Epson AcuLaser C4000 Service Manual page 311

EPSON AcuLaser C4000/C4100/C3000
Step
PWBA Feeder (PL17.4.1) continuity
1. Disconnect the P/J81 and P/J83 connectors of the PWBA Feeder.
8
2. Check the continuity between P81-19 <=> P83-10.
Is there continuity between P81-19 <=> P83-10?
Harness Assy OPF PLG (PL17.4.2), Harness Assy OPFREC (PL4.2.9) and Harness Assy
OPF Main (PL15.2.8) continuity check
1. Disconnect the P/J21 connector from the PWBA MCU & HVPS. (Refer to Ch4-4.2.18.1)
2. Disconnect the P/J81 connector from the PWBA Feeder (PL17.4.1).
9
3. Check the continuity for the following lines.
J81-17 <=> J810-A10/P810-A5 <=> J210-B10/P210-B4 <=> J21-10
Is there continuity between each terminal?
PWBA Feeder (PL17.4.1) continuity
1. Disconnect the P/J81 and P/J83 connectors of the PWBA Feeder.
10
2. Check the continuity between P83-8 <=> P81-24.
Is there continuity between P83-8 <=> P81-24?
Harness Assy OPF PLG (PL17.4.2), Harness Assy OPFREC (PL4.2.9) and Harness Assy
OPF Main (PL15.2.8) continuity check
1. Disconnect the P/J21 connector from the PWBA MCU & HVPS. (Refer to Ch4-4.2.18.1)
2. Disconnect the P/J81 connector from the PWBA Feeder (PL17.4.1).
11
3. Check the continuity for the following lines.
J81-24 <=> J810-A3/P810-A12 <=> J210-B3/P210-B11 <=> J21-3
Is there continuity between each terminal?
Troubleshooting
Check
Level 2 FIP –Large Capacity Paper Unit–
Treatment
Yes
Replace the PWBA Feeder.
Go to step 9.
(Refer to Ch4-4.2.20.10)
Replace the PWBA MCU & Replace any Harness Assy with
HVPS. (Refer to Ch4-4.2.18.1) no continuity.
Replace the PWBA Feeder.
Go to step 11.
(Refer to Ch4-4.2.20.10)
Replace the PWBA MCU & Replace any Harness Assy with
HVPS. (Refer to Ch4-4.2.18.1) no continuity.
Revision F
No
3-295