yamaha 55N piano keyboard drum beats works only

Question

hi i have a yamaha 55N old keyboard. it works drum beats side only. others functions are not working . i need to repair this pleas guide me . thanks all...

SzBálint · Answer

hello: https://elektrotanya.com/showresult?what=YAMAHA%2055N&kategoria=&kat2=all Bálint...

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yamaha 55N piano keyboard, drum beats works only

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