Epson AcuLaser C1100 Service Manual page 215

EPSON AcuLaser C1100
Step Check
Continuity check of HARNESS ASSY MAIN
11
Disconnect P/J410 from PWBA MCU and P/
J502 from LV/HVPS.
Do all of the wiring below have normal
continuity?
J410-1 ↔ J502-1
J410-2 ↔ J502-2
J410-3 ↔ J502-3
J410-4 ↔ J502-4
J410-5 ↔ J502-5
J410-6 ↔ J502-6
J410-7 ↔ J502-7
J410-8 ↔ J502-8
Continuity check of HARNESS-ASSY DUP1
12
Disconnect P/J444 from PWBA DUP-L.
Do all of the wiring below have normal
continuity?
J444-11 ↔ J612-4
J444-12 ↔ J612-3
J444-13 ↔ J612-2
J444-14 ↔ J612-1
24 VDC power supply check to PWBA DUP-L
13
The voltage of P443-9/10 ↔ P443-11/12 on
PWBA DUP-L is 24 VDC?
Continuity check of HARNESS ASSY DUP2
14
Disconnect P/J443 from PWBA DUP-L.
Do all of the wiring below have normal
continuity?
J443-9 ↔ P607-4
J443-10 ↔ P607-3
J443-11 ↔ P607-2
J443-12 ↔ P607-1
TROUBLESHOOTING
Yes No
Replace LV/ Repair broken
HVPS. (p.407) or shorted part.
Go to Step [13]. Replace
HARNESS-
ASSY DUP1.
Replace PWBA Go to Step [14].
DUP-L. (p.442)
Go to Step [15]. Replace
HARNESS
ASSY DUP2.
FIP according to the printer message
Step Check
Continuity check of HARNESS ASSY MAIN
15
Disconnect the P/J420 from PWBA MCU.
Do all of the wiring below have normal
continuity?
J420-1 ↔ J607-12
J420-2 ↔ J607-11
J420-3 ↔ J607-10
J420-4 ↔ J607-9
24 VDC power supply check to PWBA MCU
16
The voltage of P410-5/6 ↔ P410-7/8 on
PWBA MCU is 24 VDC?
Continuity check of HARNESS ASSY MAIN
17
Disconnect P/J410 from PWBA MCU and P/
J502 from LV/HVPS.
Do all of the wiring below have normal
continuity?
J410-5 ↔ J502-5
J410-6 ↔ J502-6
J410-7 ↔ J502-7
J410-8 ↔ J502-8
Revision B
Yes No
Go to Step [16]. Repair broken
or shorted part.
Replace PWBA Go to Step [17].
MCU. (p.404)
Replace LV/ Repair broken
HVPS. (p.407) or shorted part.
215