Epson AcuLaser C8500 Service Manual page 455

EPSON AcuLaser C8500
FIP-2.22 Faulty ROTARY SENSOR FIP-2.22 Faulty ROTARY SENSOR FIP-2.22 Faulty ROTARY SENSOR FIP-2.22 Faulty ROTARY SENSOR
Step
*Initial setting
Use of parts of non-EPSON specifications, improper mounting, damage, distortion, dirt, adherence
of foreign matter?
1
*Main parts to check
ROTARY SENSOR, MAIN HARNESS ASSY, MCU PWB
*ROTARY SENSOR power supply check
2
Is the voltage between P16-16PIN <=> P16-14PIN 5VDC?
*ROTARY SENSOR detection signal power supply check
3
Is the voltage between P16-16PIN <=> P16-14PIN 5VDC?
*ROTARY SENSOR detection signal check
Is the voltage between P/J16-16PIN <=> P/J16A-14PIN as follows?
4
When transmitting (no notch), the
When blocked (notch detected)
*MAIN HARNESS ASSY continuity check
5
Is there a proper continuity between J16 <=> J58?
Troubleshooting
Check
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 ROTARY Replace the MAIN
SENSOR. HARNESS.
Revision C
No
5-103