Note:ToopentheUltraNavDeviceSetting,clickStart➙ControlPanel➙HardwareandSound
➙Mouse➙UltraNav.
Keyboardproblems
•Problem:Allorsomekeysonthekeyboar ddonotwork.
Solution:Ifanexternalnumerickeypadisconnected:
1.T urnoffthecomputer.
2.Removetheexternalnumerickeypad.
3.T urnonthecomputerandtryusingthekeyboardagain.
Ifthekeyboardproblemisresolved,carefullyreconnecttheexternalnumerickeypad,externalkeyboard,
makingsurethatyouhaveseatedtheconnectorsproperly.
Iftheproblemremains,makesurethatthecorrectdevicedriverisinstalled.
1.ClickStart➙ControlPanel.ChangetheviewofControlPanelfromCategorytoLargeicons
orSmallicons.
2.ClickKeyboard.
3.SelecttheHardwaretab.IntheDeviceProperties,makesurethattheDeviceStatusisThisdevice
isworkingproperly.
Ifkeysonthekeyboardstilldonotwork,havethecomputerserviced.
•Problem:Allorsomekeysontheexternalnumerickeypaddonotwork.
Solution:Makesurethattheexternalnumerickeypadiscorrectlyconnectedtothecomputer.
DisplayandmultimediadevicesThissectionincludesthemostcommondisplayandmultimediadevicesproblemswhicharecomputer
screen,externalmonitor,andaudio.Checkthesetopicstolearnmoreinformation.
Computerscreenproblems
•Problem:Thescreenisblank.
Solution:Dothefollowing:
–PressFn+F7tobringuptheimage.
–Ifyouareusingtheacpoweradapter,orusingthebatteryandthebatterystatusindicatorison(is
green),pressFn+F9tomakethescreenbrighter.
–Ifthesleepstatusindicatorison(isgreen),pressFntoresumefromthesleepmode.
–Iftheproblempersists,dotheSolutionintheproblembelow .
•Problem:Thescreenisunreadableordistorted.
Solution:Makesurethat:
–Thedisplaydevicedriverisinstalledcorrectly.
–Thescreenresolutionandcolorqualityar ecorrectlyset.
–Themonitortypeiscorrect.
Tocheckthesesettings,dothefollowing:
1.Right-clickonthedesktop,andclickPersonalize.
2.ClickDisplayattheleft.
3.SelectChangedisplaysettings.Checkwhetherthescreenresolutioniscorrectlyset.
Chapter10.Troubleshootingcomputerproblems131