Hi,
I checked through the forum and I cannot find an answer for my issue.
What's wrong?
My piano - Casio PX-770BK - got a problem with key pressing.
I happens only at 3 keys, F G and A on IV octave.
After 15-20 second after turning device on, if I click on any of those 3 keys or both at the same time (it happens randomly) I hear the key I clicked which is fine, but I also hear 2 other sounds from higher octave.
I don't know what can be the reason and how to fix it. Does anybody know what can be the reason?