Toshiba e-STUDIO520 Service Handbook page 448

[CC00] Sensor connector connection error abnormality
[Procedure 1]
Is the guide home position sensor (PI13S) connected to the saddle stitcher controller PC
board?
NO
YES
Is the wiring between the sensor and the saddle stitcher correct?
YES
NO
Is 5V DC being supplied from J9-7 on the saddle stitcher controller PC board?
NO
YES
Is J9-11 on the saddle stitcher controller PC board correctly connected to the ground?
NO
YES
END
[Procedure 2]
Is the paper pushing plate home position sensor (PI14S) connected to the saddle stitcher
controller PC board?
NO
YES
Is the wiring between the sensor and the saddle stitcher correct?
YES
NO
Is 5V DC being supplied from J9-10 on the saddle stitcher controller PC board?
NO
YES
Is J9-11 on the saddle stitcher controller PC board properly connected to the ground?
NO
YES
END
e-STUDIO520/523/600/603/720/723/850/853
TROUBLESHOOTING
Connect it to the board.
Correct the wiring.
Replace the saddle stitcher controller PC board.
Replace the saddle stitcher controller PC board.
Connect it to the board.
Correct the wiring.
Replace the saddle stitcher controller PC board.
Replace the saddle stitcher controller PC board.
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