Service manual

FrameMaker Ver.5.5E(PC) Di152/Di183 TROUBLESHOOTING
01.09.04
T- 3 3
(9) C0B80 Shift Motor malfunction
Relevant Electrical Parts
Shift Motor (OT-103: M1)
Home Sensor (OT-103: S31)
Main Board (OT-103: PWB-A)
Master Board (copier: PWB-A)
Step Check Result Action
1 Shift Motor (OT-103: M1) turns when
the Power Switch is turned ON.
NO • Change Shift Motor (OT-103: M1).
2 Exit Roller operates as the Shift
Motor (OT-103: M1) is energized.
NO • Reinstall motor unit.
3 Home Sensor (OT-103: S31) is oper-
ational.
<Check Procedure>
Check voltage across a Main Board
(OT-103: PWB-A) pin and GND when
the sensor is blocked.
• Voltage across PJ3A-3 and GND
DC5 V when blocked
DC0 V when unblocked
NO • Change Home Sensor (OT-103:
S31).
YES • Change Master Board (copier:
PWB-A).
S31 ON
S31 ANODE
PJ3A
PWB-A
Master
Board
OT-103
PWB-A
Main Board
Not Use
OT
Shift Motor
Home Sensor
CN55
PJ58
S31
4022T536AA