N

N

N

N

N

N

N

N

N

N

NN

NN

N

N

N

N

N

N

adjustment

on

the

to

make

N

N

N

N

N

N

N

N

N

N

NN

N

Store

NN

N

N

N

N

for

one

OUT

N

N

N

N

Service

5

N

.

analyzer's

any

more

NN

N

N

N

N

N

N

N

N

N

N

N

N

N

CC

to

one

port

N

N

N

N

NN

N

N

N

N

N

hour

N

N

N

NN

minute

N

N

N

N

N

handled

NN

NN

EPROM

Recommended

50 75

any

50



.

to

perform.

to

the

RF

N

N

N

N

N

N

N

N

NN

N

N

N

N

N

N

N

N

N

N

N

N

N

Test

CRT

adjustments

N

N

N

N

N

N

N

N

N

N

N

and

by

the

.

N

N

.

Model

IN

port.

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

NN

N

Adjustments

internal

,

press

N

N

N

N

N

N

N

N

N

N

4

SYSTEM

or

P

art

N

N

N

N

N

N

N

N

N

N

N

N

NN

N

N

rmware

OPTIONS

Number

N

N

N

N

N

N

N

N

NN

Select

.

any

N

N

N

N

N

F

ollow

75

N

N

N

N

N

N

N

N

NN

Service

5



N

N

N

N

N

N

N

N

N

N

N

NN

N

N

N

N

N

N

N

N

N

N

N

N

Adjustment

the

NN

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

If

you

are

going

to

make more

generated

a. Insert a formatted disk into the internal disk drive

b. Press

a le (or writes over an existing le) where the correction constants are stored.

2-16 Adjustments

so

far

.

4

SYSTEM OPTIONS

NNNNNNNNNNNNNNNNNNNNNN

5

Service

adjustments,

NNNNNNNNNNNNNNNNNNNNNN

N

Update Corr Const

save the

correction constant

.

NNNNNNNNNNNNNNNNNNNNNNNNN

NNNNNNNNNNNNNNNNNNNNNN

NNNNNN

Store CC to Disk

NNNNNNNNNNNNNNNNNNNNNNNNN

data

that

NNN

you

have

. This creates

Switched Gain

In

this

dierent

range

for

procedure

gains

proper

,

the analyzer

to

the

ADC

Correction, A

sets the

R, A,

and B

(analog to

input signals

digital converter)

djustment #102

gain for

each analyzer

to make

sure that

operation.

input. The

the signal

analyzer can

is in

the

correct

apply

Required

Equipment

Description

Type-N

20

V

(p/o

1

The

has

internal

cable

dB

attenuator

oltage

reference

service

These items

required

an

attenuator

attenuator

kit)

attenuator is

required, as

If

a

75 20

two

back-to-back

adapters

attenuator

If

the

work.

See

may

.

voltage

This

adjustment

Equipment

1

1

source

may

not

be

required;

equipment

installed

,

then

not installed,

well as

dB

the

attenuator

minimum loss

also

be required).

reference

source

voltage

#103,

next,

Recommended

Model or

50 75

any

50



HP

8491A

Opt

020

08712-60031 08712-60031

see

text

below

.

for

this

(HP

only

then

voltage

is

not

source

is

not

for

adjustment

8730A

a

type-N cable

a

20

dB

reference

readily

pads

with

A

10

dB

is

not

available

critical;

connection

varies depending

or Option

is needed

attenuator

source

available

a

6

dB

50

attenuator

,

any

any

value

information,

1E1 instruments).

to complete

of

the

proper

(contained

for

Option

50

attenuator

1EC

may

stable

dual

between

which

P

art

Number

any

75



0955-0768

upon whether

If the

the adjustment.

impedance

in

the

service

analyzers

inserted

also

be

used

6

24

mV

20

mV

and

is

identical

or not

analyzer has

will

also

kit).

,

you

can

in

between

instead

voltage

30

to

mV

this

source

should

adjustment.

the

analyzer

an

If

an

be

substitute

(several

of

the

will

suce

6

dB

.

W

armup

Allow

Estimated

This

Time

the

analyzer

A

djustment

adjustment

to

warm

Time

takes

approximately two

up

for

one

hour

.

minutes to

perform.

Procedure

1.

Press

4

5

102

4

PRESET54SYSTEM OPTIONS

NNNNNNNNNNNNNN

ENTER

NNNNNNNNNNNNNN

NNN

NNNNNNNNNNNNNNNNNNNNNNNN

Execute Test

5

.

NNNNNNNNNNNNNNNNNNNNNNN

Service

NNNNNNNNNNNNNNNNNNNNNNNNN

NNNNNNNNNNNNNNNNNNNNNNNNN

NNNNNNNNNNNN

Test and Adjustments

NNNNNNNNNNNNNNNNNNNNNNNNN

2. This is a fully automated adjustment handled by the internal rmware

instructions on the analyzer's display

. If you are using the voltage reference source

that no connection is needed other than the 12 pin connection cable.

The analyzer presets after the test is done.

Select Adjustment

NNNNNNNNNNNNNNNNNNNNNNNNN

.F

ollow the

, note

Adjustments 2-17

NNN

3.

If

you are

NN

NN

NN

NN

NN

NN

N

N

Update Corr

If

you

generated

a.

Insert

b.

Press

a

le

N

N

N

N

N

N

N

are

not

N

N

NN

NN

NN

NN

NN

NN

going

so

far

a

formatted

4

SYSTEM

(or

writes

going

NN

N

N

N

N

N

N

N

N

Const

to make

.

OPTIONS

to make

NN

N

N

N

NN

NN

N

disk into

over

any more

NN

NN

NN

NN

NN

N

N

N

N

N

N

N

N

N

N

N

NN

NN

NN

NN

Store CC

NN

to EPROM

more adjustments

the internal

N

N

N

N

N

N

NN

NN

NN

NN

N

N

N

N

N

N

N

N

Service

5

an

existing

N

le)

adjustments,

NN

NN

N

N

N

N

N

N

N

N

N

N

N

NN

NN

N

N

N

N

N

N

NN

NN

NN

NN

N

N

Update

where

N

.

, save

the correction

disk drive

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

NN

NN

Corr

the

correction

press

.

NN

NN

N

N

N

N

N

N

Const

N

N

N

N

4

SYSTEM

N

N

N

N

N

N

N

Store

OPTIONS

constant data

N

N

N

NN

NN

NN

NN

N

N

N

N

N

N

N

N

N

CC

constants

N

N

N

N

N

N

N

N

NN

NN

NN

to

Disk

are stored.

N

NN

NN

NN

Service

5

that you

NN

N

N

N

N

N

N

N

N

N

N

NN

NN

NN

N

N

N

N

. This

N

N

N

N

N

N

N

have

creates

2-18 Adjustments

External Detector

This

procedure

external

plan

to

In

this

detector

use

test,

shows

or

external

an

accurate

you

internal

detectors.

6

Correction, A

how to

generate correction

broadband measurements

0.5

V

is provided

to both

djustment #103

constants for

.P

erform this

the X

and

Y

detector

the receiver

test whether

inputs

.

to make

or not

you

Required

V

oltage

reference

1

See

Note

below

Note

Equipment

Equipment

Description

1

source

(part

.

If

a voltage

to

the

external

positive

referenced

pin

D

=

pin

C

=

pin

K

=

These voltages

possible

itself.

pin

B

=

pin

A

=

of

service

reference

detector

and

negative

to

ground.

V+

V

0

GND

may

to derive

0

15

V

with

+15

with

kit)

source

voltage

be

the

required

respect

respect

08712-60031

is

not

connector as

are

obtained

from

voltages

to

GND

to

GND

Recommended

available

shown

,

connect

in

Figure

Model or

the

2-8.

required simultaneously

a

dual

(pin

(pin

power

from

K)

K)

the

supply

external

P

art

requested

Note

that

,

and

both

,

however

detector

Number

voltages

both

must

it

is

connector

a

be

Insert artwork here

Figure 2-8. External Detector Connector, Front View

.

Adjustments 2-19

W

armup Time

Allow

Estimated

This

Procedure

1.

2.

3.

the analyzer

adjustment takes

Press

4

PRESET54SYSTEM

4

5

4

103

ENTER

This

is

a

instructions

that

no

connection

If

the

analyzer

connections

If

you

N

N

N

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you

are

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N

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N

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N

N

N

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are

Insert

Press

a

le

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N

N

N

NN

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generated

a.

b.

to

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N

N

N

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N

N

N

N

N

N

N

Execute

5

fully

automated

on

the

fails

,

voltages

not

going

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NN

NN

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

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Const

far

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to

OPTIONS

over

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going

so

a formatted

4

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(or

writes

warm

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up

for

Time

approximately

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N

N

N

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Test

analyzer's

is

needed

the

adjustment

,

and

to

make

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N

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Store

make

disk into

an

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N

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adjustment

display

other

switch

any

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CC

more

adjustments

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5

existing

one

hour

two

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.

than

test,

positions

more

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to

internal

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le)

.

minutes

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resulting

,

then

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.

, save

disk

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to

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by

the

internal

using

pin

connection

in a

rerun

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press

the correction

drive

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correction

.

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the

voltage

warning message

the test.

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constants

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reference source

cable

.

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constant data

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, check

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that you

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, note

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creates

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2-20 Adjustments

Auxiliary

This

procedure

procedure

compute

measures

the

Input Correction,

shows

oset

two

and

you

voltages

gain of

how to

the auxiliary

generate correction

(0 and

Adjustment

constants for

+10.000 volts)

input circuitry

#111

applied to

.

the auxiliary

the auxiliary

input. The

input to

Required

V

oltage

reference

50

BNC

cable

Note

W

armup

Allow

Estimated

This

Procedure

1.

Press

4

111

Time

the

analyzer

adjustment

4

PRESET

5

4

ENTER

Equipment

Equipment

Description

source

(part

The

voltage reference

connector

analyzer

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djustment

takes

5

4

N

N

N

N

N

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5

.

to

warm

approximately

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N

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N

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of

service

must be

up

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N

N

N

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N

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kit)

connected to

for

one hour

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5

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.

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any

source provides

the

.

one

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minute

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to

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perform.

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at

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or

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voltage

connector

rear

panel

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art

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source

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.

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of

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N

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N

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N

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2.

This

is

a

fully

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you

generated

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Insert a formatted disk into the internal disk drive

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on

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not

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going

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Const

.

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SYSTEM OPTIONS

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to

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adjustment

analyzer's

to make

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more

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make

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to

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by

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,

save the

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internal

,

press

correction constant

.

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correction constants are stored.

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4

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OPTIONS

to Disk

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the

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5

data that

NNNNNNNNNNNNNNN

. This creates

Adjustments 2-21

N

N

N

N

N

N

N

N

N

N

N

you have

Source P

In

this

procedure

over

dierent

determine

this

test.

the

Other

ower (ALC)

,

the analyzer

frequencies

actual

power

and

source

meters will

Correction, A

creates a

power levels

output level.

not be

table of

.The

An HP

controlled correctly

djustment #104

values that

analyzer reads

437B or

corrects the

values from

HP 438A

by the

power meter

analyzer.

source output

a power

is required

power

meter to

for

Note

Required

Description

P

ower

meter

P

ower

sensor

High

sensitivity

(for

HP

8730A

analyzers

10

Minimum

HP-IB

*The

W

armup

dB

attenuator*

cable

HP

only)

loss

8713C

If your

analyzers),

procedure

Equipment

Equipment

power

Opt.

sensor

1E1

or

pad

and

HP

Time

analyzer has

.

8714C

may not

a

step

you

need

an

attenuator

HP

8481D

Recommended

installed

power

sensor

Model

50 75

HP

437B/438A

HP

8482A

HP

8481D

HP

8491A

Opt.

010

N/A HP

HP

10833A

require

an

attenuator

for

this

adjustment.

(HP

to

or

P

HP

437B/438A

HP

8482A

HP

8481D

N/A

11852B

HP

10833A

8730A

perform

art

Number

or

this

Option

1E1

adjustment

Allow

the

analyzer

Estimated

This

adjustment takes

options

.

Procedure

to

warm

Adjustment

approximately ve

up

Time

for

one hour

to

.

ten

minutes

to

run,

depending

on

the

installed

2-22 Adjustments

Insert

artwork

here

.

Note

1.

Switch

2.

Connect

of

3.

Press

4

104

4.

F

5.

When

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N

HP-IB

6.

If

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Update Corr Const

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generated so far

the

5

4

ollow

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N

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N

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you

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N

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N

N

N

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the

an

HP-IB

power

4

PRESET

N

5

ENTER

the

instructions

the

test

NN

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N

N

N

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N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

Talker/Listener

are

not

N

N

N

NN

N

N

N

N

N

N

N

N

N

N

NN

are

going to make more adjustments

Figure 2-9.

Before

constants

meter

5

N

N

N

Execute

N

N

N

N

N

you

in

power

4

SYSTEM OPTIONS

N

N

NN

is

N

N

N

N

going

N

N

N

N

NN

N

N

N

N

done

N

N

NN

NN

N

N

N

N

N

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.

meter

cable

between

to

13.

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

Test

on

,

disconnect

NN

N

N

N

N

N

N

N

N

N

N

N

N

N

to

make

N

N

N

N

N

N

N

N

N

N

N

N

N

Store CC to EPROM

begin

this

a

disk

and

Disconnect

5

N

NN

NN

N

N

N

.

the

screen.

N

N

N

N

N

.

any

NN

N

N

N

N

N

N

N

N

N

N

N

NN

N

N

N

Setup

adjustment,

le

for

let it

warm

the

analyzer

any

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

Service

the

power

more

N

N

N

N

N

N

N

NN

N

N

N

N

N

N

N

N

N

for

Source

later

retrieval,

up

controller

N

N

N

N

N

N

N

NN

NN

NN

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sensor

adjustments,

N

N

NN

N

N

N

N

N

N

N

.

, save the correction

N

N

and

N

N

N

N

you

for

N

N

P

ower

should

at

least

the power

that may

N

N

NN

NN

NN

N

N

N

N

N

N

N

and

Adjustments

and

press

Correction

store

if

you

have

ve

minutes

meter

be

N

N

N

N

N

N

N

N

N

N

N

N

NN

NN

NN

N

N

N

N

N

N

press

4

PRESET

4

SYSTEM OPTIONS

a

copy

of

the

correction

not

done so

.

.

Set

the

on

the

N

N

N

N

N

N

N

N

N

N

N

N

N

Select

5

N

4

SYSTEM

N

N

N

N

N

constant data that you have

HP-IB

HP-IB

N

N

N

N

N

N

NN

NN

NN

N

N

N

N

Adjustment

N

N

N

N

N

N

N

N

Service

5

already.

address

bus

.

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

OPTIONS

N

N

N

N

N

N

N

NN

NN

NN

NN

NN

NN

NN

N

N

N

N

N

5

a. Insert a formatted disk into the internal disk drive

b. Press

In Case of Diculty

If the system locks up or the power meter does not respond to the analyzer, make sure the

HP-IB cable is correctly connected and the HP-IB address on the power meter is set to 13.

If a \log error" occurs on the power meter during the low power adjustment and the test stops,

you will need to do the test again. Switch OFF the analyzer and preset the power meter.

4

SYSTEM OPTIONS

a le (or writes over an existing le) where the correction constants are stored.

NNNNNNN

NNNNNNNNNNNNNNNN

5

Service

NNNNNNN

NNNNNNNNNNNNNNNNNNNNNNNNN

Update Corr Const

.

NNNNNNNNNNNNNNNNNNNNN

NNNNNNN

NNNNNNNNNNNNNNNNNNNNNNNNN

Store CC to Disk

NNNNNNNNNNNNNNNNNN

. This creates

Adjustments 2-23

Note

If

you

must

correction

repeat

power

the

all

of

correction.

correction

Constants

adjustment.

cycle

constants

the

adjustments

constants

from

Disk"

the

analyzer's

to

If

you

in Chapter

disk

before

done

did

save

data from

line

power,

starting

up

the

disk as

8, then

and you

this

to this

correction constants

described in

go back

did not

adjustment, you

point, then

\Loading Correction

to step

store the

need to

repeat the

to disk,

1to

repeat this

source

recall

2-24 Adjustments

B Amplitude

This

input

procedure

of

0

dBm

corrects

from the

Correction, A

the

B narrowband

analyzer's internal

djustment #105

input so

source.

that it

displays a

at 0

dB trace

with an

Required

Equipment

Description

Type-N

1

W

Allow

Estimated

This

Procedure

1.

2.

cable

This

cable

armup

the

adjustment

Connect

Press

4

5

4

105

is

Time

analyzer

4

PRESET

ENTER

Equipment

preferred because

to

warm

A

djustment

takes

approximately

a

cable from

5

4

SYSTEM

N

NN

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

Execute

5

N

Recommended

50 75

8120-4781 8120-2408

1

better match

for

one hour

one

OUT

port

N

N

N

N

N

N

NN

Service

5

.

N

N

N

N

N

and

.

minute

to

N

N

N

N

N

N

N

N

N

N

lower

the

N

N

N

N

N

N

Test

to

RF

NN

N

N

N

N

N

loss

perform.

IN

N

N

N

N

N

and

it has

Time

the

OPTIONS

N

N

N

N

N

NN

N

N

N

N

Test

8120-6469

up

RF

N

N

N

N

N

N

Model

,

which

port.

N

N

N

N

N

N

N

N

N

N

N

N

N

NN

Adjustments

N

N

N

N

N

N

or

8120-6468

results

N

N

N

N

N

N

N

N

N

N

P

art

Number

1

in

a

better

default

N

N

N

N

N

N

NN

N

N

N

N

N

Select

N

N

N

N

N

N

N

N

NN

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

Adjustment

calibration.

N

N

N

N

NN

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

3.

F

ollow

the

instructions

4.

If

you are

NN

NN

NN

N

N

N

N

N

Update Corr

If

you

generated

a.

Insert

b.

Press

a le (or writes over an existing le) where the correction constants are stored.

N

N

N

N

N

N

are

N

N

N

N

N

N

NN

a

4

SYSTEM

not

NN

going

so

going

NN

NN

N

N

N

N

N

N

N

N

N

N

N

Const

to

far

.

formatted

to

NN

NN

N

N

N

N

N

N

NN

NN

N

Store CC

make

disk

OPTIONS

on

the

make

NN

N

N

N

N

N

N

more

into

N

5

screen.

any

N

NN

Service

more

N

N

N

N

N

N

N

N

N

N

NN

NN

NN

to

adjustments

the

N

N

N

N

N

N

N

N

N

N

N

NN

NN

NN

N

N

N

N

N

N

N

N

N

N

EPROM

internal

N

NN

N

N

NN

NN

N

Update

adjustments

N

N

N

N

N

N

N

NN

NN

N

.

,

save

disk

N

N

N

N

N

N

N

N

N

NN

NN

NN

NN

NN

NN

NN

N

Corr

,

the

drive

N

N

N

N

N

N

N

N

N

Const

press

4

SYSTEM

correction

.

N

NN

N

NN

NN

NN

NN

NN

NN

constant data

NN

N

N

N

N

N

N

N

N

N

N

N

NN

NN

Store

OPTIONS

NN

NN

NN

NN

CC

NN

N

N

to

N

N

N

N

5

N

N

N

N

N

NN

Disk

NN

N

N

N

N

N

N

NN

NN

N

N

N

N

N

N

Service

that you

NN

NN

NN

N

.

This

N

N

N

N

N

N

N

have

creates

Adjustments 2-25

Transmission (B/R)

This

procedure

in

narrowband

cable

to

perform

performs

B/R

measurements

this

adjustment.

a

Correction, A

transmission response

.It

is recommended

djustment #106

calibration to

that you

correct for

use a

short-length, high

frequency response

quality

Required

Equipment

Description

Type-N

1

W

Allow

Estimated

This

Procedure

1.

2.

cable

This

cable

armup

the

adjustment

Connect

Press

4

5

4

106

ENTER

is

Time

analyzer

4

PRESET

Equipment

preferred because

to

warm

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djustment

takes

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a

cable

from the

5

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better match

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hour.

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minute

to

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RF

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loss

to

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and

it has

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OPTIONS

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art

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ollow the

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instructions on

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screen.

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constant data

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have

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2-26 Adjustments

B* Amplitude

In

this

procedure

,

the analyzer

Correction, A

corrects for

djustment #110

amplitude variations

in the

B* circuitry

.

Required

Description

Type-N

20

1

2

The

has an

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two

adapters

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cable

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equipment

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then a

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analyzer

to

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see

for

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atype-N

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available

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lower

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art

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instructions on the analyzer's display

The analyzer presets after the test is done

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handled

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to

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perform.

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ollow

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Adjustment

the

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Adjustments 2-27

AM Delay

This

procedure

Correction, A

compensates

for

any loss

djustment #112

in the

analyzer's AM

delay circuitry

.

Note

Required

Equipment

Description

Type-N

1

W

Allow the

Estimated

This

Procedure

cable

This

cable

armup

adjustment

is

Time

analyzer

This adjustment

Equipment

preferred

A

because

to

warm

djustment

takes

approximately

is only

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it

has

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up

for

Time

required for

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one

analyzers

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and

lower

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minute

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or

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art Number

in

a

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better

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A

default

or

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calibration.

1DB

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1.

Connect

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Press

4

11254ENTER

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F

ollow

4.

If

you

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If you

generated so

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are

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cable

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make

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screen.

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CC

to

adjustments

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port

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adjustments

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,

save

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and

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port.

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data

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that

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you

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have

2-28 Adjustments

Reection (One-P

This

a

short,

procedure

and

corrects

a

load to

perform a

ort) Correction,

for

errors in

reection measurements

one-port reection

Adjustment

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calibration.

#107

analyzer measures

an open,

Required

Equipment

Description

Calibration

W

armup

Allow

Estimated

This

Procedure

1.

Press

4

2.

F

3.

If

N

N

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kit

Time

the

analyzer

adjustment

4

PRESET

10754ENTER

ollow

the

you

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to

warm

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going

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Const

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N

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Execute Test

5

instructions

not

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N

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OPTIONS

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to

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HP

up

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on

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make

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for

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any

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to

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hour

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minutes

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adjustments

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to

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and

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.

Model or

perform.

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,

press

HP

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N

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art

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N

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N

N

N

N

N

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N

If you

generated so

a.

b.

are

Insert

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a

le

going

a

4

SYSTEM OPTIONS

(or

to

make

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formatted

writes

over

disk

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more

into

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N

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N

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existing

adjustments

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internal

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N

N

N

N

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le)

N

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N

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N

N

N

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,

save

disk

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N

N

N

N

N

N

N

N

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N

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N

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where the

the

correction

drive

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N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

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NN

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correction constants

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N

N

N

N

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constant

N

N

N

N

N

N

N

N

N

data

that

you

have

N

N

N

N

N

N

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N

N

N

N

N

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N

N

N

N

N

N

N

N

N

N

N

N

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CC

to

are stored.

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.

This

creates

Adjustments 2-29

R* Amplitude

This

procedure

measurements

A

djustment

generates

.

(Frequency

#109.")

Correction, A

correction

eects

constants to

are corrected

djustment #108

improve absolute

in \R*

Frequency Response

power accuracy

Correction,

in R*

Required

Equipment

Description

Type-N

(p/o

Caution

W

Allow

Estimated

This

Procedure

1.

2.

(m)

termination

HP

85032B/E

armup Time

the

analyzer

adjustment

Connect

RF

OUT port.

Press

4

PRESET

4

5

4

108

ENTER

Equipment

or

HP

85036B/E)

Y

ou

must

adjustment

correction

to

warm

A

djustment

takes

approximately

a

termination

5

4

SYSTEM

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

Execute

5

NN

Recommended

50 75

00909-60009 00909-60019

perform

#104

adjustment.

Time

(included

OPTIONS

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NN

N

N

N

N

N

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up

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N

N

N

N

N

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.

adjustment

(source

for

one

two

in

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hour

the

N

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power

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minutes

HP

N

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N

N

N

N

N

N

N

N

N

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#103

(external

correction)

to

85032B/E

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N

N

N

N

N

N

N

N

N

N

N

N

N

and

Model or

before

perform.

or

85036B/E

N

N

N

N

N

N

N

N

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NN

N

N

N

N

N

N

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detector

N

N

N

N

N

N

N

N

N

N

N

N

N

N

P

art

correction)

running

calibration

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NN

NN

N

N

N

N

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N

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the

N

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N

N

N

N

N

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N

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and

R*

amplitude

kit)

N

N

N

N

N

N

N

N

N

N

N

N

N

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NN

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to

the

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

NN

3.

F

ollow

the

instructions on

If the

analyzer displays

from adjustments

should be

4.

If you are

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Update Corr Const

If you

generated so far

a. Insert a formatted disk into the

b. Press

a le (or writes over an existing le) where the correction constants are stored.

2-30 Adjustments

performed again.

not

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are

going to make more adjustments

4

SYSTEM OPTIONS

#103 and

going to make any more adjustments

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.

the screen.

an

error

message

#104

are

probably

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Store CC to EPROM

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5

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internal disk drive

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Update Corr Const

and

aborts

.

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SYSTEM OPTIONS

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3

Assembly

Introduction

This

chapter describes

replacing

Note

a failed

Some

See

replacement.

Warning

P

injury

Required

TORX

5/8-inch

5/16-inch

5/16-inch

T

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drivers

wrench

wrench

nut

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driver

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how to

assembly.

individual

Chapter

arts

of

disassemble and

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components

7,

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this

instrument

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and

T-15

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BNC

nuts)

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the

only

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for

specic

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for

may

wrench

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reassemble

instructions

each

assembly

a

list

of

the

have

sharp

included

replacement)

your

parts

edges

analyzer

for

may

that

.W

in

the

for

replacing

also

be

are

available for

ork

carefully

service

the

purpose

each

replaced.

kit)

of

assembly

to

avoid

.

Assembly Replacement 3-1

Major Assembly

The

following

sections

the:

A1

front

panel

assembly

A2

CPU

assembly

A3

fractional-N/reference

A4

A5

source

receiver

assembly

assembly

Removal/Replacement

describe

how to

remove your

assembly

analyzer's major

assemblies.

These include

A6 power

A7

CRT

A8

oppy

Option

Option

Note

supply assembly

assembly

disk drive

1E1

attenuator

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the

bottom

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assembly

delay

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.

convenience

of

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disassembly

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A2

CPU

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assembly)

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removal

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located on

performed

a label

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Insert

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components

model

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the

number

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Figure

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to

model

or

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number)

version)

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save

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by

Assembly Replacement 3-3

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2.

3.

to

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Disconnect the

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plates

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o remove

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washer

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power cord.

front handles

center top

the two

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front panel

ribbon cable

are planning

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right side

are planning

on the

left side

are planning

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the

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the

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front

the

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of the

away from

to remove

to

.

to

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fuse

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.

assemblies

,

you

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,

they

are

7.

bottom

later

,

remove

should

remove

remove

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located

both

in

down

the

the

handle

knob

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handle

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hex

on

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to

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nut

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3-4 Assembly Replacement

A2 CPU

Board Assembly

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Insert

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artwork

F

Make

A2

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replacing

shipped

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you

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to

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from the

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factory

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or

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assembly

than

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analyzer

before

may

current

with

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.

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be

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the \Troubleshooting

The replacement A2 CPU assemblies are supplied

the following

only

at

and Block

an approved

ESD

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without

a bootROM and with the

workstation.

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Figure

4-1

latest-version rmware installed.

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wish to use the latest-version rmware

, you will need a rmware disk containing the version

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desired.

Assembly Replacement 3-5

in

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erform

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2.

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Figure

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to

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all

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of

the

the

all

cables

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the

front

both

the

the

display

the

CPU

bootROM.

the

required

power

from

remove

panel

left

assembly

assembly

CPU

steps

cord.

the

assembly

and

right

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listed

the

top row

anchoring

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handle nut

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below

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of connectors

screw

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to

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b.

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artwork

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function.

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extractor

insert

the

oriented.

here

the

on

tool

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original

.

bootROM

the

old

bootROM

must

assembly

the service

into the

be

done

in

.

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kit) to

replacement CPU

order

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carefully

for

the

CPU

remove

board, making

board

the

bootROM.

to

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Figure 3-3. BootROM U335, Component Location

7. Transfer any modied SIMM memory:

If the original board has a larger SIMM installed, transfer the larger SIMM

CPU assembly.

Note

As shipped from the factory, all analyzers have 8 MB of SIMM memory.To

increase the amount of memory, remove the existing SIMM and replace it with

a higher capacity SIMM.

3-6 Assembly Replacement

DRAM to the new

8.

Transfer the

A8 3.5"

internal disk

drive assembly:

Remove

9.

Transfer all

Remove

replacement

The

replacement CPU

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Note

the disk

drive from

cable assemblies:

all cable

assemblies from

board.

board is

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unlikely

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that

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installed.

the

bootROM

bootROM

is

included

that

the

bootROM has

assistance

.

rebuilt-exchange

module

install it

properly attach

has

installed)

in

the

assembly

installed.

on the

service

failed,

will

replacement

then

also

kit

failed, contact

,

the

them to

the

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to help

failed

assembly

the

replacement

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isolate this

your local

CPU

assembly

.

board

type of

HP sales

must

Assembly Replacement 3-7

A3 Fractional-N/Reference

The

A3

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fractional-N

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daughter

board.

assembly

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are pretuned

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consists of

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as a

set; do

10 MHz

not

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reference board

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either board

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8

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.

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assembly/disassembly procedures

.

3-4.

Removing

the

Fractional-N/Reference

plugs (items

seated.

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they

HP 8711C/12C/30A

are the

numbered 5,

are

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analyzer's cable

same.

Assembly

6,

the

board

assemblies

7,

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to

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panel

assembly

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the assembly

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will easily slide out of its cavity

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3-8 Assembly Replacement

P

anel

Assembly").

connector

on

the

rear

panel.

. See Figure 3-4.

. Once released, the assembly

A4 Source

The

the

source

other

board

is

for

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comes

HP 8713C/4C

in two

dierent versions

analyzers.

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is for

the proper

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board is

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connector

panel

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cover

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interchangeable

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to

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to

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only.

the source

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in

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.

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and

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assembly.

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cables

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connector,

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.

the

completed

the cover

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are

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.

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in

assembly

Insert artwork here

.

Figure 3-5. Removing the A4 Source Assembly

Assembly Replacement 3-9

A5 Receiver

Caution

P

Assembly Replacement

erform

the

following only

at an

approved ESD

workstation.

There

75

the

are

versions

75

version

four

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A5

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the

HP

that

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or

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standard:

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assembly

F

or

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It

is

necessary

receiver

delay

assembly

assemblies

8711C/12C

compatible

connectors

to

replace

plate

to

assembly

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with

are

prevent

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be

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damaged,

a

assemblies

same

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8711C/12C/13C/14C

to

remove

and

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install

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to

remove

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it

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for

replacement.

HP

8713C/14C

the

HP

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you

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single connector

undesired

replaced

are

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that

your original

rotation.

separately

all

of

the

analyzers

the

attenuator/board

the

new

assembly

required),

and

analyzers

the

AM

delay

replacement

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analyzers

replace

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.

in

their

A5 receiver

required

with

any

with

board

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Make

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standard

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coax cables

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replace

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cables

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both

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this

no

.

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.

How

to

Remove the

Insert artwork here

Figure 3-6. Anchoring Screw Locations for A5 Receiver Removal

3-10 Assembly Replacement

Receiver Assembly

.

1. Disconnect

the power

cord.

2. Disconnect

panel BNC

3. Remove

4. Remove

5. Remove

Remove

6.

There

loosen

from

nuts and

the three

the front

the

are

one

the

Caution

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will

the

easily

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connectors.

washers from

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panel

handle

two

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assembly

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in

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,

then

cables (items

chapter).

with

connector

of

torque

.

Once

released,

A

UX

INPUT

3-6.

Assembly").

.

Completely

separate

the

numbered 1

They

are

the

other

,

resulting

.

the

rear

cable

not

.

It

in

assembly

Assembly Replacement 3-11

A6 P

The

power

the

cooling

ower Supply

supply

is

a single

fan.

Assembly Replacement

assembly.

The only

lower level

part available

for replacement

is

How

1.

2.

to

Disconnect

Remove

Remove

3.

Remove

Assembly").

4.

Remove

5.

Remove

6.

Open

7.

Withdraw

Remove

the

the

front

the

handle

the

display

the

four

the

screw

the

display

the

the

power

panel

screws

from

access

power

P

ower

cord.

assembly

nut

plate

enclosure

along

the

panel

supply

Supply

on

the

(see

the

display

and

from

Assembly

(see

\How

left

side

the

following

rear

edge

access

disconnect

the

housing.

to

only

of the

panel.

the

Remove

the

.

section

\How

display enclosure

two-wire

Front P

to

cable

anel Assembly").

Remove the

Display

.

from the

power supply

.

3-12 Assembly Replacement

A7 Display

The

display

replaced

at

the

consists

Assembly Replacement

of

same

the CRT

time.

assembly and

a matched

circuit board.

Both assemblies

must be

How

1.

Disconnect

2.

Remove

3.

Remove

analyzer

4.

Remove

Remove

5.

Withdraw

6.

Disconnect

7.

Withdraw

8.

Remove

9.

Disconnect

10.

Remove

display

11.

Remove

circuit

How

1.

Remove

to

Remove

to

replace

the

SCREW

the

two

chassis

the

front

handle

the

the

the

the

screw from

all

the

four

enclosure

the

2

board

from

the

display

the

Display

power

7

(two

screws

cord.

places)

(located

.

panel

assembly

nut

plate

on

left

enclosure

ribbon

enclosure

2

or

cable

from

completely

the display

associated cables

nuts

and

washers

.

Withdraw

screws

the

that

the

enclosure

power

secure

switch

enclosure

Assembly

as

indicated

on

the

(see

side

3

inches

the

from

access panel

from the

(one

the

CRT

the

.

or

from

the

on

display

\How

only

from

jack

to

.

its cavity

behind

its

cavity

CRT and

set

from

from

the

circuit

board

brightness

analyzer

.

the

rear-panel

side

of

the analyzer)

Remove the

.

the

top

.

and

open.

circuit board.

each

corner)

enclosure

to

.

the

control

label.

Front P

of the

that

display

from the

anel Assembly").

CRT.

secure

enclosure

the

.

Withdraw

bottom of

CRT

to

the

the

the

2.

Locate

controls

3.

Both

How

If

the

replacement,

the

the

to

A

djust

display

switch

from

controls

does

the

and

the

display

and

the

P

not

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brightness

ange

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of

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associated

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be

level

CRT

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cables

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(scan

at

need

the

left

must

lines do

to be

side

of

the

display

be

replaced as

not appear

to be

adjusted within

.

Remove

a unit.

horizontal) after

the display

both

enclosure.

1. Loosen the four nuts (one from each corner) that secure the CRT to the display enclosure

2. Reposition the CRT

3.

Tighten the four nuts

.

.

.

Assembly Replacement 3-13

A8 3.5"

The

disk

drive

replacing

with

If

the

only

position

clean

drive

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the

the

compressed

must

jumpers

of

the

congurations

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is

a non-repairable

drive

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try cleaning

air

.Most

be

replaced,

should connect

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of

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disk

drives,

Drive Assembly

unit and

the drive

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you

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pins 1

correct them

contact your

must be

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and 3,

suitable cleaning

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recongure the

and pins

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nearest HP

Replacement

replaced if

it fails

in need

2

and

4

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or

information

sales or

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device,

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jumpers.

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service

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the

oce

disk

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erify

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artwork

to

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the

the

the

the

front

CPU

four

the

here

.

Figure

the

power

panel

assembly

screws

ribbon

3-7.

A8

3.5"

Disk

cord.

assembly

(see

\How

anchoring the

cable

and power

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Drive

(see

Drive

Assembly

\How

to

to

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disk drive

cable

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CPU

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the

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anel

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CPU assembly

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.

Attenuator Replacement

See

\A5 Receiver Assembly Replacement."

AM Delay Modulator Replacement

See \A5 Receiver Assembly Replacement."

3-14 Assembly Replacement

Post

T

able

or

more

Repair Procedures

3-1

describes

of

the

the adjustments

analyzer's assemblies

and performance

.

T

able

3-1.

P

ost Repair

tests that

Procedures

are required

after replacing

one

Replaced Assembly Required A

A1

Front

P

anel

A2

CPU

A3

Fractional-N/Reference

None Functional

Re-load

correction

OR

(if

CCs

are not

LO

P

ower

ux

Input

P

ower

Amplitude

Amplitude

Frequency

Amplitude

Delay

UX

Input

Correction

Correction

Gain

Detector

Correction

2

A

ccuracy A

A

Switched

External

Source

B

Reection

R*

R*

B*

AM

A

Frequency

Fractional-N V

Fractional-N

A4

Source

A5

Receiver

A6

P

ower

Supply

A7

Display

A8 3.5"

Internal Disk Drive

Attenuator Source P

LO

P

ower

P

ower

Amplitude

Delay

P

ower

ux

Input

P

ower

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Amplitude

Frequency

Amplitude

Delay

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Correction

2

Correction

Gain

Correction

Detector

Correction

2

Source

B

Reection

AM

LO

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A

External

Source

B

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R*

R*

B*

AM

None P

Check

display intensity

None Functional test

ower Correction

Reection Correction

AM Delay Assembly Source P

ower Correction

Reection Correction

AM Delay

2

constant

available):

1

Correction

Correction

Correction

Correction

Correction

Response

Correction

CO A

djustment

Spur

A

djustment

1

Correction

Correction

1

Correction

Correction

Correction

Correction

Correction

Response

Correction

djustments

le

Correction

djustment

Correction

from

disk

Suggested V

T

est

Only

Functional

tests

only

OR:

Broadband

Dynamic

Absolute

Frequency

A

ccuracy

P

ower

Accuracy

Directivity

P

ower

Flatness

Frequency

A

ccuracy

Spurious Signals

P

ower

Range

and

Spurious

P

ower

Flatness

Broadband

Dynamic

Spurious

Absolute

Signals

Frequency

A

ccuracy

Signals

P

ower

Flatness

A

ccuracy

Directivity

Gain

Compression

Noise

Floor

ower-on

self

tests

Functional

tests only

only

Power Flatness

Directivity

Power Flatness

AM Delay Modulator

erication

Response

Response

T

ests

1

Not required for HP 8713C and HP 8714C analyzers

2

Only required for analyzers with Option 1DA or 1DB.

.

Assembly Replacement 3-15

How to

Refer

to

Chapter

1.

Use

the

2.

State

the

3.

A

ddress

\Safety

T

o

order

parts

description

Order P

7,

part

number listed.

quantity

the

order to

,

W

arranty

not listed,

and

function

arts

\Parts

List." Identify

desired.

the nearest

, and

Assistance" chapter

include the

of

the part,

the part

and its

Hewlett-Packard

.

analyzer model

and quantity

desired.

part number

sales or

number,

service

complete

.T

o order

oce

analyzer

.

See

the

T

able

serial

part:

9-1

number

in

the

,

Save

If

Money by

you

need

to

replace

(rebuilt-exchange)

trade-in

designated

Save

T

o

PST

manual.

charge

oce

order

.

Y

ou

.

.

basis

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parts

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our-day

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See

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.

They

by

as

contact

able

Ordering

assembly

meet

in

the

Calling

fast

as

HP

delivery

of

the

9-1

in

R-E

an

assembly

.

These

all

factory

\P

arts

List"

(800)

possible

parts

,

call

specialists

is

standard; one-day

United States

the \Safety

(Rebuilt-Exchange)

and

would

factory-repaired,

specications

chapter

like

to

tested

required

.

227-8164

the

above number

with

direct

on-line

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, contact

,

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arranty

your nearest

,

and

Assistance"

Assemblies

save

money

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assemblies

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new

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chapter

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is

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ackard

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Friday,

6AM

parts listed

for

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sales

or

on

a

are

to

5

PM

in

this

additional

service

3-16 Assembly Replacement

4

Troubleshooting

Introduction

This

chapter is

describes

Category

Dead

No

display

Unreadable

Error

Category

No

error

at

and

Category

Inaccurate

Category

P

eripheral

or no

message/code

divided into

the problem

1F

ailures:

response

display

2

F

ailures:

message

centered

3

F

4

Failures:

,

ailures:

(but

reasonably

but

around

device problems

four main,

you are

displayed

nonfunctional

0

dB).

and Block

symptom-related

observing, based

measurement (i.e

functional)

such

measurements

as:

Diagrams

sections

on

the

results

. through-line

.

of

.

Refer

your

to

the

section

initial

observation.

transmission

that

trace

is

best

not

HP-IB

printer

keyboard

General

W

arning

Caution

problems

problems

problems

Notes

Always

assembly

unplug

.

the analyzer's

The preset power level is

power level to 0 dBm if necessary

line power

before removing

user-denable. When pressing

.

or installing

4

PRESET

5

, change the

an

Troubleshooting and Block Diagrams 4-1

Caution

If

you

have

The

troubleshooting

the

same

an

preset

HP

8730A,

procedures

state

as

please

a

standard

read the

require

the

HP

network analyzer

following information

8730A

tuner analyzer

.

carefully.

to have

Caution

Instead

state

of

of

the

analyzer:

4

SYSTEM

N

N

N

N

NN

NN

NN

NN

N

N

N

N

N

N

N

N

N

Service

NN

NN

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

Inst State

T

o

If

return

you

your

need

workstation

electrostatic

using

the

4

PRESET

HP 8730A

N

N

N

N

N

Service

OPTIONS

N

N

N

N

5

N

N

N

N

NN

NN

NN

NN

N

N

N

N

N

N

N

N

N

N

N

Utilities

NN

NN

NN

NN

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

NN

Utilities

tuner

analyzer

to disassemble

and

use

a

discharge

5

key

,

tuner analyzer

N

N

N

N

N

N

N

NN

NN

NN

NN

N

N

N

N

N

N

N

NN

NN

NN

NN

N

N

N

N

N

N

N

N

N

N

NN

N

N

NN

N

N

NN

N

Next

N

N

N

N

N

N

N

Menu

NN

NN

N

N

N

N

N

N

N

N

N

N

Preset to

to

its

the instrument,

grounded

(ESD).

wrist strap

See

press the

to the

N

N

N

N

NN

NN

N

N

NN

N

N

N

N

N

Next

N

N

N

N

N

N

N

N

NN

NN

NN

NN

N

N

original

Figure

following keys

preset state

NN

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

Menu

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

N

8711C

preset

be sure

to prevent

4-1.

state

to

of a

,

press

work

damage

to change

the preset

standard network

5

.

antistatic

at

4

PRESET

an

from

Insert

artwork here

.

Figure

4-1.

Example

of

an

Antistatic

W

orkstation

4-2 Troubleshooting and Block Diagrams

For

disassembly procedures

, see

\Assembly Replacement."

Warning

Before

include:

bent

no

solder

cold

Service

The

service

are

useful

An

extender

outside

An

HP-IB connector

board

assembly is

Two

SMB extension

A

modied

An

IC

extractor

Some

injury

replacing an

pins on

solder

in

joints

ICs

holes

Kit

kit

(HP

for

adjusting

board

the

analyzer

5/16-inch

tool

parts

in

.

assembly,

around

part

number

and

servicing

assembly

chassis

extender that

attached to

cables,

wrench

for

removing

the

analyzer

inspect

the

edges

08712-60012)

that

allows you

.

allows

the analyzer

12

inches

for

better

ICs

the

of

the

long

such

have

board

shields

for the

analyzer.

to operate

you

to

.

(30

cm).

access

as

the

sharp

for

edges

obvious

HP analyzers

The following

mate

an

to

SMA

cable

U335

.

Work

,

easy-to-x

parts are

selected

HP-IB

nuts

bootROM.

carefully to

defects

contains several

included:

internal

cable

board

when

the

.

avoid

.

Examples

parts

assemblies

extender

that

A

6-inch

A

non-shielded

operated

A

voltage

6

24

mV

,

A

\minimum

(150-mm)

display

outside

reference

and

+10

conguration"

semi-rigid

ribbon

the

chassis

source

V

supplies

coaxial

cable

.

used

to

.

bootROM.

extension

used

to

perform

cable

connect

several

.

the

display

adjustments

when

.

The

the

A2

source

CPU

board is

provides

6

0.5 V

,

Troubleshooting and Block Diagrams 4-3

How

to Use

The

A2, A3,

the

extender board.

assembly

The

.

supplied display

connected

The

SMB

extension

assemblies

The

to

make

extender

T

o

use

1.

Loosen

2.

Slide

3.

Attach

4.

Align

A4

.

source

the

board.

the

the

the

tightened

5.

Attach

The

board

top

half

of

analyzer

.

the Extender

A4,

and

to

the

extender

cables

and

A5

analyzer

extender

the

two

screws

cover

to

the

lower

hold-down

suciently

the

two ribbon

under

the

test plugs

extender

A5

board

This

can

ribbon

cable

board.

may

receiver

fully

operational

board,

half

the

follow

on

right

of

the

the

screws

.

cable connectors

into the

assembly and

Board

assemblies

be

very

is

needed

be

needed

assemblies

these

back

and

remove

extender

and

tighten

96-pin

can

all

helpful

if

to

for

the

will

while

either

instructions:

cover

.

it.

assembly

securely;

as

shown

connector

the

attached

be

operated

you

are

connect

A3

need

two

of

to

.

board

outside

troubleshooting

the

display

of

if

the

the chassis

a

A2

fractional-N/reference

exible

these

where

the

board will

in

Figure

When

under

SMA

boards are

the

cover

not function

4-2.

properly

test

RF

connected to

was

connected,

can

problematic

CPU assembly

or

A4

source

cables

(not supplied)

previously

if not

both

rest

on

top

with

board

the

located.

the

of

the

is

Note

If

it

is

necessary

extender board,

in order

to

make

to

connect

then

the

a

connection.

a

computer to

HP-IB

connector

the

analyzer

extender

while

(supplied)

using

will

the

be

required

4-4 Troubleshooting and Block Diagrams

Insert

artwork

here

.

Figure 4-2.

Initial

Prepare

1.

2.

3.

Switch

1.

Observations

the

analyzer

Disconnect

Remove

Connect

ON

the

a

the

Immediately

briey

and

for

all

accessories

disk

(if

any)

known-good

analyzer

after

a

\beep" is

and

the

-

Normal

observation

and

from

cable

watch

analyzer's line

audible

2. The CRT lists the bootROM self-tests

warm up

.) If all bootROM self-tests pass

Connecting

P

ower-up

by

performing

peripherals

the

internal

between

for the

power is

from

the

being performed. (The CRT may take a few seconds to

the

Extender

Sequence

these

steps:

.

disk

drive

.

the

RF

OUT

and

RF

IN

proper power-up

switched on,

CPU

.

sequence:

the disk

, the analyzer beeps twice

Board

ports

.

.

drive light

activates

3. The disk drive light illuminates briey and the rmware loads from ROM.

4. The analyzer runs all of the remaining self-tests and the CRT displays the P

of the self-tests

5. During the next few

a.

Initializing

b.

Calculating correction coefficients

c.

Initializing detector corrections

.

seconds, these messages appear on CRT:

ASS/FAIL status

d. Other messages may appear briey, depending on the analyzer's state at the time that the

power was switched o.

Troubleshooting and Block Diagrams 4-5

6. Information

The graticule

Press

trace (a

IN port

If the

4

PRESET

analyzer will

5

at line

is good

selector (below

If

the

analyzer

problem

persists

Note

on the

model number

may also

(see

the cautions

at 0

dB).

and securely

not

switch

AC

power

does

not

go

,

refer

to

If

any

error

after

displaying

analyzer

,

operation

only

as

a

, rmware

be displayed,

on pages

If

it

does

not,

connected.

on,

check

plug)

is

set

correctly

through

the

is

it

will

may

the

section

generated

the

error

attempt

result

titled

.

troubleshooting

revision, and

depending on

4-1

and

4-2).

ensure

the

steps

the

A

C

.

Check

above

line

\Category

during

message

to

The

the

.

resume

option

aid.

installed

the analyzer's

The

display

cable

connecting

power

.

Make

the

fuse

,

if

any

error

1

F

ailures

power-up

At

this point,

power-down

should

the

sure

.

messages

."

sequence

if you

operation. However

of

ignoring the

error message

options

show

RF

OUT port

that

the

appear

, the

press any

,

erroneous

will

be

displayed.

state

.

a

transmission

to the

line

voltage

,

or if

the

analyzer will

key

on

or unstable

is provided

RF

halt

the

Operator's

P

erform

a

simple

not

the

test

involved,

appropriate

Check

Operator's

of

the

analyzer's

duplicate

section

in

Check

the

this

procedure

measurement

operating

chapter

conditions

if

the

in

the

capability

problem

\P

erformance

.

under

which

reoccurs

T

ests"

chapter

If

the

test

passes

the

system

of

this guide

and

peripherals are

failed

and

refer

.It

to

is

the

.

4-6 Troubleshooting and Block Diagrams

Category 1

Unreadable

This

category of

A

defective A6

A

defective A2

P

oor contact

A

digital failure

A

defective

display

Failures

Display,

failure usually

power supply

CPU

with the

in any

rear

board

- Dead

or

Error

involves one

plane

connector

assembly

or No

Messages

of the

board

Response,

on

following:

No Display

the

Display

,

Troubleshooting

Begin

here

if

the

problem

Check

Switch

hole

If

This

conrm

If

Check

provided

supply

If

Check

remove

switch

With

analyzer's

the

the

in the

the green

represents

that

neither

the

line

if

.

the

green

the

line

the

to

the

the

power

line

Rear

P

analyzer's

rear panel

LED is

a

normal

the

power

LED

is

on:

fuse

,

necessary

LED

is

voltage

power

supply/display

power

supply/display

power

A6

anel

line

to

on and

supplies

located

.

Check

on,

selector

supply

ON.

P

ower

appears

LEDs

power

the

right

the

condition.

are

in

a

the

the

red

switch,

assembly

assembly

Supply

to

be power

ON.

Check

of

the

red

LED

Continue

functioning

holder

A

C

power

LED

is

assembly

is connected.

Assembly

the

A

C

power

is

above

line

on

located

and

outside

supply related.

condition

plug.

o:

with

\Measure

properly

the

A

C

power

.

If

the

LEDs

steadily

below

,

and

the

make sure

the analyzer

Problems

of

the

two LEDs

the

P

.

jack,

are still

the fan

A

C

power

that the

, plug

ower

Supply

and

replace

o,

replace

is o:

jack. If

cable from

it in

and switch

visible

V

it

it is

the

through

oltages"

with

the

the

power

correct,

on/standby

the

the

to

spare

If

the

fan

is

still

o:

Check the four green power supply LEDs visible from the right side of the display enclosure

(as viewed from the front). If the LEDs are on, the fan is probably broken. Replace the

the entire power supply assembly

If the green

Go to \Measure the

LEDs to be on when

LED is on, the red LED is on steadily

Power Supply V

the power switch is in ST

.

, and the fan is on:

oltages." Note that it is normal for both the green and red

ANDBY, but not when the switch is in the ON

fan or

position.

If the green LED is on, and the red LED is blinking:

The power supply is in shutdown. Remove the power supply/display assembly from analyzer,

plug it in and switch the analyzer's line power ON.

Troubleshooting and Block Diagrams 4-7

If

the red

LED is

still

blinking:

Replace

If

Go

the power

the red

to the

assembly).

Measure

Remove

are

four

the

main

nonvolatile

within

5%

Insert

supply

LED

is

now

following

the

P

ower

section

backplane

supplies

SRAM

of

on

nominal

artwork here

.

o:

Supply

cover

,

each

the

CPU

for

all

.

\Remove

V

oltages

from

with

its

board.

but

the

Assemblies"

the

rear

own

return,

Measure

+13

V

panel.

the

supply

(the

supply

Figure

plus

the

voltages

.

is

4-3

shows

standby

with

being

loaded

the

pinout

voltage

a voltmeter

down

by

another

for

J1. There

which powers

.V

alues should

the

be

Figure

If

the

voltages

Remove

line

enclosure

the

power

ON.

(as

power

viewed

If one or more LEDs

Replace the power supply

4-3.

are

not

correct:

supply/display

Check

the

from the

are o:

P

ower

Supply

four power

front).

.

Connector

assembly

supply LEDs

,plug

,

as

Viewed

in the

AC

visible from

power,

the right

from

and

Rear

switch

side

P

anel

the

of

analyzer's

the

If all the LEDs are on:

Reseat the power supply/display assembly

panel. Measure the voltages again. If the problem persists

, making sure there's a good connection to the rear

, check connectors on the power

supply and on backplane board.

If the voltages are correct, but there is a probe power problem:

Remove the front panel and check the fuses on the back of the front-panel PC board.

Continue with the \Troubleshooting Digital Group Problems" section.

display

4-8 Troubleshooting and Block Diagrams

Remove

If

your problem

probable

caused

make

note

guide

that one

by the

sure it

which one

for

Note

Assemblies

has

not

of

the

other

boards

is

rmly

is

causing

disassembly

It

is

possible for

break

been

solved

assemblies

having

seated.

If

the

shutdown.

instructions

o

and cause

at

this

is

causing

bad

contact

the

problem

.

the exible

a short,

point

in

the

the

power

with

persists

Refer

to

the

metal \ngers"

so check

troubleshooting

supply

the

backplane

,

remove

the

\Assembly

or a

for loose

process

to

shut

down.

.

Give

assemblies

Replacement"

backplane

pieces

of

each

one at

connector

metal.

it is

highly

This may

board a

a time

chapter

be

push to

,and

of

pin

to

this

Verify

that none

common cause

Suggested

1.

A1

2.

A7

see

shutdown,

Cable

is

3.

A3

4.

A4

5.

A5

6. A2

order

for

assembly

front

panel

assembly

display

if

rmly

assembly

the

power

open

Locations"

seated.

(remove

supply

the

display

in

the

fractional-N/reference

source

receiver

CPU/A8

assembly

assembly

disk

drive

is

\P

assembly

Troubleshooting Digital

Error

If

there

During

is

no

P

ower-up

beep

at

power-up

of the

of shorted

removal

the

still

enclosure

arts

ribbon

shut

List"

pins

supplies or

(easiest

cable

down).

cover

chapter

on

assembly

Group Problems

,

but

the

CRT

the

to

hardest):

while

If

A7

(see

of

this

display

back-panel

other

nonfunctional

it

is

outside the

display

T

able

assembly

7-14

guide)

is

normal:

connector

titled

\A7 Display

and make

are

bent.

This

problems

.

analyzer; reinstall

appears

to

be

Assembly and

sure the

board assembly

is

causing

a

and

The

problem

generator

is

probably

ICs

(U500-U503,

in

the

sound

U515-U517,

generator

and

U300)

or speaker

and

the

on the

CPU board.

speaker (LS501),

Check

or replace

the

sound

the CPU

board.

If

there

is

no

beep

at

power-up and

no

CRT

display:

The problem is most likely one of two conditions:

No power to CPU board (no CPU LEDs on).

Another fault in the CPU assembly

Look through the TEST RESUL

of the LEDs are lit, push the CPU

a good connection. Note that it is also possible

.

TS hole on the rear panel to see if the LEDs are lit. If none

board all the way into the backplane connector to ensure

for the board to have a bad or intermittent

backplane connection and yet receive enough power to activate the LEDs.

If the LEDs are on, remove the CPU board (remove rear panel screws rst). Then reinstall

the CPU board, making sure to push it all the way in so that it connects properly with the

backplane. If there is still no beep at power-up and CPU error code LED continues to display

an \8," replace the entire CPU board.

Troubleshooting and Block Diagrams 4-9

If

the disk

Make

sure the

CPU

board. Check

on

the CPU

CPU

. Otherwise

If

there

A

djust

CRT

display

the

problem

panel

with

If

the

VIDEO

The

problem

If

the

VIDEO

The

video

If

an

error

drive light

.

is

no

the

front

,

a

circuitry

power

If

a

3.5"

,

replace

CRT

panel

remove

persists

VGA

OUT

is

most

OUT

occurs

(3-wire)

the

cables

disk

display:

intensity

the

,

check

display

COLOR

likely

COLOR

is

probably

while

does

not

.

drive

the

disk

display

the

.

V

either

V

rmware

illuminate:

cable

and

The

problem

controller

drive

knob

and

check

output

GA

signal

the

GA

signal

bad.

Replace

ribbon

can

error

.

clockwise

the

from

the

appears

display

appears

is

being

cable

be

either

message

to

increase

ribbon

VIDEO

good:

assembly

bad:

the

CPU

loaded

are

connected

appears

cable

OUT

or

the

or

conrm

(after 2

a

bad

disk

the

brightness

connection

COLOR

ribbon

beeps are

from

drive or

during

VGA

cable.

video

the

disk

bad drive

power-up,

.

If

there is

to

the

connector

signals

.

heard):

drive to

circuitry

replace the

still no

CPU board.

on the

the

If

rear

Reload

switching

process

If

If

The

T

display the digits 0 through 9. The red and green

LED when viewed from the rear panel.

Test Status LEDs code

the

rmware

the

analyzer's

will

take

the

analyzer

Cycle

the

the

After

about

8

beep

,

press

4

The

analyzer will

the

SRAM. Answer

a

self-test

analyzer

An

error

\T

est

est

Status

Red LED and 7-segment LED on: test numbers 1 through 9, as shown on 7-segment display

Green LED and 7-segment LED on: tests 10 through 19. A

7-segment display

Only green LED on: all self-tests passed.

fails:

indicates

message

Status"

LEDs

from

a few

locks

up

analyzer's

seconds

PRESET

5

pause

appears

LEDs

.

These include

.

disk

line power

minutes.

during or

power

,

the

several

after

YES

by

the

number

display

.

by

inserting

W

atch

after

.

analyzer

times

performing

pressing

on

the

a

number

one

ON. Press

the

the

will

.

the

of

the

rst

CRT

,

if

code

red

LED

the

rmware

5

4

BEGIN

CRT

for

information

rmware

emit

a

double

the

CPU

5

4

BEGIN

possible

key.

failed

.

corresponding

,

one

green

LEDs are located to the left of the 7-segment

disk into

at

the

loading,

beep

main

self-tests

Reload

self-test

LED

the internal

Load firmware?

during

try

clearing

.

Immediately

the

in

two

to

the

,

and

dd 10 to value shown on

the

and

ask

rmware

ways:

number

a

7-segment

loading

the

after

if

from

of

the

disk drive

query.

SRAM:

this

you

disk

failed

LED which

The

procedure

double

want

again.

and

to

test.

.

zero

.

Table 4-1 lists the power-up self-tests by number, with a description of the error messages

and troubleshooting information. Some of the troubleshooting hints may require the use of

a service extender board. Reference designators for main ICs are noted on the PC boards.

Note that replacing the defective board is always an option; you need not troubleshoot to the

component level.

4-10 Troubleshooting and Block Diagrams