C0B80:Shift Motor (M8-Fn) Drive Malfunctions - Konica Minolta FS-501 Service Manual

FS-501 Field Service Ver2.0 Sep. 2004
2.3.6

C0B80:Shift Motor (M8-FN) drive malfunctions

A. Detection timing
Malfunction code
The Shift Home Position Sensor (PC10-FN) does not go HIGH even after the lapse
of a given period of time after M8-FN has been energized (to start returning the
Elevator Tray to its home position).
C0B80
The Shift Home Position Sensor (PC10-FN) does not go LOW even after the lapse
of a given period of time after M8-FN has been energized (to start moving the Ele-
vator Tray for job offset).
B. Action
Shift Home Position Sensor (PC10-FN)
Shift Motor Pulse Sensor (PC11-FN)
Shift Motor (M8-FN)
Step
Check the motor and sensor connectors
1 for proper connection, and correct as
necessary.
Check the connector of motor for proper
2 drive coupling, and correct as neces-
sary.
3 PC10-FN I/O, sensor check
4 PC11-FN I/O, sensor check
5 M8-FN operation check
6 PWB-A FN replacement
Relevant electrical parts
Action
Description
Control Board (PWB-A FN)
WIRING DIAGRAM
Control signal
-
-
PWB-A FN PJ25A FN-12
PWB-A FN PJ25A FN-14
PWB-A FN PJ5A FN-3,4
-
Trouble code
Location
(Electrical compo-
nents)
-
-
H-2
H-2
D-2
E-5
4-13