How To Fix Horizontal Lines On LG TV Screen?(9 Easy Ways)

If your LG TV screen has horizontal lines, you may be wondering what is causing the issue and how to fix it. 

In this blog post, we’ll take a look at some of the most common causes of horizontal lines on LG TVs and offer some solutions on how to fix them.

What Causes Horizontal Lines On LG TV Screen?

There are a few different things that can cause horizontal lines on your LG TV screen.

Here are some of the most common culprits:

1. Loose or damaged HDMI/DisplayPort connection – If your HDMI or DisplayPort cable is not securely connected to your TV, it can cause interference and result in horizontal lines appearing on the screen. Check the connection and make sure it is tight and secure.
2. Poor signal quality – If you are using an antenna to receive TV signals, poor signal quality can sometimes cause horizontal lines to appear on the screen. Try moving the antenna around or investing in a better quality antenna to see if that improves the situation.
3. Defective LCD panel – In some cases, a defective LCD panel can cause horizontal lines to appear on the screen. If you have ruled out all other possible causes, this may be the issue, and you will need to contact LG for assistance.

How To Fix Horizontal Lines On LG TV Screen?

There are a few things you can try to fix horizontal lines on your LG TV screen:

1. Check Signal Quality

If you are using an antenna to receive TV signals, poor signal quality can sometimes cause horizontal lines to appear on the screen.

To begin with, switch to some other channel and see if the horizontal lines remain. If not, the lines were caused by the poor quality of the channel you were trying to watch.

Try moving the antenna around or investing in a better quality antenna to see if that improves the situation.

2. Run the Picture Test

Luckily, most LG TVs have this useful feature that will allow you to diagnose your picture quality and detect the issues, if there are any.

If you are sure that the signal quality is good, you can try running the picture test next to find out what’s causing the issue.

1. On your LG TV, go to Settings.
2. Click Picture.
3. Choose Picture Test.

If the picture you see during this process is clear, check the cables connected to the TV. We mentioned it in the next step.

If you can still see the horizontal lines, that, unfortunately, means that your LCD panel might need replacing.

3. Check Connections

Make sure the HDMI or DisplayPort cable is securely connected and that there are no loose wires anywhere.

You will need to inspect all the cables connected to your TV.

We recommend unplugging them, cleaning them from any dust or dirt, and then reconnecting them back to the TV.

You can also knock or tap on the back of your TV. This might help if the issue was caused by the internal cable connections.

4. Clean The Dust

Now that we cleaned the dust on the cables, we should do the same with the internal part of the LG TV.

In this step, all you need to do is to place your TV on a flat surface, unscrew the back of your TV, and carefully clean any dust you can see on the internal parts of the TV.

5. Update The Software

Sometimes there are some new updates available that might fix your problems, go to the Settings of your LG TV, and check for the available updates.

1. Go to the General menu.
2. Scroll down and select About this TV.
3. Check that  Allow automatic updates is on.
4. Click Check for updates.
5. If an update is found, follow the steps on the screen to download and install it.

Now that your TV has all the fastest updates, try watching some program and see if the issue with the lines is gone.

6. Change The Settings

This will only work if your TV’s internal parts aren’t damaged and the issue is caused by the misconfiguration in the settings.

Try switching the TV input from different HDMI ports or AV ports. Next, change the picture resolution.

Hopefully, this will fix the picture quality for you.

7. Restart The TV

If connections and signal quality are not the issue, try restarting your TV.

1. Unplug your TV from the wall outlet.
2. Wait for about 1 minute.
3. Plug it in again.

This can fix minor glitches that may be causing horizontal lines to appear on the screen.

8. Factory Reset The TV

If restarting your TV does not fix the issue, you can try doing a factory reset.

1. Go to Home.
2. Settings.
3. General Menu.
4. Reset To Initial Settings.

This will reset your TV to its default settings and may fix the problem.

9. Contact LG

If you have tried all of the above and are still seeing horizontal lines on your LG TV screen, it is likely that there is a problem with the LCD panel, T-Con board, or row drivers.

In this case, you will need to contact LG for assistance.

We suggest you don’t try to fix it yourself, since it’s a pretty complicated process where many things can go wrong.

Hopefully, this blog post has helped you to understand what can cause horizontal lines on LG TV screens and how to fix the problem.

Conclusion

If you are experiencing this issue with your LG TV, there are a few possible solutions.

The horizontal lines on your LG TV mean that there is likely to be a problem with the LCD panel, T-Con board, row drivers, or the internal TV connections.

We’ve outlined the most common fixes for your screen that you can try to perform at home. They are safe and won’t do any further damage to the TV.

However, if there is damage to the internal parts of your LG TV, there is not much you can do. It’s best to just take it in for repairs.

Hopefully, one of these solutions will help to clear up the image on your TV.