TV repair: causes of breakdown, types of malfunctions

Almost every modern family has a TV at home. This technique is used very often, and sometimes around the clock, so its parts wear out quickly. Buying a new device is not cheap, especially since it is considered one of the most expensive types of household appliances. In the event of a breakdown, it is more profitable to contact a specialist so that he can make a professional TV repair.

Causes and types of malfunctions

Before repairing the TV, the technician must find out the reason. Most often it can be:

• a defect during the manufacturing process. This problem can arise with completely new technology;
• parts are worn out or outdated;
• mechanical defects have occurred.

It can be difficult to repair the device yourself. Some malfunctions occur unexpectedly, and if you try to fix it yourself, you can make it even worse. Sometimes the device breaks down due to mechanical defects, which are:

1. Reboot the TV. It occurs when the device is turned on, when a splash screen with a logo appears on the screen, followed by a black screen, after which the screen saver turns on again and so on ad infinitum. In this case, the motherboard is most likely defective. The cost of replacing it directly depends on the number of options on the TV, most often this type of breakdown is expensive.
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2. Black screen, but sound works. Here the LED backlight or LED driver is out of order. The difficulty in solving this problem lies in the fact that you will have to remove the matrix, and this procedure requires accuracy. Prices are based on the diagonal of the screen - the larger it is, the more expensive the service is.
3. There is sound, matrix backlighting too, but no image. The t-con board, which is responsible for displaying the image to the matrix, has been deprecated.
4. The device does not turn on. In this case, both the motherboard and the power supply may be faulty. If problems arise during a thunderstorm, all units of the device may be faulty.

Choosing a location for technology

Quite often, before starting to use a particular technique, few become familiar with it. instructions, which clearly indicate preventive measures during operation, helping to avoid possible breakdowns. The basic rules of use begin with the location of the device:

• do not place the TV on the edge of the bedside table;
• if it is decided to hang the TV on the wall, then you need to carefully check the stability and reliability of the brackets;
• the wires from the device should not be let out so as not to stumble over them and accidentally pull them out;
• you cannot put equipment next to heating devices;
• Avoid direct sunlight on the TV.

If you do not follow these guidelines, there is a high probability of the device falling or malfunctioning. Correct connection plays an important role, because in case of overvoltage, the TV can deteriorate. If the HDMI cable is installed incorrectly, the motherboard will malfunction, since this cable must be connected when the instrument is turned off.

When the TV has been in use for more than five years, it may have problems turning on. For example, the sound works immediately, but the image appears after a couple of minutes. In this case, the power supply is defective. If you do not repair it and continue to torment the equipment, as a result, the unit may burn out, which will significantly increase the cost of repairing the TV.

Some firms offer the purchase of old equipment, even if it is out of order. Later, they use the broken TV for spare parts. You can add money to the amount received from the sale of a broken device and purchase a new one.

TV care

To prevent premature breakdown, household appliances need to be looked after. Most often, the screen fails, because any contact with a sharp object, blow or even touching with your fingers can lead to its malfunction. Another reason for a non-working screen can be improper wiping of its surface. Do not use alcohol, glass cleaner, soda, washing powder and many other aggressive substances.

If you have plants nearby, there may be a threat of moisture getting into the equipment. Do not cover the ventilation gaps in the case.

To wipe the screen, you can use:

1. Special dry wipes. Do not allow the presence of lint on the fabric. It is better if it is microfiber. The rest of the wipes will leave pellets.
2. Gels, aerosols, foams. Specially formulated products have a cleansing and antistatic effect. The most suitable are aerosols and gels.
3. Filler napkins. The main thing is that such a product should be free of lint and alcohol in the composition.

You can use a flannel cloth as a handy tool to wipe the screen. You need to take two rags from this material, moisten one of them slightly. Wipe the screen first with a damp cloth and then dry.

To ensure the LCD monitor is always in order, you must turn off the machine after six hours of continuous operation. If the image brightness is dim, you can replace the backlight. It is recommended to maintain an interval of at least 15 seconds between switching the device on and off.

Preventive cleaning

Any technique requires prophylaxis. It is recommended to hold it for the TV at least once every three years. Usually, a lot of dust is clogged inside the device, which often causes malfunctions in its operation.

In order to clean the TV, you can call a specialist or do it yourself at home. It is recommended to take the device outside before the procedure. and, turning on the vacuum cleaner to blow out air, clean the TV. For the same purpose, you can use a vacuum cleaner for cleaning at home, setting it to the suction mode.

A brush is used as an improvised means. But you need it to have a soft pile that will not fall out.

During cleaning, the master disassembles the TV by unscrewing the screws from the back cover. You can start this procedure only 2 hours after switching off. During this time, all capacities are completely discharged, except for the anode voltage multiplier. It is discharged just before cleaning.