Xerox DocuColor 1632 Service Manual page 222

10-398 Fan Lock
The machine logic detected a failure of the Fuser Fan, LVPS Fan or the Rear Fan.
Procedure
Enter dC330 [004-050]. The Fuser Fan revolves at high speed.
Y N
There is +24VDC measured at J222-4.
Y N
Check the wires and connectors. If the check is OK, replace the MCU PWB (PL
13.1).
With dC330 [004-050] entered, stack dC330 [004-200] and press Start. The display is H.
Y N
Check the wires and connectors. If the check is OK, replace the MCU PWB (PL
13.1).
Replace the Fuser Fan (PL 8.1).
The Rear Fan revolves at high speed (PL 8.1).
Y N
There is +24VDC measured at J552-1.
Y N
Check the wires and connectors. If the check is OK, replace the MCU PWB (PL
13.1). If the problem continues replace the I/F PWB (PL 9.1).
With dC330 [004-050] entered, stack dC330 [004-200] and press Start. The display is H.
Y N
Check the wires and connectors. If the check is OK, replace the MCU PWB (PL
13.1).
Replace the Rear Fan (PL 8.1).
The LVPS Fan revolves at high speed (PL 9.1).
Y N
There is +24VDC measured at J214-4.
Y N
Check the wires and connectors. If the check is OK, replace the MCU PWB (PL
13.1).
With dC330 [004-050] entered, stack dC330 [004-200] and press Start. The display is H.
Y N
Check the wires and connectors. If the check is OK, replace the MCU PWB (PL
13.1).
Replace the LVPS Fan (PL 9.1).
The Fans are operating correctly. If the problem continues replace the MCU PWB (PL 13.1).
Status Indicator RAPs
10-398
Figure 1 The Fuser Fan CD
Figure 2 The Rear Fan CD
6/02
2-192
Prelaunch Training/Review
DC1632/2240