lcd screen black lines brands

With the back panel removed at the top of the casing you will see a long circuit board (Usually about the length of the screen) There will be a number of ribbon cables plugged into it, coming from the front of the casing, the cables power different sections of your LCD screen.

Now with the TV propped up power it on and play something as you normally would, find the ribbon cable at the top that is closest to the lines on the screen, carefully you should be able to move the cable a little, see if the screen corrects itself.

TV screen lines are an irritating occurrence, and many different issues with the TV can cause them. This article will go over what causes this, whether or not you can fix it depending on the cause, and how to fix it.

When any part of a TV"s display gets damaged, corrupted, or is defective, it can cause lines to appear on the screen. Some TV parts that can cause horizontal lines to appear are the LCD panel, T-Con board, or row drivers.

Issues with these parts can happen for many reasons, and the way your lines appear can tell you a lot about what"s wrong. If the lines are new, one of these parts was likely damaged.

If you"re seeing colored horizontal lines, it may be because of the T-Con board. If other parts don"t seem to be an issue, this part of the TV could be causing the lines.

If lines appear on your TV, you"ll want to inspect the TV itself. You can fix some issues that cause lines to appear, but others may require a professional or a new TV altogether. Some of the most common causes of horizontal lines are:

LCD screen damage. The LCD provides your TV display with light. If you"re handy, you might be able to fix this by doing a little work with the insides of the TV, which you can read about below.

Knock or tap on the back of your TV. If the issue is with cable connections, this could solve the problem. It could also indicate a problem with your T-Con board. It won"t fix the issue, and the lines may reappear, but it can give some insight into the problem. If it"s your T-Con board, you"ll want to have T-Con replaced.

Take a look at the LCD screen. If it"s damaged, you may want to get the screen repaired or replaced. It may be a less costly option than buying a new TV altogether.

Vertical lines on a TV appear for the same reasons as horizontal lines: loose cables and wires, screen damage, or a faulty T-Con board. Leaving the TV turned on for too long can also cause vertical lines.

The steps for fixing lines on your TV will also work to fix TV glitches like flicker and stutter. For example, check the cables and connectors and ensure there"s no issue with your input device.

If your TV screen looks blue, it could be faulty connections, a defective backlight, or incorrect color settings. Some LED TVs naturally have a blue tint, which you can offset by changing the color temperature.

To fix screen burn on a TV, adjust the brightness settings and enable pixel-shift. Sometimes playing a colorful video with fast-moving action for half an hour might help.

Watching your mobile screen with those white or black vertical/horizontal lines is annoying. In short, it’s tough to use a phone with these lines appearing on the screen. Typically, this issue is associated with the LCD, caused by a faulty hardware component in your device due to some accidental fall or water damage. Phones with such damages can only be fixed at a phone repair center.

Before you head on to the fixes, let’s make your phone data safe. Sometimes, these lines are irreversible, and even the solutions you’re up to try may be followed by some sort of data loss. Therefore, the first thing you should do is make a backup of important files and apps on your device. Some popular ways for data back in Android devices are via:

If there’re white lines on the screen, this solution may prove effective. A battery cycle is when you charge a mobile to 100% and let it drain to 0% again. Usually, the lines will disappear soon as you charge the battery fully.

If the above methods don’t work, it’s time to try this masterstroke. Using your phone in a safe mode will confirm if the lines are because of some faulty app or software.

Check if the lines are gone! If yes (hopefully), then a third-party app is the culprit. Now uninstall the latest downloaded applications until the issue is gone. OR you should try the Solution:4

Suppose the lines are still visible. Then the issue is most likely due to some hardware failure- and the best option for you is to take your device to a reliable repair center.

If the horizontal or vertical lines still appear on your phone screen after trying all the above methods, you better take your device to a reliable mobile repair store near you. Most likely, it’s a faulty hardware component that needs to be repaired or replaced. Here, we would suggest you opt for only an authorized service center, as this will ensure flawless repair at a reasonable cost. Besides, if any of the components have to be replaced, they will be genuine and as per your specific requirements.

While black lines on a monitor could be a signifier of a failing monitor, minor issues -- like a loose video cable or an outdated graphics driver -- could also be at fault. The video cable transfers data from the video card to the monitor; if the cable is loose, strange visual effects, like discoloration or lines on the screen, can appear. Outdated or corrupt video drivers can also alter video performance; updating the driver to the latest version can fix bugs that are causing problems with the monitor.

Check the connection between the monitor and the computer. Confirm that the VGA, DVI or HDMI cable is secured to the back of the screen and the PC. Tighten the thumbscrews on the cable connectors, if applicable.

Change the screen resolution. Go to "Start," then "Control Panel." Click "Adjust Screen Resolution." Click the drop-down menu next to "Resolution," then drag the slider to the "Recommended" setting.

Click "OK." If the black lines on the monitor persist, click the back button until you reach the main menu of the Control Panel. Click "Hardware and Sound." Click "Device Manager."

Restart your computer when the process is complete. If the black lines are still on the screen, unplug the monitor from the PC and connect it to another computer. If the black lines disappear when the monitor is connected to another PC, you may need to replace the video card in your computer to fix the black lines.

Connect a new VGA, DVI or HDMI cable to the PC and monitor if the black lines are visible on the other computer. If replacing the video cable doesn"t fix the black lines on the screen, the monitor may need to be replaced.

If you"re using a laptop, connect an external monitor to the computer. If the black lines aren"t visible on the external screen, the laptop screen may need to be replaced. If the black lines are also visible on the external screen, the video card or motherboard may need to be replaced.

LCD display screens on notebooks, monitors and TVs alike are made up of two thin layers of glass containing liquid crystal material between them. When the glass becomes damaged, debris infiltrates the crystal layer or another issue occurs with the display function, this causes vertical lines of color to appear when the monitor is fully illuminated. These lines are either permanent due to internal failure or temporary due to faulty display connections.

Diagonal, jagged and both horizontal and vertical lines typically indicate panel damage. A single set of horizontal lines could indicate damage, a graphics system failure, or loose internal video cables. Broken signals from cables or graphics hardware creates impurities in reproducing an image on an LCD screen, conditions that often manifest in the form of vertical or horizontal lines of color.

If the lines are infrequent in their appearance, or are not permanently visible, a loose video cable is often the problem. As devices are carried, dropped and bumped, cables become loose even in laptops. Laptops are built with casing to absorb and dissipate small shocks, but even some bumps can cause cables to become loose. Even televisions and monitors, while often stationary, can still have loose cables if not properly seated.

If you"ve ever opened your laptop to clean underneath the keyboard, you might see numerous things like food particles, hair or even dust. On the rear of monitors and televisions, they also contain a series of holes or slits that dust can creep into the inner workings and cause problems. Regularly cleaning out a laptop"s keyboard and dusting off the rear of a monitor or television can greatly extend its useful life. This is a preventative measure and rarely works in removing any existing lines on a screen.

The first step in troubleshooting is determining the extent of the damage. For external monitors or televisions, re-seat any video input cables or consider replacing the cables with new ones. Should the lines continue to display, this indicates an internal failure, something few consumers are able to fix on their own. Instructions exist online for individual products to disassemble a monitor, laptop or television to replace broken parts, but the most suggested course of action is shipping it to the manufacturer for a warranty repair. If no warranty is active for the device, consumers are then advised to replace the device entirely with a new one, as this is usually the cheapest solution. Lines on an LCD panel indicate the LCD screen or screen ribbon cable need to be replaced, parts that can cost several hundred dollars.

Vertical and horizontal lines on the best desktop monitors can ruin the immersive effect from your display, which is especially frustrating if you’ve invested into your monitor, like one of the best curved gaming monitors. To find out how to fix annoying vertical lines or horizontal lines on an external monitor, you’ll first want to test the picture to find out what causes these lines on the computer monitor, whether the problem is from the PC, cable box or another input source, or if the fault is with the monitor, its LCD panel or internal hardware itself. And while on the topic of “vertical” lines, there are vertical monitors that exist to help make certain professions or hobbies more efficient, like coding and streaming.

Before attempting any other troubleshooting, such as fixing black bars on the side of your monitor, the first step toward finding solutions for this desktop monitor problem is to isolate the source of the issue.

The first option is to test out the image on your favorite computer screen without any peripherals connected. To do this, disconnect all cable connections and use the remote control or the control panel to disconnect Bluetooth and WiFi, if your external monitor is so equipped. If there are no vertical or horizontal lines on the default picture or menu screen, then the problem is likely due to your PC or input device, or to your cable connections. If the lines still appear, then the issue is likely to be with the external monitor itself.

If the monitor shows lines when not connected to any cables or input method, the problem is likely with the monitor itself. Image issues such as lines can be caused by damaged internal ribbon cables or the LCD panel itself. If this is the case, the repair process will depend on what the hardware problem is, whether you have a flat or curved computer monitor. If you see light leaking on the edges of your monitor screen, you may have blacklight bleed, which you can learn about in our resource content on what is blacklight bleed.

If the lines go away when your external monitor has no input, then you’ll want to look for a connection issue or an issue with your PC or laptop’s graphics drivers, driver settings, or picture settings. Additionally, you may want to check for any input lag issues with your monitor at this time.

Make sure all cables are connected securely. A loose connector can cause various picture issues including gray lines, pink lines or green lines.You may want to unplug your monitor from the input device and check the condition of the ports. You may be able to see if there are any bent or broken pins in the connectors of these input terminals. Double-check the cables if you have two monitors. If you need more organization in your space, consider the best dual monitor mount. Don’t use a paperclip or other metal object to try and clear out a VGA terminal.

A screen resolution adjustment may also help. If the device picture settings are not compatible with the monitor’s native resolution, you may see errors such as lines on the screen. On a windows PC, setting a display resolution or refresh rate that is not supported can damage a monitor.This is more often a risk with older CRT monitors.

Warning: If the device picture settings are not compatible with the monitor’s native resolution, you may see errors such as lines on the screen. On a windows PC, setting a display resolution or refresh rate that is not supported can damage a monitor

Explanation of why pulse width modulated backlighting is used, and its side-effects, “Pulse Width Modulation on LCD monitors”, TFT Central. Retrieved June 2012.

Vizio Smart TVs are known for their value for money. However, some users have been reporting that they are experiencing horizontal lines on the screen.

Another common cause is a problem with the TV panel. If there is a problem with the hardware, it can also cause horizontal lines to appear on the screen.

If you have a new TV, the screen maybe is just dirty or dusty. Still, you need the help of a technician as you won’t be able to peek into the panel yourself and it is also not recommended to do it on your own.

Lines that can appear on your TV can be horizontal lines running horizontally across your TV’s width or they can be colored vertical lines running vertically on your Vizio TV display screen.

When a horizontal line appears on the screen of your Vizio TV, it can be either a problem with your TV, or it can be a problem with your cable or satellite box.

If the horizontal lines are not caused by the cable or satellite box, then the problem is with your Vizio TV. A black horizontal line is not always a panel issue.

You can connect your Laptop by connecting the HDMI cable to it for a while and check the picture quality and whether it is showing the same horizontal lines on your Vizio Smart TV Screen.

If you are facing the issue of the horizontal lines on your Vizio TV screen and you want to fix this issue, then you need to update the firmware via their OTA updates to the latest version.

If you haven’t yet, you can easily do this by using your remote control going to the Home screen and then to the Settings menu screen. You will find the option to check for updates in the Support area. If there are updates available, download them.

Either you need to compromise on your viewing experience by viewing the horizontal line on your screen or you need to replace your Display panel to eliminate any horizontal line.

If the panel is an LCD panel, it will be cheaper and it would cost more to replace if it is an LED panel. Also, costlier if you have an OLED panel or OLED panel.

This is a very common problem, and I hope that I was able to help you to fix horizontal lines. This is also seen in other TVs like Philips Tv, Sony TV, Samsung LED TV, LG TV, Panasonic TV, and almost every brand of TV.

Anirban Saha is an Engineer with a specialization in Electronics and Communication. He is the Founder and Editor of techbullish.com. He has expertise in electronics, software development, gadgets, and computer peripherals. Anirban loves to share his knowledge to help people to help choose the right gadgets, troubleshoot gadgets, and more. Read more about our Editorial Guidelines.

Did your Samsung TV suddenly develop horizontal lines on the screen? This can be the first indication that it’s time to do troubleshooting to fix your Samsung TV. It is a common problem affecting most Samsung TVs over a certain age, but it is easy to fix.

A large number of users report horizontal lines on the screen, banding, or color bleeding issues. This post is to help you fix this problem on your Samsung TV.

While there are many brands and models of smart TVs on the market, it’s true that Samsung provides the best. It’s a leading brand in quality and innovation, producing displays that deliver natural and vivid color and impeccable contrast as well perfect black levels.

Samsung TV is great for its superb picture quality, extensive content partnerships and a wide range of models to choose from. But there’s one issue that seems to be recurring with some customers — a horizontal line has appeared on the screen of their smart TV.

If you’re experiencing horizontal lines on your Samsung smart TV, it’s possible that thesource is to blame or that an input needs adjusting. Most of the time, the source is to blame for unclear images or a distorted layout — for example, a blurry disc might mean that you need to adjust your TV’s settings.

If the horizontal lines on your TV screen have you worried, take some deep breathes. Straightening out the lines is a breeze. Start by changing the resolution of your TV. Next, try adjusting the brightness or contrast. You can also restart the device and adjust color levels and temperature to see if that fixes the problem. If these suggestions don’t work, consider getting professional help.

One negative issue that has been brought up is a black line that appears for some on the screen. While this doesn’t affect performance, it does make any image look distorted and could be a potential deal-breaker for those looking for perfection in their TV.

If the LCD screen displays horizontal lines, it could be a sign of a failing graphic card. The graphics card is an essential part of the display system and is responsible for converting images from the video signal into pixels that can be displayed on the screen. When this system fails, input signals are not converted properly and will result in an array of strange-looking lines or dots on the screen.

We’re sure that everyone has run into this one: you’re binge-watching your favorite show on Netflix, but after the first half hour, the horizontal line from hell begins to creep up the screen. A nuisance for sure, but not the end of the world. There are several ways you can use to try and fix this issue.

Input Cable is Not Properly Connected: When you plug the input cable into your smart TV and smart hub, sometimes the picture doesn’t load on the screen. This is usually fixed by replugging the cable into your smart tv and smart hub. Sometimes, it helps to unplug your TV for a few minutes and then plug it back in.

Image is Too Big or Too Small: If you’re seeing a screen full of lines, pixels, or a message about changing the resolution with your smart TV, don’t fret. This is a common issue that can be fixed with some troubleshooting.

If you have a smart TV, you may notice that it has multiple resolutions. Usually, the smaller size is 720p with a higher refresh rate and a 4:3 aspect ratio; the bigger one is 1080p with a lower refresh rate and 16:9 aspect ratio. If your photo resolution differs from your TV’s resolution, it will lead to blurry images or lines on the screen.

Old Software: If your smart TV is outdated, you’re four times more likely to experience lines. Outdated graphic drivers can’t process high-resolution pictures that come with modern movies and TV shows.

The panel is Not Working: Every television has a display panel, which is the area that displays what you’re watching. Sometimes, the lines on your TV’s display panel are due to a faulty gate driver — a dedicated chip that helps power the screen. This part is linked to the TV’s motherboard, so you’ll need a professional technician to replace it.

The lines on your TV screen are moving? It’s a pretty common issue for Samsung smart TVs, but it’s easy to fix. There are three things you should check: your HDMI cable, your TV connection, and whether the issue is permanent or temporary.

If your TV screen has lines that flash on and off, it’s usually due to a loose connection in the HDMI port. To test this, plug your TV directly into your cable box or satellite. If you get a picture and sound, then it’s likely your Samsung smart TV. Also check all of the cables running to the TV, as they may be causing interference.

Check whether the other end of the HDMI cable is securely connected to the hub. If it’s securely connected, try reconnecting the HDMI cable — if the lines on your TV screen stop moving, then you can conclude that the HDMI cable is faulty and should be replaced.

If you notice permanent lines on the screen, then it is probably damaged. If lines remain on your Samsung TV screen, it means the LCD Panel is damaged. The next stage is to replace the panel with a new one. However, usually, this happens as a result of water damage, broken screen, or gate driver failure. We recommend visiting the nearest Samsung Service center to fix your TV.

The Picture Test is a feature that comes with all Samsung smart TVs. It helps to troubleshoot issues such as black, white or green colored spots on your screen caused by poor signals, loose connections and dim settings. Being able to get rid of these types of problems can be a huge benefit to you and your family’s viewing experience.

Samsung TVs have a picture test function that can be run to check for any issues with the TV. The way it works is that the TV displays a test pattern and the lines will shift around if there’s an issue. If you find that your TV has any issues, be sure to call Samsung for help.

You need to know that firmware isn’t usually responsible for display issues, such as horizontal lines. Sometimes, it’s not your display. Something as small as a firmware update can fix even the most stubborn of problems — so don’t give up! Follow your TV’s directions for a firmware update, and give it another try.

Rather than just providing a firmware update, Samsung included an important graphical update as well. This will ensure that your TV screen runs smoothly without any mysterious lines or blurs obscuring the picture.

The file will download and then install, so just follow the on-screen prompts until you’re done. If this doesn’t fix it, call Samsung’s customer service team.

If you have already updated your Samsung smart TV recently, but you are still experiencing the annoying vertical or horizontal lines on the screen, then it is likely that the problem comes from another source.

Samsung televisions are some of the best on the market, but they’re also pretty pricey. That’s why it’s so important to keep them in good condition — replacing a TV is an investment in your home entertainment. Fortunately, with a few simple steps, you can remove that pesky black line on your Samsung TV and keep it looking great for years to come.

Lines on the TV screen can cause a lot of problems, but they are pretty easy to fix. The first thing you have to do is figure out what kind of lines you’re seeing. If the lines are moving, it means there’s either a problem with your HDMI cable or DVD player — or there’s an issue with your TV’s internal circuitry.

The main cause of horizontal lines on the TV screen is a bad video cable. But why does it happen? When you press the “Source” button on your remote control, the TV looks for a signal. If there are horizontal lines on your TV screen and you’re using an HDMI cable, then the problem lies in the cable. Most often, this problem occurs because the cable is broken or has loose ends.

If you’re having trouble viewing your Samsung TV, you may be experiencing horizontal lines. This issue can stem from a few different components within the TV itself, including faulty software or loose internal wiring.

Horizontal lines also show up due to mechanical damage to the display. If this is the case, you’ll need to replace the damaged area of glass, which could involve an on-site repair with an authorized technician.

Horizontal lines on your smart TV screen may be caused by a defect in the TV’s hardware or it could simply be normal. Since you cannot physically inspect the TV and test this yourself, you will need to check the support site for your specific model of TV. Many of these lines will not remain permanently on the display; they may temporarily appear and disappear occasionally. This is due to something called “Picture Retention.”

Samsung Smart TVs have been known to suffer from persistent horizontal lines across the screen. These lines mar the image, even in moments when there’s no motion present on the screen. Sometimes caused by updates (which can be solved by downgrading), sometimes by loose wiring, and sometimes by mechanical damage, the issue is notorious for being hard to fix — and even more difficult to diagnose.

There are two main causes of lines appearing on the screen of a Samsung Smart TV: hardware and software. If the lines are permanent, it’s a hardware issue; if they’re moving, it’s a software issue that can be easily fixed with the troubleshooting methods below.

So, why there are green lines on a monitor? Well, several factors might be at play if the displays attached to your PC aren’t operating correctly. It’s conceivable that your adapter or cable connection is the problem. Change the cable if it doesn’t work. If nudging doesn’t work, try another.

Throughout this post, we’ll explain why green lines occur on your display and the best techniques to remedy them. The extra information will be invaluable in fixing all of your monitor’s green lining concerns. It’s time to delve in!

There are a variety of possible causes for horizontal green lines or vertical lines on your computer screen, from outdated video card drivers to damaged ribbon cables and improper video cable connections. To determine whether the problem is software or hardware, you may examine the BIOS settings.

When you see a green line on your computer screen, you should inspect your display for any faults, including all the connectors. There might be a problem with the cable causing the monitor’s color to lose signal.

Faulty graphics drivers might also cause problems with your monitor’s connection to the computer. However, although this is the most common symptom, it may also be seen in the form of green lines on a monitor.

Because Windows 10 does not contain the BIOS, any horizontal or vertical striations on your display problem result from a software problem. If you don’t see any horizontal or vertical lines on your Windows 10 computer screen, this is likely a hardware problem.

It’s possible that your computer’s drivers don’t cause the flickering green lines on your display if they occur immediately after the computer has started up and not on the initial screen while the machine is starting up.

This is the standard procedure to remove the green lines on the monitor, regardless of whether your motherboard is set to UEFI or a classic BIOS configuration:

Monitoring a computer’s refresh rate can help identify and correct problems with graphics performance. The monitor’s refresh rate refers to how often the screen updates its image. A slow refresh rate can cause visual artifacts, such as green lines, on the screen.

Collectively, these lines indicate that the monitor is not keeping up with the latest graphics rendering instructions. This can lead to an overall degraded experience when using the computer.

Knowing your screen resolution, even if you aren’t an engineer or a photographer. You can appreciate your multimedia activities better if you know what you have and what you can do. In Windows 10, you may verify your screen’s native resolution by following these steps:

Be sure to switch off your display when not in use. A screen saver program and turning off the display when it’s not in use will significantly prolong the monitor’s life.

There may be more to the problem with water damage than just a replacement screen, but it’s typically just a matter of getting a new LCD or OLED display.

Due to obsolete GPU drivers, the green lines on a Windows 10 laptop are standard. Using specialist driver update tools, you may repair this problem. One of the most prevalent reasons for this issue is a malfunctioning laptop display.

Your phone’s LCD might be damaged if you don’t mend a cracked screen right away. Damage to the LCD screen might occur if dust penetrates the screen cracks. Your phone’s LCD screen might be damaged if you drop it in water or other liquid.

That’s all about the green lines on the monitor from us. An external display with bothersome vertical lines or horizontal lines may be fixed by testing the image to determine what causes these lines on the computer monitor.

It doesn’t matter whether the computer, cable box, or any other input source is to blame; the monitor, its LCD screen, or internal hardware is to blame.

LED-backlit LCD TVs typically come in one of two sub-types of panels: Vertical Alignment (VA) or In-Plane Switching (IPS). VA panels tend to have much high contrast ratios, and therefore better black uniformity. IPS panels, on the other hand, have worse contrast ratios and suffer from more backlight issues that can affect black uniformity, including "IPS glow", which is a kind of "glow" effect that can be seen in the corners of IPS screens.

LED-backlit LCD TVs are prone to black uniformity issues, but OLED TVs can produce virtually perfect blacks because their pixels are self-emitting, and therefore don"t have the same limitations caused by improper backlight implementation. That means they don"t suffer from clouding or flashlighting as LED TVs do.

Poorly designed backlight placement. The type of backlight and its position directly affects the uniformity of the screen. The worst uniformity can be found on edge-lit LED TVs, because the LEDs are only on the edge of the screen. Full-array LED TVs have good uniformity because their LEDs are spread out across the whole screen. Some edge-lit TVs have great uniformity. You can learn more about different backlights here.

Non-uniform frame pressure. Both the LCD screen and the diffuser layers are somewhat flexible. A slight difference in pressure on the frame of the television can change the uniformity of the picture. On some televisions, this can be fixed (see below).

Flashlighting can sometimes be fixed on some televisions. If the flashlighting is caused by pressure from the TV"s frame, you can adjust it by slightly loosening or tightening the screws behind the edge of the screen. Some TVs don"t expose the screws, however, so this won"t always be possible. You should also keep in mind that a small change in the tightness of a screw can have a big impact on the uniformity of the screen, so be careful if ever you do try this step. While this can fix the issue, we don"t recommend it unless you know exactly what you"re doing, as it may cause more problems than it solves.

For clouding, there"s a pretty simple fix that—while not guaranteed—can have good results. Power on the TV and display a black image. This will allow you to see the lighter spots on the screen. Next, take a soft cloth and massage those brighter spots to improve the uniformity. You should only apply very gentle pressure, just barely touching the screen. You can also try a few different stroking patterns. If you are patient enough, this works surprisingly often, especially on edge-lit TVs, although you should be very careful to avoid damaging your screen.

Black uniformity refers to how evenly a TV can display black across the screen, especially when displaying a bright object over a dark background. It’s important when watching dark scenes in a dark room, and while most people shouldn’t notice black uniformity issues like flashlighting and clouding, they can become more apparent when the issues are especially bad. You won’t need to worry about these problems in rooms with lights on, though. For each TV, we take a photo of a black frame to capture the black uniformity, and then we calculate the color values of the pixels to find the standard deviation of the uniformity. We then do the same with local dimming enabled.

TV has vertical colored lines on the screen. This is a common issue with many TVs. Vertical colored lines usually show on a TV screen when the T-Con board is not working properly. Many times this can simply be caused from wiring that is not securely fastened. Other times the T-Con Board itself may be faulty and need to be replaced.

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-Con board. A loose wire or bad T-Con board is explained below.

When a TV is showing vertical colored lines, a loose wire cable in the TV might be the cause. If you knock on the back of the TV, the vertical colored lines MAY disappear temporarily. This is a sign that a cable is loose or the T-Con board is faulty.

If you experience a TV showing colored vertical lines, try gently tapping in different areas on the back of the TV, you may see the vertical colored lines go away completely or they might decrease in intensity. If so, you may simply have a loose wiring cable. This is not a permanent solution, but may prevent the vertical colored lines from showing temporarily. To fix this permanently, you need to troubleshoot the issue and find out which wiring harness may be loose, faulty or damaged.

NOTE: Be sure you do some troubleshooting before you order any new parts. This article is meant for the most common issues concerning vertical colored lines on a TV screen. If you are having similar issues, you may have to troubleshoot a bit more to find the true issue.

All the methods to troubleshoot why your LED LCD TV has vertical colored lines applies to all brands of TVs – The T-Con board functions the same in all Televisions and all the above info can be used on any and all TVs with a malfunctioning T-Con Board.

Having issues with your TV showing vertical colored lines? We can help! Please describe the issue below and include the model number of your television.

I have a 2010 MacBook Air with a black horizontal line across the screen. as shown in the photo below. I don"t know when it started; I just remember that I opened the lid today and saw it with the stripe.

As far as I know, it"s not a GPU issue because connecting it to an external display does not show the problem. I"ve tried plugging and unplugging the display cable (no results), so I"m not sure if there"s anything else I can do before I consider buying an used screen.