Of course, we hope that you will never find yourself in such a situation. But sometimes you find a lot of comments about faulty TV screens. Let’s look at the most common causes of screen problems.
There is a crack in the TV screen
Such a malfunction is typical for inexpensive TV manufacturers. When there are cracks on the screen. Do not particularly consider the situation where you yourself dropped the TV and the screen broke, it is normal that the TV is not designed to fall and if the screen broke, it would have had to happen. But when you get a new TV, unpack it and see the crack, sometimes even the crack appears on the installed TV after a while. Even more paradoxical case, the crack appears after a light dusting of the screen with a soft cloth.
This is undoubtedly a poor-quality screen, produced using less expensive technology. In this case, with the wrong technology, for the production of the screen materials with very high internal tension were used, and since the screens, in their structure, have a layer of special glass, this glass is not made correctly. And for such a screen, just the slightest impact, and internal tension, there was a cracked glass, it is enough to even apply a small force to the part of the screen, or a temperature difference and it can lead to a crack. Unfortunately, this screen cannot be repaired, it can only be replaced, but you can buy the same screen and end up just spending money.
There are scratches or smudges on your TV screen
If the TV screen is all vertical stripes, it’s a loss of screen synchronization. In 90% of cases, this malfunction is due to poor contact between the main panel of the television and the control panel of the screen. The video and synchronization signals are transmitted by a cable that is connected to the connectors of the electrical panels. If the connectors were not fastened sufficiently when installing the TV, after a while the contact may deteriorate and the picture will be replaced by scratches. It is not difficult to repair the TV, press the connectors on the back of the TV, if the bad contact is on the motherboard, the image can be restored. But if there is poor contact on the screen control panel, it may not work. For a correct repair,
If you have scratches in just one part of the screen, that’s a bigger problem. It is necessary to check for scratches in a place on the screen where they move, for example, when changing the size of the image. If they move, it means that the screen is fine and that the image is broken at the software level. In this case, it is necessary to disconnect the TV from the mains and turn it on again after 1-2 minutes. Rarely, but it helps.
And if the strips are always in the same place, the screen or the screen control board is defective. In this case, of course, you need a specialist who will test the screen control panel. And if the electrical panel is correct, the defect in the screen itself, there is nothing to do, you need to change the screen, it is easier to buy a new TV.
The stain on the TV screen is a loss of quality of the screen itself, it usually occurs on screens that have been manufactured in violation of the technological process or have been stored for a long time in poor conditions, in high humidity. Such a malfunction also occurs on inexpensive TV screens, when the TV operates in conditions of high humidity or sharp temperature drops. The TV screen has a low moisture tolerance, more expensive screens are sealed and last longer, cheaper screens may not be moisture-proof and after 2 or 3 years they may lose the quality picture.
How to fix a broken flat screen LED LCD TV with lines or cracks
If you have a broken LCD LED TV Screen that has any kind of damage such as vertically running lines, spots or patches, cracks or pauses, this page will give you tips to fix it. Many TVs nowadays (plasma, LCD, LED) are large and delicate. If a large flat-screen TV isn’t attached to a wall, it has a greater chance of falling and breaking the screen. If your flat screen LCD TV has been dropped, the screen has most likely taken a hit. See below for some ways to fix this without buying a NEW TV.
If your TV doesn’t have a broken screen and the problem has just appeared on its own, you may be able to appeal to your TV manufacturer’s warranty. If your TV screen has developed specks, vertical lines, small dots, unusually bright pixels, fading, distorted shading, or color problems, you may be able to use the warranty. To make it easier for you to contact your TV manufacturer, links to most TV manufacturers have been included below. Make sure you have your sales receipt and make a note of the model number and serial number on the back of the TV.
TV brand links for warranty claims listed by popularity: Samsung, Vizio, LG, Sony, Acuto, Panasonic, Insegna, Toshiba, JVC, Philips, Magnavox, Sanyo, and Emerson. These links will help you contact the manufacturer to file a warranty claim. If the TV broke or a screen hit caused colored vertical lines, then it is something that happened due to physical damage and is not covered under warranty.
If your flat-screen TV has the dreaded vertical lines, half of the screen has gone darker, the screen is cracked, or the screen is cracked, this can be repaired but may cost more than what you paid for the full TV. If the screen is cracked or cracked, you can try replacing the screen, LCD, plasma or LED part. On some flat-screen TVs, there is a glass panel on top of the screen. You need to determine which one is broken before attempting to order parts.
Related: How to fix vertical lines on a TV screen
Repairing a Broken Flat Screen TV If you are repairing a flat-screen TV, there are a few problems you may run into. The most likely problems on broken TVs will be a broken screen, picture lines or black dots, or picture distortion problems. If the damage to the screen has NOT gone beyond the screen and has NOT gone into the LCD, LED, or Plasma behind the screen, then fixing the flat-screen TV will be possible if you get the parts you need at a low cost. If the TV screen is badly cracked and the damage has penetrated further, then it is deep enough to have damaged the LCD, LED, or plasma. If this is the case for you, then it may cost more to repair your TV than to replace it.
There may be some PLASMA LED LCD TV repair shops near you that can answer some questions for you. Some flat-panel repair shops do not repair broken screens as the cost is not worth it. They will still replace the different internal parts of the TV that may have failed. These faulty parts of the TV could have caused the TV screen not to appear, ghost, or a screen that does not turn on.
If the screen isn’t broken but the screen won’t turn on but your warranty is no longer valid, here are some things you can do. Probably a single part failed in the flat-screen TV. There are a lot of circuit boards and wiring inside your flat-screen TV. Some parts of an LCD or LED TV are power supplies, t-con cards, capacitors, inverters, controller cards, IR sensors, signal inputs, and more.
One of the best places to buy TV Replacement Screens is on eBay. If you need parts like control circuits and wiring, Useful Parts Online has LED, LCD, and Plasma TV Replacement Parts at good prices.
Inexpensive TV replacement parts are available to repair your TV. If you need a mainboard, T-CON, LED driver, or signal input board.
One of the parts may have failed the TV, causing the screen to turn on. Determining which part may be damaged inside your TV can be difficult. It can be done but is not recommended if you are unfamiliar with using a multimeter or have no experience with electronics repair. However, if this is your situation, you can take the TV to a repair shop and they can fix it for you. Have them tell you the part that went wrong, pay them the $ 40 or so it costs for troubleshooting, and go home and buy the part online yourself. This will save you money and your TV should work like new.
If your TV is NOT repairable, most people take the printed circuit boards and separate them. Selling the audio and video components in the broken TV may be the only way to try to recoup the cost of the TV’s value. This is not recommended as some used TV parts are not worth much. If you decide to remove the parts, you can try selling them on eBay.
To see how to take apart and repair a flat-screen TV or monitor, below are some videos that can guide you in the right direction. Be careful when disassembling a TV as energy may still be stored in some parts which can cause electrocution.
LED TV Repair Tutorial – Common Symptoms and Solutions
LED LCD TV FIX, As for the double image, black vertical lines, screen problem
LCD TV fix: bad screen rainbow colors
Repairing Your Television: The Step-by-Step Method
The planned obsolescence of our devices is not inevitable. If your TV stubbornly refuses to turn on and the standby light comes on, then turns off and on again and again, the problem may be a bad capacitor. In this case, all you have to do is replace this small component to repair your television. Here is the procedure, step by step and in pictures.
Symptoms of the problem
One day, when I feel like watching TV (what a crazy idea, you might say), I grab my remote control and press the start button. The standby indicator comes on, then goes out and comes on again and this indefinitely, all accompanied by a slight “click”. After removing the mains power supply from the socket and reinserting it several times, nothing to do.
So I decided to go see on the Internet what it is… And what was my surprise to find dozens of people in my case?
In the forums, I consulted, a rather unusual solution comes up quite often. It’s about taking a hairdryer and heating the underside of the TV under the power outlet. So I tried, and indeed my TV turned on. But this solution solves absolutely nothing and only gives the illusion that the TV is repaired since you have to use a hairdryer every time you want to turn your TV back on…
The causes of the problem
However, the problem actually comes from a component on the card grouping together all the components used to manage the electricity of the TV: a 0.68uF MKP type capacitor.
This faulty condenser does not support the electrical impulse mode when the television is switched on.
Note: in my case, it is an MKP capacitor that is in question but, in other cases with similar symptoms, it is the chemical capacitors that swell.
MKP capacitors have a much lower lifespan and cost, unlike much more resistant MKCs, but perhaps this is an economic will of the manufacturers?
The solution to the problem
So I decided to replace this faulty capacitor. Obviously, we won’t work under voltage: so be sure to disconnect the mains power supply from your television before working on it.
Here is the procedure to follow, in pictures and step by step:
1- Opening the rear cover (here is an LG TV model: 32LG5900):
2- Identification and removal of the component plate:
3- Identification of the faulty MKP Capacitor:
4- Desoldering the Capacitor:
5- Installation and soldering of the new component:
Note: there is no polarity to respect for this type of capacitor (unlike certain chemical capacitors which are polarized).
And There you go! All you have to do is screw the card back on, reconnect the two cables and the power supply, close, and screw back the back cover of your television to be able to enjoy it again.
How to Repair an LCD TV Screen
There are many brands of LCD televisions (liquid crystal display televisions) and all of them are known to have flaws. Some brands are better than others because they are made with more durable components. The lifespan of an LCD screen depends on the quality of the interior lighting components. The life expectancy of TVs used to be around 10 years, but depending on daily use and monitor settings, they can last up to 50 years. There are common problems that occur with LCD TV screens. Some can be solved with simple troubleshooting, while others may require professional help.
Step 1
Check all cable connections to resolve black screen issues, where the LCD screen will display only black during playback. Disable all cables and reconnect them if necessary. Check the screen saver configuration if it is included with the TV. Consult the TV owner’s manual for screen saver troubleshooting, as all screen saver configurations are different. If none of these fixes the problem, the last resort is to call the manufacturer’s customer service department and obtain a repair or replacement component. The lamp, rear projection component, or LCD panel may be damaged.
Video of the day
2nd step
Locate the sleep timer feature in the TV menu under “Setup” if the LCD keeps shutting off. The sleep timer can be activated for a certain number of minutes which turns off the LCD screen. Determine if the power is adequate by checking the circuit breaker. If the TV requires more power than the outlet can supply, it will trip the circuit breaker. Also, check for loose wires. The TV may need to be moved to a more powerful power source or the LCD panel may need to be replaced. If changing the power source has no effect, call the manufacturer.
Step 3
Apply a small amount of petroleum jelly to any scratches on the LCD screen that interfere with the image. This can even out the scratch with the rest of the LCD screen and make the scratch disappear. Scratches can be caused by something hitting or dropping on the screen.
Step 4
You can repair an LCD display showing a “half image” with a soldering iron. The half picture is when only half of the screen displays the actual TV picture and the rest of the screen is black or snowy. A cold solder joint in the inductor or a small component can cause a half image and using a soldering iron on the cold joints can solve the problem. Anyone attempting this solution should be experienced with electrical components, and if not, find an electronic repair technician.
Step 5
Purchase a backlight replacement if the LCD produces poor image quality or loses resolution, and have a professional install it.
Step 6
Replacement of the screen itself may be necessary if the LCD screen shows streaks in the image. This will force the manufacturer to repair the problem. This could have been caused by a fracture in one of the screen substrates, which is the base glass layer of the LCD screen. An object hitting the screen and releasing bubbles from the liquid crystals could also have caused it.
How much does it cost to replace the led tv screen?
If your LED TV screen is cracked and you need to replace some components, you need to evaluate how much damage is. Find out more
If your LED TV screen has any solvable problems, you don’t need to buy a new TV, but you can have it repaired by contacting support.
For example, the TV can be repaired when the screen turns on but remains black, or when the colors are different from the predetermined ones (white and green or black and white).
In other cases, where the LED TV is visibly broken or there are burnt pixels on the screen, all that remains is to replace the LED TV screen with a new one.
What to do if the TV does not turn on?
If there are no obvious problems, such as breaking the glass of the LED TV, the reasons may be simpler than you think and there is no need for repair or replacement.
If the television does not turn on, for example, try to check that the power cord is properly connected to the power outlet. Otherwise, you can resort to stand by mode and use a new socket, following this procedure:
- turn on the TV with the on / off button;
- wait two minutes for the TV to restart;
- if no image appears on the screen, press the “stand by” button on the remote control;
- if the TV does not turn on, however, try to use a different power outlet, making sure that it has a sufficient voltage to use the TV.
How does the replacement of the broken LED TV screen happen
To replace an LED TV screen you need to remove all input and output connection cables. Then we move on to the disassembly of the TV body, removing the plastic cover, so as to access the inside.
At the base of the display, there is the inverter cable that must be removed, an operation to be performed carefully so as not to damage the component, so as to be able to extract the monitor and install the replacement LED TV screen.
It is always necessary to make sure that the TV panel spare parts are original and specific for the TV model purchased, in order to avoid unpleasant surprises. Obviously, only by relying on a professional will you be sure of the appropriate and regular replacement.
Cracked TV screen: how much does the replacement cost?
If your LED TV is new but damaged (for example, there are too bright pixels, distorted shading, or color problems) you can use the warranty and pay nothing. In this case, you must have the purchase receipt, take note of the model number and the serial number of the TV, and finally contact the technical assistant who will explain how to have the TV delivered to the competent office.
If your TV is no longer under warranty, unfortunately, the cost of replacing the LED glass on the TV could be quite high. There are few times when it is convenient to repair it because the asking price can even exceed the actual cost of the TV. From an economic point of view, given the numerous offers on the market, it is often cheaper to buy a new LED or QLED TV than to replace the glass of the LED TV.
However, replacing or repairing the broken TV screen with a new display can cost anywhere from 100 to 300 dollars depending on the TV model and the size of the LED screen to be replaced. This is by far the most expensive repair for a TV; therefore, this decision must be taken carefully, carefully evaluating the real convenience of this intervention.
How much does it cost to repair an LED TV screen?
Damage to the LED TV screen can be anything from a motherboard failure to a power problem to inverter damage or backlight malfunction. Some repairs are cheaper and more accessible, such as replacing the backlight panel, while others may reach the same price as the TV as a complete replacement of the LED TV screen.
For this reason, it is always necessary to evaluate the convenience of extending the original warranty offered by the manufacturer, an investment that in the event of problems and anomalies after the expiry of the initial warranty would undoubtedly prove to be very advantageous. Alternatively, it is possible to take out insurance for the TV, for example, a home insurance policy that also includes the objects present in the home.
To save on the price of repairing the TV screen, you can contact a specialized technician, without resorting to the official assistance of the manufacturer, as it is possible to obtain a more competitive price. However, modern televisions make it increasingly difficult and impractical to repair them, an aspect that is undoubtedly not very respectful of the environment and the needs of consumers.