Epson AcuLaser C2800 Service Manual page 129

AcuLaser C2800/C2800D/C3800/C3800D
FIP 2-14 DRIVE ASSY OPT FDR
Possible parts that caused the error
DRIVE ASSY OPT FDR
HARNESS ASSY C2 TURN
HARNESS ASSY FDR UNIT
Troubleshooting
Step Check
Check the connection of the DRIVE ASSY
1
OPT FDR
Check the connection state between DRIVE
ASSY OPT FDR and PWBA FEED-H.
Are P/J422 and P/J4222 connected correctly?
Check the continuity of the HARNESS ASSY
2
C2 MOT
Is the continuity between P/J422 <=> P/J4222
normal?
Check the power voltage supply to DRIVE
3
ASSY OPT FDR
1. Close the interlock switch (HARNESS
ASSY INTERLOCK) before performing
the following work.
2. Measure the voltage between PWBA
FEED-H ground <=> P/J422-6PIN.
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/J422
and P/J4222
correctly.
Go to Step [3]. Replace the
HARNESS
ASSY C2 MOT.
Replace the Go to Step [4].
DRIVE ASSY
OPT FDR.
(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)
129
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