There is a horizontal stripe on the LCD TV

What to do if there is a vertical stripe on the TV screen?

The most likely and common cause of this malfunction is the failure of the cable connecting the imaging board to the LCD screen of your TV.

The width of the strip can vary from the size of a picture unit (pixel) to several centimeters. Also the color of the band can vary: it can be black, red or, say, blue. Associated symptoms of a matrix plume failure can be the appearance of geometric distortions, rippling or flickering on the TV screen.

Stripes on the TV screen: the causes and their solutions

Any dysfunction in technology, undoubtedly, cause concern to the user, and such a phenomenon as stripes on the TV screen, and at all prevents the enjoyment of full-fledged viewing of favorite programs. Why do they appear?? What should you do in this case? The answer to the second question depends on the first, so before you panic, take a closer look at the interference and try to determine the nature of the problem.

First of all check all connectors carefully. Remove the probability of a loose peripheral cable or a clogged video output. Then enter the TV menu and select automatic settings. If streaks reappear on your LCD TV screen, then the problem lurks inside.

You can observe both vertical and horizontal stripes, which have the same nature of occurrence and can be eliminated using the same techniques. It is important to remember that no TV is immune to such malfunctions. Even top-of-the-line LCD TVs from Samsung, Sony, LG, Philips are just household appliances that are subject to both external and internal.

A narrow vertical band for the trimmer indicates an occasional single matrix error, which may have been caused by an unexpected voltage drop. In this case it is worth to wait for some time, the strip may disappear by itself.

One or more vertical stripes of a particular color is an indicator of matrix failure. Procrastination is undesirable, because their number can increase and occupy the entire screen. With minor damage it is possible to repair, with an extensive defect you may need a complete replacement of the matrix.

Horizontal stripes of different colors, streaks, rippling, and screen distortion are the result of a loose or missing connection between the contact line and the matrix. Simply re-solder the pins to repair the problem.

On the Internet you can find a large number of recommendations for self-repair, where the steps to resolder. Top tip: Unless you are a master TV repairman, DO NOT do this on your own. The problem itself is not very critical, but your illiterate actions can aggravate the situation and lead to the replacement of expensive parts.

Thin white horizontal trimmer lines give off a framing defect. It can appear due to constant power surges, short circuits or lightning, after which the contacts melt and cracks appear on the chip. The necessary measures depend on the extent of damage.

Vertical or horizontal streaks of black without a single pixel are the most expensive repairs. It usually means that the decoder is broken, so you have to replace the entire matrix. Otherwise, these lines will get wider and wider until they finally fill the entire screen.

Prevention of streaking on the screen

• It is highly recommended not to wipe the TV with a damp cloth or even splash it with water or other liquids. Moisture can get inside and cause contacts to short out or oxidize. In modern stores they sell special care products for screens and monitors, as well as rags made of appropriate material. Spray the solution on a cloth, and only then wipe the dust off the device. Also read how to properly remove dirt from your LCD TV screen.
• Frequent manipulation and movement can loosen antenna and other cables in their sockets, which causes image interference. In addition, the chance of a fall poses the threat of not only external but also internal damage, the repair of which can cost more than a new device. Make sure that your TV is mounted as stable and stationary as possible. For this purpose it is better to buy a reliable bracket.
• Do not allow the accumulation of dust in the TV. It can cause overheating of the flat cable, which in turn will deform the contacts and damage the matrix. Clean regularly with a vacuum cleaner, it’s even more reliable than wiping.

So, in the case of stripes on the LCD TV screen, the most important thing. do not despair and do not panic. Almost all breakages are repairable. Fortunately, today the official services of major TV manufacturers. Samsung, Phillips, Sony, Panasonic, LG. are almost in all cities in Russia. over, if the warranty on your device has not yet expired, the repair procedure will cost you absolutely free. Read also how to remove scratches from your screen and check your TV for dead pixels.

Possible Banding and Breakage Types

Horizontal and vertical stripes on your TV screen are caused by software glitches and internal and external bugs. It is worth paying attention to the color, the number of defects in order to understand what can be wrong.

Thin horizontal stripe

It is worth paying attention to the framing, which is disrupted after a sudden voltage spike, for example, during thunderstorm or power outage. The same problems can cause microcracks on the microcircuits.

Multicolored horizontal

These stripes can fill part of the screen or the entire monitor. They have different shades and resemble ripples. This often indicates a matrix plume failure. In this case it must be re-soldered, but this process should be entrusted to a professional. He will also immediately determine whether there are any faults in the matrix or the image control unit.

Dark, black horizontal and vertical stripes

Can be in the center or all over the monitor. These stripes on the TV screen often indicate a serious and expensive failure. These include damage to the decoder, without which it is impossible to reproduce the signal. often than not it needs to be completely replaced.

Small vertical defects

Depending on the type of TV, such breakdowns indicate failure of the decoder, matrix post. Causes. power surges. If even one stripe is not eliminated in time, it will spread until it covers the entire screen.

Pink vertical strokes

The monitor matrix is giving similar failures. They can appear not only from surges in the network, but also from mechanical damage to the TV.

Natural wear and tear also affects the appearance of pink vertical stripes on the TV screen. About it also prepares a purple defect.

Important! Don’t look for the cause of a new TV failure. The appearance of stripes on the screen is a factory defect, which should be eliminated under warranty. It is enough to contact the store where you bought the equipment or a service center from the manufacturer.

Vertical white stripes for the trimmer

The streak can be small, barely noticeable or, conversely, thick and pronounced. The reason. failure of the matrix or problems in its operation. Check whether this element of the TV is really damaged is quite simple:

• Gently press the white trimmer fishing line with your finger;
• See if it has disappeared or not;
• If it disappeared and then reappeared, there‘s a breakage in the matrix.

But do not press too hard, otherwise you can damage the technique even more.

Blue vertical lines

After overheating or prolonged operation may appear blue vertical stripes on the TV screen. They indicate problems with the video card, which has its own expiration date. Another reason is the matrix loop detached or the solder ball of the BGA substrate video processor detached.

Advice. Even with the cause identified, do not disassemble the TV yourself if you are not a master. Elements of the matrix, chips are so small and fragile that it is not difficult to damage them.

Green vertical defects

Such failures indicate damage of the plume, connecting the image forming board and the LCD-matrix. Such a line for the trimmer can be anything: from wide in a few centimeters, to narrow in 1-3 pixels.

Interesting fact. If the strip appeared abruptly after prolonged TV work, turn off the equipment and let it cool down. Often along with overheating goes the defect.

Red or yellow vertical stripes

Matrix cable breakage often shows red stripes. They also indicate broken cable connectors or dusty connectors. Often there is a delamination of the track on the board or damage to the VGA cable. Some of these defects can be repaired at home.

Vertical yellow lines are a sign of problems in the video card. And also after moisture gets on the TV, resulting in bloating and oxidation of the contacts.

Important! Despite the presence of a large number of instructions on how to solder plumes or repair microcircuits yourself, you should not do it without special education. The exception. you want to buy new equipment, and this left for personal experiments.

Stripes on the TV: Variety

Horizontal stripes on the TV screen, vertical stripes, blurred or clear, stripes, diagonally crossing the plane of the monitor. each type indicates a particular failure. Most malfunctions occur suddenly and completely unpredictably.

• Vertical stripes on the TV screen indicate a defect in the matrix, which can sometimes disappear on their own.
• Horizontal stripes on the TV from the pixels are the most likely to report a malfunction of the decoder rows / columns on the matrix and require immediate intervention of specialists.
• Wide vertical stripes on the LCD TV can indicate malfunction of the T-Con board or matrix plume.

Possible types of stripes

Vertical and horizontal stripes appear on the TV screen. Sometimes different defects can indicate the same failure. That’s why it’s so important to understand what bars are most common and what they indicate.

TV sets are not immune to premature failure of hardware modules. Even appliances from brands like Samsung, Sony, LG periodically break down.

Thin vertical stripes on the TV set

Appears as a result of matrix malfunction

Several different colored vertical lines

Mechanical damage to the matrix or its components

Colored stripes on the TV screen of different colors

Matrix contact line is disconnected or damaged

Black stripe (horizontal or vertical)

Narrow strip, directed vertically, indicates an error in the operation of the matrix. Sudden power surge could be the reason. Do not rush to call a service center or disassemble the TV. It is possible that the failure will disappear after a few days. Unplug the device and then plug it in again.

One or more color lines appear as a result of matrix failure. Do not procrastinate with the repair. Over time, the number of stripes will only increase, they will become wider. If not the entire matrix is damaged, repair is possible. Large-scale damage can be repaired by replacing the entire matrix.

Blotches, distortions, divorces, colored horizontal stripes on the TV screen. all these defects indicate a faulty operation of the matrix contact stub. The contact has weakened. If it is absent at all, the picture will not be transmitted. Masters fix the problem by re-soldering the contacts or installing a new flat cable.

On various websites you can find a huge number of different instructions for re-soldering damaged contacts. Never try to repair the damage yourself. Lack of experience in the field of repair work and professional equipment will contribute to the aggravation of failure. It is more reasonable to apply for help to professionals.

Thin white horizontal stripe on the TV screen appears due to problems with the frame scan. The cause of the malfunction is short circuits caused by sudden voltage fluctuations. Contacts are melting due to excessive voltage and cracks are appearing on the microchip. The specifics of repair depend on the extent of damage.

Black stripes (horizontal and vertical). the most complex failure, the removal of which will require a substantial monetary investment. This defect is a sign of a faulty decoder. That’s why craftsmen have to replace the matrix completely. If this is not done, the lines will eventually become wider.

What kinds of faults can be repaired at home

White or colored stripes on the TV screen do not appear because of a bad signal from the operator. That’s why you shouldn’t call a trimmer line and ask about malfunctions. But from getting dirt in the antenna connector, cable is quite. These microparticles do not completely block the signal, but only spoil it.

Before cleaning the connector, you can check to see if it’s definitely the connector. You can do this by plugging your USB memory stick into the TV or connecting the screen to your computer with a different cord. If the malfunctions go away, you can clean or replace the connector. To do this:

• Look carefully at the connector in the TV. Make sure there are no mechanical kinks or damage to the contacts. Take a soft brush and wipe off the dust.
• Look at the connector from the wire. Also visually check for damage and clean with a soft brush.
• Be sure to look at the entire cable. Eliminate the presence of kinks, removed protective braid, or placement of furniture on the wire.

Important! If you need to replace the connector or wire from the digital TV operator, you need to call a handyman. They know exactly what kind of cable was used. And the cost of such repair is low.

Failures in the TV settings

Not fair, but the picture settings, can affect the appearance of stripes. To rule out this error, you need to take the remote control from the TV. Go into the settings. Set default settings. Exact instructions depend on the brand and series of TV. You can read the instructions and find the factory parameters on the manufacturer’s official websites.

Important! Do not confuse ripples and bands on the screen. When the picture flashes, the image jumps. it’s a ripple. Constant flat stripes with different thicknesses. possible malfunction in the settings, failure of internal components of the TV.

Matrix failure

If a vertical stripe (or several stripes) appeared on the LG TV screen, there is a high probability that the cause of the defect is a matrix breakdown. The stripes appear because of mechanical damages. the TV fell down from a pedestal or during transportation. moisture got into the TV body or a short circuit occurred.

In some cases, the stripes pass without external influences. In 2-3 weeks after the appearance of the fault, they disappear. If the vertical stripes do not pass more than two months. you need to replace the matrix.

To perform a replacement of this component of your TV is difficult. This type of repair is best left to the master for repairing home appliances or give the TV in an official service center.

Black thin black lines on the screen. vertical and horizontal. indicate a breakdown of the column decoder. It is on the display matrix. Over time, the lines increase in size, so it is better to take care of repairing the part in advance.

Kinescope

Streaks on a kinescope TV (usually horizontal) occur for two reasons:

This type of TV malfunction, stands perhaps in third place after the breakdowns of the line and PSU. Narrow horizontal white stripe on the TV screen indicates a failure of the frame scan.

Such a malfunction as a horizontal stripe on the TV screen can occur for several reasons:

• Faulty framing chip;
• Capacitors of the frame chip bundle are faulty;
• No power to the frame chip;
• Ring cracks in the frame-scanning (HR) elements.

It can manifest itself in different ways. it’s a bright narrow horizontal stripe on the screen or a band width of 3-4 cm. Depends on which element and which cascade is defective.

You should probably start with the simplest thing, to check the chip and its bundling for ring cracks in the soldering. Some of them appear even after a year of operation (for example Erisson), others after many years, here to fix the problem it is enough to solder the pins.

Next let’s check if the supply voltages are present. Depending on the chip used, the voltage can be one or two, for example 9 volts and 45 volts. The low voltage supplies the upstream stage of the microcircuit, and the high voltage supplies the downstream stage.

Current supply for RC is mostly from TDCS, however there are TV sets, in which the voltage is fed from power supply.

Let’s look at the Rolsen 72FS10T-5 TV set on the TDA8356 chip

Supply of the RC is 16 V (pin 3) and 45 V (pin 6) through breakage resistors R405. 1 Ohm and R416. 22 Ohm. If these resistors are broken, just a horizontal stripe will be observed on the TV screen. Open these resistors could indicate a failure of the frame chip or a load in the frame. If the resistors are intact, the chip is most likely alive and it is necessary to change the electrolytes in its bundle.

As I wrote above, the horizontal stripe on the TV screen can appear with defective capacitors in the bundle of frame ICs. Pay attention to blown capacitors in IC power supply and in output cascade (usually they are capacitors of high capacity in 1000-2000 uF). To give you an example let’s look at the CR of the Rolsen C2135:

Here we change the main ones: C406. power, C405. voltage suppressor, C406. The best is to check the parts by replacing them, but in some cases you can “throw in” additional capacitance, i.e. tuck in a capacitor and see the result.

In the microcircuit operability analysis look if the chip is not damaged or warm. You can check it also this way, unplug the chip and check the resistance of the power leads (in this case 3 and 6) on the minus terminal (housing), there should be no short circuit and too little resistance.

Of course, malfunction with a horizontal stripe on the TV screen can also occur with the output of other elements, such as breakage of frame coils, but they are rare enough and I have never come across.

A quality TV set can serve for many years without malfunction and bring the owner a lot of positive emotions. It does not matter what you like to watch: soccer matches, racing or melodramas. On a big TV screen, it all looks more colorful than on a computer monitor. But in any case there comes a time when the matrix of the TV completely fails or certain defects appear.

The most common defects are as follows. There are many variants of stripes on your TV. There are several reasons for such problems, so don’t panic about the irreversible breakdown. In this article we will consider all the causes of stripes on the TV screen.

Types of stripes on the TV and the possible cause of their appearance

Before you jump to any conclusions, make sure that the stripes on your TV are in no way related to the poor connection of your peripheral cables. The cause of picture defects can be a loose picture cable, or a clogged or clogged video connector. Check the picture settings of your TV, select auto settings and see if the stripes are fixed. If not, then deal with the unfortunate stripes.

In any case, the appearance of stripes negatively affects the quality of the image displayed, and sometimes makes it simply impossible to view. However, the defect is not the same thing, and there are several types of streaks. Vertical stripes on the TV can be narrow (1-2 pixels wide) or broad (covering from five to one hundred percent of the screen). The narrow vertical strip of pixels burning in a certain color with a 100% probability appears as a result of problems with the matrix. This defect can fix itself, if within a few days it has not happened need to bring the TV in the service center.

If on your TV screen there is a thin vertical (horizontal) strip of pixels that do not light up at all, it most likely indicates a breakage of the column (row) decoder on the matrix. Such a failure often occurs with a power surge or lightning strike and requires immediate treatment. As the band will only get wider with time and soon it will be impossible to watch TV. The problem is that if the decoder breaks, you are likely to buy a new matrix, but it is quite expensive. The decoder is most often located either directly on the matrix or on the cable in front of the matrix. In the latter case, some heat the place where the plume is glued to the matrix. This does not always help, and if the problem is solved, then not for long.

A large number of vertical stripes covering the surface of the screen may appear as a result of matrix failure or T-Con board malfunction. Only an employee of the service center can tell for sure. Horizontal stripes on the TV appear for the same reasons as vertical stripes and are eliminated by similar methods. It should be understood that not all cases in the presence of stripes on the TV screen will need an expensive replacement of the matrix. In most cases, with timely detection of the defect, you can get by with an inexpensive surgical intervention of the master. Replacing the board T-CON, loose fit matrix plume. this is the list of services that you can get in the service center of your city.