January 2007
2-854
WorkCentre 7132
124-391, 124-392
Revision
Status-indicator-raps
124-391 CRU OEM MCU (2)
OEM (Original Equipment Manufacturer) CRUM control failed on the MCU.
Procedure
Check the electrical connections on the ESS PWB and MCU PWB. The connectors are
securely connected.
YN
Connect the connectors.
Turn on the power again. The problem persists.
YN
Return to Service Call Procedures.
Perform GP 4, repair the problem by master SYS1.
If the problem persists, replace the MCU PWB (PL 11.1).
124-392 CRU OEM System 1 (2)
OEM (Original Equipment Manufacturer) CRUM control failed in system 1.
Procedure
Check the electrical connections on the ESS PWB and MCU PWB. The connectors are
securely connected.
YN
Connect the connectors.
Turn on the power again. The problem persists.
YN
Return to Service Call Procedures.
Perform GP 4, repair the problem by master MCU.
If the problem persists. replace the ESS PWB (PL 11.2).