Toshiba e-STUDIO520 Service Handbook page 443

[CB70] Stack amount detection sensor abnormality
[Procedure 1]
Is the problem solved by turning OFF and ON the power of the equipment?
YES
NO
Is the wiring between the finisher controller PC board and the height sensor (PS1) correct?
YES
NO
Is the voltage between J6-2(+) and J6-4(-) on the finisher controller PC board 5V DC?
NO
YES
Re-adjust the height sensor. Replace the height sensor if it still causes the problem.
[Procedure 2]
Is the connector J6 on the finisher controller PC board, J114 of the height sensor (PS1) or
relay connector J212 and J213 disconnected?
YES
NO
Is the voltage between J6-2(+) and J6-4(-) on the finisher controller PC board 5V DC?
NO
YES
Is the wiring between the finisher controller PC board and height sensor correct?
YES
NO
Replace the height sensor.
[Procedure 3]
Is the problem solved by readjusting the DIP switch?
YES
NO
Is the wiring between the finisher controller PC board and height sensor (PS1) correct?
YES
NO
Is the voltage between J6-2(+) and J6-4(-) on the finisher controller PC board 5V DC?
NO
YES
Replace the height sensor.
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END
Correct the wiring.
Replace the finisher controller PC board.
Connect the connector(s).
Replace the finisher controller PC board.
Correct the wiring.
END
Correct the wiring.
Replace the finisher controller PC board.
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