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Service Guide
HP 70900B
Local Oscillator Source

ABCDE
HP Part No. 70900-90293
Printed in USA June 1995
Edition A.0.0
Notice
The information contained in this document is subject to change without notice.
Hewlett-Packard makes no warranty of any 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, performance, or use of this material.
Restricted Rights Legend.
Use, duplication, or disclosure by the U.S. Government is subject to restrictions as set forth
in subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at
DFARS 252.227-7013 for DOD agencies, and subparagraphs (c) (1) and (c) (2) of the Commercial
Computer Software Restricted Rights clause at FAR 52.227-19 for other agencies.

Copyright Hewlett-Packard Company 1989, 1990, 1995
c

All Rights Reserved. Reproduction, adaptation, or translation without prior written permission
is prohibited, except as allowed under the copyright laws.
1400 Fountaingrove Parkway, Santa Rosa, CA 95403-1799, USA
Certi cation
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 period of one year from date of shipment. During the warranty period,
Hewlett-Packard Company will, at its option, either repair or replace products which prove to
be defective.
For warranty service or repair, this product must be returned to a service facility 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 products returned to Hewlett-Packard 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 improper 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-Packard products.
For any assistance, contact your nearest Hewlett-Packard Sales and Service Oce.

iii
Safety Symbols
The following safety symbols are used throughout this manual. Familiarize yourself with each
of the symbols and its meaning before operating this instrument.
CAUTION The CAUTION sign denotes a hazard. It calls attention to a procedure which, if
not correctly performed or adhered to, could result in damage to or destruction
of the product or the user's work. Do not proceed beyond a CAUTION sign
until the indicated conditions are fully understood and met.

WARNING The WARNING sign denotes a hazard. It calls attention to a procedure
which, if not correctly performed or adhered to, could result in injury
to the user. Do not proceed beyond a WARNING sign until the indicated
conditions are fully understood and met.
DANGER The DANGER sign denotes an imminent hazard to people. It warns the
reader of a procedure which, if not correctly performed or adhered to,
could result in injury or loss of life. Do not proceed beyond a DANGER
sign until the indicated conditions are fully understood and met.

iv
General Safety Considerations
WARNING The instructions in this document are for use by quali ed personnel
only. To avoid electrical shock, do not perform any servicing unless you
are quali ed to do so.
The opening of covers or removal of parts is likely to expose dangerous
voltages. Disconnect the instrument from all voltage sources while it is
being opened.
The power cord is connected to internal capacitors that may remain live
for ve seconds after disconnecting the plug from its power supply.
This is a Safety Class 1 Product (provided with a protective earthing
ground incorporated in the power cord). The mains plug shall only be
inserted in a socket outlet provided with a protective earth contact.
Any interruption of the protective conductor inside or outside of the
instrument is likely to make the instrument dangerous. Intentional
interruption is prohibited.
For continued protection against re hazard, replace fuse only with
same type and ratings, (type nA/nV). The use of other fuses or materials
is prohibited.

WARNING Before this instrument is switched on, make sure it has been properly
grounded 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.
Before this instrument is switched on, make sure its primary power
circuitry 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 power cable is plugged in.

v
Servicing at a Glance

vi
The local oscillator source is a module that is used in HP 70000 Series modular measurement
systems. A standard modular spectrum analyzer system includes a mainframe with an
RF section, IF section, local oscillator, an optional display, and an optional precision frequency
reference.
Software and documentation supplied This service guide is part of an Option OB3 package
which includes:
HP 70900B Service Guide
HP 70900B Component Level Information Packages
Module veri cation software disks.
Tools needed Before servicing, refer to Chapter 5 for a list of the tools and accessories 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
\Preparing a Static-Safe Work Station" in Chapter 4.

vii
In This Book
This book describes all of the service procedures necessary to test, adjust, calibrate,
troubleshoot, and repair your local oscillator source in an HP 70000 Series modular
measurement system.
Each module in the HP 70000 Series modular measurement 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.
This service guide is part of an Option OB3 package which consists of two manuals.
Manual 1
Chapter 1 provides information to help get you started so that your local oscillator source is
serviced properly.
Chapter 2 contains information needed to use module veri cation software while servicing
your local oscillator source.
Chapter 3 contains information to help identify and resolve some common problems that may
occur with your local oscillator source before extensive servicing.
Chapter 4 contains information about troubleshooting your local oscillator source. It
presents information on preparing a static-safe work station and then it presents a set of
troubleshooting procedures that can be used to optimize repair time.
Chapter 5 contains tables with a complete listing of all equipment that may be required for
servicing.
Chapter 6 contains the setups for all adjustment procedures that are used to optimize module
performance when assemblies are changed, repaired, or adjusted.
Chapter 7 contains the setups for all module veri cation tests that are used to optimize
module performance when assemblies are changed, repaired, or adjusted.
Chapter 8 contains the setups for all equipment calibration procedures that must be
performed in order to optimize module performance when assemblies are changed, repaired,
or adjusted.
Chapter 9 contains procedures for removal and replacement of major assemblies in your
local oscillator source. It also contains information needed to order mechanical parts for your
local oscillator source.
Chapter 10 contains information on all overall parts identi cation drawings that should be
used when performing the troubleshooting procedures descibed in this service guide.
An index is also added at the end of this service guide to aid the user in nding key items of
interest.
Manual 2
Manual 2 contains packets of component-level repair information for each
local oscillator source board assembly that has eld-replaceable parts. Each packet includes
the parts list, component-location drawing, and schematics for a speci c board-assembly part
number. This manual also contains a table that can be used to cross reference dierent board
assemblies that have dierent serial pre x breaks.
Before you begin servicing, you must become familiar with module veri cation software. For
information on how to use this module veri cation software, refer to Chapter 2.

viii
Contents
1. Getting Started
What Is Servicing? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
When Is Servicing Needed? . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
If You Want Hewlett-Packard to Service Your Local Oscillator Source . . . . . . 1-3
Determining Your Local Oscillator Source's Serial Number . . . . . . . . . . 1-3
Returning Your Local Oscillator Source for Service . . . . . . . . . . . . . . 1-5
2. Module Veri cation Software
Computer Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Alternate Key Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Computer Language Compatibility . . . . . . . . . . . . . . . . . . . . . 2-2
Printer Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Con guring the Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Installing Module Veri cation Software . . . . . . . . . . . . . . . . . . . . 2-5
Module Veri cation Software Overview . . . . . . . . . . . . . . . . . . . . 2-7
Testing Multiple Modules . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Error Messages or Warnings De ned . . . . . . . . . . . . . . . . . . . . 2-7
Final Tests De ned . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Single Tests De ned . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Printing Test Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Edit and Command Screen Menus . . . . . . . . . . . . . . . . . . . . . . 2-9
Edit Screen Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Command Screen Menus . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Cursor Keys and Menu Selections . . . . . . . . . . . . . . . . . . . . . 2-10
Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Mass Storage Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Mass Storage Menu Edit Screen . . . . . . . . . . . . . . . . . . . . . . 2-12
Mass Storage Menu Command Screen . . . . . . . . . . . . . . . . . . . 2-12
Parameter Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Parameter Menu Edit Screen . . . . . . . . . . . . . . . . . . . . . . . 2-12
Parameter Menu Command Screen . . . . . . . . . . . . . . . . . . . . 2-13
Equipment Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Equipment Menu Edit Screen . . . . . . . . . . . . . . . . . . . . . . . 2-14
Equipment Menu Command Screen . . . . . . . . . . . . . . . . . . . . 2-14
Edit Calibration Data . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Edit Calibration Data Edit Screen . . . . . . . . . . . . . . . . . . . . . 2-16
Edit Calibration Data Command Screen . . . . . . . . . . . . . . . . . . 2-16
HP-MSIB Address Menu . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Test Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Test Menu Command Screen . . . . . . . . . . . . . . . . . . . . . . . 2-17
Error and Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

Contents-1
3. Before Extensive Servicing
If the System's Power-On Self Test Fails . . . . . . . . . . . . . . . . . . . . 3-2
If Your HP 70900B Local Oscillator Source Is Powered On But Not Responding
Correctly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
If the STATUS ERR Indicator LED on the HP 70900B Local Oscillator Source is
Flashing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
If More Than One Module's Error Indicator Is Flashing . . . . . . . . . . . . . 3-6
4. Troubleshooting
Preparing a Static-Safe Work Station . . . . . . . . . . . . . . . . . . . . . 4-2
Troubleshooting Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
If Operating Errors Messages (2000{2999) Occur . . . . . . . . . . . . . . . . 4-7
If Hardware Error Messages (7000{7999) Occur . . . . . . . . . . . . . . . . 4-8
If Series 8000 Error Messages (8000{8999) Occur . . . . . . . . . . . . . . . . 4-18
If Series 9000 Error Messages (9000{9999) Occur . . . . . . . . . . . . . . . . 4-19
A1A1 Host/Processor and A1A2 1/4 MB RAM/ROM Troubleshooting . . . . . . . 4-20
A3 Power Supply Troubleshooting . . . . . . . . . . . . . . . . . . . . . . 4-23
A4 Idler Phase-Lock Loop Troubleshooting . . . . . . . . . . . . . . . . . . 4-25
A6 YTO Phase-Lock Loop/A8 Frequency Control Troubleshooting . . . . . . . . 4-31
A7 FRAC'N Synthesizer Troubleshooting . . . . . . . . . . . . . . . . . . . 4-37
If You Have Veri cation Test Failures . . . . . . . . . . . . . . . . . . . . . 4-40
If You Have Adjustment Procedure Failures . . . . . . . . . . . . . . . . . . 4-47
Performing Related Adjustments and Veri cation Tests . . . . . . . . . . . . . 4-53
The State Worksheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-57
Overall Block Diagram of Local Oscillator Source . . . . . . . . . . . . . . . 4-59
5. Recommended Test Equipment Tables
300 MHz Up-Converter Construction Procedure . . . . . . . . . . . . . . . . 5-4
Snier Loop Construction Procedure . . . . . . . . . . . . . . . . . . . . . 5-9
Resistive Divider Construction Procedure . . . . . . . . . . . . . . . . . . . 5-10
6. Adjustment Procedures
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Types of Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Adjustment 01. Video Processor . . . . . . . . . . . . . . . . . . . . . . . 6-8
Adjustment 02. 100 MHz Reference/300 MHz Bandpass Filter . . . . . . . . . . 6-11
Adjustment 03. 300 MHz Bandpass Filter . . . . . . . . . . . . . . . . . . . 6-15
Adjustment 04. Calibrator Output Frequency . . . . . . . . . . . . . . . . . 6-18
Adjustment 05. Calibrator Output Amplitude . . . . . . . . . . . . . . . . . 6-19
Adjustment 06. 300 MHz Reference Output Amplitude . . . . . . . . . . . . . 6-20
Adjustment 07. FFS VCO . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22
Adjustment 08. FFS Tune/Comp Coarse . . . . . . . . . . . . . . . . . . . . 6-24
Adjustment 09. FFS Reference Null . . . . . . . . . . . . . . . . . . . . . . 6-26
Adjustment 10. FFS API 1 . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28
Adjustment 11. FFS API 2 . . . . . . . . . . . . . . . . . . . . . . . . . . 6-30
Adjustment 12. FFS API 3 . . . . . . . . . . . . . . . . . . . . . . . . . . 6-31
Adjustment 13. FFS Tune/Comp Fine . . . . . . . . . . . . . . . . . . . . . 6-32
Adjustment 14. FFS Spurious Responses . . . . . . . . . . . . . . . . . . . 6-34
Adjustment 15. Low Idler . . . . . . . . . . . . . . . . . . . . . . . . . . 6-36
Adjustment 16. Sweep Oset . . . . . . . . . . . . . . . . . . . . . . . . . 6-38
Adjustment 17. Frequency Control Voltage References . . . . . . . . . . . . . 6-40
Adjustment 18. YTO Frequency Endpoints . . . . . . . . . . . . . . . . . . 6-42
Adjustment 19. FM Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-45
Adjustment 20. Sweep Overshoot . . . . . . . . . . . . . . . . . . . . . . . 6-47
Adjustment 21. Tune + Span Oset . . . . . . . . . . . . . . . . . . . . . 6-49

Contents-2
Adjustment 22. Idler Buer . . . . . . . . . . . . . . . . . . . . . . . . . 6-51
7. Module Veri cation Tests
Veri cation Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Recommended Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Test 01. 300 MHz Reference Output Power and Harmonics . . . . . . . . . . . 7-4
Test 02. LO Output Power and Harmonics . . . . . . . . . . . . . . . . . . . 7-5
Test 03. Residual FM (Span >10 MHz) . . . . . . . . . . . . . . . . . . . . . 7-6
Test 04. LO Output Spurious Response . . . . . . . . . . . . . . . . . . . . 7-7
Test 05. LO Display Sidebands . . . . . . . . . . . . . . . . . . . . . . . . 7-9
Test 06. LO 40 kHz Sidebands . . . . . . . . . . . . . . . . . . . . . . . . 7-11
Test 07. Reference Oscillator Accuracy . . . . . . . . . . . . . . . . . . . . 7-13
Test 08. Calibrator Amplitude Accuracy . . . . . . . . . . . . . . . . . . . . 7-15
Test 09. 300 MHz Reference Amplitude Accuracy . . . . . . . . . . . . . . . 7-16
Test 10. Video Detector Tracking . . . . . . . . . . . . . . . . . . . . . . . 7-17
Test 11. External Triggering . . . . . . . . . . . . . . . . . . . . . . . . . 7-18
Test 12. Video Processor Noise . . . . . . . . . . . . . . . . . . . . . . . . 7-19
Test 13. LO Frequency and Span Accuracy (Span >10 MHz) . . . . . . . . . . 7-20
Test 14. LO Span Accuracy (Phase-Locked Spans) . . . . . . . . . . . . . . . 7-21
Test 15. LO Frequency Accuracy (Span 10 MHz) . . . . . . . . . . . . . . . 7-22
Test 16. LO Frequency Error versus Sweep Time . . . . . . . . . . . . . . . 7-23
Test 17. Tune + Span Output Accuracy . . . . . . . . . . . . . . . . . . . 7-24
Test 18. SWP Output Accuracy . . . . . . . . . . . . . . . . . . . . . . . . 7-25
Test 19. HSWP Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . 7-26
Test 20. Line Triggering . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-27
Test 21. LED Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-29
Test 22. Video Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . 7-30
Test 23. 300 MHz Reference 40 kHz Sidebands . . . . . . . . . . . . . . . . . 7-31
Test 24. Calibrator Harmonics . . . . . . . . . . . . . . . . . . . . . . . . 7-33
Test 25. Calibrator Output Impedance . . . . . . . . . . . . . . . . . . . . . 7-34
Test 26. 300 MHz Reference Isolation . . . . . . . . . . . . . . . . . . . . . 7-36
Test 27. External Reference . . . . . . . . . . . . . . . . . . . . . . . . . 7-38
Test 28. Reference Oscillator Noise and Stability . . . . . . . . . . . . . . . . 7-40
Test 29. YTO Linearity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-41
8. System Calibration
External Frequency Reference . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Spectrum Analyzer/RF Cable Calibration . . . . . . . . . . . . . . . . . . . 8-6
9. Replacing Major Assemblies
A1A1 Host/Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
A1A2 1/4 MB RAM/ROM . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
A2 Video Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6
A3 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7
A4 Idler Phase-Lock Loop . . . . . . . . . . . . . . . . . . . . . . . . . . 9-9
A4A1 300 MHz Ampli er . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11
A4A2 Idler Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13
A6 YTO Phase-Lock Loop . . . . . . . . . . . . . . . . . . . . . . . . . . 9-15
A6A1 100 MHz Reference . . . . . . . . . . . . . . . . . . . . . . . . . . 9-18
A6A2 YTO Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-20
A6A3 Idler Buer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-22
A6A4 YTO Lock Microcircuit . . . . . . . . . . . . . . . . . . . . . . . . . 9-23
A6A5 YTO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-25
A7 FRAC'N Synthesizer for Serial #3219A01388 and Above . . . . . . . . . . . 9-27
A7 FRAC'N Synthesizer for Serial #3144A01387 and Below . . . . . . . . . . . 9-31

Contents-3
A8 Frequency Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-37
A9 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-38
10. Overall Parts Identi cation Drawings
Front View Identi cation . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2
Rear View Identi cation . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4
Top View Identi cation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-6
Bottom View Identi cation . . . . . . . . . . . . . . . . . . . . . . . . . . 10-15
Side View Identi cation . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-16
Side View Identi cation (A4 Idler Phase-Lock Loop) . . . . . . . . . . . . . . 10-18
Side View Identi cation (A6 YTO Phase-Lock Loop) . . . . . . . . . . . . . . 10-19
Side View Identi cation (A7 FRAC'N Synthesizer) . . . . . . . . . . . . . . . 10-21
Index

Contents-4
Figures
1-1. Typical Serial Number Label . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2-1. Main Menu Softkeys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
2-2. Mass Storage Menu and Parameter Menu Softkeys . . . . . . . . . . . . . . 2-20
2-3. Equipment Menu and HP-MSIB Map Screen Menu Softkeys . . . . . . . . . . 2-21
2-4. Test Menu Softkeys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
3-1. Line Voltage Selector . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3-2. Line Fuse Removal and Replacement . . . . . . . . . . . . . . . . . . . . 3-2
4-1. Static-Safe Work Station . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4-2. Troubleshooting Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4-3. Block Diagram of A7 FRAC'N Synthesizer for Serial #3144A01387 and Below . 4-59
4-4. Overall Block Diagram of Local Oscillator Source . . . . . . . . . . . . . . 4-61
5-1. 300 MHz Up-Converter Block Diagram . . . . . . . . . . . . . . . . . . . 5-4
5-2. 300 MHz Up-Converter Assembly Diagram . . . . . . . . . . . . . . . . . . 5-6
5-3. Power Levels through RF Chain . . . . . . . . . . . . . . . . . . . . . . 5-7
5-4. Snier Loop Assembly Diagram . . . . . . . . . . . . . . . . . . . . . . . 5-9
5-5. Resistive Divider Schematic Diagram . . . . . . . . . . . . . . . . . . . . 5-10
5-6. Resistive Divider Assembly Diagram . . . . . . . . . . . . . . . . . . . . 5-10
6-1. Equipment Setup for Adjustment 01. Video Processor . . . . . . . . . . . . 6-8
6-2. Locations for Adjustment 01. Video Processor . . . . . . . . . . . . . . . . 6-9
6-3. Equipment Setup for Adjustment 02. 100 MHz Reference/300 MHz Bandpass
Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
6-4. Locations for Adjustment 02. 100 MHz Reference/300 MHz Bandpass Filter . . 6-11
6-5. Placing A1A1 Host/Processor and A3 Power Supply on Extender Cables . . . . 6-12
6-6. Equipment Setup for Adjustment 03. 300 MHz Bandpass Filter . . . . . . . . 6-15
6-7. Locations for Adjustment 03. 300 MHz Bandpass Filter . . . . . . . . . . . . 6-15
6-8. Placing A1A1 Host/Processor and A2 Video Processor on Extender Cables . . . 6-16
6-9. Equipment Setup for Adjustment 04. Calibrator Output Frequency . . . . . . 6-18
6-10. Equipment Setup for Adjustment 05. Calibrator Output Amplitude . . . . . . 6-19
6-11. Equipment Setup for Adjustment 06. 300 MHz Reference Output Amplitude . 6-20
6-12. Locations for Adjustment 06. 300 MHz Reference Output Amplitude . . . . . 6-20
6-13. Equipment Setup for Adjustment 07. FFS VCO . . . . . . . . . . . . . . . 6-22
6-14. Locations for Adjustment 07. FFS VCO . . . . . . . . . . . . . . . . . . . 6-22
6-15. Equipment Setup for Adjustment 08. FFS Tune/Comp Coarse . . . . . . . . . 6-24
6-16. Locations for Adjustment 08. FFS Tune/Comp Coarse . . . . . . . . . . . . 6-24
6-17. Equipment Setup for Adjustment 09. FFS Reference Null . . . . . . . . . . 6-26
6-18. Locations for Adjustment 09. FFS Reference Null . . . . . . . . . . . . . . 6-26
6-19. Equipment Setup for Adjustment 10. FFS API 1 . . . . . . . . . . . . . . . 6-28
6-20. Locations for Adjustment 10. FFS API 1 (1 of 2) . . . . . . . . . . . . . . . 6-28
6-21. Locations for Adjustment 10. FFS API 1 (2 of 2) . . . . . . . . . . . . . . . 6-29
6-22. Equipment Setup for Adjustment 13. FFS Tune/Comp Fine . . . . . . . . . . 6-32
6-23. Equipment Setup for Adjustment 14. FFS Spurious Responses . . . . . . . . 6-34
6-24. Equipment Setup for Adjustment 15. Low Idler . . . . . . . . . . . . . . . 6-36
6-25. Locations for Adjustment 15. Low Idler . . . . . . . . . . . . . . . . . . . 6-36
6-26. Equipment Setup for Adjustment 16. Sweep Oset . . . . . . . . . . . . . 6-38
6-27. Locations for Adjustment 16. Sweep Oset . . . . . . . . . . . . . . . . . 6-38
6-28. Equipment Setup for Adjustment 17. Frequency Control Voltage References . 6-40

Contents-5
6-29. Locations for Adjustment 17. Frequency Control Voltage References . . . . . 6-40
6-30. Equipment Setup for Adjustment 18. YTO Frequency Endpoints . . . . . . . 6-42
6-31. Locations for Adjustment 18. YTO Frequency Endpoints (1 of 2) . . . . . . . 6-42
6-32. Locations for Adjustment 18. YTO Frequency Endpoints (2 of 2) . . . . . . . 6-43
6-33. Equipment Setup for Adjustment 19. FM Gain . . . . . . . . . . . . . . . . 6-45
6-34. Locations for Adjustment 19. FM Gain . . . . . . . . . . . . . . . . . . . 6-45
6-35. Equipment Setup for Adjustment 20. Sweep Overshoot . . . . . . . . . . . 6-47
6-36. Locations for Adjustment 20. Sweep Overshoot . . . . . . . . . . . . . . . 6-47
6-37. Equipment Setup for Adjustment 21. Tune + Span Oset . . . . . . . . . . 6-49
6-38. Locations for Adjustment 21. Tune + Span Oset . . . . . . . . . . . . . . 6-49
6-39. Equipment Setup for Adjustment 22. Idler Buer . . . . . . . . . . . . . . 6-51
6-40. Locations for Adjustment 22. Idler Buer . . . . . . . . . . . . . . . . . . 6-52
7-1. System Rear-Panel Connections . . . . . . . . . . . . . . . . . . . . . . . 7-3
7-2. 300 MHz Reference Output Power and Harmonics Test Setup . . . . . . . . . 7-4
7-3. LO Output Power and Harmonics Test Setup . . . . . . . . . . . . . . . . . 7-5
7-4. Residual FM (Span >10 MHz) Test Setup . . . . . . . . . . . . . . . . . . . 7-6
7-5. LO Output Spurious Response Test Setup . . . . . . . . . . . . . . . . . . 7-7
7-6. LO Display Sidebands Test Setup . . . . . . . . . . . . . . . . . . . . . . 7-9
7-7. LO 40 kHz Sidebands Test Setup . . . . . . . . . . . . . . . . . . . . . . 7-11
7-8. Reference Oscillator Accuracy Test Setup . . . . . . . . . . . . . . . . . . 7-13
7-9. Calibrator Amplitude Accuracy Test Setup . . . . . . . . . . . . . . . . . . 7-15
7-10. 300 MHz Reference Amplitude Accuracy Test Setup . . . . . . . . . . . . . 7-16
7-11. Video Detector Tracking Test Setup . . . . . . . . . . . . . . . . . . . . . 7-17
7-12. External Triggering Test Setup . . . . . . . . . . . . . . . . . . . . . . . 7-18
7-13. Test Setup for Test 12. Video Processor Noise . . . . . . . . . . . . . . . . 7-19
7-14. LO Frequency and Span Accuracy (Span >10 MHz) Test Setup . . . . . . . . 7-20
7-15. LO Span Accuracy (Phase-Locked Spans) Test Setup . . . . . . . . . . . . . 7-21
7-16. LO Frequency Accuracy (Span 10 MHz) Test Setup . . . . . . . . . . . . . 7-22
7-17. LO Frequency Error versus Sweep Time Test Setup . . . . . . . . . . . . . 7-23
7-18. Tune + Span Output Accuracy Test Setup . . . . . . . . . . . . . . . . . . 7-24
7-19. SWP Output Accuracy Test Setup . . . . . . . . . . . . . . . . . . . . . . 7-25
7-20. HSWP Output Voltage Test Setup . . . . . . . . . . . . . . . . . . . . . . 7-26
7-21. Line Triggering Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . 7-27
7-22. Test Setup for Test 21. LED Check . . . . . . . . . . . . . . . . . . . . . 7-29
7-23. Video Bandwidth Test Setup . . . . . . . . . . . . . . . . . . . . . . . . 7-30
7-24. 300 MHz Reference 40 kHz Sidebands Test Setup . . . . . . . . . . . . . . 7-31
7-25. Calibrator Harmonics Test Setup . . . . . . . . . . . . . . . . . . . . . . 7-33
7-26. Calibrator Output Impedance Test Setup . . . . . . . . . . . . . . . . . . . 7-34
7-27. 300 MHz Reference Isolation Test Setup . . . . . . . . . . . . . . . . . . . 7-36
7-28. External Reference Test Setup . . . . . . . . . . . . . . . . . . . . . . . 7-38
7-29. Reference Oscillator Noise and Stability Test Setup . . . . . . . . . . . . . . 7-40
7-30. Test Setup for Test 29. YTO Linearity . . . . . . . . . . . . . . . . . . . . 7-41
8-1. Preferred Frequency Reference Connections . . . . . . . . . . . . . . . . 8-3
8-2. Using an HP 70310A Precision Frequency Reference . . . . . . . . . . . . . 8-4
8-3. Using an HP 70310A Precision Frequency Reference and a House Standard . . 8-4
8-4. Using an HP 8566B Spectrum Analyzer and a House Standard . . . . . . . . 8-5
8-5. Reference Calibration Test Setup . . . . . . . . . . . . . . . . . . . . . . 8-6
8-6. IF Calibration Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
8-7. RF Calibration Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . 8-7
9-1. A1A1 Host/Processor Removal/Replacement . . . . . . . . . . . . . . . . . 9-4
9-2. A2 Video Processor Removal/Replacement . . . . . . . . . . . . . . . . . . 9-6
9-3. A3 Power Supply Removal/Replacement . . . . . . . . . . . . . . . . . . . 9-8
9-4. A4 Idler Phase-Lock Loop Removal/Replacement . . . . . . . . . . . . . . 9-10
9-5. A4A1 300 MHz Ampli er Removal/Replacement . . . . . . . . . . . . . . . 9-12
9-6. A4A2 Idler Lock and A4A3 Idler VCO Microcircuit Removal/Replacement . . . 9-14

Contents-6
9-7. A6 YTO Phase-Lock Loop Removal/Replacement (1 of 2) . . . . . . . . . . . 9-16
9-7. A6 YTO Phase-Lock Loop Removal/Replacement (2 of 2) . . . . . . . . . . . 9-17
9-8. A6A1 100 MHz Reference Removal/Replacement . . . . . . . . . . . . . . . 9-19
9-9. A6A2 YTO Lock Removal/Replacement . . . . . . . . . . . . . . . . . . . 9-21
9-10. A6A3 Idler Buer Removal/Replacement . . . . . . . . . . . . . . . . . . 9-22
9-11. A6A4 YTO Lock Microcircuit Removal/Replacement . . . . . . . . . . . . . 9-24
9-12. A6A5 YTO Removal/Replacement . . . . . . . . . . . . . . . . . . . . . . 9-26
9-13. A7 FRAC'N Synthesizer Removal/Replacement for Serial #3219A01388 and
Above . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-28
9-14. A7A1 FFS Phase Lock Loop Removal/Replacement for Serial #3219A01388 and
Above . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-30
9-15. A7 FRAC'N Synthesizer Removal/Replacement for Serial #3144A01387 and
Below . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-32
9-16. A7A1 FFS Phase Lock Loop Removal/Replacement for Serial #3144A01387 and
Below . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-34
9-17. A7A2 FFS Analog Removal/Replacement for Serial #3144A01387 and Below . . 9-36
9-18. A8 Frequency Control Removal/Replacement . . . . . . . . . . . . . . . . 9-37
9-19. A9 Front Panel Removal/Replacement . . . . . . . . . . . . . . . . . . . . 9-38
10-1. Overall Parts Identi cation Drawing, Front View (A9 Front Panel) . . . . . . 10-2
10-2. Overall Parts Identi cation Drawing, Front View . . . . . . . . . . . . . . 10-3
10-3. Overall Parts Identi cation Drawing, Front View (Panel Removed) . . . . . . 10-3
10-4. Overall Parts Identi cation Drawing, Rear View (Rear-Frame) . . . . . . . . 10-4
10-5. Overall Parts Identi cation Drawing, Rear Panel Connectors . . . . . . . . . 10-5
10-6. Overall Parts Identi cation Drawing, Top View . . . . . . . . . . . . . . . 10-6
10-7. Overall Parts Identi cation Drawing, Top View (Assembly Locations) . . . . . 10-8
10-8. Overall Parts Identi cation Drawing, Top View (Cable Locations) . . . . . . . 10-10
10-9. Overall Parts Identi cation Drawing, Top View (Connector Locations) . . . . . 10-14
10-10. Overall Parts Identi cation Drawing, Bottom View . . . . . . . . . . . . . . 10-15
10-11. Overall Parts Identi cation Drawing, Side View . . . . . . . . . . . . . . . 10-16
10-12. Overall Parts Identi cation Drawing, Left-Side View . . . . . . . . . . . . . 10-17
10-13. Overall Parts Identi cation Drawing, Side View (A4 Idler Phase-Lock Loop) . . 10-18
10-7. Overall Parts Identi cation Drawing, Side View (A6 YTO Phase-Lock Loop) . . 10-20
10-8. Overall Parts Identi cation Drawing, Side View (A7 FRAC'N Synthesizer) . . . 10-21

Contents-7
Tables
1-1. Hewlett-Packard Sales and Service Oces . . . . . . . . . . . . . . . . . . 1-4
1-2. Packaging for a 2/8 Module . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3-1. Default HP-MSIB Address Map . . . . . . . . . . . . . . . . . . . . . . . 3-3
4-1. Static-Safe ESD Accessories . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4-2. A3 Power Supply Measurements . . . . . . . . . . . . . . . . . . . . . . 4-24
4-3. Measurements at A6A1 100 MHz Reference (J6) and (J7) Pin 4 . . . . . . . . 4-37
4-4. State Worksheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-57
5-1. Recommended Test Equipment . . . . . . . . . . . . . . . . . . . . . . . 5-1
5-2. Components for the 300 MHz Up-Converter . . . . . . . . . . . . . . . . . 5-5
5-3. 300 MHz Up-Converter Parts List . . . . . . . . . . . . . . . . . . . . . . 5-6
5-4. Snier Loop Assembly Parts List . . . . . . . . . . . . . . . . . . . . . . 5-9
5-5. Resistive Divider Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
6-1. Adjustable Components . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
6-2. Equipment Required for Adjustments . . . . . . . . . . . . . . . . . . . . 6-5
9-1. Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

Contents-8
1
Getting Started
This chapter provides information to help get you started so that your local oscillator source is
serviced properly.
This chapter answers the questions \What Is Servicing?" and \When Is Servicing Needed?". It
then describes the procedures used to return your local oscillator source to Hewlett-Packard for
servicing.

Getting Started 1-1
What Is Servicing?
Servicing includes testing, adjusting, calibrating, troubleshooting, and repairing.
There are dierent categories of testing available. These categories are module veri cation
tests, system veri cation of operation tests, and system performance tests.
Module Module veri cation tests are used to test modules so that when assembled
Veri cation Tests into a system, the system meets the system's speci cations. These sets of
tests are used during servicing.
System System veri cation of operation tests are used to verify the proper
Veri cation of operation of an instrument and to verify that the instrument meets
Operation Tests approximately 80% of its measurement related speci cations. These sets of
tests are subsets of system performance tests.
System System performance tests are used to verify the proper operation of a
Performance complete modular measurement system (MMS) to full system speci cations.
Tests
This service guide provides information related to testing, adjusting, calibrating,
troubleshooting, and repairing your local oscillator source; it also provides information on
module veri cation tests. These sets of tests are used during servicing.
For information related to system veri cation of operation tests, refer to the HP 70000 Modular
Spectrum Analyzer Installation and Veri cation Manual, and for information related to
system performance tests, refer to the documentation for HP 11990A system performance test
software.

When Is Servicing Needed?
Servicing is needed:
if error messages are displayed on your HP 70000 Series display
if an ERROR LED or FAULT LED is on
to perform repairs or adjustments or both
to verify the correct operation of your local oscillator source
or, if applicable, when upgrading rmware
If you determine that your local oscillator source needs servicing, you can perform
the servicing yourself using the information in this manual or, you can return your
local oscillator source to a Hewlett-Packard service center.

1-2 Getting Started
If You Want Hewlett-Packard to Service Your
Local Oscillator Source
Before calling Hewlett-Packard or returning your local oscillator source 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 local oscillator source by
its full model 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 Local Oscillator Source's Serial Number
When a module 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 label 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
sux and consists of the last ve digits on the serial number label. The serial number pre x is
the same for all identical modules; it only changes when a change in the electrical or physical
functionality is made. The serial number sux, however, changes sequentially and is dierent
for each module.

Figure 1-1. Typical Serial Number Label

Getting Started 1-3
Table 1-1. Hewlett-Packard Sales and Service Oces
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
(800) 752-0900 Switzerland (415) 857-5027
(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 (P.O. Box 221)
Fullerton, CA 92631 1 Avenue Du Canada Blackburn, Victoria 3130
(714) 999-6700 Zone D'Activite De Courtaboeuf (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
(415) 694-2000 Germany Trans-Canada Highway
Hewlett-Packard GmbH Kirkland, Quebec H9J 2X8
Colorado Hewlett-Packard-Strasse Canada
Hewlett-Packard Co. 61352 Bad Homburg (514) 697-4232
24 Inverness Place, East Germany
Englewood, CO 80112 (+49 6172) 16-0
(303) 649-5000 Japan
Great Britain Yokogawa-Hewlett-Packard Ltd.
Georgia Hewlett-Packard Ltd. 1-27-15 Yabe, Sagamihara
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
(404) 955-1500 (44 734) 696622
China
Illinois China Hewlett-Packard, Co.
Hewlett-Packard Co. 38 Bei San Huan X1 Road
5201 Tollview Drive Shuang Yu Shu
Rolling Meadows, IL 60008 Hai Dian District
(708) 342-2000 Beijing, China
(86 1) 256-6888
New Jersey
Hewlett-Packard Co. Singapore
150 Green Pond Road Hewlett-Packard Singapore
Rockaway, NJ 07866 Pte. Ltd.
(201) 586-5400 Alexandra P.O. Box 87
Singapore 9115
Texas (65) 271-9444
Hewlett-Packard Co.
930 E. Campbell Rd. Taiwan
Richardson, TX 75081 Hewlett-Packard Taiwan
(214) 231-6101 8th Floor, H-P Building
337 Fu Hsing North Road
Taipei, Taiwan
(886 2) 712-0404

1-4 Getting Started
Returning Your Local Oscillator Source for Service
Hewlett-Packard has sales and service oces around the world to provide complete support
for your local oscillator source. To obtain servicing information or to order replacement parts,
contact the nearest Hewlett-Packard sales and service oce listed in Table 1-1.
Use the following procedure to return your local oscillator source 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 be 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 performance of the local oscillator source
CAUTION Damage can result if the original packaging materials are not used. Packaging
materials should be anti-static and should cushion the local oscillator source 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 electricity or by lodging in fan motors.

2. Place the local oscillator source in its original packaging materials.
If the original packaging materials are not available, you can contact a Hewlett-Packard
sales and service oce to obtain information on packaging 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 Hayward, California, 94545.
3. Surround the local oscillator source with at least 3 to 4 inches of its original packing material
or bubble-pack to prevent the local oscillator source from moving in its shipping container.
4. Place the local oscillator source, 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 your
local oscillator source 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 papers.

Getting Started 1-5
Table 1-2. Packaging for a 2/8 Module
Item Description HP Part Number Qty
1 Carton-outer 5180-8479 1
2 Carton-inner 9211-4781 1
3 Carton-sliders 5180-2369 1
4 Foam inserts 4208-0493 1
5 Foam pads 5180-8469 2

1-6 Getting Started
2
Module Veri cation Software
Module Veri cation Software is a program that is designed to automate module veri cation
tests and adjustment procedures. Included in this chapter is a step-by-step procedure to load
the software and get the veri cation tests or adjustment procedures underway. For more
detailed information, refer to the sections regarding individual menus.
This documentation supports Module Veri cation Software, Revision A.02.00 or greater.
Use this software with slave modules that have an HP 70900A/B local oscillator source as a
master. This software is controlled by a softkey-driven menu and user-interface screens. The
disks included with this module provide programs that test whether the module meets its
characteristics for system operation.
The HP 70000 Modular Spectrum Analyzer Installation and Veri cation Manual contains
con guration information for prede ned models of HP 70000 Series modular spectrum
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.

Module Veri cation Software 2-1
Computer Compatibility
Module Veri cation Software is written in HP BASIC 4.0 and can run on the following HP 9000
Series 200/300 controllers. Minimum RAM requirement is 2.5 megabytes.
HP 9816 HP 9920 (with HP 35721A monitor)
HP 9836 HP 9000 Series 300 controller
When using an HP 9000 Series 300 controller, a medium-resolution monitor and either an
HP 98203C or an HP 46020A keyboard are required. A high-resolution monitor will preclude
printing graphical test results. Due to the various keyboards supported, some minor text
dierences appear in the menus and softkeys displayed on-screen. (Refer to \Alternate Key
Labels" for an explanation of keyboard dierences.)

Alternate Key Labels
For simplicity in this document, we assume that you are using an HP 9000 Series 200 controller
keyboard. Refer to the list below if your keyboard key labels do not match the ones used in
text.

Keyboard Key Labels : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : Alternate Key Labels

4EXECUTE5 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 4RETURN5
4ENTER5 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 4RETURN5
: : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : press 4SYSTEM5, then RUN
NNNNNNNNNNN

4RUN5

: : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : press 4SYSTEM5, then CONTINUE
NNNNNNNNNNNNNNNNNNNNNNNNNN

4CONTINUE5

Computer Language Compatibility
Module Veri cation Software runs on HP BASIC 4.0, or later, with the BIN les in RAM that are
listed below. A procedure for loading HP BASIC is provided in \Installing Module Veri cation
Software".
CLOCK ERR HPIB MAT
CS80* GRAPH IO MS
DISKy GRAPHX KBD PDEVz

*Optional { supports Winchester disk drives.
yOptional { supports micro oppies and older Winchester disk drives.
zOptional { provides debugging features for program development.

In a shared resource management (SRM) environment, the following BIN les are also required:
DCOMM
SRM
Note If you have set up some RAM memory for speci c usage, be aware that this
program uses RAM memory Volume \:MEMORY, 0, 15". Move any information
stored at this Volume to another location before running Module Veri cation
Software.

2-2 Module 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.

Module Veri cation Software 2-3
Con guring the Hardware
1. Connect the HP 70000 Series modular spectrum analyzer system to the computer port
determined by the following criteria:
For computers with an HP 98624A HP-IB interface, connect your spectrum analyzer to the
port labeled HP-IB SELECT CODE 8. Check that the address switch on the HP 98624A
HP-IB interface board assembly matches the HP-IB controller device address. If needed,
refer to the HP 9000 Series 200/300 controller Peripheral Installation Guide, Volume 1.
For computers without an HP 98624A HP-IB interface, connect the HP 70000 Series
modular 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
port.
3. Use a 0.5 meter HP-IB cable (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.
Note Occasionally disk drives exhibit unpredictable behavior when sharing the
HP-IB with instruments. If you nd this occurring, connect the disk drive to a
separate HP-IB interface.

4. Set the external test equipment and the HP 70000 Series modular spectrum analyzer system
line switches to ON. Allow the equipment to warm up as speci ed for the veri cation tests
or adjustment procedures.
5. Turn the disk drive (if used) and computer ON.

2-4 Module Veri cation Software
Installing Module Veri cation Software
Use the following steps to get the program 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.
1. View the version number of the software program after loading the rst program disk.
Look in the right-hand side of the initial display. Speci c numbers vary, but the version
number looks like this: Rev. A.02.00
2. Locate the program part number printed on the disk labels.
3. Load HP BASIC 4.0 or later, with the appropriate binaries, into 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 single disk.

4. Assign the MSI (mass storage is) to the drive you will use as the default drive. As an
example, assigning the MSI to a disk drive looks like this: MSI ":,700,0"
5. Insert Executive Disk 1 into the assigned default drive. Type the following command line:
LOAD "MOD_VERF",1
6. Press 4EXECUTE5. The software version number appears in the screen that is next displayed.
7. Follow the on-screen prompts and load Executive Disk 2. Press 4CONTINUE5. Loading
Executive Disk 2 may require up to two minutes.
Note Be sure the Executive Disk 3 you load is the disk that belongs with the module
you wish to test.

8. Replace Executive Disk 2 with Executive Disk 3, then press PROCEED . If the date and time
NNNNNNNNNNNNNNNNNNNNNNN

prompt appears, enter the date and time in the speci ed format. (This message appears
only if date and time are not current.)
9. If you are using your module's software for the rst time, a message appears stating that
mass storage data is needed. Press PROCEED and follow the on-screen prompts to create a
NNNNNNNNNNNNNNNNNNNNNNN

mass storage data le. Once mass storage data is stored, this message will not reappear.
10. 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 module of your system, refer to \Error Messages" at the end of this
chapter to determine a course of action.
11. Load the Operating Disk as directed. The Operating Disk probably needs to remain in the
drive speci ed as the MSI default drive. Load the Driver Disks into the drive speci ed
on-screen.
12. Load all Driver Disks. Insert each Driver Disk and press PROCEED . This process may
NNNNNNNNNNNNNNNNNNNNNNN

require up to six minutes.
13. If you have not entered serial numbers for passive devices that require calibration data for
test purposes, on-screen prompts request the data now. Enter the data via the Calibration
Module Veri cation Software 2-5
Data screen. Press CREATE to access this screen. For a detailed explanation of entering
NNNNNNNNNNNNNNNNNNNN

calibration data, refer to \Edit Calibration Data" under \Menus" in this chapter. Enter
the serial number for each device speci 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.
Note In the future, you can access calibration data stored on Operating Disks, rather
than enter the data for passive devices of a given serial number each time you