Repair remotes for TV

We do not notice how important this thing is until it breaks. Yes, we are talking about him - about the remote control. But do not panic: repairing remotes for a TV is not the most difficult thing, you can do it yourself. In this article we will analyze all the possible causes of its malfunction and step by step we will describe how to fix it in case of a particular problem.

to contents ↑

What could be the malfunctions?

There are several common reasons for malfunctions, in which panic is not needed at all, and you should not run behind the new D / C either.

Reason 1

The most prevalent is the defect, in which the terminals are poorly in contact with the power source. Since an alloy is used for their production, which is not quite suitable for such a device, the terminals bend easily and become less elastic during operation.

To eliminate their springiness, it is possible to make a gasket of non-rigid rubber between the terminals and the end of the board, due to which the contacts with the battery are reliably connected.

Important! For the manufacture of such pads, you can use the usual stationery eraser.

Reason 2

Also a common phenomenon - the contact of graphite printed circuit board elements and conductive rubber, which is pressed by the control buttons, is deteriorated.

The cause may be the ingress of fat between them or a decrease in the quality of rubber, since after a couple of years of operation an oily substance is released from it.

Reason 3

A common problem is the shutdown of the most common buttons. They can work, but only with great effort. The reason for this is the wear of the conductive coating of the contacts of the rubber base. Physical wear of the rubber contacts under the buttons occurs, as a result, the conductivity is lost.

to contents ↑

How to repair?

A viscous liquid may appear on the circuit board, using a dry, soft cloth to remove it. A soft stationery pencil is used to restore graphite contacts.

Important! Do not use alcohol, cologne or solvent to wipe the graphite contacts. Substances with alcohol in the composition lead to the destruction of graphite.

After repairing the board, you need to check its performance:

1. Putting the remote into the case.
2. We install the power source, but do not stack the rubber pad with buttons.
3. We make a small pointer out of foil.
4. Through the holes for the buttons we touch the graphite contacts.

to contents ↑

The remote does not respond to button presses

The situation when nothing happens when you press the buttons on the remote control is quite common. That is, there is no channel switching and sound change.

There are only two reasons:

• The batteries are low;
• The remote control has crashed more than once.

In the first case, everything is very simple - we change the batteries. Even a child can do it.

After the console falls to the floor, there is a disruption in the joints at the soldering sites. Checking if the device is working is quite simple:

1. Turn on the camera on your mobile phone.
2. We direct the remote control to the camera and press any button;
3. If a signal is transmitted, a luminous thick dot appears on the phone screen.

In its absence, you will need to disassemble the console, inspect the board and carry out a full repair.

Important! When disassembling the device, care must be taken to prevent scratches and chips on the case.

A magnifying glass is used to inspect the board for malfunctions. During the repair you will need skills to work with a soldering iron.

Important! The most common problems are disconnecting the LED, battery pads, or damaging the quartz crystal.

To determine that a quartz resonator is damaged is quite simple: the remote is shaken slightly. If rustling is heard, a crack has appeared in the cavity and its replacement is required.

Important! When buying a TV, be sure to consider the layout of your room so that when viewing you can see the image from the desired point in the room. A special review will help you choose the right TV viewing angle.

to contents ↑

When pressed, some buttons work

This problem occurs when oil condensate forms. Repairing the D / U of the Samsung TV or another model in this case is very simple:

1. The console is disassembled.
2. The board is wiped to remove plaque.
3. Wipe the key pads.

Important! When wiping do not need to be too zealous, as contacts may be damaged.

How to wipe?

• Sometimes alcohol is used for such purposes, but if you do not want to take risks, you can replace it with a soap solution.
• If the spring contact is very dirty, use sandpaper or a hard sponge.

After all spare parts have dried, they are collected back. So the problem is simply solved when the remote control from the TV does not work.

to contents ↑

The most popular buttons have no reaction

Frequent use erases some buttons, or rather, conductive spraying. You can easily do this with your own hands:

1. The remote control opens, the rubber part goes.
2. A thin foil is glued to the back of the buttons. For this, silicone glue or “Moment” is used.

Important! You can use special kits, which include glue and buttons with spraying.

Important! The duration of operation of the equipment is negatively affected by power surges. To avoid costly repairs, use voltage stabilizers or network filters.

to contents ↑

We clean and wash the remote

We figured out how to repair the remote control from the TV with our own hands, but in order for it to last longer, we need to take care of it:

• Consoles packed in a bag made of polyethylene are rare. That is why the rubber base is covered with dust and fat over time. Because of this, the performance deteriorates, and later the destruction of the push-button contacts. All this dirt must be disposed of.

Important! Contacts can be graphite coated or tinned. Accordingly, the color can be black or metallic - copper. Contacts of black color do not need to be dragged too much, because if copper tracks appear on them, they will be damaged.

• With a small amount of dirt, you can limit yourself to local cleaning. A cotton swab dipped in alcohol is used to remove dirt. Using acetone or other aggressive solvents is not worth it. When washing away plaque from a rubber base, the actions must be careful to avoid damage to the conductive coating.
• With extensive contamination, an old toothbrush and soap solution are used to clean the circuit board and rubber base. After the procedure, the foam is thoroughly washed off, and the board with the base is dried.

Important! Do not forget about the proper care of the TV screen. Never wipe it with a wet rag, use special cleaning products.

It is not enough to know how to fix the remote control from the TV at home, you need to be able to do preventive maintenance:

• Periodically checking the battery compartment is required. The contacts in it should not be arched or oxidized.In the presence of oxides, they are cleaned to a shine with a knife or screwdriver.
• Also, the places where the radio components are soldered, especially the battery contacts and the IR diode, are periodically checked. Here, the formation of ring cracks is possible.

to contents ↑

Stock footage

As you can see, there is nothing complicated in the care and repair of the D / U console. Almost any breakdown can be repaired in a short time with your own hands. If the remote control is very old and you see no reason to repair it, you can always buy a new universal device.