Minolta Di450 Service Manual page 470

C0998
Step
1 I/O check for Shifter Return Position Sensor
operation: the voltage across PJ7A-7A on Con-
trol Board and GND is DC5V (sensor
unblocked) and DC0V (sensor blocked).
2 I/O check for Shifter Home Position Sensor
operation: the voltage across PJ7A-8A on Con-
trol Board and GND is DC5V (sensor
unblocked) and DC0V (sensor blocked).
C099C
Step
1
Shift Motor turns when the 3
with paper loaded on the Shift Tray (paper is
moved to the Main Tray).
2 Shift Motor rotation: the voltage across PJ7A-
4B on Control Board and GND is DC0V (motor
deenergized) and DC24V (motor energized) in
step 1.
3 I/O check for Shift Motor Pulse Sensor opera-
tion: the voltage across PJ7A-3A on Control
Board and GND changes in the range between
DC0V and DC5V while the Shift Motor is turn-
ing.
Check
Check
rd
Drawer is slid in
T-62
Result Action
YES Change Control Board.
NO Change sensor or Cabinet
Transport Board.
Change flat cable.
YES Change Control Board.
NO Change sensor or Cabinet
Transport Board.
Change flat cable.
Result Action
NO Correct drive coupling.
YES Change motor or Cabinet
Transport Board.
Change flat cable.
NO Change Control Board.
YES Change Control Board.
NO Correct drive coupling.
Change sensor.