How to mend Korg Ec120

My top Bflat on my Roland 4500 piano has suddenly ceased to work?

Technics Digital Piano PR370 sound problem?

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Why do yahama use plastic key boards when their products are so expensive?

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need new cord?

Hissing Sound?

elka x30?

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No sound?

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fix speaker?

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How can i fix my yamaha keyboard, PSR 270?

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How can I fix a keyboard with dead keys. ?

my piano soft pedal wont work?

i have a ROLAND RD-150 with tow keys with no sound, can i fix it?

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Sound Name Error on Technics Pr902 Piano?

wrong plug?

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