EPSON AcuLaser CX11/CX11F Revision B
TROUBLESHOOTING Printer 209
FIP-41
 Panel Message
îš„ Service Req E527
 Possible parts that caused the error
 Troubleshooting
îš„ MOTOR ASSY MAG îš„ SENSOR ROTARY HOME POSI
îš„ HARNESS ASSY MAIN îš„ PWBA MCU
îš„ LV/HVPS
Step Check Yes No
1
Check of FRAME ASSY-ROTARY and
MOTOR ASSY MAG attachment
Are FRAME ASSY-ROTARY and MOTOR
ASSY MAG attached correctly?
Go to Step [2]. Re-attach, and go
to step [2].
2
Rotation check of FRAME ASSY-ROTARY
and MOTOR ASSY MAG
Do FRAME ASSY-ROTARY and MOTOR
ASSY MAG rotate smoothly?
Turn by hand to check.
Go to Step [3]. Remove any
items that hinder
rotation.
3
Check of SENSOR ROTARY HOME POSI
attachment
Is SENSOR ROTARY HOME POSI attached
correctly?
Go to Step [4]. Re-attach, and go
to step [4].
4
Operation check of SENSOR ROTARY
HOME POSI
The voltage of P413-7 ↔ P413-6 on PWBA
MCU is 0 VDC when FRAME ASSY
ROTARY enters the sensing area, and is 5
VDC when it leaves the sensing area?
Replace PWBA
MCU. (p.432)
Go to Step [5].
5
5 VDC power supply check to SENSOR
ROTARY HOME POSI
The voltage of P413-5 ↔ P413-6 on PWBA
MCU is 5 VDC?
Go to Step [6]. Go to Step [7].
6
Continuity check of HARNESS ASSY MAIN
Disconnect P/J413 from PWBA MCU.
Do all of the wiring below have normal
continuity?
J413-5 ↔ J105-3
J413-6 ↔ J105-2
J413-7 ↔ J105-1
Replace
SENSOR
ROTARY
HOME POSI.
(p.409)
Repair broken or
shorted part.
7
5 VDC power supply check to PWBA MCU
The voltage of J410-3 ↔ J410-4 on PWBA
MCU is 5 VDC?
Replace PWBA
MCU. (p.432)
Go to Step [8].
8
Continuity check of HARNESS ASSY MAIN
Disconnect P/J410 from PWBA MCU and P/
J502 from LV/HVPS.
Do all of the wiring below have normal
continuity?
J410-3 ↔ J502-3
J410-4 ↔ J502-4
Replace LV/
HVPS. (p.435)
Repair broken or
shorted part.
Step Check Yes No
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