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Dim grey screen, no picture, good sound.

Hello,

I have an LG 55 inch smart tv, 55UK5090PUA. The screen suddenly went from a solid picture to a dimly lit grey screen. There was no transition where it was intermittent - it just stopped displaying a picture, although when I pressed hot buttons to get to a streaming service, I could hear the sound.

After trying the reset/troubleshooting, I replaced the Main Board with the same replacement part (EBT65513202), plugged everything back in, with the same results. I guess now I have a back-up.

Does anyone have a suggestion on what I should check next (and how)? With the back off the TV, you can see the back lights on for sure, so I believe there is juice moving through the power board.

Thank You in advance,

Evan

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Gönderildi: 27 Şub 2023

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I don’t understand what I did, but I found this YouTube video of a guy that ended up blocking one of the paths on a flex cord that was shorting out between the screen and T-Con … and it worked for my issue too.

Here is the link, in case anyone else has the unanswered problem similar to mine. I’m sure there is a more permanent fix with new parts, but I’ve spent enough time and money on this TV already, so I’m going to call it good.

https://youtu.be/tCknTVbZ3I8

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LG Smart TV

Dim grey screen, no picture, good sound.

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