Epson ColorPage EPL-C8000 Service Manual page 432

EPSON EPL-C8000
FIP-2.32 TOP EXIT SENSOR is Defective
Step Check point
Perform the preliminary inspection.
Parts to inspect:
1
TOP EXIT SENSOR, MAIN HARNESS ASSY, EXIT
HARNESS, MCU PWB
Check: Power supply to the TOP EXIT SENSOR
l
2 Is the voltage level correct at the pins below?
- P17-7PIN<=>P17-8PIN: 5VDC
Check: Power supply to the TOP EXIT
l
3 Is the voltage level correct at the pins below?
• P17-9PIN<=>P17-8PIN: 5VDC
Check: TOP EXIT detection signal
l
Is the voltage level correct depending on the conditions
below?
4
- P/J17-9PIN<=>P/J17-8PIN
- Passed condition (Paper is set): 0VDC
- Blocked condition (No paper is set): 5VDC
Check: EXIT HARNESS electrical continuity
l
Does the EXIT HARNESS have proper continuity at the
5
pins below?
- J165<=>J161
Check: MAIN HARNESS ASSY electrical continuity
l
Does the MAIN HARNESS ASSY have proper
6
continuity at the pins below?
- J161<=>J17
Chapter 5 TROUBLESHOOTING
Remedy
Yes
Replace/reinstall the defective part(s).
Go to Step 3.
Go to Step 4.
Replace the MCU PWB.
Go to Step 6.
Replace the TOP EXIT SENSOR.
No
Go to Step 2.
Go to FIP-2.1 "LVPS 5VDC is
Defective".
Replace the MCU PWB.
Go to Step 5.
Replace the EXIT HARNESS.
Replace the MAIN HARNESS ASSY.
Rev. B
5-98