Minolta Di251 - Page 340

FrameMaker Ver.5.5(PC) Di251/Di351 TROUBLESHOOTING
05.03.01
T- 4 2
C0990
C0991
C0995
Step Check Result Action
1 The voltage across CN1A-15 on LCC Control
Board and GND is DC24 V.
YES Change LCC Lift-Up
Motor.
Change LCC Control
Board.
Change Control Board.
Change Master Board.
2 Fuse is conducting. YES Change Power Supply
Unit.
NO Change fuse.
Step Check Result Action
1 Lift-Up Sensor 1 operation check through I/O
check
YES Check step 3 and onward.
2 Lift-Up Sensor 1 operation check: the voltage
across CN4A-6 on LCC Control Board and
GND is DC5 V when the sensor is blocked and
DC0 V when the sensor is unblocked.
YES Change LCC Control
Board.
Change Control Board.
Change Master Board.
NO Check actuator.
Change Lift-Up Sensor 1.
3 LCC Lift-Up Motor operation check: LCC Lift-
Up Motor turns after the cassette has been slid
into the copier.
YES Change Master Board.
4 LCC Lift-Up Motor operation check: the voltage
across CN5A-1 on LCC Control Board and
GND changes from DC0 V to DC24 V while
step 3 is being performed.
YES Change LCC Lift-Up
Motor.
NO Change LCC Control
Board.
Change Control Board.
Change Master Board.
Step Check Result Action
1 The voltage across CN1A-15 on LCC Control
Board and GND is DC24 V.
YES Change LCC Transport
Motor.
Change LCC Control
Board.
Change Control Board.
Change Master Board.
2 Fuse is conducting. YES Change Power Supply
Unit.
NO Change fuse.