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IQ 41 1st BTR HVPS RAP
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IQ 41 1st BTR HVPS RAP
This RAP is used to isolate the cause of missing or out-of-range voltages.
Procedure
WARNING
Failure to operate ALL the dC330 output components listed below will result in perma-
nent damage to the photoreceptor.
Enter and stack the following dC330 components in the order listed: Drum Motor [04-021];
Erase Lamp [
09-050]; Charge Corotron Wire [09-070]; Charge Corotron Grid [09-81]; and 1st
BTR HVPS [09-047]. Approximately +3.0 VDC is measured at P
/J416
A-A4 on the IOT
Drive PWB.
YN
+24 VDC is measured at P
/J416A-
A1 on the IOT Drive PWB.
YN
Check for an open connection at P
/J4
16A-A1. If OK, replace the IOT Drive PWB PL
9.2.
Approximately +3.5 VDC is measured at P/J416A-A3
.
YN
Check for an open connection at P
/J
416A-A3. If OK, replace the IOT Drive PWB PL
9.2.
Go to Flag 1, F
lag 2, and Flag 3 BSD9.8 and check for an open circuit. If OK, replace the
1st BTR HVPS PL 7.6.
Check for an open connection at P/J41
6A-A4 on the IOT Drive PWB. If OK, go to Flag 4 and
check for an open circuit. If OK, the 1st BTR HVPS checks out OK. Check the following:
• Bias Roll (PL
7.
6).
• Earth Plates (PL 7.
7).
• High Voltage Lead from the HVPS to the Bias Roll. Replace the BTR HVPS if damaged
(PL 7.6).
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