Epson AcuLaser C4000 Service Manual page 228

EPSON AcuLaser C4000/C4100/C3000
Step
PWB Drive (PL15.1.15) continuity
1. Disconnect the P/J42 connector from the PWB Drive.
8
2. Measure the voltage between P47-7 <=> P42-19.
Is there continuity between P47-7 <=> P42-19?
Harness Assy DRV 2 (PL15.2.3) continuity
1. Disconnect the P/J12 connector from the PWBA MCU & HVPS. (Refer to Ch4-4.2.18.1)
9
2. Check the continuity between P42-19 <=> J12-12.
Is there continuity between P42-19 <=> J12-12?
PWB Drive (PL15.1.15) continuity
1. Disconnect the P/J61 connector from the PWB Drive.
10
2. Check the continuity between P47-5 <=> P61-6.
Is there continuity between P47-5 <=> P61-6?
Harness Assy LVNC (PL15.2.1) continuity
1. Disconnect the P/J165 connector from the LVPS (PL15.1.10).
11
2. Check the continuity between J61-6 <=> J1165-3.
Is there continuity between J61-6 <=> J1165-3?
Troubleshooting
Check
Level 2 FIP
Treatment
Yes
Replace the PWB Drive. (Refer
Go to step 9.
to Ch4-4.2.18.5)
Replace the PWBA MCU & Replace the Harness Assy DRV 2
HVPS. (Refer to Ch4-4.2.18.1) (PL15.2.3).
Replace the PWB Drive.
Go to step 11.
(Refer to Ch4-4.2.18.5)
Replace the Harness Assy
Go to FIP-DC (Page 5-280).
LVNC (PL15.2.1).
Revision F
No
3-212