Motor Section - Panasonic UF-5500 Service Manual

UF-5500 / 4500

11.2.13. Motor Section

11.2.13.1. Engine Motor
Engine MOTOR
Does MOTOR rotate to clockwise
manually ?
YES
Check Pin1 & 2 of CN1on Motor.
Is 24V supplied?
YES
Check Pin6 of CN1on Motor.
Is the signal Low ?
YES
Check Pin7 of CN1on Motor.
Is the pulse signal supplied ?
YES
Check Pin8 of CN1on Motor.
Is the signal Low ?
YES
Check Pin5 of CN1on Motor.
Is the signal Low ?
NO
Replace Motor
NO
Check Mechanical Torque. OK?
Check Mechanical parts
such as Drum Unit and Fuser.
NO
Check voltage of Pin1, 2 of CN502 . OK?
Check soldering of L507. OK?
Check Power supply or Power supply Harness
NO
Check the voltage of Pin6 of CN502 .
Is the signal "L" ?
Check soldering of Q502. OK?
Is the level of Q502 base "H" ?
Replace IC300
NO
Check Pin7 of CN502.
Is the pulse signal generated ?
Check soldering of Q525. OK?
Is the status of Q525 base "pulse" ?
Replace IC300
NO
Check the voltage of Pin8 of CN502.
Is the signal Low ?
Check soldering of Q526. OK?
Is the level of Q526 base "H" ?
Replace IC300
YES
Check soldering of R512,515, OK?
174
NO
NO
YES
NO
YES
NO
NO
YES
NO
NO
YES
NO
NO
Repair
YES
Replace Motor
YES
Replace Harness
NO
Repair
YES
Replace Harness
or Motor
NO
Repair
YES
Replace Q502
YES
Replace Harness
or Motor
NO
Repair
YES
Replace Q525
YES
Replace Harness
or Motor
NO
Repair
YES
Replace Q526
YES
Replace Harness
or Motor