Iq 38 Charge Corotron Hvps Rap - Xerox DocuColor 12/DCCS50 Service Manual

Y N
Press Stop. Approximately +3.2 VDC is measured at P/J418A-10 on the IOT Drive
PWB when Start is pressed.
Y N
Replace the IOT Drive PWB (PL
Approximately +3.2 VDC is measured at P/J91-4 on the Developer Bias HVPS.
Y N
Go to Flag 6 BSD9.3 and check for an open circuit.
Approximately +4.5 VDC is measured at P/J418A-11 on the IOT Drive PWB.
Y N
Replace the IOT Drive PWB (PL
Approximately +4.5 VDC is measured at P/J91-3 on the Developer Bias HVPS.
Y N
Go to Flag 7 BSD9.3 and check for an open circuit.
Replace the Developer Bias HVPS
Ensure that the following are OK:
• Fingers in front Developer Rotor End Frame
• Developer Bias Brush and Plate (PL
• Wire from Bias Plate to Developer Roll
Image Quality
IQ 37 Developer Bias HVPS RAP, IQ 38 Charge
9.2).
9.2).
(PL 9.1).
(PL 6.7)
6.1)
(PL 9.1)

IQ 38 Charge Corotron HVPS RAP

This RAP is used to isolate the cause of missing or out-of-range voltages and current.
Procedure
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.
Enter dC330 [09-070]. Press Start. Observe the B Monitor (Red) LED on the CC/PCC HVPS.
The LED is lit or flickering.
Y N
+24 VDC is measured at P/J82-1 on the CC/PCC HVPS.
Y N
Approximately +1.0 VDC is measured at P/J82-1 on the CC/PCC HVPS.
Y N
+24 VDC is measured at P/J92-1 on the CC/PCC HVPS.
Y N
Go to Flag 1
Drive PWB
Go to Flag 1 BSD9.1 and check the wire for an open circuit. If OK, replace the
CC/PCC HVPS
Go to Flag 4 BSD9.1 and check the Charge output circuit, including the Charge
Corotron wire (PL
9.1).
Approximately +3.5 VDC is measured at P/J92-3.
Y N
Go to Flag 2 BSD9.1 and check for an open circuit. If OK, replace the IOT Drive
PWB (PL 9.2).
Replace the CC/PCC HVPS
The LED is on steady (not flickering).
Y N
+24 VDC is measured at P/J82-1 on the CC/PCC HVPS.
Y N
Check for an open connection between P/J82-1 and P/J82-1. If OK, replace the
CC/PCC HVPS (PL
Go to Flag 3 BSD9.1 and check for an open circuit.
Press Stop. Enter dC330 [09-081]. Press Start. Approximately +3.5 VDC is measure at
J92-4.
Y N
Go to Flag 5 BSD9.1 and check for an open circuit. If OK, replace the IOT Drive PWB
9.2).
A
1/05
3-36
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WARNING
BSD9.1 and check for an open circuit. If OK, replace the IOT
(PL 9.2).
(PL 9.1).
5.4), for an open circuit. If OK, replace the CC/PCC HVPS
(PL 9.1).
9.1).
(PL
P/
(PL
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