Epson AcuLaser C4000 Service Manual page 150

EPSON AcuLaser C4000/C4100/C3000
Step
Harness Assy EEPROM (PL15.2.10) continuity check
1. Disconnect the P/J140 connector from the PWBA MCU & HVPS. (Refer to Ch4-4.2.18.1)
2. Check the continuity for the following lines.
12
J140-2 <=> J71-5
J140-3 <=> J71-4
Is the continuity between P140 <=> J71 normal?
PWBA MCU & HVPS (PL15.1.2)
1. Replace the PHD Assy with a new part.
13
2. Turn on the power.
Does the error still occur?
Troubleshooting
Check
Level 2 FIP
Treatment
Yes
Replace the Harness Assy
Go to step 13.
EEPROM.
Go to FIP-Noise (Page 5-281). Problem solved.
Revision F
No
3-134