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The LG 5G UH850V is a 55" Smart Television designed and manufactured by the LG electronics manufacturer.

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Purple / Pink Vertical Lines

LG 5G UH850V


My tv suddenly stopped working and screen was full of horizontal lines. Usually

Block Image

pink purple.

I tried everything, like removing hdmi input and switching on off etc.

Occasionally it will come to life and work for 20 - 30 minutes but will go back to same.

What do you reckon problem us and is it worth repairing?

4 year old TV.


Answer this question I have this problem too

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Hi, Yes, I continue to have sound as normal. My TV was switched off for a day and half and when i turned on this evening, it worked perfectly for 15-20 minutes and then again same issue with vertical lines. I switched off for 10 minutes and it was working again. Added photograph shows what it looks like.


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DanDan ultimately it would depend on what all of that looks like. Do you continue to have sound? It could be the main board, which is my primary suspect from your information. Post some good pictures with your QUESTION. That way we can see what you see. Use this guide Adding images to an existing question for that.


DanDan that looks like a failed graphics processor. My first step would be to change the main board. Schematics for most mainboards are not readily available so a repair could be tough. A reflow might get a temporary change but not a definite repair. Once you have your back cover off the TV post some pictures of it with your question. Lets see what the IC‘s look like

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Dan Dan will be eternally grateful.
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