Yamaha PSR-540 Support Question
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Question posted by neduscel on February 2nd, 2013
Back Up Error
My PSR 540 always show Back Up Error sometimes I turn it on after YAMAHA PSR 540 appearing. My greatest problem is that it plants most times after playing for some moment and whole buttons will sieze to oprate. I truly need a help from any source. I`ll be glad to have my Piano play full time without stopping.
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