ForWindows7:
1.ClickStart➙ControlPanel.ChangetheviewoftheControlPanelfromCategorytoLargeicons
orSmallicons.
2.ClickKeyboard.
3.SelecttheHardwaretab.IntheDeviceProperties,makesurethattheDeviceStatusisThisdevice
isworkingproperly.
ForWindowsXP:
1.ClickStart➙ControlPanel.
2.ClickPrintersandOtherHardware,andthenclickKeyboard.
3.SelecttheHardwaretab.IntheIntheDeviceProperties,makesurethattheDeviceStatusisThis
deviceisworkingproperly.
Ifkeysonthekeyboardstilldonotwork,havethecomputerserviced.
•Problem:Anumberappearswhenyoutypealetter.
Solution:Thenumericlockfunctionison.Todisableit,pressShift+ScrLkorFn+NmLk.
•Problem:Allorsomekeysontheexternalnumerickeypaddonotwork.
Solution:Makesurethattheexternalnumerickeypadiscorrectlyconnectedtothecomputer.
Displayandmultimediadevices
ThissectionincludesthemostcommondisplayandmultimediadevicesproblemswhichareComputer
screen,Externalmonitor,Audio,andOpticaldrive.Checkthesetopicstolearnmoreinformation.
Computerscreenproblems
•Problem:Thescreenisblank.
Solution:Dothefollowing:
–PressF6tobringuptheimage.
Note:IfyouusetheF6keycombinationtoapplyapresentationscheme,pressF6atleastthreetimes
inthreeseconds,andtheimageisdisplayedonthecomputerscreen.
–Ifyouareusingtheacpoweradapter,orusingthebatteryandthebatterystatusindicatorison(is
green),pressF8tomakethescreenbrighter.
–Ifthesleep(standby)statusindicatorison(isgreen),pressFntoresumefromthesleep(standby)mode.
–Iftheproblempersists,dotheSolutionintheproblembelow.
Note:IfyourcomputerisaWindows7model,itdoesnotsupportthepresentationscheme.
•Problem:Thescreenisunreadableordistorted.
Solution:Makesurethat:
–Thedisplaydevicedriverisinstalledcorrectly.
–Thescreenresolutionandcolorqualityarecorrectlyset.
–Themonitortypeiscorrect.
Tocheckthesesettings,doasfollows:
ForWindows7:
1.Right-clickonthedesktop,andclickPersonalize.
Chapter10.Troubleshootingcomputerproblems135
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