Paper Feeding System Related Service Call - Toshiba e-STUDIO350 Service Handbook

5.1.7

Paper feeding system related service call

[C040] PFP motor is abnormal (paper can be fed from the drawers other than PFP drawers)
Is the PFP motor working? (Perform the output check: 03-109/159)
| NO 1) Check if the signal line connector CN503 of the PFP motor is disconnected.
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2) Check if the power line connector CN502 of the PFP motor is disconnected.
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3) Check if the connector CN246 on the PFP board is disconnected.
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4) Check if the signal line connector CN241 on the PFP board is discon-
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5) Check if the power line connector CN242 on the PFP board is discon-
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6) Check if the connector CN303 on the LGC board is disconnected.
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7) Check if the connector pins are disconnected or the harnesses are open
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8) Check if the conductor patterns on the PFP motor board, PFP board and
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9) Replace the PFP motor.
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10)Replace the PFP board.
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11)Replace the LGC board.
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YES
Is the LED on the PFP motor board lit without flickering?
| NO 1) Check if the connector pins are disconnected or the harnesses are open
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2) Check if the conductor patterns on the PFP motor board, PFP board and
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3) Replace the PFP motor.
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4) Replace the PFP board.
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5) Replace the LGC board.
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YES
1) Check if the PLL lock signal CN246-8 output from the PFP board is always "L" level.
2) Check if the voltage supplied to the microcomputer input terminal IC5-17 is always "L" level.
3) Replace the PFP board.
4) Replace the LGC board.
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nected.
nected.
circuited.
LGC board are short circuited or open circuited.
circuited.
LGC board are short circuited or open circuited.
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TROUBLESHOOTING
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