Minolta Di251 - Page 338

FrameMaker Ver.5.5(PC) Di251/Di351 TROUBLESHOOTING
05.03.01
T- 4 0
C0650,C0651
Step Check Result Action
1 Scanner Motor operation check: Select func-
tions in the following order: Tech. Rep. Mode
→
Movement Check → Scanner; set “+1000” in
“Relative Position” and touch “Set”; the Scan-
ner moves at this time.
YES Check step 3 and onward.
2 The Scanner can be moved manually. YES Change Scanner Motor.
Change BCR Board.
Change MFB2 Board.
Change Master Board.
NO Correct drive coupling.
3 “C0651” is displayed. YES Check step 7 and onward.
4 Scanner Home Position Sensor 1 operation
check through I/O check
YES Check to see if Scanner
Home Position Sensor 1 is
blocked as the Scanner is
moved. If it is checked
okay, change Master
Board.
5 Scanner Home Position Sensor 1 operation
check: the voltage across CN11BCR-1 on BCR
Board and GND is DC0 V when the sensor is
blocked and DC5 V when the sensor is
unblocked.
NO Change Scanner Home
Position Sensor 1.
6 Scanner Home Position Sensor 1 operation
check: the voltage across CN1BCR-26 on BCR
Board and GND is DC0 V when the sensor is
blocked and DC5 V when the sensor is
unblocked.
YES Change BCR Board.
NO Change MFB2 Board.
Change Master Board.
7 Scanner Home Position Sensor 2 operation
check through I/O check
YES Check to see if Scanner
Home Position Sensor 2 is
blocked as the Scanner is
moved. If it is checked
okay, change Master
Board.
8 Scanner Home Position Sensor 2 operation
check: the voltage across CN12BCR-1 on BCR
Board and GND is DC0 V when the sensor is
blocked and DC5 V when the sensor is
unblocked.
NO Change Scanner Home
Position Sensor 2.
9 Scanner Home Position Sensor 2 operation
check: the voltage across CN1BCR-27 on BCR
Board and GND is DC0 V when the sensor is
blocked and DC5 V when the sensor is
unblocked.
YES Change BCR Board.
NO Change MFB2 Board.
Change Master Board.