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Hello , my name is Jack Perhaps I can help you with this problem but first i would have a few questions ;
The back cover off may be aplus here if we need board numbers but first ;
Was there a power blackout or storm prior to this in your area ?
Did it quit while watching it or simply would not turn on today ?
Do you still have sound ?
I honestly found this by the trash can and grabbed it so I have no idea. But it was in too good of shape and 3 times bigger than the one I currently have so thought I would try to see what was wrong. I don't have any sound I have the cable plugged in but don't know what input it is currently on to see if is on the correct one for cable
Ok then thats no problem .
Right now you are saying that it does respond to the power on/off command by the yellow/amber vizio logo turning white , is that correct ?
You can turn it off/on at will even though it does not come on ?
That is correct
Ok then this is a main board problem and it is fairly common with this serie of vizio tv`s .
Look at the link/picture below and you will see that i pointed to a bar coded sticker on the main board ;
Is the number on yours the same 3655-0062-0150 or perhaps 3655-0022-0150 ?
Thanks for waiting.
Right now it looks like everyone is out of stock on this item and that could be why it was thrown away but i did find a board on ebay ;
You can also use either of those numbers if you`d like to do your own shopping , this one 3655-0022-0150 or this one 0171-2272-2962
There is a repair kit out there as well but you need surface mount solder /desolder equipment to install it or have a shop do it for you at perhaps around $100 charge ?
here is that kit;
Hope this help and I will be in standby if you have any questions.Thank you and please take the time to rate my answer if that answers your question and you can still reach me here at anytime after this chat is rated if you have other questions.