Epson AcuLaser CX11 Service Manual page 196

EPSON AcuLaser CX11/CX11F
Step Check
Continuity check of HARNESS ASSY 2BTR
12
SENS
Disconnect P/J620 from HARNESS ASSY
2BTR SENS.
Do all of the wiring below have normal
continuity?
P620-1 ↔ J111-3
P620-2 ↔ J111-2
P620-3 ↔ J111-1
Shape and operation check of CAM ASSY-
13
2ND
Does CAM ASSY 2ND move smoothly
without any damage, and does it enter the
sensor sensing area?
Operation check of SENSOR 2BTR
14
RETRACT
Remove 2ND BTR ASSY. (p.374)
The voltage of P418-6 ↔ P418-5 on PWBA
MCU is 0 VDC when Actuator of CAM ASSY-
2ND enters the sensing area of SENSOR 2BTR
RETRACT, and is 5 VDC when it leaves the
sensing area?
5 VDC power supply check to SENSOR
15
2BTR RETRACT
Disconnect P/J418 from PWBA MCU.
The voltage of P418-4 ↔ P418-5 on PWBA
MCU is 5 VDC?
Continuity check of HARNESS ASSY ADC
16
Disconnect P/J418 from PWBA MCU.
Do all of the wiring below have normal
continuity?
J418-4 ↔ J112-3
J418-5 ↔ J112-2
J418-6 ↔ J112-1
17 5 VDC power supply check to PWBA MCU
The voltage of P410-3 ↔ P410-4 on PWBA
MCU is 5 VDC?
TROUBLESHOOTING
Yes No
Replace Replace
SENSOR HARNESS
FUSER IN. ASSY 2BTR
(p.369) SENS.
Go to Step [14]. Replace CAM
ASSY-2ND.
(p.376)
Go to Step [19]. Go to Step [15].
Go to Step [16]. Go to Step [17].
Replace Replace
SENSOR 2BTR HARNESS
RETRACT. ASSY ADC.
(p.382)
Replace PWBA Go to Step [18].
MCU. (p.432)
Printer
manuals4you.com manuals4you.com
Step Check
Continuity check of HARNESS ASSY MAIN
18
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
Continuity check of HARNESS ASSY MAIN
19
Disconnect the P/J403 from PWBA MCU.
Do all of the wiring below have normal
continuity?
J403-1 ↔ J600-3
J403-2 ↔ J600-2
J403-3 ↔ J600-1
24 VDC power supply check to MOT ASSY
20
MICRO (2nd BTR Retract Motor)
The voltage of P403-3 ↔ P403-2 on PWBA
MCU is 24 VDC?
Check after replacement of MOT ASSY
21
MICRO
Replace MOT ASSY MICRO. (p.427)
Does the error recur when a test print is made?
24 VDC power supply check to PWBA MCU
22
The voltage of P410-5/6 ↔ P410-7/8 on
PWBA MCU is 24 VDC?
Continuity check of HARNESS ASSY MAIN
23
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
Replace LV/ Repair broken or
HVPS. (p.435) shorted part.
Go to Step [20]. Repair broken or
shorted part.
Go to Step [21]. Go to Step [22].
Replace PWBA End of procedure
MCU. (p.432)
Replace PWBA Go to Step [23].
MCU. (p.432)
Replace LV/ Repair broken or
HVPS. (p.435) shorted part.
198