Acer travelmate 2300 Keyboard common fault diagnosis
Second, the keyboard Dell latitude D520 Keyboard Acer Aspire 3000 Keyboard Acer travelmate 2300 Keyboard common fault diagnosis
In the computer device, the keyboard because of their high frequency of use, so it is most vulnerable to failure of the peripherals, one way to master the proper maintenance is very necessary.
(A) detection method of keypad fault
When the keyboard, no reaction, according to the following steps to detect the keyboard itself, the existence of failures:
1. Ensure that the keyboard is correct.
2. Turn the computer power supply, testing whether the normal use of the keyboard.
3. If you can not use, it can receive the keyboard on the computer do the other tests.
4. If you still can not be used, it can be confirmed is the failure of the keyboard itself.
(B) the demolition of the keyboard
Using the keyboard, if they discover a key failure or other failure, it is necessary for the demolition of their repairs. As the entire keyboard is mounted on a printed circuit board, to remove a button, it is more troublesome, the general demolition of repair steps are:
1. Flip the keyboard, the original screw stuck with gently prized open floor (to be stepping down as screws), removed the keyboard enclosure, remove the entire keyboard, pull out the keycap.
2. Removed from the printed circuit board solder joints, when key switch and printed circuit boards to be separated from the key with needle nose pliers will be positioned on both sides gather the pieces toward the center in order to key units remove iron from the location.
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