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