Epson AcuLaser C8500 Service Manual page 462

EPSON AcuLaser C8500
FIP-2.29 Faulty TOP EXIT SENSOR FIP-2.29 Faulty TOP EXIT SENSOR FIP-2.29 Faulty TOP EXIT SENSOR FIP-2.29 Faulty TOP EXIT SENSOR
Step
*Initial setting
Use of any non-EPSON specifications, improper mounting, damage, distortion, dirt, adherence
of foreign matter?
1
*Main parts to check
TOP EXIT SENSOR, MAIN HARNESS ASSY
EXIT HARNESS, MCU PWB
*TOP EXIT SENSOR power supply check
2
Is the voltage between P17-9PIN <=> P17-10PIN 5VDC?
*TOP EXIT power supply check
3
Is the voltage between P17-11PIN <=> P17-10PIN 5VDC?
*TOP EXIT detection signal check
Is the voltage between P/J17-11PIN <=> P/J17-10PIN as follows?
4
When transmitting (paper),
When blocked (no paper)
*EXIT HARNESS continuity check
5
Is there a proper continuity between J165 <=> J161?
*MAIN HARNESS ASSY continuity check
6
Is there a proper continuity between J161 <=> J17?
Troubleshooting
Check
the value is 0VDC.
, the value is 5VDC.
Level 2 FIP (Fault Isolation Procedure
Treatment
Yes
Replace and remount
Go to step 2.
the concerned part(s).
Go to step 3 Go to FIP-2.1
Go to step 4. Replace the MCU PWB.
Replace the MCU PWB. Go to step 5.
Replace the EXIT
Go to step 6.
HARNESS.
Replace the TOP EXIT Replace the MAIN
SENSOR. HARNESS ASSY.
Revision C
No
5-110