I have a hisense brand TV and it's about 5-6 years old. I have sound but no picture, just a black screen. If it sits a while

mamabear6566

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Jul 30, 2017
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My hisense TV that's 5-6 yrs old has sound but no picture. If I let it sit awhile the picture is there at first then screen goes black. Is any help for it? Thx