Epson ColorPage EPL-C8000 Service Manual page 420

EPSON EPL-C8000
FIP-2.20 ADC SENSOR is Defective
Step Check point
Perform the preliminary inspection.
1 Parts to inspect:
ADC SENSOR ASSY, MAIN HARNESS ASSY, MCU PWB
Check: Power supply to the ADC Sensor
l
2
Is the voltage level correct at the pins below?
- P17-18PIN<=>P17-21PIN: 5VDC
Check: MAIN HARNESS ASSY electrical continuity
l
Does the MAIN HARNESS ASSY have proper
3
continuity at the pins below?
- J17<=>J81
Check: ADC SENSOR ASSY replacement
l
4
Does the problem still occur after replacing the ADC
SENSOR ASSY?
Chapter 5 TROUBLESHOOTING
Remedy
Yes
Replace/reinstall the defective part(s).
Go to Step 3.
Go to Step 4.
Replace the MCU PWB.
No
Go to Step 2.
Go to FIP-2.1 "LVPS 5VDC is
Defective".
Replace the MAIN HARNESS ASSY.
Problem solved.
Rev. B
5-86