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Old 10-01-2021, 03:16 AM   #14
angelos
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Join Date: Dec 2012
City & State: Free State
My Country: South Africa
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Posts: 342
Default Re: TCL 65" U65E5800FS - Black shading after startup

I would loosen the bezel and when the tv does the shadow thing i would lift the glass to see if my back lights are causing this issue. Just maybe its them, like a string of leds going dead. You seem the funny thing is that the LED driver circuit is quick to cut the power to the entire back light circuit if a fault is detected so i dont know if it is back light related in your case.
Look to see if it is your leds. If they are all lighting up then obviously it is panel related. It could be one of those COF bonded IC's. In that case you can toss the tv in the landfill cause you will need to replace one of those COF IC's Tracing where the fault is i would suggest you go to youtube and watch a number of videos talking of panel issues. Unfortunately most of them are in hindi, malaysian or some other foreign language. I can't help you with this issue unless there is someone on this forum group that has experience.
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