Agilent 70902A Service Guide

Service Guide

HP 70902A

IF Section

ABCDE

HP Part No. 70902-90079

Printed in USA December 1992

Notice.

The information contained in this document is sub ject to change without notice.

Hewlett-Packard makes no warrantyofany kind with regard to this material, including

but not limited to, the implied warranties of merchantability and tness for a particular

purpose. Hewlett-Packard shall not be liable for errors contained herein or for incidental or

consequential damages in connection with the furnishing, p erformance, or use of this material.

c



Copyright Hewlett-Packard Company 1988, 1992

All Rights Reserved. Reproduction, adaptation, or translation without prior written

permission is prohibited, except as allow

1212 Valley House Drive, Rohnert Park, CA 94928-4999, USA

ed under the copyrightlaws.

Certification

Hewlett-Packard Company certies that this product met its published specications at the

time of shipment from the factory. Hewlett-Packard further certies that its calibration

measurements are traceable to the United States National Institute of Standards and

Technology, to the extent allowed by the Institute's calibration facility, and to the calibration

facilities of other International Standards Organization members.

Warranty

This Hewlett-Packard instrument product is warranted against defects in material and

workmanship for a p eriod of one year from date of shipment. During the warranty period,

Hewlett-Packard Company will, at its option, either repair or replace products which proveto

be defective.

For warranty service or repair, this product must be returned to a service facilit y designated

by Hewlett-Packard. Buyer shall prepay shipping charges to Hewlett-Packard and

Hewlett-Packard shall pay shipping charges to return the product to Buyer. However, Buyer

shall pay all shipping charges, duties, and taxes for pro ducts returned to Hewlett-P

ackard

from another country.

Hewlett-Packard warrants that its software and rmware designated by Hewlett-Packard for

use with an instrument will execute its programming instructions when properly installed on

that instrument. Hewlett-Packard does not warrant that the operation of the instrument, or

software, or rmware will be uninterrupted or error-free.

Limitation of Warranty

The foregoing warranty shall not apply to defects resulting from improp er or inadequate

maintenance by Buyer, Buyer-supplied software or interfacing, unauthorized modication or

misuse, operation outside of the environmental specications for the product, or improper

site preparation or maintenance.

NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. HEWLETT-PACKARD

SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY

AND FITNESS FOR A PARTICULAR PURPOSE.

Exclusive Remedies

THE REMEDIES PROVIDED HEREIN ARE BUYER'S SOLE AND EXCLUSIVE

REMEDIES. HEWLETT-PACKARD SHALL NOT BE LIABLE FOR ANY DIRECT,

INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER

BASED ON CONTRACT, TORT, OR ANY OTHER LEGAL THEORY.

Assistance

Product maintenance agreements and other customer assistance agreements are available for

Hewlett-Packardproducts.

For any assistance, contact your nearest Hewlett-Packard Sales and Service Oce.

iii

Safety Notes

The following safety notes are used throughout this manual. Familiarize yourself with eachof

the notes and its meaning before operating this instrument.

Caution

Warning

Instruction

Manual

L

Caution

correctly performed or adhered to, could result in damage to or destruction

of the instrument. Do not pro ceed beyond a

conditions are fully understo od and met.

Warning

correctly performed or adhered to, could result in injury or loss of life. Do

not proceed beyond a

understood and met.

The

necessary for the user to refer to the instructions in the man

denotes a hazard. It calls attention to a procedure that, if not

caution

denotes a hazard. It calls attention to a procedure which, if not

instruction manual

warning

symbol. The product is marked with this symbol when it is

note until the indicated conditions are fully

sign until the indicated

ual.

iv

General Safety Considerations

Warning

Warning

Caution

Before this instrument is switchedon

through the protective conductor of the ac power cable to a socket outlet

provided with protective earth contact.

Any interruption of the protective (grounding) conductor, inside or outside

the instrument, or disconnection of the protective earth terminal can result in

personal injury.

There are many points in the instrument which can, if contacted, cause personal

injury. Be extremely careful.

Any adjustments or service procedures that require operation of the instrument

with protectivecovers removed should be performed only by trained service

personnel.

Before this instrument is switche

has been adapted to the voltage of the ac power source.

Failure to set the ac power input to the correct voltage could cause damage to

the instrument when the ac p ower cable is plugged in.

, make sure it has been properly grounded

d on,

make sure its primary po

wer circuitry

v

Servicing at a Glance

vi

The HP 70902A IF section is an IF module that is used in HP 70000 Series mo dular spectrum

analyzer systems. A standard mo dular sp ectrum analyzer system includes a mainframe with

an RF section, IF section , lo cal oscillator, an optional display, and an optional precision

frequency reference.

Documentation and software supplied

This service guide is part of an Option 915 package which includes:

HP 70902A Service Guide

HP 70902A Component Level Information Packages

Five disks containing mo dule verication software.

Tools and equipment needed

Before servicing, refer to Chapter 2 for a list of the tools and equipment that may be needed

during servicing.

Antistatic precautions

Electrical components are easily damaged by small amounts of static electricity. If possible,

work at a static-safe work station. For further information, refer to \Electrostatic Discharge

Information" in Chapter 2.

vii

In This Book

This bo ok is part of an Option 915 documentation package which consists of a service guide,

a component-level information packages manual, and software disks that contain mo dule

verication software.

It describes all of the service procedures necessary to test, adjust, troubleshoot, and repair

an HP 70902A IF section in an HP 70000 Series modular spectrum analyzer system. Each

module in the HP 70000 Series mo dular spectrum analyzer system has its own service guide.

For further information related to the servicing of additional and alternate modules that can

be used in this system, refer to that module's service guide.

Service Guide

Chapter 1 answers the questions \What is service?" and \When is service needed?" It then

describes the procedures used to return your HP 70902A IF section to Hewlett-Packard for

servicing.

Chapter 2 contains a list of recommended test equipment, a listing of a general service kit

for HP 70000 modular measurement system mo dules, do cumentation on the HP 70902A

Option K01 IF section, and information on electrostatic disc

harge (ESD).

Chapter 3 contains information needed to use module verication software.

Chapter 4 contains information on the tests used to verify mo dule op eration.

Chapter 5 contains information about the pro cedures needed to adjust the mo dule after a

repair.

Chapter 6 contains mo dule-level troublesho oting pro cedures, error-code denitions, and

block diagrams.

Chapter 7 contains instructions for removal and replacement of all major assemblies.

Chapter 8 contains information needed to order mechanical parts and replacement board or

cable assemblies for the module.

Chapter 9 contains gures identifying all major assemblies and cables.

An index is also added at the end of this service guide to aid the user in nding key items

of interest.

Component-Level Information Packages

The component-level information packages manual contains packets of comp onent-level

repair information for each HP 70902A IF section board assembly that has eld-replaceable

parts. Each packet includes the parts list, comp onent-location drawing, and schematics for

a specic board-assembly part number. This chapter also contains a table cross-referencing

board-assembly version and mo dule serial prex.

Before you begin servicing

,you must b ecome familiar with mo dule verication software. For

information on how to use mo dule verication software, refer to Chapter 3.

viii

Contents

1. Getting Started

What is servicing? . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

When is servicing needed? . . . . . . . . . . . . . . . . . . . . . . . 1-2

If you want Hewlett-Packard to service your HP 70902A IF section . . . . . 1-3

Determining your HP 70902A IF section's serial number . . . . . . . . . 1-3

Returning your HP 70902A IF section for service . . . . . . . . . . . . 1-4

2. Recommended Test Equipment

Service Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

21.4 MHz Notch-Filter Do cumentation . . . . . . . . . . . . . . . . . . 2-9

Electrostatic Discharge Information . . . . . . . . . . . . . . . . . . . 2-11

Reducing ESD Damage . . . . . . . . . . . . . . . . . . . . . . . 2-12

PC Board Assemblies and Electronic Comp onents . . . . . . . . . . . 2-12

Test Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Static-Safe Accessories . . . . . . . . . . . . . . . . . . . . . . . . 2-13

3. Module Verication Software

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Computer Compatibility. . . . . . . . . . . . . . . . . . . . . . . . 3-2

Computer Language Compatibility . . . . . . . . . . . . . . . . . . 3-2

Printer Compatibility . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Typographic Conventions . . . . . . . . . . . . . . . . . . . . . . . 3-3

Conguring the Hardware . . . . . . . . . . . . . . . . . . . . . . . 3-4

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

Installing Module Verication Software . . . . . . . . . . . . . . . . . 3-5

Software Version . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

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

Module Verication Software Overview . . . . . . . . . . . . . . . . . 3-7

Testing Multiple Mo dules . . . . . . . . . . . . . . . . . . . . . . 3-7

Error Messages or Warnings Dened . . . . . . . . . . . . . . . . . 3-7

Final Tests Dened . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Single Tests Dened . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Printing Test Results . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Edit and Command Screen Menus . . . . . . . . . . . . . . . . . . 3-9

Edit Screen Menus . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Command Screen Menus . . . . . . . . . . . . . . . . . . . . . . 3-10

Cursor Keys and Menu Selections . . . . . . . . . . . . . . . . . . 3-11

Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Main Menu Softkeys . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Mass Storage Menu . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Contents-1

Mass Storage Menu Edit Screen . . . . . . . . . . . . . . . . . . 3-12

Mass Storage Menu Command Screen . . . . . . . . . . . . . . . . 3-12

Parameter Menu . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Parameter Menu Edit Screen . . . . . . . . . . . . . . . . . . . . 3-13

Parameter Menu Command Screen . . . . . . . . . . . . . . . . . 3-14

Equipment Menu . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Equipment Menu Edit Screen . . . . . . . . . . . . . . . . . . . . 3-14

Equipment Menu Command Screen . . . . . . . . . . . . . . . . . 3-15

Edit Calibration Data . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Edit Calibration Data Edit Screen . . . . . . . . . . . . . . . . . 3-16

Edit Calibration Data Command Screen . . . . . . . . . . . . . . . 3-17

HP-MSIB Address Menu. . . . . . . . . . . . . . . . . . . . . . . 3-17

Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Test Menu Command Screen . . . . . . . . . . . . . . . . . . . . 3-19

Error and Status Messages . . . . . . . . . . . . . . . . . . . . . . . 3-25

4. Module Verication Tests

Preferred Frequency-Reference Connections . . . . . . . . . . . . . . . 4-2

1. FrontPanel LED Check. . . . . . . . . . . . . . . . . . . . . . 4-4

2. Diagnostic Detectors Check . . . . . . . . . . . . . . . . . . . . 4-5

3. 18.4 MHz Oscillator StabilityTest . . . . . . . . . . . . . . . . . 4-7

4. DUT Calibration . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

5. Average Noise Test . . . . . . . . . . . . . . . . . . . . . . . . 4-12

6. Corrected Sensitivity Test . . . . . . . . . . . . . . . . . . . . . 4-14

7. Third-Order Intercept Test . . . . . . . . . . . . . . . . . . . . 4-16

8. Spurious Responses Test . . . . . . . . . . . . . . . . . . . . . 4-18

9. Resolution Bandwidths Test . . . . . . . . . . . . . . . . . . . . 4-20

10. Video Bandwidths Test . . . . . . . . . . . . . . . . . . . . . 4-23

11. Module Gain Test . . . . . . . . . . . . . . . . . . . . . . . . 4-25

12. Calibration Attenuator Test . . . . . . . . . . . . . . . . . . . 4-27

13. Corrected Module FidelityTest . . . . . . . . . . . . . . . . . . 4-29

14. Crystal Spurs Test . . . . . . . . . . . . . . . . . . . . . . . . 4-32

15. Rear-Panel Auxiliary Port Test . . . . . . . . . . . . . . . . . . 4-34

16. Front-Panel Auxiliary Port Test . . . . . . . . . . . . . . . . . . 4-37

17. Auxiliary Video Test . . . . . . . . . . . . . . . . . . . . . . . 4-41

18. Limited IF Output Check . . . . . . . . . . . . . . . . . . . . 4-45

5. Adjustment Pro cedures

1. 21.4 MHz Input Bandpass Filter Adjustment. . . . . . . . . . . . . . 5-2

2. LC Bandwidth Filter Adjustment . . . . . . . . . . . . . . . . . . 5-4

3. Crystal Bandwidth Filter Adjustment. . . . . . . . . . . . . . . . . 5-6

4. Bandwidth Filter Amplitude Adjustment . . . . . . . . . . . . . . . 5-8

5. Step Gain/Calibration Attenuator Adjustment. . . . . . . . . . . . . 5-10

6. Log Amplier Adjustment. . . . . . . . . . . . . . . . . . . . . . 5-12

7. Module Gain Adjustment . . . . . . . . . . . . . . . . . . . . . . 5-14

8. Bandwidth Filter Final Adjustment. . . . . . . . . . . . . . . . . . 5-16

9. Bandwidth Filter DAC Optimization . . . . . . . . . . . . . . . . . 5-19

Contents-2

6. Troubleshooting

Adjustment Reference-Designation Information . . . . . . . . . . . . . . 6-2

Power-Up Problems . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Error Co des . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

Usage/Operating Errors . . . . . . . . . . . . . . . . . . . . . . . 6-5

Hardware Warning Errors . . . . . . . . . . . . . . . . . . . . . . 6-5

Hardware Broken Errors . . . . . . . . . . . . . . . . . . . . . . . 6-5

Circuit Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Signal Path Description . . . . . . . . . . . . . . . . . . . . . . . 6-6

A1 Board Assembly Signal Path . . . . . . . . . . . . . . . . . . 6-6

A2 Board Assembly Signal Path . . . . . . . . . . . . . . . . . . 6-6

A3 and A4 Board Assemblies . . . . . . . . . . . . . . . . . . . . 6-6

LC and Crystal Filter Description . . . . . . . . . . . . . . . . . . . 6-7

Troubleshooting the Board Assemblies . . . . . . . . . . . . . . . . . . 6-8

A1 Downconverter Board Assembly . . . . . . . . . . . . . . . . . . 6-8

Input Buer . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

21.4 MHz Level Detector . . . . . . . . . . . . . . . . . . . . . . . 6-8

18.4 MHz Lo cal Oscillator . . . . . . . . . . . . . . . . . . . . . 6-8

Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9

Step-gain Ampliers . . . . . . . . . . . . . . . . . . . . . . . . 6-9

1 dB, 2 dB, 4 dB, 8 dB, and

. . . . . . . . . . . . . . . . . . . . 6-11

Attenuator Control . . . . . . . . . . . . . . . . . . . . . . . . 6-12

Variable-Gain Amplier . . . . . . . . . . . . . . . . . . . . . . 6-12

A2 Log Amplier/Power Supply Board Assembly . . . . . . . . . . . . 6-12

Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

Log Amplier/Detection . . . . . . . . . . . . . . . . . . . . . . 6-13

Limited IF Output . . . . . . . . . . . . . . . . . . . . . . . . 6-13

Video Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16

A3 MSIB Control Board Assembly . . . . . . . . . . . . . . . . . . 6-18

HP-MSIB Interface . . . . . . . . . . . . . . . . . . . . . . . . 6-18

Diagnostics Interface . . . . . . . . . . . . . . . . . . . . . . . . 6-18

Central Processing Unit (CPU) . . . . . . . . . . . . . . . . . . . . 6-19

Calibration Attenuator Controls . . . . . . . . . . . . . . . . . . 6-19

Filter Controls . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20

A4 Front-Panel Board Assembly . . . . . . . . . . . . . . . . . . . 6-20

Troubleshooting Verication Test Problems . . . . . . . . . . . . . . . 6-21

Test 1. Front-Panel LED Check . . . . . . . . . . . . . . . . . . . 6-21

Test 2. DUT Calibration . . . . . . . . . . . . . . . . . . . . . . . 6-21

Test 3. Average Noise Test . . . . . . . . . . . . . . . . . . . . . . 6-21

Test 4. Corrected SensitivityTest . . . . . . . . . . . . . . . . . . . 6-21

Test 5. Third Order Intercept Test . . . . . . . . . . . . . . . . . . 6-22

Test 6. Spurious Responses Test . . . . . . . . . . . . . . . . . . . 6-22

Test 7. Resolution Bandwidths Test . . . . . . . . . . . . . . . . . . 6-22

Test 8. Video Bandwidths Test . . . . . . . . . . . . . . . . . . . . 6-22

Test 9. Diagnostic Detector Check . . . . . . . . . . . . . . . . . . 6-22

Level Detector 1 . . . . . . . . . . . . . . . . . . . . . . . . . 6-22

Level Detector 2 . . . . . . . . . . . . . . . . . . . . . . . . . 6-22

Test 10. Module Gain Test . . . . . . . . . . . . . . . . . . . . . . 6-22

Test 11. Calibration Attenuator Test . . . . . . . . . . . . . . . . . 6-23

Test 12. Corrected Module FidelityTest . . . . . . . . . . . . . . . . 6-23

Contents-3

Test 13. Crystal Spurs Test . . . . . . . . . . . . . . . . . . . . . 6-23

Test 14. Rear-Panel Auxiliary Port Test . . . . . . . . . . . . . . . . 6-23

Test 15. Front-Panel Auxiliary Port Test . . . . . . . . . . . . . . . 6-23

Test 16. Auxiliary Video Test . . . . . . . . . . . . . . . . . . . . 6-23

Test 17. Limited IF Output Check . . . . . . . . . . . . . . . . . . 6-23

Test 18. 18.4 MHz Oscillator Stability Test . . . . . . . . . . . . . . 6-23

Troubleshooting Adjustment Problems . . . . . . . . . . . . . . . . . . 6-24

Adjustment 1. 21.4 MHz Input Bandpass Filter Adjustment . . . . . . . 6-24

Adjustment 2. LC Resolution Bandwidth Filter Adjustment . . . . . . . 6-24

LC Center Frequency . . . . . . . . . . . . . . . . . . . . . . . 6-24

LC Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25

LC Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25

Adjustment 3. Crystal Resolution Bandwidth Filter Adjustment . . . . . 6-25

Crystal Symmetry and Dip . . . . . . . . . . . . . . . . . . . . . 6-25

Noise Check . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26

Crystal Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . 6-26

18.4 MHz Local Oscillator Frequency and Crystal Center . . . . . . . 6-26

Adjustment 4. Bandwidth Filter Amplitude Adjustment. . . . . . . 6-26

10 Hz Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . 6-27

Crystal to LC Filter Gain . . . . . . . . . . . . . . . . . . . . . 6-27

Adjustment 5. Step Gain/Calibration Attenuator Adjustment . . . . . 6-27

Step-Gain Ampliers . . . . . . . . . . . . . . . . . . . . . . . 6-27

Calibration Attenuators . . . . . . . . . . . . . . . . . . . . . . 6-27

Adjustment 6. Log Amplier Adjustment . . . . . . . . . . . . . . . 6-27

Adjustment 7. Module Gain Adjustment. . . . . . . . . . . . . . . . 6-28

Absolute IF Gain . . . . . . . . . . . . . . . . . . . . . . . . . 6-28

Total Mo dule Gain . . . . . . . . . . . . . . . . . . . . . . . . 6-28

Adjustment 8. Bandwidth Filter Final Adjustment . . . . . . . . . . . 6-28

Adjustment 9. Bandwidth Filter DAC Optimization . . . . . . . . . . . 6-28

7. Replacement Procedures

Module Right-Side Cover . . . . . . . . . . . . . . . . . . . . . . . 7-2

Module Version without Top Clamp . . . . . . . . . . . . . . . . . . 7-2

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Module Versions with Top Clamp . . . . . . . . . . . . . . . . . . . 7-3

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

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

Module Left-Side Cover . . . . . . . . . . . . . . . . . . . . . . . . 7-6

Module Version without Top Clamp . . . . . . . . . . . . . . . . . . 7-6

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

Module Versions with Top Clamp . . . . . . . . . . . . . . . . . . . 7-6

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

FrontPanel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8

Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10

Contents-4

A1 Downconverter . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13

A2 Log Amplier/Power Supply . . . . . . . . . . . . . . . . . . . . 7-15

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15

A3 MSIB Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17

A4 FrontPanel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20

8. Replaceable Parts

Overall Module Parts Identication Format . . . . . . . . . . . . . . . 8-2

Replaceable Parts List Format . . . . . . . . . . . . . . . . . . . . . 8-2

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

Direct Mail-Order System . . . . . . . . . . . . . . . . . . . . . . 8-3

Direct Phone-Order System . . . . . . . . . . . . . . . . . . . . . 8-4

Regular Orders . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

Hotline Orders . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

Module Bo dy/Cover/Top-Clamp Versions . . . . . . . . . . . . . . . . 8-5

Version 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

Related Parts . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

Retrot Information . . . . . . . . . . . . . . . . . . . . . . . . 8-5

Version 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

Related Parts . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6

Retrot Information . . . . . . . . . . . . . . . . . . . . . . . . 8-6

Version 3 (Preferred Replacement) . . . . . . . . . . . . . . . . . . 8-6

Serial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6

Related Parts . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6

Retrot Information . . . . . . . . . . . . . . . . . . . . . . . . 8-6

9. Major Assembly and Cable Lo cations

Index

Contents-5

Figures

1-1. Typical Serial Number Label . . . . . . . . . . . . . . . . . . . . . 1-3

2-1. 21.4 MHz Notch Filter, Schematic Diagram . . . . . . . . . . . . . . 2-9

2-2. Typical Filter Stopband . . . . . . . . . . . . . . . . . . . . . . . 2-10

2-3. Static-Safe Workstation . . . . . . . . . . . . . . . . . . . . . . . 2-11

3-1. Main Menu Softkeys . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

3-2. Mass Storage Menu and Parameter Menu Softkeys . . . . . . . . . . . 3-22

3-3. Equipment Menu and HP-MSIB Map Screen Menu Softkeys . . . . . . . 3-23

3-4. Test Menu Softkeys . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

4-1. Preferred Frequency-Reference Connections . . . . . . . . . . . . . . 4-3

4-2. LED Check Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

4-3. Diagnostic Detectors Check Setup . . . . . . . . . . . . . . . . . . . 4-6

4-4. 18.4 MHz Oscillator Stability Test Setup . . . . . . . . . . . . . . . . 4-8

4-5. DUT Calibration Setup . . . . . . . . . . . . . . . . . . . . . . . 4-11

4-6. Average Noise Test Setup . . . . . . . . . . . . . . . . . . . . . . 4-13

4-7. Corrected SensitivityTest Setup . . . . . . . . . . . . . . . . . . . 4-15

4-8. Third-Order Intercept Test Setup . . . . . . . . . . . . . . . . . . . 4-17

4-9. Spurious Resp onses Test Setup . . . . . . . . . . . . . . . . . . . . 4-19

4-10. Resolution Bandwidths Test Setup . . . . . . . . . . . . . . . . . . 4-22

4-11. Video Bandwidths Test Setup . . . . . . . . . . . . . . . . . . . . 4-24

4-12. Module Gain Test Setup . . . . . . . . . . . . . . . . . . . . . . . 4-26

4-13. Calibration Attenuator Test Setup . . . . . . . . . . . . . . . . . . 4-28

4-14. Corrected Module FidelityTest Setup . . . . . . . . . . . . . . . . . 4-31

4-15. Crystal Spurs Test Setup . . . . . . . . . . . . . . . . . . . . . . 4-33

4-16. Rear-Panel Auxiliary Port Test, Calibration Setup . . . . . . . . . . . 4-35

4-17. Rear-Panel Auxiliary Port Test, Measurement Setup . . . . . . . . . . 4-36

4-18. Front-Panel Auxiliary Port Test, Calibration Setup . . . . . . . . . . . 4-39

4-19. Front-Panel Auxiliary Port Test, Measurement Setup . . . . . . . . . . 4-40

4-20. Auxiliary Video Test, Calibration Setup . . . . . . . . . . . . . . . . 4-43

4-21. Auxiliary Video Test, Measurement Setup . . . . . . . . . . . . . . . 4-44

4-22. Limited IF Output Check Setup . . . . . . . . . . . . . . . . . . . 4-46

5-1. 21.4 MHz Input Bandpass Filter, Calibration Setup . . . . . . . . . . . 5-3

5-2. 21.4 MHz Input Bandpass Filter, Adjustment Setup . . . . . . . . . . . 5-3

5-3. LC Bandwidth Filter Adjustment Setup . . . . . . . . . . . . . . . . 5-5

5-4. Crystal Bandwidth Filter Adjustment Setup . . . . . . . . . . . . . . 5-7

5-5. Bandwidth Filter Amplitude Adjustment Setup . . . . . . . . . . . . . 5-9

5-6. Step Gain/Calibration Attenuator Adjustment Setup . . . . . . . . . . 5-11

5-7. Log Amplier Adjustment Setup . . . . . . . . . . . . . . . . . . . 5-13

5-8. Module Gain Adjustment Setup . . . . . . . . . . . . . . . . . . . 5-15

5-9. Bandwidth Filter Final Adjustment Setup . . . . . . . . . . . . . . . 5-18

5-10. Bandwidth Filter DAC Optimization . . . . . . . . . . . . . . . . . 5-21

7-1. Module Casting, Cover, and Top-Clamp Areas That Must MakeGood

Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

Contents-6

7-2. Module Right-Side Cover Removal/Replacement . . . . . . . . . . . . 7-5

7-3. Module Left-Side Cover Removal/Replacement . . . . . . . . . . . . . 7-7

7-4. FrontPanel Removal/Replacement . . . . . . . . . . . . . . . . . . 7-9

7-5. Rear Panel Removal/Replacement(1of2) . . . . . . . . . . . . . . . 7-11

7-5. Rear Panel Removal/Replacement(2of2) . . . . . . . . . . . . . . . 7-12

7-6. A1 Removal/Replacement . . . . . . . . . . . . . . . . . . . . . . 7-14

7-7. A2 Removal/Replacement . . . . . . . . . . . . . . . . . . . . . . 7-16

7-8. A3 Removal/Replacement(1of2) . . . . . . . . . . . . . . . . . . . 7-18

7-8. A3 Removal/Replacement(2of2) . . . . . . . . . . . . . . . . . . . 7-19

7-9. A4 Removal/Replacement . . . . . . . . . . . . . . . . . . . . . . 7-21

8-1. Overall Mo dule Parts Identication, FrontPanel . . . . . . . . . . . . 8-12

8-2. Overall Mo dule Parts Identication, Rear Panel . . . . . . . . . . . . . 8-13

8-3. Overall Mo dule Parts Identication, Top View . . . . . . . . . . . . . 8-14

8-4. Overall Mo dule Parts Identication, Bottom View . . . . . . . . . . . 8-15

8-5. Overall Mo dule Parts Identication, Side Views with Covers . . . . . . . 8-16

8-6. Overall Mo dule Parts Identication, Side Views without Covers . . . . . . 8-17

9-1. Major Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

9-2. Rear-Panel Connector \J" Designations . . . . . . . . . . . . . . . . 9-3

Contents-7

Tables

1-1. Packaging and Contents . . . . . . . . . . . . . . . . . . . . . . . 1-5

1-2. Hewlett-Packard Sales and Service Oces . . . . . . . . . . . . . . . 1-6

2-1. Recommended Test Equipment.. . . . . . . . . . . . . . . . . . . 2-1

2-1. Recommended Test Equipment(2of4) . . . . . . . . . . . . . . . . 2-2

2-1. Recommended Test Equipment(3of4) . . . . . . . . . . . . . . . . 2-3

2-1. Recommended Test Equipment(4of4) . . . . . . . . . . . . . . . . 2-4

2-2. Recommended Test Accessories . . . . . . . . . . . . . . . . . . . . 2-5

2-2. Recommended Test Accessories (2 of 3) . . . . . . . . . . . . . . . . 2-6

2-3. Recommended Test Accessories (3 of 3) . . . . . . . . . . . . . . . . 2-7

2-4. Contents of the HP 71000 system service kit (HP part number 71000-60002) 2-8

2-5. 21.4 MHz Notch Filter, Required Parts . . . . . . . . . . . . . . . . 2-9

2-6. Static-Safe Accessories . . . . . . . . . . . . . . . . . . . . . . . . 2-13

6-1. Cross Reference of Adjustment Names . . . . . . . . . . . . . . . . . 6-2

6-2. HP 70902A IF section LC and Crystal Filter Locations

. . . . . . . . . 6-7

6-3. A1 LC and Crystal Filter PIN Diodes . . . . . . . . . . . . . . . . . 6-9

6-4. A1 Filter-Shorting Control Lines and Diodes . . . . . . . . . . . . . . 6-9

6-5. Step-Gain Control Lines . . . . . . . . . . . . . . . . . . . . . . . 6-10

6-6. Step-Gain Amplier Settings . . . . . . . . . . . . . . . . . . . . . 6-11

6-7. Calibration Attenuator Control Lines . . . . . . . . . . . . . . . . . 6-12

6-8. A2 LC and Crystal Filter PIN Diodes

. . . . . . . . . . . . . . . . . 6-13

6-9. A2 Filter-Shorting Control Lines and Diodes . . . . . . . . . . . . . . 6-13

6-10. Video-Bandwidth Selection Control Lines . . . . . . . . . . . . . . . 6-14

6-11. Video-Bandwidth Control-Line Logic Settings (Firmware Versions Earlier than

850912) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15

6-12. Video-Bandwidth Control-Line Logic Settings (Firmware Versions 50912 and

Later) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16

6-13. A3U7 Inputs and Outputs . . . . . . . . . . . . . . . . . . . . . . 6-18

8-1. Reference Designations, Abbreviations and Multipliers (1 of 5) . . . . . . 8-7

8-1. Reference Designations, Abbreviations and Multipliers (2 of 5) . . . . . . 8-8

8-1. Reference Designations, Abbreviations, and Multipliers (3 of 5) .

8-1. Reference Designations, Abbreviations, and Multipliers (4 of 5) .

8-1. Reference Designations, Abbreviations, and Multipliers (5 of 5) .

. . . . . 8-9

. . . . . 8-10

. . . . . 8-11

Contents-8

1

Getting Started

This chapter provides information to help get you started so that your HP 70902A IF section

is serviced prop erly.

This chapter answers the questions \What is servicing?" and \When is servicing needed?". It

then describes the procedures used to return your HP 70902A IF section to Hewlett-Packard

for servicing if you choose not to p erform the servicing yourself.

Getting Started 1-1

What is servicing?

Servicing includes:

adjusting

troubleshooting

repairing

testing

All areas of servicing are explained in this service guide. This service guide is used to:

describe all adjustment procedures

illustrate module-level blo ck diagrams and interconnect diagrams

illustrate the pro cedures for removal and replacement of ma jor assemblies

explain module verication testing

In this service guide, when we refer to testing, we are referring to module verication tests.

Module verication tests should not be confused with verication of operation tests or

performance tests.

Module

Verication Tests

Module verication tests are used, during service, to test modules so

that when assembled into a system, the system meets the system's

specications.

Verication of

Operation Tests

Verication of op eration tests are used to v

instrument and to verify that the instrument meets approximately 80% of

its measurement related sp ecications.

For information related to verication of operation tests, refer to the

HP 70000 Modular Spectrum Analyzer Instal lation and Verication

Performance Tests

Manual

Performance tests are used to verify the proper operation of a complete

.

modular measurement system (MMS) to full system sp ecications.

For information related to performance tests, refer to the documen

for the HP 11990A p erformance test software.

When is servicing needed?

Servicing is needed:

if error messages are displayed on your HP 70000 Series display

to perform repairs or adjustments or b oth

to verify the correct operation of your HP 70902A IF section

or, if applicable, when upgrading rmware

erify the proper operation of an

tation

If you determine that your HP 70902A IF section needs servicing, you can p erform the

servicing yourself or, you can return your HP 70902A IF section to a Hewlett-Packard service

center.

1-2 Getting Started

If you want Hewlett-Packard to service your HP 70902A IF section

Before calling Hewlett-Packard or returning your HP 70902A IF section for service, please

read your warranty information. Warranty information is printed at the front of this service

guide.

In any correspondence or telephone conversations, refer to the HP 70902A IF section by

its full mo del number and full serial number. With this information, the Hewlett-Packard

representative can determine whether your unit is still within its warranty period.

Determining your HP 70902A IF section's serial number

When a mo dule is manufactured by Hewlett-Packard, it is given a unique serial number. This

serial number is attached to a label on the front frame or front panel of the module. A serial

number lab el is in two parts. (Refer to Figure 1-1.) The rst part makes up the serial number

prex and consists of four digits and a letter. The second part makes up the serial number

sux and consists of the last ve digits on the serial number label. The serial number prex is

the same for all identical mo dules; it only changes when a change in the electrical or physical

functionality is made. The serial number sux, however, changes sequentially and is dierent

for each module.

Figure 1-1. Typical Serial Number Label

Getting Started 1-3

Returning your HP 70902A IF section for service

Hewlett-Packard has sales and service oces around the world to provide complete supp ort

for your HP 70902A IF section.To obtain servicing information or to order replacement parts,

contact the nearest Hewlett-Packard sales and service oce listed in Table 1-2.

Use the following pro cedure to return your HP 70902A IF section to Hewlett-Packard for

service:

1. Fill out a service tag (available at the end of this service guide) and attach it to the

instrument. Please b e as specic as possible about the nature of the problem. Send a copy

of any or all of the following information:

any error messages that appeared on the HP 70000 Series display

a completed Performance Test Record

any other specic data on the p erformance of the HP 70902A IF section

Caution

Damage can result if the original packaging materials are not used. Packaging

materials should be anti-static and should cushion the HP 70902A IF section

on all sides.

Never use styrene pellets in any shape as packaging materials. They do not

adequately cushion the instrument or prevent it from moving in the shipping

container. Styrene pellets can also cause equipment damage by generating

static electricityor by lodging in fan motors.

2. Place the HP 70902A IF section in its original pac

kaging materials (see Table 1-1 ).

If the original packaging materials are not available, you can contact a Hewlett-Packard

sales and service oce to obtain information on pac

kaging materials or you may use an

alternative packing material referred to as \bubble-pack". One of the companies that

makes bubble-pack is Sealed Air Corporation of Commerce, California, 90001.

3. Surround the HP 70902A IF section with at least 3 to 4 inc

hes of its original packing

material or bubble-pack to prevent the HP 70902A IF section from moving in its shipping

container.

4. Place the HP 70902A IF section, after wrapping it with packing material, in its original

shipping container or a strong shipping container that is made of double-walled corrugated

cardboard with 159 kg (350 lb) bursting strength.

The shipping container must be both large enough and strong enough to accommodate an

HP 70902A IF section and allow at least 3 to 4 inches on all sides for packing material.

5. Seal the shipping container securely with strong nylon adhesive tape.

6. Mark the shipping container \FRAGILE, HANDLE WITH CARE" to help ensure careful

handling.

7. Retain copies of all shipping pap ers.

1-4 Getting Started

Table 1-1. Packaging and Contents

Item Description HP Part Number Qty

1 Carton-outer 9211-5118 1

2 Carton-inner 9211-5119 1

3 Carton-sliders 5180-2369 2

4 Foam inserts 4208-0493 2

5 Foam pads 5180-2370 2

Getting Started 1-5

Table 1-2. Hewlett-Packard Sales and Service Offices

US FIELD OPERATIONS EUROPEAN OPERATIONS INTERCON OPERATIONS

HEADQUARTERS HEADQUARTERS HEADQUARTERS

Hewlett-Packard Company Hewlett-Packard S.A. Hewlett-Packard Company

19320 Pruneridge Avenue 150, Route du Nant-d'Avril 3495 Deer Creek Rd.

Cupertino, CA 95014, USA 1217 Meyrin 2/Geneva Palo Alto, California 94304-1316

[phone] Switzerland [phone]

(41 22) 780.8111

California Australia

Hewlett-Packard Co.

France

Hewlett-Packard Australia Ltd.

1421 South Manhattan Ave. Hewlett-Packard France 31-41 Joseph Street

Fullerton, CA 92631 1Avenue Du Canada Blackburn, Victoria 3130

[phone] Zone D'Activite De Courtabo euf (61 3) 895-2895

F-91947 Les Ulis Cedex

Hewlett-Packard Co. France

Canada

301 E. Evelyn (33 1) 69 82 60 60 Hewlett-Packard (Canada) Ltd.

Mountain View, CA 94041 17500 South Service Road

[phone]

Germany

Trans-Canada Highway

Hewlett-Packard GmbH Kirkland, Quebec H9J 2X8

Colorado

Berner Strasse 117 Canada

Hewlett-Packard Co. 6000 Frankfurt 56 [phone]

24 Inverness Place, East West Germany

Englewood, CO 80112 (49 69) 500006-0

[phone]

Georgia

Great Britain

Hewlett-Packard Ltd. 1-27-15 Yabe, Sagamihara

Japan

Yokogawa-Hewlett-Packard Ltd.

Hewlett-Packard Co. Eskdale Road, Winnersh Triangle Kanagawa 229, Japan

2000 South Park Place Wokingham, Berkshire RG11 5DZ (81 427) 59-1311

Atlanta, GA 30339 England

[phone] (44 734) 696622

China

Illinois

China Hewlett-Packard, Co.

Hewlett-Packard Co. 38 Bei San Huan X1 Road

5201 Tollview Drive Shuang YuShu

Rolling Meadows, IL 60008 Hai Dian District

[phone] Beijing, China

(86 1) 256-6888

New Jersey

Hewlett-Packard Co.

Singapore

120 W. Century Road Hewlett-Packard Singapore

Paramus, NJ 07653 Pte. Ltd.

[phone] 1150 Depot Road

Singapore 0410

Texas

(65) 273 7388

Hewlett-Packard Co.

930 E. Campb ell Rd.

Taiwan

Richardson, TX 75081 Hewlett-Packard Taiwan

[phone] 8th Floor, H-P Building

337 Fu Hsing North Road

Taip ei, Taiwan

(886 2) 712-0404

1-6 Getting Started

2

Recommended Test Equipment

This chapter contains a list of recommended test equipment, a listing of a general service

kit for HP 70000 mo dular measurement system modules, and information on electrostatic

discharge (ESD).

The following tables list the recommended models of equipment that may be used. If a piece

of equipment has any critical sp ecications, they are dened under the list of recommended

models for that equipment. The following tables also list any sp ecialized test equipment

needed during the tests and adjustments; for more information, refer to Chapter 4 and

Chapter 5.

Table 2-1. Recommended Test Equipment

Equipment Recommended Model Verif.

HP 70000 system comp onents:

Display HP 70205A graphics display

or HP 70206A system graphics display

or HP 70004A color display

Mainframe HP 70001A mainframe, mo died

Local oscillator source HP 70900A local oscillator source

or HP 70900B lo cal oscillator source

IF section HP 70903A IF section

RF section HP 70904A RF section

or HP 70905A RF section

or HP 70906A RF section

or HP 70908A RF section

or HP 70909A RF section

or HP 70910A RF section

Adj.

Test

Proc.

p

p

p

1

p p

p p

p p

p

p

p

p

p

p

p

Specialized test equipment:

21.4 MHz Notch Filter HP 70902A Option K01 IF section

1

Mainframe must be modied. Refer to \Service Kit".

2

Refer to Chapter 4 for more details on building this specialized test equipment.

Recommended Test Equipment 2-1

2

p

Table 2-1. Recommended Test Equipment (2 of 4)

Equipment Recommended Model Verif.

Attenuator/Switch driver HP 11713A attenuator/switch driver

Controller HP 9000 Series 200/300 controller

2

Series 200 and 300

Frequency counter HP 5316B universal counter

Critical Specications:

Frequency range: 3 to 25 MHz

Resolution: 1 Hz

This equipmentmust have

adjustable gate time to 2 seconds.

Interface card HP 98624A HP-IB interface

Level generator HP 3335A synthesizer/level generator

Critical Specications:

Frequency:

Range: 3 to 25 MHz

Resolution: 0.001 Hz

Amplitude:

Range: +10 to086 dBm

Resolution: 0.01 dB

Accuracy:60.09 dB

Spurious:<0

75 dBc

Adj.

Test

Proc.

1

p p

p p

p p

p p

Network analyzer HP 8757C scalar network analyzer

or HP 8757A scalar network analyzer

or HP 8756A scalar network analyzer

1

For use with a programmable step attenuator. It must be HP-IB programmable and compatible with the step

attenuator.

2

See also Interface card.

2-2 Recommended Test Equipment

p

p

p

Table 2-1. Recommended Test Equipment (3 of 4)

Equipment Recommended Model Verif.

Power meter HP 8902A measuring receiver

Critical Specications:

Range: +10 to020 dBm

Accuracy:60.02 dB

6

0.02 dB/range change

Power sensor HP 11722A sensor mo dule

Critical Specications:

Range: +10 to020 dBm

Accuracy: +2% to04%

Input SWR:<1.15

Precision DVM HP 3456A digital multimeter

Receiver HP 8902A measuring receiver

RF source HP 8340A synthesized sweeper

or HP 8340B synthesized sweeper

or HP 83640A synthesized sweeper

Critical Specications:

Frequency: 21.4 MHz65 MHz

Amplitude: +10 to021 dBm

Adj.

Test

Proc.

p p

p p

p p

p p

1

1

1

p

p

p

RF amplier HP 8447A RF amplier

Critical Specications:

Gain: 2061dB

Noise Figure:<8dB

1

This equipment must work with an HP 8757C scalar network analyzer.

p

Recommended Test Equipment 2-3

Table 2-1. Recommended Test Equipment (4 of 4)

Equipment Recommended Model Verif.

Spectrum analyzer HP 71200A mo dular spectrum analyzer

or HP 8566B spectrum analyzer

(upgraded with rmware

version 16.7.85 or later)

Critical Specications:

Frequency:

Range: 100 Hz to 25 MHz

Resolution: 1 Hz

Amplitude:

Range: 0 to025 dBm

Resolution: 0.01 dB

Log Fidelity:0.1 dB

Synthesized source HP 8662A synthesized signal generator

or HP 8663A synthesized signal generator

Critical Specications:

Frequency:

Range: 18.3 to 25 MHz

Resolution: 1 Hz

Amplitude:

+10 to020 dBm

Resolution: 0.1 dB

Spurious:<0

75 dBc

Test

p

p

p p

p p

Adj.

Proc.

2-4 Recommended Test Equipment

Table 2-2. Recommended Test Accessories

Accessories Recommended Model Verif.

Adjustmenttool HP 8710-1781 alignmen t tool

HP 8710-1010 alignmen t tool

Detector HP 11664A detector

HP 11664E detector

Critical Specications:

Frequency: 21.4 MHz65 MHz

AC detection mo de must work with

an HP 8757C scalar network analyzer

Directional bridge HP 8721A directional bridge

Critical Specications:

Nominal imp edance: 50

Frequency range: 21.462 MHz

Directivity:>40 dB

Transmission/coupling loss: 6 dB

Feedthrough terminator HP 10100C 50 BNC feedthrough

Critical Specications:

Nominal imp edance: 50

(nominal)

Test

p

Adj.

Proc.

p

p

p

p

p

Power splitter HP 11667A p ower splitter

or HP 11667B p ower splitter

Critical Specications:

Nominal imp edance: 50

Tracking:0.15 dB

Probe (resistive divider) HP 10020A resistive divider probe kit

Critical Specications:

1:1 Division Ratio

p p

p p

p

Recommended Test Equipment 2-5

Table 2-2. Recommended Test Accessories (2 of 3)

Accessories Recommended Model Verif.

RF mixer HP 10514A double-balanced and harmonic

mixer

HP 10534A double-balanced and harmonic

mixer

Critical Specications:

Frequency: 21.4 MHz65 MHz

Step attenuator

Terminator HP 1250-0676 precision 50 SMB(f )

1

HP 8496G Option 001 coaxial step attenuator

Critical Specications:

Frequency: 21.4 MHz

Range: 0 to 110 dB in 10 dB steps

Nominal imp edance: 50

termination

Critical Specications:

Frequency: 21.4 MHz

VSWR:<1.05

Test

p p

p p

Adj.

Proc.

p

p

1

A programmable attenuator is recommended.

2-6 Recommended Test Equipment

Table 2-3. Recommended Test Accessories (3 of 3)

Cables and Adapters | Recommended Mo del Verif.

Cables

HP 85680-60093 123 cm (48.4 in) 50 BNC(m) to SMB(f )

HP 10503A 122 cm (48 in) 50 coax BNC(m) to BNC(m)

HP 8120-5016 160 mm (6.3 in) SMB(f ) to SMB(f )

Adapters

HP 1250-1745 50 APC-3.5(f) to N(f )

HP 1251-2277 50 BNC(f) to dual banana plug

HP 1250-1474 precision 50 N(f ) to BNC(f )

HP 1250-1477 precision 50 N(f ) to BNC(m)

HP 1250-1476 precision 50 N(m) to BNC(f )

HP 1250-1473 precision 50 N(m) to BNC(m)

HP 1250-1236 50 SMB(f) to BNC(f )

HP 1250-0672 50 SMB(f) to SMB(f )

HP 1250-0896 50 SMB(m) to BNC(m)

HP 1250-1237 50 SMB(m) to BNC(f )

HP 1250-0674 50 SMB(m) to SMA(f )

HP 1250-0669 50 SMB(m) to SMB(m)

HP 1250-0671 50 SMB(m) to N(m)

HP 1250-1391 50 SMB tee(f ) (m) (m)

Test

p p

p p

p p

p p

p p

p p

p p

p p

p

p p

p

p

p

p

p

p p

p p

Adj.

Proc.

Recommended Test Equipment 2-7

Service Kit

The HP 71000 system service kit is the general service kit for HP 70000 mo dular measurement

system (MMS) mo dules. This kit includes servicing to ols required to repair all MMS modules,

and a mo dication procedure for the HP 70001A mainframe. The mo dication allows access

to MMS mo dules during bench testing and repair.

Table 2-4.

Contents of the HP 71000 system service kit (HP part number 71000-60002)

Quantity Recommended Model

10 HP 2110-0695 1.5A, 125V fuse

10 HP 2110-0700 1.0A, 250V fuse

10 HP 2110-0701 1.6A, 250V fuse

10 HP 2110-0703 6.3A, 250V fuse

10 HP 2110-0710 2.0A, 250V fuse

1 HP 5002-0685 cable puller

1 HP 5021-6773 cable puller

1 HP 5021-7445 pin straightener

7 HP 5061-9021 309 mm (12.2 in) SMB(f ) to SMB(f ) cable

3 HP 85680-60093 123 cm (48.4 in) 50 BNC(m) to SMB(f ) cable

1 HP 70001-00038 modied mainframe cover, right

1 HP 70001-00039 modied mainframe cover, left

1 HP 70001-60013 extender module

1 HP 71000-90015 installation note

2 feet HP 8160-0035 RFI RND STR.0940

10 feet HP 8160-0484 RFI RND BEC.125D

2 feet HP 8160-0495 2.54 x 1.57mm chromeric gasket

1 HP 8710-1651 short 8 mm hex-ball driver

1

1 HP 8710-1728 bandpass lter tuning tool

1 HP 9211-0065 20.5L x 6.5W container

2 HP 9222-0316 bag BR 6.0 x 20.0D

1 HP 9222-0320 bag BR 10.0 x 20.0D

7 HP 9222-1364 bag shield zip 6 x 8

6 HP 9222-1417 bag shield zip 4 x 4

2 HP 9222-1675 bag shield zip AY12

1

An HP 8710-1307 long 8 mm hex-ball driver is also available separately.

2-8 Recommended Test Equipment

21.4 MHz Notch-Filter Documentation

The 21.4 MHz notch lter (HP 70902A Option K01 IF section) can be ordered from

Hewlett-Packard. If you would prefer to build a lter, the following information includes a

schematic diagram, a list of required parts for building the lter, and a gure showing the

typical lter stopband for testing the lter.

Figure 2-1. 21.4 MHz Notch Filter, Schematic Diagram

Table 2-5. 21.4 MHz Notch Filter, Required Parts

Reference

Designation

C1 0160-4800 6 2 Capacitor-Fixed 120 pF 100 V CER

C2 0160-4800 6 Capacitor-Fixed 120 pF 100 V CER

C3 0160-4801 7 1 Capacitor-Fixed 100 pF 100 V CER

J1 1250-0045 5 1 Connector-RF BNC Male

J2 1250-0212 8 1 Connector-RF BNC Female

L1 9100-3548 0 2 Inductor-Fixed 0.47H65%

L2 9100-3548 0 Inductor-Fixed 0.47H65%

L3 9140-0395 3 1 Inductor-Fixed 0.56H65%

HP Part

Number

7100-1040 1 1 Can-Rectangular 1.1823.1

7100-1048 9 1 Cover-Rectangular 1.1223.1

2190-0016 3 4 Washer-Lock 0.377ID

2950-0001 8 2 Nut-Hex 3/8-32

CD Qty Description

Recommended Test Equipment 2-9

Figure 2-2. Typical Filter Stopband

2-10 Recommended Test Equipment

Electrostatic Discharge Information

Electrostatic discharge (ESD) can damage or destroy electronic comp onents. Therefore,

all work performed on assemblies consisting of electronic components should be done at a

static-safe workstation.

Figure 2-3 shows an example of a static-safe workstation. Twotypes of ESD protection are

shown: a) conductive table mat and wrist strap combination, and b) conductive o or mat

and heel strap combination. The twotypes must be used together to ensure adequate ESD

protection. Refer to Table 2-6 for a list of static-safe accessories and their part numbers.

Figure 2-3. Static-Safe Workstation

Recommended Test Equipment 2-11

Reducing ESD Damage

Below are suggestions that may help reduce the amount of ESD damage that occurs during

servicing.

PC Board Assemblies and Electronic Components

Handle these items at a static-safe workstation.

Store or transp ort these items in static-shielding containers.

Caution

PC board assembly edge-connector contacts may be cleaned b

solution of 80% electronics-grade isopropyl alcohol and 20% deionized water. This procedure

should be performed at a static-safe w

Test Equipment

Before connecting any coaxial cable to an instrument connector for the rst time eachday,

momentarily short the center and outer conductors of the cable together.

Personnel should be grounded with a resistor-isolated wrist strap before touc

pin of any connector and before removing any assembly from the instrument.

Be sure that all instruments are properly earth-grounded to prevent buildup of static

charge.

Do not use erasers to clean the edge-connector contacts. Erasers generate

static electricity and degrade the electrical quality of the contacts by

removing the thin gold plating. Do not use paper of any kind to clean the

edge-connector contacts. Paper or lint particles left on the contact surface can

cause intermittent electrical connections. Do not touch the edge-connector

contacts or trace surfaces with bare hands. Always handle b oard assemblies by

the edges.

y using a lint-free cloth with a

orkstation.

hing the center

2-12 Recommended Test Equipment

Static-Safe Accessories

Accessory Description HP part number

Table 2-6. Static-Safe Accessories

Static-control mat and ground

Set includes: 9300-0797

wire

3M static-control mat, 0.6 m21.2 m

(2 ft24 ft)

ground wire, 4.6 m (15 ft)

(The wrist strap and wrist-strap cord are

not

included. They must be ordered

separately.)

Wrist-strap cord 1.5 m (5 ft) 9300-0980

Wrist strap Black, stainless steel with four adjustable

9300-1383

links and 7-mm p ost-type connector (The

wrist-strap cord is not included.)

ESD heel strap Reusable 6 to 12 months 9300-1169

Hard-surface static-control mat* Large, black, 1.2 m21.5 m (4 ft25 ft)

Small, black, 0.9 m21.2 m (3 ft24 ft)

Soft-surface static-control mat* Brown, 1.2 m22.4 m (4 ft28 ft)

92175A

92175C

92175B

Tabletop static-control mat* 58 cm276 cm (23 in230 in) 92175T

Antistatic carpet* Small, 1.2 m21.8 m (4 ft26 ft)

natural color 92176A

russet color 92176C

Large, 1.2 m22.4 m (4 ft28 ft)

natural color 92176B

russet color 92176D

* These accessories can be ordered either through a Hewlett-Packard Sales Oce or through

HP DIRECT Phone Order Service. In the USA, the HP DIRECT phone number is

[phone]. Contact your nearest Hewlett-Packard Sales Oce for more information

about HP DIRECT availability in other countries.

Recommended Test Equipment 2-13

3

Module Verification Software

Module Verication Software is the program designed to automate the mo dule's verication

tests and adjustment pro cedures. Included in this chapter is a step-by-step pro cedure to load

the software and get the verication tests or adjustment pro cedures underway.For more

detailed information, refer to the sections regarding individual menus. Listed below are the

ma jor divisions of this chapter.

General Information

Computer Compatibility

Typographic Conventions

Conguring the Hardware

Installing Verication Software

Module Verication Software Overview

Menus

Error and Status Messages

General Information

This documentation supports module verication software Revision B.03.00 or greater.

Use this software with slave modules that have an HP 70900A/B lo cal oscillator source

as a master. A softkey-driven menu and user-interface screens control the software. The

disks included with this mo dule provide programs that test whether the module meets its

characteristics for system operation.

The

HP 70000 Modular Spectrum Analyzer Instal lation and Verication Manual

contains

conguration information for predened mo dels of HP 70000 Series modular sp ectrum

analyzer systems. The software automatically reads your system conguration data from the

Hewlett-Packard Modular System Interface Bus (HP-MSIB) to determine which system or

modules you are using.

Refer to Chapter 4 and Chapter 5 for individual test setups and test descriptions. Chapter 2

contains a list of recommended test equipment.

Module Verification Software 3-1

Computer Compatibility

Module Verication Software is written in HP 9000 Series 200/300 controller BASIC 4.0 and

can run on the follo wing HP 9000 Series 200/300 controller. Minimum RAM requirementis

2.5 megabytes.

When using an HP 9000 Series 200/300 controller, a medium-resolution monitor and either

an HP 98203C, HP 46020A, or an HP 46021A keyboard is required. Due to the various

keyboards supported, some minor text dierences appear in the menus and softkeys displayed

on-screen. (Refer to \Typographic Conventions").

Computer Language Compatibility

The software program runs on HP BASIC 4.0, or later, with the BIN les in RAM that are

listed below:

CLOCK HPIB

CS80 (optional|supports newer IO

Winchester disk drives) KBD

DISC (optional|supports microoppies MAT

and older Winchester disk drives) MS

ERR PDEV (optional|provides

GRAPH debugging features for

GRAPHX program development)

In a shared resource management (SRM) environment, the following BIN les are also

required:

DCOMM

SRM

A procedure for loading HP BASIC is provided in \Installing Module Verication Software".

Note

If you have set up some RAM memory for sp ecic usage, be a

ware that

this program uses RAM memory Volume \:MEMORY, 0, 15". Moveany

information stored at this Volume to another lo cation before running Mo dule

Verication Software.

Printer Compatibility

Module Verication Software supports any HP-IB printer; however, many of the printed test

results require a graphics printer. Graphical test results are not output to a non-graphics

printer.

3-2 Module Verification Software

Typographic Conventions

This manual uses the following typographic conventions to representkey labels for both

keyboard keys and softkeys: text shown in the form,

NNNNNNNNNNNNNNNNNNNNNNN

keys; text shown in a shaded area in the form,

the form,

special typeface

represents messages displayed on the CRT, or text that the user

4

KEYBOARD KEYS

SOFTKEY

5

represents keyboard

represents softkeys. Text shown in

enters via the keyboard.

For simplicity in this document, we assume that you are using an HP 9000 Series 200/300

controller keyboard. Refer to the list belowifyour keyboard key lab els do not match the ones

used in text.

Keyboard Key Labels Alternate Key Lab els

4

EXECUTE

4

ENTER

4

RUN

5

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

5

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

5

............................................. press

4

SYSTEM

4

4

5

, then

RETURN

RETURN

NNNNNNNNNNN

RUN

5

5

NNNNNNNNNNNNNNNNNNNNNNNNNN

4

CONTINUE

5

.................................... press

4

SYSTEM

5

, then

CONTINUE

Module Verification Software 3-3

Configuring the Hardware

Procedure

1. Connect the HP 70000 Series mo dular spectrum analyzer system to the computer port

determined by the following criteria:

a. For HP 9000 Series 200/300 controllers with an HP 98624A HP-IB interface, connect

your spectrum analyzer to the port lab eled HP-IB SELECT CODE 8. Check that

the address switch on the HP 98624A HP-IB interface matches the HP-IB controller

device address. If needed, refer to the

Installation Guide, Volume 1.

b. For HP 9000 Series 200/300 controllers without an HP 98624A HP-IB interface, connect

the HP 70000 Series mo dular spectrum analyzer system to the port labeled HP-IB

SELECT CODE 7.

2. Connect the HP-IB cables from the test equipment to the computer's HP-IB SELECT

CODE 7 p ort.

3. Use an HP 10833D BNC 0.5 meter HP-IB cable, or similar cable to connect the external

disk drive's HP-IB to the HP-IB SELECT CODE 7 port.

HP 9000 Series 200/300 controller Peripheral

Note

4. Set the external test equipment and the HP 70000 Mo dular sp ectrum analyzer line

switches to ON. Allow the equipmenttowarm up as sp ecied for the verication tests or

adjustment procedures.

5. Turn the disk drive (if used) and computer ON.

Occasionally disk drives exhibit unpredictable b ehavior when sharing the

HP-IB with instruments. If you nd this occurring, assign the disk driv

separate HP-IB select code port.

etoa

3-4 Module Verification Software

Installing Module Verification Software

Use the following steps to get the mo dule verication software loaded and running. Later

sections of this chapter contain more specic program-operation information.

Two assumptions are made with the module verication software. One is that you are using

standard HP-IB addresses for the active devices of the microwave test station. The second

is that all passive devices for the microwave test station are available. If either of these

assumptions is inaccurate, you are prompted for data during program execution.

Software Version

View the version number of the software program after loading the rst program disk. Lo ok in

the right-hand side of the initial display. Specic numbers vary, but the version number lo oks

like this:

Rev. B.01.00

Locate the program part number printed on the disk labels.

Procedure

1. Load BASIC 4.0 or later, with the appropriate binaries, in

to an HP 9000 Series 200/300

controller. If necessary, refer to an HP BASIC reference manual.

Caution

Make backup copies of all write-protected disks. If the program data on an

individual disk should become altered, it cannot be ordered separately

. The

entire set of disks must be ordered to replace any one.

2. Assign the MSI (mass storage is) to the driv

eyou will use as the default drive. As an

example, assigning the MSI to a disk drive lo oks like this:

MSI ":,700,0"

3. Insert Executive Disc into the assigned default drive. Type the following command line:

LOAD "MOD_VERF",1

4. Press

5. If you are using your module's software for the rst time, a message appears stating that

4

EXECUTE

5

. The software version number app ears in the screen that is next displayed.

mass storage data is needed. Press

NNNNNNNNNNNNNNNNNNNNNNN

PROCEED

and follow the on-screen prompts to create a

mass storage data le. Once mass storage data is stored, this message will not reappear.

6. Load the Operating Disc as directed. The Operating Disc probably needs to remain in the

drive specied as the MSI default drive. Load the Driver Discs into the drive sp ecied

on-screen.

An error message may be displayed at this point. If the DUT (device under test) does not

match the module listed in the HP-MSIB Address Map, or if the software you are using

belongs to another mo dule of your system, refer to \Error Messages" at the end of this

chapter to determine a course of action.

7.

Load the Driver Disc as directed. Insert the Driver Disc and press

NNNNNNNNNNNNNNNNNNNNNNN

PROCEED

.

8. If you have not entered serial numbers for passive devices that require calibration data for

test purposes, on-screen prompts request the data no

w. Enter the data via the Calibration

Module Verification Software 3-5

Data screen. Press

CREATE

to access this screen. For a detailed explanation on entering

calibration data, refer to \Edit Calibration Data" in this chapter. Enter the serial number

for each device sp ecied, or bypass the device to continue if it is not used now. After

entering and storing data for passive devices, this prompt screen will not reappear.

NNNNNNNNNNNNNNNNNNNN

Note

In the future, you can access calibration data stored on Operating Discs,

rather than enter the data for passive devices of a given serial number each

time you begin testing. The program displays any additional passive devices

requiring serial numbers and calibration data. Serial numbers are only

required for passive devices that need their calibration data stored on the

Operating Disc. You are prompted to enter serial numbers for these devices

only.

9. You may perform any of the items listed below after satisfying the above conditions:

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Select

FINAL TEST

to perform procedures for which the required test equipmentis

present, automatically.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Press

equipment menu

and return to the Equipmen

t Menu. From here you can modify

the status of the equipment in the menu (make it unavailable, readdress it, change the

private bus, etc.). Refer to \Equipment Menu" under \Menu" in this chapter.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Press

test menu

to choose between verication tests or adjustment pro cedures. If

you have already entered either the verication test or adjustment menus, the screen

allowing you to choose one or the other does not reapp ear. T

selection screen, select

NNNNNNNNNNNNNNNNNNNNNNN

press

RESTART

.Beaware that pressing

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

main menu

from the Test Menu softkeys. In the Main Menu,

NNNNNNNNNNNNNNNNNNNNNNN

RESTART

purges status information for any

o retrieve the Test or Adjust

tests you have already run. You determine individual tests or individual adjustments to

perform via the menuyou select.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Press

MAIN MENU

to customize your test pro cess via any other menu.

3-6 Module Verification Software

Module Verification Software Overview

Testing Multiple Modules

Verication Software tests only one mo dule at a time. If you have more than one module to

test in your system, test them separately.Ifyou have tested a module and wantto change the

module b eing tested without turning o the controller, follow the steps b elow.

1.

Get to the Main Menu, then press

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

equipment menu

.

2. In the Equipment Menu edit screen, move the item indicator to the Device Model number

column next to the Mo dule Under Test.

NNNNNNNNNNNNNNNNNNNN

3. Press

4.

5.

Press

SELECT

NNNNNNNNNNNNNN

DONE

, modify the model number, and press

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

, then

main menu

.

4

ENTER

5

.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

From the Main Menu, press

under test is

appears, press either

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CHANGE DUT

to gain access to the Equipment Menu or HP-MSIB Address Menu. From the

NNNNNNNNNNNNNNNNNNNN

RELOAD

test menu

;

but the software supports the module

.If

ERROR MESSAGE: Selected instrument

and follow the on-screen prompts to load test softw

Equipment Menu, you can select the module under test's model n

are, or

umber and mo dify it to

the module number of the software now loaded. From the HP-MSIB Address Menu, select

the module to test that matches the software you already have loaded. Otherwise, press

NNNNNNNNNNNNNNNNN

ABORT

.

Error Messages or Warnings Defined

There are three kinds of error messages or w

One appears briey at the b ottom of the CR

arnings generated by the program.

T display. The program then go es

automatically to a menu that asks you for corrections or modications.

Another type of error message b egins with

ERROR MESSAGE

and provides special softkeys.

These errors are user-correctable and anticipated by the program. There is usually a

Possible Fix

The nal type begins with

message displayed to help you clear the problem.

ERROR

and provides no sp ecial softkeys. The message informs you

of an unanticipated error. There is no suggested x displayed. If you cannot recover from

one of these errors, please contact your Hewlett-Packard Sales and Service Oce.

Final Tests Defined

Tests dened as Final Tests are a subset of all available verication tests for a given

module. Completing these tests veries a module's electrical p erformance. Once a module

has passed the nal tests, install it into any mainframe and expect performance within its

specied characteristics. Perform tests classied as Additional Tests after troubleshooting

or adjustments to b e sure of the proper operation of sp ecic assemblies. The

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

FINAL TEST

softkey has no dened purpose while p erforming adjustments.

Module Verification Software 3-7

Single Tests Defined

You may select individual tests with this program. Refer to \Test Menu" under \Menus"

in this chapter for a description of selecting individual tests. As explained in \Final Tests,"

specic assembly performance is checked by running assembly-asso ciated p erformance tests.

Refer to Chapter 6, \Troubleshooting," for a cross-reference of tests to p erform versus

assembly adjusted, repaired, or changed.

Printing Test Results

The program shows whether each pro cedure passed or failed. You may congure the computer

operations to format and print test results via the Parameter Menu. If an HP-IB printer is on

the bus and an address is provided in the Equipment Menu, and you congured the Parameter

Menu to print test results, the program automatically prints the test results. The printout

includes a title and summary page.

The title page lists the following data:

Module software used and the test date

Serial number of the module tested

Firmware version of the mo dule tested

Power line frequency

Test person's identication

Test equipment model numbers and names, addresses, and ID or serial n

umber.

The Summary Page lists total test time b eside the titles of tests p erformed. The Summary

Page also includes test results b eneath one of the follo

Not all Final Tests have been completed

...

wing categories:

etc.

The following Final Tests need to be completed:

The following tests showed insufficient performance:

The following tests met the appropriate requirements:

The following additional tests were not completed:

3-8 Module Verification Software

Menus

Menu Structure

The rst menu presented allows you to go to the Main Menu, to begin Final Tests, or to

return to the Equipment Menu. From the Main Menu, access any of the following menus:

Main Menu

Mass Storage Menu

Parameter Menu

Equipment Menu

Edit Calibration Data

HP-MSIB Address Menu

Test Menu

Except for the Test Menu, these menus are conguration menus through whichyou initialize

the software for program operation. Via these menus, you enter information about disk drives,

environment conditions, test equipment, the mo dule under test, etc. Refer to the information

following the menu name in this c

hapter for details.

In the Test Menu, you select and execute module-related procedures. The T

est Menu provides

some testing options. Refer to \Test Menu" in this chapter for details.

The Mass Storage Menu, the Parameter Menu, and the Equipment Menuhavetwo menu

screens. One is the edit screen, the other is the command screen. (The previously men

tioned

menus use only the command screen.)

In edit screens, you can edit displayed data or input data to the screen.

In command screens, you may perform various menu-specic functions, which include

storing edited data, selecting test mode, accessing the help screen, accessing the Main Men

etc.

Edit and Command Screen Menus

The following softkeys are present for menus that appear in Figure 2-1 through Figure 2-4.

Not all of the menus have edit screens, but all have command screens. When softkey lab els

are written in lowercase letters, a sub-level softkey menu exists for that particular softkey.

Softkey labels written in uppercase letters indicate there no further sub-level softkey menus

exist for that softkey.

Edit Screen Menus

The following softkeys are present for edit menus that appear in Figure 2-1 through Figure

2-4.

NNNNNNNNNNNNNNNNNNNN

SELECT

either one of these keys app ears in the Edit Menu. or

NNNNNNNNNNNNNNNNNNNN

SELECT

activates the column item where the cursor is located,

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SELECT TOGGLE

NNNNNNNNNNNNNN

DONE

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

while

SELECT/TOGGLE

activates predened choices in the menu.

exits the edit screen, then displays the menu's command screen.

u,

Module Verification Software 3-9

Command Screen Menus

The following softkeys are present for the command menus pictured in Figures 2-1 through

2-4. An additional softkey,

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

edit cal data

, appears only in the Equipment Menu Command

screen. Refer to \Equipment Menu Command Screen" for information about this softkey.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

main menu

returns you to the Main Menu. Refer to \Main Menu" for

details.

NNNNNNNNNNNNNN

EDIT

appears if there is an edit screen in the menuyou are working

in. Pressing this key returns you to the menu's edit screen.

NNNNNNNNNNNNNNNNN

STORE

appears if you have data that needs to b e stored on the

OPERATING VOLUME. The HP-IB Address Menudoes

not require this softkey, therefore it do es not appear in that

command menu.

NNNNNNNNNNNNNNNNNNNN

CREATE

appears if you tried to store data without an existing le

available.

NNNNNNNNNNNNNNNNNNNN

CREATE

activates the store function and creates a

le on the OPERATING VOLUME.

NNNNNNNNNNNNNNNNNNNN

REPEAT

appears if the correct Operating Disc con

taining calibration

data is not in the disk drive. This key allows you to insert the

Operating Disc into the disk drive and try again.

NNNNNNNNNNNNNNNNN

ABORT

displays the Main Menu screen. The

for some special task screens, but not in the Main Men

Pressing

NNNNNNNNNNNNNNNNN

ABORT

a time or two returns you to the Main Menu

screen. From the Main Menu, you may press

to BASIC command. If you happen to press

NNNNNNNNNNNNNNNNN

ABORT

softkey is available

u screen.

NNNNNNNNNNNNNN

quit

NNNNNNNNNNNNNNNNN

ABORT

to return

before the

Main Menu is displayed at all, you are prompted to press the

4

5

NNNNNNNNNNNNNN

HELP

key. Press

RUN

pressed

a performance test, the Test Menu appears and oers the

NNNNNNNNNNNNNNNNN

ABORT

NNNNNNNNNNNNNN

selections

accesses menu and softkey descriptions. Listed b elow are

4

RUN

.Ifyou press

quit

or

5

to return to where you were when you

NNNNNNNNNNNNNNNNN

ABORT

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

or

ABORT TEST

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

main menu

.

during

softkey selections and functions available via this softkey.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

NEXT PAGE

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PREVIOUS PAGE

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PRINT HELP

NNNNNNNNNNNNNN

DONE

takes you to the top of the next available menu page.

returns you to the top of the preceding menu page.

generates a printout of help-screen information.

returns you to the command or edit screen of the menuyou

were previously in.

NNNNNNNNNNNNNN

quit

NNNNNNNNNNN

YES

displays the quit screen. This softkey is available only from

menu command screens. After you press

if you really want to return to BASIC command. The following

two softkey selections are available via the

stops the program, retains any data les you stored before

pressing

Operating Disc has not been remo

NNNNNNNNNNNNNN

quit

, and returns you to BASIC command. (If the

ved, you can press

NNNNNNNNNNNNNN

quit

,you are asked

NNNNNNNNNNNNNN

quit

softkey.

4

RUN

5

3-10 Module Verification Software

to restart the program and return to the Main Menu. The

program retains all previously entered and stored data.)

NNNNNNNN

NO

displays the edit screen of the previous menu, or the command

screen if there is no edit screen.

Cursor Keys and Menu Selections

When a cursor is present, use either the cursor arrow-keys or the RPG (rotary pulse

generator) knob to position the cursor at the column item you wish to edit.

Note

In most cases, there are more selections available than are displayed

on-screen. Be sure to move the cursor to the right and down as far as you

can.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

NEXT PAGE

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

and

PREVIOUS PAGE

keys are provided to speed your vertical

searches.

Main Menu

From the Main Menu screen you can access all other menus. There is no edit screen for this

menu. Figure 2-1 illustrates the Main Menu softkey organization.

Main Menu Softkeys

Aside from the common softkeys, there are t

One is

NNNNNNNNNNNNNNNNNNNNNNN

RESTART

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

FINAL TESTS

softkey. Press

, which begins the nal test sequence for a mo dule. The second is the

NNNNNNNNNNNNNNNNNNNNNNN

RESTART

to recongure the program and retest a module, or to

test a dierent mo dule. Pressing this key aects the test status column of b oth the T

Menu edit screen and HP-MSIB address screen. The remaining Main Men

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

mass storage

in detail in their sections of this c

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

,

parameter menu

, and

hapter.

If you have stored calibration data on another HP 70000 Soft

wo sp ecial softkeys presented in the Main Menu.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

equipment menu

. Each of these menus is explained

u softkeys include

ware Pro duct Operating Disc,

est

replace your current Operating Disc with that one and access the data. Be sure to return the

Operating Disc belonging with your mo dule under test to the default drive.

Mass Storage Menu

The BASIC op erating system can use a number of mass storage devices. These include

internal disk drives, external disk drives, and SRM systems. You are prompted to assign the

areas where the program stores system and operation data. Y

Labels to an msus (mass storage unit sp ecier). An msus is a string expression that poin

ou do this by assigning Volume

ts

to a mass storage lo cation. A mass storage Volume is comp osed of one or more les. Files

are data items or subprograms. A Volume might consist entirely of les on a oppy disk, or

some number of les on a small p ortion of a hard disk. The Mass Storage Men

u lists Volume

Labels that show the lo cation of certain types of program information. These Volume Lab els

are explained b elow.

DATA is where the test results are temporarily stored.

ERROR LOG is where unanticipated errors are recorded for p ossible future use.

OPERATING is where all the program data is stored.

The program retrieves sp ecic information from the following Volume Labels:

Module Verification Software 3-11

SYSTEM contains the Executive Disc 3 program code. There must b e an msus assigned to

this Volume Label.

OPERATING contains the menu les and calibration data.

DRIVER DISC contains the Driver Disc program code. There must b e an msus assigned to

this Volume Label.

TEST DISC contains the module performance test or adjustment procedures programs.

ADJUST DISC contains the module adjustment tests or any applicable adjustment

procedures.

Volume Labels eachhave a default msus. From the Mass Storage Menu, you can reassign the

current msus or directory path designation to another designation. You cannot edit Volume

Labels, but you may edit their msus designations and directory path data elds.

Mass Storage Menu Edit Screen

The Mass Storage Menu softkeys and their functions are described below.

NNNNNNNNNNNNNNNNNNNN

SELECT

NNNNNNNNNNNNNN

DONE

activates the column item where the cursor is located.

exits the edit screen, then displays the Mass Storage Menu

command screen.

1. Use either the keyboard arrow keys or the RPG knob to lo cate the cursor next to the

column item you wish to edit. (Be sure to check column items to the right- or left-hand

side of the CRT, shown by

Press

NNNNNNNNNNNNNNNNNNNN

SELECT

. Key in the new lo cation (msus or Directory P

2.

more

.)

ath). Press

4

ENTER

5

when data

entry for the selected item is complete.

Note

Leave the Directory Path eld blank unless you are using an SRM system, or

HP BASIC 5.0 (or later version) that uses directory path hierarchy.

NNNNNNNNNNNNNN

3. Repeat steps 1 and 2 until you have nished editing. Press

DONE

to display the Mass

Storage Menu command screen.

The Data Volume is predened to use RAM DISC

:MEMORY,0,0"

. If this RAM disk is

not initialized to at least 1040 records, or contains additional les not required by mo dule

verication, BASIC error 64 may occur. Either reinitialize the RAM disk or use the Mass

Storage Menu edit screen to select another medium.

Mass Storage Menu Command Screen

NNNNNNNNNNNNNNNNN

From the command screen, you can press

Menu data for the rst time causes an error message prompting you to create a le. Do this

simply by pressing

NNNNNNNNNNNNNNNNNNNN

CREATE

.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Next, press

main menu

to return to the Main Menu screen, or Press

STORE

to save the edited data. Saving Mass Storage

NNNNNNNNNNNNNN

EDIT

and return to the

Mass Storage Menu edit screen.

3-12 Module Verification Software

Parameter Menu

You may determine some operating conditions of the software program in the Parameter

Menu. You can select the printer and its output parameters, decide whether you want the

program beep feature on or o, include a message on the test-results output, etc. Use the

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SELECT/TOGGLE

softkey to select the parameter item and enter data, or toggle to a predened

state. The parameter items and their appropriate selections are dened below.

Parameter Menu Edit Screen

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Results sent to: Your choices are Screen or Printer. Press

When

When

Screen

Printer

is displayed, the test results appear on the CRT.

is displayed, test results are displayed on-screen

SELECT/TOGGLE

and printed out.

Output Format:

Your choices are Graph or Table. Press

When

Graph

is displayed, test results are generated in a graph

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SELECT/TOGGLE

.

format if appropriate for the particular test results (a graphics

printer is required if

When

Table

is displayed, the test results are output in a table

Printer

and

Graph

are both selected).

format.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Printer Lines: Lines allo wed are from 50 to 70. Press

anumber from 50 to 70 to set the n

SELECT/TOGGLE

.Enter

umber of lines per printed

page.

.

Line Frequency: Valid frequency selections are 50, 60, and 400 Hz. Press

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SELECT/TOGGLE

until the power line frequency for your system

is displayed. The line frequency value aects some test results.

Beeper to be activated:

Your choices are Yes or No. Press

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SELECT/TOGGLE

. When

is displayed, the warning and time-lapse reminder b eeps are

activated. WhenNois displayed, the program's b eep feature is

disabled.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Verify equipment on HP-IB: Your choices are Yes or No. Press

your choice.

Yes

causes the program to verify the presence

SELECT/TOGGLE

to indicate

of each instrument on HP-IB at the address shown in the

Equipment Menu. SelectNoto bypass this feature.

Test person's ID:

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Press

SELECT/TOGGLE

, then enter your name or ID number to

include it on the output report.

Number lines added: Lets you include a printed message with the test results.

Depending on the program, you can enter up to 30 lines, with

no more than 30 characters p er line. Enter the message you

wish to have printed in this screen by selecting User Line.

User Line: 1. Position the cursor to the left-hand side of a User Line in

the menu. Press

2. The prompt,

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SELECT/TOGGLE

.

Enter additional information

, app ears.

Type in your message (up to 30 characters per line), then

press

4

ENTER

5

.

Yes

Module Verification Software 3-13

3. After you haveentered your message, reposition the cursor

at

Number lines added:

your message o ccupies, then press

Parameter Menu Command Screen

NNNNNNNNNNNNNN

Press

displayed is the command screen. Press

NNNNNNNNNNNNNN

DONE

when you are nished with the Parameter Menu edit screen. The next screen

EDIT

to return to the edit screen, or

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

NNNNNNNNNNNNNNNNN

STORE

main menu

.Enter the number of user lines

4

ENTER

5

.

to saveany edited Parameter Menu data,

to return to the Main Menu screen.

Saving Parameter Menu data for the rst time causes an error message. The message prompts

you to create a le. Do this simply by pressing

NNNNNNNNNNNNNNNNNNNN

CREATE

.

Equipment Menu

The Equipment Menu edit screen displays a list of all the equipment required to test your

DUT completely. Next to each DEVICE TYPE in the equipment list is a column labeled

DEVICE MODEL for the mo del number, ADDRESS for the HP-IB address, SERIAL or ID

NO. (for example, calibration lab number), and PRIVATE BUS for private bus designation (as

for the HP 8756A scalar network analyzer, HP 8757A scalar network analyzer, and HP 8757C

scalar network analyzer, etc.).

Using preferred mo dels of test equipment, describ ed in Chapter 2, assures the most complete

verication and adjustment testing. Refer to the verication tests and adjustment procedures

in this manual for individual test descriptions and test setups.

Equipment Menu Edit Screen

From the Equipment Menu edit screen you can enter data about your test equipment. You

cannot edit the DEVICE TYPE column.

You may use either the cursor arrowkeys or the RPG knob to p osition the cursor at the

column item you wish to edit.

1. Edit a DEVICE MODEL item by locating the cursor b eside the model n

edit. Press

NNNNNNNNNNNNNNNNNNNN

SELECT

,type the mo del number, then press

4

ENTER

5

.

umber you wish to

2. Edit an ADDRESS by lo cating the cursor b eside the address you want to edit. Press

NNNNNNNNNNNNNNNNNNNN

SELECT

, edit the address, then press

If the DEVICE MODEL has no address in the ADDRESS column,

4

ENTER

5

.

Missing ETE

included in the Status column next to the tests that required the device. T

with

Missing ETE

are not performed.

is

ests tagged

Valid active device addresses are restricted to the following ranges:

700 to 730 and 800 to 830 for an HP 70000 Modular spectrum analyzer master module

700 to 730 for any other device typ e

These three-digit HP-IB address include the HP-IB select co de and the actual HP-IB

address. For example, an HP 70000 Modular spectrum analyzer HP-IB select code of

8 and an HP-IB address of 21 yields an address of 821. The addresses of DUTs that

function as slaves should match their master device's address.

3-14 Module Verification Software

Address passive devices (non-programmable devices such as sensors, directional bridges,

and detectors) as either

entering

Available

AvailableorNot Available

.For some of the passive devices,

in the address column requires entering calibration data and a serial

number for the device. The calibration data for a passive device is stored on Op erating

Discs.

Passive devices tagged

Not Available

in the address column cause

Missing ETE

to be

printed next to the test names on the test results that are output for any pro cedure that

required the missing device. Tests tagged with

3.

Edit a SERIAL NUMBER by lo cating the cursor b eside the serial number. Press

enter the new serial number (10 digits or less), then press

that have

Available

displayed in the address column must also have a serial-number entry.

Missing ETE

4

ENTER

are not p erformed.

5

. Some passive devices

NNNNNNNNNNNNNNNNNNNN

SELECT

4. Enter 19 in the PRIVATE BUS column if you are to use a MicrowaveorFull Microwave

source with a network analyzer. Congure these instruments by connecting the source's

HP-IB cable to the network analyzer's SYSTEM INTERFACE connection.

a. Move the cursor through the DEVICE TYPE column until you reach the Full

Microwave or Microwave source, then move horizontally to the PRIVATE BUS column.

b. Enter19and press

selected source when 19 app ears in the PRIV

4

ENTER

5

. The program enters the ADDRESS column data for the

ATE BUS column. Nineteen is the only

allowable address for sources on a private bus. Refer to the network analyzer's manual

for addressing information.

Equipment Menu Command Screen

NNNNNNNNNNNNNN

After you have nished editing the Equipment Menu, press

Menu command screen. Press

Saving Equipment Menu data for the rst time generates an error message prompting y

create a le. Do this simply by pressing

NNNNNNNNNNNNNNNNN

STORE

to save the edited data.

NNNNNNNNNNNNNNNNNNNN

CREATE

.

DONE

to enter the Equipment

ou to

,

This command screen displays the following additional softkeys:

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

edit cal data

displays the Select Passive Device screen. From this screen, move

the cursor to the passive device that needs its calibration data

edited. Press

Calibration Data

NNNNNNNNNNNNNNNNNNNN

SELECT

, then enter the required data. Refer to

for more information.

Edit

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

NO ADDRESS

appears only if the program cannot nd an instrumen

t at a specied

HP-IB address. Tocheck which instruments are not resp onding, follow

the steps below.

1. Access the Equipment Menu edit screen.

2. Scroll the ADDRESS column for ashing addresses, then be sure that the instrument is on.

NNNNNNNNNNNNNNNNNNNN

3.

SELECT

the ashing address and either correct the address or press

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

NO ADDRESS

to delete

the fault-address from the edit menu.

Note

Either exiting the Equipment Menuorentering the Test Menu causes the

program to search the addresses in the Equipment Menu for instruments

assigned to HP-IB, if this feature is selected in the P

arameter Menu.

Module Verification Software 3-15

4. Press

main menu

to return to the Main Menu, or

data for passive devices. Pressing

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

edit cal data

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

edit cal data

to enter calibration

displays the Select Passive Device

screen. Refer to the following section for more information.

Edit Calibration Data

The Select Passive Device screen displays all passive devices needing calibration data entered.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Press

edit cal data

to enter the Select Passive Device screen. The program requires

calibration data for some of the passive devices listed in the Equipment Menu edit screen.

Note

Selecting a passive device needing a serial number generates a prompt

requesting that you enter the number via the Equipment Menu. If you have

formerly entered calibration data for a passive device of a given serial number

and you would rather not reenter the data, replace your current Operating

Disc with one containing data for passive devices from previous testing. Press

NNNNNNNNNNNNNNNNNNNN

REPEAT

to access the calibration data from that disk. If you only need to

enter the passive device's calibration data, press

Calibration Data screen, then b egin at step 4.

NNNNNNNNNNNNNNNNNNNN

1. Locate the cursor beside the device and press

you to delete or edit data related to the passiv

Note

Not all frequencies are listed on the screen at once. Be sure to en

SELECT

e device.

. The next screen displayed allows

calibration data for frequencies listed on the next pages of the displa

2. If you edit the factory default FREQUENCY or CAL F

calibration factors for each frequency edited.

Note

You must enter a frequency and calibration factor for 10 MHz and 300 MHz,

even if the device has no factor listed at 10 MHz or 300 MHz. En

values from the list of valid factors, below. Other frequencies outside the

normal range of the device may also be required. Prior to using your

device, you may need to calibrate it at these frequencies to ensure accurate

measurement results.

NNNNNNNNNNNNNNNNNNNN

CREATE

to enter the Edit

ter

y.

ACTORS values, enter valid

ter the

Passive Device Calibration Factors

Mixers . ....................................................... 16 to 24 dB

Directional Couplers ............................................. 8 to 11 dB

Noise Sources . . . . . . ............................................ 12 to 16 dB

Sensors ..................... 0.3 to 1.6

(stored as a p ercentage by the program)

Edit Calibration Data Edit Screen

NNNNNNNNNNNNNNNNNNNN

1. Move the cursor to a column item and press

calibration factor, then press

4

ENTER

5

. (It is not necessary to enter new frequency values in

SELECT

.Enter the new frequency or

numeric order. The program sorts them before storing them on the Operating Disc.)

3-16 Module Verification Software

2.

To delete an item, move the cursor to the column item. Press

NNNNNNNNNNNNNNNNNNNN

SELECT

, clear the line, then

move to another item. Repeat the above pro cess as needed to edit frequency values or

calibration data for any passive devices.

Edit Calibration Data Command Screen

NNNNNNNNNNNNNN

1. After you haveentered the necessary data, press

DONE

. The Equipment Menu command

screen is displayed.

2.

From the command screen, you can press

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

main menu

when you are ready to continue with

the program.

HP-MSIB Address Menu

The HP-MSIB Address Menu lists the names and HP-MSIB addresses of the modules in

the HP 70000 Series mo dular spectrum analyzer system that you may select to test. The

HP-MSIB address of the master and the system are the same. In other words, the address of

the master mo dule determines the address of the system. For information on conguring the

software to test a specic module, refer to

Equipment Menu

in this chapter.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

There is no edit screen for this menu. The command screen has a

but requires no

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SELECT MODULE

NNNNNNNNNNNNNNNNN

STORE

softkey. Locate the cursor next to the module y

. Be sure the mo dule selected here matc

hes the

SELECT MODULE

ou wish to test. Press

Module Under Test

softkey

listed in

the Equipment Menu.

Test Menu

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Pressing

If

ERROR MESSAGE: The is listed as the DUT in the Equipment Menu, but the

suggests you select either

test menu

is selected in the HP-MSIB Address Menu

from the Main Menu screen accesses the Test or Adjust selection screen.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

MODIFY MODULE

to enter new ROM data or

appears, the possible x information

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CHANGE DUT

to select

the module you wish to test.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

If you press

number to the module you want to test. If you press

MODIFY MODULE

, on-screen commands help you change the model and serial

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

CHANGE DUT

, go either to the Equipment

Menutochange the model number or to the HP-MSIB Address Map to select the module

number you want to test.

To begin the testing process, select

adjustments pro cedures. Press

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

main menu

NNNNNNNNNNNNNN

TEST

to run verication tests or

to return to the Main Menu.

NNNNNNNNNNNNNNNNNNNN

ADJUST

to perform

Module Verification Software 3-17

If you have pressed

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

main menu

NNNNNNNNNNNNNNNNNNNNNNN

,

RESTART

FINAL TEST

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

,

TEST MENU

, and wish to get to the adjustment procedures, press

, then

NNNNNNNNNNNNNNNNNNNN

ADJUST

and want to get to the verication tests, press

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

.Ifyou are in the adjustment pro cedures

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

main menu

NNNNNNNNNNNNNNNNNNNNNNN

,

RESTART

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

,

TEST MENU

, then

NNNNNNNNNNNNNN

TEST

.

Caution

Pressing either

NNNNNNNNNNNNNNNNNNNNNNN

RESTART

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

or

equipment menu

any time after testing begins

purges Test Menu Status column information. Selecting a new module to

test in the HP-MSIB Map Screen Menu also deletes the Status column data.

The assumption is that verication-test status will most likely be modied if

you are moving between modules, ETE mo del numbers, or to the adjustment

procedures.

After selecting

Tests

, the names of the verication tests are displayed. Review the Status

column for tests performed.

Additional test equipment is required to perform tests b eside which

review which additional test equipment is required, locate the cursor beside the test name,

then press

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SINGLE TEST

. The Missing ETE screen displays the missing test equipment for

Missing ETE

is listed. To

that test.

A message stating that calibration data for passive devices is missing may also app ear. If the

correct Operating Disc is in the default driv

to build the data le. After the problem is cleared, the T

e, store the calibration data there. Press

est Menu is displayed.

NNNNNNNNNNNNNNNNNNNN

CREATE

3-18 Module Verification Software

Test Menu Command Screen

The Test Menu only has a command screen. It deviates from the command screen formats

previously described. The following list denes the softkeys available in this menu.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

FINAL TEST

begins the nal test sequence. Final tests are the ones required

to verify module operation. There are additional tests that can

be selected as well. (Review the Test MenuTest Name list for all

available tests.) During the nal test sequence, the keys listed below

are also available.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

END SEQUENCE

interrupts the test sequence at the end of the test in progress.

The Test Menu is displayed with an additional softkey labeled

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

RESUME TESTING

. Press this key to resume the test sequence where

the program left o.

NNNNNNNNNNNNNNNNN

ABORT

ends the testing process and displays the Test Menu. From there you

maychoose some other action.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

RESUME TESTING

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SINGLE TEST

allows you to continue the nal test sequence after you have pressed

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

FINAL TEST

followed by

lets you select an individual test to run. If

the Status column, you can review which test equipment is missing.

Locate the cursor b eside that test name, then press

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

END SEQUENCE

.

Missing ETE

is listed in

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SINGLE TEST

The Missing ETE screen is displayed. If you choose to return to the

Test Equipment Menu via the Test Menu to install the missing test

equipment, you lose the status of any tests that have run. To run a

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

multiple test

single test that has the necessary ETE, locate the cursor b eside the

test name and press

softkey lets you organize a group of tests sequentially. Locate the

cursor beside the test you want to run. Press

rst number of the series to that test. Con

and press

Press

NNNNNNNNNNNNNNNNNNNN

SELECT

NNNNNNNNNNNNNNNNNNNNNNNNNN

END LIST

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

SINGLE TEST

.

NNNNNNNNNNNNNNNNNNNN

SELECT

to assign the

tinue to locate the cursor

until you have organized the tests you want to run.

when you are ready to b egin testing. During testing,

the following softkeys are also available.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

END SEQUENCE

interrupts the test sequence at the end of the test in progress, then

displays the Test Menu.

NNNNNNNNNNNNNNNNN

ABORT

ends the testing process and displays the Test Menu. From there you

maychoose some other action.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

repeat mult.

softkey allo ws you to select a test sequence (you determine the

quantity and order). The tests loop through this sequence until you

decide to stop them. Locate the cursor beside the test you wantto

run, press

NNNNNNNNNNNNNNNNNNNN

SELECT

,move the cursor to the next test, press

NNNNNNNNNNNNNNNNNNNN

SELECT

etc. Continue selecting tests until you are ready to begin testing.

It is acceptable to select the same test for repeated testing. Press

NNNNNNNNNNNNNNNNNNNNNNNNNN

END LIST

to start the test sequence. During testing, the following

softkeys are also available.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

END SEQUENCE

interrupts the test sequence at the end of the test in progress, then

displays the Test Menu.

.

,

Module Verification Software 3-19

NNNNNNNNNNNNNNNNN

ABORT

NNNNNNNNNNNNNNNNNNNNNNNNNNNNN

more keys

NNNNNNNNNNNNNNNNNNNNNNN

SUMMARY

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

select output

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

PURGE CAL DATA

ends the testing process and displays the Test Menu. From there you

maycho ose some other action.

toggles between

NNNNNNNNNNNNNNNNNNNNNNN

SUMMARY

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

,

select output

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

, and

PURGE CAL DATA

and the previously explained Test Menu command screen softkeys.

gives you a printout of the current test(s) run.

chooses an output device. You can print test results by pressing

NNNNNNNNNNNNNNNNNNNNNNN

PRINTER

NNNNNNNNNNNNNNNNNNNN

Press

RETURN

,oryou can print the current displayby pressing

to return to the previous set of softkeys in the Test

NNNNNNNNNNNNNNNNNNNN

SCREEN

.

Menu command screen.

Pressing this softkey deletes stored calibration data for the spectrum

analyzer and any other calibration routines used for testing. Before

module verication tests can b e run again, equipment calibration

routines have to be redone.

3-20 Module Verification Software

Figure 3-1. Main Menu Softkeys

Module Verification Software 3-21

Figure 3-2. Mass Storage Menu and Parameter Menu Softkeys

3-22 Module Verification Software

Figure 3-3. Equipment Menu and HP-MSIB Map Screen Menu Softkeys

Module Verification Software 3-23

Figure 3-4. Test Menu Softkeys

3-24 Module Verification Software

Error and Status Messages

User interface messages used with HP 70000 Series software products are alphabetized in

this section. The messages are designed to provide information about test results, op erator

errors, system conditions, etc. Refer to your

HP BASIC Language Reference

for system error

information.

Aborted

You aborted the test indicated.

EEPROM for is defective.

The EEPROM needs to be replaced.

Failed

The module under test needs adjustment or repair to pass the test number indicated.

CAUTION: Passthru address is incorrect. (See Edit Screen).

The address of the microwave source is not set to 19, or the address specied in the

Equipment Menu do es not match the address of the synthesized source. Return to the

edit screen of the Equipment Menu to modify addresses in either the address column or

the private bus column.

CAUTION: Some Model #'s are not supported. (See Edit Screen).

You have model numbers in the Equipment Menu that are not supported by the software.

Ignore this caution if you are sure program memory contains a driver for these mo dels.

A driver that is required but missing causes the error message

subprogram

to appear on-screen. You are returned to the Test Menu.

Undefined function or

Equipment list is not acceptable.

You attempted to enter the Test Menu, but the program could not locate all the

instruments for whichyou have specied HP-IB addresses. Verify that the indicated

equipment is turned on, then return to the Equipmen

accuracy of addresses that are ashing in either the address column or the priv

t Menu edit screen to verify

ate bus

column.

Equipment list shows no analyzer to test.

The DUT has no assigned HP-IB address. Return to the Equipment Menu and edit the

Address column.

ERROR: Address matches system disc drive

.

You entered an HP-IB address matching that of the computer's external disk drive.

HP-IB proto col allows only one instrument per address.

ERROR: Address not in acceptable range.

You entered an HP-IB address outside the range 700 to 730, inclusive.

ERROR: Duplicate HP-IB address.

You attempted to exit the Equipment Menu after assigning the same HP-IB address to

dierent mo del numbers. HP-IB proto col allows only one instrument p er address. (It is

acceptable to assign the same address to identical mo del numbers.)

Module Verification Software 3-25

ERROR: Non-responding HP-IB address

.

You attempted to exit the Equipment Menu after assigning an HP-IB address to an

instrument not responding on HP-IB.

ERROR: Search for unsuccessful.

The program tried to nd the disk identied but could not. Either assign a driveto

the disk and press

NNNNNNNNNNNNNNNNNNNN

REPEAT

.

NNNNNNNNNNNNNNNNNNNN

REPEAT

or insert the required disk into its appropriate drive. Press

ERROR: Some devices listed as Available require serial numbers.

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

You pressed

View Cal Data

, then selected a device to whichyou have not assigned a

required serial number. Display the Equipment Menu edit screen and assign the serial

number.

ERROR MESSAGE: Address is HP-IB controller address.

You entered an HP-IB address matching the computer's address. HP-IB protocol allows

only one instrument per address.

ERROR MESSAGE: Attempt to close file failed.

There is a problem with the data le on the Op erating Disc. Correct the problem, then

do one of the following:

NNNNNNNNNNNNNNNNNNNN

Press

REPEAT

to try again.

NNNNNNNNNNNNNNNNNNNN

Press

CREATE

to create a new le.

NNNNNNNNNNNNNNNNN

Press

ABORT

to return to the Main Menu.

ERROR MESSAGE: Attempt to create file failed.

There is a problem with the data le on the Op erating Disc. Correct the problem, then

do one of the following:

NNNNNNNNNNNNNNNNNNNN

Press

REPEAT

to try again.

NNNNNNNNNNNNNNNNNNNN

Press

CREATE

to create a new le.

NNNNNNNNNNNNNNNNN

Press

ABORT

to return to the Main Menu.

ERROR MESSAGE: Attempt to Edit Mass Storage failed.

Your edits to the Mass Storage Menuwere not valid. Return to this menu and correct the

errors.

ERROR MESSAGE: Attempt to store Mass Storage failed.

You pressed

NNNNNNNNNNNNNNNNN

Press

ABORT

NNNNNNNNNNNNNNNNN

ABORT

after pressing

to return to the Main Menu.

NNNNNNNNNNNNNNNNN

STORE

mass storage. The Mass Storage Menu failed.

ERROR MESSAGE: Bad instrument address in equipment list. Address matches

controller.

You entered an HP-IB address matching that of the controller. HP-IB protocol allows

only one instrument per address and only one controller per HP-IB system. (The factory

preset controller address is 21.)

3-26 Module Verification Software

ERROR MESSAGE: Calibration data frequency exceed acceptable limits.

Return to the Calibration Data edit screen and correct the data entries that are ashing.

ERROR MESSAGE: Calibration data frequency is less than minimum range of

The frequency entered next to the device in the Cal Data edit screen is out of the device's

operating range. The return to this screen is automatic. Enter valid frequencies for the

values that are ashing.

ERROR MESSAGE: Calibration data frequency is greater than maximum range of

.

The frequency entered next to the device in the Cal Data edit screen is out of the device's

operating range. The return to this screen is automatic. Enter valid frequencies for the

values that are ashing.

ERROR MESSAGE: Calibration data for is blank for some frequencies listed.

Return to the Calibration Data edit screen to enter the calibration data for frequencies

indicated with ashing markers.

ERROR MESSAGE: Calibration data for is less than minimum range of

.

The factor entered next to the device in the Cal Data edit screen is out of the device's

operating range. The return to this screen is automatic. En

ter valid values for the ones

that are ashing.

ERROR MESSAGE: Calibration data for is greater than maximum range of

.

.

The factor entered next to the device in the Cal Data edit screen is out of the device's

operating range. The return to this screen is automatic. En

ter valid values for the ones

that are ashing.

ERROR MESSAGE: Calibration data file not found for with serial number

.

The data le cannot b e found or there is a problem with the data le on the Operating

Disc. Correct the problem, then either press

NNNNNNNNNNNNNNNNNNNN

REPEAT

to try again or press

NNNNNNNNNNNNNNNNNNNNNNNNNN

CONTINUE

.

ERROR MESSAGE: DUT does not have an address.

You attempted to leave the Test Equipment Menu, but the program cannot verify the

DUT at the specied HP-IB address. First c

heck the address. If the address is correct,

cycle the main power of the system under test.

ERROR MESSAGE: DUT was not at address in the equipment list. DUT was expected at

address

The DUT is not at the sp ecied address, or HP-IB is at fault, or main po

DUT. Press

.

NNNNNNNNNNNNNNNNN

ABORT

wer is o on the

, then return to the Equipment Menutoverify the address.

ERROR MESSAGE: DUT was not found at address in equipment list.

NNNNNNNNNNNNNNNNN

The address specied for the DUT is not v

alid. Press

ABORT

, then return to the

Equipment Menutoverify the address.

Module Verification Software 3-27

ERROR MESSAGE: Equipment address matches external disc drive.

You entered an equipment address matching that of the external disk drive. HP-IB

protocol allows only one instrument p er address.

ERROR MESSAGE: Equipment Menu data not found on

.

The program could not nd the Equipment Menu data le on the Operating Disc.

Possible Fix

instructions appear with the on-screen error message. If the data le is

available in a lo cation other than the one currently sp ecied in the Mass Storage Menu,

return to that menu and change the msus and/or the directory path of the Op erating

Disc. It may also be that the Operating Disc accessed by the program is not the one

containing the Equipment Menu le. Insert the correct Op erating Disc, then press

NNNNNNNNNNNNNNNNNNNN

REPEATor4

CONTINUE

5

.

ERROR MESSAGE: Equipment does not have an address.

There is no address assigned to the DUT. Return to the Equipment Menu edit screen and

verify or enter an address in the Address column.

ERROR MESSAGE: ERROR XXX in XXXXX

An unanticipated occurrence in the program caused a program failure. F

.

or clarication,

call your Hewlett-Packard Sales and Service Oce.

ERROR MESSAGE: File not found while assigning I/O path.

NNNNNNNNNNNNNNNNN

You attempted to

on the current Operating Disc.

STORE

a list (equipment, mass storage, or parameter) for the rst time

Possible Fix

instructions appear with the on-screen

error message. Follow the on-screen instructions or return to the Mass Storage Men

change the location of the Operating Disc.

uto

ERROR MESSAGE: Incorrect Volume found. required.

The wrong disk is in the required storage medium. Either correct the fault and press

NNNNNNNNNNNNNNNNNNNN

REPEAT

to retry, or select

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

mass storage

to return to the Mass Storage Menu. From

here you can indicate a dierent mass storage drive.

ERROR MESSAGE: Parameter Menu data not found on

The program could not nd Parameter Menu data le on the Operating Disc.

Fix

instructions appear with the on-screen error message. If the data le is available in

.

Possible

a lo cation other than the one currently sp ecied in the Mass Storage Menu, return to

that menu and change the msus and/or the directory path of the Operating Disc. It

may also be that the Operating Disc accessed b

the Parameter Menu data le. Insert the correct Op erating Disc, then press

4

CONTINUE

5

.

ERROR MESSAGE: Read data from file failed

There is a problem with the data le on the Op erating Disc. Correct the problem, then

either press

NNNNNNNNNNNNNNNNNNNN

REPEAT

to try again or

4

CONTINUE

ERROR MESSAGE: Selected instrument under test is

supports the

.

The module entered in the HP-MSIB map is not curren

y the program is not the one containing

NNNNNNNNNNNNNNNNNNNN

REPEAT

.

5

to use default values.

;

but the software

tly supported by software.

Either load the correct software or select a dierent mo dule in the Equipment Menuor

HP-MSIB Map Menu.

or

3-28 Module Verification Software

ERROR MESSAGE: Sensor model # not supported.

Software does not support the sensor mo del number entered for the Signal Sensor in

the Equipment Menu. Return to the Equipment Menu and select a sensor with a mo del

number that is supp orted. (Refer to Chapter 2 for a list of supported equipment.)

ERROR MESSAGE: Test Parameter data file not found on

The program could not nd parameter-list data le on the Operating Disc.

Fix

instructions app ear with the on-screen error message. If the data le is available in

.

Possible

a lo cation other than the one currently specied in the Mass Storage Menu, return to

that menu and change the msus and/or the directory path of the Operating Disc. It may

also be that the Operating Disc being accessed by the program is not the one containing

the parameter-list data le. Insert the correct Operating Disc, then press

4

CONTINUE

5

.

NNNNNNNNNNNNNNNNNNNN

REPEAT

or

ERROR MESSAGE: The is listed as the DUT in the Equipment Menu, but the

is selected in the HP-MSIB Address Menu.

The DUT and the mo del selected in the HP-MSIB Address Map do not agree. You are

given suggested x instructions either to modify the mo dule or c

hange the DUT.

ERROR MESSAGE: The Operating Disc is write protected.

Makeaworking copy of the Op erating Disc and store the original in a safe place, or

remove the write-protect.

ERROR MESSAGE: Too many Cal Data frequencies were eliminated. There must be at

least two frequencies.

Only one Cal Frequency remains in the Cal Data edit screen. Return to that screen and

enter more frequencies in the Frequency column.

ERROR MESSAGE: Write data to file failed.

There is a problem with the data le on the Operating Disc. Correct the problem, press

NNNNNNNNNNNNNNNNNNNN

REPEAT

, then do one of the following:

NNNNNNNNNNNNNNNNNNNN

Press

REPEAT

to try again.

NNNNNNNNNNNNNNNNNNNN

Press

CREATE

to create a new le.

NNNNNNNNNNNNNNNNN

Press

ABORT

to return to the Main Menu.

ERROR MESSAGE: Wrong device at specified address. DUT was expected at address

.

The address specied for the DUT is actually that of a test instrument.

Fix

instructions app ear with the on-screen error message. If necessary, return to the

Possible

Equipment Menu.

ERROR MESSAGE: Volume was not located

.

NNNNNNNNNNNNNNNNNNNN

The program cannot access the listed Volume. If the Volume is correct, press

to retry. If the Volume is incorrect, press

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

mass storage

to return to the Mass Storage

REPEAT

Menu. From here you can indicate a dierent mass storage medium for the Volume in

question.

Module Verification Software 3-29

FORMAT ERROR: Observe date format and character position.

You entered the date/time in an unacceptable format. Enter date/time in the format

mmm yyyy

and

hh:mm

, then press

4

ENTER

5

.

Hdw Broken

Actual test results far exceed the expected results. This is often an indication of a

hardware failure (hardware broken) or incorrect connections.

Logging errors to ERRORLOG failed. Operating Disc is write protected.

The program tried to store error data onto the Operating Disc and could not because of

the write-protect. Makeaworking copy of the Operating Disc and store the original in a

safe place, or remove the write-protect.

KEYBOARD SYSTEM CRASH WITH KEYBOARD:

.

The software program does not support the currentkeyb oard. Install a keyboard having

one of the part numbers listed at the beginning of this chapter, then restart the program.

Passed

The module meets the tested characteristics.

PAUSED. PRESS CONTINUE.

You pressed

4

PAUSE

5

on the computer keyboard. Press

4

CONTINUE

5

to resume program

execution.

PRGM ERROR

dd

The program detected an error within itself. F

or clarication contact a Hewlett-Packard

Sales and Service Oce.

Reading errors from ERRORLOG failed. Check disc at

The program tried to read error data from the Operating Disc. Chec

.

k that the Operating

Disc is installed in the drive specied in the error message.

Return to Equipment Menu to enter serial number for

.

You must return to the Equipment Menu edit screen and enter a SERIAL or I.D. NO. for

the passive device selected before you can edit the device's calibration data.

Setup Error

The program ab orted the test after attempting to v

erify the test setup. Ensure that all

required ETE is present, has b een turned on, and is prop erly connected.

SORRY, but your SERIAL NUMBER must end in a NUMERIC -- This is

.

Contact your Hewlett-Packard Sales and Service Oce p ersonnel.

Test can not be done.

Required ETE is missing. Return to the Equipment Menu and enter all ETE listed as

required for the current test.

3-30 Module Verification Software

TEST_LIST is not compatible.

A bad test list exists. Contact Hewlett-Packard Santa Rosa Systems Division for

assistance.

The controller does not have sufficient memory.This software cannot load. See

the computer hardware system documentation for information on adding additional

memory.

Either refer to the appropriate manual to extend the memory capabilityofyour system,

or o-load some data to make ro om for the program.

The at address was not found on HP-IB.

When Verify HP-IB is set to ON in the Parameter Menu, this error message displays the

ETE with the address that is either missing or not set to ON.

The HP 436A power meter is in lowest range, waiting 10 seconds.

The currentpower measurement requires the lowest power-meter range. Program

execution will resume in 10 seconds.

The HP 8902A measuring receiver needs repair (Error 6).

There is a problem related to the HP 8902A measuring receiv

er. Correct the fault or

return to the Equipment Menu where you can enter a dierent model number.

The DUT must have an HP-IB address.

You attempted to leave the Equipment Menu, but the program cannot nd the HP 70000

system at the assigned HP-IB address.

THIS COLUMN CAN NOT BE EDITED.

NNNNNNNNNNNNNNNNNNNN

You pressed

SELECT

with the cursor positioned in the rst column of the Mass Storage

edit screen or the Equipment Menu edit screen. This column cannot be edited.

THIS IS AND FOUND DUPLICATE FILES:

.

Contact your HP Sales and Service Oce personnel.

This test can not be selected because of missing ETE.

You were in either Multiple Tests or Repeat Multiple, then tried to select a test that has

missing ETE. This is not allowed. Check the Status column of the Test Menutoverify a

Missing ETE

tag next to the test name you attempted to select.

Timed Out

The program ab orted the test.

WARNING: Duplicate Address

You entered a duplicate HP-IB address to an item in the Equipment Menu. (You may

have to scroll through the menu to nd the duplication.)

WARNING: Duplication may exclude specific tests.

You assigned two generic device functions to one ETE. (For example, the TOI test will

not be run if you assign a single HP 3335A synthesizer/level generator as both the

required level generator and the required general source.)

Module Verification Software 3-31

WARNING: String is too long. It has been truncated.

You entered to o manycharacters in a user's line of the Parameter Menu edit screen.

Select the line and enter 30 or fewer characters.

Write protected.

You attempted to store data on a write-protected disk. After correcting the fault, press

4

CONTINUE

5

.

3-32 Module Verification Software

Module Verification Tests

This chapter lists the module verication tests for the HP 70902A IF section and gives

information for making any sp ecialized test equipment that is required. All of the tests are

automated. Chapter 3 tells what computer equipment is needed and gives instructions for

running the Mo dule Verication Software.

Final Tests

3. 18.4 MHz Oscillator Stability Test

4. DUT Calibration

5. Average Noise Test

6. Corrected SensitivityTest

7. Third-Order Intercept Test

8. Spurious Responses Test

9. Resolution Bandwidths Test

10. Video Bandwidths Test

11. Module Gain Test

12. Calibration Attenuator Test

13. Corrected Mo dule FidelityTest

4

After Repair Tests

The following list of tests are run after repair to v

1. FrontPanel LED Check

2. Diagnostic Detectors Check

14. Crystal Spurs Test

15. Rear-Panel Auxiliary Port Test

16. Front-Panel Auxiliary Port Test

17. Auxiliary Video Test

18. Limited IF Output Check

Caution

Use 5 to 8 inch-pounds of torque when connecting SMA or APC-3.5 cables.

More torque may cause damage to the cables or connectors.

Make sure covers are secure and module is warmed up for at least one hour

prior to running tests.

erify operation of specic functional areas.

Module Verification Tests 4-1

Note

Preferred Frequency-Reference Connections

Figure 4-1 shows the preferred order for connecting equipment when a frequency reference is

required. For tests that require an exact frequency reference, a house standard connected to

an HP 5343A microwave frequency counter is suggested, as shown in part (a) of Figure 4-1.

For tests that require equipment to be synchronized with each other, part (b) of Figure 4-1

shows the order in which the equipment should be connected.

Install the HP 70902A IF section in an HP 70000 Series mainframe that has

been mo died to allow access to the top of the module. Make sure that the

HP 70902A IF section's HP-MSIB address is correct. For information about

the parts required for the mainframe modication, refer to \Service Kit" in

Chapter 2. For information about the correct address for an HP 70902A IF

section, refer to the system-conguration information in the

Verication Manual

oscillator source).

for the system master (for example, HP 70900B lo cal

Installation and

Note

Do not use the output from the HP 3335A syn

input to any other instrument. The HP 3335A synthesizer/level generator

output is not stable enough to b e used as a frequency reference.

thesizer/level generator as the

4-2 Module Verification Tests

Figure 4-1. Preferred Frequency-Reference Connections

Module Verification Tests 4-3

1. Front Panel LED Check

Purpose

This procedure tests the functionality of the HP 70902A IF section ACTive and ERRor status

LEDs and asso ciated control circuitry. In order to light the ACTive LED and test its related

circuitry, a displaymust be congured into the system.

Description

The software prompts the op erator with questions requiring \yes" or \no" answers. Softkeys

are activated to allow the op erator to respond. The HP 70902A IF section passes this test if

the response to every question is \yes." No data is displayed. This is a nal test.

Equipment

HP 70000 Series Components:

Mainframe .................................. HP 70001A mainframe, mo died

Local oscillator ...........................HP

Display .........................................HP

70900A/B lo cal oscillator source

70205A graphics display

4-4 Module Verification Tests

Figure 4-2. LED Check Setup

2. Diagnostic Detectors Check

2. Diagnostic Detectors Check

Purpose

This test checks that the HP 70902A IF section diagnostic detectors are functional, and

measures the signal levels at which the detectors become active. These detectors report to the

local oscillator module if an insucient signal level is present inside the HP 70902A IF section

during the system-calibration routine, or during system diagnostics testing.

There are two detectors inside the mo dule. Detector 1 detects the level of the 21.4 MHz input

signal. Detector 2 detects the video-output voltage level.

Description

The level generator is connected to the power splitter input. One power splitter output is

connected to the 21.4 MHz input of the device under test (DUT). The other p ower splitter

output is connected, through the power sensor, to the power meter. The precision DVM is

connected to the DUT video output across a 50 termination. The level generator is tuned to

the center of the selected resolution bandwidth lter. Then, with the aid of the po

wer meter,

the level generator is set to provide a power level of06 dBm to the DUT 21.4 MHz input.

The level generator is then set to provide a023 dBm signal at the 21.4 MHz input. If an

y

detector is on (active) at this level, the test rep orts an error.

The level generator output is then increased in amplitude b

is monitored for detector turn-on. When a detector turns on, the lev

value that caused the detector to turn on is stored in a v

y 1 dB steps while the HP-MSIB

el generator amplitude

ariable. If the level generator reaches

13 dBm b efore all detectors turn on, the test rep orts an error.

After all detectors turn on, the level generator is returned to 10 dB belo

turn-on level and waits for the detector to turn o. After the detector turns o, the lev

w the rst detector

el

generator is set to 1.5 dB b elow the previously measured turn-on level. Then the level

generator amplitude level is increased by 0.1 dB steps until the detector turns on again. This

amplitude level is measured by the power meter and becomes the recorded turn-on level for

that detector. This process is rep eated for each detector.

Equipment

Level generator ......................... HP 3335A synthesizer/level generator

Power meter . . . . . .

..............................HP

Power sensor ..................................... HP

Power splitter . . . . . .................................HP

Precision DVM .................................HP

8902A measuring receiver

11722A sensor mo dule

11667A power splitter

3456A digital multimeter

HP 70000 Series Components:

Mainframe ..................................HP

70001A mainframe, mo died

Local oscillator ...........................HP 70900A/B local oscillator source

Accessories

HP 1250-0676 precision 50 SMB(f ) termination

Module Verification Tests 4-5

2. Diagnostic Detectors Check

Adapters

HP 1250-0780 50 N(m) to BNC(f )

HP 1250-0671 50 SMB(m) to N(m)

HP 1250-1391 50 SMB tee(f ) (m) (m)

HP 1251-2277 50 BNC(f ) to dual banana plug

Cables

HP 10503A 122 cm (48 in) 50 coax BNC(m) to BNC(m)

HP 8120-5016 160 mm (6.3 in) SMB(f ) to SMB(f)

HP 85680-60093 123 cm (48.4 in) 50 BNC(m) to SMB(f)

Figure 4-3. Diagnostic Detectors Check Setup

4-6 Module Verification Tests

3. 18.4 MHz Oscillator Stability Test

3. 18.4 MHz Oscillator Stability Test

Purpose

This test measures the stability of the HP 70902A IF section 18.4 MHz oscillator over a

ve-minute time span.

This is not a nal test, but it should be run if a problem is susp ected, or if repairs related to

the oscillator have been made.

Description

A frequency counter is connected to the 18.4 MHz output, and samples are taken over ve

minutes. If the oscillator drifts more than65Hzinve minutes, the test fails. The results are

displayed in a graph.

Equipment

Frequency counter ................................ HP

HP 70000 Series Components:

Mainframe ..................................HP

Local oscillator ...........................HP

Adapters

HP 1250-0669 50 SMB(m) to SMB(m)

HP 1250-0672 50 SMB(f ) to SMB(f )

Cables

HP 85680-60093 123 cm (48.4 in) 50 BNC(m) to SMB(f )

70001A mainframe, mo died

70900A/B local oscillator source

5316B universal counter

Module Verification Tests 4-7

3. 18.4 MHz Oscillator Stability Test

Figure 4-4. 18.4 MHz Oscillator Stability Test Setup

4-8 Module Verification Tests

4. DUT Calibration

4. DUT Calibration

Purpose

This test simulates the routines of the HP 70000 Series system calibration that pertain to the

HP 70902A IF sections. The purpose of this test is to establish log delity, absolute gain, and

resolution bandwidth correction factors. The correction factors will be used to make corrected

measurements in the following tests:

Corrected Mo dule Fidelity

Corrected Sensitivity

Third-Order Intercept

Spurious Responses

DUT Calibration must be run before performing any of the tests listed above.

Make sure covers are secure and mo dule is warmed up for at least one hour prior to running

tests.

Description

The level generator is connected to the power splitter input. One power splitter output is

connected to the 21.4 MHz input of the device under test (DUT). The other p o

output is connected, through the power sensor, to the power meter. With the aid of the po

wer splitter

wer

meter, the level generator is set to provide a power level of05 dBm to the DUT 21.4 MHz

input. (A05 dBm input should result in 2 Vdc being presen

t at the DUT video output.

Refer to \Absolute-Gain Error Correction".) The precision DVM is connected to the DUT

video output across a 50 termination.

Log-Fidelity Error Correction

As the calibration attenuator in the DUT HP 70902A IF section is stepped from 0 dB to

0

11 dB, the DUT video-output voltage is read for each step. After the011 dB reading,

the DUT calibration attenuator is reset to 0 dB, the RF atten

uator in the level generator is

stepped down 10 dB, and the DUT video-output voltage is read again.

This reading is compared to the previous010 dB reading, and any dierence is attributed

to RF-attenuator error. An oset, calculated to correct for this error, is applied to the next

0dBto011 dB decade as the measuring sequence is continued. In this fashion, log delityis

measured down to the HP 70902A IF section noise oor.

The correction factors are stored in a COMMON array for use b

y other tests.

Absolute-Gain Error Correction

Theoretically,a05 dBm input signal applied to the DUT 21.4 MHz input should result in

2 Vdc b eing present at the DUT video output. The absolute gain error is the dierence

between the theoretical input power of05 dBm and the actual input power required to obtain

2 Vdc at the DUT video output. The correction factor is the opp osite of this error.

Module Verification Tests 4-9

4. DUT Calibration

Bandwidth-Switching Error Correction

The level generator is tuned to the center of the DUT reference bandwidth, and then the DUT

video-output voltage is measured. This is the reference voltage.

The level generator is then tuned to the center of each bandwidth, and the resulting

video-output voltage is measured. The bandwidth-switching error is the dierence between

this voltage and the reference voltage. The correction factor is the opposite of the bandwidth

switching error.

Equipment

Level generator ......................... HP 3335A synthesizer/level generator

Power meter ....................................HP 8902A measuring receiver

Power sensor ..................................... HP 11722A sensor module

Power splitter . . . . . . ................................HP 11667A power splitter

Precision DVM ................................. HP 3456A digital multimeter

HP 70000 Series Components:

Mainframe .................................. HP

Local oscillator ...........................HP

70001A mainframe, mo died

70900A/B lo cal oscillator source

Accessories

HP 1250-0676 precision 50 SMB(f ) termination

Adapters

HP 1250-0780 50 N(m) to BNC(f )

HP 1250-0671 50 SMB(m) to N(m)

HP 1250-1391 50 SMB tee(f ) (m) (m)

HP 1251-2277 50 BNC(f ) to dual banana plug

Cables

HP 10503A 122 cm (48 in) 50 coax BNC(m) to BNC(m)

HP 8120-5016 160 mm (6.3 in) SMB(f ) to SMB(f)

HP 85680-60093 123 cm (48.4 in) 50 BNC(m) to SMB(f)

4-10 Module Verification Tests

4. DUT Calibration

Figure 4-5. DUT Calibration Setup

Module Verification Tests 4-11

5. Average Noise Test

Purpose

This test measures the noise o or of the HP 70902A IF section at each resolution bandwidth.

This test ensures the HP 70902A IF section is not contributing more than its share towards

the system displayed-average-noise sp ecication.

Description

The HP 70902A IF section 21.4 MHz input is terminated in 50. A precision DVM is

connected to the video output across a 50 termination. The precision DVM uses a

voltage-averaging routine to measure the average noise level accurately at each resolution

bandwidth setting in combination with several step gain settings. The results are converted to

dBm and displayed in a graph.

Equipment

Precision DVM ................................. HP

HP 70000 Series Components:

Mainframe .................................. HP

Local oscillator ...........................HP

Accessories

HP 1250-0676 precision 50 SMB(f ) termination

Adapters

HP 1251-2277 50 BNC(f ) to dual banana plug

Cables

HP 85680-60093 123 cm (48.4 in) 50 BNC(m) to SMB(f)

70001A mainframe, mo died

70900A/B lo cal oscillator source

(2 required)

3456A digital multimeter

4-12 Module Verification Tests

5. Average Noise Test

Figure 4-6. Average Noise Test Setup

Module Verification Tests 4-13

6. Corrected Sensitivity Test

Purpose

This test applies the correction factors generated by the DUT calibration routine, and then

measures the maximum sensitivity of the HP 70902A IF section. This assures that the

HP 70902A IF section will have adequate dynamic range to satisfy the system specication.

Description

The HP 70902A IF section 21.4 MHz input is terminated in 50. A precision DVM is

connected to the video output across a 50 termination. The HP 70902A IF section is set to

a 10 Hz bandwidth. Then, the precision DVM uses a voltage-averaging routine to measure the

noise oor of the HP 70902A IF section accurately. The correction factors are applied to this

measurement and reported in dBm.

Equipment

Precision DVM ................................. HP

HP 70000 Series Components:

Mainframe .................................. HP

Local oscillator ...........................HP

Accessories

HP 1250-0676 precision 50 SMB(f ) termination

Adapters

HP 1251-2277 50 BNC(f ) to dual banana plug

Cables

HP 85680-60093 123 cm (48.4 in) 50 BNC(m) to SMB(f)

70001A mainframe, mo died

70900A/B lo cal oscillator source

(2 required)

3456A digital multimeter

4-14 Module Verification Tests

6. Corrected Sensitivity Test

Figure 4-7. Corrected Sensitivity Test Setup

Module Verification Tests 4-15

6. Corrected Sensitivity Test

7. Third-Order Intercept Test

Purpose

This test measures the third-order intercept (TOI) of the distortion pro ducts that are

generated by the HP 70902A IF section. Compliance with this test ensures that the

HP 70902A IF section will not contribute signicantly to system TOI performance.

Description

Note

In addition to the connections mentioned, this test also requires external

frequency-reference connections. For information, refer to \Preferred

Frequency-Reference Connections".

A level generator and a synthesized source both function as synthesizers in this test. The

two synthesizers are connected to a directional bridge. The bridge output is connected to a

power splitter input. One output of the po

wer splitter is connected to a po

other output is connected to the HP 70902A IF section 21.4 MHz input. A precision D

wer sensor, the

VM is

connected to the HP 70902A IF section video output across a 50 termination.

Several routines are run that set each synthesizer to provide a05 dBm signal to the

HP 70902A IF section 21.4 MHz input while the other syn

amplitude. During one of these routines, the HP 70902A IF section video v

thesizer is set at minimum

oltage is measured

and then corrected for log delity errors, gain errors, and bandwidth-switching errors, using

the correction factors that were generated by the DUT calibration routine. The corrected

video voltage becomes the reference amplitude for the TOI measuremen

The two synthesizers are then set so that the third-order product generated b

HP 70902A IF section will appear in the cen

ter of the 21.4 MHz bandpass. The precision

ts.

y the

DVM measures the video voltage, the error-correction factors are added in, and then the

third-order intercept is calculated. This routine is rep eated for eac

h resolution bandwidth

lter, and a variety of tone spacings.

Equipment

Level generator ......................... HP 3335A synthesizer/level generator

Synthesized source ..................... HP

Precision DVM ................................. HP

Power meter ....................................HP

Power sensor ..................................... HP

Power splitter . . . . . . ................................HP

Directional bridge ............................... HP

8663A synthesized signal generator

3456A digital multimeter

8902A measuring receiver

11722A sensor mo dule

11667A power splitter

8721A directional bridge

HP 70000 Series Components:

Mainframe .................................. HP 70001A mainframe, mo died

Local oscillator ...........................HP 70900A/B lo cal oscillator source

Accessories

HP 1250-0676 precision 50 SMB(f ) termination

4-16 Module Verification Tests

Adapters

HP 1250-1473 precision 50 N(m) to BNC(m)

HP 1250-0671 50 SMB(m) to N(m)

HP 1250-1391 50 SMB tee(f ) (m) (m)

HP 1251-2277 50 BNC(f ) to dual banana plug

Cables

HP 10503A 122 cm (48 in) 50 coax BNC(m) to BNC(m)

HP 8120-5016 160 mm (6.3 in) SMB(f ) to SMB(f )

HP 85680-60093 123 cm (48.4 in) 50 BNC(m) to SMB(f )

7. Third-Order Intercept Test

Figure 4-8. Third-Order Intercept Test Setup

Module Verification Tests 4-17

8. Spurious Responses Test

Purpose

This test measures the relative amplitudes of several responses created in the HP 70902A

IF section. These responses include harmonics generated in the 21.4 MHz input lter, and

mixing products of the 21.4 MHz input signal and the 18.4 MHz oscillator. All responses are

measured relative to the amplitude of the 21.4 MHz input signal.

Description

The level generator is connected to the power splitter input. One power splitter output is

connected to the 21.4 MHz input of the device under test (DUT). The other power splitter

output is connected, through the power sensor, to the power meter. A precision DVM is

connected to the DUT video output across a 50 termination. The level generator is tuned

to the center of the selected resolution bandwidth lter, and then, with the aid of the power

meter, the level generator is set to provide a power level of05 dBm to the DUT 21.4 MHz

0

input. The DUT video-output v

oltage that results from the

used as the reference voltage. The operator is then prompted to insert the 21.4 MHz notc

5 dBm input is measured and

h

lter between the level generator and the power splitter. The level generator is tuned to

several frequencies that could cause unwanted responses within the HP 70902A IF section.

These test frequencies include 7.1333 MHz (21.4 MHz divided b

y three), and 10.7 MHz

(21.4 MHz divided bytwo). Either of these test frequencies may generate a 21.4 MHz product

inside the DUT 21.4 MHz input lter.

Frequencies of 3 MHz and 15.4 MHz are also tested. These test frequencies ma

unwanted responses as a result of mixing with the 18.4 MHz oscillator. The 21.4 MHz notc

y generate

h

lter is used to attenuate the 21.4 MHz product generated by the level generator when it

is tuned to 15.4 MHz. Otherwise, this product w

ould interfere with the response under

investigation.

The precision DVM measures the DUT video-output voltage resulting from each resp onse, and

then the corresp onding dBc value relativ e to the 21.4 MHz input signal is calculated.

Equipment

Level generator ......................... HP 3335A synthesizer/level generator

Power meter ....................................HP

Power sensor ..................................... HP

Power splitter . . . . . . ................................HP

Precision DVM ................................. HP

8902A measuring receiver

11722A sensor mo dule

11667A power splitter

3456A digital multimeter

HP 70000 Series Components:

Mainframe .................................. HP

70001A mainframe, mo died

Local oscillator ...........................HP 70900A/B lo cal oscillator source

4-18 Module Verification Tests

8. Spurious Responses Test

Accessories

HP 1250-0676 precision 50 SMB(f ) termination

21.4 MHz Notch Filter* ..................... HP 70902A Option K01 IF section

Adapters

HP 1250-0780 50 N(m) to BNC(f )

HP 1250-0671 50 SMB(m) to N(m)

HP 1250-1391 50 SMB tee(f ) (m) (m)

HP 1251-2277 50 BNC(f ) to dual banana plug

Cables

HP 10503A 122 cm (48 in) 50 coax BNC(m) to BNC(m)

HP 8120-5016 160 mm (6.3 in) SMB(f ) to SMB(f )

HP 85680-60093 123 cm (48.4 in) 50 BNC(m) to SMB(f )

Figure 4-9. Spurious Responses Test Setup

*For information on building a 21.4 MHz notc

Documentation" in Chapter 2.

h lter, refer to \21.4 MHz Notc

Module Verification Tests 4-19

h-Filter

9. Resolution Bandwidths Test

Purpose

This test measures the 3 dB bandwidth, center frequency, amplitude shift, and shape factor

(60 dB/3 dB ratio) of each HP 70902A IF section bandwidth lter. It tests only the 1 and 3

sequence of lters, not the 10 percent increments between lter stages.

Description

The level generator is connected to the power splitter input. One power splitter output is

connected to the 21.4 MHz input of the device under test (DUT). The other power splitter

output is connected, through the power sensor, to the power meter. The level generator is

tuned to the center of the selected resolution bandwidth lter. Then, with the aid of the

power meter, the level generator is set to provide a p ower level of05 dBm to the DUT

21.4 MHz input. The precision DVM is connected to the DUT video output across a 50

termination.

The synthesized source is connected, through a cable and adapter, to the 18.4 MHz oscillator

test point (A1J103). The frequency counter is connected to the limited IF output on the DUT

rear panel. The frequency counter measures the output signal, and the actual frequency of the

DUT 18.4 MHz oscillator is calculated.

The synthesized source is set to the calculated frequency at 8 dBm to \injection-lo c

k" the

18.4 MHz oscillator. This prevents drift in this oscillator from adding measurement error for

the duration of the test.

First, the reference bandwidth ( 100 Hz) is measured for center frequency, 3 dB bandwidth,

amplitude, and shap e factor. Then each of the other bandwidths is measured for cen

ter

frequency, 3 dB bandwidth, and shap e factor. Bandwidth amplitude-switching error is

measured relative to the reference bandwidth.

Equipment

Synthesized source ..................... HP 8663A synthesized signal generator

Frequency counter ................................ HP 5316A universal counter

Level generator ......................... HP 3335A synthesizer/level generator

Power meter ....................................HP 8902A measuring receiver

Power sensor ..................................... HP

Power splitter . . . . . . ................................HP

Precision DVM ................................. HP

11722A sensor mo dule

11667A power splitter

3456A digital multimeter

HP 70000 Series Components:

Mainframe .................................. HP

Local oscillator ...........................HP

70001A mainframe, mo died

70900A/B lo cal oscillator source

Accessories

HP 1250-0676 precision 50 SMB(f ) termination

4-20 Module Verification Tests

Adapters

HP 1250-0780 50 N(m) to BNC(f )

HP 1250-1476 precision 50 N(m) to BNC(f )

HP 1250-0671 50 SMB(m) to N(m)

HP 1250-1391 50 SMB tee(f ) (m) (m)

HP 1251-2277 50 BNC(f ) to dual banana plug

Cables

HP 10503A 122 cm (48 in) 50 coax BNC(m) to BNC(m)

HP 8120-5016 160 mm (6.3 in) SMB(f ) to SMB(f )

HP 85680-60093 123 cm (48.4 in) 50 BNC(m) to SMB(f )

9. Resolution Bandwidths Test

Module Verification Tests 4-21

9. Resolution Bandwidths Test

Figure 4-10. Resolution Bandwidths Test Setup

4-22 Module Verification Tests

10. Video Bandwidths Test

10. Video Bandwidths Test

Purpose

This test measures the dc error of the HP 70902A IF section video lters. The dc error

is dened as the shift in DUT video-output voltage measured as each video bandwidth is

selected. The shift is measured relative to the DUT video-output voltage present at the

reference video bandwidth (300 kHz).

Description

The level generator is connected to the power splitter input. One power splitter output is

connected to the 21.4 MHz input of the device under test (DUT). The other p ower splitter

output is connected, through the power sensor, to the power meter. The precision DVM is

connected to the DUT video output across a 50 termination. With the aid of the power

meter, the level generator is set to provide a power level of05 dBm to the DUT 21.4 MHz

input.

To measure the reference voltage, the level generator is set to provide 2 Vdc at the DUT video

output. To measure the dc error, each video bandwidth is selected and the DUT video-output

voltage for that bandwidth is measured. The dierences bet

ween these voltages and the

reference bandwidth voltage are reported as dc error.

Equipment

Level generator ......................... HP

Power meter . . . . . . ..............................HP

Power sensor ..................................... HP

Power splitter . . . . . .................................HP

Precision DVM .................................HP

3335A synthesizer/level generator

8902A measuring receiver

11722A sensor mo dule

11667A power splitter

3456A digital multimeter

HP 70000 Series Components:

Mainframe ..................................HP 70001A mainframe, mo died

Local oscillator ...........................HP 70900A/B local oscillator source

Accessories

HP 1250-0676 precision 50 SMB(f ) termination

Adapters

HP 1250-0780 50 N(m) to BNC(f )

HP 1250-0671 50 SMB(m) to N(m)

HP 1250-1391 50 SMB tee(f ) (m) (m)

HP 1251-2277 50 BNC(f ) to dual banana plug

Module Verification Tests 4-23

10. Video Bandwidths Test

Cables

HP 10503A 122 cm (48 in) 50 coax BNC(m) to BNC(m)

HP 8120-5016 160 mm (6.3 in) SMB(f ) to SMB(f)

HP 85680-60093 123 cm (48.4 in) 50 BNC(m) to SMB(f)

Figure 4-11. Video Bandwidths Test Setup

4-24 Module Verification Tests

11. Module Gain Test

11. Module Gain Test

Purpose

This test measures the dierence between05 dBm and the level of 21.4 MHz input signal

required to pro duce exactly 2 Vdc at the HP 70902A IF section video-output p ort.

Description

The level generator is connected to the power splitter input. One power splitter output is

connected to the 21.4 MHz input of the device under test (DUT). The other p ower splitter

output is connected, through the power sensor, to the power meter. The precision DVM is

connected to the DUT video output across a 50 termination.

The level generator is tuned to the center of the selected resolution bandwidth lter. The

level generator amplitude is adjusted to provide exactly 2 Vdc (as measured by the DVM) at

the DUT video output. The power meter takes a number of samples and averages them to

determine the signal level at the 21.4 MHz input accurately. This averaged value is compared

to05 dBm, and the dierence is reported.

Equipment

Level generator ......................... HP

Power meter . . . . . . ..............................HP

3335A synthesizer/level generator

8902A measuring receiver

Power sensor ..................................... HP

Power splitter . . . . . .................................HP

Precision DVM .................................HP

3456A digital multimeter

HP 70000 Series Components:

Mainframe ..................................HP

Local oscillator ...........................HP

70001A mainframe, mo died

70900A/B local oscillator source

Accessories

HP 1250-0676 precision 50 SMB(f ) termination

Adapters

HP 1250-0780 50 N(m) to BNC(f )

HP 1250-0671 50 SMB(m) to N(m)

HP 1250-1391 50 SMB tee(f ) (m) (m)

HP 1251-2277 50 BNC(f ) to dual banana plug

11722A sensor mo dule

11667A power splitter

Module Verification Tests 4-25

11. Module Gain Test

Cables

HP 10503A 122 cm (48 in) 50 coax BNC(m) to BNC(m)

HP 8120-5016 160 mm (6.3 in) SMB(f ) to SMB(f)

HP 85680-60093 123 cm (48.4 in) 50 BNC(m) to SMB(f)

Figure 4-12. Module Gain Test Setup

4-26 Module Verification Tests

12. Calibration Attenuator Test

12. Calibration Attenuator Test

Purpose

This test veries the accuracy of the HP 70902A IF section calibration attenuator. This

accuracy is critical to achieving specied system performance. The calibration attenuator is

used by the system to calibrate system log delity during the system-calibration routine. It is

also used by the system to adjust the HP 70902A IF section gain in some combinations of step

gain, bandwidth, and reference level.

Description

The calibration attenuator is a precise PIN-diode attenuator circuit consisting of 1 dB, 2 dB,

4dB,8dB, and 30 dB stages. It may be set from 0 dB to 15 dB, and 30 dB to 45 dB with

1 dB resolution. Atambient room temperature, the calibration attenuator 1 dB,2dB, 4 dB,

and 8 dB stages are specied to60.03 dB, and the 30 dB stage is sp ecied to60.05 dB.

The level generator is connected to the power splitter input. One power splitter output is

connected to the 21.4 MHz input of the device under test (DUT). The other p o

output is connected, through the signal sensor, to the measuring receiv

er. A precision DVM is

wer splitter

connected to the DUT video output across a 50 termination. The TUNED RF calibration of

the measuring receiver is rst checked, and then p erformed if necessary.

The level generator is set to provide016 dBm at the DUT 21.4 MHz input, and the DUT

video-output voltage is measured and used as the reference v

oltage. With the aid of the

measuring receiver, the level generator output is reduced in amplitude by exactly the value

of the calibration-attenuator step being measured. Then, the DUT video-output v

is measured. Next, the level generator is reset to the original amplitude of

0

oltage

16 dBm, the

calibration-attenuator step is activated, and the video voltage is again measured. The error

between this measurement and the previous voltage measurement is the attenuator error. This

measuring sequence is repeated for each stage of the calibration attenuator.

Equipment

Level generator ......................... HP 3335A synthesizer/level generator

Measuring receiver ..............................HP 8902A measuring receiver

Signal sensor ..................................... HP 11722A sensor mo dule

Power splitter . . . . . .................................HP 11667A power splitter

Precision DVM .................................HP

3456A digital multimeter

HP 70000 Series Components:

Mainframe ..................................HP

Local oscillator ...........................HP

70001A mainframe, mo died

70900A/B local oscillator source

Accessories

HP 1250-0676 precision 50 SMB(f ) termination

Module Verification Tests 4-27

12. Calibration Attenuator Test

Adapters

HP 1250-0780 50 N(m) to BNC(f )

HP 1250-0671 50 SMB(m) to N(m)

HP 1250-1391 50 SMB tee(f ) (m) (m)

HP 1251-2277 50 BNC(f ) to dual banana plug

Cables

HP 10503A 122 cm (48 in) 50 coax BNC(m) to BNC(m)

HP 8120-5016 160 mm (6.3 in) SMB(f ) to SMB(f)

HP 85680-60093 123 cm (48.4 in) 50 BNC(m) to SMB(f)

Figure 4-13. Calibration Attenuator Test Setup

4-28 Module Verification Tests

13. Corrected Module Fidelity Test

13. Corrected Module Fidelity Test

Purpose

This test measures the corrected delity of the HP 70902A IF section. Corrected delity

consists of the combinations of log delity performance, step gain accuracy, and sensitivity

at various resolution bandwidths. This delity is essential for achieving sp ecied system

performance.

Description

The level generator is connected, through a 10 dB step attenuator, to the power splitter input.

(The 10 dB step attenuator is used to increase the dynamic range of the level generator to

cover the range of05 dBm to01.5 dBm.)

Note

Because this test take approximately 20 minutes, a programmable 10 dB step

attenuator and accompanying attenuator driver are recommended. If these are

not available, a manual 10 dB step atten

uator may be used.

One power splitter output is connected to the 21.4 MHz input of the device under test (DUT).

The other p ower splitter output is connected, through the signal sensor, to the measuring

receiver. This provides highly accurate RF level measurements at 21.4 MHz, and is used

to establish reference amplitudes and calibrate the step atten

connected to the DUT video output across a 50 termination. The D

uator. The precision DVM is

VM is used to measure

the detected video-output voltage of the HP 70902A IF section accurately.A05 dBm input

results in approximately 2 Vdc being present at the DUT video output.

The level generator is tuned to the center of the chosen resolution bandwidth lter. The

desired step gain is programmed. The generator and step atten

uator are switched to

maximum attenuation to allow the precision DVM to sample the video output and determine

the noise o or. The step attenuator is set to the same value as the chosen step gain. The

generator is then stepped from 10 dB ab o

ve the reference level (at 2 Vdc) to the noise

oor. At high levels, one voltage reading is taken. As the noise o or is approached, a

voltage-averaging routine is used to remove the noise component statistically from the video

signal. (Fidelity measurements are not made within 10 dB of the noise o or, since the

uncertainties of these measurements render the data meaningless.)

Several combinations of resolution bandwidth and step gain are tested.

Module Verification Tests 4-29

13. Corrected Module Fidelity Test

Equipment

Level generator ......................... HP 3335A synthesizer/level generator

Measuring receiver ..............................HP 8902A measuring receiver

Signal sensor ..................................... HP 11722A sensor module

Power splitter . . . . . . ................................HP 11667A power splitter

Precision DVM ................................. HP 3456A digital multimeter

10 dB Step attenuator ............ HP 8496G Option 001 coaxial step attenuator

Attenuator driver ........................ HP 11713A attenuator/switch driver

HP 70000 Series Components:

Mainframe .................................. HP 70001A mainframe, mo died

Local oscillator ...........................HP 70900A/B lo cal oscillator source

Accessories

HP 1250-0676 precision 50 SMB(f ) termination

Adapters

HP 1250-0780 50 N(m) to BNC(f )

HP 1250-1476 precision 50 N(m) to BNC(f )

HP 1250-0671 50 SMB(m) to N(m)

HP 1250-1391 50 SMB tee(f ) (m) (m)

HP 1251-2277 50 BNC(f ) to dual banana plug

(3 required)

Cables

HP 10503A 122 cm (48 in) 50 coax BNC(m) to BNC(m)

HP 8120-5016 160 mm (6.3 in) SMB(f ) to SMB(f)

HP 85680-60093 123 cm (48.4 in) 50 BNC(m) to SMB(f)

4-30 Module Verification Tests

13. Corrected Module Fidelity Test

Figure 4-14. Corrected Module Fidelity Test Setup

Module Verification Tests 4-31

14. Crystal Spurs Test

Purpose

This test looks for spurious responses caused by parasitic oscillations of the resolution

bandwidth lter crystals. The spurious responses occur on the skirts of displayed signals, or,

in cases of very narrow resolution bandwidths, adjacent to displayed signals.

Description

The HP 70902A IF section is congured into an HP 70000 Series mo dular sp ectrum analyzer

system system. The system-calibration routine is performed. Then the HP 70902A IF section

is tested for crystal spurs. If any spurs are found, they are reported.

Equipment

HP 70000 Series Components:

Mainframe ...........................................HP 70001A mainframe

Local oscillator ...........................HP

Display .........................................HP

IF section ............................................ HP

RF section .......................................... HP

70900A/B lo cal oscillator source

70205A graphics display

70903A IF section

70904A RF section

Note

In addition to the cables listed b elow, additional cables will be needed to

congure the HP 70902A IF section under test into an HP 70000 Series

modular spectrum analyzer system. Refer to the

Analyzer Installation and Verication Manual

required cables.

Adapters

HP 1250-0780 50 N(m) to BNC(f )

Cables

HP 10503A 122 cm (48 in) 50 coax BNC(m) to BNC(m)

HP 70000 Modular Spectrum

for more information about the

4-32 Module Verification Tests