Epson AcuLaser C8500 Service Manual page 434

EPSON AcuLaser C8500
*MCU PWB check
14 Is the voltage 5VDC between P/J21-1PIN <=> P/J21-2PIN 5VDC?
• Close the MAIN P/H FRAME ASSY, FUSER ASSY FRONT COVER ASSY and check.
*FUSER ASSY check
15
Is there a proper continuity between J71-3PIN <=> J71-4PIN?
*MAIN P/H FRAME ASSY check
16
Is there a proper continuity between J91-1PIN <=> J91-2PIN?
*P/H HARNESS ASSY continuity check
17
Is there a proper continuity between P91-1PIN <=> J97-2PIN?
*FUSER CONNECTOR continuity check
18
Is there a proper continuity between P91-1PIN <=> J97-2PIN?
Troubleshooting Level 2 FIP (Fault Isolation Procedure
Replace the MAIN
Replace the MCU PWB.
HARNESS ASSY.
Replace the FUSER
Go to step16.
ASSY.
Replace the MAIN P/H
Go to step 17.
FRAME ASSY.
Replace the P/H
Go to step 18.
HARNESS ASSY.
Replace the MAIN Replace the FUSER
HARNESS ASSY. CONNECTOR.
Revision C
5-82