Toshiba e-Studio160 服务手册

e-STUDIO160/200/250 TROUBLESHOOTING

4 - 44

December 2002 TOSHIBA TEC

4.1.14 ADF or RADF system service call

C71

RADF DC motor lock error

Is the RADF DC motor working (forward/reverse)? (using the test mode 10, Output Test, CODE

281/282)

1. Check if each connector between the RADF DC motor and the RADF PWA is

disconnected.

2. Check if each connector between RADF PWA and the scanner control PWA is

disconnected.

3. Check if each connector between the scanner control PWA and the main PWA

is disconnected.

4. Check if each connector pin is removed or the harness is broken.

5. Check if any conductor pattern on the RADF, scanner control and main PWA is

open- or short-circuited.

6. Replace the RADF DC motor.

7. Replace the RADF PWA.

8. Replace the scanner control PWA.

9. Replace the main PWA.

1. Check if the RADF DC motor pulley is mounted to the axis of the RADF DC motor and

rotates properly.

2. Check if any foreign obstacles are on the detection slit of the RADF DC motor pulley. Re-

move such foreign obstacles, if any.

3. Check if any foreign obstacles blocking the slit of the RADF DC motor sensor. Remove such

foreign obstacles, if any.

4. Replace the RADF DC motor pulley.

YES