Power LED light indicator are flashing it is the effect of the power supply board are dying and not giving the tv the wright amount of voltages anymore.That the board,where the power a/c cord plug into it.U have all the tools,u understanding basic electronic also can u do basic soldering?Yes,check all over the power supply board for dying parts call capacitors.These dying capacitors are alway bulges up or puffing up on to it tops.By replacing all these dying capacitors are bulges or puffing up on it tops,will solved this flashing LED power light indication,power supply board will work again.Or try website like Ebay.com to buy a whole refurbish power supply board for the replacement.
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