Keyboard is a peripheral that used to input alphabetical or numerical characters in to the computer. Keyboard is a very important peripheral for computer. So, what's the meaning of a computer, when there isn't keyboard in it ? SO, I've found so many problem in keyboard that probably you've ever seen too.

Now, I will show some problems to you.



1. When first Booting (POST), your PC issue message "Keyboard error ... cmos checksum failure ... Press F1 to continue and delete to setup". Once you follow the instructions above but you do not see the signs. Possible causes:

a : Connector tenuous keyboard can cause a message across the screen keyboard error .... if the keyboard / connector shaken , then the pc goes back to normal . but this will not last long . S
OLUTIONS is to prop the keyboard connector to the paper .

b : there is the possibility that the keyboard data cable is broken. usually break at the base of the connector , the base of the males . if you have this , the keyboard will not run again .
SOLUTIONS is a measure of the keyboard data cable using Avo meter . if it is found there is a cable break, then replace it with another cable . or you can reconnect the disconnected cable .

Controllers ICs contained in the function convert keyboard language / code digits into ASCI keyboard to inform that in accordance with the button pressed . If the IC is damaged . then the keyboard will be silent . SOLUTIONS is to replace another keyboard . IC components because it is more expensive than the price of the keyboard itself .

If the keyboard is no damage as above . the possibility of breaking the fuse is located on the motherboard near the female keyboard connector , which reads F1/FSI/L1 . that function delivers a voltage of 5v to the keyboard . if the fuse is broken then the voltage to the keyboard will be disconnected .
SOLUTIONS is to replace the fuse with one another and must be the same size .

2. Some keyboard keys not working

The possible keyboard failure , caused by the dust on the path the character emphasis .
SOLUTIONS is open the keyboard and clean it with alcohol wipes given up evenly on the entire surface . oh yes there is a path in the suppression character keyboard made ​​of thin sheet fed PCB track as the base material . There are three PCBs . Top PCB , PCB bottom , and the middle as an insulator .

Another possibility if the keyboard does not work is the link between the key switch to the other one there is disconnected or there is a loose socket . if this happens you may think the keyboard could no longer be used .
SOLUTIONS is to measure the key PCB track using avo meter and find where the location of rupture . To connect the lines or the use of gold ink which is another metal . scratched / broken lines apply to the to be able to connect back and wait for it to dry . or you can replace the gold ink by using a special pencil that is used for the computer .

3. Keyboard response is too fast

Probably caused by dirty Keyboard (PCB). SOLUTIONS is cleaning use Vacuum Cleaner or using alcohol.



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