Toshiba e-STUDIO3511, Service Handbook, Page: 365 / 552

November 2003 © TOSHIBA TEC 5 - 51 e-STUDIO3511/4511 TROUBLESHOOTING
5.1.13 RADF related service call
Note:
When performing the RADF related troubleshooting, be sure to perform “Automatic adjustment of RADF sensor and
EEPROM initialization (05-356)” and then "RADF original guide width adjustment (05-367, 368) at Adjustment Mode
whenever the RADF board, original length sensor, read sensor or reverse sensor has been replaced.
[C730] EEPROM initialization error
(1) Check if the conductor pattern on the RADF board is short circuited or open circuited.
(2) Replace the RADF board.
[C810] Fan motor abnormality
(1) Check if the load on the motor shaft is normal.
(2) Remove any foreign matter.
(3) Check if the harness connecting the fan motor and RADF board is open circuited.
(4) Check if the power is supplied to the pin 1 of the CN9 on the RADF board during the operation.
(5) Check if the conductor pattern on the RADF board is short circuited or open circuited.
(6) Replace the fan motor.
(7) Replace the RADF 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 RADF board is open circuited.
(3) Check if the conductor pattern on the RADF is short circuited or open circuited.
(4) Replace the read sensor.
(5) Replace the RADF board.
[C830] Original length sensor adjustment error
(1) Check if there are any foreign objects between the original length sensor and the reflecting mirror.
Check if the reflecting mirror is dirty.
(2) Check if the harness connecting the original length sensor and the RADF board is open circuited.
(3) Check if the conductor pattern on the RADF board is short circuited or open circuited.
(4) Replace the original length sensor.
(5) Replace the RADF board.