My UN55TU8000F had 5 horizontal lines. 2 months later, it has 8 horizontal lines. At this moment, I thought the whole display was poop. When I opened it up to tinker with the module/wifi board, I couldn't see anything. One day, I got home and turned on my TV. Same problem, it kept rebooting. Opened the back cover off to find that the panel driver ribbon that sits right at the middle was a little bent on one end. When I fondled with it, it would change where the pixels were set up. Ordered new part, pretty confident this will be the fix.
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My UN55TU8000F had 5 horizontal lines. 2 months later, it had 8 horizontal lines. At this moment, I thought the whole display was poop. When I opened it up to tinker with the module/wifi board, I couldn't see anything. One day, I got home and turned on my TV. Same problem, it kept rebooting. Opened the back cover off to find that the panel driver ribbon that sits right at the middle was a little bent on one end. When I fondled with it, it would change where the pixels were set up. Ordered new part, pretty confident this will be the fix.
My UN55TU8000F had 5 horizontal lines. 2 months later, it has 8 horizontal lines. At this moment, I thought the whole display was poop. When I opened it up to tinker with the module/wifi board, I couldn't see anything. One day, I got home and turned on my TV. Same problem, it kept rebooting. Opened the back cover off to find that the panel driver ribbon that sits right at the middle was a little bent on one end. When I fondled with it, it would change where the pixels were set up. Ordered new part, pretty confident this will be the fix.