Horizontal bar on TV screen
Horizontal bar on TV screen
This type of TV malfunction is perhaps in third place after the line and power supply breakdowns. A narrow horizontal white stripe on the TV screen indicates a malfunction of the vertical scan.
A malfunction such as a horizontal stripe on the TV screen can occur for several reasons:
- Faulty personnel microcircuit;
- The capacitors of the strapping of the personnel microcircuit are faulty;
- There is no power supply for the personnel microcircuit;
- Annular cracks in the frame scan elements (CR).
It can manifest itself in different ways. it is a bright narrow horizontal strip on the screen or a strip 3-4 cm wide.It depends on which element and which cascade is faulty.
Perhaps you need to start with the SIMplest thing, check the microcircuit and its strapping for ring cracks in the soldering. For some, they appear even after a year of operation (for example, with Erisson), for others after many years, here it is enough to solder the leads to eliminate the malfunction.
Next, we check for the presence of supply voltages. Depending on the microcircuit used, the voltage can be one or two, for example 9 volts and 45 volts. The low voltage feeds the preliminary stage of the microcircuit, and the high voltage feeds the output stage.
The power supply of the KR is mainly carried out from the TDKS, however, there are TVs in which voltages are supplied from the power supply.
Let’s consider the CD of the Rolsen 72FS10T-5 TV on the TDA8356 chip
The power supply of the KR is carried out with a voltage of 16 V (pin 3) and 45 V (pin 6) through break resistors R405. 1 Ohm and R416 22 Ohm. When these resistors break, a horizontal strip will be observed on the TV screen. A break in these resistors may indicate a malfunction of the personnel microcircuit or some kind of load in the KR. If the resistors are intact, then the microcircuit is most likely alive and it is necessary to change the electrolytes in its strapping.
As I wrote above, a horizontal stripe on the TV screen may appear with faulty capacitors in the strapping of the personnel microcircuit. Here, the very first thing you should pay attention to is whether there are swollen capacitors in the power supply of the microcircuit and in the output stage (usually these are large capacitors 1000-2000 uF). For example, let’s look at the Rolsen C2135 TV set:
Here we change the main ones: C406. for power supply, C405. voltage boost, C406. The best thing is to check the parts by replacing, but in some cases you can “throw in” an additional capacitance, that is, solder the capacitor and see the result.
When analyzing the performance of the microcircuit, see if there is any damage on the case, and if it is getting hot. You can also check it in this way, evaporate the microcircuit and check the resistance of the power leads (in this case, 3 and 6) to the negative terminal (case), there should not be a short circuit and too little resistance.
Of course, a malfunction with a horizontal stripe on the TV screen can also occur with the release of other elements, for example, the breakage of frame coils, but they are quite rare and I have never come across.
First you need to check the integrity of the soldering of the microcircuit and the strapping. There should be no cracks in it. After all, they can be the main source of the problem. If at least one crack is found, the part leads should be re-soldered.
The second step is to look at the stress distribution. Depending on the design, the voltage on the microcircuit can be 9V or 45V. Low voltage is required to power the preliminary stage of the part, and high is fed to the output channel.
The power of the frame scan is usually carried out from the TDKS. However, for some TV models, the voltage is provided by the power supply. To summarize, power is supplied through breakout resistors and applied to the appropriate inputs. It is the break in these resistors that leads to the broadcast of the white stripe. In addition, such a problem may indicate:
- about problems with the personnel microcircuit;
- about the presence of any load in the frame scan (HR).
Does the screen show you a horizontal bar? To fix the trouble, it is necessary to inspect the piping, output channel, power supply of the circuit itself, and find swollen capacitors. As a rule, they have a large capacity. somewhere between 1-2 thousand microfarads. They must be replaced with new ones, although it is permissible and SIMple to solder.
Horizontal stripes on the TV screen
If you see horizontal stripes on the TV screen, then it is faulty, and it’s time to think about inviting a specialist with experience and appropriate skills in the repair of equipment. If there is a desire to deal with the problem on your own, you should remember about the technique for the safe performance of work related to electricity.
Broken frame coils
A white streak can appear when the frame coils have broken. This kind of breakdown is rare. Only the replacement of the part will help to cope with the problem.
Why do horizontal stripes appear
Horizontal stripes on a TV monitor are due to specific problems. For example, the reason for the narrow white stripe was found in the frame scan. Also, malfunctions can be initiated:
- malfunctions in the capacitors of the strapping of the personnel microcircuit;
- lack of power supply in the personnel microcircuit;
- the formation of cracks in the elements of the frame scan.
If streaks appear on the screen, the source of such trouble may be:
- Incorrect work of the matrix. In this case, you can observe multi-colored verticals,
- Loss of connection between the loop and the matrix. Various horizontal stripes serve as informants.
- Matrix committing errors. Characterized by a narrow vertical stripe.
- Decoder failure. Black stripes appear.
- The problem with personnel scanning. Expressed horizontally in white.
If you observe at least one of the situations described above, you should contact the workshop.
The reason for the appearance on the screen of a narrow white vertical stripe is a single matrix error. If it is caused by a change in voltage, then after a certain period of time, the demonstration is restored, and the TV continues to work normally.
The appearance of one or several monochrome verticals is a consequence of a malfunction of the matrix. The severity of the breakdown will determine whether you need to do a local repair or you have to replace the entire part. Horizontal lines of different colors mean that the loop has been partially or completely disconnected from the matrix. Soldering contacts will help here.
The appearance of a white stripe on the screen may indicate the presence of problems in the decoder of rows (columns) on the matrix. This kind of trouble is most often caused by a voltage drop or a lightning strike and needs to be corrected as quickly as possible. If repair work is postponed, there is a risk of strip enlargement.
The solution to the problem of a decoder malfunction is the purchase of a new matrix. It should be borne in mind that it is expensive. The element is located on the matrix or on the ribbon that is in front of it. Sometimes warming up the contact point of these two parts can help.
But not in every case you should rush to replace the matrix. Sometimes it can help to cope with a nuisance:
- replacement of the T-KON board;
- correction of the position of the matrix loop.
In other words, the problem can be solved with a minor surgical intervention.
How to fix the problem with stripes on the TV screen
Stripes on the screen are a symptom of a malfunctioning TV or problems with the incoming signal. According to them, an experienced telemaster can identify and eliminate the breakdown. The stripes on the screen prevent the user from comfortably watching movies and TV shows.
The most common causes of streaking are:
- Problems with the signal source from the repeater or antenna. In the second case, powerful devices next to your antenna, its incorrect installation or configuration are to blame.
- Problems with cables. This is especially true for cable television. A weak analogue antenna signal will rather “make noise” than give bands.
- Breakdown of the TV. This can be a loose plume, a burnt out or mechanically damaged matrix, etc.
You can try to fix the first two problems yourself, and it is better to entrust the repair of the device to professionals.
Possible causes of image integrity violation
First of all, carefully check all connectors. Avoid the possibility of a loose peripheral cable or clogged output. After that, enter the TV menu and select automatic settings. If stripes appear on the screen of your LCD TV, then the problem lies inside.
You can observe both vertical and horizontal stripes, which have the same nature of occurrence and are eliminated using the same techniques. It is important to remember that no TV is immune from such problems. Even the top LCD TVs from Samsung, Sony, LG, Philips are just household appliances that are subject to both external and internal influences.
|External manifestations||Probable malfunction|
|Thin vertical line||Matrix error|
|One or more colored vertical lines||Matrix defect|
|Multicolored horizontal stripes, stains||Disconnecting the contact loop from the matrix|
|White horizontal line||Frame alignment defect|
|Black vertical or horizontal stripes||Decoder failure|
A narrow vertical line indicates an occasional single die error that could have been caused by an unexpected voltage drop. In this case, it is worth waiting for a while, the strip may disappear by itself.
One or more vertical stripes of a certain color is an indicator of matrix breakage. It is undesirable to delay time, because their number can increase and occupy the entire screen. In case of minor damage, repair is possible, in case of an extensive defect, a complete replacement of the matrix may be required.
Horizontal stripes of different colors, streaks, ripples and screen distortion are the result of the connection of the contact cable to the matrix being weakened or missing. To eliminate the malfunction, just re-solder the contacts.
A thin white horizontal line indicates a frame defect. It can appear due to constant voltage surges, short circuits or a lightning discharge, after which the contacts melt, and cracks appear on the microcircuit. The necessary measures depend on the degree of damage.
Vertical or horizontal black stripes without a single pixel require the most expensive repairs. Usually they mean a breakdown of the decoder, so you have to change the entire matrix completely. Otherwise, these lines will get wider and wider until they finally fill the entire screen.
Preventing the appearance of stripes on the screen
Do not worry if streaking occurs on the LCD TV screen. Almost all breakdowns are subject to repair. Fortunately, today the official services of large TV manufacturers. Samsung, Phillips, Sony, PanSonyk, LG. are available in almost all cities of Russia. over, if your device is still under warranty, the repair procedure will cost you completely free. Read also how to independently remove scratches from the screen and check TV for dead pixels.
If the matrix and its components are damaged
Lines that appear unexpectedly also indicate this problem. Such a nuisance, as a rule, appears due to a short circuit or mechanical damage. It so happens that after a couple of days the stripes pass by themselves, but if 5-7 days have passed, and the defects remain, then this indicates a serious problem with the technique. It is very difficult to replace the matrix on your own, therefore such repair work should be carried out exclusively in service workshops. However, the cost of such services usually reaches 70-80% of the price of a new TV. That is why, to begin with, be sure to find out how much the restoration will cost you, and only after that make a decision whether to agree to repair or refuse it. It is possible that service maintenance will be SIMply unprofitable for you.
If you notice thin lines of dark color on the screen of a television device, it means that the matrix decoder is out of order. Their width will only increase over time, so there is no need to delay the repair. it is better to immediately contact the craftsmen, and to do this the sooner the better.
In some cases, all conductors are compact and lightweight, so it is likely that during work you will damage one of the existing conductors by careless handling. For work, you will need not only professional skills, but also the appropriate tools: magnifying magnifiers, IR soldering station and some others.
Stripes and other defects on the screen surface can be the result of both minor and serious breakdowns, so users often face the question of whether it is worth doing repairs on their own. Yes, when it comes to stripping, for example, a cable from the current. But you do not need to replace any important system modules at home. the risk that you will permanently disable the equipment is very high.
Possible reasons for the appearance
Horizontal and vertical stripes may appear on the TV receiver screen, sometimes various defects may indicate one breakdown. therefore, it is very important to understand as much as possible which bands may occur and which breakdown indicate.
There is no such technique that would be insured against failure of any system modules. Even TVs from world famous manufacturers like LG, Samsung and Sony break down from time to time. The probable cause of a breakdown can be determined by the nature of the stripes.
A vertically positioned black bar often indicates a malfunction of the matrix. The reason for such an unpleasant phenomenon is most often a sudden power surge. However, there is no need to rush to the service center, and even more so to disassemble the TV yourself. It is likely that after a couple of days the malfunction will disappear by itself. you need to disconnect the device from the power supply, and after a while reconnect it.
The appearance of one or several dark or light lines appear. the reason for the failure of the matrix. In this case, it is not worth tightening with the repair, since after a short period of time the number of strips will only increase, and their width will increase. If the matrix is not completely broken, then a large-scale repair will still be required. the damage is usually eliminated by a complete replacement of the block.
If distortions appear on the image transmitting device and horizontal colored LED strips appear, then this indicates the incorrect operation of the matrix contact loop.
A thin, snow-white horizontal stripe that runs at the top of the screen, in the middle or bottom, usually occurs due to problems with vertical scanning. The cause of such a malfunction is usually a short circuit associated with sudden voltage fluctuations. Due to too high a voltage, the contacts begin to melt, and the microcircuit becomes cracked.
The most difficult malfunction is represented by black stripes, regardless of whether they are located horizontally or vertically. Eliminating such a strip requires significant financial investments. Most often, such a defect indicates a malfunction of the decoder, therefore the masters are forced to change the entire matrix. If this is not done, then gradually the number of black bars will grow, and in addition, they will become wider, making it impossible to comfortably watch TV programs and movies.
Stripes from top to bottom in combination with spots of various sizes often appear due to moisture getting inside the TV. in this case, the plasma matrix is destroyed.
Colored lines of a SIMilar direction appear due to corrosion processes that began in the matrix.
For problems with contact
As we mentioned earlier, vertical stripes on TV screens often appear due to poor contact quality. Basically, this happens if the TV is initially assembled incorrectly. In addition, it is possible that the owner of the equipment did not follow the rules for operating the equipment. even an incorrect cleaning of the panel often leads to defects.
It is very easy to clarify whether it was contact problems that were the catalyst for the appearance of lines. A SIMple visual inspection is usually sufficient. Any irregularities in the connection points are visible to the naked eye: oxidized contacts look green.
If the wires are oxidized, then you can clean them with a knife, blade, or any other pointed improvised tool.
How to remove stripes?
The presence of any stripes on the screen interferes with the comfortable viewing of films and programs. Corrective actions directly depend on the origin of the problem. So, if the stripes appeared after the TV was dropped, or as a result of an impact, then in this case, damage to the LCD crystals and their joints, as well as the transparent inner glass, usually occurs. In this case, replacing the internal elements of the matrix will not work. the panel must be completely replaced.
There are other reasons too.
Stripes on the TV screen: causes and elimination of breakdowns
The appearance of stripes on the TV screen is one of the most common defects, while stripes can have very different directions (horizontal and vertical), as well as differ in color (most often black-and-white, blue, red, gray, almost transparent or multi-colored). In any case, their appearance directly indicates a hardware malfunction of the TV receiver, this may be the result of mechanical shock, short circuit or system failure.
In our review, we will dwell in more detail on clarifying the causes of such breakdowns and give recommendations on what to do to the owner of the equipment if he is faced with such an unpleasant situation.
In fairness, we note that the appearance of stripes does not always indicate a serious malfunction and does not mean that the TV should be carried to a professional craftsman as soon as possible. Sometimes they arise due to the user’s negligence, this may be due to dust getting into the device or incorrectly set image settings. Both problems can be solved independently.
To do this, go through the menu to the TV settings. Then select the “Support” option. In it, click on the “Self-diagnosis” block. Then it remains only to start testing the image.
If the reason why stripes appeared on the TV screen is of software origin, then the system should be flashed, for this a series of sequential manipulations are performed:
- connect the TV receiver via cable or Wi-Fi to the Internet;
- in the opened settings find the “Support” block;
- select “Software Update”.
After that, the system will automatically start checking for correct updates. It is imperative to wait until it finishes downloading, as a rule, the time directly depends on the speed of the Internet connection.
Replacing the loop
Another common reason for the appearance of stripes on the TV display is the breakdown of the matrix loop. Such a defect is very easy to determine; for this you need to slightly move the train or slightly press on it. If at the moment of contact the defects disappear, therefore, the cause of the malfunction is diagnosed correctly.
In order to correct the situation, you should take a magnifying glass, and then use it to find the area of damage to the loop wiring. Keep in mind that it will not be easy to do this. such a repair is a very painstaking and almost jewelry work. The restoration of the coating takes place by heating the contacts to a certain temperature or using a conductive varnish. It is best to entrust this work to professionals, because even the slightest overheating often leads to an aggravation of the problem.
The matrix cable (from the point of view of the TV design) is a hardware connection block. In order to remove it, you need to untwist the television panel and remove some of the parts. Almost all manufacturers install standard fasteners, for this reason, the bolts must be unscrewed strictly against the natural direction of movement of the clockwise. In some models, the connecting cable and associated wiring are fixed directly to the cover, in this situation, during the parsing of the TV, remove the parts very smoothly. so that nothing in them is damaged.
As you know, any problem is easier to prevent than to fix it. In the case of the appearance of stripes on the TV, this rule works 100%, therefore, in the conclusion of our review, we will give several recommendations that will prevent the appearance of such unpleasant defects on the display of your TV.
If moisture gets into the TV, then first of all it is necessary to disconnect it from the network to prevent a short circuit. All damaged elements must be allowed to dry thoroughly, usually it takes about three to four days, depending on the amount of liquid that has entered.
Do not move the TV often. this causes various damage to the cable or connectors, which, of course, will affect the quality of the image displayed on the screen. In addition, it is necessary that the unit is firmly fixed.
No dust or dirt should accumulate on the TV receiver. This causes overheating of the loop and, as a result, deformation of the contacts. In order to get rid of such deposits, it is advisable to use a special technical vacuum cleaner.
See the following for how to deal with streaks on your TV screen.
Stripes on TV: reasons for the appearance
The main factors that cause this malfunction:
- Breakage of the matrix.
- Temporary loss of loop contact.
- Lack of debugging of decoders.
- Problems / breakdowns of horizontal or vertical scanning.
Strip on TV: varieties
Horizontal stripes on the TV screen, vertical stripes, vague or clear, stripes diagonally crossing the plane of the monitor. each type indicates a certain breakdown. Most often, malfunctions occur suddenly and completely unpredictable.
- Vertical stripes on the TV screen indicate a defect in the matrix, which can sometimes disappear by themselves.
- Horizontal stripes on a TV from pixels are most likely to indicate a malfunction of the row / column decoder on the matrix and require immediate intervention by specialists.
- Wide vertical stripes on an LCD TV may indicate a malfunction of the T-Kon board or a loose matrix cable.
Stripes on the TV screen
One of the most common hobbies of people of any age is watching TV, which is present in every home and most often not in a single copy. Most have changed outdated CRT models and purchased new LSD or LCD counterparts. However, the new equipment, just like the old one, is not insured against breakdowns, and the repair of TVs may be necessary, regardless of the year of manufacture of the equipment. Some of the most popular brands that produce quality hardware are Samsung and LG. The popularity is due to the excellent value for money, the typical breakdowns encountered, which greatly SIMplifies the diagnosis and subsequent repair of Samsung or LG TVs.
Naturally, TV sets are characterized by a huge number of model ranges, however, for craftsmen who have been involved in the repair industry for several years, malfunctions are predictable and uncomplicated, and the availability of manufacturer’s technical support with the necessary modules, spare parts, software and documentation SIMplifies diagnosis and repair.
Quite often, our service center is contacted by customers with a breakdown of TVs, which is accompanied by image distortion, the appearance of a strip on the TV screen. Some of the breakdowns can be eliminated on their own, without replacing the matrix, and some require a complex repair process. Consider why these breakdowns occur.
Stripes appeared on the TV screen: how to make repairs?
The appearance of stripes on a plasma screen, the formation of a dark, black, white or horizontal stripe on an LCD TV screen is professionally solved by recreating LCD matrix loops, which involve the use of specialized modules. Naturally, making reliable repairs at home is almost impossible. The procedure for removing streaks on a Samsung or LG TV requires precise, accurate positioning of the ribbon cable, the availability of tools, the use of anisotropic adhesive tape, etc.
If horizontal stripes appear on the TV screen, then it is extremely difficult to cope without a specialist, because modern electronic devices are extremely difficult to equip. Naturally, you can always try to fix the breakdown on your own, or you can entrust the repair to specialists of the appropriate qualification experience and level, because Romsat-Service guarantees high-quality and fast service.
If you could not find a solution to your problem. then contact our Service Center for help
What problems lead to the appearance of stripes on the screen
Depending on which stripes are visible during TV broadcast, you can judge the causes of the malfunction. Stripes can be horizontal or vertical, different colors, different thicknesses, ripples, fps degradation and other problems. Some of these problems can be solved on your own, but sometimes only contacting the service department can help.
The main causes of malfunctioning TV screens are the following factors.
- Voltage surges that can lead to disruption of the functionality of the matrix and all components directly associated with it.
- Damage or oxidation of the matrix loop contacts.
- Malfunction or failure of capacitors.
- Loose cable connection.
- Dirty contacts of the power supply unit, ingress of a large amount of dust or foreign objects inside the TV case.
- TV settings failed.
About a third of all faults associated with picture defects on a plasma or LCD TV are accompanied by the appearance of horizontal stripes. For example, a white stripe on the screen may indicate a malfunction or partial failure of the microcircuit responsible for the operation of the frame scan. This problem is quite serious, requires diagnostics at a service center and, possibly, will result in the need to replace a part.
A wide blue bar (it can be purple or purple) may indicate a failure of the controller on the matrix. This problem also cannot be solved on its own, the best option is to contact a service center.
A narrow dark stripe (or many such stripes) indicate, most likely, problems with the matrix decoder. In this case, the intervention of a specialist is also indispensable.
A thin vertical stripe on the TV screen, again, speaks volumes about a failure in the matrix. If the reason for this is a power surge, then the malfunction may disappear on its own after two to three days. It is enough to turn off the TV and turn it on again.
A lot of colored stripes, accompanied by ripples, image distortion, indicates damage to the matrix contact loop. Alternatively, it may not be firmly fixed.
What can you fix yourself
Some of the problems described above can be easily solved even by a non-specialist in the field of TV repair.
If vertical stripes appear, perhaps the reason is the most commonplace. hardware settings have gone astray. 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 housing from dust and dirt. Of course, you need to avoid mechanical stress on the TV, protect it from shock, drop and temperature extremes. It is also extremely important to ensure that moisture does not get inside, as this can become one of the reasons for the oxidation of the contacts of the loop or other elements. Therefore, it is recommended to wipe the screen and other elements of the TV with special means.
Oxidation can occur as a result of a factory defect, and due to violation of the rules for operating the device. If oxidation does occur, it must be removed. This can be done with a clerical knife or other thin and light blade. In this case, you need to act very carefully, avoiding strong pressure on the contacts.
Reasons for the appearance of different types of stripes on the TV screen
Any owner of an LCD TV can face the problem of violation or incorrect transmission of the image on his device. Very often this manifests itself in the appearance of horizontal or vertical color stripes on the screen, which greatly complicates the viewing of programs and can lead to a complete failure of the television receiver. What to do if color stripes appear on the TV screen. consider in the article.
How to self-diagnose TV
First you need to unplug the TV and remove the back panel. This must be done extremely carefully, since loops and other components can be attached to it. Next, you need to conduct a visual inspection of the components.
- Inspect the main microcircuit for microcracks, pay attention to the places of its soldering with the rest of the TV elements.
- Inspect the loop, power supply contacts, make sure that there are no mechanical damage and contamination.
- Examine the elements of microcircuits and contacts of the loop for oxidation. It is not difficult to detect this. oxidized elements have a specific greenish tint due to the formation of plaque.
- It will not be superfluous to check electrolyte capacitors. Their condition is very easy to determine. damaged elements are deformed and may look slightly swollen.
What is being repaired in the workshop
In case of mechanical damage to the loop, it is more expedient to replace it. It is better to use original components that are suitable for a particular model. Its full name can usually be found on the rear panel. For example, for an LG TV, these are LVDS EAD cables with a specific numbering depending on the model. Unsoldering, most likely, will not be required, because the cable is connected to the matrix using special latches. Their connection works in the same way as for a LAN cable.
If replacing the cable may still be advisable, then in the case when you need to change the matrix, it is better to refuse repair, since its cost is only slightly lower than the cost of a new TV. A full assessment of the replacement can only be done in a specialized service center.
It must be remembered that even ultra-modern and expensive TV models cannot be insured against damage to hardware modules. This is mainly due to careless handling or power surges in the network, but it happens that the culprit is the manufacturer, where negligence was made during assembly or low-quality components were used. Possible reasons for the appearance of colored or black stripes on the screen, as well as any other malfunctions, can be established in specialized service centers.
Therefore, if self-repair attempts do not lead to the elimination of the malfunction, the service center will be able to repair the LCD TV only for a fee, which, depending on the breakdown, can be quite high. In some cases, it will be more appropriate to purchase a new TV model.
Service employees often talk about the fact that most of the breakdowns are solved by checking or replacing the connection wires. It was said above that you need to check how the card is connected. However, it does not hurt to consider the cables that connect other components. What is the verification? We eliminate dust, check the reliability and correct connections, inspect the wires for black dots, bends and fractures. For many years of using technology, many users do not look inside their system unit and do not suspect what anarchy reigns there. A lot of wires entangled with each other, covered with dust, and sometimes cobwebs. All of this will naturally affect the work. To make it easier for myself in the future, I recommend that you inspect the system unit after purchase, switch the wires and try to lay them as evenly as possible. In the future, this will help to avoid breakdowns.
While switching wires and checking the connection, it will not be superfluous to inspect the motherboard. There are many elements on it and an unprepared user will hardly find a problem himself. But it is quite possible to notice minor defects. We are talking about burnt out resistors. These are small protruding parts. Most often they are in the shape of a cylinder, they can be of a variety of colors. black, green, red. A burnt out transistor will be black and with traces of carbon deposits. The second sign of its failure is swelling. You should not change them yourself, but this is a wake-up call to take the PC to the service center.
The second node, which is responsible for displaying the image on the screen, is the map. It processes the incoming data and forms a picture. Like any device, it can burn out or deteriorate. In addition, it is susceptible to heat, clogging and other unpleasant phenomena. Diagnostics of the card consists in cleaning it from dust, checking the cooler’s operation, and lubricating it if necessary. It is also important to check the integrity of the connection wires. Often the reason lies in them. A system unit accidentally hit with a foot, wires coming out of the connector. that’s the image distortion.
If this does not help, all the wires are intact, the card does not heat up and is not dirty, then we repeat the previous point. He removes the card and again go to visit a friend. the card works. So we are looking for the problem further.
Why might the monitor deteriorate? often this is a physical effect. a shock, increased moisture, sunlight hitting the matrix. Sometimes a power surge or network noise can damage your device. I recommend all users to connect the monitor to the mains through a surge protector. This is a good defense. There is a nuance here. Sometimes an extension cord is used instead of a surge protector. When connecting different devices to it, noise may occur, which causes image distortion. In this case, we check the monitor by connecting it to the network separately. If this does not help, then we refer it to a friend. This is the easiest way to eliminate damage to your monitor and start checking the rest of your computer.
Checking the monitor matrix
Above I mentioned that the appearance of stripes is often the result of a hardware failure. But sometimes the nuances lie in the setting. First you should try to reset the monitor settings to factory settings. This is very easy to do. On the body of the device there are buttons that allow you to change the gamma, brightness, contrast. There is always a factory reset button among them. With its help, the monitor returns to factory settings.
To understand the correct operation of the monitor itself, it will not be superfluous to check the integrity of the matrix and the presence of hidden factory defects. This is a trick that sellers often use to sell services to customers. It all sounds tricky and complicated, but in fact it is done easily.
There are several ways:
- using a special program;
- Microsoft tools.
Option 1. download special software to a USB flash drive and run it on a PC. There are a lot of programs, they take up little space, and they are quite easy to use.
Popular utilities include:
- nokia monitor test;
- eizo monitortest;
- passmark monitortest.
These tools will allow you not only to identify the broken pixel, but also to check the matrix for color transitions, contrast. In general, the test is to drive the device to fill with one color. The broken pixel will be highlighted in a different color. Special gradation images help you determine if colors are displayed correctly.
Option 2. go to youtube and enter the query “matrix test” into the search. The principle is the same, only you don’t need to download anything. Just run it. expand to full screen, remove all unnecessary elements and carefully look.
Option 3. in the OS settings there are special items that allow you to customize your desktop. Among other things, you can choose a background here. The verification process is reduced to removing all elements from the desktop, the taskbar and sequentially filling it with one color. In other words, this is a variation of the first option, you just have to dig a little in the settings. I do not recommend using this method, because it is the longest. Suitable if there is no Internet and special utilities.
For those who all decide to turn to this method, the sequence of actions is below:
- Personalization. Options.
- Background. Solid Color. Complementary Color.
- You need to choose alternately white, gray, black, green, red, blue colors. It is on them that the pixels are noticeable.
- Go back to the Personalization menu and go to the Taskbar.
- Select “Automatically hide the panel on the desktop”. Now she will hide off the screen on her own. To put it back in place, just move the cursor down.
- The last point. Right click on the table and go to the “View” item. At the bottom we mark “display desktop icons”.
- After completing these steps, nothing will remain on the desktop except the selected color. The action must be repeated for each of the above colors.
We remove horizontal stripes on the monitor screen, which appeared suddenly. How? I tell
Good day, dear readers and subscribers of my blog! I, Rostislav, recommend the article for a full reading in order to solve my problems in this topic. A computer is a complex device where all the elements are subtly interconnected. Poor performance of one of the units can lead to equipment defects. In order for the equipment to serve for a long time, it is necessary not only to take care of it, but also to carry out diagnostics. This will allow timely identification of the malfunction. Not every user can do this on his own. Today I will tell you what to do if horizontal stripes appear on the monitor screen, how to remove it will be described below. It is not uncommon for a problem to be caused by a technical breakdown, but this is encouraged by the fact that there is usually nothing critical in this, which means that it is quite possible to cope on your own.
Why stripes appear
The monitor is a means for displaying images on a display. It is closely related to various computer components. Sometimes multi-colored stripes are the result of a driver malfunction or a failure due to a virus. But software problems are rarely the root cause. often the reason is the incorrect connection of the PC nodes or the negative impact of one of them on the other.
Before starting diagnostics, it is worth checking what kind of defects on the screen. If the picture is SIMply warped or colors are inverted, then the likely cause is the driver. Updating it is a SIMple task. It is best to download the latest version from the manufacturer’s website. In the case when the screen is divided into stripes or disintegrates into pixels, then the reason is clearly in the hardware, and not in the software. Not all users know what to do in this case. Many people blame the card, but that may not be the question. Loose wires, overheating, dust are all possible sources of streaking. Therefore, first of all, I recommend to disconnect the computer from the network and start sequential diagnostics of each element.
If the stripes are faintly visible on the screen, and they rather resemble incorrect display of colors, then you can try to fix it by adjusting. There are a number of special programs that allow you to achieve the most accurate color display.
- Adobe Gamma. As the name suggests, this is the brainchild of a well-known company that gave the world Photoshop. Once the utility was part of the main software, but later it was undeservedly removed, since it was created for CRT monitors. People who work with photography and images in general believe that it is quite applicable to modern devices. over, it is one of the best.
- Power Strip. The utility is good because it works with a whole list of maps and gives you access to many settings. In it, you can adjust not only the color, but the clock frequency of the monitor and other important parameters.
The appearance of stripes on the screen is not a reason to buy a new monitor, card or system unit. You can often fix the defect yourself, and I hope this article will help you do it.
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Types of faults
If horizontal stripes appear on the TV screen, this indicates a malfunction of the equipment. This phenomenon can be accompanied by other breakdowns:
- “snow” appears;
- the screen has gone out, and the sound is heard. the defect is in the backlight system;
- the appearance of spots is associated with mechanical stress;
- vertical stripes are formed.
What to do if horizontal stripes appear on the TV screen?
Often people are faced with such a problem that horizontal stripes appear on the TV screen. The reasons include various factors. It should be borne in mind that the equipment screen is considered the most vulnerable spot, and the appearance of stripes is a common breakdown. This distorts the picture and makes watching TV uncomfortable.
If horizontal stripes appear on the TV screen, what should I do? In this case, an urgent professional repair is required. The craftsmen do this work quickly enough. First, the type of breakage is determined, and then the defect is eliminated. In addition to horizontal stripes, masters remove vertical and colored.
If horizontal stripes appear on the TV screen, then you need to check the attachment of the cable that transmits the image. It is also necessary to check the health of the antenna. Often the problem can be fixed on its own.
LCD TVs transmit images according to the following rules:
- the light of the lamp housed in the panel is transmitted through the LCD matrix;
- its work is controlled by the processor, which creates a color image by filters.
LCD screens have a clear image. There is no harmful radiation from them, which worsens human health. And the screen does not flicker. In a plasma panel, the image appears due to the effect of electricity on a special gas, which turns into plasma and forms a glow of fluorescent components. The images are created by the processor. In order for the plasma to serve for a long time, the sun’s rays must not fall on it.
If horizontal stripes appear on the TV screen, the cause may vary. Only a specialist will help to establish this exactly. But still, according to some signs, it is possible to determine the reasons. White horizontal stripes are caused by a vertical scan malfunction that is interfered with by power surges. This defect can cause the chip to crack.
Thin vertical stripes indicate matrix breakage. This is also due to voltage drops. If there are more bands, then the help of the master is required. Colored stripes represent the sensor defect. Narrow black stripes indicate a problem with the decoder. If you do not remove the strip immediately, then over time the screen will go out completely. And the repair price will be much higher.
If horizontal stripes of a multi-colored appearance appear on the TV screen, as well as ripples, stains, then the cause of the defect may be in the disconnection of the contact cable from the matrix. In this case, you need to re-solder the contacts. Often the problems are associated with a malfunctioning motherboard. In plasma, this disadvantage appears due to the deterioration of the image control unit.
If horizontal stripes appear on the TV screen (“Samsung”. Manufacturer, or any other), the equipment must be repaired. But there are tips on how to prevent this:
- Dust must not enter the TV. This can damage the matrix, which occurs due to overheating of the loop. Remove dust with a vacuum cleaner.
- Moisture is detrimental to the technology as it oxidizes the contacts, so a short circuit can occur.
- It is necessary to avoid mechanical damage to the TV. Equipment should not be on poor-quality brackets.
If horizontal stripes appear on the TV screen, then you need to contact a workshop for the repair of such equipment. You should not do this work yourself, since without the necessary knowledge and skills, you can only worsen the breakdown. And then restoration will be expensive.
The cost of repairs, if the board burns out, is quite high, since the matrix must be replaced. Therefore, you need to trust the work to trusted companies that guarantee quality.