Pest - Power Supply +12V Sleep Faults - Xerox ColorQube 8570 Service Manual

99,056, 99,057 PEST - Power Supply +12V Sleep Faults

A Power Supply error has occurred. The following troubleshooting procedure applies to these
errors.
Table 1 Applicable Fault Codes
99,056 PEST - Power Supply +12V Sleep Over Limit
99,057 PEST - Power Supply +12V Sleep Under Limit
Initial Actions
• Reboot the printer and verify the error persists.
• Check the component power connections and harness condition.
• If the problem persists, perform the following procedure.
Troubleshooting Reference
Applicable Parts (Chapter 5 - Parts List)
• Electronics Module, PL 5.1 Item 1
• Power Control Board, PL 5.1 Item 8
Wiring and Plug/Jack Reference (Chapter 7 - Wiring Data)
• Figure 2, Wave Amplifier, Printhead Heaters
• Figure 6, Top Side Wire Routing
Procedure
Be careful when measuring voltages on the test pads that you do not short the probe to the
metal shell of the Electronics Module as you may cause damage.
Check voltage at TP +12V Sleep (see Figure
5%)?
Y N
Replace the Electronics Module (REP
Check the Printhead wiring harness connectors
secure and undamaged?
Y N
Reseat and/or replace the wiring harness.
Replace the Power Control Board (REP
Xerox Internal Use Only - Revised, 3rd Revision
ColorQube 8570/8870 Service Manual
CAUTION
1). Is the voltage within specification (+/-
5.1).
P/J180 and P/J201. Are the connections
5.6) (Electronics Module).
Figure 1 +12V Sleep Test Point on the Power Control Board
October 2012
2-85
Fault Messages and Codes
99,056, 99,057