There are two TV remotes. The first is located on the front panel. They rarely use it. Since it is very inconvenient to get up and go to the TV every time to change the volume or change the channel. A remote control or remote control is a more practical way. It is included in the basic package. Now we will determine why the TV remote control does not work, and also consider the specifics of recovery.
You need to start with diagnostics. To determine the possible causes of a broken remote control, you need to use the elimination method. First you need to check the health of the TV. If the channels do not switch even from the panel, then the reason is precisely in it. It is impossible to fix TV hardware breakdowns without professional equipment. Therefore, in such situations, it is wiser to contact the service center.
Why does the remote control not work? There are several reasons: mechanical damage, moisture ingress, excessive dust on microcircuits. To repair it with your own hands, you need to be well versed in electronics, have a soldering iron at your disposal and be able to use it. The main symptoms of a remote control breakdown:
- there is no response, that is, the user clicks on the button, but nothing happens;
- some commands are not executed due to damaged buttons.
Now we will consider the most common causes of a malfunction of the remote control, and also consider how you can restore it.
Batteries are low
This breakdown 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 if there is no dedicated tester or multimeter? It is extremely easy to determine that the reason for the malfunction of the remote control is the batteries. We act by the method of elimination. All buttons are pressed, but the remote control does not work. Previously, he did not fall and liquid did not get on him.
Be careful when replacing batteries, you must not confuse "+" and "-". The positive lead visually resembles a spiral, while the negative lead is elongated. If replacing the batteries did not solve the problem, then the diagnosis should be continued.
Ingress of moisture and dirt
What to do if the buttons on the remote control do not work? The channels are switched only after a few keystrokes or there is no response at all. It is possible that the sticky button effect was caused by excessive dirt on the remote control. Similar problems also arise when the user spills water, tea, or any other liquid on the remote control.
The liquid penetrates into the interior of 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 don't know how to fix Sticky Keys. Therefore, with all their might, they begin to put pressure on the remote control. This is the wrong decision, which causes the buttons to break.
In order not to aggravate the malfunction, you need to disassemble the remote control. If you find a sticky layer on the elastic band or dirty contacts, then proceed according to the following algorithm:
- Use a lint-free cloth dampened with alcohol to remove stains. Do not use cotton pads as they will leave fluff.
- If a sticky spot has formed on top, then the gum can be wiped off with the most common ear stick. Pre-moisten it with alcohol.
- Sticky deposits remain on the case and must be removed as well.
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.
Poor quality remote controls (non-genuine) react poorly to alcohol and cleaning agents containing this substance. To prevent further damage, dilute the detergent with water.
When all components are cleaned, you need to leave them disassembled for about 24 hours. They need to dry out. Be sure to clean the battery contacts. Some people use sandpaper for this, but this must be done extremely carefully.
Impact cracks
Mechanical damage can provoke several types of remote control malfunctions:
- the connecting contact with the board is broken;
- the board cracked.
To understand why the remote control does not work after a fall, you need to disassemble the device. This should be done as carefully as possible. Follow the step-by-step instructions:
- Remove the back cover and then remove the battery.
- You need to stick a knife, screwdriver or other sharp object between the halves of the remote control.
- Turn the knife or screwdriver slightly so that there is a gap between the halves of the remote control. You will hear a click, which indicates that the latch has opened.
- Continue to slide the device apart to release the other fasteners.
The microcircuits are interconnected by thin stubs. Check if one of the boards has disconnected due to the impact of the remote control on a hard surface. To prevent the hardware elements from moving, they need to be soldered. What to do if the remote control stops working due to a broken board? The component can be repaired.
Solder the dangling tracks with thin wires. They must have appropriate counter elements. Otherwise, a short circuit may occur. In cases where a crack has appeared under the resistive layer, the remote control cannot be repaired. 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 has been erased. Even in such a situation, you can repair the remote control yourself. If, nevertheless, the conductive spraying has worn off, then you yourself will not be able to apply it. However, the problem can be solved in other ways:
- Purchase a dedicated remote control kit. It includes round contacts designed for home repairs. Glue the contacts where you want.
- If the kit you need is not on sale, then instead of contacts, you can use the most ordinary foil. It is necessary to stick it on the place where the conductive layer was located.
- Assemble the remote control and test its functionality. Press the channel switch or volume control button.
TV malfunction
The signal from the remote control to the TV is transmitted using a special infrared sensor. It is possible that the lack of response when pressing the buttons on the remote control is due to the breakdown of the TV. How do you know if the TV is broken? Try to switch channels with another remote control, if there is a response, then you need to buy a new one. However, if there is still no reaction, be sure to contact the service center.
If the model you are using supports Smart TV, then you can create an alternative remote control. Download a dedicated application to your smartphone. The program will allow you to use your mobile phone to change channels, adjust the volume and activate other functions.
Practice shows that users cannot repair complex faults on their own. For example, re-soldering the board. Therefore, if you do not have special skills, it is wiser to seek help from specialists so as not to aggravate the breakdown.
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