keyboard won't power with adaptor - yamaha ac power adaptor class 2 12

keyboard won't power with adaptor - yamaha ac power adaptor class 2 12 my yamaha keyboard has worked fine until now. when i went to turn it on, there was a brief light & then dark again. sometimes i don't even get a blip. does the same thing on other outlets. how can i tell if it's the adaptor or keyboard & how can i fix it? thanks
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Total answers/comments: 2

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bert [Entry]

"jayeff

@jayeff

Rep: 349.1k

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bert [Entry]

"Hi @lctsr ,

According to the service manual the part number for part JK151- DC-In 12V socket (p.10 in the Parts list) is LB302260

Here’s a link to just one supplier. It is shown only to give an idea of the cost of the part. There are other suppliers that may suit you better.

Just search online by typing LB302260 only in the search box of your browser to get suppliers of the part."