6. General Troubleshooting
Introduction
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Assembly Level Text
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Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assembly Test Points
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P a d . .
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Test Jack
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Ribbon Cables
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WR PROT/WR
Menus
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Troubleshooting to a Functional Section
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Using the TAM . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Functions
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TAM Requirements
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Test Connectors
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Revision Connectors . . . . . . . . . . . . . . . . . . . . . . . .
Inconsistent Results . . . . . . . . . . . . . . . . . . . . . . . . .
Erroneous Results . . . . . . . . . . . . . . . . . . . . . . . . . .
Blank Display
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Automatic Fault Isolation
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Display/Power Supply . . . . . . . . . . . . . . . . . . . . . . .
Controller Check
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Check
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IF/LOG Check . . . . . . . . . . . . . . . . . . . . . . . . . .
LO Control Check
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RF Check
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Manual Probe Troubleshooting
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Cal Osc. Troubleshooting Mode
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Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Viewing Multiple Messages . . . . . . . . . . . . . . . . . . . . . .
Error Message Elimination . . . . . . . . . . . . . . . . . . . . . .
System Analyzer Programming Errors (100 to 150)
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ADC Errors (200 to 299) . . . . . . . . . . . . . . . . . . . . . . .
LO and RF Hardware/Firmware Failures (300 to 399) . . . . . . . . . .
YTO Loop Errors (300 to 301)
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Roller PLL Errors (302 to 316) . . . . . . . . . . . . . . . . . . .
YTO Loop Errors (317 to 318)
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Roller Oscillator Errors (321 to 329) . . . . . . . . . . . . . . . . .
YTO Loop Errors (331)
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600 MHz Reference Loop (333) . . . . . . . . . . . . . . . . . . .
YTO Leveling Loop (334)
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Sampling Oscillator (335)
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Automatic IF Errors (400 to 599) . . . . . . . . . . . . . . . . . . .
System Errors (600 to 651) . . . . . . . . . . . . . . . . . . . . . .
Digital and Checksum Errors (700 to 799)
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EEROM Checksum Errors (700 to 704)
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Program ROM Check-sum Errors (705 to 710)
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RAM Check Errors (711 to 719)
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Microprocessor Error (717) . . . . . . . . . . . . . . . . . . . . .
Battery Problem (718) . . . . . . . . . . . . . . . . . . . . . . . .
Model Number Error (719) . . . . . . . . . . . . . . . . . . . . . .
System Errors (750 to 757) . . . . . . . . . . . . . . . . . . . . . .
6-1
6-l
6-l
6-2
6-2
6-2
6-2
6-6
6-8
6-10
6-10
6-11
6-11
6-11
6-12
6-12
6-12
6-12
6-12
6-12
6-13
6-13
6-13
6-13
6-13
6-14
6-15
6-15
6-16
6-16
6-17
6-18
6-18
6-18
6-20
6-20
6-21
6-21
6-22
6-22
6-22
6-31
6-31
6-31
6-32
6-33
6-33
6-33
6-34
6-34
Contents-3
Содержание 8560A
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