Discolourating vertical lines on TV Samsung UE46D7000

Hi everybody!

I'm writing to ask for some help and clarifications about this problem I've been having with my old TV.

Years ago these lines appeared on my TV. In the beginning, they were few and not so visible, but with time and TV utilisation, they became more and more, covering almost all the panel. I know a lot of people having the very same problem on the same TV model, but nobody understood what exactly the problem is.

With time I noticed that leaving the TV off for days, these lines decrease in intensity and number. They also disappear if I don't turn on the TV for weeks. Turning it on is great at the beginning, but after a while, they reappear as before.

Now... I saw many discussions on the web about this problem and many people think that this is not due to a bad panel (because it "fixes after days), but maybe in some other parts (motherboard especially)

I also replaced the T-con board, but as I expected, the problem didn't solve.

Do you have any ideas of what the problem could be?

I think you are talking about this, close to the frame, below the t-con board. It’s not visible, because I’m having serious difficulties unscrewing the metal plate covering it.

Am I right? It is extremely small. I didn’t expect it.

By the way, the mainboard looks perfect to the naked eye.

Yeah, I was talking about those below the metal plate.

I exposed them, but they look totally fine

Unfortunately, the image quality is not the best…