About this Manual
HP Part No -90218 Supersedes
Fia Hewlett
Page
Warranty
Certification
Regulatory Information
Assistance
Safety Notes
Prevent electrical shock, do not remove covers
General Safety Considerations
How to Use This Guide
Documentation Outline
This guide uses the following conventions
Contents
Contents-2
Contents-3
Contents-4
Contents-5
Contents-6
Contents-7
Controller Section
Contents-9
Contents-10
Figures
Contents-12
Contents-13
Contents-14
Tables
Contents-15
PLL
Serial Numbers and Repair Information
Serial Number Label Example
General Information l-1
Table l- 1. Instrument Variations
Instrument Variations
General Information
A21 Ocxo
General Information l-3
HP 85629B Test and Adjustment Module
Service Kit
Table l-2. Service Kit Contents
Electrostatic Discharge
General Information l-5
Reducing Potential for ESD Damage
Static-Safe Accessories
Returning Instruments for Service
Service Tag
Static-Safe Accessories
Other Packaging
9211-6969 Outer Carton 9220-5073 Pads 9220-5072 Top Tray
General Information l-9
Recommended Test Equipment
Instrument Sources
Table l-4. Recommended Test Equipment
General Information l-l
Recommended Test Equipment
Instrument Critical Specifications Recommended Use
Instrument Accessories
PAV
PAM
Sales and Service Offices
US Field Operations
Hewlett-Packard Sales and Service Offices
Introduction
Adjustment Procedures
Which Adjustments Should Be Performed?
Safety Considerations
Adjustable and Factory-Selected Components
Test Equipment
Adjustment Tools
Instrument Service Position
8710-0033
A5 if
Related Adjustments
A10 Rythm
Adjustable Components
FM Span
HV ADJ
Smpl Match
VCO Range
Factory Selected Components
Adjustment Indicator
Using the TAM
YTO
TAM Adjustments
Required Test Equipment for TAM
Adjustment Procedures 2-l
Front End Cal adjustment
Assembly Adjusted
High Voltage Power Supply Adjustment
High Voltage Power Supply Adjustment
Related Performance Test
Equipment
Procedure
Display Adjustment
Display Adjustment
Preliminary Adjustments
Cutoff Adjustment
Deflection Adjustments
CRT Adjust Pattern Adjustment Procedures
Intensity Adjustments
A2 Display Adjustment Locations
Fast Zero Span Adjustments
Press SAVEI, Save State ,and State
If Bandpass Adjustment
If Bandpass Adjustment
TAM Connector Pin Locations
LC Bandpass Adjustments
Factory-Selected LC Filter Capacitors
Xtal Bandpass Adjustments
Xtal Factory-Selected Capacitor Selection
Factory-Selected Xtal Filter Capacitors
A5T200 Xtal CTR
A5T202 Xtal CTR
If Bandpass Adjustment 10. Capacitor Part Numbers
Related Performance Tests
If Amplitude Adjustments
If Amplitude Adjustment Locations
If Amplitude Adjustments
A5 Reference Attenuator Adjustment
A5 Adjustment Verification
DC Log Adjustment Setup Adjustment Procedures
DC Log Amplifier Adjustments
DC Log Amplifier Adjustments
A4 Limiter Phase Adjustment
Log Amplifier Adjustments
A4 Linear Fidelity Adjustment
Press -,a, if AlI on OFF OFF, AD3 Curr if State
A4 LOG Fidelity Adjustment
11. Sampler Adjustment Setup
Sampling Oscillator Adjustment
Sampling Oscillator Adjustment
Sampler Match Adjustment
Sampling Oscillator Adjustment
Sampling Oscillator Adjustment 1. Sampling Adjustments
YTO Adjustment
YTO Adjustment
07SAVE Save STATE, State RECALL, Recall STATE, State
YTO Main Coil Adjustments
14. YTO Adjustment Locations
YTO FM Coil Adjustments
15. First LO Distribution Amplifier Adjustment Setup
LO Distribution Amplifier Adjustment
18. TAM Connector Pin Locations
LO Distribution Amplifier Adjustment
DAC value for 4.60 GHz =
Frequency Response Adjustment
Automated Procedure Available
Frequency Response Adjustment
17. Frequency Response Adjustment Setup
MHz RF gain DAC value
Frequency‘Response Adjustment
Calibrator Amplitude Adjustment
Calibrator Amplitude Adjustment
MHz Reference Adjustment-OCXO Non-Option
19 MHz Reference Adjustment Setup and Adjustment Location
MHz Reference Adjustment-OCXO Non-Option
OFF
MHz Reference Adjustment-TCXO Option
MHz Reference Adjustment-TCXO Option
Procedure
Demodulator Adjustment
Demodulator Adjustment
SPAN, Zero Span
22. Demodulator Adjustment Locations Adjustment Procedures
23. External Mixer Bias Adjustment Setup
External Mixer Bias Adjustment Non-Option
External Mixer Amplitude Adjustment Non-Option
External Mixer Amplitude Adjustment Non-Option
Supplied with HP 8481D
EXT MXR REF CAL
25. Rythm Adjustment Setup
YIG-Tuned Filter/Mixer Rythm Adjustment
YIG-Tuned Filter/Mixer Rythm Adjustment
Save Presel PK
MHz PLL Adjustment
MHz PLL Adjustment
27 MHz PLL Adjustment Location
MHz PLL Adjustment
MHz Reference Adjustment
Frequency Response Adjustment Software 3-l
Frequency Response Adjustment Software
Getting Started
Frequency Response Adjustment Software
Spectrum Analyzers
Controller Computer
Warmup Time
Test Equipment Warmup Spectrum Analyzer Warmup
Required Test Equipment Summary
Adjustment Setups
Computer Controller Setup
Equipment Connections
HP-IB Cables
Using Frequency Response Adjustment Software
Loading the Program
Program Operation
Conditions Menu
Power Sensors
Test Record Header Information
System Mass Storage File Location
Storing and Loading the Conditions File
Setting HP-IB Addresses
Exiting Frequency Response Adjustment
Getting to the Adjust Menu
Verifying the HP-IB
Querying the Spectrum Analyzer Serial Number
Sensor Utilities Menu
Adding a Power Sensor Data File
Adjust Menu
Calibrate Power Sensor
Single Test
List Equipment
List Files
Frequency Response Adjustment Menu Softkeys
Single Test Cal Sensor List Equip Cond Menu
Assemblies Adjusted
APC 3.5 Cable 0 E’
Error Messages Beginning with Alphabetic Characters
Frequency Response Adjustment Error Messages
File filename not found
Power meter reads value dBm
Insufficient equip. to do test test number test name
No HP-IB address listed for DUT
Error Messages Beginning with Numeric Characters
Error Messages Beginning with Variables
Assembly Replacement
Assembly Replacement
Access to Internal Assemblies
Required Tools
Cable Color Code
Removal/Replacement
Procedure I. Spectrum Analyzer Cover
Procedure 2. Al Front Frame/Al8 CRT
Procedure 2. Al Front Frame/Al8 CRT
Removal
Procedure 2. Al Front Frame/Al8 CRT
Instrument
Discharging High Voltage on the CRT Assembly Replacement
A9, A18, and Line-Switch Assembly Mounting Screws
Front frame Mounting Screws
Installing the CRT and front frame Assemblies
Replacement
Placing the CRT into the Front Frame
Assembly Replacement 4-l
Procedure 2. Al Front Frame/Al8 CRT
Procedure 3. AlAl Keyboard/Front Panel Keys
Procedure 3. Al Al Keyboard/Front Panel Keys
Procedure 4. AlA RPG
Procedure 5. A2, A3, A4, and A5 Assemblies
Procedure 5. A2, A3, A4, and A5 Assemblies
Assembly Replacement 4
A2, A3, A4, and A5 Assembly Removal
4P3
Assembly Cables 2 Assembly Replacement
Coaxial Cable Clip
Procedure 5. A2, A3, A4, and AS Assemblies
10. HP-IB and AlAl Wl Cable Placement Assembly Replacement
Procedure 6. A6 Power Supply Assembly
Procedure 6. A6 Power Supply Assembly
Replacement
1. A6 Power Supply Connections Assembly Replacement
12. Power Supply Cover Assembly Replacement
Procedure 7. A6Al High Voltage Assembly
Procedure 7. A6Al High Voltage Assembly
13. Al6 Fast ADC and Al7 CRT Driver Mounting Screws
Procedure 7. A6Al High Voltage Assembly
Procedure 8. A7 through Al3 Assemblies
14. HP 6562E Assembly Locations
Procedure 6. A7 through Al3 Assemblies
A7 First LO Distribution Amplifier
Assembly Replacement 4-3
A8 Low Band Mixer
A8 Low Band Mixer
A9 Input Attenuator
A9 Input Attenuator
16. A10 Mounting Screws
A10 YIG-Tuned Filter/Mixer Rythm
All YTO
All YTO
Al3 Second Converter
Procedure 9. Al4 and A15 Assemblies
Procedure 9. Al4 and Al5 Assemblies
Procedure 9. Al4 and Al5 Assemblies
19. Al4 and Al5 Assembly Cables Assembly Replacement
20. Al6 and Al7 Mounting Screws Assembly Replacement
Procedure 10. Al6 Fast ADC and Al7 CRT Driver
21. Al6 Cable Routing Assembly Replacement
Procedure 10. Al6 Fast ADC and Al7 CRT Driver
Procedure 11. Bl Fan
Procedure 12. ET1 Battery
Procedure 12. BTI Battery
Procedure 13. Rear Frame/Rear Dress Panel
22. Main Deck Screws
Procedure 13. Rear Frame/Rear Dress Panel
W24, coax 5 W23, coax
23. A6 Power Supply Cover Assembly Replacement
Personnel and damage to the instrument
Procedure 14. W3 Line Switch Cable
24. W3 Dress and Connection to A6 Power Supply
Procedure 14. W3 Line Switch Cable
Screw Quantity
Standoff
26. W3 Cable Connector
Replacement Using Contact Removal Tool, HP part number
Replacement without Contact Removal Tool
27. Side Frame Mounting Screws
Procedure 15. Eerom A2U500
Procedure 15. Eerom A2U500
28. A21 Ocxo Mounting Screws Assembly Replacement
Procedure 16. A21 Ocxo
Procedure 16. A21 Ocxo
Ordering Information
Direct Mail-Order System
Replaceable Parts 5-l
Firmware-Dependent Part Numbers
Parts List Format
Direct Phone-Order System
Replaceable Parts
Reference Designations, Abbreviations and Multipliers
Reference Designations, Abbreviations, and Multipliers 2
Reference Designations, Abbreviations, and Multipliers 3
Reference Designations, Abbreviations, and Multipliers 4
Manufacturers Code List
Qty
Front Frame Assembly
Front Handle ASS’Y Mount Flange
SLIDE-CHAS 25-IN-LG 21.84-IN-TRVL
Cable Assembly Probe POWER/LED
Cable Assembly Ribbon
Controller Assembly
Interface Assembly
HP-IB Assembly
CRT Driver Assembly CRT Assembly
Battery 3.0 V 1.2 A-HR Lithium
Not Assigned Line Filter Assembly
If 1 Bottom
Cable Assembly Line Switch
Power CABLE, Ribbon
Cable ASSEMBLY, Speaker
Cable ASSEMBLY, A7/A8 Drive
Cable ASSEMBLY, Coax 97, LO Sweep
Cable ASSEMBLY, A10 Rythm Drive
Cable ASSEMBLY, Coax
Cable ASSEMBLY, Coax 6, 0 Span Video
Cable ASSEMBLY, SEMI-RIGID, 1ST Mixer
Cable ASSEMBLY, SEMI-RIGID, 1ST LO
Cable ASSEMBLY, Coax 89, CAL OUT
Cable ASSEMBLY, SEMI-RIGID, RF Input
Parts Identification, Assembly Mounting
Parts List, Cover Assembly
SPACER, CRT TUBE, CRT
Parts List, Main Chassis
Parts List, RF Section
Parts List, Front Frame
Probe Power Jack
00000
Rubber Keypad Includes Keycaps
SCREW-MACHINE Assembly M3 X 0.5 12MM-LG
LED-LAMP LUM-INT=560UCD IF=SOMA-MAX
Keycap Line
5062-7755 3 1 Battery Holder Includes Wires
Parts List, Rear Frame
Monofluoride
Line Filter Module
\ \
‘v’
FI c
P3$CES
‘\‘\
Major Assembly and Cable Locations
Major Assembly and Cable Locations
A21OCXO
FL3 not Assigned FL4
Cables
Hinged Assemblies
1W2 W52
I T E
Bottom View Al5 Unfolded Major Assembly and Cable Locations
WI8 Aiai
Al6 Fast ADC Option Major Assembly and Cable Locations
\\\
Rear View Major Assembly and Cable Locations 6-l
Assembly Level Text
Block Diagrams
General Troubleshooting 7-l
General Troubleshooting
Assembly Test Points
Ribbon Cables
Pad
@AMPLIFIER
Ribbon Cable Connections 1 General Troubleshooting
Ribbon Cable Connections 2 General Troubleshooting
Service Cal Data Softkey Menus
PKEq
Service Cal Data Menu
Troubleshooting to a Functional Section
Sloda
Location of Assembly Troubleshooting Text
Rythm
CRT
Loading the software
TAM Test and Adjustment Module
HP-IB addresses
Data files and system mass storage files
Executing a test
TAM Requirements
Revision Connectors
Test Connectors
Inconsistent Results
Erroneous Results
Display/Power Supply
Automatic Fault Isolation
Controller Check
ADC/lnterface Check
Manual Probe Troubleshooting
LO Control Check
RF Low Band Check
Calibration Oscillator Troubleshooting Mode
RF Path Fault Isolation
Viewing Multiple Messages
Error Messages
Error Message Elimination
System Analyzer Programming Errors 100 to
System
ADC Errors 200 to
YTO Loop Errors 300 to
Roller PLL Errors 302 to
LO and RF Hardware/Firmware Failures 300 to
General Troubleshooting
General Troubleshooting
YTO Loop Errors 317 to
Roller Oscillator Errors 321 to
OFF Unlk Freq ACC
YTO Loop Error
YTO Leveling Loop
MHz Reference Loop
Sampling Oscillator
Fractional N PLL
Span Accuracy Calibration Errors 356 to
YTO Loop Settling Errors 351 to
Automatic if Errors 400 to
RBW
RBW 3K
LIN Ampl LOG Ampl
General Troubleshooting 7-3
General Troubleshooting
Ampl 1M
General Troubleshooting
General Troubleshooting
300 MHz
System Errors 600 to
Digital and Checksum Errors 700 to
Eerom Checksum Errors 700 to
ROM U306 ROM U307 ROM U308 ROM U309 ROM U310 ROM U311
Program ROM Checksum Errors 705 to
Model Number Error
Battery Problem
RAM Check Errors 711 to
Microprocessor Error 7
System Errors 750 to
Fast ADC Error
Option Module Errors 800 to
TG Unlvl
User-Generated Errors 900 to
Functional Sections General Troubleshooting
Block Diagram Description
A7 Sloda
RF Section
A10 YIG-Tuned Filter/Mixer
Al3 Second Converter
Second if Amplifier part of A15
Flatness Compensation Amplifiers part of AM
Third Converter part of A15
Sweeping the First LO
Synthesizer Section
Reference PLL part of A15
YTO PLL A7, All, part of A14, part of A15
Offset Lock Loop part of A15
Phase Lock Loops Fractional N PLL part of A14
If Section
A4 Log Amplifier/Cal Oscillator Assembly
A5 if Assembly
ADC/lnterface Section
Log Expand/Video Functions
Controller Section
Triggering
Firmware
A6 Power Supply
Display/Power Supply Section
Display ASM
Al7 CRT Display Driver
Page
Page
Page
Page
ADC/lnterface Section
ADC/lnterface Section
W2 Control Cable Connections
GND RF Gain LO3 ERR LVFC-ENABLE FC ERR YTO ERR
ADC/lntetface Section
GND Scan Ramp Video Trigger DAC2
A3 Test Connectors
Troubleshooting Using the TAM
ADC ASM ADC MUX
Automatic Fault Isolation References
TAM Tests versus A3 Test Connectors
Keyboard/RPG Problems
Keyboard Interface
Keyboard Matrix
RPG Interface
Counter Frequencies
Triggering or Video Gating Problems
Trigger MUX Truth Table
Free RUN Video Line External
10 ADC/lnterface Section
Level
Yiiqx5q
12 ADC/lntertace Section
Preselector Peaking Control Real Time DAC
ADC/lntefface Section
Flatness Control RF Gain DACs
14 ADC/lnterface Section
A3 Assembly Video Circuits
Log Offset/Log Expand
16 ADC/lnterface Section
Video MUX
Video Filter
Video Filter Buffer Amplifier
Latch Outputs
18 ADC/lnterface Section
Positive/Negative Peak Detectors
Select Desectdr POS Peak mode
Peak Detector Reset
HMUX-SELO/l versus Detector Mode
20 ADC/lnterface Section
ADC MUX
Rosenfell Detector
22 ADC/lnterface Section
Logic Levels at A3U108
Track and Hold
Variable Gain Amplifier VGA
A3 Assembly ADC Circuits
ADC Control Signals
24 ADC/lnterface Section
ADC Start/Stop Control
26 ADC/lnterface Section
ADC ASM
Ramp Counter
A3 Assembly Control Circuits
Analog Bus Drivers
28 ADC/lnterface Section
Analog Bus Timing
10. Demultiple er A3U410 Truth Table
Interface Strobe Select
1. Demultiple er A3U500 Truth Table
30 ADC/lnterface Section
Video Input Scaling Amplifiers and Limiter
Al6 Assembly Fast ADC Circuits Option
32 ADC/lnterface Section
Bit Flash ADC
Byte Static RAM
Peak/Pit Detection
POS
NEG
CPU Interface and Control Registers
Al6 Assembly Fast ADC Control Circuits Option
13. Control Word at Primary Address U3 and U4
34 ADC/lntertace Section
Lsample
Vtrig POL
Ladcen
Lloadaddr
Reference Clock
38 ADC/lnterface Section
Hswp
Trigger
Clock and Sample Rate Generator
Bit 32 K Circular Address Counter
Bit Post-Trigger Counter
Video Trigger Comparator
Page
QEL--QWa5-w---w
If -l
If Section
If Section
A4 LOG AMP/CAL OSC
Troubleshooting A5 with the TAM
Troubleshooting the Log Amplifier with the TAM
TAM Tests versus Test Connectors
Ifdac
Fdac
Cal fist Troubleshooting Nude
Troubleshooting the Cal Oscillator with the TAM
Sweep Width Settings
Automatic if Adjustment
Parameters Adjusted
Requirements
Performance Test Failures
If Gain Uncertainty Performance lest
Scale Fidelity Performance lest
Log Amplifier P/O A4 Assembly
Resolution Bandwidths Performance Tests
Log Amplifier
If Gain Application Guidelines ATTEN=lO dB
Linear Amplifiers
Video Off set
Video Output
Frequency Counter Prescaler/Conditioner
AM/FM Demodulator
MHz if Filters
KHz if Filters
MHz Vcxo
KHz and 10.7 MHz if Filters
Input Switch
LO Switch
Synchronous Detector
Log Off set/Gain Compensation
A5 if Assembly
KHz
If Signature
If Adjust Signature If Section
Detailed if Adjust Signature
LOG Ofysets
510 CjBm,-‘-ifTiN= dB 0 dBm II ill M P L E IIilI
Common if Signature Problems
L3klB
11. Region B Amplitude Variation
500
MHz Resolution Bandwidth Problems
KHz and 10 kHz Resolution Bandwidth Problems
KHz Resolution Bandwidth Problems
Step Gains
15. Faulty Crystal Symmetry
Cal Oscillator P/O A4 Assembly
Inadequate CAL OSC Amptd Range
Cal Oscillator Unlock at Beginning of if Adjust
Hz to 3 kHz Resolution Bandwidth Out of Specification
16. Output Waveform, 10 kHz Resolution Bandwidth If Section
17. Output Waveform, 3 kHz Resolution Bandwidth
19. Output Waveform, 300 Hz Resolution Bandwidth
Low-Pass Filter
Sweep Generator
AM/FM Demodulation, Audio Amplifier, and Speaker
If Section
Page
Page
Page
Controller -l
Controller Section
2 Controller Section
MSl, MS3 through MS6, MS8
Controller Section
A2 Test Connectors
Display Problems
Digital Signature Analysis DSA
Line Generators
Line Generator Output Waveforms
Blanking
Blanking Waveforms 6 Controller Section
Expanded Blanking Waveforms
Display Jumbled or Trace Off Screen
IO-8 Controller Section
Switch Driver Waveform Lchar
Distorted X/Y Line Generator Waveforms
Intensity
Bad Characters or Graticule
Lo-10 Controller Section
Delta X Waveform
Long Lines Dimmer Than Short Lines
Lo-12 Controller Section
Analog Zero-Span Problems Non-Option
Controller Section lo
Frequency-Count Marker Problems
Frequency Counter
Gate Times
Lo-14 Controller Section
Controller Section lo-15
State- and Trace-Storage Problems
Lo-16 Controller Section
Keyboard Problems
Page
Synthesizer l-1
Synthesizer Section
Synthesizer Section
A21 Ocxo
TAM Connector Pin Locations L. Measured Signal Line Location
Al4 and Al5 Test Connectors
4 Synthesizer Section
Synthesizer l-5
DAC MS7
6 Synthesizer Section
FAV
YTF
AGC
OFL
MS1 MS2 MS3 MS4 MS6 MS8 MS5,MS7,MS8
MS8 MS2 MS5 MS6 MS7
Confirming a Faulty Synthesizer Section
Troubleshooting Test Setup
8 Synthesizer Section
YTO PLL
Check A3 ADC MUX Function Block steps
Center Frequency Tuning Values
Check A14J301 10 MHz reference input steps
Synthesizer l-9
Check First LO steps
Check Al4 frequency control assembly steps
Synthesizer -l
YTO Loop Test Setup Check Al5 RF assembly steps
12 Synthesizer Section
4. Sampler and Sampling Oscillator Test Setup
PLL Locked at Wrong Frequency
General PLL Troubleshooting
Sampling Oscillator Test Frequencies
Synthesizer
PLL Locked at Wrong Frequency Synthesizer Section
REF- \ Y
Synthesizer l-15
Unlocked PLL
Unlocked Reference PLL
Troubleshooting
Operation
Check 100 MHz VCXO, tripler, and doubler steps
Check phase/frequency detector steps
Check 10 MHz reference to phase/frequency detector steps
Check the 100 MHz lock loop integrator steps
Check level at amplifier input steps
Third LO Driver Amplifier
Check loop references steps 1
Unlocked Offset Lock Loop Sampling Oscillator
Check levels into mixer steps
20 Synthesizer Section
Sampling Oscillator PLL Divide Numbers
Check path to phase/frequency detector steps
Unlocked YTO PLL
7. Amplifier Polarities
7. Troubleshooting an Unlocked YTO PLL Synthesizer l-25
Troubleshooting an Unlocked YTO PLL
26 Synthesizer Section
Check First LO pretune frequency and amplitude steps
Check sampler drive output of A7 Sloda steps
Check the fractional N oscillator steps
Check sampler if steps
Check FM loop sense steps
Synthesizer Section
Check main coil coarse and fine DACs steps
Voltages in FM Coil and Main Loop Drivers
Check main coil tune DAC steps
Main Coil Coarse and Fine DACs Voltages
30 Synthesizer Section
Confirming an Unlocked Condition
Unlocked Fractional N PLL
Fractional N PLL
10. Postscaler Divide Numbers
32 Synthesizer Section
1 1. Unlocked Fractional N Troubleshooting Areas
Vco
VCO
0AT VOLTAGE-CONTROLLED Oscillator
Synthesizer l-35
12. Divider and Integrator Troubleshooting
13. Sweep Signal Destination versus Span
Frequency Span Accuracy Problems
Determining the First LO Span
14. Harmonic Mixing Number versus Center Frequency
Synthesizer l-37
Confirming Span Problems
YTO FM Coil Span Problems LO Spans 2.01 MHz to 20 MHz
YTO Main Coil Span Problems LO Spans 20 MHz
15. Settings of Sweep Switches
38 Synthesizer Section
Synthesizer l-39
Fractional N Span Problems LO Spans 52 MHz
Check span attenuator steps
First LO Span Problems All Spans
Check current source steps
40 Synthesizer Section
16. Settings for Switches and Comparators
First LO Span Problems Multiband Sweeps
HP 6562E Sweep and Scan Ramps Synthesizer Section
Phase Noise Problems
Phase Noise in Locked versus Unlocked Spans
Reference versus Reference PLL Phase Noise
Fractional N PLL Phase Noise
Fractional N versus Offset PLL or YTO PLL Phase Noise
Sampler and Sampler if
Sweep Generator Circuit
Set a microwave source to the following settings
10. Simplified Synthesizer Section
JP/O a l
Al5 RF
50 Synthesizer Section
A21 Ocxo
Page
Page
RF Section
RF Section
Al4 and Al5 Test Connectors RF Section
Automatic Fault Isolation References
PIN
Low Band Problems
Low and High Band Problems
High Band Problems
A7 LO Distribution Amplifier
‘0 0 0 0 0 0
A8 Low Band Mixer
A9 Input Attenuator
Low
RF Section
Al4 Frequency Control Assembly
Loda Drive
RF -l
A7 First LO Distribution Amplifier Drive
Control Latch for Band-Switch Driver
YTF Driver Circuit
HP 8582E Rear-Panel LO SWP Output
FE RUI
Pbbzl Offset
Sweep + Tune Multiplier Values
Al5 RF Assembly
Confirming a Faulty Third Converter
Confirming Third Converter Output
Third Converter
Control Latches
Flatness Compensation Control
SIG ID Oscillator Option
Q604 on
MHz Reference
MHz Reference at A15J302 RF Section
MHz TTL Reference at U304 Pin RF Section
RF Section Mnemonic Table
Page
Isplay/Power Supply Section
@I w3
Wl Power-Cable Connections
GND
PWR UP
Pms Pins 41’ +28
Al7 Test Connector TAM Tests versus Test Connectors
Blank Display Using the TAM
Blank Display
Probe Power Socket
Blanking Signal
Display Distortion
Focus Problems
Intensity Problems
Display/Power Supply -l
A6 Power Supply Assembly Troubleshooting
Dead Power Supply
Check the Supply Voltages
Buck Regulator
Kick-start/Bias
Supply Restarting Every 1.5 Seconds Kick Start
Line Fuse Blowing
Low Voltage Supplies
Buck Regulator Control Loop
High Voltage Supplies
CRT Supply Dropping Out
DC-DC Converter Control
Buck Regulator Control
Power Up
Page
Page
Component-Level Information Packets A-l
Component-Level Information Packets
Component-Level Information Packets
Table A-l. HP 8562 Spectrum Analyzer Documented Assemblies
Component-Level Information Packets A-3
Table A-l. HP 8582 Spectrum Analyzer Documented Assemblies
Page
Index-l
Ocxo
AFI
Index-2
Fadc
Index-3
Index-4
Loda
Index-5
Index-6
Index-7
Index-6
