TechnologiesElectronics

What if there are horizontal bars on the TV screen?

Often people are faced with such a problem that on the TV screen appeared horizontal stripes. To the reasons carry different factors. It should be borne in mind that the screen of technology is considered the most vulnerable place, and the appearance of strips is a widespread breakdown. Because of this distorted image, so watching TV becomes uncomfortable.

Features of repair

If horizontal bands appear on the TV screen, what should I do? In this case, urgent professional repair is required. Masters perform this work quickly enough. First, the type of failure is determined, and then the defect is eliminated. In addition to the horizontal stripes, the masters remove vertical and color ones.

If horizontal stripes appear on the TV screen, then you need to check the cable attachment that transmits the image. It is also necessary to check that the antenna is working properly. Often the problem turns out to be eliminated on their own.

Screen device

LCD TVs transmit images according to the following rules:

  • The light of the lamp placed in the panel is passed through the LCD matrix;
  • Its work is controlled by the processor, which filters create a color image.

Liquid crystal screens have a clear image. They do not have harmful radiation, which worsens people's health. And the screen does not flicker. In the plasma panel, the image appears due to the effect of electricity on a special gas, which turns into a plasma and generates a fluorescence of the fluorescent components. Images are created by the processor. To ensure that the plasma lasts a long time, it should not be exposed to the sun's rays.

Types of malfunctions

If the horizontal screen appears on the TV screen, then this indicates a malfunction of the equipment. This phenomenon can be accompanied by other breakdowns:

  • There is a "snow";
  • The screen is turned off, and the sound is heard - the defect is in the backlight system;
  • The appearance of spots is associated with mechanical action;
  • Vertical bands are formed.

Causes of breakage

If horizontal bands appear on the TV screen, the cause of this phenomenon may be different. It is only expert who will help you to fix it. But nevertheless on some signs to define the reasons it is possible. White horizontal bars appear due to a malfunction with a vertical scan, which is prevented by voltage jumps. This defect can lead to the cracking of the chip.

Thin vertical bands indicate a breakdown of the matrix. This is also due to voltage drops. If the bands become larger, then the help of the master is required. Color bars characterize the defect of the matrix. Narrow black bars confirm the presence of malfunctions with the decoder. If you do not remove the strip at once, then eventually the screen will go out completely. And the repair price will be much higher.

If horizontal stripes of a multi-colored appearance appeared on the TV screen, as well as ripples, divorces, the cause of the defect can be in detaching the contact loop from the matrix. In this case, it is necessary to solder the contacts. Often, problems are caused by a malfunction of the motherboard. In plasma, this deficiency appears due to the deterioration of the operation of the image control unit.

Protection from strips

If the horizontal screen appears on the TV screen ("Samsung" - the manufacturer, or any other), the equipment must be repaired. But there are tips on how to prevent this:

  • Do not allow dust to enter the TV. This can damage the matrix, which is due to overheating of the loop. Dust must be vacuumed.
  • Moisture adversely affects the technique, as it leads to oxidation of the contacts, so a short circuit may occur.
  • Do not allow mechanical damage to the TV. The equipment should not be on poor-quality brackets.

Screen repair

If horizontal stripes appeared on the TV screen, then it is necessary to contact the repair shop of such equipment. Do not do this work yourself, because without the necessary knowledge and skills can only worsen the breakdown. And then the recovery will be expensive.

The repair price, if the board was burned, is quite high, as a replacement matrix is required. Therefore, you need to trust the work of trusted companies that guarantee quality.

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