How to Fix Red Line on LCD Tv Screen

If you have a red line on your LCD TV screen, don’t fret. There are many different ways to fix this problem. This article will help you decide which solution is best for you! You can either buy a new TV or try some of these tips below. guide you with some easy solutions on how to fix red line on LCD tv screen. The first thing you need to do is determine what type of LCD TV you have. If you have an older model, you may be able to find a replacement screen at your local electronics store. If you have a newer model, you will probably need to order a new one online.

How to Fix Red Line on LCD Tv Screen

Reasons Why Red Line on LCD Tv Screen

  • The red line on your LCD screen is generally caused by a damaged, dirty, or scratched LED. If the LED screen has an external light source and it shines directly onto the panel, you might see a green dot in one area of the picture. This particular issue can be fixed with the replacement of parts like this.
  • Corrosion, which may be the result of an electrical short, is also a common cause for this type of red line on the LCD screens. You need to clean the affected area and then use some electrical contact cleaner to get rid of rust or other substances that might have caused the problem in the first place.
  • The power supply is another common cause of this issue. You will need to replace the electrical component with an identical one or find some other way to repair it, like installing new capacitors, for example.
  • If your screen shows a red line on all parts of it, then there might be an electrical short. You need to remove the affected area and replace it with some other metal which will not cause any more problems in the future.
  • If there are dots on your screen, then the problem is that you have dirt or dust particles. You will need to use a cotton swab and gently clean the surface of your LCD TV with it.
Dots On TV Screen
  • If you have a black line on your screen, then there’s nothing to worry about. It is simply an issue with the LCD TV, or it might be that something was spilled over the display and dried up.

Things You’ll Need:

  • Flathead screwdriver
  • Toothpick or needle
  • Electrical contact cleaner
  • Cotton balls

Directions: How to Fix Red Line on LCD Tv Screen

Step One:

Find the screw on your TV that is located in between two metal brackets. Use a flathead screwdriver to remove it, and then use both hands to pull the screen out of its frame. Next, remove any visible tape or adhesive from inside the display while using a cotton ball soaked with rubbing alcohol. Once you’ve removed all dust, use a vacuum cleaner to clean up any loose debris.

Step Two:

Replace the red line on your LCD TV screen by turning it over and unscrewing the back panel located at the bottom of your television set. Once you’ve removed all screws from this panel, take off one wire connector before lifting out each circuit board. Make sure to match the correct colors of each wire when connecting them back together, and then reattach the circuit boards by popping them into place.

red line on LCD TV screen

Step Three:

Replace the screws to mount all circuit boards and tighten them by hand. Replace the wire connector, screw-on back panel with new screws, make sure that it’s tightly in place before turning your television set over again. Plug all cables back in their original locations. Connect the power cord and then the antenna. Turn your TV on.

Step Four:

Plugin the TV and turn it on for 20 minutes while a white screen displays to prevent further damage. Turn off the power source by unplugging the cord from the wall socket or TV after 20 minute period is up cable before turning the TV back over. Test the TV and see if the problem has been resolved. If you are still having trouble with picture quality, change your channel to a lower number channel on your cable box or satellite receiver.

Step Five:

Look for any loose connections by pulling out and re-attaching video cables, then check if any cracks on the screen may have been caused during repairs. Once you’re confident, everything is in order, replace the wires to their original position inside your television set’s circuit board. Now, plug your television into the power outlet and turn it on. Check if the problem is solved. If the problem persists, you may have to take your television to a technician for further repairs.

Step Six:

Plug the TV back in and turn it on to make sure everything is working properly. If you see any more red lines, check your video connection again, then plug the power source out once again for 20 minutes before turning tv back over. Otherwise, find a safe place to set your television, turn the power on, and bask in its glory. I hope this has helped some of you with your red line problem. The process is pretty easy and painless as long as you follow the simple steps. If you have any more questions about how to fix your samsung lcd tv red line problem, please leave a comment below.

Step Seven:

If all goes well, your TV should be restored to factory settings with no red lines present and running as smoothly as ever! Be sure to turn on your television regularly for about an hour each day, and this will help keep the screen in good condition.

Frequently Asked Questions

How to Fix Red Line on LCD Tv Screen by Using a Common Household Product?

The red line is from an increased electric charge generated in the screen due to the heating of some metal pieces inside the TV set. This can be fixed with a simple homemade remedy, which involves just applying contact cleaner or rubbing alcohol onto the affected areas and leaving it there for about 15 minutes before wiping off completely after 30 minutes.

If this does not work, you might have some other underlying problem like a faulty power supply or blown fuse box. You should consult your local repair person specializing in LCD TVs for further advice; they will let you know whether it’s worth fixing the old one or buying a new one altogether.

What Causes Red Line on Tv Screen?

There are a few causes of the red line. Poor cable connection, loose connections inside the TV or faulty power supply, and excessive voltage can all be causing it. If your television is plugged in properly, but you see specks of red pixels on your screen, this could mean that there’s something wrong with your video card or motherboard inside the TV set. In any case, if you have already tried plugging out other devices from nearby outlets and changing cables without success, consult an expert technician for help.


The red line on your LCD TV screen is a common issue with many potential solutions. If you’ve been frustrated with your LCD TV for a while, it may be time to take action. There are many different ways for people use to fix red lines on their screens. We recommend reading through the steps in our blog on how to fix red line on LCD tv screen and then try one or two out until you find what works!

You may read also: How to Fix Horizontal Lines on LCD Monitor

Jennifer Branett
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