Unplug,replug the tv to reset it self?Not.Take the tv aparts.Power supply board have dead parts,call capacitors,check power supply board,that the board have a a/c power cord plug into it.That the power supply board.Know basic electronic's?Know how to do soldering,have tools like soldering iron and solders?Check power supply board for those dying capacitors parts,alway bulges up on it tops or puff up on it tops.These capacitors must be replaced in the power supply board.Now the tv shuold have stable ur power light and work.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.
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