why does my keyboard power up only when I wiggle the power chord?

I have a problem with my Yamaha psr-E413. My key board won't stay on, I have watched it gradually lose power time after time. I have been able to regain power, only when I wiggle the power chord for a while right at the adapter insert on the key board. Now it's at the point to where it won't power up at all.What could the problem be?????

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Sep 07, 2009
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Power Loss PSR E413
by: Alfred

In addition to my earlier post, it may be that if the Jack of your keyboard is a "connector socket" type,and by wiggling the Adaptor Plug you may be temporarily "restoring" contact between the internal circuit board with broken pins of the socket connector, normally soldered directly to the board.
Have a technician check the possibilities, and if I'm correct in my assumptions, please post a comment in this Forum so that we may all benefit from contributions. Thanks.

Jul 18, 2009
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Power Loss PSR E413
by: Alfred

Likely problems in order of severity:
1) Your Adaptor Leads may have snapped (internally) from excessive "wiggling". Try a new Adaptor with same specs.
2) The Jack (Entry Component into Keyboard)may have lost its shape from your "wiggling". Have a technician check it.
I would guess (1) above is the problem. Hope this helps.

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