Epson AcuLaser C2800 - Page 129

AcuLaser C2800/C2800D/C3800/C3800D Revision C
TROUBLESHOOTING Engine-related Trouble FIP 129
Confidential
FIP 2-14 DRIVE ASSY OPT FDR
 Possible parts that caused the error
 Troubleshooting
 DRIVE ASSY OPT FDR
 HARNESS ASSY C2 TURN
 HARNESS ASSY FDR UNIT
 HARNESS ASSY R SIDE
 PWBA FEED-H
 PWBA MCU
Step Check Yes No
1
Check the connection of the DRIVE ASSY
OPT FDR
Check the connection state between DRIVE
ASSY OPT FDR and PWBA FEED-H.
Are P/J422 and P/J4222 connected correctly?
Go to Step [2]. Reconnect P/J422
and P/J4222
correctly.
2
Check the continuity of the HARNESS ASSY
C2 MOT
Is the continuity between P/J422 <=> P/J4222
normal?
Go to Step [3]. Replace the
HARNESS
ASSY C2 MOT.
3
Check the power voltage supply to DRIVE
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?
Replace the
DRIVE ASSY
OPT FDR.
(p.370)
Go to Step [4].
4
Check the connection between PWBA
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?
Go to Step [5]. Reconnect
P/J419, P/J273,
and P/J27
correctly.
5
Check the continuity of the HARNESS ASSY
FDR UNIT
Is the continuity between P/J419 <=> P/J273
normal?
Go to Step [6]. Replace the
HARNESS
ASSY FDR
UNIT.
Step Check Yes No
6
Check the continuity of the HARNESS ASSY
R SIDE
Is the continuity between P/J27 <=> P/J273
normal ?
Go to Step [7]. Replace the
HARNESS
ASSY R SIDE.
7
Check the power voltage supply to PWBA
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?
Replace the
PWBA FEED-H.
(p.370)
Replace the
PWBA MCU.
(p.343)