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My tv turns off and back on all by itself , what the heck is going on

Ok my 50 inch Hisensce tv turns on and off all by itself,why ?? Just repeats itself , And I want to do the repair so any info appreciated thanks

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@timerickso43026 does it do that when you first turn it on or later on during its normal operation. This sounds like a bad power supply but can be caused by a failed POST. We will need to know the exact model. Also, if you haven't already done so, unplug your TV and remove the back cover. Visually check the boards for any damaged components. Next take some pictures of all of the boards and post those with your Question. That way we can see what you see. Adding images to an existing question

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