•Scrapingthesurfaceofthereaderwithyournailoranythinghard.
•Usingortouchingthereaderwithadirtynger .
•Thesurfaceofyourngerisverydifferentfromwhenyouenrolledyourngerprint.

Thewirelesskeyboarddoesnotwork

Symptom:Thewirelesskeyboarddoesnotwork.
Action:IftheTransceiverCommunicationsLEDisonandthewirelessKeyboarddoesnotwork,restartyour
computer.Ifrestartingyourcomputerdoesnotsolvetheproblem,verifythatthefollowingconditionsaremet:
•Thebatteriesareproperlyinstalled.
•Thebatteriesstillretaintheircurrent.
•ThewirelessKeyboardislocatedlessthantenmetersawayfromthetransceiver.
•Thetransceiverisfullyinstalled.
Action:IftheTransceiverCommunicationsLEDisnoton,reconnectthetransceiverandthekeyboard.
Monitorproblems
Note:Manymonitorshavestatus-indicatorlightsandbuilt-incontrolsforadjustingbrightness,contrast,
width,height,andotherpictureadjustments.However,thecontrolsvaryfrommonitortypetomonitortype.
Forinformationaboutthestatuslightsandusingthecontrols,refertothedocumentationthatcomes
withyourmonitor.
Selectyoursymptomfromthefollowinglist:
•“Wrongcharactersappearonthescreen”onpage99
•“Themonitorworkswhenyouturnonthecomputer,butgoesblankaftersomeperiodofcomputer
inactivity”onpage99
•“Themonitorworkswhenyouturnonthecomputer,butgoesblankwhenyoustartsomeapplication
programs”onpage100
•“Theimageappearstobeickering”onpage100
•“Theimageisdiscolored”onpage100

Wrongcharactersappearonthescr een

Symptom:Wrongcharactersappearonthescr een.
Action:Havethecomputerserviced.Fordetails,seeChapter11“Gettinginformation,help,andservice”on
page111.

Themonitorworkswhenyouturnonthecomputer,butgoesblankaftersomeperiod

ofcomputerinactivity

Symptom:Themonitorworkswhenyouturnonthecomputer,butgoesblankaftersomeperiodofcomputer
inactivity.
Action:Thecomputerisprobablysetforenergysavingswiththepower-managementfeature.Ifthe
power-managementfeatureisenabled,disablingitorchangingthesettingsmightsolvetheproblem.
Iftheseactionsdonotcorrecttheproblem,runthediagnosticprograms(see“Diagnosticprogr ams”on
page109forinstructions).Ifyouneedtechnicalassistance,seeChapter11“Gettinginformation,help,and
service”onpage111.
Chapter10.Troubleshootinganddiagnostics99