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Beatrice Rana’s “Classiche Forme”
This upcoming summer marks the highly anticipated 10th edition of the Classiche Forme chamber music festival, run by acclaimed pianist Beatrice Rana. As preparations for the milestone anniversary get underway, we now get a fascinating look back at the last edition by guest writer Laurence Vittes from Bachtrack. Read more
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Topic: Yamaha P70 - tech/troubleshooting help  (Read 2020 times)

Offline indyfan

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Yamaha P70 - tech/troubleshooting help
on: February 21, 2015, 01:27:39 PM
hi folks,

I have a Yamaha P70 that has hardly ever been used, but I believe has been plugged in for too long, and now the piano won't turn on when I press the power button.

I have removed the back, and I believe there is power from the power cord.  My multimeter has confirmed 12V.  I have also confirmed 12V at the socket on the circuit board, where the power cord plugs in.

I have followed the ribbon cable that connects to the other circuit board that contains the power switch, and assume that the red wire would be the power wire/pin.  With that assumption, I could not find 12V at the pin on the main board.  So my assumption is that something on the main 'power' circuit board is fried. 

Since all the online manual sites seemed to have sketchy reviews, I don't have a service manual to refer to.

So my question to you is what should I do next? 
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