Reasons for the appearance of vertical and horizontal stripes on the TV screen, ways to eliminate them

Content:

• 1 Common causes of streaks
• 2 Possible types of stripes and breakdowns 2.1 Thin horizontal stripe
• 2.2 Multi-colored horizontal
• 2.3 Dark, black horizontal and vertical stripes
• 2.4 Small vertical defects
• 2.5 Pink vertical strokes
• 2.6 Vertical white line
• 2.7 Blue vertical lines
• 2.8 Green vertical defects
• 2.9 Red or yellow vertical stripe

Constant use, long periods of continuous viewing, improper maintenance of technicians - all can cause streaks to appear on the TV screen. Even the most modern models are not immune to this malfunction. Moreover, the stripes themselves can have a different character: appear temporarily, be horizontal, vertical, white, black, colored. In each case the reasons are different. After diagnosis, some breakdowns can be repaired yourself. But if the matrix fails or another complex breakdown occurs, it is better to contact the specialists so that you do not have to buy new household appliances.

Problems with the matrix cable

One of the problems with the appearance of stripes on a SAMSUNG TV is a poor connection of the matrix cable. The reason for this may be a broken cable or oxidation of the contacts. To determine the problem, remove the back cover of the TV.

Find the matrix cable and press on it. If defects - horizontal or vertical stripes - disappear from the display, then the cable has broken. You can fix the problem yourself, but this will require skills in working with equipment and boards. The first priority is to find the location of the damaged wires. A magnifying glass or other magnifying glass can help with this.

When you have found the area where the damaged cable contacts are located, you will need a special conductive varnish. It must be applied to areas with defects.

An alternative way to restore contacts is by heating to a certain temperature. Remember that overheating of wires and contacts can aggravate this problem.

If the entire matrix cable is damaged, and not just individual wiring, then in this case the solution to the problem is to replace the component with a new one. To avoid the appearance of new defects, it is better to choose an original part from official manufacturers.

You can replace the cable yourself. At the same time, it is better to entrust this process to professionals: employees of service centers.

To replace the cable, special equipment is required. Using improvised tools may damage the contacts or aggravate the breakdown.

Common Causes of Streaks

The ability to watch TV programs is achieved by broadcasting an encrypted signal, decoding it by hardware and displaying the picture using a matrix. Common reasons why horizontal stripes appear on a TV while watching movies are:

• Dirt gets into the video signal cables. Very small debris, dust, and moisture may get in.
• Incorrect image settings, broken default settings.

You can fix these errors on your own. But the reasons for the appearance of a large number of vertical stripes can be much more serious:

• The matrix has failed;
• The matrix cable is broken and oxidized;
• Malfunctions in software modules.

Advice. You shouldn’t figure out the faults of expensive modern Smart TVs on your own. Maximum – you can check the image settings. It is better to entrust the elimination of other breakdowns to the specialists.

Let's take a closer look at what stripes of color, type and quantity indicate what errors in the operation of televisions.

Possible types of stripes and breakdowns

Horizontal and vertical stripes on the TV screen occur due to software glitches, internal and external breakdowns. It is worth paying attention to the color and the number of defects in order to understand what the error may be.

Thin horizontal stripe

It is worth paying attention to the frame scan, which gets lost after sudden voltage surges, for example, during a thunderstorm or power outage. As a result of the same problems, microcracks may appear on microcircuits.

Multi-colored horizontal

Such stripes can fill either part of the screen or the entire monitor. They have different shades and resemble ripples. Such a malfunction often indicates a failure of the matrix cable. In this case, it needs to be re-soldered, but you should entrust this process to a professional. He will immediately determine whether there are any faults in the matrix or image control unit.

Dark, black horizontal and vertical stripes

They can be located in the center or throughout the monitor. Such stripes on the TV screen often indicate serious and costly breakdowns. These include damage to the decoder, without which it is impossible to reproduce the signal. Most often it requires a complete replacement.

Advice. If black horizontal stripes appear on the TV screen, you should not delay repairs, even if at first they do not interfere with viewing much. The more violations, the more expensive the repairs will be.

Small vertical defects

Depending on the type of TV, such breakdowns indicate failure of the decoder or matrix column. The reasons are 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 gives similar failures. They can appear not only from power surges in the network, but also from mechanical damage to the TV.

Normal wear and tear can also cause pink vertical streaks to appear on your TV screen. A purple defect is also preparing about him.

Important! Don't look for reasons why your new TV is broken. The appearance of stripes on the screen is a manufacturing defect that must be corrected under warranty. To do this, just contact the store where you purchased the equipment or a service center from the manufacturer.

Vertical white line

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

• Gently press your finger onto the white line;
• See if she has disappeared or not;
• If it disappeared and then reappeared, there is a breakdown in the matrix.

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

Blue vertical lines

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

Advice. Even if the cause is identified, you should not disassemble the TV yourself unless you are a master. The elements of the matrix and microcircuits are so small and fragile that it is not difficult to damage them.

Green vertical defects

Such breakdowns indicate damage to the cable connecting the image forming board and the LCD matrix. Such a line can be anything: from a wide line of several centimeters to a narrow line of 1-3 pixels.

Interesting fact. If the strip appears suddenly after the TV has been running for a long time, turn off the equipment and let it cool. Often, along with overheating, the defect also goes away.

Red or yellow vertical stripe

Failure of the matrix daisy chain connection often produces red stripes. They also indicate that the cable connectors are damaged or dusty. It is not uncommon for a track on the board to peel off or the VGA cable to become damaged. Some of these defects can be repaired at home.

Vertical yellow lines are a sign of problems with the video card. And also after moisture gets on the TV, as a result of which the contacts swell and oxidize.

Important! Despite the availability of a large number of instructions on how to independently solder cables or repair microcircuits, you should not do this without special education. The exception is that you already want to buy new equipment, but left this one for personal experiments.

Correcting a bad connection

A line appeared on the LCD screen when you turned it on and does not disappear when the screen is automatically adjusted? Such a defect occurs due to various types of damage:

• shocks during transportation or installation of the device;
• penetration of moisture into the TV or monitor (for example, during wet cleaning or when operating in a climate with high humidity);
• errors in the factory assembly.

If the assembly order is violated, a yellow or green stripe appears in the first days of operation. Late manifestation indicates careless use of the equipment.

Disconnect the contacts and look for any noticeable irregularities: kinks in the wire, greenish deposits, melted elements. If everything is in order, reconnect the cable: perhaps a vertical stripe has appeared on the monitor due to a slight looseness of the connection.

Colored deposits are removed with a small blade, without pressure: the force should not damage the wire. It is almost impossible to remove deep oxidation at home: it is easier to connect a new cable.

Do vertical defective zones appear on TV and then disappear? Check the wires for breaks. The outer shell often remains intact; in this case, the problem is determined with the connected TV. Change the position of the cable and look at the result: if the horizontal stripe on the TV screen either disappears or appears, you have found the source of the problem.

IMPORTANT: It is not necessary to heat-solder the wires; a conductive glue stick or varnish is enough!

Replacing the cable

If the horizontal stripe on the monitor does not disappear after repair, try replacing the contacts. Cable models differ both by manufacturer and by model generation: write down the full name of the device before ordering the part from a repair center or online store.

The horizontal stripe in the center will disappear after connecting a new cable. To replace it yourself, select a screwdriver that matches the size of the bolts holding the screen cover.

IMPORTANT: The case does not open after removing all the bolts? Do not try to open the device by force! In some models, the lid is additionally secured with latches. Check their location in the instruction manual.

The path to the cable is often blocked by other contacts and panels. Open the latches and carefully remove the elements to get to the damaged cable. After installation, connect everything back in the same order and check the image without closing the case. The horizontal stripe should no longer appear on the TV screen.

What problems can be fixed at home?

White or colored stripes do not appear on the TV screen due to a poor signal from the operator. Therefore, you should not call the line and ask about serviceability. But from dirt getting into the connector for connecting the antenna or cable - quite well. These microparticles do not completely block the signal, but only spoil it.

Before cleaning the connector, you can check whether it is the correct one. To do this, plug the flash drive into the TV or connect the screen to the computer via another wire. If the malfunctions go away, you can clean or replace the connector. For this:

• Carefully inspect the connector on the TV. Make sure there are no mechanical creases or damaged contacts. Take a soft brush and wipe off any dust.
• Look at the wire connector. Also visually check for damage and clean with a soft brush.
• Be sure to review the entire cable. Avoid kinks, removed protective braiding, or furniture on the wire.

Important! If you need to replace a connector or wire from a digital television operator, you need to call a specialist. They know exactly which cable was used. And the cost of such repairs is low.

Problems with TV settings

Not fair, but image settings can affect the appearance of stripes. To eliminate this error, you need to take the TV remote control. Go to settings. Set the default parameters. The exact instructions depend on the brand and series of TV. You can read the instructions and find the factory parameters on the official websites of the manufacturer.

Important! Do not confuse ripples and stripes on the screen. When the picture blinks, the image jumps - it's ripples. Constant even stripes with different thicknesses mean possible failures in the settings, failure of the internal components of the TV.

What you can fix yourself

Some of the problems described above are quite capable of being solved even by a non-specialist in the field of TV repair.

Advice! In order to prevent possible malfunctions due to power surges in the network, it is advisable to purchase and connect the TV to an uninterruptible power supply. This will greatly increase the chance of not damaging the functionality of the matrix and all associated components.

If vertical stripes appear, perhaps the reason is the most banal - the hardware settings have gone wrong . In this case, you need to return to the default (factory) image settings, using the functionality of the TV receiver itself.

If necessary, clean the connectors and TV body from dust and dirt. Of course, you need to avoid mechanical impact on the TV, protect it from impacts, falls and temperature changes. It is also extremely important to ensure that moisture does not get inside, as this can become one of the reasons for oxidation of the contacts of the cable or other elements. Therefore, it is recommended to wipe the screen and other elements of the TV with special means.

Oxidation can occur due to manufacturing defects or due to violation of the operating rules of the device. If oxidation does occur, it must be removed. This can be done using a stationery knife or other thin and light blade. In this case, you need to act very carefully, avoiding strong pressure on the contacts.

Breakdowns requiring repair in service centers

If the stripes on the TV screen are not associated with wires and settings, the reason is a breakdown of the internal elements. Only a specialist can carry out an accurate diagnosis. It takes into account the type of matrix, carries out diagnostics, and corrects errors.

There is no need to carry out repairs yourself for a number of reasons:

• Even when disassembling the TV, you can damage various components. Especially in thin models, where all the elements are located very close to each other.
• If you manage to get to the matrix, when dismantling it, it is easy to damage the cable, increasing the cost of repairs.
• The matrix must be soldered under a microscope using a special set of tools. There are no such things in a regular “home workshop”.

Important! Do not under any circumstances attempt to disassemble the TV while it is under warranty. Even if you unscrew two screws before contacting the service center, your case may be considered out of warranty due to attempts at self-repair.

Other display failures

Do not confuse stripes that appeared due to internal violations, failures and mechanical damage. If the monitor is broken as a result of an object hitting it or falling, there will be not only stripes, but also spots, separate light and dark areas.

Dust getting under the protective panel causes dark, white areas to appear. And these are also not stripes, which most often indicate a breakdown of the matrix and the elements connecting to it.

In any situation, it is worth calling a specialist for diagnostics. And if the amount of repairs seems too large, there is always the option of buying new TVs at an affordable price and simply replacing home appliances.

Recommendations for caring for equipment to prevent streaks from appearing on the screen

To prevent a vertical stripe or horizontal colored stripes from appearing on a plasma or LCD TV, you should properly care for the equipment. To extend the service life, follow these tips:

1. Do not wash equipment with water or a wet cloth. Any ingress of moisture causes a short circuit, as well as burnout and oxidation of internal elements. As a result, not only streaks may appear, but the TV may also completely fail.
2. Constant, daily movement of the TV causes internal damage. Microcracks appear and cables may become disconnected. Therefore, it is important that the device is fixed in one place and not subject to constant movement.
3. Do not allow dust to accumulate on the display or the back panel of the TV. Microparticles gradually penetrate inside and stick to the contacts. As a result, the components overheat, the contacts become deformed and stripes appear on the screen. The best option for getting rid of dust is to blow it with a vacuum cleaner, but taking all precautions.

Important! Any cleaning, moving, or fixing of the TV can only be done when it is turned off. And not just turned off by a button, but pulled out of the network. After wiping and treating to remove dust, you should not immediately turn on the equipment. You need to wait 2-5 minutes.

How to independently diagnose TV

First you need to unplug the TV and remove the back panel. This must be done extremely carefully, since cables and other components may be attached to it. Next, you need to conduct a visual inspection of the components.

1. Inspect the main microcircuit for microcracks, pay attention to the places where it is soldered by other TV elements.
2. Inspect the cable and contacts of the power supply, make sure there are no mechanical damage or contamination.
3. Inspect the elements of the microcircuits and cable contacts for oxidation. This is not difficult to detect - oxidized elements have a specific greenish tint due to the formation of plaque.
4. It would be a good idea to check the electrolyte capacitors. Their condition is very easy to determine - damaged elements are deformed and may look slightly swollen.

General recommendations

What to do if stripes appear on your TV? Do not panic, but carry out diagnostics.

1. Carefully examine the strips themselves. Determine their color, quantity, location.
2. Try to let the TV cool down. Disconnect it from the network. Leave for 30-60 minutes. Ventilate the room. Turn it on and check if the problems go away.
3. Inspect the cable through which the signal is supplied to the TV. Clean the connectors with a soft brush and make sure they are inserted correctly.
4. Go to the TV settings. Set the image parameters to factory settings.

And if all else fails, it’s best to call a technician or take the equipment to a service center. So, the repair will be faster and cheaper than trying to solder the matrix yourself or replace the cable.

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