E2-06 Optional Lcc Lift Operation (Up); E2-07 Optional Lcc Lift Operation (Down) - Panasonic FP-7742 Service Manual

E2-06: Optional LCC lift operation (UP)
E2-07: Optional LCC lift operation (DOWN)
When the lift motor drives up and down, the upper and lower limit switch
are not detected within a predetermined time.
Is lift motor sound detected?
NO
Does PLMCT6 change "H" to "L"
when the lift motor is turned ON?
NO
E2-10: System console motor rotation
When the system console main motor drives an abnormal signal is detected.
Does the main motor rotate by hand?
YES
Is DC24V detected on CN-1, 2 ?
YES
Does the CN602-7 signal change "H"
to "L" when the main motor drives?
NO
YES Check the upper limit sensor signal.
Canged: CPU PCB is defective.
Not changed: Limit sensor is defective.
YES Lift motor drive mechanism is defective.
Lift motor is defective.
LCC driver PCB is defective.
Check the lower limit sensor signal.
Changed: CPU PCB is defective.
Not changed: Limit sensor is defective.
Copier CPU PCB is defective.
NO Main motor drive mechanism is defective.
Locking mechanism of motor is defective.
NO Check DC24V on CN602-3 and 4.
YES: Connector is shorted or
broken.
NO: Check CN602-3 and 4 of system console
driver PCB.
YES Main motor is defective.
System console driver PCB is defective.
Copier CPU PCB is defective.
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