Epson ColorPage EPL-C8000 Service Manual page 433

EPSON EPL-C8000
FIP-2.33 PROCESS MOTOR ASSY is Defective
Step Check point
Perform the preliminary inspection.
Parts to inspect:
1
PROCESS MOTOR ASSY, MAIN HARNESS ASSY, MCU
PWB
Check: Power supply to the PROCESS MOTOR ASSY
l
2 Is the voltage level correct at the pins below?
- P/J51-2<=>P/J51-1: 24VDC
Check: Power supply to the LVPS
l
3 Is the voltage level correct at the pins below?
- J32-9<=>J32-10: 24VDC
Check:
Power supply to the PROCESS MOTOR's ON signal
4
l
Is the voltage level correct at the pins below?
- P17-31<=>P17-33: 24VDC
Check:
Power supply to the PROCESS MOTOR SPEED signal
5
l
Is the voltage level correct at the pins below?
- P17-32<=>P17-33: 24VDC
Check: MAIN HARNESS ASSY electrical continuity
l
Does the MAIN HARNESS ASSY have proper
6
continuity at the pins below?
- J52<=>J17
Chapter 5 TROUBLESHOOTING
Remedy
Yes
Replace/reinstall the defective part(s).
Go to Step 4.
Replace the MAIN HARNESS ASSY.
Go to Step 5.
Go to Step 6.
Replace the PROCESS MOTOR
ASSY.
No
Go to Step 2.
Go to Step 3.
Go to FIP-2.2 "LVPS 24VDC is
Defective".
Replace the MCU PWB.
Replace the MCU PWB.
Replace the MAIN HARNESS ASSY.
Rev. B
5-99