Samsung TV repair
Premature failure of Samsung TVs often becomes the reason that the owner is faced with the question: "Is it worth trying to repair the device on your own, or is it better to turn to professionals for help?" The answer depends only on the nature of the malfunction: some failures are minor, so they can be dealt with at home, while others require the intervention of service center specialists. Let's dwell on each of them in more detail.
Malfunctions and diagnostics
If you've just bought a Samsung TV, whether it's plasma, CRT or LCD, the chances are very low that it's broken. The only reason may be a factory defect, which happens extremely rarely, or your own carelessness if you did something wrong at the time of transportation or connection of the equipment.
If your equipment has been functioning properly for some time, but unexpectedly, when you try to turn it on, it stopped working, then looking for the cause of such a problem, according to certain signs, will help determine whether it is worth trying to cope with the breakdown with your own hands.
Often, users of TV receivers begin to panic and call the wizard with the most elementary malfunctions in the TV. Do not do this - first try to diagnose yourself.
First, check what operating mode your TV receiver is in. For example, in many Samsung models, the Standby option is installed - this is a standby mode, when it is on, a red light on the outer panel of the unit is on. Please note that it is not recommended to leave the television receiver in this mode for a long time, since when it appears to be off, all the power supply circuits are under high voltage and wear out.
If there is a sudden power surge, the equipment may burn out, after which the receiver stops starting.
To prevent such a malfunction, the unit must be turned off with a button from the panel - this will significantly reduce the risk of electronics burnout... If you see an indication response, but the TV does not respond to commands coming from the remote control, then try turning on the unit through the panel.
If after that the picture is loaded, then most likely the malfunction concerns the remote control. On some Samsung TVs, a clicking sound is heard when the lock is activated. You cannot fix such a failure with your own hands, the only reasonable way out in this situation is to contact the service center.
If the LED-button changes its color from red to green and vice versa, but the TV does not start, most likely, the control unit generated a signal to turn on the device and sent it to all the necessary modules for execution.
But if any of them fails, then the command will not be executed. For example, when there is an interruption in the operation of the power supply, the television receiver will not be able to enter the desired functional mode. In this case, the processor will not receive information from it about normal operation, so it will immediately send a feedback signal to cancel the device turning on - thereby returning it back to sleep mode.This blinking can last for a long time until you eliminate the root cause of the problem: repair the inverter, replace the transistor, recycle the power supply completely, or fix some other malfunction.
If the indicator of the television panel is lit in green, nevertheless, the equipment does not even think to start, then this situation can rather be called ambiguous. This requires an experienced craftsman who, with the help of professional equipment, can check the functionality of the electronic board, measure the voltage supplied to it, and also examine the start signal, backlight and many other problems.
If the light comes on, giving a signal that it is ready for operation, but no commands are received from the main board, and the device does not respond to the remote control and does not respond to the panel buttons, then with a high degree of probability you are dealing with software failures. provision.
In this case, only a software update and a complete flashing can return normal operation in the motherboard.
If it takes too long to turn on the TV receiver, this directly indicates that one of the units of the unit is out of order. For Samsung LCD TVs and CRT models, the reasons for this failure can vary greatly. Identifying them without the necessary tools, skills and knowledge will be difficult.
How to repair?
If you are dealing with external breakdowns, as well as a system failure - that is, with any breakdown that does not need a TV receiver disassembling beforehand, you can try to fix such a malfunction yourself. All other types of work require some experience and specialized equipment.
Power indicator is off or flickering
In this case, you need to check the operability of the outlet, as well as the extension cord to which your TV receiver is connected. Besides, you need to inspect the cable for mechanical damage, it is possible that it was damaged by pets. If the problem comes down to a failed outlet, you just need to reconnect the device to some other power source. If the cable is chewed or frayed, it will need to be replaced.
TV broadcast setting
If you are connected to digital broadcasting, but once saw that all your channels suddenly disappeared, do not worry. First, try to restore them yourself at home. For this each TV provides the option of manual or automatic tuning. Antenna problems should not be ruled out either. Try to adjust it, redirect it towards the tower. It is best to perform these manipulations at the same time: switch channels and change the location of the antenna - this way you can fix the vector that is optimal for broadcasting.
Remote control does not work
The most common reason the remote control does not work is because of its old batteries. First, try inserting new ones, if after replacing the problems do not disappear anywhere, then you need to try to check the operation of the remote control. You cannot see infrared radiation with your own eyes, but it is beautifully displayed in photographs. Diagnostics is simple: point your phone camera at the module and take a picture at the moment when you press the buttons. If you notice a glow in the photo, it means that the remote control is working properly, otherwise it needs to be repaired or bought a new one.
Smart TV problems
In some cases, users are faced with distortion of audio and video sequences. Samsung TV receivers, especially the latest models, are prone to problems with software glitches in the Smart TV app. For in order to neutralize them, it is necessary to regularly update the firmware, and it is advisable to turn off the automatic update option.
Does not turn on
If the TV does not turn on, then the reasons for such a malfunction can be very diverse, ranging from problems with the electrics and ending with a failed control module. Anyway you will not be able to identify the problem yourself, as well as fix the unit - this will require professional equipment. In some cases, when it comes to a faulty electronic board, the cost of repairs will be comparable to the cost of buying a new TV.
Other problems
All malfunctions associated with hardware failures can only be eliminated by experienced technicians. That's why if dots, stripes appear on the display, or the power supply unit of Samsung TVs burns out, then you must definitely contact the service center.
Image is too dim
If you see an overly dim image, then you are probably dealing with a failure of the backlight indicators. The fact is that in Samsung TVs, LEDs are connected in series, so if even one lamp burns out, the entire system will have to be replaced.
No sound
In order to restore the sound of the TV, it is necessary to perform a full test of the functionality of the power supply, as well as the entire circuit going from the adapter to the circuit responsible for playing audio tracks. Perhaps it is she who is damaged, while the power supply unit may remain intact and serviceable.
The screen lights up, but there is no picture
Usually this situation occurs when the signal from the receiving unit is not fed to the input of the graphic amplifier. This indicates that the tuner is defective or its circuit is damaged. To test the TV receiver, you need to connect an alternative signal source: it can be a laptop, personal computer or smartphone. If, as a result, a picture appears, then you are dealing with a breakdown of the microcontroller - it needs to be replaced. Such work can only be done by first disassembling the entire TV set.
Recommendations
In order to prevent premature failure of your Samsung TV, you need to follow these guidelines. Find the best location for installing the equipment. Everyone knows that in most cases the user is chosen for a TV place, based on the furnishings of the room, the location of the bed, sofa and chairs on which they will lie or sit while watching movies and TV shows. At the same time, few people think about whether this place is suitable for the receiver.
In order to greatly increase the operating period of the TV, it should not be placed in too cramped niches.
The equipment requires free space, it is optimal that there is at least 10-15 cm between the wall and the equipment. In this case, the receiver will heat up less and, accordingly, will work much longer. Try to keep the screen out of direct sunlight, so it is also not recommended to install the TV in front of windows.
The technique requires proper maintenance. At least once a week, you need to wipe it from dust or use a vacuum cleaner with the smallest attachment. Be aware that dust accumulation inside the device will cause a short circuit. But it is impossible to wash the TV with water, since water, getting inside, causes oxidation of the contacts.
Cleaning the TV is best done with special sprays or wipes. Please note that you need to wipe not only the screen, but the entire body as well.
Special attention should be paid to screen adjustment. Rapid burnout of the pixels of the receiver matrix can be avoided if the screen brightness parameters are correctly set. For this, the Samsung tech manufacturer recommends lowering the brightness. Of course, in this case, the picture shown by the display will not be so juicy and saturated, but the life of the equipment will increase many times over. Try to avoid mechanical damage if the TV is broken and the floor of the screen is deformed - it is unlikely to be repaired.
How to replace the backlight on a Samsung TV, see the video.
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