Xerox DocuColor 12/DCCS50, Service Manual

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DocuColor 12/DCCS50
OF4-002 Drum Motor RAP
Reissue
Status Indicator RAPs
OF4-002 Drum Motor RAP
This RAP is used to repair the Main Motor and Drum Motor circuit failures when directed by
another RAP.
Initial Actions
• Refer to BSD 4.1, Main and Drum Drive Control, in the following procedure:
• Check the Drive Mechanism for damage, jams, and obstructions.
Procedure
Go to Flag 5 on BSD 4.1 and check for +5 VDC at P/J42 -4 on the Distribution PWB. +5 VDC
is measured at P/J42 -4 on the Distribution PWB.
Y N
Perform the following:
•
Go to Flag 5
on BSD 4.1 and check for a short/open circuit.
• Go to the +5 VDC Power (IOT LVPS) RAP .
Perform the following:
•
Enter DC330 004-021 Drum Motor. Press Start and Stop.
• Check for a change of state from (L) to +5 VDC at P/J417B -18 on the IOT Drive PWB.
The voltage at P/J417B -18 switched between (L) and +5 VDC on the IOT Drive PWB.
Y N
Perform the following:
•
Go to Flag 7
on BSD 4.1 and check for an open/short circuit.
• Replace the Drum Motor ( PL 1.1 ).
• Replace the IOT Drive PWB ( PL 9.2 ).
Go to Flag 6 on BSD 4.1 and check for +24 VDC at P/J42 -2 on the Distribution PWB. +24
VDC is measured at P/J42 -2 on the Distribution PWB.
Y N
Perform the following:
•
Go to Flag 6
on BSD 4.1 and check for a short/open circuit.
• Go to the +24 VDC Power (IOT LVPS) RAP .
Enter DC330 004-021 Drum Motor. The Drum Motor runs.
Y N
Check for Logic (L) at P/J417B -18 Logic (L) is measured at P/J417B -18
Y N
Perform the following:
•
Go to Flag 8 on BSD 4.1 and check for an open/short circuit.
• Replace the Drum Motor ( PL 1.1 ).
• Replace the IOT Drive PWB ( PL 9.2 ).
Perform the following:
•
While exercising DC330 004-021 Drum Motor, check for a change of state on the
Drum Motor On line
P/J417B .
• While in [04-021] Component Control and the Drum Motor is running, check for the
following conditions at
–
P/J417B -18, Logic (L)
– P/J417B -17, +2.5 VDC
– P/J417B -16, Logic (L)
– P/J417B -15, Logic (L)
– P/J417B -14, Logic (L)
• Go to Flag 8 on BSD 4.1 and check for an open /short circuit.
• Replace the Drum Motor ( PL 1.1 ).
• Replace the IOT Drive PWB ( PL 9.2 ).
Perform the following:
•
While in [04-021] Component Control and the Drum Motor is running, check for the follow-
ing conditions at
–
P/J417B -18, Logic (L)
– P/J417B -17, +2.5 VDC
– P/J417B -16, Logic (L)
– P/J417B -15, Logic (L)
– P/J417B -14, Logic (L)
• Go to Flag 8 on BSD 4.1 and check for an open /short circuit.
• Replace the Drum Motor ( PL 1.1 ).
• Replace the IOT Drive PWB ( PL 9.2 ).
A
A
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