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Cleaningyourcomputer
Itisagoodpracticetocleanyourcomputerperiodicallytoprotectthesurfacesandensuretrouble-free
operation.
CAUTION:
Besuretoturnoffthecomputerandmonitorpowerswitchesbeforecleaningthecomputerand
monitorscreen.
Computer
Useonlymildcleaningsolutionsandadampclothtocleanthepaintedsurfacesofthecomputer.
Keyboard
Tocleanyourcomputerkeyboard,dothefollowing:
1.Applysomeisopropylrubbingalcoholtoasoft,dust-freecloth.
2.Wipeeachkeytopsurfacewiththecloth.Wipethekeysonebyone;ifyouwipeseveralkeysatatime,
theclothmayhookontoanadjacentkeyandpossiblydamageit.Ensurethatnoliquiddripsonto
orbetweenthekeys.
3.Toremoveanycrumbsordustfrombeneaththekeys,youcanuseacamerablowerwithabrush
orcoolairfromahairdryer.
Note:Avoidsprayingcleanerdirectlyontothedisplayorthekeyboard.
Opticalmouse
Thissectionprovidesinstructionsonhowtocleananopticalmouse.
Anopticalmouseusesalight-emittingdiode(LED)andanopticalsensortonavigatethepointer.Ifthe
pointeronthescreendoesnotmovesmoothlywiththeopticalmouse,youmightneedtocleanthemouse.
Tocleananopticalmouse,dothefollowing:
1.Turnoffyourcomputer.
2.Disconnectthemousecablefromthecomputer.
3.Turnthemouseupsidedowntocheckthelens.
a.Ifthereisasmudgeonthelens,gentlycleantheareawithaplaincotton-tippedswab.
b.Ifthereisdebrisinthelens,gentlyblowthedebrisawayfromthearea.
4.Checkthesurfaceonwhichyouareusingthemouse.Ifyouhaveaveryintricatepictureorpattern
beneaththemouse,itmaybedifcultforthedigitalsignalprocessor(DSP)todeterminechanges
inthemouseposition.
5.Reconnectthemousecabletothecomputer.
6.Turnyourcomputerbackon.
Displayscreen
Dustbuildupcompoundsproblemsassociatedwithglare.Remembertocleanyourmonitorscreen
periodically.See“Cleaningaat-panelmonitorsurface”onpage59or“Cleaningaglass-screensurface”
onpage60.
Cleaningaat-panelmonitorsurface
Ifyouhaveaat-panelcomputerdisplaythathasaexiblelmsurface,dothefollowingtocleanthespecial
surface.Wipeitgentlywithasoft,drycloth,orblowonthescreentoremovegritandotherlooseparticles.
ThenmoistenaclothwithLCDcleanerandwipethescreensurface.
Chapter9.Preventingproblems59
- ThinkCentreE93z 1
- UserGuide 1
- FirstEdition(August2013) 2
- Contents 3
- AppendixF .ENERGYSTARmodel 5
- Index..................99 5
- Importantsafetyinformation 7
- Powercordsandpoweradapters 8
- Plugsandoutlets 9
- Externaldevices 9
- Heatandproductventilation 9
- Operatingenvironment 10
- Modemsafetyinformation 10
- Lasercompliancestatement 11
- Powersupplystatement 11
- Cleaningandmaintenance 11
- ThinkCentreE93zUserGuide 12
- Chapter1.Productoverview 13
- Chapter1.Productoverview3 15
- Specications 16
- Lenovoprograms 16
- Chapter1.Productoverview5 17
- Chapter1.Productoverview7 19
- Locations 20
- .Productoverview11 23
- Adjustingtheframestand 24
- Adjustingthemonitorstand 25
- Adjustingthetransformerstand 26
- Machinetypeandmodellabel 27
- 16ThinkCentreE93zUserGuide 28
- Chapter2.Usingyourcomputer 29
- Usingthekeyboard 30
- UsingWindowsshortcutkeys 30
- Usingthewheelmouse 30
- Adjustingaudio 30
- Aboutyourcomputeraudio 31
- UsingCDsandDVDs 31
- PlayingaCDorDVD 32
- RecordingaCDorDVD 33
- 22ThinkCentreE93zUserGuide 34
- Chapter3.Youandyourcomputer 35
- Glareandlighting 36
- Aircirculation 36
- Registeringyourcomputer 37
- Voltage-selectionswitch 37
- Replacementpowercords 38
- Chapter4.Security 39
- Usingpasswords 40
- BIOSpasswords 40
- Windowspasswords 41
- Usingandunderstandingrewalls 41
- Protectingdataagainstviruses 41
- 30ThinkCentreE93zUserGuide 42
- Installingorreplacinghardware 43
- Installingexternaloptions 43
- Attention: 44
- Figure9.Removingtheframestand 44
- Replacingthekeyboardormouse 48
- Replacingthewirelesskeyboard 48
- Replacingthewirelessmouse 49
- Obtainingdevicedrivers 51
- 40ThinkCentreE93zUserGuide 52
- Chapter6.Recoveryinformation 53
- Creatingrecoverymedia 54
- Usingrecoverymedia 54
- Performingabackupoperation 54
- Performingarecoveryoperation 55
- Creatingandusingarescuemedium 56
- Reinstallingsoftwareprograms 58
- Reinstallingdevicedrivers 58
- Solvingrecoveryproblems 58
- 48ThinkCentreE93zUserGuide 60
- Viewingandchangingsettings 61
- Passwordconsiderations 62
- Power-OnPassword 62
- AdministratorPassword 62
- HardDiskPassword 62
- Enablingordisablingadevice 63
- Selectingastartupdevice 63
- EnablingErPcompliancemode 64
- ExitingtheSetupUtilityprogram 64
- 54ThinkCentreE93zUserGuide 66
- Usingsystemprograms 67
- Chapter9.Preventingproblems 69
- UsingSystemUpdate 70
- Cleaningyourcomputer 71
- Goodmaintenancepractices 72
- Movingyourcomputer 72
- Basictroubleshooting 73
- Troubleshootingprocedure 74
- Troubleshooting 74
- Audioproblems 75
- CDproblems 76
- DVDproblems 77
- DVDmoviewillnotplay 78
- Playbackisverysloworchoppy 78
- Intermittentproblems 79
- Monitorproblems 80
- Networkingproblems 82
- AwirelessLANproblem 84
- AwirelessWANproblem 84
- Bluetoothproblem 84
- Optionproblems 85
- Performanceandlockupproblems 85
- Printerproblems 87
- Serialportproblems 88
- Softwareproblems 88
- USBproblems 89
- LenovoSolutionCenter 89
- 78ThinkCentreE93zUserGuide 90
- LenovoSupportWebsite 92
- Helpandservice 92
- Callingforservice 92
- Usingotherservices 93
- Purchasingadditionalservices 93
- 82ThinkCentreE93zUserGuide 94
- AppendixA.Notices 95
- Trademarks 96
- Exportclassicationnotice 97
- Electronicemissionsnotices 97
- Eurasiancompliancemark 99
- 88ThinkCentreE93zUserGuide 100
- ImportantWEEEinformation 101
- RecyclinginformationforJapan 101
- RecyclinginformationforBrazil 102
- 92ThinkCentreE93zUserGuide 104
- EuropeanUnionRoHS 105
- ChinaRoHS 105
- TurkishRoHS 105
- UkraineRoHS 106
- IndiaRoHS 106
- AppendixE.ChinaEnergyLabel 107
- 96ThinkCentreE93zUserGuide 108
- ©CopyrightLenovo2013 109
- 98ThinkCentreE93zUserGuide 110
- 100ThinkCentreE93zUserGuide 112
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