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??? what does a power supply failure on a tv look like ???
none of the buttons light up , nothing lights up no bars or stripes on screen , nothing !! cord is plugged into a power outlet and is on , but nothing no lights no sound (sometimes a high pitch squeal is heard )
First plug a other thing in the plug on the wall if it comes on then you know it's the tv power is a problem it could be that the power supply's has popped also there should be a button on the side of the tv some ware press it in or on make sure there
Check the power plug for power. If this is OK then you likely have a blown TV power board, and the primary components are affected. The caps in the primary circuit can be replaced if they are blown, but otherwise you may need a new board.
you either have a faulty power supply or faulty main board. Vizio power supplies on the older sets are pretty decent. It's usually the main boards that go. These older main boards tend to be pricey so it may be better to buy a new set.
Hi if you plug it in at the mains and switch it on and you get nothing not even the standby light then this points to either a fuse been blown so check the fuse in the plug failing that it will mean getting a new power board fitted, now if the telly is more than say 2 years old i would say its not worth getting fixed as the chances are you will replace the power board and then you will start having problems with the inverter, soyou could end up throwing money down the drain.
if its less than 2 years old and its totally dead check the fuse in the plug change it anyway and then give it a try but if its still totally dead then this points to either the fuse been blown in the telly this is a little clear glass fuse located where the mains cable plugs into the main power board, if this fuse is not blown also then the whole power board will need replacing.
let me know how you get on or if you need further assistance ok
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