Toshiba e-STUDIO3511, Service Handbook, Page: 327 / 552

November 2003 © TOSHIBA TEC 5 - 13 e-STUDIO3511/4511 TROUBLESHOOTING
[E520] Stop jam in the ADU
Open the ADU. Is there any paper in front of the ADU entrance sensor?
YES Remove the paper.
NO
Is the ADU entrance sensor working? (Perform the input check: 03-[FAX]OFF/[8]/[G])
NO 1. Check if the connector of the ADU entrance sensor is disconnected.
2. Check if either of the connectors CN211 or CN214 on the ADU board is
disconnected.
3. Check if the connector CN340 on the LGC board is disconnected.
4. Check if the connector pins are disconnected or the harnesses are open circuited.
5. Check if the conductor patterns on the ADU board and LGC board are short
circuited or open circuited.
6. Replace the ADU entrance sensor.
7. Replace the ADU board.
8. Replace the LGC board.
YES
Is the exit motor (rotating in reverse) working? (Perform the output check: 03-121/171)
NO 1. Check if the connector of the exit motor is disconnected.
2. Check if the connectors CN437 and J434 on the DRV board is disconnected.
3. Check if the connector CN360 on the LGC board is disconnected.
4. Check if the connector pins are disconnected or the harnesses are open circuited.
5. Check if the conductor patterns on the DRV board and LGC board are short
circuited or open circuited.
6. Replace the exit motor.
7. Replace the DRV board.
8. Replace the LGC board.
YES
Is the ADU motor working? (Perform the output check: 03-110/160)
NO 1. Check if the connector of the ADU motor is disconnected.
2. Check if any of the connectors CN211, CN212 and CN215 on the ADU board is
disconnected.
3. Check if the connector CN340 on the LGC board is disconnected.
4. Check if the connector pins are disconnected or the harnesses are open circuited.
5. Check if the conductor patterns on the ADU board and LGC board are short
circuited or open circuited.
6. Replace the ADU board.
7. Replace the LGC board.
YES
Check the rollers in the ADU and the exit roller of the equipment. Replace them if they are worn out.