Konica Minolta PF-124 Service Manual page 28

Step
Does the input signal of the control board change from
H to L when the motor is turned on?
1
(Input signals differ according to the direction of rota-
tion)
Step
Are the relay connector of the motor and the print jack
1
of the control board correctly connected?
Check
Check
T-4
Result Action
YES Replace the motor.
Replace the con-
NO
trol board.
4025T525AA
Result Action
Replace the motor
YES or the control
board.
Connect the con-
NO nector or the print
jack.
4025T527AA