Premature failure of television equipment becomes the reason that users are faced with the question: should they try to repair the device themselves or should they still seek help from a service center?
The answer will directly depend on the type of Samsung TV malfunction. Naturally, some breakdowns are minor, so they can be easily fixed at home and without professional equipment.
Complex hardware damage, for example, failure of the LED matrix, cannot be repaired with your own hands. Therefore, it is better to entrust this difficult work to professionals. Now let's look at the most common problems with Samsung TVs. We will also create an algorithm for finding a breakdown.
Basic malfunctions of Samsung TVs
If we talk about models of the first generation of LCD TVs, then first of all we should talk about the problem of electrolytic capacitors in the filters of power system modules. However, the manufacturer took into account the weak link in this system, so owners of LED models extremely rarely encounter a breakdown of this type. It is possible that this is due to lower power consumption by diode backlight converters.
Continuing to use a TV with broken power filters is likely to cause software malfunctions. Firstly, the search settings on the TV will be erased, and you will have to search for channels again. Secondly, various image distortions will gradually begin to appear. Thirdly, the screen backlight will not work correctly. A complex software failure will cause the device to not turn on at all.
Therefore, there is no need to delay. Repair the LCD TV's power supply and then replace the contents of the EEPROM memory.
We've sorted out the electrolytic capacitors, but this is far from the only typical malfunction of Samsung TVs that manifests itself in a breakdown of the power supply:
- Ring cracks in the soldering of the transistor.
- Breakdown of the sealant followed by a short circuit and breakage of the resistor.
Thus, the power system is perhaps perhaps the most vulnerable component of Samsung television equipment.
To eliminate defects in the image, which are often presented in the form of stripes tilted to the side, it is necessary to replace the capacitor on the motherboard. There is absolutely no need to replace this module in the TV set-top box.
A huge number of LED models, especially the 5 series, are equipped with matrices with LED backlighting of poor quality. Sometimes there are devices in which the voltage to the diodes is incorrectly calculated. This defect will make itself felt during the first year of operation of the equipment. Over time, the image fades and then disappears completely.
Authorized service centers act in accordance with the manufacturer’s recommendations, therefore they replace diode lines or limit the current level on LED drivers, this allows you to extend the service life of the device. It is worth noting that this is far from an ideal solution, since the defect appears again in the future.
It is worth talking separately about such problems as frame scanning and line scanning. This is a hardware failure that manifests itself in the form of image distortion. Problems with horizontal scanning occur due to damage to the winding. We need to restore it and change the stabilizers to improve the voltage level. With vertical scanning, everything is a little more complicated; sometimes you have to change the roller, and in some cases the transistors.
Of course, the list of typical faults includes mechanical damage to the screen. Such a breakdown occurs due to non-compliance with operating rules and is solved by replacing the matrix and backlight.
Capacitors burned out
Capacitors on the TV can burn out - they are used to accumulate charge and energy of the electric field. This problem is especially common in models with a liquid crystal display. One of the reasons for the breakdown of these components is sudden voltage changes.
To determine whether the capacitors are faulty, you need to remove the back cover of the TV. All the main components that are responsible for the operation of the TV are on the board. If the capacitors are swollen - slightly increased in size - this means that urgent replacement of parts is required. Sometimes swollen capacitors explode, which can cause damage to other components on the board.
Problem search algorithm
Regardless of where the repair is carried out: at home or in a professional workshop, you first need to diagnose the malfunction and determine the cause of the breakdown. A convenient concept has been developed especially for you to quickly determine the source of the problem. The algorithm allows the user to diagnose and fix the problem himself.
We bring to your attention a table that presents frequently encountered symptoms and their interpretation, that is, why they appear. Based on these instructions, even a beginner will be able to quickly determine why the LED screen is not working or identify any other malfunction.
Sign | Source of the problem |
TV won't start | The power cord is damaged, the power adapter is burnt out, the power button is broken |
The screen is not backlit, there is a picture, but it is very dim | The lamp or LEDs do not work; malfunctions in the backlight power system are possible |
There is no sound or very wheezing | The sound card amplifier and wiring (microcircuit and components located next to it) have failed. |
TV screen lights up but there is no picture | The tuner and its circuits are broken, problems with the graphics processor are possible |
Let us note that in no case should you get ahead of yourself; start diagnostics with a visual inspection of the equipment used. If you find darkening on the microcircuits or carbon deposits, or rupture of components, do not rush to replace them. Hardware components that have burned out may be a sign of a short circuit; therefore, it is possible that the source of the problem is located in a completely different place. Before starting diagnostics, be sure to turn off the power to the television equipment.
Proper handling of your TV is the key to its long-term service!
Equipment often fails due to improper use.
Unscrupulous attitude towards the appearance of minor malfunctions, mechanical stress, moisture penetration into the body - all this leads to wear of components, as a result of which problems appear.
One of the most vulnerable points in modern TVs is the inverter. This part fails quite often. An inverter is an expensive part, so a specialist will most often recommend repairing it rather than replacing it. This problem, due to which the image disappeared, is typical for TVs of LG and Samsung models.
How and what faults can you repair yourself?
You can independently eliminate software failures and external violations. That is, breakdowns whose repair does not require disassembling the television equipment. It is not surprising, because the average user does not have professional equipment and proper experience at his disposal.
Now let's look at the most common breakdowns that you can repair yourself.
Power indicator is off or flickering
First, you need to check the serviceability of the outlet or extension cord to which the TV is connected. Secondly, you should inspect the power cable, it may be damaged. If the problem is a broken outlet, simply connect the device to a different power source.
Quite often, problems with display arise due to the fact that the device does not wake up from standby mode. The method for eliminating a software failure is universal; you just need to change the settings for switching from standby mode, after which the TV will work correctly.
Setting up TV broadcast
If you have a “digital” connection, but at the same time all channels disappeared at one point, then do not rush to call the service center. First you need to try to restore them yourself. Perform manual or automatic setup. Also try to adjust the antenna, point it towards the tower. Switch channels and simultaneously change the location of the antenna to fix the optimal vector.
The remote control does not work
The most common reason is that the batteries are dead. So change them first. If the problem has not disappeared, then point at the smartphone’s IR camera and press the buttons on the remote control; if it does not light up, then the device is broken. There is absolutely no need to repair it; you can download an application on your smartphone that will allow you to control the TV.
Problems with Smart TV
In some situations, the sound disappears or the image of a Samsung TV is distorted due to software glitches. To eliminate them, update the firmware promptly. It is better to disable automatic updates. Do everything by hand. The process of installing updates does not take much free time.
User errors
The breakdown of complex electronic equipment is always expensive - the cost of repairing plasma or LCD screens often turns out to be completely unprofitable for the owner. When your SAMSUNG TV doesn't turn on, don't immediately suspect the worst. Most likely, the causes of the problems are elementary errors or accidents that can be fairly easily eliminated.
To eliminate most user errors, a detailed study of the manual supplied with the TV is usually sufficient: many typical problems are listed there.
When is a master needed?
Hardware failures can only be repaired by a qualified technician. Therefore, if the power supply of your Samsung Smart TV has burned out or dots appear on the screen, be sure to contact a service center for help.
The image is too dim
This symptom indicates that there are problems with the backlight. The fact is that all the LEDs are connected in series, so if one lamp burns out, you have to completely change the entire system. It is not uncommon for the backlight to stop working due to voltage problems. In some situations, a dim picture is a sign of problems with the LED driver.
No sound
TV restoration involves testing the performance of the power supply, as well as the entire chain: from the adapter to the chip responsible for playing audio tracks. It is possible that the power supply is working, but the microcircuit is damaged.
Common LG TV error codes and how to fix them
LG TV error codes are slightly different, even with the same problems as Samsung, the fault ID will be different.
How to fix errors on LG TV:
The image is very distorted
The image on a Samsung LED TV looks like a narrow stripe; a solid or color screen appears. The problem appears immediately after switching on or after 5-10 minutes of operation. Sometimes the picture on the screen freezes, the screen becomes dark, and after turning it off and on again the problem appears again.
Causes:
- Failure of the video amplifier or processor (in 95% of cases only one color appears on the screen). It is necessary to call a teleworker to carry out accurate diagnostics and repairs. It is impossible to fix the problem yourself without special equipment.
- Problems with the LCD matrix - the cost of repairs can reach up to 80% of the cost of the TV. Repair is only advisable for new TVs under warranty.
You can determine the failure of the LCD matrix yourself. To do this, with the device turned on, lightly press the screen. If the matrix is faulty, the image will freeze at the point of pressing, and blackouts or severe color distortion may occur. Matrix failure is rarely sudden; as a rule, with this problem, “dead pixels” first appear, then their number increases.
There is no image on the screen, there is sound
The TV screen appears dark, but the device responds to remote control signals. When you turn it on/off, a splash screen with a company logo appears.
Causes:
- No signal - check the external antenna connection.
- Incorrect brightness settings - go to the "Pictures" menu and adjust the brightness, turn off the power saving mode.
- Faulty LED backlight - requires disassembling the panel and replacing burnt out LED strips.
- Failure of the inverter - the electricity converter that supplies current to the LED.
If the inverter and LEDs are faulty, there is actually an image on the screen, but if there is no backlight, it becomes very dark. To diagnose the problem, darken the room and hold a flashlight to the screen. If you see a picture, then the problem is with the LEDs or the inverter. You can replace faulty parts yourself or call a specialist.
Diagnostics
Obviously, if the screen of your Samsung TV has darkened, then it needs qualified diagnostics to determine what exactly is broken. An experienced electronics repairman will test the functionality of the elements of the equipment submitted for repair and determine whether in this particular case it will be necessary to replace the matrix or some other manipulations on it.
The simplest diagnostics can be done with your own hands. In particular, if your Samsung device has a flickering screen, flickering images, or streaks on its display, check the quality of all external connections of the wires connected to it.
We recommend using the self-diagnosis function, which is equipped with all modern models. You can find the corresponding item in the main menu – Support – Self-diagnosis.
In some cases, calibrating the LCD TV will help solve the problem.
However, if, nevertheless, on the LED display of the Samsung device in question there is no displayed image, but there is sound transmission, most likely there are problems with its backlight or other internal electronic modules, the solution of which will require professional intervention.
Why Samsung won't connect to Wi-Fi
There may be several visible reasons for a connection error. Most often, problems arise from the router or internal network settings. Before looking for the reasons for the lack of connection, it is necessary to conduct a superficial diagnosis:
If your Samsung TV does not connect to the Internet, but the connection to the wireless network was successful, it is recommended to restart the router and turn off the power to the TV for 10-15 minutes. After which you will need to reconnect and in most cases the problem disappears. If the TV still does not connect to the Internet, you will need to identify the problem and fix the error.
Special cases when connecting a TV to Wi-Fi
In most cases, connection problems can be solved by setting the appropriate settings, but sometimes special situations arise that also require solutions:
Despite the convenience of a wireless connection, a classic cable connection is still the best way to connect a Smart TV to the Internet. The cable will provide a more stable connection and will not require any special settings. The only drawback is the issue of aesthetics, it is a visible cable, but this can be solved without any problems. There are many ways to hide the wire so that nothing distracts you from watching TV.
Error Exe 001 on Samsung Smart TV: reasons, how to fix?
First, let's look at Samsung TV errors, since there are a lot of them, and we already have more comprehensive information on them.
What to do if your Samsung TV produces errors with the code:
How to fix error_model_bind on Samsung Smart TV?
You can fix any damage yourself. Depending on the type of problem, there is a specific solution. It is recommended to do a full reset. Be careful! This method will remove all parameters. You will have to enter the data again. Make a request to Samsung technical support. Ask the necessary questions by phone. The statements provide steps to resolve such an error. Also try restarting your TV, modem, and home Internet. Temporary glitches happen in any system. How to install and configure Forkplayer for LG Smart TV: fresh DNS 2021
The TV is connected to the network, but there is no Internet connection
When a Samsung TV does not connect to the Internet despite a successful connection to a Wi-Fi network, you should check whether there is an Internet connection on other devices; perhaps the problem is on the part of the provider. If you can’t connect only the TV, you should try to manually register DNS. For this:
Manually rewriting the IP address and port number (whore) is not recommended, as this will not lead to results. When connected to the network, this data is filled in automatically. When changing DNS, the Internet connection is restored in most cases. If this does not happen, you should reset the internal network settings on the TV.
To reset the settings, you must also go to the service menu and open the “Network” section. Select “Settings”, “Return to factory settings”. Immediately after this, the connection to the network will be reset and the TV may again request a network key when connecting again. Resetting to factory network settings is not available on all Smart TV models from Samsung; in some cases, you will have to completely reset all settings (Smart Hub reset).
Reset the general settings of the TV as follows:
The system may require a password, which is written in the TV service book. Typically this is either "0000" or "1111". After resetting the settings, reboot the device and connect by specifying the network key.
Samsung TV does not connect to wi-fi
Smart TVs are becoming more popular every day, because TVs with an operating system and the ability to connect to the Internet allow you to download applications and use various TV services. All you need is to connect your TV to the Internet. This can be done either directly using a cable or via Wi-Fi. But who wants to run a cable that will attract unnecessary attention and spoil the appearance? Therefore, people resort to remote connections much more often. But what should you do if your Samsung TV doesn’t see the Wi-Fi network or gives an error when you try to connect? There are several reasons for such errors, and each of them has its own solution.