Epson AcuLaser C4000 Service Manual page 292

EPSON AcuLaser C4000/C4100/C3000
Step
Harness Assy Opepane (PL15.2.9) and Harness Assy Opepane BS (PL7.1.3)
1. Disconnect P/J22 connector from the PWBA MCU & HVPS (PL15.1.2). (Refer to Ch4-
4.2.18.1)
2. Disconnect P/J220 connector from the Control Panel (PL TBD).
3. Check the continuity for the following lines.
J22-1 <=> J221-1 <=> J2211-1
J22-2 <=> J221-2 <=> J2211-2
J22-3 <=> J221-3 <=> J2211-3
J22-4 <=> J221-4 <=> J2211-4
J22-5 <=> J221-5 <=> J2211-5
J22-6 <=> J221-6 <=> J2211-6
J22-7 <=> J221-7 <=> J2211-7
J22-8 <=> J221-8 <=> J2211-8
4
J22-9 <=> J221-9 <=> J2211-9
J22-10 <=> J221-10 <=> J2211-10
J22-11 <=> J221-11 <=> J2211-11
J22-12 <=> J221-12 <=> J2211-12
J22-13 <=> J221-13 <=> J2211-13
J22-14 <=> J221-14 <=> J2211-14
J22-15 <=> J221-15 <=> J2211-15
J22-16 <=> J221-16 <=> J2211-16
J22-17 <=> J221-17 <=> J2211-17
J22-18 <=> J221-18 <=> J2211-18
J22-19 <=> J221-19 <=> J2211-19
J22-20 <=> J221-20 <=> J2211-20
Is there continuity in all lines?
Control Panel (PL TBD)
1. Replace the Control Panel. (Refer to Ch4-4.2.4.1)
5
2. Turn on the power.
Do the keypad switches still not work?
PWB Controller (PL16.1.5)
1. Replace the PWB Controller. (Refer to Ch4-4.2.19.1)
6
2. Turn on the power.
Do the keypad switches still not work?
Troubleshooting
Check
Level 2 FIP
Treatment
Yes
Replace the harness with no
Go to step 5.
continuity.
Go to step 6. Problem solved.
Replace the PWBA MCU &
Problem solved.
HVPS. (Refer to Ch4-4.2.18.1)
Revision F
No
3-276