A solution that the computer keyboard can't use

Digital keypad fails on keyboard

This is a lot of novice friends will often make the most low-level errors, usually desktop large keyboard, leading to keyboard numeric keypad (0123456789) key failure Most of the reason is that everyone turned off the digital keypad, we can see if the NumLock key is open, corresponding to a number of keyboard lights, Press the NumLock key above the light is turned on the numeric keypad.

And some novice friends often ask why my notebook keyboard right part of the letter key to play out is really a number rather than letters, very tangled! In fact, this is because the number of notebook keys and letter keys exist in combination, when the digital keyboard, the part of the right letter keys are arranged into a number of keys, mainly because the notebook keyboard is relatively few, The factory has set up intelligent switch function. The solution is as follows:

If only the keypad is locked, then press and hold the FN+NUMLK key to toggle, and vice versa. There are a few novice friends often do not know the wrong, the letters are all uppercase, this is because of the opening of the capital letter key function, Cancel simply press the "Caps Lock" button to switch normal.

Some keyboard keys on the keyboard fail, this is not any regular button failure

The keyboard part of the key failure, this situation is most of the computer keyboard internal circuit board failure, this phenomenon is generally due to the circuit board or conductive plastic on the dirt, so that the two can not be properly connected. Other factors are also possible, such as: keyboard plug damage, line problems, motherboard damage, CPU work is not normal, but not the main reason. The former you can try the following methods to solve, the latter general and computer failure or keyboard failure is not covered in this article.

1. Disconnect the keyboard. Note that when you open the keyboard, be sure to the button face (that is, we operate the side) downward, the circuit board up, or each button on the conductive plastic will fall off, to your repair brought trouble.

2. Open the circuit board, circuit boards are generally made of soft plastic film, engraved with the button line, with a concentration of more than 97% alcohol cotton (75% of the medical alcohol cotton can also, because I have used, but preferably with high concentrations of alcohol cotton) gently on the circuit board scrub two times. For the key failure part of the line to take care of several times.

3. Check the key failure part of the conductive plastic, if the above accumulated a lot of dirt, the same use of alcohol scrubbing. If there is damage to conductive plastic, then the author recommends that you can not use the conductive plastic switch to the damaged parts, although this "Peter Paul" measures can not let the keyboard play all the functions, but at least to extend the life of the commonly used buttons.

4. Remove the dirt in the corner of the keyboard, tools can be used brush, small brush, etc., but to pay attention to the action to be gentle.

5. Check the welding module has no virtual welding or off welding, if you will use electric iron, you can repair welding work. Of course this step only applies to friends who will use the electric iron, will not use the friend, please skip this step.

6. Install the keyboard. One thing to be aware of here is that you have to wait until the alcohol is volatile and clean.

If the above methods are not resolved, you can try to use the method to troubleshoot:

To modify the driver of the keyboard: Open System Properties via "My Computer" and select the hardware tag: Open Device Manager, we find that the default keyboard driver for the Chinese Windows XP operating system is "standard 101/102 keys or Microsoft Natural PS/2 keyboards."

1. Right-click Select Update Driver, the Hardware Update Wizard appears: Select Install from list or specified location (advanced), click Next, and select Do not search. I want to select the driver to install myself. ”

Click Next to go to the "Select a device driver to install for this hardware" page to remove the tick before the check box "show compatible Hardware". In the standard keyboard model bar, select

"Japanese PS/2 keyboard (106/109 Key)", click Next, pop-up "update Driver Warning", point "yes". Confirm Device Setup window continues to point yes.

2. Complete the Hardware Update Wizard. Restart your computer.

Modify registry: Click "Start" menu, point "Run", enter "regedit", open registry, enter "HKEY_LOCAL_MACHINE Systemcontrolset001controlkeyboard Layouts", there are many children inside , by observing I found that the end of "0804" is the Simplified Chinese input method. Open e00e0804, you can see the "Layout File" subkey in the right subkey, double-click to open the item, change "Kbdus.dll" in the value data to "Kbdjpn.dll" and "OK". So, you can change all the subkeys ending with "0804" in "Layout File" to "Kbdjpn.dll", specifically according to their own commonly used input method to choose. And then restart the computer!

If none of the above methods can be solved, it is likely that the hardware failure, the most common is the keyboard hardware failure, the keyboard internal wrench is oxidized, resulting in circuit breakers, we can change the keyboard to try, most of them can solve the problem, of course, there are very few due to the keyboard plug damage, wiring problems, motherboard damage, CPU work is not normal, and so on, we need to take to the professional maintenance of local specific detection.