Xerox DocuColor 12/DCCS50, Service Manual

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DocuColor 12/DCCS50
IQ 38 Charge Corotron HVPS RAP, IQ 39 Preclean
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Reissue
Press Stop . Perform the following:
• Set the meter to measure micro amps.
• Disconnect the Charge output connector from the CC/PCC HVPS.
• Connect one meter lead to the supply side of the connector and the other lead to the har-
ness side.
• Enter dC330 [09-070] . Press Start .
Approximately 600 to 800 micro amps is measured.
Y
N
Replace the CC/PCC HVPS ( PL 9.1 ).
The Charge Corotron HVPS checks out OK. Check the following:
•
Charge Corotron Assy ( PL 5.4 ).
• Charge Corotron connector ( PL 5.2 ).
IQ 39 Preclean Corotron HVPS RAP
This RAP is used to isolate the cause of missing or out-of-range voltages and current.
Procedure
WARNING
Electrical Shock Hazard. In the following procedure, high DC voltage circuits will be
tested. Use extreme caution when testing these circuits. Do not touch the multimeter or
the meter leads while testing the circuits.
Ensure that NVM location [774-031] is set at 3 and location [774-029] is set at 130. Enter and
operate DC330 [09-068]. Observe the G Monitor (Red) LED on the CC/PCC HVPS.
The LED
is lit.
Y
N
Enter and operate DC330 [09-070] and observe the B Monitor (Red) LED on the CC/PCC
HVPS.
The LED is lit.
Y N
+24 VDC is measured at P/J92
-1 on the CC/PCC HVPS.
Y N
Go to Flag 2 BSD9.13 and check for an open circuit. If OK, replace the IOT
Drive PWB ( PL 9.2 ).
Check for an open connection between P/J92 -1 and P/J92 -1. If OK, replace the
CC/PCC HVPS ( PL 9.1 ).
Approximately +1.85 VDC is measured at P/J92 -6.
Y N
Go to Flag 3 BSD9.13 and check for an open circuit. If OK, replace the IOT Drive
PWB ( PL 9.2 ).
Check for an open connection at P/J92 -6. If OK, go to Flag 4 BSD9.13 and check the
Preclean output circuit, including the Preclean Corotron wire ( PL 5.4 ) for and open circuit.
If OK, replace the CC/PCC HVPS ( PL 9.1 ).
Set your meter to measure micro amps. Disconnect the Preclean output connector from the
CC/PCC HVPS (
PL 9.1 ). Connect one meter lead to the supply side of the connector and the
other lead to the harness side. Make another full-color copy. Approximately 200 to 400
micro amps is measured.
Y
N
Replace the CC/PCC HVPS ( PL 9.1 ).
The Preclean Corotron HVPS checks out OK. Check the following:
•
Preclean Corotron ( PL 5.4 ).
• Preclean Corotron connector ( PL 5.2 ).
A