Epson AcuLaser C2800 Service Manual page 127

AcuLaser C2800/C2800D/C3800/C3800D
FIP 2-12 CLUTCH ASSY TURN OPT (550 PAPER FEEDER)
Possible parts that caused the error
CLUTCH ASSY TURN OPT
HARNESS ASSY C2 TURN
HARNESS ASSY FDR UNIT
Troubleshooting
Step Check
Check the connection of the CLUTCH ASSY
1
TURN OPT
Check the connection state between CLUTCH
ASSY TURN OPT and PWBA FEED-H.
Are P/J420 and P/J4201 connected correctly?
Check the continuity of the HARNESS ASSY
2
C2 TURN
Is the continuity between P/J420 <=> P/J4201
normal?
Check the power voltage supply to CLUTCH
3
ASSY TURN OPT
1. Close the interlock switch (HARNESS
ASSY INTERLOCK) before performing
the following work.
2. Measure the voltage between PWBA
FEED-H ground <=> P/J420-1PIN.
Is the power voltage (approx. +24 V) output?
Check the connection between PWBA
4
FEED-H and PWBA MCU
Check the connection state between PWBA
FEED-H and PWBA MCU.
Are P/J419, P/J273, and P/J27 connected
correctly?
Check the continuity of the HARNESS ASSY
5
FDR UNIT
Is the continuity between P/J419 <=> P/J273
normal?
TROUBLESHOOTING
HARNESS ASSY R SIDE
PWBA FEED-H
PWBA MCU
Yes No
Go to Step [2]. Reconnect P/J420
and P/J4201
correctly.
Go to Step [3]. Replace the
HARNESS
ASSY C2 TURN.
Replace the Go to Step [4].
CLUTCH ASSY
TURN OPT.
(p.370)
Go to Step [5]. Reconnect
P/J419, P/J273,
and P/J27
correctly.
Go to Step [6]. Replace the
HARNESS
ASSY FDR
UNIT.
Engine-related Trouble FIP
Step Check
Check the continuity of the HARNESS ASSY
6
R SIDE
Is the continuity between P/J27 <=> P/J273
normal?
Check the power voltage supply to PWBA
7
FEED-H
1. Close the interlock switch (HARNESS
ASSY INTERLOCK) before performing
the following work.
2. Measure the voltage between PWBA
MCU ground <=> P/J27-B4, B5PIN.
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 FEED-H. PWBA MCU.
(p.370) (p.343)
127
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