Samsung TV Repair
It so happens that your favorite equipment can not turn on, and the warranty has already expired. And it often happens that the money for the master is completely in short supply. In this case, you have to find out how Samsung TVs are being repaired and do it yourself. In this article, we will consider the main causes of breakdowns and give some simple tips for self-repair.
to contents ↑The main components of breakdowns
Before you start fixing the device, you need to diagnose it and understand what exactly the malfunction is. This will save time both for you and the master (if suddenly you eventually resort to his help). In any case, understanding the components of an electrical appliance is new knowledge that will come in handy someday.
So, there are only three main components that you need to know about when repairing Samsung TVs. In fact, they are separate devices that to some extent interact with each other:
- The power supply unit. The entire operation of the TV depends on this node. It exists in order to provide the remaining parts with the necessary amount of electric current.
- TV inverter. This unit 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 backlight.
- The main board. It is the most difficult to fix the device - it is better to immediately seek the help of a professional.
Important! To avoid damage caused by power surges, use special protective devices -surge protectors for household appliances.
Everything should be in the last block in order to manage the nodes described above and omitted, smaller ones. That is why this detail can also be divided into several main components:
- Matrix. Declares itself during interference on the display. Therefore - this detail is responsible for the image.
- SPU It is a central processor. It serves to receive signals, process them and send them to slaves.
- Timing controller. It builds an image on the matrix, using signals generated by the voltage supply unit.
to contents ↑Important! Modern technology requires proper maintenance. How to properly care for TVs - find out in our separate review “Cleaners for TVs”.
DIY repair
In this section, we will conduct a small diagnosis of the main components, try to figure out what the problem is, and then give some tips on the example of one self-repairing Samsung TVs.
Breakdown 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 main sign of a part breakdown is a blinking indicator, while the TV has not turned on yet. Also, a sign of a breakdown in the PSU (power supply) may be a delay in turning on the TV or the inability to start at all. In addition, there may be such a picture: when the device starts up, the image does not appear, but the sound is working at this time. In addition to the above signs, there may be others, because BP can declare itself in different ways.
- Inverter. The main sign of failure is a malfunction in brightness. For example, it may be that the brightness on both sides of the panel is expressed differently.Still - as in the example above: there is sound, but no image.
- The main board. The problem appears when the TV cannot recognize the signals given to it by the user. It can also manifest itself when any interference appears on the TV or any difficulties arise in the TV settings.
- Matrix. With its breakdown, various interference and distortion of the TV display are associated, such as: white stripes, interference, color gamut violation, and more. The causes of matrix distortion are most often caused by mechanical damage, such as a strong shock to the screen.
Important! It is impossible to fix the matrix, but it is quite possible to replace, only the price will be quite high. We recommend purchasing a new TV - it will be much more profitable.
Problem Solving Example
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 specific example. In this case, the cause of the malfunction will be covered in the monitor of the device.
So, there are several stages to go:
- In the first stage, we have to open the back cover of the TV and examine it from the inside. At the very beginning of this procedure, you need to limit the flow of electricity into the device by unplugging it from the outlet and removing all cables.
Important! Opening the device, it is desirable to remember each fastener and the hole into which it was screwed.
- After all this, you need to carefully remove the back cover.
- Next, disconnect the connectors of the high-voltage wires located on the inverter board using special tweezers.
- Identification of the cause. Here we need a diagram of the disassembled equipment. We take a multimeter that has the function of dialing, measuring current of various characters, as well as measuring capacitance of capacitors.
- We replace faulty components. You will need a hot air and conventional soldering station that can regulate the temperature of the tip. It should be extremely careful, because the device chip is very sensitive. Restore broken contacts.
- We assemble the monitor. This stage is similar to the first, only goes in the opposite order.
to contents ↑Important! If the TV is not repairable and you decide to buy a new one, our will help you choose the best model. “TV rating”.
Stock footage
It is almost impossible to learn how to fix a TV yourself, because here the main factor is experience. In this article, the reader understood the signs of failure of various parts of the TV and saw a specific example of how the Samsung TV repair procedure should go with a classic malfunction. But if you heard about all this for the first time - it is better to contact the master immediately. At home, independently, without experience, it is advisable to limit ourselves to only cleaning the remote control as such a need arises.
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