Xerox DocuColor 1632 Service Manual page 80

4-341 IOT Logic
Operation failure of an MCU PWB operation.
Initial Actions
Re-installation the software.
Procedure
CH3.1A, CH3.6A
Connect black meter lead to ground or machine frame. There is +5VDC measured at J401-
B20
Y N
There is +5VDC measured at j568-5
Y N
There is +5VDC measured at j568-1
Y N
Repair the wire between FS534 and j568-2.
Replace ROS Assembly (PL 3.1).
Check for an open circuit between j568-5 the p400-9.
If the circuit is OK, replace the MCU PWB
Replace MCU PWB (PL 13.1).
If the problem continues, replace ROS Assembly
Status Indicator RAPs
4-341, 4-342
(PL 13.1).
(PL 3.1).
4-342 Flash ROM Motion
Motion failure of Flash ROM
Procedure
Switch the power off then on. The problem continues.
Y N
Return to Service Call Procedures.
Replace ROM PWB (PL13.1)
6/02
2-50
Prelaunch Training/Review
DC1632/2240