Mitch Posted November 30, 2017 Share Posted November 30, 2017 I have a 4yr old px350 that only in Grand Piano mode makes a kazoo sound on the white A4 key and blacksG4# and A4#. I've inspected the keyboard contacts and main circuit boards for any physical signs of burnup, but it all looks good. Anybody with similar prob or ideas or source for info/parts?? Quote Link to comment Share on other sites More sharing options...
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