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Repair and disassembly information for the Samsung 55" UHD television with model numbers UN55MU6290xxxx. Released in 2017.

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red pixel line tv

Dear all,

After many years of use, my TV is showing up a red line on the screen. I’ve red many topics about it and espically about the ribbon cable. However, it seems like this isnt making any difference. I’ve tried to swap the 2 ribbon cables at the bottom, to find out if they were responsible of this problem. Tried to re-seat every ribbon cable along side the screen as well. My TV is UE55JU6570U from Samsung. If you have any ideas on how to solve this issue, it will be really appreciated. Thanks :)

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@greg78240 if this line extends all the way across the screen, it is a TAB error. This is not a DIY repair since we would lack the proper tools to repair this. The bonding of the very thin ribbon cable entering the LCD may have come off or broke. Apply some pressure to the cable at exactly the point where the lines appears. If that changes the line, then it is a TAB error. Most of those cannot be repaired but require replacement of the panel. Sometimes the application of a piece of strong tape applies enough pressure to create the connection but this may only be temporary.

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