I suggest to remove the back of your TV and to check the boards for any obvious damage etc. About one year ago the tv developed a vertical line near the center of the tv. Verify that the cable in use is secured correctly at both the external device and the TV. Other times the T-Con Board itself may be faulty and need to be replaced. I have a 40" JVC lcd tv. If the lines are also found on different channels, try changing an input. You should check the hinge area where normally it fails due to more flex in that …

That line …

It is about three years old. LG TV - Troubleshooting Horizontal or Vertical Lines (webOS) [Narrator] Lines appear on my TV screen what do I need to do. If the horizontal or vertical lines are still present, then substitute the cable if you have a … The line was, and still is, blue in color. Many of the causes for vertical lines on a television screen is that the ribbon cable which connects to the LCD/LED panel is cracked or faulty. A TV screen that shows vertical colors may be caused from a loose cable wiring, loose board, a control board “grounding” issue, a damaged screen, or a faulty T …

Fix#1: Cracked Ribbon Cable.

After that consider the T-con board. Alex Malozemoff vertical lines are most commonly caused by a bad t-Con board. When you see lines on your TV screen, move on to other channels to check. Part number for that is BN81-04162A - Samsung Television Vertical colored lines usually show on a TV screen when the T-Con board is not working properly.

You can also run the picture test. A bad cable, or a cable that is not securely fastened to the input/output ports, can disrupt the signal and cause horizontal or vertical lines. Many times this can simply be caused from wiring that is not securely fastened.

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