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H3-184
MAINTENANCE 3. TROUBLESHOOTING
006-252-05
06.30.01 FM3040
FM-DP L
Service Manual
H3-184
Power OFF
FP3F0E46.EPS
Y
Are FANG1/FANG2 normal?
Check at [Fan Operation] of
[Heat Developper] of M-Utility.
N
Replace thermistor.
Does error occur again?
Y
N
Is thermistor normal?
Measure resistance between both
terminals of thermistor.
Refer to "3.5 Trouble shooting
Reference".
Y
Is thermistor normal?
Check that heater temperature rises at
[Temperature] of [Heat Developper]
of M-Utility.
N
Y
Are cables of thermistor normal?
Check connector connection, cable
conduction, and connector pins.
Check again.
Repair or replace.
N
Replace SNS11A
board.
Replace DRV11A
board.
Replace fan.
Y
N
Is current conducted between both
terminals of fan?
Repair or replace.
Y
Are cables to fan normal?
Check connector connection, cable
conduction, and connector pins.
N
N
3
Y
2
3
3
Power ON
Check error generation state.
Check error details at [Error Log Data]
of M-Utility.
Y
2
Power OFF
N
Is +24VA voltage output normally?
Refer to "3.5 Troubleshooting
Reference".
Recover NFB.
For direct-bonded fuse,
replace the DRV11A board.
Y
Are NFB of power supply unit and
NFB9 of DRV11A board normal?
Refer to "3.5 Troubleshooting
Reference".
N
Y
Are cables normal?
Check connector connection, cable
conduction, and connector pins.
Repair or replace.
N
Replace power supply unit.