Toshiba e-STUDIO520 Service Handbook page 439

[CB30] Tray lift motor abnormality
[Procedure 1]
Is the tray 1 home position sensor (PI8) working properly?
NO
YES
Is the tray 1 lifting mechanism working properly?
NO
YES
Is 24V supplied to the tray1 lifting motor (M5) from the finisher control board at the timing of
tray driving?
NO
YES
Is the harness between the finisher control board and tray 1 lifting motor normal?
NO
YES
Replace the tray 1 lifting motor.
[Procedure 2]
Is the tray 1 lifted/lowered?
l YES
l
l
l
l
l
NO
Is the power supplied to the motor from the finisher control board at the timing of tray 1 lift-
ing?
NO
YES
Is there any abnormality at the tray 1 lifting mechanism?
YES
YES
Correct the defect of the mechanism.
[Procedure 3]
Is the tray 2 home position sensor (PI25) working properly?
NO
YES
Is the tray 2 lifting mechanism working properly?
NO
© 2005 - 2007 TOSHIBA TEC CORPORATION All rights reserved
Replace the tray 1 home position sensor.
Correct the defect of the mechanism.
Replace the finisher control board.
Replace the harness.
Is the wiring between the finisher controller PC board and tray 1 lifting
motor normal?
NO Correct the wiring.
YES
Replace the tray 1 lifting motor.
Replace the finisher control board.
Correct the defect of the mechanism.
Replace the tray 2 home position sensor.
Correct the defect of the mechanism.
5 - 77
e-STUDIO520/523/600/603/720/723/850/853
TROUBLESHOOTING
5