Computer keyboard is one of the most commonly used computer input devices in the device , but also that you use most frequently used devices. Due to frequent use computer keyboard , computer keyboard case so often occurs in the failure of the course . Today and share with you after the failure of a computer keyboard solution .
Tools / materials
• U disk, keyboard cleaner with a soft brush , blow up balloons
The case of a desktop computer keyboard failure
Typically computer keyboard failure following two situations:
Percussion keyboard keys without display
After you open a word processing software, or other editors , whether you enter any character on the keyboard , the display did not have any display .
Keyboard input and screen display inconsistent characters
The letters on your keyboard to enter letters in the display and no correspondence or enter a numeric character is displayed .
Desktop computer case one of the processing methods and procedures
Check that the keyboard was electric
Press the button on the left side of the keyboard Caps Lock key to toggle the case , observe the indicator lights on the keyboard Caps are lit. If you can light up , indicating that your hardware keyboard may have been broken. If the keyboard does not light up to show that you are either bad or is connected with the host computer is bad , the keyboard has no power .
Check the keyboard connection interface with the host computer to determine whether good contact
The keyboard connected to the computer with a USB cable to the host computer ‘s USB host interface reseated , because behind the host desktop computer has multiple USB ports , you can also change a USB port to connect to see if good contact.
Tips: For some older models, if your keyboard is a PS2 connector cable
Please note that there is breakage or PS2 interface is inserted in the wrong location, such as the PS2 keyboard connector mouse connector found on the PS2 interface.
Reconnect after test
Reconnect often step 2 is basically to ensure that the contact with the host computer ‘s keyboard to normal. Now you can open a word processing software on your computer , the editor using the keyboard to enter a few characters to see if there is display . If normal , Congratulations you have successfully processed keyboard failures , otherwise proceed to the next step. Detection host interface is normal
If you do this step , then the probability of your keyboard is usually broken relatively large, but first do not arbitrary, we test the interface to the host computer to a conclusion. Find a usb device , such as U disk . We put it into the computer interface, see if you can use a normal , if normal use , it indicates that your keyboard is broken, you can replace a new keyboard , otherwise the normal description of the keyboard , your computer system or system has a problem , you need professionals to deal with , not repeat them here .
Desktop computer case two processing methods and procedures
This happens usually indicates the host computer keyboard is connected properly , but the keyboard has a problem , the following approach :
The case of letters and numeric keypad keys function key failure
If the result of the case or the numeric keypad keys failure leads to inconsistent input display , you can check -sensitive switch key left of the keyboard Caps Lock key , Shift key and right key NumLock key functions are normal switch. Sometimes due to the frequent use of these function keys , conductive rubber keyboard will not work under the keyboard bounce caused by failure occurs, you can check this cap if these keys keyboard is always jammed due to abnormal reasons resulting in the pressed state failure. In this case you can manually toggle the appropriate keys to reset it repaired.
A character repeated failures occur and the surrounding joint letter
For the above phenomenon , usually because a key bit is always stuck in the pressed state and neighboring keys associated with conductive rubber is in contact so that the keyboard intermittent failures . In this case , you can use your fingers for the occurrence of the failure of some of the keys to repeatedly reset button or pressing all the keys back again, has made the keyboard to normal.
Tips: Of course, because the glass down on the keyboard because the tea spilled on the keyboard will cause the keyboard part failure, this time with the host should disconnect the keyboard and the keyboard upside down to dry after the water is drained normal use, for water keyboard because scuppers ( slot ) is disordered upside down, just the keyboard to scupper ( slots ) can be tilted . Failure to display a character missing for such a situation , usually because the keyboard dust or debris from entering the internal keyboard snacks hinder conductive rubber metal contact with the circuit board under the contact of the keys can not enter the letters displayed . For this situation, you can use the keyboard cleaner with a soft brush , blow up balloons carried on the keyboard slot blowing dust blown debris to solve the problem , if the above method can not solve the problem, disconnect the keyboard and the host computer inverted keyboard, after beating aligned , reconnect it to work . Keyboard Keyboard garbled garbled phenomenon more annoying , this situation usually only one way you can try , and that is disconnected from the host computer keyboard , and then reconnect the keyboard to see if return to normal. If reconnect still fail, then you do not hold what hope. Such cases are usually garbled keyboard chip failures caused , we are not equipped to handle , you will get a new keyboard now . Laptop keyboard case malfunctioning laptop keyboard failure common approach is basically similar with the desktop , can be resolved by the above method . For some specific cases need to look at the following steps: a small part of the letter keys keyboard replacement laptop keyboard because the space is smaller than the average desktop keyboard, so it has some function keys are function keys with the Fn key to the achievement of certain specific functions , such as digital key alternative  M key cases, this is often not understood by everyone , and mistakenly thought it was a keyboard failure, in fact, the simplest way is to look at the bottom of the digital display light is lit. Once the indicator light indicates the numeric keypad zone is active, there is no doubt , M These keys are replaced with the numeric keys . You just need to hold down the left side of the keyboard area key and function keys at the top right to switch back and forth . External keyboard for half past one would not handle the keyboard failure fault , you can find an external keyboard via USB connection is a pressing problem . Especially when large quantities of digital inputs , it is strongly recommended that an external keyboard input more convenient. Soft keyboard for keyboard failure of emergency law and does not solve the case of an emergency spare keyboard on hand , we can use the soft keyboard with the mouse to the emergency , input method here an example to introduce a mouse click on the to the right of the “Language Bar” button or by Ctrl + Shift keys to bring up the input method state . As shown in the pop-up state , use the mouse to click on the soft keyboard button, as shown in Figure red box right-click the mouse button , make sure the PC keyboard options , as shown otherwise, your soft keyboard with mouse point out that other characters, you will think garbled. Figure on the following pop-up soft keyboard , you can use the mouse to click on the appropriate button to enter characters , methods, and the use of a physical keyboard is the same, not repeat them here . Of course, if you want to close the soft keyboard only need to click on the soft keyboard input method button on the status bar again.