Samsung TV permanent vertical lines

Greetings, I own a Samsung 65” tv UN65NU6070FXZA (my model wasn’t available on the “choose a device option). Tv has developed permanent vertical lines on the left side of the screen. Now it developed another issue. It appears that when certain light colors appear the whole screen gets covered with the lines for a few seconds. The screen flickers the lines on and off.


Last week tv went completely blank with a gray/black screen. I did image test with flashlight and there’s no picture. Backlight seems to be working good, and when main board unplugged from power board lights up backlights. If anyone could help I would really appreciate it. Sound is working perfectly.

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