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Both sides from LG 55UF850T randomly dims


Selva Kumar A

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 I have Lg55UF850T. I have it hooked up to my PC. Randomly when ever I am using my PC THE FOLLOWING THING HAPPENS. Picture attached. 

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But when I turn the TV off and then ON everything is back to normal. This is happening randomly. And due course of time the frequency is becoming higher and higher and now whenever I turn off and on my tv this appears immediately.

 

Please help its driving me crazy

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