Epson AcuLaser C4000 Service Manual page 212

EPSON AcuLaser C4000/C4100/C3000
Step
Harness Assy Drive 1 (PL15.2.2) continuity check
1. Disconnect the P/J11 connector from the PWBA MCU & HVPS.
2. Disconnect the P/J41 connector from the PWB Drive (PL15.1.15).
3. Check the continuity for the following.
12 J11-29 <=> J41-12
J11-30 <=> J41-11
J11-31 <=> J41-10
J11-32 <=> J41-9
Is there continuity in all lines?
PWB Drive (PL15.1.15)
1. Replace the PWB Drive. (Refer to Ch4-4.2.18.5)
13
2. Turn On the power.
Does the problem still occur?
Troubleshooting
Check
Level 2 FIP
Treatment
Yes
Replace the Harness Assy Drive 1
Go to step 13.
(PL15.2.2).
Replace the PWBA MCU &
Problem solved.
HVPS. (Refer to Ch4-4.2.18.1)
Revision F
No
3-196