Epson AcuLaser C2800 Service Manual page 131

AcuLaser C2800/C2800D/C3800/C3800D
FIP 2-16 CLUTCH DUP
Possible parts that caused the error
CLUTCH DUP
HARNESS ASSY DUP UNIT
HARNESS ASSY FRONT COVER
Troubleshooting
Step Check
Check the connection of the CLUTCH DUP
1
Check the connection state between CLUTCH
DUP and PWBA DUP.
Is P/J431 connected correctly?
Check the power voltage supply to CLUTCH
2
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?
Check the connection between PWBA DUP
3
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?
Check the continuity of the HARNESS ASSY
4
DUP UNIT
Is the continuity between P/J428 <=> P/J2720
normal?
Check the continuity of the HARNESS ASSY
5
FRONT COVER
Is the continuity between P/J2720 <=> P/J272
normal?
TROUBLESHOOTING
HARNESS ASSY R SIDE
PWBA DUP
PWBA MCU
Yes No
Go to Step [2]. Reconnect P/J431
correctly.
Replace the Go to Step [3].
CLUTCH DUP.
(p.349)
Go to Step [4]. Reconnect
P/J428, P/J2720,
P/J272, and P/J27
correctly.
Go to Step [5]. Replace the
HARNESS
ASSY DUP
UNIT.
Go to Step [6]. Replace the
HARNESS
ASSY FRONT
COVER.
Engine-related Trouble FIP
Step Check
Check the continuity of the HARNESS ASSY
6
R SIDE
Is the continuity between P/J27 <=> P/J272
normal?
Check the power voltage supply to PWBA
7
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?
Revision C
Yes No
Go to Step [7]. Replace the
HARNESS
ASSY R SIDE.
Replace the Replace the
PWBA DUP. PWBA MCU.
(p.349) (p.343)
131
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