626 Chapter12
Display/Power Supply Section
Troubleshooting Using the TAM
Troubleshooting Using the TAM
When using automatic fault isolation, the TAM indicates suspected
circuits that need to be manually checked. Use Table 12-1 on page 626
to locate the manual procedure.
Table 12-5 on page 627 lists assembly test connectors associated with
each manual probe troubleshooting test. Figure 12-5 on page 627
illustrates the location of A17 test connectors.
Table 12-1 Automatic Fault Isolation References
Suspected Circuit Indicated by
Automatic Fault Isolation
Manual Procedure to Perform
Check A2 Controller Blanking Signal
Check All Power Supply Outputs Dead Power Supply (steps 1-5)
Check Buck Regulator Dead Power Supply (steps 13-23)
Check Buck Regulator Control
Circuitry
Dead Power Supply (steps 11-21)
Check High-Voltage Supplies High Voltage Supplies
Check Input Rectifier Dead Power Supply (steps 6-7)
Check Intensity Adjustments Intensity Problems (steps 1-4)
Check Kick Start/Bias Circuitry Dead Power Supply (steps 8-10)
Check Low-Voltage Supplies Low Voltage Supplies
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