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Hi , I`m JackPerhaps I can help you with this problem , a few questions coming up and please note that it may take a few minutes between replies;
Did it quit while watching it or simply would not come on today ?
You said " unless it wants to " , does that mean that it will turn on at times ?
O.k and do you mean that its gotten worse since the first time it did this or stayed the same ?
Like it would take longer than usual or repeated attempts before it would turn on until this ?
Well.... one thing I have to say is that those TV's made for bestbuy are not made to last hence the low cost of purchase and from what you are telling me about the reboot (disconnect power) this looks like a main board problem .
Usually a main board for theses TV's will run around $80 (I could get the details) and if you`re not going to repair this yourself then you are looking at a $200 repair in which case I would suggest investing it in a new tv with a fresh warranty
Let me know and i will help you along if you wish to look into repairing this yourself
It certainly is not programming or adjustments and a power board will fail once , no reboot will bring it back so that leaves the main board as suspect .
Of course I can`t be there with tools and meters but by experience I`d give this a 90% chance .
Your other insignia must be plasma by the way , much tougher
Let me know if you have other questions for now and if not then please do not forget to rate by clicking on the star icons at the top, then click on Submit so i get paid for my time helping you .Also note that it will not close this post , you can come back here at any time if you need further info or help . Thank you
This is your main board+power supply all in one , you cannot miss and if someone around the house is handy with a screwdriver , then it is plug&play , all screws and plugs no solder ;
Just verify that it is a match with your version