Epson AcuLaser C2800 - Page 122

AcuLaser C2800/C2800D/C3800/C3800D Revision C
TROUBLESHOOTING Engine-related Trouble FIP 122
Confidential
FIP 2-3 CLUTCH ASSY PH TURN
 Possible parts that caused the error
 Troubleshooting
FIP 2-4 CLUTCH ASSY PH FEED
 Possible parts that caused the error
 Troubleshooting
 CLUTCH ASSY PH TURN
 HARNESS ASSY R SIDE
 PWBA MCU
Step Check Yes No
1
Check the connection of the CLUTCH ASSY
PH TURN
Check the connection state between CLUTCH
ASSY PH TURN and PWBA MCU.
Are P/J23 and P/J234 connected correctly?
Go to Step [2]. Reconnect P/J23
and P/J234
correctly.
2
Check the continuity of the HARNESS ASSY
R SIDE
Is the continuity between P/J23 <=> P/J234
normal ?
Go to Step [3]. Replace the
HARNESS
ASSY R SIDE
3
Check the power voltage supply to CLUTCH
ASSY PH TURN
1. Close the interlock switch (HARNESS
ASSY INTERLOCK) before performing
the following work.
2. Measure the voltage between PWBA
MCU ground <=> P/J23-13PIN.
Is the power voltage (approx. +24 V) output?
Replace the
CLUTCH ASSY
PH TURN.
(p.253)
Replace the
PWBA MCU.
(p.343)
 CLUTCH ASSY PH FEED
 HARNESS ASSY R SIDE
 PWBA MCU
Step Check Yes No
1
Check the connection of the CLUTCH ASSY
PH FEED
Check the connection state between CLUTCH
ASSY PH FEED and PWBA MCU.
Are P/J23 and P/J235 connected correctly?
Go to Step [2]. Reconnect P/J23
and P/J235
correctly.
2
Check the continuity of the HARNESS ASSY
R SIDE
Is the continuity between P/J23 <=> P/J235
normal ?
Go to Step [3]. Replace the
HARNESS
ASSY R SIDE.
3
Check the power voltage supply to CLUTCH
ASSY PH FEED
1. Close the interlock switch (HARNESS
ASSY INTERLOCK) before performing
the following work.
2. Measure the voltage between PWBA
MCU ground <=> P/J23-15PIN.
Is the power voltage (approx. +24 V) output?
Replace the
CLUTCH ASSY
PH FEED.
(p.226)
Replace the
PWBA MCU.
(p.343)