Code: C-1203
Classification: LS (1st tandem): LS abnormality
Cause:
The alignment plate home sensor (PS12) does not turn ON within a specified period of time after after the alignment motor (M7) turns ON. Or, PS12 does not turn ON within a specified period of time.
Measures to take when alert occurs:
The main body and the option stop immediately.
Estimated abnormal parts:
- Alignment motor (M7)
- Alignment plate home sensor (PS12)
- LS control board (LSCB)
Correction:
Press the help key, and activate and deactivate the sub power switch (SW2) of the main body.
Note:
- Faulty part isolations allows you to use the machine temporarily.
- When you press the help key, the messages "Please call service" and "Press [Help] to disengage" are alternately displayed.
- When you press the help key, the message "Please turn on power again" is displayed.
Solution:
- Check the alignment section, and clean/repair it if any abnormality.
- Check the connector connection and the wiring between LSCB and motor/sensor, and repair it if any abnormality.
- Check the I/O drive of the motor and the coupling of the gear, and repair and replace it if an abnormality is found. (Wiring diagram: LS-505: 7-A, LS-506: 6-A)
- Check I/O and the operation of the sensor, and repair and replace it if an abnormality is found. (Wiring diagram: LS-505: 5-H, LS-506: 4-H)
- Replace PS12.
- Replace M7.
- Replace LSCB.