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Purchased in 2019 Model #: UN65NU6900FXZA

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How do I get rid of the vertical lines?

I have a Samsung UN65NU7300FXZA with vertical lines. The thin vertical lines,of all colors, start to show up appropriately 20 seconds after I turn my TV on. One at a time and in two specific areas of the screen. Since it didn't get these lines until a short period after I turned it on I thought maybe it was heat related. So,the first thing I did was grab a small house fan and pointed it directly at the pier supply board. Sure enough the lines dissappear one by one in the exact opposite order they appeared. If I keep the fan there the lines stay away permanently and I can watch TV for any length of time. Removing the fan brings the lines back immediately. Now, I know I can buy a small cooling fan to prevent the lines. But does anyone know exactly whats going on here? And how to fix this without having to use a fan?


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@simbaisaboy this will really depend on where and what overheats. If anything it would be related to the panel. Boards that heat up in general do now have the ability to create single lines on the screen. We would need to see what those look like.

I suggest that you get yourself some freeze spray and use that to try an isolate which are gets to hot. Start with the areas that are currently most affected by the fan.Then we can try and isolate this to the component level and hopefully getting this resolved.

So post some really good pictures of your boards with your Question so we can see what you see. Adding images to an existing question

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