Minolta CF910 Service Manual page 403

8. C3090 (M14's Failure to Turn)
• Fusing Unit Cooling Fan Motor M14
• Power Supply Board PWB-L
Step
1 Does M14 turn when the Start key is
pressed?
2 Is PJ9L-4 on PWB-L outputting DC24V?
3 Does the voltage across PJ10I-7B on
PWB-I and GND remain DC5V when the
Start key is pressed?
Possible Defective Components
Check Item
T-37
• Master Board PWB-I
1154C24TAA
Result
YES Check rollers, gears, etc. for
overload.
NO Change PWB-L.
YES Change M14.
NO Change PWB-I.
Action