How to change the keyboard on an Acer 5749 laptop.
Probably the most common part in a laptop that fails is the keyboard. And if this happens to you, then in this article we will tell you how to change the keyboard using the example of an Acer 5749 laptop.
For this procedure we will need a spatula or a flat screwdriver.
At the top of the keyboard there are internal latches, which we use our tool to press and thus release.
There are six such latches in this laptop model.
Having pressed them all out, the upper edge of the keyboard rises above the surface, and by hooking it by the edge, we lift it and turn it over, gaining access to the cable connector.
The keyboard cable is fixed in the connector with a lock, which must be raised 90 degrees.
Once released, the cable will jump out of the connector on its own.
The keyboard is disabled and now you can repair it, or replace it with a new one and perform the connection procedure in reverse order.
We insert the cable into the connector and close the lock.
Then, resting the keyboard with the lower guides in the grooves, we snap the latches in the upper part by pressing on it.
If something is unclear to you, you can watch the video below:
Or follow the link and watch on our YouTube channel.
Source
What is a keyboard button on a laptop?
Here are the elements that make up a button on a laptop:
- the lid itself is made of plastic with a lock;
Important! Make sure the swing is attached to the plastic part completely, otherwise it will fall out.
Acer Aspire V3 and V5 keyboard does not work: How to remove, how to change?
The Acer Aspire V3/V5 series has a very cool keyboard for, in general, budget models. Key travel, location, tactile sensations - everything is really up to par. Also backlit! But if something strange starts to happen to the keyboard at one point, then serious problems loom ahead.
Symptoms:
Keyboards of these models, judging by the forums, usually suffer from the following common problems:
Attention!
Keyboard repair is one of the most difficult repairs in laptop design. Therefore, without basic skills in circuit design and ownership. If you are ready to delve into the microcircuit (yes, the keyboard is one big microcircuit), then first go to this store, and then get ready to spend most of the time with a soldering iron in your hands
How to remove the keyboard?
All these shortcomings can be solved only by removing the keyboard. This is done very simply. One of the design advantages of the Aspire V3/V5 series laptops is the easy removal of the keyboard. To disable it, you only need to unscrew two screws on the back of the case.
Then just push a little with a screwdriver, paste or whatever fits into the hole and help a little with your hands on the back side - the keyboard will pop out. Just don't overdo it.
Backlight disappears
A separate cable is responsible for the backlighting on the keyboard. First of all, you need to check its integrity - appearance, kinks, etc. Secondly, we look at the mount. It’s not very conveniently made on the case, so connecting it well is another task. Check the contact.
Many users are annoyed by the fact that, by default, the backlight is always on when the operating system starts. This function cannot be changed. On the Internet and on forums you can find a lot of advice on how it can supposedly be disabled at the start, but all these tips no longer work - neither in the BIOS, nor in driver settings, nor third-party software can do this. Therefore, every time you boot the OS, you must manually turn off the backlight, if it is not needed, using the Fn + F9 key combination
The keyboard does not respond to pressing
Sticky keys. Key travel is difficult
Purely mechanical problem. Perhaps you should eat less over your keyboard. If standard purges? cleaning does not help, then you need to check the rocker on the key, which is difficult to press.
As practice shows, repairing Acer Aspire keyboards is quite ineffective. The above “sores” often cannot be treated in any way, so the only 100% option is to replace the keyboard, fortunately the components for these models are a carriage and a small cart. And the price is more than adequate.
They write on the Internet that you can wash the keyboard. Will this help?
The effectiveness and safety of keyboard cleaning has been questioned by many. Reviews are generally negative, but sometimes it really helps. In our case, this is useless, because The keyboards of the Acer Aspire V3 and V5 are of the “closed” type. This can be clearly seen in the photo below. That is, in order for washing the keyboard to have any effect, it must be completely disassembled - and this is a serious and lengthy operation. Better not.
Replacing the keyboard. What are they like for Acer Aspire V3/V5?
It is important to know that, depending on the model, there are keyboards with a frame on the body and without a frame. Those. When ordering, pay attention to this, because... constructively - they are different. Installing one in place of the other will not work. It is worth noting that a keyboard with a frame is very difficult to find. Specialized stores do not supply them, there are practically none on Avito, and if they do slip through, then for a very high price tag - 3-4 thousand rubles.
This is what the keyboard looks like without the frame
This is what a keyboard with a frame looks like
The exact model of the keyboard is written on the main cable. It’s better to google the keyboard for it:
In our case it is MP-11f53SU. The stores are full of them, choose any one - there is no problem at all with buying a keyboard for the Acer Aspire. Prices are more than adequate.
Removing the keyboard
If the laptop model does not allow you to simply lift the plate with the button mechanics, you should understand: removing the keyboard will be very difficult. To do this, you will have to disassemble and dismantle almost all parts of the device. If you are confident in your abilities, you can watch a video on the Internet and get down to business.
Advice! To replace or deep clean the keyboard, it is recommended to take the laptop to a service center. The cost of cleaning after a spill or installing a new keyboard is high, but there is a guarantee that the specialists will do everything correctly and there will be no problems after their work.
How to remove the keyboard. Acer Aspire laptops
Sometimes there are cases when it is necessary to remove the keyboard. This could be a trivial cleaning, or cases where something was spilled on the keyboard, or a trivial replacement of the keyboard with a new one. Keyboards are in most cases standard and a keyboard from one model can easily fit another. The price of keyboards ranges from $30 to $150
Description of the keyboard mount
In many laptops, in particular from the Acer Aspire
The keyboard is held in place by latches that can fit into the case:
Acer Aspire 5920
There are 4 such latches on top and two on the sides.
Note: Some laptops may not have latches. To remove the keyboard you will have to remove the top front panel above the keyboard
Let's proceed directly to removing the keyboard. To do this, use a screwdriver to push in the top left latch and slightly lift the edge of the keyboard. To do this, you can pry it with a needle or gently pull the “Esc”, “
Are all laptop keys removable?
All mechanical keyboards have removable keycaps.
. To remove the keycaps, pry them off with a screwdriver or spatula. ... To avoid damage, buy a wire key puller.
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How to remove a laptop key and their features
Compared to older device models, modern keyboards are equipped with flat keys. Moreover, almost all modern devices have a keyboard identical in design. You won’t be able to unhook the key just like that; most likely you’ll just break the fastening mechanism.
Before removing a laptop key, you need to prepare a suitable tool. Ideally, it is better to find a flathead screwdriver with a curved end; it will make it much easier to work with key latches. It is also worth preparing several toothpicks for more delicate actions.
How to remove keys from a laptop keyboard
Before starting the removal procedure, you must turn off the device and remove the battery, thereby eliminating the possibility of a short circuit. It is also most convenient to start from the bottom of the keyboard. All manipulations must be performed extremely carefully and without unnecessary effort. If you adhere to these principles, there will be no problems with how to remove the keys from the keyboard of an asus laptop .
The button is fixed with three or four plastic antennae in fixed and movable grooves. We primarily pay attention to the fixed grooves. To do this, slightly lift the button and see where they are located. They are often located at the bottom.
If you simply grab and pull the key up, the tendril-shaped fasteners are guaranteed to break. Therefore, to know how to remove keys from a laptop keyboard, proceed as follows:
Now every user knows how to remove a key from an Acer laptop
Clearing debris
You can remove debris under the buttons yourself; you don’t need to take your laptop to a service center to do this. The following methods are recommended to be used at regular intervals as a preventative measure. It is useful to clean the buttons so that your beloved Asus and Lenovo do not cause problems.
Important! It should be especially noted: all deep cleaning actions must be done after completely turning off the power to the laptop.
Vacuum cleaner
A car or household vacuum cleaner will help you quickly clean your keyboard from dust and debris. Before using the device, it is better to turn the laptop over and shake it thoroughly to remove large particles from the structural elements. Some of them immediately spill out.
You need to proceed as follows:
- use a narrow furniture nozzle;
- carefully use a vacuum cleaner to go through all the spaces between the keys;
- You need to move the nozzle slowly, changing its angle.
Important! This method will to some extent help to quickly save a laptop from a sweet or alcohol-containing drink. The vacuum cleaner will remove some of the excess liquid, preventing it from entering the electronics of the device.
Compressed air
Today, in stores that sell computer care products, you can buy cans of compressed air. They are easy to clean the buttons from debris. Instructions for use are included with each can. The main process looks like this:
- the cylinder tube must be installed at an acute angle to the gap between the buttons;
- press air supply;
- Blow the keys first in one direction, then in the other.
Advice! Working in a living room is not recommended. It’s better to put your laptop on the balcony to air it out or go outside with it.
Acer Aspire V3 and V5 keyboard does not work: How to remove, how to change?
The Acer Aspire V3/V5 series has a very cool keyboard for, in general, budget models. Key travel, location, tactile sensations - everything is really up to par. Also backlit! But if something strange starts to happen to the keyboard at one point, then serious problems loom ahead.
Symptoms:
Keyboards of these models, judging by the forums, usually suffer from the following common problems:
Attention!
Keyboard repair is one of the most difficult repairs in laptop design. Therefore, without basic skills in circuit design and ownership. If you are ready to delve into the microcircuit (yes, the keyboard is one big microcircuit), then first go to this store, and then get ready to spend most of the time with a soldering iron in your hands
How to remove the keyboard?
All these shortcomings can be solved only by removing the keyboard. This is done very simply. One of the design advantages of the Aspire V3/V5 series laptops is the easy removal of the keyboard. To disable it, you only need to unscrew two screws on the back of the case.
Then just push a little with a screwdriver, paste or whatever fits into the hole and help a little with your hands on the back side - the keyboard will pop out. Just don't overdo it.
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Backlight disappears
A separate cable is responsible for the backlighting on the keyboard. First of all, you need to check its integrity - appearance, kinks, etc. Secondly, we look at the mount. It’s not very conveniently made on the case, so connecting it well is another task. Check the contact.
Many users are annoyed by the fact that, by default, the backlight is always on when the operating system starts. This function cannot be changed. On the Internet and on forums you can find a lot of advice on how it can supposedly be disabled at the start, but all these tips no longer work - neither in the BIOS, nor in driver settings, nor third-party software can do this. Therefore, every time you boot the OS, you must manually turn off the backlight, if it is not needed, using the Fn + F9 key combination
The keyboard does not respond to pressing
To check whether there is contact when pressed, special software is used - Keyboard Test Utility. Despite the fact that it is many years old, it copes with its duty - it recognizes whether a key has been pressed using the keyboard driver (more precisely, scan codes). This way, the key presses and releases are checked and this will also help identify the problem - if the driver “sees” your key presses, then the problem is most likely in the operating system and/or keyboard driver. And if the press is not registered, there is a hardware (mechanical) malfunction. You need to disassemble and look at the keyboard in detail.
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Sticky keys. Key travel is difficult
Purely mechanical problem. Perhaps you should eat less over your keyboard. If standard purges? cleaning does not help, then you need to check the rocker on the key, which is difficult to press.
As practice shows, repairing Acer Aspire keyboards is quite ineffective. The above “sores” often cannot be treated in any way, so the only 100% option is to replace the keyboard, fortunately the components for these models are a carriage and a small cart. And the price is more than adequate.
They write on the Internet that you can wash the keyboard. Will this help?
The effectiveness and safety of keyboard cleaning has been questioned by many. Reviews are generally negative, but sometimes it really helps. In our case, this is useless, because The keyboards of the Acer Aspire V3 and V5 are of the “closed” type. This can be clearly seen in the photo below. That is, in order for washing the keyboard to have any effect, it must be completely disassembled - and this is a serious and lengthy operation. Better not.
Replacing the keyboard. What are they like for Acer Aspire V3/V5?
It is important to know that, depending on the model, there are keyboards with a frame on the body and without a frame. Those. When ordering, pay attention to this, because... constructively - they are different. Installing one in place of the other will not work. It is worth noting that a keyboard with a frame is very difficult to find. Specialized stores do not supply them, there are practically none on Avito, and if they do slip through, then for a very high price tag - 3-4 thousand rubles.
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This is what the keyboard looks like without the frame
This is what a keyboard with a frame looks like
The exact model of the keyboard is written on the main cable. It’s better to google the keyboard for it:
In our case it is MP-11f53SU. The stores are full of them, choose any one - there is no problem at all with buying a keyboard for the Acer Aspire. Prices are more than adequate.
How to remove the space key from an asus laptop
Using the method presented above, you can remove all the keys of a laptop computer with the exception of spacebar and shift. These keys have a slightly different fastening system, and accordingly they are removed differently.
As you know, the spacebar has an impressive size. Therefore, it is fixed not only with antennae, but also with a latch, which is located along the entire length of the button.
You must act extremely carefully and without sudden movements. To do this, we will use a screwdriver, which was previously used to disconnect standard keys. Next, in order to remove a key from an asus laptop without damaging it, we proceed as follows:
Having released the amplifiers, all that remains is to remove the antennae from the grooves. To do this, we use the same method as with regular keys.
How to disassemble an Acer laptop
We unscrew the two screws of the cover, under which there is a hard drive, a Wi-Fi module and RAM.
We take out the hard drive, sliding it to the left, unscrew the screw securing the Wi-Fi module, disconnect the cables to the antennas from it and pull it out of the connector. We also remove the laptop’s RAM modules by moving their mountings to the motherboard apart.
On one of the planks we see traces of liquid filling - we can say that we were lucky - there is very little liquid and it has not dried yet.
This liquid must be washed with alcohol. If the liquid has not yet dried, then blot it with a paper napkin. And then we clean the microcircuit with alcohol. Alcohol has the property of drawing water out from under the microcircuits. So you can repeat the following procedure several times. Pour alcohol, clean with an old toothbrush or brush, blot off excess with a paper napkin, and let dry. After drying the board, we inspect it again for the presence of oxides. They shouldn't exist at all.
We continue to carefully disassemble the Acer 5750 - remove the keyboard. To do this, you need to release the keyboard from the latches circled in the photo.
The most convenient way to remove the keyboard on a laptop is with a scalpel or thin knife. By bending the latch you need to lift the keyboard, preventing the latch from falling into place.
Lifting the keyboard we see a cable that needs to be carefully released from the connector mount on the motherboard.
Under the keyboard we see that next we need to unscrew five screws and release two cables.
After this, use a scalpel or knife to pry up the top panel of the laptop, which is also held on by latches - they all need to be released.
Below is a photo of the top panel of the laptop, which needs to be inspected for moisture penetration - this is how you can determine where it has penetrated into the inside of the laptop.
To free the motherboard, you need to unscrew three screws and pull out five cables. Wi-Fi antenna wires can be easily peeled off and pulled out. I would also advise removing the left speaker, as it slightly interferes with removing the motherboard from the laptop case.
We lift the Acer 5750g motherboard, starting from the right edge, freeing the connectors on the left from the seats in the case. The power cable from the bottom of the board prevents you from lifting the motherboard completely. We carefully pull it out by swaying.
To wash and clean the motherboard, remove the BIOS battery - this will reset all settings to factory settings.
Why you need to clean
The user is in constant contact with the keyboard while working at the laptop. But many people don't think about the fact that it needs to be cleaned. After all, the garbage is almost invisible from the outside. With active use, you can wipe the device after 10–15 days, then it will look like new. But after a year it is necessary to carry out a general cleaning. Over this period of time, not only dust, but also hair and crumbs accumulate under the buttons. And along with them are microbes harmful to health.
A lot of debris accumulates under the keys
Tea, coffee and other drinks spilled on the keyboard are dangerous for the entire laptop. If now the computer works normally without cleaning, then after some time, for example, a couple of months, it can be thrown away. Why? The liquid penetrates through the keyboard into the case, ending up on the motherboard and contacts, which become shorted or oxidized. As a result, not only the board will suffer, but also the hard drive, processor and other components. The accumulation of dust on conductive elements also leads to a short circuit. Excess dirt and sugary drinks cause the keys to stick.
Liquid gets between the keys and can damage the electronics in the case
Cleaning the keyboard
As you know, during the use of a laptop, a huge amount of dust and dirt accumulates in the keyboard of the device. All this negatively affects the performance of the keys. Due to this, many users are interested in how to remove a key from a Lenovo laptop in order to carry out the necessary cleaning. It was already presented above how to remove the necessary keys, and all dust and dirt are removed using a vacuum cleaner at minimum power. Remove particles that remain after vacuuming with a toothpick or cotton swab.
You can also wash the keys in soapy water to remove any stuck-on dirt. This point is especially relevant when the keys are light and all the dirt is very noticeable.
How to care for your keyboard
In order for the device to work well and preventive cleaning to be effective, you need to follow not only the care tips, but also follow some rules of behavior when working with a laptop:
- do not eat or drink near the laptop - the trajectory of the spilled drink is unpredictable;
- do not place containers with water, such as a vase of flowers, near the device;
- Before work, wash your hands with soap so that the buttons do not get dirty;
- do not hit the keys - pressing the buttons hard does not affect the typing speed, and the keyboard may be damaged.
Now about the rules of keyboard care:
- Once every two weeks, carry out preventative cleaning: moisten a cloth with diluted isopropyl alcohol and wipe the keyboard. Alcohol will remove not only dust from the surface of the buttons, but also grease. You can use special napkins;
- Vacuum the keyboard with a special or regular vacuum cleaner. The second one pulls out debris more powerfully;
What can a dirty laptop keyboard cause?
If dust and dirt get inside the keyboard of a regular computer, the only harm they will do is damage the keyboard itself. But when dirt and dust from the laptop keyboard gets onto its “stuffing”, then the following troubles await you:
Considering all these factors, every owner needs to know how to clean a laptop keyboard and do it regularly on their own if there is no time to take the device to specialists.
There are times when regular keyboard cleaning is not enough. For example, when you spilled juice or tea on your laptop. Here you will have to completely disassemble the keyboard and wash it with a special solution.
When you see a solid layer of dust, and the apple, hp, acer or asus icons are no longer visible behind the seed husks, serious keyboard cleaning is planned. How to clean it? Your input device requires careful handling. In case of a breakdown, the same model may not be found in stores, or it may be expensive even in comparison with the original purchase price.
Periodic cleaning
Keeping your laptop clean is a laudable desire. However, a complex film of finger grease and dust still accumulates on the surface of the buttons. It is durable and difficult to wash. Cleaning the laptop keyboard is done using the following means:
- soapy water;
- diluted isopropyl alcohol;
- special care products.
When working, do not use a large amount of the product. They just need to wet the napkin. After this, just thoroughly wash the keys of your HP, Dell, MSI and other favorite. If soapy water was used as a cleaning agent, the residue formed after drying can be removed with clean water by moistening the key with it.
Today there are special napkins on sale. They can not only clean your laptop keyboard quickly and without leaving any residual marks. The display is also wiped with special wipes to remove fingerprints or dust deposits.
How to remove and reinsert a laptop key
After removing and reinserting the laptop keys, the procedure can be considered complete. In general, putting the keys in place is a completely simple task and is carried out strictly in the opposite direction.
We put the standard keys in their place and carefully press down the top edge, wait for a click, and then press down the bottom edge and wait for the click.
We operate differently with the spacebar key. First of all, we fix the metal amplifiers into the grooves of the keyboard base. Next, place the key and press on the top edge, and then on the bottom and wait for a click.