Yamaha MM6 Keyboard Display is blank and No sound? Any ideas on fixing/resetting

aamozafari

Distinguished
Feb 2, 2012
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Some kids played with our Yamaha MM6 keyboard. Don't know what they did.
Now the display is blank-blue color and no sound!
Power does come on but nothing more.
Any ideas on how to reset/fix?
 

djvlive

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Jul 9, 2012
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Did you get this figured out at all? I'm having a similar problem.
 

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