Question about Audio Players & Recorders
Hello, I've the same problem (Spain). For me it seems to be the ripple of the power supply. I've tested to power the piano with a 12 v battery, and then there is no noise at all. Next week I will try a better power supply. Yamaha seller has not given me any solution. Did you find one ?
Posted on Jan 29, 2011
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Posted on Jan 02, 2017
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