Samsung Smart TV Black Line on Screen – Fixing Guide

Did you know that exposure to certain environmental factors can cause black lines to appear on your Samsung Smart TV screen? These pesky black lines can be a frustrating distraction when you’re trying to enjoy your favourite shows or movies. But fear not, because in this comprehensive guide, we’ll show you step-by-step how to troubleshoot and fix these irritating screen line issues.

We will help you find out why there are black lines on your screen and show you how to fix it. Our guide will tell you what might be causing the problem and how to solve it. Whether it’s a bad connection or a broken part, we’ll help you figure it out and fix it.

So, if you’re tired of those distracting black lines on your Samsung Smart TV screen, keep reading for expert tips and tricks that will have your TV looking brand new again.

Identifying the Black Line Issue on Samsung TVs

Understanding Vertical and Horizontal Lines

Vertical and horizontal lines on your Samsung Smart TV screen can indicate different types of issues. It’s important to understand the difference between them to effectively diagnose and resolve the problem.

  • Vertical lines usually point towards a hardware issue within the TV, whether it’s a video test or picture test. These lines run from top to bottom and are often caused by issues with the display panel or internal components.

  • Horizontal lines in pictures and videos are typically caused by software issues. They go from left to right and happen when the firmware is old or the device doesn’t work well with other things.

Differentiating between vertical and horizontal lines is crucial because it helps you narrow down the potential causes of the issue. By identifying whether it’s a hardware or software problem, you can take appropriate steps to address it effectively.

Performing a Picture Test for Diagnosis

To further diagnose the issue, you can perform a Picture Test on your Samsung Smart TV. This test will help determine if the problem lies with the TV’s hardware or software. The steps to perform a Picture Test may vary depending on the model of your TV. Here are the general steps for different models:

2023 Model TVs:

  • Press the Home button on the TV remote control and select Settings.
  • Navigate to All Settings, then select Support.
  • Go to Device Care and select Self Diagnosis.
  • Scroll across and select Picture Test or Video Test.

2022 Model TVs:

  • Press the Home button on the remote control and select Menu.
  • Navigate to Settings > All Settings.
  • Select Support > Device Care.
  • Choose Self Diagnosis and scroll across to Picture Test or Video Test.

2020 – 2021 Model TVs:

  • Press the Home button on the Samsung remote control and select Settings.
  • Scroll down to the Support tab and select Device Care.
  • Run a quick scan and select Self Diagnosis at the bottom of the screen.
  • Scroll across and select Picture Test.

2016 – 2019 Model TVs:

  • Press the Home button on the remote control and select Settings.
  • Scroll down and select Support.
  • Choose Self Diagnosis and then select Picture Test.

2015 Model TVs:

  • Press the Menu button on the remote control and select Support.
  • Go to Self Diagnosis and select Picture Test.

Performing the Picture Test will display test pictures on your Samsung Smart TV. If the lines are still visible during the test, it indicates a hardware issue, and it is recommended to contact Samsung customer care or a technician for further assistance.

Common Causes of Screen Lines

There are several common factors that can cause black lines to appear on your Samsung Smart TV screen:

  1. Loose connections: Ensure that all cables connecting your devices (such as Blu-ray players or gaming consoles) to the TV are securely plugged in. Loose connections can result in signal interference and lead to screen line issues.
  2. Faulty cables: Damaged or faulty HDMI or AV cables can also cause black lines on your TV screen. Try using different cables to test if the issue with vertical lines persists.
  3. Outdated firmware: Check if your Samsung Smart TV has the latest firmware installed. Outdated firmware can sometimes cause compatibility issues, resulting in screen line problems.
  4. External devices: Black lines may be caused by a specific external device connected to your TV. Disconnect each test device one by one and observe if the lines disappear.

By considering these common causes, you can troubleshoot and identify the root of the problem with black lines on your Samsung Smart TV screen more effectively.

Check the Input Source and Connection

If the lines are not visible during the Picture Test, the next step is to check the input source and connection. Ensure that the video cable or HDMI is properly connected to the TV and the source device. Sometimes, a loose or faulty connection can cause black lines on the screen. Disconnect and reconnect the cables to see if the issue is resolved.

Test with a Different Source

To rule out any issues with the connected source device, you can test your Samsung Smart TV with a different source. Connect a USB device or play a multimedia file through USB to check if the black lines are still visible on the TV screen. If the lines persist, it indicates a problem with the TV itself.

Technical Support for Samsung TV Line Issues

If you’re experiencing a black line on your Samsung Smart TV screen, don’t worry – there are ways to resolve this issue.

Contacting Customer Support for Assistance

When faced with screen line problems on your Samsung Smart TV, reaching out to their customer support team is a great first step. By contacting customer support, you can access expert guidance and potential solutions to address the issue.

To get in touch with Samsung’s support team, follow these steps:

  1. Visit the official Samsung website.
  2. Navigate to the “Support” or “Contact Us” section.
  3. Look for the contact information provided, such as phone numbers or email addresses.
  4. Choose your preferred method of communication and reach out to them.

By contacting customer support, you can explain the problem you’re facing in detail and receive personalized assistance from knowledgeable technicians who specialize in resolving screen line issues.

Utilizing Remote Service Options

Samsung offers convenient remote service options that allow technicians to diagnose and troubleshoot screen line issues without physically visiting your home. This saves time and ensures efficient assistance right from the comfort of your living room.

To take advantage of remote services for troubleshooting screen line problems:

  1. Contact Samsung’s customer support as mentioned earlier.
  2. Inquire about their remote service options.
  3. Follow any instructions provided by the support representative regarding setting up a remote session.

During the remote session, a technician will connect to your Samsung Smart TV remotely using specialized software or tools. They will then analyze the issue and work towards resolving it while guiding you through each step of the process.

Accessing Online Support Resources

Samsung provides an array of online resources that can be immensely helpful when dealing with screen line issues on your Smart TV. These resources include user manuals, FAQs (Frequently Asked Questions), troubleshooting guides, and more.

To access these online support resources:

  1. Visit the official Samsung website.
  2. Look for the “Support” or “Help” section.
  3. Browse through the available resources related to screen line problems.
  4. Utilize the user manuals, FAQs, and troubleshooting guides to find step-by-step instructions and helpful information.

By exploring these online support resources, you can gain a deeper understanding of the issue you’re facing and potentially find solutions that you can implement on your own.

Why Is There A Thin Black Line On My TV Screen?

  • TV’s Main Board Failure
  • Faulty Integrated Circuit
  • Screen Malfunction
  • Defective Bottom Buffer Board
  • Poor Connection between the TV Panel and Processing Board

Fix Samsung Smart TV Black Line on Screen

TV’s Main Board Failure

Samsung Smart TV Black Line on Screen

One of the main causes of the black line on the left side of the Samsung TV is the failing mainboard. The TV receives its electricity from the mainboard.

Thus, a single vertical line on the TV screen could appear if there is a problem with the power board. The following are the key causes:

  1. Electrolytic capacitors on the power supply board failed.
  2. The board’s internal joints are dry.
  3. Unsecure connection
  4. the faulty mainboard in question
  5. voltage swings, electrical jolts, or spikes
  6. Dust and particles build as the board moves.
  7. The board’s swollen, distorted, or burned areas

How to Fix TV’s Main Board Failure

The key to solving this problem is to fix the broken power board. But first, take off the TV’s backset and inspect the primary panel to determine if it’s the real problem. Other methods of repair include:

  • The electrolytic capacitors on the power supply board of your TV should be replaced.
  • Check for dry joints and tighten any slack joints.
  • Swap out the damaged main board.
  • Make sure the circuit board is fixed and that there are no voltage fluctuations in your home’s energy.
  • Clean the board properly of all dust, filth, and debris.
  • Replace the charred board after looking for any bent or scorched areas.

Poor Bottom Buffer Board

Samsung Smart TV Black Line on Screen

Ribbon cables go across the bottom of the thin board of your TV. And the bottom panel is where the wires are attached.

Due to a malfunctioning bottom panel or buffer board, you may currently notice a thick black horizontal line on the Samsung TV screen. Its root causes are:

  • Ribbon cables that have been misplaced
  • Corroded or damaged ribbon cables
  • Damage to the bottom buffer board

How to Fix Poor Bottom Buffer Board

  • Reposition or properly install the ribbon cables.
  • Replace the ribbon cables that are rusted or damaged.
  • To replace the outdated buffer board, get a new one.
  • Take assistance from a professional if disassembling the buffer board makes you uneasy.

Faulty Integrated Circuit

Faulty Integrated Circuit 1

IC is a tiny silicon or semi-conductor chip, yet it is one of the most crucial components of the television. Its failure has the following things to answer for:

  • IC exposed to excessive voltage and current levels as a result of electrical stress
  • Faulty power supplies
  • Wrong positioning of IC
  • TV internal overheating Manufacturing faults

How to Fix Faulty Integrated Circuit

  • Replace the defective board to address the electrical overstress issue. Check the power supply board or circuit board.
  • Replace any ICs that are physically faulty or have manufacturing flaws.
  • Ensure the ICs are positioned correctly on the TV’s mainboard.
  • Make sure there are no electrical surges or high voltages that could cause your TV to overheat.

Screen Malfunction

This problem with the thin black lines on your TV screen is the result of screen damage. Its primary contributing factors are:

  • A poor signal is reaching the screen.
  • Faulty connections between the cable box and the TV as well as between the electrical outlet and the cable box
  • Screen input that is incorrect
  • The TV screen is impacted by power spikes.
  • Components of a damaged screen
  • Faulty main circuit board or power supply board
  • Broken or chipped screen

How to Fix Screen Malfunction

  • Ensure a tight and sufficient connection between the electrical outlet and the cable box, as well as between the cable box and the TV, to ensure your Samsung TV screen is receiving the right signal.
  • Verify that the appropriate input is being sent to your TV and that the screen’s settings are appropriate.
  • Check your home’s voltage stability and the power surge problem.
  • Replace or fix the faulty circuit board.
  • Change the cracked or shattered screen.

Poor Connection

By going to the TV screen, the flat ribbon wires link the processing board and panel. You will therefore notice the vertical line on the TV screen if there is a connectivity problem. Leading contributors to this include:

  • Flat ribbon cables don’t function properly.
  • Ribbon connector that’s loose
  • the board’s electrodes have been damaged
  • Ribbon connection drivers that are corroded or damaged
  • The screen is not receiving enough power from Power board.
  • faulty LCD displays

How to Fix Poor Connection

To make sure the TV panel and processing board are connected properly, remove the TV’s back. Check the flat ribbons that connect these two after that. Other methods of repair include:

  • The flat-ribbon cables should be taken out and then put back in.
  • The ribbon connector, tighten it
  • Replace the board’s corroded ribbon connection drivers and damaged electrodes.
  • Ensure that the central processor unit is providing sufficient power to your Samsung TV screen.
  • Replace the damaged LCD panels after inspecting them.

Frequently Asked Questions:

What causes a black line on a Samsung Smart TV screen?

Several things, including a bad cable connection, a cracked screen, or a hardware problem, can be the root of this problem.

How can I fix a black line on my Samsung Smart TV screen?

You can attempt to update the firmware, reset the TV, and check and tighten the cable connections. It might be required to get the TV serviced if these methods don’t address the problem.

Is it covered by warranty?

Depending on the model and the date of purchase, the warranty coverage for a black line on a Samsung Smart TV screen may change. It’s recommended to refer to the TV’s warranty information or get in touch with Samsung support.

Can a black line on the screen be repaired?

A black line on a Samsung Smart TV screen may occasionally be able to be fixed. In some circumstances, though, the harm can be too great, necessitating the purchase of a new TV.

Is it a common issue with Samsung Smart TVs?

Black lines on Samsung Smart TV screens are not a common issue, but they can occur due to various reasons.

Can a black line on the screen affect the performance of the TV?

It is true that a black line on a Samsung Smart TV screen might impair the TV’s functionality and the watching experience.

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About The Author

Hassan Zaka

I am an expert in accounting and possess diverse experience in technical writing. I have written for various industries on topics such as finance, business, and technology. My writing style is clear and simple, and I utilize infographics and diagrams to make my writing more engaging. I can be a valuable asset to any organization in need of technical writing services.

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