Wiltron 54 A Series User manual

SERIES 54XXA
SCALAR MEASUREMENT SYSTEMS
MAINTENANCE MANUAL
P/N: 10410-00123
REVISION: A
PRINTED: AUGUST 1992
COPYRIGHT 1992 WILTRON CO.
490 JARVIS DRIVE ● MORGAN HILL, CA 95037-2809

WARRANTY
The WILTRON product(s) listed on the title page is (are) warranted against defects in
materials and workmanship for one year from the date of shipment, except for YIG-tuned
oscillators, which are warranted for two years.
WILTRON’s obligation covers repairing or replacing products which prove to be defective
during the warranty period. Buyers shall prepay transportation charges for equipment
returned to WILTRON for warranty repairs. Obligation is limited to the original purchaser.
WILTRON is not liable for consequential damages.
LIMITATION OF WARRANTY
The foregoing warranty does not apply to WILTRON connectors that have failed due to
normal wear. Also, the warranty does not apply to defects resulting from improper or
inadequate maintenance by the Buyer, unauthorized modification or misuse, or operation
outside of the environmental specifications of the product. No other warranty is expressed
or implied, and the remedies provided herein are the Buyer’s sole and exclusive remedies.

MANUAL CHANGES
MANUAL:
Title: Series 54XXA Scalar Measurement Systems Maintenance Manual
Part Number: 10410-00123
Rev. Ltr/Date: A / November 1992
CHANGE PACKET
Part Number: 10900-00106
INSTRUCTIONS
1. Make the manual changes listed below. These changes are listed in numerical order by page number.
2. The replacement pages provided in this change package are for technical changes and errata to the
manual. The black bar or bars in the replacement page margins show the area in which the changes were
made.
CHANGE 1, February 1993:
1. Page 2-4:
Replace with enclosed pages 2-3 and 2-4, Changed: February 1993.
2. Pages 2-5 and 2-6:
Replace with enclosed fold-out pages 2-5 and 2-6, Changed: February 1993.
3. Pages 6-24 and 6-25:
Replace with enclosed pages 6-23 through 6-26, Changed: February 1993.
4. Pages A-5 and A-6:
Replace with enclosed appendix pages A-5 and A-6, Changed: February 1993.
54XXA OM C-1

TABLE OF CONTENTS
Chapter 1 — General Service Information
This section provides a general description of series 54XXA Scalar Measurement Systems, system
serial numbers, and frequency ranges. It explains the level of maintenance covered in this manual
and provides preventative maintenance procedures. It also contains static-sensitive component han-
dling precautions and a list of recommended test equipment.
Chapter 2 — Replaceable Parts
This Chapter lists all replaceable subassemblies and components for all 54XXA models. It explains
the WILTRON exchange assembly program and provides parts ordering information.
Chapter 3 — Troubleshooting
This chapter provides information for troubleshooting 54XXA Scalar Measurement Systems. The
troubleshooting information and fault location tables contained in this chapter support fault isola-
tion down to a replaceable subassembly.
Chapter 4 — Functional Overview
This chapter provides descriptions of the functional operation of the major assemblies contained in
54XXA series Scalar Measurement Systems. The operation of all major circuit blocks is described
so that the reader may better understand the function of each major assembly as part of the over-
all operation of the 54XXA.
Chapter 5 — Removal and Replacement Procedures
This chapter describes how to gain access to the major 54XXA assemblies and parts for trou-
bleshooting or replacement.
Chapter 6 — Adjustments
This chapter provides adjustment procedures for all models of series 54XXA Scalar Measurement
Systems. These procedures are used after replacement or repair of one or more critical subassem-
blies, or as indicated by the Performance Verification Procedures (which are contained in Section V
of the Series 54XXA Scalar Measurement Systems Operation Manual).
Appendix A — RF Detector Diode Replacement Procedures
This appendix contains rf detector diode replacement procedures for 5400-71XXX and 560-7XXX se-
ries RF Detectors.
54XXA MM i

Appendix B — Fabrication of RF Detector Simulator
This appendix contains information for fabricating the T1492 RF Detector Simulator test aid. This
test aid is used in the calibration procedures contained in Chapter 6.
Appendix C — Fabrication of Dummy Thermistor Test Aids
This appendix contains information for fabricating the T38300 Dummy Down Converter Thermis-
tor and the T38301 Dummy Directional Coupler Thermistor test aids. These test aids are used in
the Temperature Compensation Adjustment Procedure for series 54XXA Scalar Measurement Sys-
tems contained in Chapter 6.
Table of Contents (Continued)
ii 54XXA MM

Table of Contents
1-1 SCOPE OF THE MANUAL . . . . . . . . . . . . . . . . . . . 1-3
1-2 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1-3 IDENTIFICATION NUMBER . . . . . . . . . . . . . . . . . . 1-3
1-4 DESCRIPTION OF 54XXA SYSTEM . . . . . . . . . . . . . . 1-3
1-5 LEVEL OF MAINTENANCE . . . . . . . . . . . . . . . . . . 1-4
Troubleshooting and Repair . . . . . . . . . . 1-4
Replaceable Subassemblies and Parts . . . . . 1-4
Adjustments . . . . . . . . . . . . . . . . . . . 1-4
Preventive Maintenance . . . . . . . . . . . . 1-5
1-6 RELATED MANUALS . . . . . . . . . . . . . . . . . . . . . . 1-5
1-7 PREVENTIVE MAINTENANCE . . . . . . . . . . . . . . . . 1-5
1-8 STATIC SENSITIVE COMPONENT HANDLING
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1-9 RECOMMENDED TEST EQUIPMENT . . . . . . . . . . . . 1-6
Chapter 1
General Service Information

Figure 1-1. Model 5417A Scalar Measurement System with Detector and SWR Autotester (and Test Device)

Chapter 1
General Service
Information
1-1 SCOPE OF THE MANUAL This manual provides general service and preventative maintenance in-
formation, replaceable parts information, circuit descriptions, trou-
bleshooting procedures, and adjustment procedures for WILTRON se-
ries 54XXA Scalar Measurement Systems (SMS’s). Throughout this
manual, these systems are referred to as “54XXA”.
1-2 INTRODUCTION This chapter of the manual provides a general description of series
54XXA Scalar Measurement Systems, system serial numbers, fre-
quency ranges, and related manuals. Also included is information
about the level of maintenance covered in this manual, preventative
maintenance procedures, and static-sensitive component handling pre-
cautions. A list of recommended test equipment is also provided.
1-3 IDENTIFICATION NUMBER All WILTRON instruments are assigned a six-digit ID number, such as
“101001.” This number appears on a decal affixed to the rear panel.
Please use this identification number during any correspondence with WIL-
TRON Customer Service about this instrument.
1-4 DESCRIPTION OF 54XXA
SYSTEM
Series 54XXA systems are microprocessor controlled scalar measure-
ment systems. These systems are used to make scalar (magnitude)
transmission, reflection, and absolute power measurements. Atypical
model is shown in Figure 1-1 (facing page). All measurement functions
are selectable by using the front panel keys and controls in conjunction
with the display screen menus. Refer to the 54XXA Scalar Measure-
ment Systems Operation Manual for information about operation of
these systems. Refer also to that manual for information about system op-
tions, SWR Autotesters, detectors, and other accessories used with series
54XXASystems.
54XXA MM 1-3

The measurement frequency range of the 54XXA is determined by:
The range of the internal signal source of the particular model.
The external SWR Autotester and/or detector used with the
54XXA.
The table at left lists the frequency ranges of all 54XXA models. For in-
formation about the frequency ranges and characteristics of WILTRON
SWR Autotesters and RF detectors normally used with series 54XXA
models, refer to the 54XXA Scalar Measurement Systems Operation
Manual.
Option 3 to the 54XXA provides remote operation using the IEEE–488
General Purpose Interface Bus (GPIB). This option allows all 54XXA
front panel control functions (except POWER on/off) to be controlled re-
motely from an external computer/controller using GPIB commands.
Refer to the 54XXA Scalar Measurement Systems Operation Manual
for information about other options and accessories available for
54XXA models.
1-5 LEVEL OF MAINTENANCE Maintenance and troubleshooting of the 54XXA consists of:
Troubleshooting the 54XXA to a replaceable subassembly
Repair by replacing the failed subassembly
Adjustments
Preventive maintenance
Troubleshoot-
ing and Re-
pair
Most faults involving the 54XXA are field repairable
by replacing the subassembly that is at fault. The
procedures contained in this manual provide trou-
bleshooting to this level. Refer to Chapter 3, Trou-
bleshooting.
This manual also contains procedures for replacing
defective detector diodes for Series 560-7XXX RF De-
tectors and for 5400-71B75 RF Detectors. These pro-
cedures are contained in Appendix A.
Replaceable
Subassemblies
and Parts
Chapter 2 provides replaceable parts information for
all 54XXA models. It lists all field-replaceable subas-
semblies and parts. It also identifies all subasem-
blies that are presently covered by the WILTRON
exchange assembly program.
Adjustments Procedures for adjustment of the 54XXA after repair
or replacement of one or more subassemblies is de-
scribed in Chapter 6, Adjustments.
Model Frequency Range (GHz)
5407A 0.001 to 1.0
5409A 0.001 to 2.0
5411A 0.001 to 3.0
5417A 0.01 to 8.6
5419A 2.0 to 8.6
5428A 8.0 to 12.4
5431A 10.0 to 16.0
5430A 12.4 to 20.0
5436A 17.0 to 26.5
5437A 2.0 to 20.0
5447A 0.01 to 20.0
Table 1-1. 54XXA Model Frequency
Ranges
DESCRIPTION OF 54XXA GENERAL
SYSTEM SERVICE INFORMATION
1-4 54XXA MM

Preventive
Maintenance Fan filter replacement, described in paragraph 1-7.
1-6 RELATED MANUALS The 54XXA Scalar Measurement Systems Operation Manual (10410-
00118) describes the front panel operation for all 54XXA models. It also
contains general information, specifications, and Performance Verifica-
tion procedures for all models.
Operation of the 54XXA remotely via the IEEE-488 General Purpose
Interface Bus (GPIB) is described in the 54XXA Series Scalar Measure-
ment Systems GPIB User’s Guide (10410-00119). This user’s guide is
located at the rear of the 54XXA Scalar Measurement Systems Opera-
tion Manual.
1-7 PREVENTIVE
MAINTENANCE
The 54XXA must always receive adequate ventilation. Check and clean
the rear panel fan filter periodically. Clean this filter more frequently
in dusty environments. Proceed as follows:
Step 1 Remove the four capnuts holding the filter in place (Fig-
ure 1-2).
Step 2 Remove the filter.
Step 3 Clean the filter by flushing with compressed air.
Step 4 Replace the filter by reversing the previous steps.
Step 5 Ensure that the cap nuts are securely tightened.
GENERAL SERVICE LEVEL OF
INFORMATION MAINTENANCE
CAP NUTS (4)
FAN FILTER
FILTER GUARD
Figure 1-2. Fan Filter Removal/Replacement
54XXA MM 1-5

1-8 STATIC SENSITIVE
COMPONENT HANDLING
PRECAUTIONS
The 54XXA contains components that can be damaged by static electric-
ity. Figure 1-3 illustrates the precautions that should be followed when
handling static-sensitive subassemblies and components. If followed,
these precautions will minimize the possibilities of static-shock dam-
age to these items.
NOTE
Use of a grounded wrist strap when removing and/or re-
placing subassemblies or parts is strongly recom-
mended.
1-9 RECOMMENDED TEST
EQUIPMENT
The recommended test equipment for the adjustment and troubleshoot-
ing procedures presented in this manual are listed in Table 1-2.
PREVENTIVE GENERAL SERVICE
MAINTENANCE INFORMATION
1-6 54XXA MM

1. Do not touch exposed contacts on
any static sensitive component. 2. Do not slide static sensitive component across any surface. 3. Do not handle static sensitive components in areas where the floor
or work surface covering is capable
of generating a static charge.
4. Wear a static-discharge wristband
when working with static sensitive
components.
5. Label all static sensitive devices. 6. Keep component leads shorted
together whenever possible.
7. Handle PCBs only by their edges.
Do not handle by the edge
connectors.
8. Lift & handle solid state devices by
their bodies – never by their leads. 9. Transport and store PCBs and other static sensitive devices in static-
shielded containers.
10. ADDITIONAL PRECAUTIONS:
•Keep workspaces clean and free of any objects capable of holding or storing a static charge.
•Connect soldering tools to an earth ground.
•Use only special anti-static suction or wick-type desoldering tools.
Figure 1-3. Static Sensitive Component Handling Procedures
GENERAL STATIC HANDLING
INFORMATION PROCEDURES
54XXA MM 1-7

INSTRUMENT CRITICAL
SPECIFICATION RECOMMENDED MANUFACTURER/MODEL USE#
Adaptor Cable Connection to 54XXA Channel Inputs WILTRON Model 560-10BX P, A
Detector Simulator Simulates WILTRON RF Detectors WILTRON T1492 (see Appendix B) A
Computer/Controller Personal computer, equipped with
National PCIIAGPIB interface card Any IBM compatible (or WILTRON Model 85, or HP Model 200) P, T
RF Detector 1. 50Ωinput, 1.0 to 3000 MHz*
2. 75Ωinput, 1.0 to 3000 MHz**
3. 0.010 to 18.5 GHz
4. 0.010 to 26.5 GHz‡
WILTRON Model 5400-71N50
WILTRON Model 5400-71N75
WILTRON Model 560-7N50
WILTRON Model 560-7K50
P, A
Impedance Adapter Converts from 50Ωto 75ΩWILTRON Model 12N75B P, A, T
Digital Multimeter Resolution: 4-1/2 digits (to 20V )
DC Accuracy: 0.002% + 2 counts
DC Input Impedance: 10 MΩ
AC Accuracy: 0.07% +100 cts (≤20 kHz)
AC Input Impedance: 1 MΩ
John Fluke Mfg Co. Inc.,
Model 8840A, with
Option 8840A-09, True RMS AC
A, T
Frequency Counter
Frequency: 0.1 to 26.5 GHz
Input Impedance : 50ΩEIP Microwave, Inc., Model 578A P, A
Modulation Meter
Bandwidth: 15 kHz
Accuracy: ±3% of FSD at 1 kHz Marconi Instruments Inc., Model 2304 P, A
Oscilloscope
Bandwidth : DC to 100 MHz
Sensitivity: 2 mV
Horiz. Sensitivity: 50 ns/division
Tektronix, Inc.
Model 2445 A, T
Power Meter, with:
Power Range: +10 to –55 dBm
Other: 50 MHz Calibrated Output Anritsu Corp., Model ML4803A P, T
Power Sensor*
50Ωinput Frequency Range: 1.0 MHz to 2.0 GHz
Power Range: –30 to +20 dBm Anritsu Corp., Model MA4601A
Power Sensor**
75Ωinput Frequency Range: 1.0 MHz to 5.5 GHz Power Range: –30 to +20 dBm Anritsu Corp., Model MA4603A with J0365 Conversion Connector
Power Sensor Frequency Range: 0.10 to 18.0 GHz
Power Range: –30 to +20 dBm
Power Range: –70 to –20 dBm Anritsu Corp., Model MA4701A Anritsu Corp., Model MA4702A
Power Sensor#
Atten, Calibration
Frequency Range: 0.05 to 26.5 GHz
Power Range: –30 to +20 dBm
Power Range: –70 to –20 dBm
Atten: 30 dB, used with MA4702A/04A
Anritsu Corp., Model MA4703A
Anritsu Corp., Model MA4704A
Anritsu Corp., Model MP47A
Printer Parallel Interface operation WILTRON, Model 2225C Ink Jet
Printer, or equivalent P, T
SpectrumAnalyzer
Frequency Range: 0.01 to 26.5 GHz
Power Range: +10 dB to –60 dBm
Anritsu Corp., Model MS2802 P, T
Step Attenuator
Attenuation Range: 60 dB, 10 dB/step
0.000 to 18.0 GHz
0.000 to 26.5 GHz Hewlett-Packard, Model 8495B Hewlett-Packard, Model 8495D P, A
Voltage Standard Range: 0 mV to –1.462V
Accuracy: 0.002% of set value. John Fluke Mfg Co. Inc., Model 335D P, A, T
∗Required for models 5407A, 5409A, and 5411A with 50Ωoutput.
∗∗ Required for models 5407A, 5409A, and 5411A with 75Ωoutput, only.
#Required for model 5436A, only.
# Use Code:
A Adjustment
P Performance verification procedures
T Troubleshooting
Table 1-2. Recommended Test Equipment
RECOMMENDED GENERAL SERVICE
TEST EQUIPMENT INFORMATION
1-8 54XXA MM

Table of Contents
2-1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2-2 EXCHANGE ASSEMBLY PROGRAM . . . . . . . . . . . . . 2-3
2-3 REPLACEABLE SUBASSEMBLIES AND PARTS . . . . . . . 2-3
2-4 PARTS ORDERING INFORMATION . . . . . . . . . . . . . . 2-3
Chapter 2
Replaceable Parts

Chapter 2
Replaceable Parts
2-1 INTRODUCTION This chapter provides replaceable parts information for all 54XXA mod-
els. The location of the major replaceable assemblies is shown in Fig-
ures 2-1 and 2-2 (pages 2-7 and 2-8).
2-2 EXCHANGE ASSEMBLY
PROGRAM
WILTRON maintains a module exchange program for selected subas-
semblies of all 54XXA models. If a malfunction occurs in one of these
subassemblies, the defective item can be exchanged. Upon receiving
your request, WILTRON will ship the exchange subassembly to you,
typically within 24 hours. You then have 30 days in which to return
the defective item. All exchange subassemblies or RF assemblies are
warranted for 90 days from the date of shipment, or for the balance of
the original equipment warranty, whichever is longer.
Please have the exact model number and serial number of your unit
available when requesting this service, as the information about your
unit is filed according to the instrument’s model and serial number.
For more information about the program, contact your local sales repre-
sentative or call WILTRON Customer Service direct (paragraph 2-4).
2-3 REPLACEABLE
SUBASSEMBLIES AND
PARTS
Table 2-2 (page 2-5) lists the major replaceable subassemblies and
parts for the 54XXA that are presently covered by the WILTRON
exchange assembly program. Table 2-3 and Table 2-4 (page 2-6) list
model-dependent and common replaceable parts for the 54XXA that
are not presently on the exchange assembly program.
2-4 PARTS ORDERING
INFORMATION
All parts listed in Tables 2-2 through 2-4 may be ordered from your lo-
cal WILTRON service center (Table 2-1). Or, they may be ordered di-
rectly from the factory at the address shown below.
WILTRON Company
ATTN: Customer Service
490 Jarvis Drive
Morgan Hill, CA 95037-2809
Telephone: [phone]
TWX: 285227 WILTRON MH
FAX: [phone]
54XXA MM 2-3

UNITED STATES
WILTRON COMPANY
490 Jarvis Drive
Morgan Hill, CA 95037-2809
Telephone: [phone]
Telex: 285227 WILTRON MH
FAX: [phone]
ANRITSU WILTRON SALES
COMPANY
685 Jarvis Drive
Morgan Hill, CA 95037-2809
Telephone: [phone]
FAX: [phone]
ANRITSU WILTRON SALES
COMPANY
15 Thornton Road
Oakland, NJ 07436
Telephone: [phone]
FAX: [phone]
AUSTRALIA
WILTRON PTY. LTD..
1/410 Church Street
North Parramatta
NSW 2151 Australia
Telephone: [phone]
Fax: [phone]
BRAZIL
ANRITSU ELECTRONICA S.A.
Av. Passos, 91-Sobrelojas
203/205-Centro
20.051 Rio de Janeiro-RJ
Telephone: [phone]
Telex: 11 33532 ANBR BR
Fax: [phone]
CANADA
WILTRON INSTRUMENTS LTD.
215 Stafford Road, Unit 102
Nepean, Ontario K2H 9C1
Telephone: [phone]
FAX: [phone]
CHINA
WILTRON BEIJING SERVICE
CENTER
416 W Beijing Fourtune Bldg
5 Dong San Huan Bei Lu
Chao Yang Qu, Beijing, China
Telephone: [phone]
FAX: [phone]
[phone]
FRANCE
WILTRON S.A
9 Avenue du Quebec
Zone de Courtaboeuf
91951 Les Ulis Cedex
Telephone: [phone]
FAX: [phone]
INDIA
ACCUTROL SYSTEMS PRIVATE
LIMITED
Nirmal, 15th Floor
Narimen Point
Bombay 400 021
Telephone: [phone]
: 011-91-22-204-7187
FAX: [phone]
ISRAEL
TECH-CENT, LTD
7A, Pinhas Rosen Street
Tel-Aviv 69356
Telephone: [phone]
FAX: [phone]
ITALY
WILTRON Sp.A
Roma Office
Via E. Vittorini, 129
00144 Roma EUR
Telephone: [phone]
FAX: [phone]
JAPAN
ANRITSU CORPORATION
1800 Onna Atsugi-shi
Kanagawa-Prf. 243 Japan
Telephone: [phone]
FAX: [phone]
KOREA
WILTRON CORPORATION
1201 Sinsong Bldg. 12F,
25-4 Yeoeuido-Dong
Youngdeungpo-ku, Seoul
Telephone: [phone]
FAX: [phone]
SWEDEN
WILTRON AB
Box 247
S-127 25 Skarholmen
Telephone: [phone]
Telex: (854) 8135089
FAX: [phone]
TAIWAN
WILTRON CO., LTD.
8F, No. 96, Section 3
Chien Kuo N. Road
Taipei, Taiwan, R.O.C.
Telephone: [phone]
FAX: [phone]
UNITED KINGDOM
ANRITSU EUROPE LTD.
Capability Green
Luton, Bedfordshire
LU1 3LU, England
Telephone: [phone]
Telex: (851) 826750
FAX: [phone]
WEST GERMANY
WILTRON GmbH
Rudolf Diesel Str 17
8031 Gilching
Telephone: [phone]
Telex: (841) 528523
FAX: [phone]
Table 2-1. WILTRON Service Centers
WILTRON REPLACEABLE
SERVICE CENTERS PARTS
2-4 54XXA MM
Changed: February 1993

Reference
Designator 54XXA Option Assembly/Part 5407A 5409A 5411A 5417A 5419A 5428A 5430A 5431A 5436A 5437A 5447A
A1 Front Panel PCB D35051-3 D35051-3 D35051-3 D35051-3 D35051-3 D35051-3 D35051-3 D35051-3 D35051-3 D35051-3 D35051-3
A2 Front Panel Interface PCB D35052-3 D35052-3 D35052-3 D35052-3 D35052-3 D35052-3 D35052-3 D35052-3 D35052-3 D35052-3 D35052-3
A3 Signal Channel PCB (std) D35345-3 D35345-3 D35345-3 D35345-3 D35345-3 D35345-3 D35345-3 D35345-3 D35345-3 D35345-3 D35345-3
Option 5 Signal Channel PCB (w/R input) D35053-3 D35053-3 D35053-3 D35053-3 D35053-3 D35053-3 D35053-3 D35053-3 D35053-3 D35053-3 D35053-3
A5 YIG Driver/Signal Channel Intf. PCB D35358-10 D35358-10 D35358-10 D35358-4 D35358-4 D35358-5 D35358-6 D35358-7 D35358-8 D35358-9 D35358-9
A6 ALC/Frequency Instruction PCB ND37738-1 ND37738-2 ND37738-3 ND37738-4 ND37738-4 ND37738-4 ND37738-4 ND37738-4 ND37738-4 ND37738-4 ND37738-4
A7 Central Processor/GPIB PCB w/o GPIB D35357-3 D35357-3 D35357-3 D35357-3 D35357-3 D35357-3 D35357-3 D35357-3 D35357-3 D35357-3 D35357-3
Option 3 Central Processor/GPIB PCB w GPIB D35357-4 D35357-4 D35357-4 D35357-4 D35357-4 D35357-4 D35357-4 D35357-4 D35357-4 D35357-4 D35357-4
A8 Graphics Processor PCB D35066-3 D35066-3 D35066-3 D35066-3 D35066-3 D35066-3 D35066-3 D35066-3 D35066-3 D35066-3 D35066-3
A10 Menu PCB Assembly C35060-3 C35060-3 C35060-3 C35060-3 C35060-3 C35060-3 C35060-3 C35060-3 C35060-3 C35060-3 C35060-3
A11 500 MHz Sample/Marker Assembly C35329 C35329 C35329 C35329 C35329 C35329 C35398 C35398
A12/A13 500 MHz VCO/PA Assembly C35192 C35192 C35192 C35192 C35192 C35192 C35396 C35396
A14 25 MHz Marker Assembly C35194-11 C35194-11 C35194-7 C35194-7 C35194-7 C35194-7 C35397 C35397
A17 RF Deck Distribution Panel Assembly (PCB) C35287-3 C35287-3 C35287-3 C35287-3 C35287-3 C35287-3
A18 Switched Filter Driver Assembly (PCB) C35286-3 C35286-3
A19 Multiband Controller Assembly D35430-3 D35430-3
Power Supply Assembly * D35370 D35370 D35370 D35370 D35370 D35370 D35370 D35370 D35370 D35370 D35370
CRT Monitor Assembly D35047 D35047 D35047 D35047 D35047 D35047 D35047 D35047 D35047 D35047 D35047
Option 2 Step Attenuator Assembly, 70 dB, 3 GHz D24335 D24335 D24335
Option 2A Step Attenuator Assembly, 70 dB, 20 GHz 4412K 4412K 4412K 4412K 4412K 4412K 4412K
Option 2B Step Attenuator Assembly, 70 dB, 26.5 GHz 4512K
Output Coupler D21450 D21450 D21450 D21450 D21450 D21452 D21450 D21450
Down Converter D25472 D25472 D25472 D25471 D25471
Modulator Assembly D22870 D22870 D22880 D22900 D22890 D22910
Switched Filter Assembly ND39316 ND39316 D22040 D22040
3 GHz Marker Assembly D25432 D25432 D25432 D25432 D25432
2 GHz Marker Assembly C30954-1
YIG Oscillator C22550 C22550 C22550 C24436∗∗ C24436∗∗ C11282 C14770-1 C22560 C29963 C21620 C21620
∗For instruments with serial numbers 103014 and below, use Power Supply Assembly ND37737.
∗∗ For Models 5417A and 5419A with 8.4 GHz upper band-edge, use YIG Oscillator C22570.
Table 2-2. Exchange Assembly Program 54XXA Subassemblies and Parts
REPLACEABLE PARTS
PARTS LISTS
54XXA MM 2-5
Changed: February 1993

Assembly/Part 5407A 5409A 5411A 5417A 5419A 5428A 5430A 5431A 5436A 5437A 5447A
RF Output Connector, 50 Ω, Type N B35283 B35283 B35283 C18650-1 C18650-1 C18650-1 C18650-1 C18650-1 C18650-1 C18650-1
RF Output Connector, 50 Ω, Type K C18640-1
RF Output Conector, 75 Ω, Type N ∗B35284 B35284 B35284
Front Panel Overlay D35026-10 D35026-11 D35026-12 D35026-13 D35026-14 D35026-15 D35026-16 D35026-17 D35026-18 D35026-22 D35026-20
D35026-24#D35026-26#
Front Panel Overlay (for units w/Option 5 ∗∗)D35026-1 D35026-2 D35026-3 D35026-4 D35026-5 D35026-6 D35026-7 D35026-8 D35026-9 D35026-21 D35026-19
D35026-23#D35026-25#
∗54XXA Option 4 (5407A, 5409A and 5411A, only)
∗∗ Third front panel input
# For units with 8.6 GHz upper band edge.
Table 2-3. Model Related 54XXA Replaceable Subassemblies and Parts
Assembly/Part Part
Number Assembly/Part Part Number
Cover, Top D30125 Fuse, 4A, 3AG Slow Blow (115 Vac Operation) 631-16
Cover, Bottom D30126 Fuse, 2A, Time Lag, 20 mm (230 Vac Operation) 631-67
Cover, Side D30127 Fuse Holder, 3AG Type 533-221
Cover, Side (modified, with holes) C30051 Fuse Holder, 5 x 20 mm Type 533-240
Connector, Front Panel Input 557-152 Knob, Data Entry 710-62
Fan Assembly, Rear Panel C35215 Line Module Assembly, Rear Panel B35375
Fan Filter 783-377
Finger Guard, Fan 790-251 Tilt Bail C13654
Dome Nut, (for Finger Guard) 900-579
Foot, Rear D13656
Foot, Bottom D13655
Table 2-4. Common 54XXA Replaceable Subassemblies and Parts
PARTS REPLACEABLE
LISTS PARTS
2-6 54XXA MM
Changed: February 1993

DANGER
HIGH VOLTAGE
A1
FRONT PANEL
PCB
A2
FRONT PANEL
INTERFACE
PCB
RF DECK
ASSEMBLY
CRT
MONITOR
ASSEMBLY
POWER
SUPPLY
ASSEMBLY
LINE VOLTAGE
SELECTOR
MODULE
REAR PANEL
FAN ASSEMBLY
A5
YIG DRIVER/
SIGNAL
CHANNEL
INTERFACE
PCB
A6
ALC/
FREQUENCY
INSTRUCTION
PCB
A7
CENTRAL
PROCESSOR/
GPIB PCB
A8
GRAPHICS
PROCESSOR
PCB
REAR PANEL
CONNECTORS
Figure 2-1. 54XXA Major Assemblies Location Diagram (Top View)
REPLACEABLE MAJOR ASSEMBLIES
PARTS LOCATION DIAGRAM
54XXA MM 2-7

A10
MENU PCB
ASSEMBLY
CRT MONITOR
ASSEMBLY
POWER SUPPLY
ASSEMBLY
A3
SIGNAL
CHANNEL
PCB
A4
MOTHERBOARD
PCB
Figure 2-2. 54XXA Major Assemblies Location Diagram (Bottom View)
MAJOR ASSEMBLIES REPLACEABLE
LOCATION DIAGRAM PARTS
2-8 54XXA MM