Check the functionality of the buttons. Key-Test - testing the keyboard and keys. Check the keyboard operation online

If you encounter problems with your keyboard, then The best decision, which you can accept for yourself is to first try to solve the problems yourself, and if nothing works out, then with a clear conscience go for the purchase of a new device.

You are about to type something and suddenly find that the keyboard is indifferent to your actions. Are you wondering what can be done in such a situation?

There are many components in a computer that could theoretically cause the system to fail. The keyboard is one such component. computer equipment. For example, some or all of the keys suddenly stop working. If you are facing any issue with your keyboard, we suggest you try some troubleshooting steps.

Troubleshooting keyboard problems

If computer keyboard does not show any signs of life, then the first thing you should do is check the connection between the keyboard and the system unit. Find the keyboard connection location, usually the back wall system unit, remove the connector from the socket and reinstall it. Check if the keyboard works. If it doesn't work, restart your computer and check again. You can test the functionality of the keyboard or PS/2 (or USB port) by connecting the keyboard to another computer, or vice versa, by connecting another keyboard to your system.

If you notice that some keys on the keyboard have become difficult to press or do not work at all, then particles or dust may have gotten into the space between the keys or inside. Try cleaning the keyboard, turn it with the keys facing down, and tap lightly. You can even, in particularly advanced cases, use a vacuum cleaner.

If some keys don't work even after you clean them, you may need to replace them. This problem mainly occurs with frequently used keys. If any liquid accidentally gets on the keyboard, immediately disconnect it from the port. Turn it down with the keys and hold it there for a while until it dries. It’s a good idea to use a fan or hairdryer in such a situation. After it is completely dry, check its functionality by connecting it to your computer.

Some keys on the keyboard may not work if the device is left in a cold room for a period of time. long period time. If so, warm her up and wait a few minutes. Then check its work by typing a few sentences in a program.

If the keyboard is not working, then updating the appropriate drivers may solve the problem. To update drivers in Windows, go to Start->Control Panel->Hardware and Sound->Keyboard->Hardware->Properties->General->Change Settings->Driver->Update Driver. Driver Update – good way get rid of keyboard problems.

In order for you not to experience problems with the keyboard, typing should be smooth, especially in the case of laptops. If your wireless keyboard has problems with functionality, then the first thing you should do is make sure that the batteries are not dead.

These are, perhaps, all the measures that you can take in case of problems with the keyboard. If none of the above helps, then you will probably have to purchase a new device.

The keyboard is the main one mechanical device for entering information into a PC or laptop. While working with this manipulator, unpleasant moments may arise when the keys get stuck, the wrong characters are entered that we press, and so on. To solve such a problem, you need to know exactly where it lies: in the mechanics of the input device or in the software in which you type the text. This is exactly where online services for testing the main tool for working with text will help us.

Thanks to the existence of such web resources online, users no longer need to install software, which is not always free. Keyboard test can be performed different ways and each of them will have its own result. You will learn more about this below.

Online input device testing

There are a few popular services to check the correct functioning of the manipulator. They all differ slightly in methodology and approach to the process, so you can choose the one that is closest to you. All web resources have virtual keyboard, which will imitate your mechanical one, thus allowing you to identify the breakdown.

The first tester in question is English-speaking. However, no knowledge of English is required because the site provides just the right amount of features you need to test your typing device. The main thing when checking on this site is attentiveness.

Note! The service does not distinguish between duplicate buttons on your keyboard. There are 4 of them in total: Shift, Ctrl, Alt, Enter. If you want to check each of them, click them one by one and look at the result in the virtual manipulator window.

Method 2: Key-Test

The functionality of this service is similar to the previous one, but has a much nicer design. As with the previous resource, the functional essence of the Key Test is to check whether each key is pressed correctly. However, there are small advantages - this site is Russian.

The virtual keyboard on the Key-Test service looks like this:

As in previous method, you need to press the duplicate keys one by one to check their functionality. One of the duplicates will be displayed on the screen as one button.

Testing your keyboard is a simple but painstaking process. To fully test all keys, time and extreme care are required. If faults are found after the test, it is worth repairing the broken mechanism or buying a new input device. If the tested keys in a text editor do not work fully, but did work during the test, then you have problems with the software.

How to diagnose and repair or replace a laptop keyboard with your own hands.

If you have a laptop rather than a desktop PC, you can't just go out and buy new keyboard. And replacing the built-in one will be a difficult (or expensive) task. So it’s wiser to first try to find the problem and repair it yourself. And as a last resort, think about replacing the device.

If you haven't purchased yet external keyboard, buy. Of course, this is an unequal replacement for the built-in one, but with it you can log in to the system using your password. In addition, in some cases such an external device is useful, for example, in games. After all, it is much easier to replace a broken external keyboard than to repair a built-in one.

The first thing you need to do is determine the source of the problem. That is, what is the problem: hardware or software. To do this, boot through a floppy drive or flash device Live Linux. (Live Linux allows downloading operating environment without installing it on HDD.) And what kind Linux distribution you choose does not matter, for example Ubuntu. What is it for? This way you will work with your hardware bypassing the Windows OS.

Once you boot into Linux, run any text application, that is, an application in which you can write text. It doesn't matter browser, notepad or text editor. For example, Ubuntu comes with LibreOffice. Try typing all the keys.

Software problem

If you can enter text on Linux but not on Windows, the problem is most likely in the driver for that device. Replace it with the original one included with the laptop.

Boot into Windows and open Device Manager. From the desktop: This PC - Properties - Device Manager.

In Device Manager, find and expand (by clicking on the arrow) the “Keyboards” section. Double click on your internal keyboard.

Attention. If you connected external device, make sure you click on the inner one. If you are confused, turn off the external one.

In the dialog box that opens, click on the "Driver" tab and click on the "Delete" button to remove it. Naturally, after the removal process, the device will not work. Reboot your laptop. And during reboot Windows will automatically reinstall the original one. Did this solve your problem?

Hardware problem

If only a few keys stop working, dirt and dust may be the reason. Try cleaning the keypad. You will need a can of compressed air, they are commercially available. Turn off your laptop. Clean the gaps between the keys and under the keys. Use for this compressed air and a thin brush or straw. Concentrate on the problem keys.

If repairing your keyboard doesn't work, you'll probably need to replace it. Contact a professional, or do it yourself.

Replacing a laptop keyboard

First of all, make sure you buy the appropriate keyboard. Place it on the device and see if it is the correct shape and size. Next, prepare the necessary tools: a small screwdriver, tweezers and a knife with a thin blade.

Turn off your laptop. Not only by completing Windows operation, but also by disconnecting and removing the battery.

Pay attention to the panel between the keyboard and monitor. Most often, access to the keyboard is located under it. Carefully inspect and remove the screws holding this plate. Please note that some of its parts can be secured with small screws with reverse side devices.

Before removing the top plate, check whether there may be a data cable attached to the back of it connecting it to the laptop. This train is very important and usually has little to no slack, so be careful. Otherwise you will tear it or destroy the connector.

After freeing the panel from the screws, carefully remove it. If necessary, use a thin knife. The panel should come out easily with a little effort, do not use force. If it cannot be removed, check again to see if there are still any screws that have not been disconnected, even under the device, and unscrew them.

After removing the panel, carefully set it aside. If it is connected by cable to the laptop, ensure its integrity. Then locate and remove the screws holding the keypad in place. Usually these are two to five screws located in the upper part of it.

Before removing the keyboard, again pay attention to its back, there it can be connected to a data cable that is connected to the computer itself. This cable also usually has no slack, so be careful when working. It is extremely important to avoid rupture and destruction of the connector.

Carefully remove the keypad and disconnect the data cable, mirroring the small tab on the connector. After disconnecting the cable, set it aside.

Take new device, align it (without inserting it), and connect the data cable to the connector on the laptop. Usually by inserting a flat cable into the connector as far as it will go, and clicking the small lock that is mirrored in the connector onto it. With the cable connected, place the keyboard in place. Do not pull or damage the cable. Insert and tighten the screws holding the device. Reinstall top panel. Usually this does not require much effort. Tighten all previously removed screws securing the top panel.

After that, insert the battery and boot the laptop. If you did everything correctly, you now have a completely working keyboard.

The computer keyboard is the most important element computer system. Its importance cannot be overestimated, especially for people who regularly engage in typing - typing various texts. Unfortunately, the keyboard does not always work flawlessly; over time, some of the keys begin to sink, their rubber gaskets fail, and the contact membranes oxidize. When it becomes necessary to check the operation of the keyboard on our PC, the corresponding network services that allow you to check the keyboard online can provide valuable assistance. In this material I will tell you how to diagnose a keyboard online, what network services will help us with this, and how to work with them.

In most cases, the corresponding network services that allow you to perform a keyboard test online are arranged in a rather formulaic manner. You go to the appropriate network resource, and, pressing key after key on the keyboard, check whether these keys are polled by the computer. Those keys, the presses of which are recorded by the system, acquire a different color on the screen or are painted in a frame of a different color (usually blue). Thus, by sequentially pressing all the buttons, you can clearly see which key is not polled by the system and, accordingly, has failed.

At the same time, there are also cases when an unstable key itself registers a press on it without the direct participation of the user (the so-called “stuck” key). In this case, the network service will record repeated pressing of such a key, you will be able to determine the source of the problem and try to correct the situation.

The key to quality typing is a reliably working keyboard

If you don't know and don't use keys, you definitely need to find out what they are for and use them in your work.

Online keyboard testing services

Let's move on to a description of network services that allow you to test your keyboard online. I will provide links to these resources and provide a description of working with them.

Key-Test - diagnostics of key operation

The Russian-language Key-Test service allows you to quickly and efficiently test your keyboard online, without the need to download and install external programs on your PC.

1. To work with the service, go to it, switch your keyboard to English layout(this way the keys will be detected by the service more correctly), and by pressing the keys successively, monitor their fixation by this service.
2. The keys pressed by the user will be colored in Blue colour.
3. The key that blinks yellow and blue without pressing it is most likely “stuck” and needs to be repaired.
4. At the top of the page there is a small black screen on which text mode The sequence of keys pressed is recorded. It will help you pinpoint problem keys on your keyboard more accurately.

Virtual keyboard of the “Key-Test” service

Keyboardtester - testing the functionality of the keyboard

The English-language keyboardtester service will also allow you to monitor the operation of your keyboard online. To work with it, go to this resource keyboardtester.com, click on big button“Launch the Tester”, a large window with a picture of the keyboard will open in front of you.

Successive key presses of the keyboard color the images of these keys on the screen in green color(you can also hear a characteristic pressing sound). Flashing between yellow and green the frame of a key (without the user pressing it) can signal a stuck key.

At the very top of the keyboard screen, you can select the sound when you press a key (None - no sound, Click - standard click, Josh - pronouncing a given word).

Mackeytest.root-project - checking the input device

Although this service intended for keyboard testing Mac computers, it can also be used for testing standard keyboards user PCs.

To get started, go to the mackeytest.root-project service, and by successively pressing the keys on the keyboard, determine whether all of them are correctly polled by the system. The polled keys will be colored blue on the screen, the sticky keys will blink blue and yellow.

Online keyboard tester service.

Another English-language service for online keyboard testing. Its screen area is not as convenient as the aforementioned Keyboardtester (second on my list), but this resource can also be effectively used to test the functionality of keys online.

To work with it, go to the specified service Online keyboard tester, and start sequentially polling the keys of your keyboard. Normally functioning keys will be highlighted in green.

Working window " Online keyboard tester"

Conclusion

You can check your keyboard online using one of the network services I listed above. It is enough to switch to one of them, and, pressing the keyboard keys one by one, check the functionality of each available key. If pressing any of the keys does not register when pressed, this may mean the need to repair your PC keyboard (or its complete replacement). In such cases, a temporary panacea can be to call the virtual keyboard of the Windows OS, for which click on the “Start” button, enter osk in the search bar, press enter, and the virtual keyboard will appear on the screen of your PC.

In contact with

The keyboard is the main tool when working on a computer, without which work is almost impossible. Of course, you can enter information using a mouse and on-screen keyboard, but this method is inconvenient and full-fledged work will not work.

In this article we will tell you what to do if the keyboard on your computer does not work and consider everything possible reasons this malfunction.

The keyboard is a fairly simple device and usually works flawlessly. However, there are times when the keyboard indicator lights up, but nothing is printed.

Why the keyboard doesn't work: reasons

There are two types of reasons why a computer keyboard may not work:

1. Mechanical (cable break, moisture ingress, excessive contamination of the keyboard, violation of the integrity of the connection ports, and so on).
2. Software (software failures, incorrect BIOS settings, wrong drivers to the keyboard and so on).

Let's look at all the main reasons why the keyboard does not work and troubleshooting methods.

Problem with the cable or keyboard port

The first step is to evaluate physical state keyboards.

Look at the indication Caps buttons Lock and Num Lock. Most likely, if they work, then physically everything should be fine with the keyboard.

Visually inspect the keyboard cable. It may be pinched or cut. For example, many pet owners have pets that chew through cables.

Also, visually check the keyboard connection port to see if there are any fractures or bends in it. There are two types of keyboard connection ports - USB and PS/2.

It often happens that when people try to connect to a computer in a PS/2 port, they break off the tip of the wire and the keyboard does not connect.

If externally the cable USB keyboards s and the connection port look good, then try plugging the keyboard into another port Computer USB. The port on the computer itself may be damaged. If the keyboard works in another port on the computer, then you have a problem with USB port. Usually there are several of them on the computer and you can simply leave the keyboard connected to the port that works.

In the case of a keyboard with a PS/2 port, you should check the functionality of the keyboard connection port on another computer, since such a port on motherboard only one. To test the functionality of your computer's PS/2 port, you will have to find another such keyboard.

Spilled liquid and dirt on the keyboard

A flooded keyboard is a headache for all IT specialists and Goldmine for all service centers laptop repair. Very often, when working on a computer, people pour tea, coffee, beer and other liquids onto the keyboard. As a result, the keyboard may fail.

As a rule, it is easy to determine visually and by smell that liquid has been spilled on the keyboard. Carefully inspect the keyboard. Remove a couple of keys. If you see that there are traces of spilled liquid or food on the keyboard or under the keys, then you have two options. Either buy a new keyboard, or meticulously disassemble the flooded keyboard, clean it, dry it and put it back together. With a high degree of probability, the keyboard will work.

Earlier, we already talked in detail about how to clean a computer keyboard at home.

Checking USB settings in BIOS

In the event of a computer power failure, the BIOS settings may change, which contains an item about enabling and disabling USB support keyboards on a computer.

Additionally, in this way you can check the serviceability of the keyboard in principle, since it may not work in Windows, but work in the BIOS. In this case, the failure is caused by software or drivers.

To enter the BIOS and check the settings, do the following:

1. Turn on your computer.
2. Press on the keyboard DEL button until the BIOS settings window appears.
3. In the BIOS settings, find the USB Keyboard Support or Legacy USB menu.
4. Make sure the setting is in the Enable state. If it says Disable, then switch to Enable.

You can also set the remaining BIOS settings related to USB to Enable. You may be able to get ports on the front panel of your computer case that once stopped working.

Software or driver failure

Keyboards with older PS/2 connectors are more susceptible to software glitches. However, there are still quite a lot of such keyboards in use, although manufacturers have almost stopped producing them.

To resolve the problem of your keyboard not working due to software, you need to turn on your computer and log into your desktop. Since the keyboard has stopped working and does not print, but account a password may be set, you will need to use on-screen keyboard and type the password with the mouse.

Now that you are on the desktop of your computer, you need to get to Device Manager.

In Windows 8 and Windows 10, to do this, click right click mouse on button Start and select device Manager.

In Windows 7, left-click on the button Start. Next, right-click on the word Computer and select Computer management — device Manager.

Device Manager displays information about all devices on your computer. Expand the Keyboards branch. If there is an orange question mark next to your keyboard, it means the device is not installed correctly on the system.

Right click on your keyboard and select Delete.

After that click Action — Update hardware configuration.

The computer will rescan all devices and install the keyboard correctly.

Factory defect or keyboard has reached the end of its service life

Any technology tends to break down and fail. If the keyboard was purchased relatively recently, then you may have encountered a manufacturing defect. In this case, you can contact the keyboard manufacturer's support service and expect a replacement device.

The fact is that many manufacturers value their reputation and, without entering into long debates with the buyer, immediately send a brand new keyboard by mail.

If you have had the keyboard for more than a year, then most likely it has failed due to service life and you should buy a new one.