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Model 8901B
Section 8
SERVICE
Service
8-1. INTRODUCTION TO
THIS
SECTION
This section contains information for troubleshooting and repairing the Modulation Analyzer. Included
are troubleshooting tests, block and schematic diagrams, and principles of operation.
8-2. HOW THE SECTION IS ORGANIZED
Section 8
is
contained in this and two other volumes as:
Volume 2
0
General Service Information:
Safety Considerations
Service Tools and Aids
General Troubleshooting Information
Assembly and Service Sheet Cross Reference Index
Assembly Locations
Schematic Diagram Notes
Special Functions
Error Messages
Power-Up Checks
Controller Test LEDs and Test Points
Signature Analysis
e
Service Aids:
0
Disassembly (for the front panel)
0
Block Diagram (BD) Theory and Troubleshooting
0
BD1 through BD5 Block Diagrams
The circuit descriptions and troubleshooting procedures for all the block diagrams.
Block Diagrams (foldouts) for the Modulation Analyzer.
Volume 3
Schematic Diagram Theory and Troubleshooting
Circuit descriptions
and
troubleshooting procedures for Service Sheets (SS)
1
through 34.
Volume 4
e
SS1 through
SS35
Schematic Diagrams
SSASummary
e
SSB
and SSC Summary
Schematic Diagrams (foldouts) and Component Locator Diagrams for the Modulation Analyzer.
Service Special Functions and Error Message Summary.
Direct Control Special Function Summary.
8A-
1
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