I have a 55" Sony

Tries tv unplug,replug it back about an hour later for tv to do a resetting itself back to the factory setting.The tv now should be working again.If tv still have the same problems,the tv power supply board is the causes and the problems.That the board where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole new refurbish power supply board for the replacement.

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