Toshiba e-STUDIO520 Service Handbook page 451

[Procedure 3]
Is the switch actuator for the delivery door working properly?
NO
YES
Is the delivery cover switch working normally?
NO
YES
Measure the voltage of J11-9 on the saddle stitcher controller PC board when the delivery
door is opened. Is it 5V ?
NO
YES
Replace the saddle stitcher controller PC board.
[CC20] Communication error between Finisher and Saddle stitcher section
Is the problem solved by turning OFF and ON the power switch of the equipment?
YES
NO
Is the wiring between the finisher controller PC board and the saddle stitcher controller PC
board connected?
YES
NO
Measure the voltage between J3-2 (+) and J3-1 (-) on the finisher controller PC board. Is it
DC 5V?
NO
YES
Replace the saddle stitcher controller PC board.
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Fix the mechanism.
Replace the switch.
The delivery cover sensor (PI3S) is broken. Replace it.
END
Connect the wiring.
Replace the finisher controller PC board.
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