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〔5〕 TROUBLESHOOTING
【A】 Problems with Starting
● Does not turn on.
Possible Cause 1 : The AC adapter may be disconnected or out of order.
Solution 1 : Check the AC adapter connection and the output voltage.
Possible Cause 2 : The connector may be disconnected.
Solution 1 :
Solution 2 :
Solution 3 :
Solution 4 : Check if the cable is broken.
Possible Cause 3 : The switch board may be faulty.
Solution 1 : Check the analog board inside the sound source unit and the soldering on the
Solution 2 : Replace the analog board inside the sound source unit.
Solution 3 : Replace the volume board inside the controller.
【B】 Problems with the Controller
● The controller turns on and emits electronic sounds but nothing is displayed on the
LCD, and the switch does not work.
Possible Cause 1 : The connector may be disconnected.
Solution 1 :
Solution 2 :
Solution 3 :
Solution 4 : Check if any wire is broken.
Possible Cause 2 : The switch board may be faulty .
Solution 1 : Check the soldering surfaces on the switch panel board.
Solution 2 : Replace the switch panel board.
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