How to fix a button on an acer laptop keyboard. Is it possible to fix a key on a laptop? Installing a flying button

In this article we will look at the problems that occur with keyboards, their repair and restoration - the complete and best this moment In RuNet there is a service manual. The focus is on repairing and restoring laptop keyboards, but everything described below can easily be applied to desktop keyboards.

Everyone knows that in any electronic device As a rule, mechanical parts fail. Laptops are no exception - despite the fact that manufacturers around the world are constantly working to improve their reliability (and, consequently, service life), due to the small size of these devices, it is not possible to exclude the influence of various factors leading to the inoperability of certain devices. nodes

One of these risk areas for laptops is the keyboard. The unfortunate keys are subject to unbearable stress every day. Every day, the keyboard is exposed not only to mechanical stress (impacts on the keys during operation), but also dust, crumbs, and dog and cat hair. And under the most unfavorable circumstances, it turns out to be flooded with various kinds of liquids. Naturally, all this makes the life of a laptop keyboard extremely short.

Prevention

Here are the main symptoms indicating that your laptop keyboard is faulty:

• the keyboard has changed its color
• I started typing poorly, some keys don't work
• after pressing the spacebar or any other key, this key does not return back

In a number of these problems, you can only get by with preventative work, but this is best done in a specialized service center. There is everything for this necessary tools, liquids and experience, because inappropriate preventative actions can only worsen the current situation and often make the keyboard beyond repair.

The vast majority of laptops use a membrane keyboard. Conductors and contact pads are applied to the polymer film using vacuum deposition or chemical deposition. To increase mechanical strength, the contact pads can additionally be coated with a graphitized layer. Unfortunately, each manufacturer of laptop computers develops its own original topography for the layout of the film keyboard and replacing it from one model to another is impossible.

The main cause of a malfunction in the keyboard is the ingress of various liquids (Coca-Cola and Champagne are the most caustic), resulting in short-circuiting, oxidation or corroding of the conductive paths printed on the films. Cases of broken cable conductors and its breakage during independent attempts to disassemble the computer are still common. Almost any flooded keyboard can be repaired by restoring the damaged tracks with conductive glue.

How is prevention carried out?

First, you need to remove the keyboard. In principle, this procedure cannot be called too complicated. As a rule, to remove the keyboard, the clamps at the top of the keyboard are bent or pressed with a flat screwdriver, after which the top part is lifted, pulled up and away from itself, coming out of the lower grooves. The most important thing is to disconnect the flexible cable from the connector motherboard, it is very easy to damage a thin cable, but restoring it is quite problematic. As a rule, the keyboard is connected to a flat connector, which consists of a fixed part into which the cable is installed, and a lock-seal plate.

Only after removing the keyboard can you determine the scale of the disaster, and understand whether it can be done simply with preventative measures or whether you will have to carry out repairs, and in the most unfavorable situation, install a new keyboard.

In the case of preventive maintenance, dirt and dust between the keys are first removed. There are special brushes for this, as well as cans of compressed air. Then you can start wiping the keys themselves and giving them their original shine. For this, there are special aerosols and liquids that remove dirt and add shine to plastic without damaging it.

Often crumbs, sugar granules, and food can be found under sticky flasks. It is better to try to remove them with a brush while simultaneously sucking them out with a vacuum cleaner.

Repair

Here are a number of typical cases when ordinary preventative maintenance will no longer help and more complex repairs are required.

1. Keys “stick” or are difficult to press

In the case when individual keys “stick” or are poorly pressed, unfortunately, simple prevention is not enough. Such defects occur when moisture gets into the mechanism, which over time mixes with dust and “cements” the moving part of the keyboard. To get rid of dirt, poorly functioning keys are dismantled.

After this, the mechanism is washed in a warm solution of a special cleaning agent. In some cases, it turns out that the silicone “blap” has worn through to holes; it is replaced with another one.

2. Spilled liquid on the laptop keyboard

Perhaps the biggest nuisance that can happen is liquid spilled on a laptop. If this happens, then under no circumstances place the computer on the battery to dry, as this will not help. First, unplug network adapter and remove the battery, i.e. completely disconnect the device. And then, as quickly as possible, deliver the laptop to a specialized service center. If you are lucky and the liquid does not have time to corrode everything inside, you will get away with second-level preventive work (more serious). Otherwise, you risk having to replace or restore the keyboard, and sometimes even repair work motherboard laptop.

To carry out the second level of prevention, it is necessary to dismantle the keyboard, rinse and dry thoroughly. Next, the film base is carefully removed from the keyboard; as a rule, it consists of several layers of film, onto which very thin current-carrying tracks are applied. It is important to note that when separating one film from another, you cannot tear it, since this will almost certainly tear the sputtered signal tracks. Each film must be washed in cold water and dried thoroughly. This procedure requires not only a lot of time, but also a lot of experience, because... The tracks are very thin and can easily be washed away during the process of working with films. Only after final drying can one assess how badly damaged the current-carrying paths are. If the tracks darkened and gaps appeared in them , then you can try to restore them with a special conductive varnish.

Unfortunately, after carrying out these steps, the keyboard is not always in working condition; this is due both to the composition of the liquids that were poured onto the keyboard and to how quickly the laptop arrived at the service center. If the second level of preventative work does not help, there is only one thing left - replacing the keyboard with a new one.

3. Broken or lost keys

Another problem that laptop owners face is broken or lost keys. In some cases, you can use a “donor” to fix this breakdown. Unfortunately, using “donor” keys is not always possible. This is also due to the fact that keys are broken in different ways, for example, if the mount itself is broken, then nothing can be done except change the keyboard for a new one. It’s the same with the fact that all laptops are different and finding a “donor” with an absolutely identical keyboard is extremely problematic. But meanwhile, such a possibility always remains.

If the “donor” could not be found, or its use is not possible, then there is only one thing left - replacing the keyboard with a new one.

Keyboard recovery

The vast majority of keyboards are made using film technology. Two films on which contact pads and connecting conductors are applied by vacuum deposition. Between them, an insulating gasket is made from the same thin film with holes in the places where the contact pads are located. Under the keys there are rubber washers, which, when you press the button, compress the film sandwich and create electrical contact between certain contact pads. The conductive paths on the films are made of aluminum. When moisture gets in, aluminum oxidizes very quickly and the track breaks. In this case, both individual keys and entire groups of buttons stop working.

If the keyboard is flooded, you must first turn off the computer, disconnect the power and remove the battery. Then we wash the keyboard with cool water (not alcohol!), dry it, put it back and check. When washing, thin films of a flexible printed circuit board should not be rubbed - the conductive traces can easily be completely erased! Drying the keyboard should last at least a day. If, nevertheless, the keyboard partially or completely does not work, you will have to disassemble it and re-draw the rotten tracks. To work, we need conductive paint, glue or varnish. You don’t have to look for this liquid in specialized stores; its analogue for repairing rear window heating filaments can be bought at an auto parts store.

Most modern keyboards can be disassembled starting with the keys. The first step is to make a photocopy or photograph of the keyboard. Herself the key most often consists of two parts: the elevator and the platform keys, but on some keyboards you can add a spring-loaded element here. For removing keys, a dental hook or a tool of a similar shape from engineering kits is best suited. In principle, you can get by with a thin watch screwdriver. The key pad is connected with latches to the elevator; there are three to four connection points in total; it is worth noting that in the case of three there is one, and in the case of four there are two movable connections. The elevator itself is an X-shaped structure, which on the bottom side is attached to the key of the metal base of the keyboard, and on the other side - in the grooves of the platform. We are primarily interested in the fixed connection; it is necessary to insert a hook between these fixed connections into the gap between the platform and the elevator.

On which side are the fixed fasteners located? ? You can already find out by removing at least one key, but most often this is the lower part of the key. It is better to start by lifting one key from one side and then from the opposite side in order to find out which half of the elevator is fixed on the keyboard backing and which is latched into the key grooves. Typically, the keys are removed by prying them off from the top.

In the photographs you can see the elevator in a raised and lowered state. When elevated, the attachment points to the platform are clearly visible (the upper ones are movable, the lower ones are fixed).

We send plastic parts and rubber washers to soak in a bowl of warm water, to which a little washing powder or dishwashing detergent has been added.

Next you need to remove all the elevators. Since everything here is already visible, no difficulties should arise, there are also movable and fixed mounts (in the photo the top one is movable, the bottom ones are fixed), it’s easier and faster to remove, as a rule, from the fixed ones, but there are exceptions. On more or less modern keyboards, elevators have more degrees of freedom; they can not only fold (raise and fall), but also move relative to each other when folded . In this case, it is easier to extend the movable part of the elevator to the maximum (its fastening will go beyond the holding frame) and lift the elevator as a whole, and then release the stationary part from the “vice”.

Having removed all the elevators, it will be possible to remove from the aluminum substrate part of the keyboard with spring-loaded elements, and the polyethylene board with the tracks drawn on them. On fairly old keyboards, the disassembly method may be slightly different; an intermediate stage of removing the plastic edging will be added. In this case, you will need a hair dryer or a soldering iron with adjustable temperature. You need to melt the plastic on the back of the keyboard. When assembling, if possible, then melt the fasteners again to form caps; if not, then drop a quarter of a drop of super-torque or its analogues at the fastening points. Such keyboards most often do not have a layer with spring-loaded elements; these elements are made in the form of separate rubber caps.

You cannot use a soldering iron to repair damaged tracks. The film on which they are applied melts at the touch of a heated soldering iron, and to solder aluminum you will have to use a special flux. Therefore, to repair the keyboard, let’s put the soldering iron away and pay a visit to the nearest auto shop. There you will need to purchase an electrically conductive glue brand "Kontaktol" (Kontaktol-Auto, Kontaktol-Radio). This adhesive is used for quick repairs of car rear window heating filaments and for quick tracing of traces on small printed circuit boards. Other adhesives can be used, but they have greater resistance.

Now let's move on to the main part of the keyboard - flexible boards with drawn tracks. There are three polyethylene parts (sometimes 4), two with tracks and one empty to provide clearance. Two parts with tracks are most often connected to each other along one of the edges and form, as it were, one part, this part is simply folded in half (at the fold there are connecting tracks), but there are exceptions, for example, in the photographs there are three separate parts, just there contact pad for connection. As a rule, on old keyboards these three parts are not glued together (there are two or three spot gluing points), but on more or less recent ones this can be a problem. You can’t just disconnect it, just by pulling you can tear off the tracks where they intersect with the glue. Therefore, we arm ourselves with a hairdryer and a scalpel (or a utility knife), and slowly, starting from the corner of the keyboard (when I say keyboard, I mean the polyethylene part) we begin to separate the layers. The glue is most often blue. Don’t forget to warm up the glue well with a hairdryer before dividing any area. Don’t rush - even if you break a track somewhere, it can be restored later, but if a lot of tracks are torn off, restoring them will be a big problem. However, they often occur modern keyboards with non-glued layers.

So, the layers are corroded. If you can see the remains of a liquid that was spilled, it is better to rinse this part of the keyboard again and dry it again. If there is obvious corrosion and adhered organic matter, wipe the layers with wet wipes for wiping LCD monitor screens. They are impregnated with a solution of isopropyl alcohol (but not alcohol itself - a very high concentration can corrode the coating) and are good at cleaning all kinds of organic contaminants.

Most often, damaged tracks can be seen with the naked eye, but you should still check them with a tester. Theoretically, all damaged areas need to be redrawn, but this is not always possible (the tracks are too close), and this is not always necessary, on a well-washed and dried keyboard, the corrosion process practically stops . All tracks should have a resistance close to 0 Ohm, most often several Ohms if the points being measured are far apart - not critical, but in theory, the tester should show short circuit . A damaged track may not ring at all or have quite a lot of resistance, in which case it is necessary to lay a track over the rotted one. If the track has rotted right up to the contact pad, then you will have to carefully clean the area directly next to the pad with a scalpel.

Practice has shown that all conductive adhesives differ in the specific linear resistance of the material. The glue introduces a resistance of 0.3 to 0.8 ohms per cm. The less, the better.

We find the damaged conductor. Usually, the metal on the current-carrying path in this place turns black or dissolves completely. Using a pencil eraser, you need to restore the metallic shine to the edges of the damaged area.

If such a damaged area is small, then you can immediately put a small drop of glue on the tip of a match or toothpick to restore the current-carrying path. But it’s better to do everything carefully. Along the damaged track on both sides I stick regular electrical tape. You can also use stationery tape, but it usually sticks strongly to the film and is subsequently more difficult to remove.

The glue is applied in a thin layer on the damaged area, so that the glue covers the undamaged areas of the contact track by 3-5 mm . After pre-drying for a few minutes, a second layer of glue is applied.

The actual drawing process can be seen in the photographs. After the glue dries, be sure to check the resistance. The adjacent paths are restored one by one: first we repair one path, then, after the glue on it has completely dried, we repair the adjacent path.

After finishing drawing and drying of the new tracks (for different adhesives from 15 minutes to 1.5-2 hours), it is worth assembling the polyethylene part, placing it on an aluminum pallet and placing the part with spring-loaded elements on top. In this form, carefully connect it, start the laptop and check whether all the keys work. To check, you can use a regular notepad or special program Keyboard test.

If all the keys work normally, you can turn off the laptop, disconnect the keyboard and finish assembling it. Perhaps there is one nuance left with the installation of the keys, or more precisely with the key pads. After installing the elevators, platforms are installed; as a rule, the platform must be lowered onto the spring element in the center, and then press the platform strictly vertically down until it clicks.

Note: If after repair, when you turn on the laptop, it beeps and a key gets stuck, while pressing any other button removes the sticking, and all other keys work without problems, then There was some resistance left between some tracks - apparently they hadn't cleaned it well. If when you press one key a different symbol is displayed, then you have a short circuit. Study how the tracks of the key you pressed and the one whose symbol was displayed are connected.

Kontaktol glue in St. Petersburg was found in the following stores:

1. Mikronika. Novocherkassky, 51. 444-04-88
2. Radio components. Tramway Ave, 12. 377-17-25
3. Samodelkin tool. Tipanova, 5. 371-83-17; Slava, 52. 453-03-44.
4. Electronics Base. Bolshoy Prospekt, P.S., 100, letter A. 337-25-52

Partially used materials fromwww.azbooki.ru

Keys on Dell laptop- some of the most problematic keys you can come across. However, most of the problems that arise with them can be corrected at home. Most professional repair methods involve replacing the keyboard entirely, so take a couple of minutes to determine if it can be fixed another way. If your laptop is still under warranty, contact service technical support Dell to see if you can get your keyboard repaired for free or at a reduced cost.

Steps

Drop-down key repair

Turn off your computer. Also unplug it from the electrical outlet. Repairing your keyboard isn't dangerous, but it's a good idea to always take these precautions before fixing your computer.

Remove the key. Most keys are easy to release - just give them a little twist and they will release from the latch. If necessary, you can lift the key by the corners with a screwdriver flat head.

Inspect the mounting points on the key. There should be up to four attachment points at the base of the key that secure the keys to the keyboard. Carefully inspect the key for a broken mount. Depending on what you find, move on to one of the steps below.

• If you're not sure what you're looking at, disconnect the same-sized working key by prying up on the corners with a flat-head screwdriver. Compare the mounts on both keys.

1. Replace the broken key. If the mounting points are broken, then you will need a new key. Buy a key online. Make sure it matches your laptop model and mounting point locations. To insert a new key, you need to secure one of the key attachment points to the keyboard and then press down on the key until you hear two loud clicks, one on each side of the key.

   • You can also remove a key of the same size that you rarely use and insert it in the place of the faulty key.

2. Repair the metal bracket on the large keys. Spacebar and key ⇧ Shift are held on the keyboard with a metal bracket. If the bracket comes loose, you will have to reattach it to the small plastic hook on the keyboard. The bracket runs along the bottom edge of the key and is attached to hooks at the left and right ends. After you secure the bracket, press down on the key and check if it continues to wobble.

   Inspect the key for other problems. Keys almost always fall out due to damage to the keycap or metal bracket in the case of large keys. If you are sure that the key is in good condition, read the section on stuck keys.

   Repairing a stuck or non-working key

   1. Turn off your computer and unplug it from the electrical outlet. This will reduce the chance of damage to you and your computer.

      Lift the key with a screwdriver. Use a small flat-head screwdriver to remove the stuck key. Start by lifting each corner of the key. Listen for a clicking sound, which indicates that a key has disengaged from the keyboard. Repeat this at each corner until the key is completely removed from the keyboard. You will hear two clicks.

      • Don't use excessive force. If the key does not release, try lifting another corner.
      • To release large keys, such as the spacebar or shift key, you need to lift them up at the top of the key (the side closest to the laptop screen).

   2. Inspect the key for dirt or debris. Because of them, the key may get stuck. Remove small objects with tweezers. Remove dust and animal hair with compressed air or carefully vacuum the key.

      Wipe up spills. If you spill something on your keyboard, then wipe the spill with a lint-free cloth. Dampen a cloth with a small amount of alcohol and gently wipe the keyboard. Do not replace the keys until the alcohol has completely evaporated and the keyboard is dry.

      Inspect clamping plate. The clamping plate is often made of white plastic and consists of two thin square pieces attached to each other. They must be firmly attached to the keyboard and to each other. Otherwise, remove the plate by carefully opening its corners with a screwdriver. Read on to find out detailed instructions for their replacement.

      Inspect the silicone rubber. This rubber band is located under the key. Make sure it is standing and press it gently with a clean, soft object. If the rubber band sticks to the bottom instead of lifting up, it needs cleaning or replacement.

      • Do not touch it with a dirty or sharp object. This part of the keyboard is very easy to damage.
      • Take a lint-free cloth, dampen it a little with alcohol and wipe the elastic. Rub with extreme care and wait until it dries.

   3. Glue on a new rubber band. Before you start, you should understand that this is quite a risky step and if you apply too much glue, it may ruin the key. For greater reliability, it is better to take the keyboard to a computer workshop and replace it all. If you decide to fix it yourself, do the following:

   Installing the clamping plate

   Inspect the plate for damage. The clamping plate consists of two parts. A large square or U-shaped piece is attached to the base of the keyboard and to the key. The smaller part, with a round hole in the center, attaches to a small groove on the base of the keyboard. The two pieces are held together by two small clips, one on each side of the smaller piece. If one of these parts is missing or broken, order a replacement key or clamping plate under specific model keyboards. If both parts appear intact, continue to the next step.

   • Before ordering a replacement key, make sure it comes with a clamping plate. These may be specified as "loops".
   • You can also remove the clamping plate from the unused key and install it on the damaged one.
   • On some models the clamps are separate elements. If they fall out, you can insert them back using tweezers.

   1. Examine the adjacent key. Even on the same keyboard, different clamping plates can be installed in different ways. Disconnect an adjacent key that is the same size as the key you are replacing by lifting it up at the corners. Inspect the clamping plate work key. This will make it much easier for you to understand what the working clamp plate should look like.

      Insert the larger part into the keyboard. On some laptop models, you will have to squeeze a large part of the plate from the sides to insert it into the slot at the base of the keyboard. Do this before securing the two pieces together. Once you attach the piece to the keyboard, you can lift it up a small height.

      • Only one side of this part is attached to the keyboard.

   2. Insert the smaller part of the plate into the keyboard. Hold the smaller part with the concave side facing down, or feel which side attaches to the groove and hold it upside down. Lower it into the slot on the keyboard and snap the plate into the corresponding slot.

   3. Insert two parts. Locate the two pins on the smaller part of the plate. Gently push them into the larger piece until the two pieces are connected.

      • If you press too hard, you may break the clamping plate.

This need arose for me due to the fact that a number of keys in different rows, both alphabetic and numeric, stopped working. Most of all I was afraid that the controller was damaged and I wouldn’t be able to repair the laptop keyboard, but I still hoped that the problem was in the keyboard itself

In this article I will describe my actions, accompanying the text with photographs that I took specifically to make an informative, easy-to-understand article about repairing a laptop keyboard.

Since I know firsthand that the laptop keyboard is the most often damaged part of the laptop. Perhaps there are people among the readers who are ready for self-repair laptop keyboard, that's why I decided to write this article in a style that is understandable to the reader

First, you will need to remove the keyboard; the procedure will vary depending on the laptop model. Most often, the keyboard is screwed onto the front panel; access to the bolts is usually closed by the front cover under the screen, which can be removed without much effort.

The keyboard keys are mounted on elevators, so to speak, which have four attachment points, both to the key and to the keyboard pad.

To remove a key, you need to carefully slide a small screwdriver or a suitable tool under it and make a force, lifting the key upward. In this case, the key will be released from the elevator locks and removed.
Be extremely careful, the mechanism of both the elevator and the key mounts is plastic and breaking it will not be difficult, especially if you have no experience

After you remove all the keys, you will have to remove the film from the keyboard body and divide it into two parts.
The film is usually a book that unfolds and has a transition on one side. It is better to separate the film after pre-warming it, for example with a hairdryer, since the parts are usually glued quite well

To restore damaged tracks, you will need a special glue with high conductivity, ideally containing silver; you can find such glue on the radio market or in specialized stores that sell everything for repairing equipment and electronics. The price is not expensive, it cost me only 100 rubles to buy glue containing silver, Kontaktol

Next, using a multimeter, on the probes of which I soldered needles, we look for damage and breaks, carefully piercing the tracks to make contact with the track. The tracks on the keyboard are covered with microfilm, so you can’t do without piercing them with a probe needle

After you find the damaged parts of the track, all that remains is to clean these places and carefully draw the track with silver Kontaktol and let it dry

Basically everything. We collect in reverse order and we rejoice. The price of a laptop keyboard is on average 2000 rubles, the repair cost me 100 rubles - the price of Kontaktol, there’s even a lot of it left for the future if anything...

We constantly use mobile PCs in our daily lives. In it, the keyboard is the part of the device that takes on the most mechanical stress.

The most common causes of breakdowns

The keyboard on a mobile PC has approximately the same structure as on a personal PC. It, like any device, is very sensitive to all kinds of dirt, animal hair, crumbs, and especially liquid spilled on it. After a certain time of using the keyboard, the buttons on the mobile PC fail or simply fall off.

Also, the cause of breakage of buttons on a mobile PC can be a simple banal cleaning of the keyboard using a vacuum cleaner for this purpose. Or a small child may accidentally tear off a key. Also, the cause of such a breakdown can be pets that live with you. This also happens quite often. But you don’t need to immediately take your laptop for repair. Very often you can do everything yourself.

Button structure

Before you consider how to insert a button on a laptop, you need to know its structure and mounting features.

A button consists of the key itself, a mechanism for holding it and a spring element with which it can be raised and lowered. There is also a special film with platforms and tracks.

The mount consists of two parts. These two parts are fastened together in the center by small “antennae”. They come out of the inner part of the mount and are inserted into special grooves in the outer part. Thanks to this design, they can move when you press them. The button itself is attached to opposite sides.

Let's look at how to insert a button on a laptop

If a button falls out on your mobile PC, there is no need to panic right away. In many cases, the problem resolves itself. At home, you can also solve the problem of how to insert a button into a laptop. To do this, it is enough to have a simple paper clip with you. Before inserting the button into the laptop to replace it, the old part must be removed from the keyboard. Working with buttons on a mobile PC requires more care, as they are flatter and can be damaged if pressed hard. Removing an element goes like this. It is necessary to bend the paperclip into a straight line and pass it under the lower platform of the keys. Now you need to pull it towards you, and the key will jump off its base.

Now let’s figure out how to insert a button on a laptop, provided that all the “antennae” located on the “rocker” and the grooves are not damaged. This is the easiest way. To do this, the button must be installed in the upper position on the base under the required mount. After it is in place, the key must be gently pressed down.

It should be noted that you do not need to use force when installing the keys. Any pressing must be done smoothly and easily.

After installation, you need to carefully check the fastening of the replaced key. When purchasing new buttons, you need to check whether they will fit your laptop model. If you need to change several parts, it is better to do it gradually. So as not to confuse the location on the keyboard.

Before inserting a button on a laptop, you need to carefully check that the plastic mount, which is located under the key itself, is in its place. It may immediately seem that it is very difficult to connect everything. But in fact, this is not entirely true, because in reality there can only be one correct option. You can't install anything differently.

How to insert a large button

Let's look at how to insert a button on a large laptop. These are keys such as Space, Tab, Shift, Enter. In addition to the “rocker”, which is made of plastic, they may also have a metal stabilizer. It is necessary to ensure that the key is pressed evenly. On the inside there are two ears necessary for attaching the stabilizer to them. You need to tie up the ends right away. Next, insert the antennae of the “rocker” into the grooves and put the button in its place by lightly pressing it.

The space bar is supported by several “rockers” and a stabilizer. A situation may arise that the “rocker” may be disassembled. It is easy to assemble using a needle or toothpick. One side needs to be inserted into the groove, and the other is installed using a needle.

Let's look at how to insert a button on a laptop in which the mount is made using metal brackets instead of plastic swings. The mounting here is also simple. Just note that it will be noisier.

How to fix a button on a laptop

It is necessary to clearly understand that there will most often be only one attempt to repair the button. This must be taken into account before installing a button on the laptop. Before starting the necessary work, you need to have the following tools available:

We place the broken mount on its workplace. Take a needle and a soldering iron. We apply the needle to the place of the broken antennae and make sure that it goes there a few millimeters. We heat it with a soldering iron and fuse it into the mount. We bite off the unnecessary part of the needle. Clean off excess plastic.

Let's consider another option on how to install a button on a laptop. We heat the needle with a lighter and make a groove with it, into which you can place, for example, lint or something like that. Place it in the groove and glue it with superglue

How to make a new button yourself

If the button stops working, there is no need to rush to throw it away immediately. Maybe she's just sunk and can be put in her place. If not, then first you need to carefully examine the button. If it is just a little cracked, then it can be glued together with simple superglue. The only most important thing is that her contact is in the same place.

If the key cannot be glued, you can make it yourself. Let's look at how to make a button on a laptop yourself. To do this, you need to have plasticine with you. You need to make the necessary shape from plasticine and fill it with resin. You also need to put the contact there. It must be installed correctly. To make it even, it can be trimmed with ordinary sandpaper. So, we figured out how to make a button on a laptop at home. In some cases, this is easier than taking your mobile PC for repair.

If the button just fell out

If a button falls out of a laptop, you need to perform the following steps. On its reverse side there are grooves and latches. They contain “rocker ears”. Their purpose is to connect the button to the keyboard. If the rocker key falls out, they need to be disconnected. Then the “rocker” is installed. There will be a button cover on it. They are connected to each other by the grooves that are located on them.

So, we figured out how to install a button on a laptop. As you can see, this is not very difficult to do, and in many cases you can solve the problem without contacting a service center.

The keyboard is an essential device for use personal computers and laptops. Failure of this component makes work and leisure time at the computer completely inconvenient. Are problems with the information input device removable? How to fix the keyboard yourself? We will examine this question in detail in this article.

Main types of faults

It's no secret that these devices can have different shapes And additional keys with the corresponding functionality. Even take the same multimedia keyboard, which has a number of special keys at the top. Pretty convenient, right?

But what should you do if several keys stop doing their job or the entire keyboard is completely out of order? Without a doubt, you can purchase a new device, but then you need to be prepared to spend 10-100 dollars on a new device. Why spend money if you can restore your old device to working condition? Prepare a soldering iron, Phillips screwdriver, tester and read the description of problem solving for several cases.

The keyboard doesn't work at all

The most common cause of failure is a broken wire connection inside the USB cable, which we are used to using to connect an information input device to a computer.

Important! Most often, the rupture occurs at the base of the keyboard itself or near the connection connectors.

In order to establish the exact cause of the breakdown, you need to look at the operation of the LEDs, which are usually located in the upper right corner of the device. If the keyboard is “working”, then all three lights should flash and go out when the computer restarts. If this does not happen, then you need to arm yourself with a multimeter (or any other testers) and test the cable. To do this you need to do the following:

1. Turn the device over, take a screwdriver and unscrew all the screws that hold the cover.
2. You will see a “film” in front of you with a large number of tracks. Also inside the keyboard is printed circuit board and a small microcircuit that is a black drop.
3. The wire itself must be soldered to the board. We need to check the integrity of its connection to it. We take a multimeter, turn on the ohmmeter on it and call the desired area. You can also ring the diode, which is much more convenient because of the sound signal.
4. If at least one “vein” does not ring, then replacing the defective wire cannot be avoided. You can try using wire cutters to bite off that part of the wire that is located where it passes into the keyboard body.
5. If everything is in order with the wires, then the problem is most likely in the microcircuit itself. Then you will definitely have to run to the store for a new one.
6. There is a possibility that the problem is with the connector itself. Inspect it carefully for defects and straighten the bent legs with a thin, hard object, if any defects exist at all.

We've sorted out bringing the entire device back to life, but how to fix a button on a computer keyboard?

The keyboard works, but not completely

We often spill something on the desktop, and it’s good if the liquid did not get on the keyboard from the computer, because if the keyboard gets wet, then several buttons or even all of them may fail to work. Also, strong mechanical influences, which sometimes happen by accident. What to do in all these cases? Let's talk about each method of how to repair a keyboard in detail.

Spilled liquid

Did your favorite tea end up on your input device? Immediately disconnect the gadget from the computer and wait until it dries completely. If after this several buttons become unusable, then the following recovery method will help you:

• Remove all keys to expose the space underneath. Use thin objects or loops of copper wire for this.

Important! If you are a novice user, we recommend that you save a photo of the location of the keys on your computer so that assembly goes smoothly.

• Set the keys aside and turn the keyboard over. Now unscrew about a dozen screws holding the cover.
• Remove the cover and the film with the tracks, wipe them very carefully with a cotton swab moistened with alcohol. Let the film dry completely.
• Again, take a cotton swab moistened with alcohol and wipe the area under the keys.
• All that remains is to put everything back together and check the device for functionality.

Mechanical influences

The keyboard device contains contact pads and conductive rubber. All of them are located directly below the keyboard buttons. Sometimes minor damage to paths can be repaired using special compounds, capable of conducting current. They are applied to conductive rubber tracks and bases. But repairs are not always possible if the device has been used for a very long time.

Important! Users who are fond of typing texts can completely forget about repairing it, since there is no point in it. Rapid wear and tear will return everything “to its place.”