Canon LBP-1260, Руководство по обслуживанию

Страница: 187 / 218

6
M 24 “SF-52 SERVICE” Message
cause Step Check Procedure
1
Is connector 5208 on the DC controller NO
PCB contact?
Reconnect the connector.
Power supply Does the voltage between connectors
the DC controller PCB become about
24
NO
Check whether VDC is
present between connectors
l-4 and
on the DC
controller PCB. If It is not,
replace the power supply.
Laser/scanner 3
unit
Perform a test print. Does the voltage
between connectors
and on the DC
controller PCB change from about 5
Replace the
unit.
Replace the DC controller
PCB.
DC controller
PCB
NO
M 25 “SF-54 SERVICE” Message
Possible cause Step Check Result
Procedure
driver PCB
NO
Reconnect the connectors. Are connector 14 on the DC
controller PCB and connector 5131 of
the
motor making good contact?
Door on the pick-up
motor is turned ON.
Is there continuity between connector
and
on the DC controller
NO
Replace the pick-up motor
PCB.
YES
Main motor 3 About one second after the power
switch is turned ON, does the voltage
between connectors 1
and change from about
the main motor.
NO
Replace the DC controller
6-41