Epson AcuLaser C2800 Service Manual page 110

AcuLaser C2800/C2800D/C3800/C3800D
FIP 1-32 Service Req E998 (Engine communication error)
Possible parts that caused the error
HARNESS ASSY ESS
BOARD ASSY, MAIN
Troubleshooting
Step Check
Check the firmware version of the PWBA
1
MCU
Check the firmware version of the PWBA
MCU. Is the version latest?
Check the firmware version of the BOARD
2
ASSY, MAIN
Check the firmware version of the BOARD
ASSY, MAIN. Is the version latest?
Check the continuity of HARNESS ASSY
3
ESS
1. Disconnect P10 on the PWBA MCU.
2. Disconnect the CN601 on the BOARD
ASSY, MAIN
3. Check each wiring for continuity.
Do all of the wiring have normal continuity?
Replace the BOARD ASSY, MAIN
4
Replace the BOARD ASSY, MAIN.
Does the error still occur after the replacement?
TROUBLESHOOTING
PWBA MCU
Yes No
Go to Step [2]. Update the
firmware and go
to step [2].
Go to Step [3]. Update the
firmware.
Go to Step [4]. Replace the
HARNESS
ASSY ESS.
Replace the End of procedure
PWBA MCU.
(p.343)
Engine-related Trouble FIP
FIP 1-33 DM Error 002
Possible parts that caused the error
HARNESS ASSY DUP UNIT
HARNESS ASSY FRONT COVER
HARNESS ASSY R SIDE
Troubleshooting
Step Check
Check the connection of the PWBA DUP
1
Check the connection state between PWBA
DUP and PWBA MCU.
Are P/J127, P/J272, P/J2720, and P/J428
connected correctly?
Check the continuity of the HARNESS ASSY
2
DUP UNIT
Is the continuity between P/J428 <=> P/J2720
normal?
Check the continuity of the HARNESS ASSY
3
FRONT COVER
Is the continuity between P/J2720 <=> P/J272
normal?
Check the continuity of the HARNESS ASSY
4
R SIDE
Is the continuity between P/J272 <=> P/J27
normal?
Check after replacing the PWBA DUP
5
Replace the PWBA DUP with a new one.
(p.349)
Does the error still occur after the replacement?
Revision C
PWBA DUP
PWBA MCU
Yes No
Go to Step [2]. Reconnect
P/J127, P/J272,
P/J2720, and
P/J428 correctly.
Go to Step [3]. Replace the
HARNESS
ASSY DUP
UNIT.
Go to Step [4]. Replace the
HARNESS
ASSY FRONT
COVER.
Go to Step [5]. Replace the
HARNESS
ASSY R SIDE.
Replace the End of procedure
PWBA MCU.
(p.343)
110
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