REV.-A
5.3 REPAIR OF THE POWER SUPPLY BOARD
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This section describes problems that indicate that the power supply board
is
defective, and it provides
various symptoms, likely causes, and checkpoints. Checkpoints refer to power waveforms, resistance
values, and other values to be checked to evaluate the operation of any component that might be bad.
Check these values and take the appropriate action.
WARNING
The power switch for this printer controls the secondary (AC) power circuit. The primary (AC) circuit
is continually active as long as the printer is connected to AC power.
Table 5-4. Repair of the Power Supply Board
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5-14
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