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February 2002 © TOSHIBA TEC 4 - 21 FC-210/310 TROUBLESHOOTING
4.1.9 Drive system related service call
[C05] ADU motor rotation abnormal
Is the ADU motor rotating properly?
1. Check if the harness between the LGC board and the ADU drawer connector is
open-circuited.
2. Check if the harness between the switching power supply and the ADU drawer
connector is open-circuited.
3. Check if any of the connectors J101, J102 and J104 on the LGC board is
disconnected.
4. Reduce the mechanical load on the motor by adjusting the drive system. Remove
foreign matter if any.
5. Replace the LGC board.
Are the pins B2 and B4 of the connector J104 on the LGC board always at the level "L"?
1. Check if the connector J104 on the LGC board is disconnected.
2. Check if any conductor pattern on the LGC board is open- or short-circuited.
3. Check if any harness is open-circuited or any connector pin is disconnected.
4. Replace the LGC board.
1. Check if any conductor pattern on the LGC board is open- or short-circuited.
2. Replace the LGC board.
NO
YES
NO
YES
[C06] Paper feed motor rotation abnormal
Is the paper feed motor rotating properly?
1. Check if the connector J41 of the paper feed motor is disconnected.
2. Check if the connector J109 on the LGC board is disconnected.
3. Check if the connector J703 of the switching power supply is disconnected.
4. Check if the harness between the LGC board and the paper feed motor is
open-circuited.
5. Check if the harness between the switching power supply and the paper feed
motor is open-circuited.
6. Check if any harness is open-circuited or any connector pin is disconnected.
7. Rotate the motor manually, clockwise as seen from its back, and if the motor
load is abnormal, remove any foreign matter from the drive unit.
8. Replace the paper feed motor.
9. Replace the LGC board.
YES
NO