Radf Related Service Call - Toshiba e-studio600 Service Manual

5.1.10

RADF related service call

Note: Note:
If any of the ADF board, original length detection sensor, read sensor, small original reverse
sensor and large original exit sensor has been replaced in an RADF-related troubleshooting,
perform "Automatic adjustment of RADF sensor and EEPROM initialization (05-356)" in the
Adjustment mode. If "EEPROM initialization (05-352)" had been performed, be sure to per-
form "RADF original guide width adjustment (05-367/368)" consecutively.
[C730] EEPROM error
(1) Check the ADF board, mainly IC3, for short circuits and open circuits.
(2) Replace the ADF board.
[C820] Read sensor adjustment error
(1) Check if there is any foreign matter between the read sensor and the reflecting mirror. Check if
the reflecting mirror is dirty.
(2) Check if the harness connecting the read sensor and the ADF board is open circuited.
(3) Check the circuits and connectors on the ADF board, mainly IC6, IC11 and CN11 and CN15, for
short circuits and open circuits.
(4) Replace the read sensor.
(5) Replace the ADF board.
[C830] Original length sensor adjustment error
(1) Check if there is any foreign matter between the original length detection sensor and reflecting
mirror. Check if the reflecting mirror is dirty.
(2) Check if the harness connecting the original length detection sensor and the ADF board is open
circuited.
(3) Check the circuits and connectors on the ADF board, mainly IC6, IC11 and CN15, for short cir-
cuits and open circuits.
(4) Replace the original length detection sensor.
(5) Replace the ADF board.
e-STUDIO520/600/720/850 TROUBLESHOOTING
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March 2005 © TOSHIBA TEC