Measures to take when alert occurs:
- Tray up down motor (M11)
- Main tray upper limit sensor (PS20)
- Punch drive board (PDB)
- When you isolate the faulty part, the limited use is available.
- The messages "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 punch alignment section, and clean or repair it when there is any abnormality.
- Check the connector connection and the wiring between FDB and the motor and the sensor, and repair it when there is any abnormality.
- Check 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: FD-503: 3-D)
- Check I/O and the operation of the sensor, and repair or replace it when there is any abnormality. (Wiring diagram: FD-503: 6-D)
- Replace PS20.
- Replace M11.
- Replace PDB.
