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Samsung TV Horizontal Lines on Screen

If you have a Samsung TV, you probably agree that it has some of the most outstanding images and display quality. Primarily, for this reason, Samsung TVs are popular among consumers. However, just like any other technical gadget, your Samsung TV might experience a malfunction (like horizontal lines on the screen) at some point.

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Horizontal lines on the screen of Samsung TVs can be caused by picture settings or the TV screen might be physically damaged. Other than that, problems in the T–CON board, or the display cables attached may also be the culprit behind the horizontal lines.

If you’re wondering how this issue can be resolved or whether you can do it yourself or not, fret not, I aim to help you with that. Read on as I discuss the elements that could potentially contribute to this issue and how to deal with them.

What Causes Horizontal Lines on Your Samsung TV Screen?

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If you have not inflicted any physical damage or spilled water on your Samsung TV, the following are the most common reasons why your TV is displaying horizontal lines on its screen.

Main Board Issue

The main board, also known as the motherboard, is the core of any electronic device, your TV is no exception. Naturally, if there is any issue with the mainboard, you can’t expect your Samsung TV to work as seamlessly as it did before.

The horizontal lines you see on the display of your TV could just be an issue with the mainboard manifesting itself on the screen. Therefore, I would recommend that you consult a professional or call Samsung support to see if they can help.

T-CON Board Issue

The T-CON board on your TV is responsible for determining how the picture displays on the screen of the TV. One of the most common reasons why your TV is displaying horizontal lines could be due to the loose connection of the T-CON board with the display panel or if the T-CON board is receiving insufficient voltage.

Either of these problems can cause your TV to display Horizontal lines. One way to check if the T-CON is at fault for the lines is that you can tap the back of the TV gently. If the display improves, you can confidently say that the issue is with the board.

Before you place an order for a T-CON board, I would recommend you consult a professional or contact Samsung customer support for further guidance.

Software Problem

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Believe it or not, the culprit behind your horizontal lines could be a software issue instead a hardware one. These software issues are usually the result of bugs or glitches that are not only capable of using horizontal/vertical lines but also cause other display issues such as blurry or stacked images.

Developers regularly roll out new software updates that are aimed at fixing these bugs and glitches and improving your overall experience. Therefore, I would recommend that you try updating your software and see if it resolves your issue.

To update, head on over to your Settings, navigate to Support, and select Software Update. Click on Update Now to start downloading the update.

How To Fix The Horizontal Lines On Your Samsung TV

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Let’s first discuss the remedies that can effectively fix horizontal lines appearing on your TV.

Gizmo Geek Guide posted this on April 5, 2023 as the original owner of this article.

Does Adjusting Picture Settings Remove Horizontal Lines?

The horizontal static lines can occasionally be seen when your Samsung TV’s resolution settings differ from the size of the images on the screen.

Yes, changing your Samsung TV’s picture settings can remove horizontal lines. However, to set the picture settings, knowledge of the screen aspect ratio is required.

Although some TVs offer resolutions, you may set the screen resolution as per the requirement of the media you are playing.

How To Adjust Picture Settings?

Before changing the settings, ensure you know the resolution or aspect ratio required for the media you’re playing on your Samsung TV.

Step 1: Navigate to Settings → Picture → Picture Size.

Step 2: Choose a larger or lower picture size as per requirement.

Horizontal Lines Appear Due To Physical Damage

Physical damage can be one of the causes of horizontal lines on your Samsung TV screen. A damaged TV screen will usually be what causes horizontal lines on your Samsung TV.

You may need to replace the screen or the backlight to fix the screen damage. To do so, you should have some technical experience. Otherwise, get the job done by a repair expert.

Step 1: Find the replacement part as per your TV model.

Step 2: Open the back panel by unscrewing the screws.

Gizmo Geek Guide uploaded this as an original article on April 5, 2023.

Step 3: Disconnect all the cables.

Step 4: Take out the damaged screen or backlight.

Step 5: Replace and fasten the new parts.

While repairing water or moisture-damaged TVs, make sure that you completely dry the internals before using the TV again.

Do Issues In T–CON Board Cause Horizontal Lines On The TV Screen?

Modern TVs have a T-Con board fitted to link the main board to the display screen. It produces and transmits horizontal and vertical signals to the display panel.

Issues in the T–CON board can cause horizontal lines as it uses ribbon wires that are taped together. These ribbon wires become loose over time from dust and other materials coming through the TV vents.

How To Fix The T–Con Board Issue?

You can fix the T–CON board issue with these simple steps. However, if the T–CON board is damaged, you must replace it.

Step 1: Unscrew the back panel of the TV and open it.

Step 2: Use compressed air to clean out any dust or debris.

Step 3: Reset the ribbon cables connected to the T–CON board.

Issues In Connecting Cables Causing Wavy Horizontal Lines

Does wiggling your connecting cables remove the wavy horizontal lines for a moment? If yes, then the horizontal lines you are witnessing are due to the issue in the connecting cables.

Issues in connecting cables, such as HDMI or VGA, can cause horizontal lines. The problem might be that the HDMI or VGA cables are loose, unplugged, or faulty. Dusty input ports can also cause horizontal wavy lines.

The solution to this problem is that you may unplug and plug in the HDMI or VGA cable again. If the cable is loose from the port, you may change the cable or, in the worst case, replace the input port of your TV.

Other Ways To Fix Horizontal Lines

These are some different ways you can try to fix horizontal lines caused by your Samsung TV’s software:

Update The TV Firmware

Update your Samsung TV’s firmware, as older versions might not be able to handle images with more excellent resolution and may interfere with how your TV displays graphics. Additionally, if you don’t update your firmware, you will miss out on new features that are released occasionally.

Perform A Factory Reset

Horizontal lines on your Samsung TV could indicate a problem with the TV source or the graphic driver. The very last resort for you should be a factory reset. Resetting will erase any saved data on your Samsung TV. After the factory reset, you must configure the data from scratch.

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Gizmo Geek Guide published this original article on April 5, 2023.

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