Epson AcuLaser C2800 - Page 131

AcuLaser C2800/C2800D/C3800/C3800D Revision C
TROUBLESHOOTING Engine-related Trouble FIP 131
Confidential
FIP 2-16 CLUTCH DUP
 Possible parts that caused the error
 Troubleshooting
 CLUTCH DUP
 HARNESS ASSY DUP UNIT
 HARNESS ASSY FRONT COVER
 HARNESS ASSY R SIDE
 PWBA DUP
 PWBA MCU
Step Check Yes No
1
Check the connection of the CLUTCH DUP
Check the connection state between CLUTCH
DUP and PWBA DUP.
Is P/J431 connected correctly?
Go to Step [2]. Reconnect P/J431
correctly.
2
Check the power voltage supply to CLUTCH
DUP
1. Close the interlock switch (HARNESS
ASSY INTERLOCK) before performing
the following work.
2. Measure the voltage between PWBA
DUP ground <=> P/J431-1PIN.
Is the power voltage (approx. +24 V) output?
Replace the
CLUTCH DUP.
(p.349)
Go to Step [3].
3
Check the connection between PWBA DUP
and PWBA MCU
Check the connection state between PWBA
DUP and PWBA MCU.
Are P/J428, P/J2720, P/J272, and P/J27
connected correctly?
Go to Step [4]. Reconnect
P/J428, P/J2720,
P/J272, and P/J27
correctly.
4
Check the continuity of the HARNESS ASSY
DUP UNIT
Is the continuity between P/J428 <=> P/J2720
normal?
Go to Step [5]. Replace the
HARNESS
ASSY DUP
UNIT.
5
Check the continuity of the HARNESS ASSY
FRONT COVER
Is the continuity between P/J2720 <=> P/J272
normal?
Go to Step [6]. Replace the
HARNESS
ASSY FRONT
COVER.
Step Check Yes No
6
Check the continuity of the HARNESS ASSY
R SIDE
Is the continuity between P/J27 <=> P/J272
normal ?
Go to Step [7]. Replace the
HARNESS
ASSY R SIDE.
7
Check the power voltage supply to PWBA
DUP
1. Close the interlock switch (HARNESS
ASSY INTERLOCK) before performing
the following work.
2. Measure the voltage between PWBA
MCU ground <=> P/J27-A17, A18PIN.
Is the power voltage (approx. +24 V) output?
Replace the
PWBA DUP.
(p.349)
Replace the
PWBA MCU.
(p.343)