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Old 09-27-2021, 04:52 AM   #6
angelos
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Join Date: Dec 2012
City & State: Free State
My Country: South Africa
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Posts: 350
Default Re: TCL 65" U65E5800FS - Black shading after startup

I think it is a panel related issue, perhaps the side COF IC's that are causing the issue. I had my Samsung TV doing this intermittently and i found one of those side COF IC's was touching on the metal frame. It seems as when they manufactured this TV they bent that COF IC like a "U". I straightened this COF IC and taped it down and the problem was solved. It's been a year now.
My symptom was a darker horizontal bar that was appearing and disappearing with a thickness of about 3 inches.
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