Computer keyboard Trouble Shooting

  Keyboard can be said to be our most commonly used and the computer's most important input device. If the keyboard is missing, the computer loses its ability to interact with people. This not only requires that the keyboard does not often fail, but also requires the use of keyboard input accurate, sensitive, so that the computer really listen to us, rather than let it bother us. That being the case, what is the cause of the keyboard malfunction and how to solve it? Now let's take a look. Some keys on the

keyboard cannot type

This time the computer starts with a self-test, but when it starts, most keys can be typed correctly, and individual keys cannot be typed. This situation indicates that the circuit on the keyboard, the host keyboard control interface is normal. The reason that individual keys cannot be typed may be that the spring in the key block is invalid or the key is contaminated with dust. This time we just open the keyboard, with a dry towel to rub the keys and metal contact place, if the spring is broken, the careful twist it, it is not possible to change one on it. The

Keyboard does not type the information that we want

when the machine is started normally, when we enter a key character characters in the input box, the characters on the standard key are not displayed, but the characters of the other keys are displayed. This situation most of the key is normal, there are several key input does not display the character of the button itself, and show the characters of other keys, is generally the key to the link loose or off, resulting in the string of key code caused by. To solve this situation, just open the keyboard, check the key line, find the fault location, adjust the correct, and then tighten the screws on it. The interface of the

Keyboard is broken

Sometimes, the keyboard interface is broken, and how to input it doesn't matter. In this case, we need to take the keyboard apart. Remove the key cap, drop one or two drops of alcohol, put on the key cap, repeatedly hit several times, such as can not be typed, indicating the spring failure, repair springs or replace the new keyboard. In general, the keyboard interface on the motherboard after the keyboard, and not often plug, should not be easily damaged. But in the actual work of the keyboard interface damage to the motherboard is very much, most of the performance is the first time the computer is occasionally started to report keyboard errors, press "F1" continue to be able to operate normally, and then the keyboard can sometimes be used sometimes cannot use, to the last keyboard is a little role also. Even if the replacement of the keyboard is the same fault, you can exclude the reason for the keyboard, and then determine that the motherboard has a problem with the keyboard interface. The general keyboard is controlled by a special peripheral chip by the South Bridge, and some are controlled directly by the bridge chip. If the peripheral chip is damaged, the keyboard can not be used, if the keyboard, mouse and USB interface of the power supply is not normal, it will also show that the keyboard can not be used, but also because the keyboard interface bad contact caused by the keyboard can not use when time. 3lian.com

Keyboard dust cleanup

used for a long time, whether it is the keyboard surfaceOr the inside of the keyboard, may be full of dust. How to clean up at this time. We can flip the keyboard back lightly, let the dust inside out, you can also use a damp cloth to clean the keyboard surface, but note that the wet cloth must be screwed to prevent water into the keyboard. A keyboard that uses longer time needs to be disassembled for maintenance. Remove the keyboard is relatively simple, unplug the keyboard and the host connection cable plug, and then the keyboard head down to the work table, unscrew the bottom of the screws, you can remove the keyboard back cover plate. If you are cleaning the inside of the keyboard, be sure to remember not to use water to clean, because the water can easily corrode the metal in the keyboard. Can be cleaned with alcohol. You can also use a paint brush or oil painting pen to remove dust on the circuit board and keyboard keys. I remember once I did not know that the water was washed, not completely dry and wait to take it, the result is completely burnt out.

After cleaning or wiping, we can install and restore it. When you install the Restore note One note to wait for the key, front panel, rubber pad All dry, before you can restore the keyboard, otherwise it will lead to the keyboard contact rust, and also pay attention to the position inside, otherwise it will cause the key can not be connected.