Konica Minolta bizhub C250 Service Manual page 494

Field Service Ver. 3.0 Aug. 2006
16.5.32 C3302: Fusing Cooling Fan Motor /2's failure to turn
Fusing Cooling Fan Motor/2 (M13)
Step
Check the connector of motor for proper
1
connection and correct as necessary.
Check the fan for possible overload and
2
correct as necessary.
M13 operation check
3
4 Change PWB-M
16.5.33 C3451: Heat. Heater Trouble
16.5.34 C3452: Press. Heater Trouble
16.5.35 C3751: Abnormal High Temp. (Heater)
16.5.36 C3752: Abnormal High Temp. (Press)
16.5.37 C3851: Abnormal Low Temp. (Heater)
16.5.38 C3852: Abnormal Low Temp. (Press)
Fusing Unit
Step
Check the Fusing Unit for correct installa-
1
tion (whether it is secured in position).
Check the Fusing Unit, PWB-M and PU1
2 for proper connection and correct or
change as necessary.
3 Change Fusing Unit
4 Change PWB-M
5 Change PU1
Relevant Electrical Parts
Action
Relevant Electrical Parts
Action
Mechanical Control Board (PWB-M)
WIRING DIAGRAM
Control Signal
—
—
PWB-M CNDM1-14 (ON)
PWB-M CNDM1-17 (LOCK)
—
DC Power Supply (PU1)
Mechanical Control Board (PWB-M)
WIRING DIAGRAM
Control Signal
—
—
—
—
—
16. Malfunction code
Location (Electri-
cal Component)
—
—
L-1
—
Location (Electri-
cal Component)
—
—
—
—
—
451