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How do I fix evenly spaced vertical lines across entire screen?

I have a 55” LG tv and it has evenly spaced vertical lines across the whole screen. They are static-y in appearance, so it looks like the whole screen went through a faulty printer that skipped ink or something. The lines only appear on images from the input, and not anything Menu related to the tv (No Input message, Menu options, Logo, etc.) I have replaced the T con board and that did not fix the issue. I have even baked the main board in the oven to see if that would help, but did not. I have taken each ribbon out and wiped the connections to them. I am not sure where to go from here.

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Hi @kshipn ,

What is the model number of the TV?

Just verifying that the lines don't appear when you have the menu screens showing?

You didn't say but have you tried different inputs, input types, input cables or even different signal sources e.g. a DVD player to see if the lines were there or not?

Have you tried routing the input signal cable away from any AC power cable if they are run close together?

da

@kshipn post some pictures of what your screen shows. That way we can see what you see. Aggiungere immagini ad una domanda

da

The model number is LC550EGE-FHM1. And yes, it seems to be with any input.

da

Hi @kshipn ,

It appears as though you provided the part number for the display panel and not the model number for the TV.

da

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@kshipn since it does not affect the menu you really should try a new main board. That whole baking stuff only works in a few (very seldom) situations.

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Kris sarà eternamente grato.
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