Why Samsung TV won't turn on and how to fix it yourself

Samsung TVs confidently occupy a leading position in sales, they are chosen by the majority of users. But even such reliable and practical devices are subject to various breakdowns. Users sometimes complain that the Samsung TV does not turn on and the red light is blinking. There are many reasons for this defect, some of which you can deal with on your own. However, certain breakdowns can only be repaired by specialists. Let's figure out why this happens, how to act and in what situations to call a specialist.

• When to contact a service center
• In conclusion

We are looking for a breakdown

If your Samsung TV won't turn on, you'll need to find the problem. You need to start with an external inspection and finish inside the device itself:

• carefully inspect the wire and socket, looking for damage;
• inspect the TV for mechanical damage;
• We inspect the board and all blocks to see if there are burnt elements or cracks on the chip;
• If channels start after a long pause, then there are problems with the Smart TV operating system.

If you have problems with your new TV, carefully read the instruction manual. For a company like Samsung, defects are extremely rare.

Entry of moisture and dirt

What to do if the buttons on the remote control do not work? Channels switch only after several key presses or there is no response at all. It is possible that the button sticking effect occurred due to excessive contamination of the remote control. Similar problems also arise due to the fact that the user spilled water, tea or any other liquid on the remote control.

The liquid penetrates inside the remote control and becomes a catalyst for short-circuiting the contacts. It can also settle under the rubber contacts, forming a sticky layer. Some buttons stop pressing. Many users do not know how to eliminate the effect of sticky keys. Therefore, they begin to press with all their might on the remote control. This is a bad decision and causes the buttons to break.

In order not to aggravate the problem, you need to disassemble the remote control. If you find a sticky layer on the elastic or dirty contacts, then proceed according to the following algorithm:

1. Use a lint-free cloth dampened with alcohol to remove stains. Cotton pads cannot be used as lint will remain.
2. If a sticky spot has formed on top, then the rubber band can be wiped with a regular ear stick. Pre-moisten it in alcohol.
3. A sticky coating remains on the body and must also be removed.

The contacts on the microcircuit and on the rubber band must be cleaned as carefully as possible. Do not use excessive force as this may damage them.

Low-quality remote controls (non-original) react poorly to alcohol and cleaning products containing this substance. To prevent the damage from getting worse, dilute the cleaning fluid with water.

When all components are cleaned, you need to leave them disassembled for about 24 hours. They must dry. Be sure to clean the battery contacts. Some people use sandpaper for this, but this must be done extremely carefully.

What does the indicator say?

You can also determine the breakdown by the current state of the indicator:

1. Does not burn. Perhaps the light bulb itself has burned out. However, if the TV is connected to power but does not start, this is an internal failure. You can accurately identify the defect at the service center.
2. Flashing. Why the Samsung TV does not turn on, but the indicator blinks - this may be a power problem. We check the sockets, the power cord, if everything is normal, then the power supply turns on the protection functionality. Swollen capacitors can contribute to this. They will need to be replaced.
3. Constantly glowing. In such a situation there is no problem with nutrition. But if the TV does not respond to commands from the remote control or the POWER button, most likely the breakdown should be looked for on the main board.

Users note that during the startup process, the device begins to click or squeak and the indicator begins to blink. Such sounds indicate that an internal breakdown has occurred that cannot be dealt with on your own.

Problems with TVs of different brands

If the TV does not turn on, then before you panic and call a service center technician, you need to check all the above reasons for simple problems that occur in any type of television device. And currently, as we have already read above, there are three of them:

• kinescope;
• liquid crystal;
• plasma.

Samsung TVs

First, check the power connection. There are several options:

• the button itself on the TV panel may not work;
• The remote control is faulty or the batteries are dead;
• the integrity of the network cable is broken;
• the socket is faulty;
• problem with the extension cord, if one is used;
• there is no light at all inside the network.

For example, such models of these TVs as:

• le40r81b;
• le32r81b;
• le23r51b;
• le40s62b;
• le20s52bp,

may often not turn on, although the indicator light is on and there is no visible damage. If the indicator does not light, then most often the problem is a simple failure of the socket or lack of light. It’s worth changing the socket or checking with your neighbors for electricity.

If there is light, the mains voltage is present, the LCD TV, for example, does not turn on, although the indicator is on, the remote control is working, then perhaps the fault is in the device itself and it is best to call a specialist service center, especially if the warranty period has not yet expired.

Philips TVs, where to look for the problem

If the TV does not turn on and the indicator light is on, the active mode may not be selected correctly. Modern television devices are equipped with functions that allow you to put the device into “sleep” mode. If this mode was selected, then when you turn on the “TV” mode from the remote control, the TV should respond and turn on.

It is not recommended to solve problems on your own

But if this does not happen, then some parts of the microcircuit, capacitor or power supply may be damaged. It is not recommended to solve problems with this TV on your own. As a last resort, it's best to:

• try turning off and turning on the device again, the problem may lie either in the power button, or in a faulty remote control, or in its dead batteries.
• A dark TV screen can also occur when the signal from the transmitting device is weak, i.e. The antenna may be incorrectly or poorly connected.

Important.
It happens that the TV screen lights up and immediately turns off again. Often this means a malfunction of the device’s microcircuit; only a service center technician can handle this type of malfunction. If the TV still turns on, but for a very long time, then the reason may lie in one of the television units. Only specialists can understand this problem.

LG TV

When the indicator light flashes on TVs of this series brand:

• 42pa4510;
• ld33b;
• 42ld650;
• 42la621v,

its signals indicate device malfunctions. The instructions for the device usually indicate all the blinking codes of the indicator that are responsible for a certain type of breakdown.

Sometimes it happens that the indicator blinks and the TV does not turn on when connecting a television device as a monitor to a computer or player. If the monitor goes into sleep mode, the TV may not turn on, indicating signals from the indicator. This principle of operation is also provided for in modern television devices from other companies, such as, for example:

• Samsung le37c530f1w;
• Philips;
• Rolsen;
• Akira;
• Toshiba;
• Helix;
• Supra;
• Sharp.

In addition, overheating of the internal parts or body of the TV is also a common problem with modern television devices. Even models of well-known brands, being in good condition, may not turn on if they overheat. If you give the device time to rest, the problem may resolve itself.

Watch a video about repairing a Samsung TV

Where to start repairs

The TV may not need repair, but you need to pay attention to the following points:

1. Standby mode. Many people find out about it only when they are faced with the fact that the TV does not turn on. The device is actually in sleep mode and the indicator may be red or green. Read the instructions carefully and disable this mode.
2. Signal problems. Bad weather may cause the signal to deteriorate and the TV screen may appear black. As soon as the weather improves, the image will appear immediately. Also, a weak signal may be due to a broken external antenna.
3. AV, HDMI or wireless connection is running. Perhaps the TV is paired with a computer or smartphone and mirrors their screen. In this case, it is not possible to turn on the television. Therefore, we remove all third-party connections.

There are a number of other problems that you can fix on your own.

Mechanical wear

Some buttons do not respond due to the fact that the layer that was applied to the entire surface of the elastic band has worn off. Even in such a situation, you can repair the remote control yourself. If the conductive coating has worn off, you will not be able to apply it yourself. However, the problem can be solved in other ways:

1. Purchase a special kit for the remote control. It includes round contacts designed for carrying out repair work at home. Glue the contacts in the required place.
2. If the kit you need is not on sale, then instead of contacts you can use ordinary foil. It must be glued to the place where the conductive layer was located.
3. Assemble the remote control and check its functionality. Press the button to change channels or adjust the volume.

Repair without the involvement of specialists

Let's consider situations in which the device does not turn on, but you can repair a Samsung TV yourself.

The remote control is broken

The first thing you need to do is check the remote control, press different keys, and replace the batteries. The problem is that when the plasmas don’t turn on, many people start looking for serious damage and ignore the remote control. On the operating remote control, the indicator will light up or flash each time you press the keys. If it breaks, you can use the control panel on the TV itself. By the way, modern TV models can be controlled from a smartphone.

Access problems

Also, the device may not start due to child protection being turned on. In this case, all buttons on the panel are completely blocked. In such a situation, you need to use the remote control. Without it, the blocking cannot be bypassed.

Power surges

Even when in standby mode, the Samsung TV remains on, which means certain components continue to consume energy. If there is a power surge, the TV is guaranteed to break down. Such problems can be eliminated by installing a voltage stabilizer.

If your Samsung TV does not turn on after a thunderstorm, there was probably a sudden power surge, which led to a breakdown. Therefore, it is recommended to turn off all equipment in the house during a thunderstorm.

Voltage stabilizer for TV

The power key on the TV is broken

If, when you start the TV from the control panel, the red LED goes out or a distinct click is heard, the internal module is blocked. This kind of breakdown occurs due to voltage problems. You cannot do without the intervention of specialists in such a situation, and it is even better not to try, so as not to cause even more harm.

Constant reboot

This problem occurs on models that have Smart TV functionality, and occurs after an unsuccessful update or technical failure. You can solve the problem yourself by installing new firmware. Now, if the reinstallation does not give anything, then you can’t do without the help of specialists. A full diagnosis and major repair will be required.

Backlight problems

The most common breakdown, requiring expensive repairs. Moreover, both LED lamps and the backlight inverter can fail. You cannot do this yourself, only at a service center.

Another interesting feature of this defect is that it is easy to diagnose yourself. To do this, you need to turn on the TV and shine a flashlight on the screen, an image should appear in this place.

Thus, if the Samsung TV clicks and does not turn on, then this may well not be a problem with the power supply, but with the screen backlight.

How to solve the problem yourself?

Now let’s look at situations in which repairing a Samsung TV yourself will absolutely not harm the situation. Therefore, you can figure it out on your own without any hassle.

• Problems with setting the standby mode. The display turns off, but in Standby the device continues to function. In this case, you need to pay attention to the panel LED; as a rule, it lights up red when in standby mode. To start the TV, you just need to exit standby mode by pressing the power button on the front panel of the device or on the remote control.

• The remote control is broken. First you need to change the batteries and also check all the keys. You can always download a special application to your smartphone - TV-remote, as a result of which you can switch channels and adjust the volume using the most ordinary phone.
• The socket is broken. If the indicator on the control panel does not light up, connect the TV to an alternative power source. After this, you can continue to use the device.
• TV viewing is not available. It is likely that the occurrence of this failure is caused by the activation of AV, HDMI or wireless Internet connection. As a result, an image from a mobile device or laptop is displayed on the screen. To resume watching over-the-air TV, simply turn off all devices.

• Low signal strength. Due to a weak signal, only a black screen is visible on the TV screen, often the reason for this is unfavorable weather conditions: excessive rainfall, thunderstorms, etc. Do not rush to take any action; it is likely that broadcasting will resume in a few hours.

To independently determine why the TV does not turn on, you do not need specialized equipment. Now let’s analyze the main breakdowns that users most often encounter.

Check TV mode

This topic has already been partially touched upon earlier, but now we will consider it in more detail. First you need to check what mode the television equipment is currently in. Standby – standby mode, its activation is indicated by a red indicator on the main panel. To resume TV broadcasting, you need to exit standby mode.

Experts strongly do not recommend leaving the TV in this mode for a long time. The thing is that the power supply circuits remain active, that is, they are energized. This means that if there is a voltage drop in the network, the power circuits will burn out. Of course, in the end the TV device will not turn on.

Thus, we figured out why the TV does not turn on, you just need to deactivate the Standby mode. In addition, be sure to turn off the TV by pressing the “Power” button, which is located on the front panel, to eliminate the possibility of burnt-out power circuits.

Check remote control

Why doesn't the remote control work? First you need to replace the batteries. Then you should check the keys; perhaps some of them are stuck and work only after several presses.

If the channels do not turn on the first time, then the problem probably lies in the failure of the infrared sensor. Such failures occur due to mechanical damage or liquid entering the device.

To control the TV with the remote control again, you need to buy a new one or replace it with a smartphone, having first downloaded and installed a special application, which we already talked about earlier.

Checking the outlet

If the indicator does not light and the device does not start either from the remote control or from the key located on the front panel, then you need to check the functionality of the socket. It is likely that the TV does not turn on precisely because of it.

Of course, you should first connect the equipment to an alternative power source (to another outlet or extension cord); if there is no result, then contact a service center, since you absolutely will not be able to repair the elements of the power system yourself.

Another source selected

If you want to watch terrestrial TV, but there is no picture, then check whether you have selected the correct signal source. It is likely that an HDMI cable is connected to the TV, in which case you need to turn it off and activate the connection to the antenna.

When to contact a service center

An ordinary user can cope with breakdowns that do not require disassembling the device. Advanced ones can replace a burnt capacitor or solder a bad contact. However, if there is a defect in the motherboard, you cannot fix it yourself. Moreover, it is better not to do anything at all, so as not to completely break the TV. The services of specialists will be required if:

• the TV will not respond to the remote control or buttons on the control panel, and no external defects have been detected;
• The screen does not turn on, although the indicator confirms that power is being supplied. In this case, diagnostics are needed, since the problem may be with both the board and the backlight;
• The indicator constantly changes color from red to green, there is a problem with the power supply. Here everything can be done by simply replacing the transistor. Although in certain situations only a complete replacement of the power supply will help.

Naturally, there are other reasons that should only be dealt with by qualified specialists. Moreover, in order not to complicate the situation, it is better to immediately take your TV to a Samsung service center.

Troubleshooting methods

It is possible to understand what to do if a SAMSUNG TV breaks down and after which it does not turn on, only after diagnostics. When a fault is detected, action can be taken. Depending on the situation, repair algorithms will be different.

No power supply

You need to look for the reasons why the current has disappeared correctly.

1. Check if there is electricity in the house or apartment. If your home is without power, it is worth checking whether the problem is local in nature. If the general building network is in order, but there is no current in the apartment, the culprit is most likely a tripped “breaker” or “traffic jams” - they are located in the distribution panel. It is enough to return the levers to the working position for everything to work. It is worth considering that the electrical safety system is triggered for a reason - you need to look for the cause of the overload or short circuit.
2. Check the outlet. These devices can also fail. If everything works when connected via an extension cord to another power source, the problem is in the outlet - it needs to be replaced, having first de-energized the object.
3. Check the power cable. It can fray, burst, or be damaged by the teeth of pets. It’s trite, but the wire can simply be disconnected from the outlet. If the plug is in contact with the power source, the integrity of the cable is normal, and the TV still does not turn on, the problem is clearly something else.

Power supply failure

Repairing or replacing the power supply requires dismantling the case, inside of which there are high-voltage parts, including those with a residual charge.

It is strictly forbidden to touch them with your hands or act in any other way without special training.

If the power system is blocked due to a power surge, characteristic clicks will be heard in the TV case. You won’t be able to solve the problem yourself - you need to contact a service center.

Also, the power supply may not work due to a swollen capacitor (in this case, when you try to turn on the TV, the TV will make a hum and whistle), or a burnt-out resistor . If you have some experience, you can unsolder them from the board yourself, buy new ones and install them. The faulty part is usually clearly visible to the naked eye.

The matrix or backlight has failed

This breakdown occurs even in new TVs. A burnt-out lamp or panel can be replaced in a workshop, but if the warranty period is still valid, it would be wiser to contact the seller to replace the defective equipment. If the manufacturer's fault is confirmed, the TV will be returned to the factory for recycling. Changing the matrix at your own expense is unreasonably expensive. Lamps can be replaced, but it is better not to do it yourself.

When the help of a specialist is not required

Very often, owners of television receivers panic and begin to call a technician at the slightest problem with their device. But if you calm down and look at the situation soberly, then there may not be a breakdown of the equipment. It is necessary to check the behavior of the television receiver based on some symptoms.

Mode check

You need to check what mode the TV is in. For example, Standby mode is a standby mode, and you can find out if it is turned on by looking at whether the red light on the unit panel is lit. It should be remembered that it is not recommended to leave the television receiver in this mode for a long period of time, since when the unit appears to be turned off, all circuits of the power supply remain energized. If a power surge occurs in the power supply network, all primary circuits will burn out, after which the television receiver will refuse to turn on. Therefore, the unit should be turned off using the button located on its panel to reduce the risk of electronic burnout.

Not working remote control

If you see an indication, but the TV does not respond to commands from the remote control, you can try to turn on the device using the control panel located on it. If you succeed, then the remote control is faulty. Although, in principle, it cannot break, except that a fall may break the quartz resonator, which will have to be replaced. Most often, the batteries in the remote control run out or run out. In any case, it’s worth disassembling the remote control and trying to fix the remote control malfunction with your own hands.

No standby indication

In a situation where there is no indication, and when you press the button nothing happens, you do not hear clicks and do not notice the blinking of the LED, then you can assume that the socket is faulty. Of course, you can try to connect the device to another power source, but if this does not help, then, without special knowledge and qualifications, you will not be able to repair the television receiver with your own hands. Even replacing a regular fuse will cause you difficulties, since they are not so easy to find in modern TVs. Therefore, calling a specialist will be the right decision.

The indicator blinked once

If the indicator blinks once, after which it continues to glow steadily, or its color changes, this may mean that the device is in operating mode: either AV or in PC connection mode. Therefore, you will need to switch the unit to TV reception mode.

Incorrect settings

Some specific TV functions may have been activated unintentionally. For example, child protection that blocks the activation of equipment without a remote control. It is worth carefully studying the settings to see if such functionality is running. An extreme case is to reset the settings to factory settings.

TV lock enable menu

Signal problems

Rain, heavy snow and other bad weather affect the quality of the broadcast signal. Ripples, artifacts, or noise appear on the screen. It is necessary to wait for the end of the bad weather, and if the situation has not changed, then check the antenna (plug, cable, housing).

Power surges

This problem is especially relevant in private homes. Strong surges can damage any household appliance. To avoid such troubles, it is worth acquiring special equipment - a voltage stabilizer.

Voltage regulator

Power button

If the equipment turns off almost immediately after switching on, then the problem may be in the button. Other symptoms of a malfunction of the latter are a loud click when activated and non-functional indication. You can replace the power button yourself; fortunately, many manufacturers have implemented this feature in their models.

Periodic reboot

This is a typical glitch in the platform. The problem can be resolved by updating the firmware to the latest version or completely reinstalling it.

Unidentified oily liquid

Having discovered that the TV remote control does not work and disassembled it, you can see a colorless oily liquid on the bottom of the keyboard. Do not rush to blame your relatives if one of them spilled sunflower oil or sweet tea on the device. This liquid is nothing more than oil secreted from the pores of the fingers. During operation of the remote control, it settles on the buttons, as a result of which contact between them and the pads is lost.

This problem can be solved very simply. It is enough to disassemble the remote control, wipe the board and the bottom of the keyboard with alcohol, and the device will work like new. Before starting use after this procedure, do not forget to dry the wiped elements.

Conclusion

It is quite possible to repair a Samsung TV with your own hands if it does not turn on. It is necessary to carry out diagnostics and identify what exactly the problem is. Be sure to exclude the following factors:

• lack of electricity;
• non-functional socket;
• burnt out power supply;
• power surges in the network;
• dead batteries on the remote control.

Next, move on to more complex manipulations and find out why the red light is blinking and the TV does not turn on.

Extraneous interference

If the batteries in the remote control are working, there is a signal, but the TV still doesn’t turn on or change channels, then the culprit is extraneous interference. This situation can occur if there is a bright light source next to the TV, which “clogs” the signal from the remote control.

Another reason could be a source of electromagnetic waves nearby. This phenomenon occurs if the TV is located next to a microwave oven.

To make sure that it is extraneous interference that is interfering with the reception of the signal from the remote control, you need to turn off all devices located near the TV and try to turn on the TV. If in this case there is no signal, the indicator on the TV does not blink, then you need to look for another source.

Check the remote control for integrity. If it is damaged, it needs to be replaced.

How to extend the life of your TV remote control

To keep your TV remote control working as long as possible, use the following tips:

1. Try to handle it carefully, avoiding dropping it on the floor.
2. Do not give the remote control to children and protect it from “encroachment” by pets.
3. Monitor the status of the LED.
4. Don't forget to change batteries on time.
5. Do not use the remote control when your hands are dirty or while eating.

Sources

• https://tv-vybor.ru/stati/446-televizor-ne-reagiruet-na-pult-upravlenija.html
• https://ProSmartTV.ru/tehnologii/ne-rabotaet-pult-ot-televizora.html
• https://lenbyt.ru/neispravnosti/pochemu-televizor-ne-reagiruet-na-pult-upravleniya/
• https://audiogeek.ru/ne-rabotayut-knopki-na-pulte-televizora/
• https://FB.ru/article/281818/ne-rabotaet-pult-ot-televizora-prichinyi-remont

Finding out the cause of the malfunction

In order to find out the reason why a Samsung TV does not turn on, you must first examine it externally. It may be possible to identify the problem without disassembling the hardware. You need to look for the problem using the following steps:

1. Make sure the outlet is working.
2. Check all cables. Avoid kinks, cuts, squeezing or abrasions.
3. Inspect the body of the TV panel; perhaps someone hit or dropped it.
4. Inspect the LED matrix to see if there are any dead pixels.
5. Is there a burning smell?
6. Open the back panel of the case and inspect all the boards and circuits. Make sure nothing burns or melts.
7. If the TV turns on, but does not respond well to commands, then reinstall the firmware or roll out an update.

If nothing can be identified, then contact a specialist, as special equipment and tools will be required to identify the problem.

There is one caveat. If the TV is under warranty, you cannot open it, because then the warranty service will automatically expire. Such a TV device will not be accepted at the service center for free repairs, and you will have to pay for it.

Checking the TV mode

You need to start identifying the problem small, since you will always have time to send it in for repair. If your TV won't turn on, you may have set it to standby and forgotten. Typically, if the TV panel is in standby mode, the activation of the mode will be indicated by a lit LED on the body. To turn on the TV device, you need to exit standby mode.

Experts advise not to leave the TV in this mode for a long time, because this negatively affects its performance. In particular, the power supply that remains energized is at risk. If there are frequent voltage drops in the network, the unit may burn out. Accordingly, the TV will not turn on.

Checking the remote control

If there is no picture and you don’t want to send it in for repairs, try checking the damage yourself. More likely, not even breakdowns, but small shortcomings, such as dead batteries in the remote control. Replace the batteries and turn on the TV device. If your Samsung TV does not turn on, check to see if the buttons on the remote control are stuck. If you cannot turn on the channel immediately, but after several attempts, then the infrared sensor may be damaged. This usually happens after the remote control is dropped or water gets on it. Try installing the application on your smartphone and controlling the TV panel from it.

Checking the sockets

If the TV device does not respond to the remote control and does not turn on even with the button on the case, then the next step that needs to be taken is to check the outlet. There may be no power or the socket is burnt out. Plug the TV receiver into another outlet that is sure to work. If you have protection against voltage surges and the network current is low, the device will not allow the TV to turn on.

A different source may have been selected

Samsung TV turns on, but the movie won't start? Most likely, you have selected the wrong signal source. If viewing is carried out via an HDMI or USB cable, select the appropriate item in the menu.

Possibly a voltage drop

Voltage surges most often occur in the private sector, or when someone works with welding in an apartment building. Some Samsung models are equipped with surge protection units. If a power surge occurs, the TV goes out and does not turn on for several minutes. If after 10 minutes the device still does not turn on, the following could happen:

• fuse is blown;
• the wiring is burnt out;
• Some electronic element inside the case has failed.

These problems can only be solved by sending the TV device to a service center, since even if you have discovered that something has burned out inside, you will not be able to cope without the appropriate knowledge and tools. If voltage surges are a common occurrence in your apartment, then install a voltage stabilizer and power all the household appliances you value through it.

The power button on the TV does not work

If the Samsung TV does not turn on even after pressing the button on the front panel and the indicator does not light, then the button itself may be faulty. Perhaps due to too much force it broke or began to stick over time. Modern premium Samsung TVs have a function to block the device from being turned on. Read the instructions carefully and check the status of this function.

Flashing indicator

An indicator on the front panel will help identify the problem. If it blinks regularly, then there is a failure in the system. In this case, detailed diagnostics will be required, which must be carried out using special equipment. You will need an oscilloscope to check the power adapter and converter located on the motherboard.

Sometimes the red light flashes and the TV does not turn on due to a voltage drop and the device locking function. Wait a while.

If the indicator does not blink but remains lit, it means that the standby function is enabled. If the indicator lights up green and then turns red again, this indicates that a signal to turn on was received, but the device was unable to implement it. The problem is with the transistor or inverter. To resolve this problem, you need to contact a service center.

Backlight fault

A backlight malfunction is indicated by the absence of an image and the indicator does not light up. If you shine a flashlight on the screen, the image will become visible. This indicates that the LED driver has failed or the LEDs have burned out. In this case, the TV must be disassembled, inspected and identified in which line the LEDs have burned out. This can only be done at a service center. If you do not have special knowledge, then it is better not to remove the cover of the device, because you can do much more damage than was before removal.

Firmware crashed (endless reboot)

A common malfunction of Samsung TVs, and especially Smart TVs, is faulty firmware. Either it starts to work incorrectly, or it crashes altogether. In this case, the TV panel does not respond to pressing the remote control buttons, although the indicator responds to the receipt of a command. Required:

• computer or laptop to reflash the chips;
• programmer series 25 SPI-Flash;
• programmer program;
• file with firmware for a specific model;
• a working SPI-Flash chip with sufficient memory.

If you do not have the necessary knowledge in this area, then it is better to trust a specialist.

How to clean the TV remote control

We remove the batteries and unscrew all the screws, if any. Often the screws can be hidden under some stickers, rubber feet or in the battery compartment. Next, we hook up all the plastic latches in a circle. We act carefully, without violent actions - they are easily disrupted.

After removing the back cover of the remote control and getting to the insides, we remove the board. It can be held on by screws. If you look at the board, you can see wet marks on its surface. We will wash them.

Under the board there is a keyboard rubber band, which can be divided into two. The elastic band is also smeared with some vagueness, so we will wash that too.

The principle of operation of these buttons is very simple - there are two closed contacts on the board. These black patterns are the contacts. If you look closely, they look like scallops moving into each other.

On the elastic band, on the inside of the buttons, there are closing circles. When pressed, these circles close contacts on the board with each other. This is how the remote control recognizes the press and then transmits the command to the TV. The button will spring solely due to its shape and the fact that it is made of rubber.

Essentially, these buttons are of an open design and, as a result, any dirt between the board contacts and the closing pad inevitably leads to poor operation.

When you need help from a telemaster

Everything that a non-specialist in television technology can do is limited to checking elements located outside the device. In other cases, it is not recommended to open the device with your own hands, and you cannot do it without a specialist.

The device did not turn on from the panel

If you can’t turn on the TV from the control panel, then you need to observe the behavior of the standby indicator (normally it lights up with a steady light, more often it’s red). If it turns off when you try to press a button, then the problem should be looked deeper into the device, as this indicates that the internal lock has been activated (not to be confused with the child lock mode, which is activated by the user). This happens when one of the modules fails. In some TV models, you can hear a clicking sound when the lock is activated. You will not be able to fix such a breakdown yourself. The only reasonable solution is to call a specialist.

Power button on the Samsung TV panel

The indicator turns green and then turns red again

This color switching indicates that the CPU generated a signal to turn on the device, and it was sent to all modules for its execution. If any module fails, it cannot execute the command. For example, a failure in the power supply prevents it from entering the desired mode. In this case, the processor, without receiving confirmation from the power supply about normal operation, sends a signal to cancel turning on the television receiver and returns it to sleep mode.

This blinking can continue for a long time until the main cause of the failure is removed: the inverter has been repaired, the transistor has been replaced (for example, on the s62 chassis), the power supply has been rebuilt, or another of a large number of reasons.

The indicator turns green and nothing happens

When the indicator lights up green, but the TV receiver does not even think about turning on, then this situation can be called ambiguous. It is necessary to check the main board by measuring the voltage supplied to it. A study of commands for launching, lighting, etc. is also being carried out.

If the light turns on, signaling the operating condition, but there are no signals from the main board, and the device does not respond to the remote control or pressing buttons on the case, this may indicate a software failure. Only flashing and updating the software can restore normal operation of the motherboard.

The indicator flashes randomly

This behavior of the indicator indicates that a failure has occurred in the TV, and it no longer carries any useful information. A complete diagnostic of the electronics will be required, starting with the “ringing” of the power supply and ending with the converters located on the system board.

TV takes a long time to turn on

When it takes a long time to turn on the television receiver, this indicates that some unit of the unit has failed. For TVs with picture tubes and LCD panels, the factors causing breakdowns can be very different. It is quite difficult to identify a malfunction without the necessary experience and knowledge. Since the problematic unit still starts to work, only a qualified technician can get to the bottom of the cause of the failure, using special equipment to carry out the necessary measurements. In some cases, it will be necessary to check the device at a service center at a stand using special software.

As can be seen from the above possible reasons why the TV stopped turning on, there are not many options left for repairing it on your own. This rule also applies to the case when the TV turns on and turns off immediately. And since the unit is a complex electronic device, it requires careful operation and timely maintenance.

Diagnosing a TV malfunction

If the equipment does not turn on or does not behave as it should, it makes sense to try to find out the cause of the breakdown on your own without involving service center specialists. The latter will have to pay a lot of money, while a small problem can be eliminated on their own.

Important! If the TV is under warranty, then repairing it yourself is out of the question. Opening the case, breaking factory seals and other actions automatically deprive the consumer of all service privileges.

Network cable and socket

First of all, you need to check the condition of the network cable and socket. The first is visually inspected for physical damage. You can check the socket by connecting another household appliance to it, for example, a lamp.

Hull inspection

Manufacturers, in pursuit of lightness and refinement of design, turn a blind eye to body protection. Some models are so fragile that the outer plastic crumbles when pressed hard. It is necessary to carefully inspect the case for chips, indentations and other mechanical damage.

Display

Particular attention should be paid to the screen: even microcracks barely visible to the eye can affect the quality of the picture. This also includes dead pixels. To diagnose the latter, the firmware provides special tests that detect dark or light spots on the screen.

The dead pixel test looks like monochromatic pictures of different colors

Specific smell

Power surges are one of the most common causes of failure of TV equipment. In this case, boards and individual elements may burn out and emit a specific odor. You can catch it by sniffing the back wall of the TV.

Control board inspection

If the warranty period has already expired, and a visual inspection of the external part of the equipment has not yielded any results, then you can try to open the case and look for problems on the main board. It is worth paying attention to contacts, wires and groups of microcircuits: breakage, thermal effects, excess moisture or corrosion.

Operating system diagnostics

Problems can be not only in hardware, but also in software. It happens that the firmware starts to fail and become glitchy in every possible way. This, for example, may manifest itself in a noticeable delay between switching channels or independently performing some actions without user participation.

Software update menu on Samsung TV

The only solution is to install new firmware. If the TV is connected to the network, then the current update can be received “over the air” by looking at the corresponding settings section. In other cases, you will have to copy the firmware to a flash drive and install it manually.