Samsung TV Repair

It happens that your favorite equipment can not turn on, and the warranty period has expired. And it often happens that there is absolutely no money for a master. In this case, you have to learn how to repair Samsung TVs, and do it yourself. In this article we will look at the main causes of breakdowns and give a few simple tips for self-repair.

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The main components of the failures of

Before you start repairing the device, you need to diagnose it and understand what the fault is. This will save time for both you and the master( if suddenly you eventually resort to his help).In any case, to understand the nodes of the appliance is a new knowledge that one day will come in handy.

So, the main nodes, which you need to know when repairing Samsung TVs, only three. In fact, they are separate devices that interact with each other to some extent:

1. Power supply unit. All the work of the TV depends on this node. It exists in order to provide the remaining parts with the necessary amount of electric current.
2. TV inverter. This node provides low voltage conversion from the part described above, and also satisfies the maintenance of the heat of the lamps and supports them, evenly illuminating the illumination.
3. Main board. Is the most difficult in fixing the device - it is better to immediately resort to the help of a professional.

In the last block everything must be in order to manage the nodes described above and lowered, smaller ones. That's why this part can also be divided into several basic components:

• Matrix. Declares itself during interference on the display. Therefore - this part is responsible for the image.
• SPU.It is a central processor. It serves to receive signals, process them and send them to slave devices.
• Timing controller. Arranges the image on the matrix, using signals generated by the electric power supply unit.

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Self-repair

In this section we will conduct a small diagnosis of the main nodes, try to figure out what the problem is, and then give some advice on the example of one self-repair Samsung TVs.

Fault diagnosis

First you need to find out what the error is. To do this, we will consider each node and its components:

• System power supply unit. The first and the main sign of the component failure is the blinking of the indicator, while the TV has not yet turned on. Also a sign of a breakdown of the PSU( power supply unit) may be a delay in turning on the TV or the inability to start at all. In addition, there may be a picture: when the machine starts, the image does not appear, and the sound at this time works. In addition to the above features, there may be others, because the BP can declare itself differently.
• Inverter. The main sign of failure is a malfunction of brightness. For example, it may be that the brightness is differently expressed on both sides of the panel. Still - as in the example above: there is sound, but there is no image.
• Main board. The problem is manifested when the TV can not recognize the signals that are given to it by the user. Also, it can show itself when there are any disturbances on the TV or any difficulties in setting up the TV.
• Matrix. With its breakdown, various interferences and distortions of the TV display are associated, such as: white stripes, noise, color gamma violation and so on. The causes of matrix distortion are most often caused by mechanical damage, such as a strong impact of the screen.

Important! The matrix can not be repaired, but it can be replaced, but the price will be high enough. We recommend to buy a new TV - it will be much more profitable.

Sample

So, after a little diagnostic work, we figured out the problem of a malfunction. Now we can start repairing the Samsung TV with our own hands.

There can be a lot of problems with such a TV, so let's try to figure out one particular example. In this case, the cause of the malfunction will be covered in the monitor of the device.

So, we have to go through several stages:

1. In the first stage we have to open the back cover of the TV and inspect it from the inside. At the very beginning of this procedure, you need to limit the supply of electricity to the device, disconnecting it from the outlet and removing all the cables.

Important! Opening the device, it is desirable to memorize each fastening element and the hole into which it was screwed.

1. After all this, you need to carefully remove the back cover.
2. Next, disconnect the connectors of high-voltage wires located on the inverter board with a special tweezers.
3. Revealing the cause. Here we need a diagram of the technique to be disassembled. We take a multimeter that has the function of continuity, current measurements of different characters, and capacitor capacitance measurements.
4. We replace faulty components. It will take a hot air and conventional soldering station, which can regulate the temperature of the sting. Here it is necessary to be extremely cautious, because the device chip is very sensitive. Recover broken contacts.
5. We collect the monitor. This stage is similar to the first, only going in the opposite order.

It is almost impossible to learn how to fix a TV, because here the main factor is the experience. In this article, the reader has figured out the signs of the breakdown of various parts of the TV and saw a concrete example of how Samsung's TV repair procedure with a classic malfunction should be carried out. But if you've heard about all this for the first time, it's better to contact the master immediately. At home, alone, without experience, it is advisable to limit yourself to cleaning the remote control only as necessary.