- Trimmer paddle motor (M33)
- SD drive board (SDDB)
- SD control board (SDCB)
- When you isolate the faulty part, the limited use is available.
- The message "Please call service" and "Press [Help] to disengage" are displayed alternately on the touch panel.
- When you press the help key, the message "Please turn on power again" is displayed on the touch panel.
- Check the trimmer paddle, and clean or repair it when there is any abnormality.
- Check the connector connection and the wiring between SDDB and the motor, and repair it when there is any abnormality.
- Che the I/O drive of the motor and the coupling of the gear, and repair or replace it when there is any abnormality. (Wiring diagram: SD-506: 11-W)
- Replace M33.
- Replace SDCB.
