5V power abnormality in the SD drive board (SDDB)
Measures to take when alert occurs:
- SD drive board (SDDB)
- The message "Please call service" is displayed on the panel.
Solution:
- Check the connector connection and the wiring of SDDB, and repair it when there is any abnormality.
- Check the connector connection and the wiring between SDDB and SDCB, and repair it when there is any abnormality.
- Replace SDDB.
- Replace SDCB.
