You can get rid of a green line on a TV screen by checking the picture settings. Check the picture settings Image: pesagoto Try out a different device so that you can be sure that the specific device is the one causing the problem. If the device is defective, you will have to fix or replace it. External devices can include a Blu-ray player, gaming console, or set-top box. The lines can also occur if your external device is faulty. Verify that the picture format settings for your external device match the settings for your TV.Change the cords if you have a replacement.Check that you have secured all cables at both the external device and your TV.Check your cable connectionsĪ faulty cable or one you have not fastened securely to the input or output ports can disrupt the signal and cause vertical or horizontal lines. Once done, turn your TV ON and see whether you have fixed the issue. You can fix black vertical lines on a TV screen by simply power-cycling the device. Troubleshooting vertical lines on your TV screen But hardware problems require you to seek assistance from the device manufacturer or technician. Software issues are easy to troubleshoot. Understand that lines on a TV screen can either be a hardware or software issue. You can also try changing channels to determine whether the lines appear on all channels. Start by testing the picture, check your cable connections, and verify that your external devices are working well. When you see black vertical lines on your TV screen, the first step is to identify the primary cause of the problem. But another cause could be the picture does not fit the screen exactly. In other cases, it could mean you have not connected the HDMI cable well, or there is a poor connection between the processing board and the panel. When that happens, it means there is an underlying issue causing the problem.įor example, it could signal that the power supply is either failing or faulty. It is not common for a TV to display vertical lines.
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