Toshiba DP3500, Руководство по обслуживанию

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DP4500/3500 TROUBLESHOOTING 5 - 54 December 2000 © TOSHIBA TEC
[C1B] LCF motor is abnormal (paper can be fed from the cassettes other than LCF cassette)
Is the LCF motor working? (Perform the output check in the test mode: 03-122/172)
NO
1. Check if the connector CN1 of the LCF motor is disconnected.
2. Check if the connector CN102 on the LCF board is disconnected.
3. Check if the signal line connector CN100 on the LCF board is disconnected.
4. Check if the power line connector CN101 on the LCF board is disconnected.
5. Check if the connector J312 on the LGC board is disconnected.
6. Check if the connector pins are disconnected and the harnesses are open-circuited.
7. Check if the conductor patterns on the LCF motor board, LCF board and LGC
board arer short- or open-circuited.
8. Replace the LCF motor.
9. Replace the LCF board.
10. Replace the LGC board.
YES
1. Check if the connector pins are disconnected and the harnesses are open-circuited.
2. Check if the conductor patterns on the LCF motor board, LCF board and LGC board are short- or
open-circuited.
3. Check if the PLL lock signal CN102-3 output from the LCF board is always “L” level.
4. Check if the voltage supplied to the microcomputer input terminal IC103-17 is always “L” level.
5. Replace the LCF motor.
6. Replace the LCF board.
7. Replace the LGC board.
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