Personal Computer User Manual

Chapter6.Troubleshootinganddiagnosticprograms

Thischapterprovidesinformationaboutsomebasictroubleshootinganddiagnosticprograms.Ifyour

computerproblemisnotdescribedinthischapter,seeChapter7“Gettinginformation,help,andservice”on

page31

foradditionaltroubleshootingresources.

Thischaptercontainsthefollowingtopics:

•“Basictroubleshooting”onpage27

•“Diagnosticprograms”onpage28

•“Cleaninganopticalmouse”onpage29

Basictroubleshooting

Thefollowingtableprovidessomebasicinformationtohelpyoutroubleshootyourcomputerproblems.

Note:Ifyoucannotsolvetheproblemafterdoingthebasictroubleshooting,havethecomputerserviced.

RefertotheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputerforthesafetyand

warrantyinformationandthelistofserviceandsupporttelephonenumbers.Youcanalsogetthelatest

serviceandsupporttelephonenumbersandaPDFversionoftheThinkCentreSafetyandWarrantyGuide

fromtheLenovoSupportWebsiteat:

http://www.lenovo.com/support

SymptomAction

Thecomputerdoesnotstart

whenyoupressthepower

switch.

Verifythat:

•Thepowercordiscorrectlyconnectedtotherearofthecomputerandtoa

workingelectricaloutlet.

•Thepowerindicatoronthefrontofthecomputerison.

•Thecomputervoltagematchesthevoltageavailableattheelectricaloutletfor

yourcountryorregion.

Themonitorscreenisblank.

Verifythat:

•Thepowercordiscorrectlyconnectedtotherearofthecomputerandtoa

workingelectricaloutlet.

•Thecomputervoltagematchesthevoltageavailableattheelectricaloutletfor

yourcountryorregion.

•Thebrightnessandcontrastcontrolsaresetcorrectly.

TheUSBorPS/2keyboarddoes

notwork.

Verifythat:

•Thecomputeristurnedon.

•Thekeyboardiscorrectlyconnectedtoanappropriatekeyboardconnector(the

PS/2keyboardconnectororoneoftheUSBconnectors)onthecomputer.

•Nokeysarestuck.