Thick black line down center of screen, PN50A400C2DXZA
I received a 55in QLED Samsung television. It has a vertical 3/4” black bar down the center of the screen. I have tried cleaning and re-seating every connector and tab on the back. At one point I produced horizontal lines but remedied them by cleaning the tabs an additional time. I’ve done every bit of clean up I can muster on the back, but the thick black line remains.
The line doesn’t flicker, doesn’t change color or size when pressing on the screen. The screen is glass, so massaging it doesn’t produce any results other than cleaning it further.
Running the pixel shift tool from the tv’s menu produced no results, line doesn’t budge.
Resetting to factory does nothing.
This is a screenshot from a youtube video, however it looks to be exactly the same as the TV I was working on from the back. In the video, I’ve performed all the re-seating and cleaning this user suggests. link: https://www.youtube.com/watch?v=LRVZytbQ...
I am looking for any additional troubleshooting steps I may have missed and suggestions.
Thanks,
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Update (11/10/2019)
Thanks for the quick reply @oldturkey03.
The issue persists across all input and I’ve pushed on each of tabs circled in this picture, while it was on and saw no change. I’m not sure what to do next.
Is this a good question?
2 Comments
I have this wide vertical line going down the middle of my TV how did you fix yours I need the same
by Patricia longwell
@palanddd Thick black lines are commonly caused by a failed connection between the panel and the LCD driver board. What is your TV's make and exact model? Anything happen to that TV or did this just start all of a sudden?
by oldturkey03