- FNS control board (FNSCB)
- Punch drive board (PDB)
- Punch motor (M301)
- Punch home sensor /1 (PS301)
- Punch home sensor /2 (PS307)
- Check the punch kit, and clean/repair it if any abnormality.
- Check the connector connection and the wiring between PDB and motor/sensor, and repair it if any abnormality.
- Check the connector connection and the wiring between FNSCB and PDB, and repair it if any abnormality.
- Check the I/O drive of the motor and the coupling of the gear, and repair/replace it if any abnormality. (Wiring diagram: PK: 5-B)
- Check I/O and the operation of the sensor, and repair/replace it if any abnormality.
- Replace M301.
- Replace PS301 and PS302.
- Replace PDB.
- Replace FNSCB.
