Grundig 65GDU7810B TV Screen LED Panel Fault

I bought a Grundig TV in 2020. It's the 65GDU7810B model. During the first week, the TV had problems with the screen, so I asked for a new one. So, basically, after a while, near the end of the warranty, these lines showed up on the screen and messed up the LED panel. Even though I asked for a repla...






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