Why does the remote control not respond to the TV, how can I quickly check the device and fix the problem on my own?

Despite the technological perfection of modern TVs, even they are susceptible to various breakdowns from time to time. Equipment from leading brands can also fail and cause trouble for their owners. Some of them you can handle on your own. The appearance of a flashing light can indicate both minor and serious breakdowns. To understand the situation in detail, let's look at the possible causes of such breakdowns.

Common problems with TV remote control

Information about using the remote control can be found in the technical documentation for the TV from the equipment manufacturer or in the online user guide on the corporate page.
To do this, you can enter your TV model number on the website, go to the “Manuals and Specifications” section and find the “remote control” section. In working condition, when you press a command on the remote control, the selected mode button at the top of the remote control should flash red. If this does not happen, you need to analyze the behavior of the TV and remote control.

Standard problems with the remote control of Dexp TVs when they cannot be turned on or off:

1. The LED does not blink.
2. The visible red light flashes several times.
3. Channels do not change or change slowly.
4. Problems with volume control.

To determine which of these conditions is causing the problem, follow these steps:

• Open the battery compartment on the back of the remote control and remove both batteries.
• Press and hold any button on the remote control for 20 seconds.
• Release the button and insert the batteries correctly.
• If the remote control responds, then there was a malfunction in it, which disappeared when turned on, when a reset occurred when discharged in the previous step.
• If the remote control does not work and the TV cannot turn off, continue research further.

Most TV remote controls rely on an infrared signal that is transmitted over a distance and the TV picks it up. If the signal is blocked, you will need to check the area between the user and the TV to see if the infrared radiation is being blocked by anything, such as furniture, books or DVDs stacked directly in front of the TV.

The distance between the remote control and the TV also plays an important role. If the remote control does not work, you need to get close to the TV and check its operation. To do this, hold the remote control at a distance of about half a meter from the TV and press the power button. You can read the receiver's instruction manual to see how far apart the remote control and receiver can be. If the device aimed at the center of the TV does not turn it on, point it at each corner of the screen. If there is no progress, move on to checking the batteries. Weak batteries can also affect signal strength.

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Basic faults

You need to start with diagnostics. To determine the possible causes of a remote control failure, you need to use the elimination method. First you need to check if the TV is working properly. If the channels do not switch even from the panel, then this is the reason. It is impossible to fix TV hardware failures without professional equipment. Therefore, in such situations, it is wiser to contact a service center.

Why doesn't the remote control work? There are several reasons: mechanical damage, moisture, excessive dust on the chips. To repair it yourself, you need to be well versed in electronics, have a soldering iron at your disposal and know how to use it. The main symptoms of a remote control failure:

• there is no response, that is, the user presses the button, but nothing happens;
• Some commands are not executed due to damaged buttons.

Now let's look at the most common causes of remote control malfunction, and also look at how you can restore it.

The batteries are low

This failure of the TV remote control can be easily detected using a tester, multimeter or voltmeter. Check power supplies. The minimum value should be 1.3 V. If lower values ​​were obtained, then you need to purchase new batteries.

What to do if there is no special tester or multimeter? It is extremely easy to determine that the batteries are the cause of the remote control malfunction. We use the method of elimination. All buttons are pressed, but the remote control does not work. It did not fall before and no liquid got on it.

Be careful when replacing batteries, you should not confuse “+” and “-”. The positive terminal visually resembles a spiral, while the negative terminal has an elongated shape. If replacing the batteries does not solve the problem, then you should continue the diagnosis.

Incorrect source selected

The main reason why the display stops working may be the standby mode, which does not turn off the device. In this case, the TV works, but its operation does not appear in any way. This problem can be easily resolved by using the remote control and switching the mode by pressing the “Standby” key.

This option does not block the power adapter and leaves the screen always in a ready state.

Attention! Constantly keeping the monitor in a ready state has a negative impact on its performance. As a result of abuse of this condition, the device becomes very vulnerable to voltage surges.

Another reason why the TV is silent and does not turn on is an incorrectly selected source. If the user previously activated AV or HDMI, then in order to watch TV broadcasts, you need to switch the source using the remote control. This often occurs after connecting the TV to a laptop.

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.

Power light flashes

Important! If the LED indicator blinks, this means that the device is trying to determine the type of malfunction. In most cases, the light is red and can blink a certain number of times - in this way it conveys a symbol of a breakdown.

To decipher the signal, you just need to read the instructions included in the basic package. It is recommended to find a section where all types of breakdowns are described and find the reasons why the light may blink. Having the information received, you can independently normalize the launch of TV by taking appropriate measures.

But there may be another reason for this state of the device - the device is connected to computer equipment and is used as a monitor. When the computer switched to sleep mode or turned off automatically, when you try to turn it on from the remote control, you will see that the indicator is on.

This problem can be solved simply, you just need to wake up the device from sleep mode by pressing any button on the computer keyboard or twitching the mouse.

The TV device is working, just connected to another image source.

The case cannot be ruled out. that the protection has been triggered, as a result of which the LG TV cannot turn on, and the indicator blinks. The reason for this is either device failure or software failures. It is possible that the device was simply not taken out of sleep mode.

Cracks due to impacts

Mechanical damage can cause several types of remote control malfunctions:

• the connecting contact with the board is broken;
• board cracked.

To understand why the remote control does not work after a fall, you need to disassemble the device. This must be done as carefully as possible. Follow the step-by-step instructions:

1. Remove the back cover and then remove the battery.
2. You need to insert a knife, screwdriver or other sharp object between the halves of the remote control.
3. Turn the knife or screwdriver a little so that a gap appears between the halves of the remote control. You will hear a click, indicating that the latch has opened.
4. Continue to push the device apart, thereby releasing other fasteners.

The microcircuits are connected to each other using thin cables. Check to see if one of the boards has turned off due to the remote control hitting a hard surface. To prevent hardware elements from moving, they need to be soldered. What to do if the remote control stops working due to a board failure? The component can be repaired.

Solder the broken traces with thin wires. They must have appropriate response elements. Otherwise, a short circuit may occur. In cases where a crack appears under the resistive layer, the remote control cannot be restored. Therefore, you will have to buy a new device.

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.

TV malfunctions

If you checked the remote control and it works, then the problem is located directly in the television receiver:

• Photodetector defect.
• The processor is faulty.

These are complex cases and it is impossible to fix them on your own. You will need to replace some parts or update the TV software or re-flash its processor.

Lenbyt masters will successfully cope with all these tasks.

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No signal frequency matches

Typically, users of a universal remote control may encounter this situation. In this case, the LED on the TV blinks, creating the appearance that the signal has been received, but in fact the panel is not turned on by the remote control. What to do in this case? Try to find a similar model of someone you know and test the device on it. If this is not possible, then you can check the functionality of the device in the store. And if it turns out that its frequency settings have gone wrong, then you need to contact the service center so that the technician can eliminate the defect.

LG TV does not turn on, indicator blinks red

LG TVs stand out for their advanced matrices and high functionality. It is not surprising that most users purchase products from this brand. But sometimes there are complaints that the LG TV does not turn on and the light is red. This problem can be caused by various breakdowns. In the future, we will consider all of them, note which ones can be eliminated on your own, and in which situations you cannot do without the help of a specialist.

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.

Voltage drop

If the LV is completely extinguished, this does not always mean that the equipment is broken. Often the TV does not turn on if there are problems with the electrical network at home or the common antenna.

Then you should act according to the scheme.

Another reason that an old model LV does not turn on may be a blown fuse.

When the light is on in the usual color (red, green, blue), then the TV may not be communicating with the TV signal source. In this case, you need to start the monitor’s standby mode and try to open any media file from a smartphone or flash drive connected via USB or HDMI on the large display. This way you can make sure whether Smart-TV is working or not.

How can I fix the situation?

If the TV remote control does not work, then you can find several solutions to this problem:

• Repair the faulty remote control.
• Buy a new remote control.
• Download a special application on your smartphone that will allow you to use your phone as a remote control. This is not a full replacement of the remote control, but this option can be used during repairs or before purchasing a new remote control.
• High-quality TV repair in a service center. If the remote control is not to blame for the fact that the TV does not respond to it, then you need to call a professional technician. Service specialists will repair your TV at home at a convenient time. We repair LCD, plasma, picture tube, and old black and white models.

The power indicator is no longer lit

It happens that the device cannot turn on at all, the light does not light, the TV does not respond to the remote control and the buttons located on the front panel of the device. It is likely that the electricity has disappeared.

Important! It may happen that the indicator burns out, but then the TV should still turn on.

Based on the facts that the light does not light and the TV does not turn on, we conclude that there is a problem with the electricity supply.

Power failure occurs in several situations:

The first thing to do first is to check if the outlet and extension cord are working properly. It is also necessary to look at the shield and change the position of the toggle switches.

If the previous action did not help, you should then look for the cause of the problem in a broken socket. To do this, it is recommended to simply plug the plug from the TV into another outlet.

When it doesn’t work, there is no electricity. To fix a wiring problem, you will need to call an electrician.

When the model of the TV device is a picture tube, the cause of its breakdown is a blown fuse. A blown fuse can be replaced with a new one.

Most often, the reason for the inability to turn on a TV device is a breakdown of the TV device of more modern models (for example, a breakdown of the microcircuit, power adapter or capacitor).

All equipment as a whole should be diagnosed. Once you have identified a part that is not working correctly, you should simply replace it. After replacing the broken part, the TV device should, in theory, turn on.

The buttons on the remote don't work at all

If the problem is not the batteries, then you should check the buttons, namely, press everything. If the TV does not respond at all to pressing buttons, then the situation is bad and there are 2 options: either the remote control is completely out of order or the problem is in the TV receiver.

The development and reduction in cost of technology today has led to the fact that in the vast majority of cases, it is cheaper to buy a new remote control than to repair and tinker with an old remote control. But if buying a new remote control does not solve the problem with controlling the TV and it does not respond to any of the buttons, then the problem is in the TV itself.

Ways to solve the problem yourself

If some malfunctions occur in an LCD TV or CRT television receiver, the owner of the equipment can find them independently and solve the problem on his own. Such malfunctions include: problems with the remote control or socket, voltage drops, lack of access, etc.

Check access

Parents often install “child lock” on their TV. This blocks access to the device - a block is created by the TV receiver control. In this case, the button located on the device body or some channels may be blocked. To check for lack of access, you must try to turn on the TV using the remote control.

When you receive a request to enter an unlock code, you can find the required password in the user manual. If you changed the password but forgot it, you need to reset all the settings you made, restoring them to factory defaults.

You also need to check whether the device is operating in standby mode (the red light is on). To restore operation, you must disable this mode. Leaving the TV in it for a long time can cause damage.

Check remote control

If the device does not respond to pressing buttons on the remote control (the indication is still visible), try turning on the TV using the control panel located on the device. If all else fails, the remote control is broken. Breakage can occur when dropped - the quartz resonator breaks - in this case, the part will have to be replaced. In most cases, the batteries in the remote control run out or run out. To fix the problem, you will have to disassemble the remote control and try to fix it yourself or change the batteries.

Checking the outlet

When the indicator does not work and Samsung does not turn on using the remote control and the key located on the control panel, you should make sure that the outlet is working. Perhaps the device is not functioning just because it is broken.

Before repairing the outlet, you need to make sure that this is the problem. To do this, find a working power source and connect the TV to it.

If the device still functions when connected to another outlet, the outlet will have to be repaired.

Another source selected

If the image is not viewable when you turn on the TV, it is worth checking whether the correct signal source is selected. There may be an HDMI cable connected to the device and that is why the desired signal is not available. To return it, you will have to disconnect the wire and set up the connection to the antenna; to do this, you need to find the “Source” section in the menu.

You can turn on the TV on the last source; to do this, do not use the standard power button on the remote control, but press the “Power” button. At the same time, if the TV was turned off in TV mode, it will turn on in the same mode.

Voltage drop

Some models are equipped with surge protection; this system helps turn off the TV for a few minutes after a power surge and delays the startup of the electrical appliance. If the TV does not turn on 10 minutes after automatic shutdown, one of the electronic components in the electrical appliance has burned out.

A device that is constantly in standby mode ("Standby"), part of the electronics is constantly supplied with electricity. The electronic components of the TV are especially sensitive to power surges.

That is why, if a voltage drop occurs in standby mode:

• The power supply may burn out. Replacing this part of the TV is quite expensive.
• The electronic board responsible for controlling the device will break.
• The fuse will blow.
• Any other electronic part of the TV will fail.

To avoid all of the above situations, you should connect the TV to the network through a stabilizer or surge protector.

The buttons on the remote don't work - some are bad

If the buttons on your remote control do not work, but not all of them, but only some, or you have to apply a lot of force to operate them, then most likely the problem lies in dirt that has gotten inside the remote control. In this case, you should disassemble and wash the remote control.

The most common cause of a non-functioning remote control is spilled sweet tea, coffee or soda. Sugar dissolved in drinks forms a sticky film on surfaces that prevents buttons from being pressed, acting as an insulator.

Why does the LG TV not turn on and the light is on?

LG is one of the popular TVs, but the brand and price do not always save the user of the device from breakdowns and malfunctions. There are many reasons why a TV may fail, but there is no need to panic. The first thing you need to do if a breakdown occurs is to establish its cause. In order not to ask a specialist for help, you can look for the problem yourself. Anyone can diagnose a TV - you just need to know in what cases the LG TV does not turn on, when the backlight of the LG TV does not work. The following recommendations may help you resolve the problem.

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.

Common errors on TVs and how to fix them

There are still many errors that applications generate, due to which they can appear on any TV, regardless of the manufacturer. We have included them in a separate list for ease of analysis.

How to fix errors on TVs:

The entire list of error codes on TVs is simply immense, so we had to highlight the most common ones and make a brief excursion through them. If you didn't find the answer, couldn't figure out how to implement the advice, or encountered another error, ask questions in the comments.

How to wash the remote control

Having disassembled the remote control, we separate all the plastic and rubber parts and go to the bathroom, where we thoroughly rub the remote control body with a soapy brush, after which we thoroughly rinse off any remaining soap.

Rubber bands should be treated more gently. The part of which they close the contacts of the board is a conductive material applied to a rubber base. Do not scrub them with a brush. It is better to gently rub with soapy hands or simply rinse under warm water.

We send the washed parts of the remote control to dry on your favorite towel. It is advisable that the towel be clean. You can wipe it off, but again, do not rub the conductive areas on the elastic bands.

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.

Will film help?

You've probably seen remote control devices wrapped in plastic film. This method was undoubtedly invented by our compatriots in order to protect the remote control from the possible consequences of careless handling. Yes, the film can temporarily protect the device from moisture and dust. But over time, it loses its protective properties due to the same intensive use. Whether it’s worth turning the remote control into an incomprehensible and funny object is up to you to decide.

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