All Types Of keyboard problem and solutions

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All Types Of keyboard problem and solutions

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Question / Problem

Complete keyboard problem and solution for Windows OS

Solution

Solutions:

problem 1: During Installation an error message indicating no keyboard connected

solution: 1.check the keyboard cable and see whether it is completely into the PC connector

             2.Try another compatible keyboard

             3.check the wiring between PC keyboard connector and motherboard

Problem2:During installation an error message Indicating that the keyboard lock is ON

solution:1.Make sure that the keyboard is unlocked. if not unlock it

            2.If the switch is unlocked position and the system detects unlocked check the          working of switch

            3.If the switch is working the problem may be with the motherboard

problem 3:The keyboard is completely dead -No keys appear to function

Solution: 1.Try with a alternate keyboard if it works the problem is probably on the keyboard interface chip. It is better to replace the keyboard rather than the chip

                2.If the alternate keyboard fails,using multimeter check for +5V supply at the keyboard connector. If this is missing,female keyboard connector may be broken

                 3.heck the keyboard connector pico-fuse

problem 4:One or More keys are struck or repeating

Solution: 1.Foreign object like staps, paperclip etc may fall between keys and may land across PC board connect or remove the keyboard housing assembly and remove all the dust and foreign object carefully

                2.If it is not possible to clear to jammed key,replace the entire keyboard assembly
.

problem 5: KBC error or a similar message displayed during system boot up

Solution: This is due to either data signals are missing or keyboard clock missing. it is better to replace the motherboard.

problem 6: The keyboard keys may be programmed with macros and it has to clear by the following the steps

Solution: 1.This is because , The keyboard may be programmed with macros and it has to be clear by the following the steps
                     (i) If the keyboard has REMAP key press it
                     (ii) Press CTRL key twice to map the key to itself
                     (iii)Press ALT key twice to map the key to itself
                     (vi)Press The SUSPEND MACRO Key
                     (v)Press SUSPEND MACRO,CTRL ant ALT Keys

.

Applies to

Windows 2008 Server ,Windows XP, Windows 7, Windows Vista

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