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•PressFn+F2toconrmwhethertheLCDscreenhasbeenturnedoff.
Iftheproblempersists,followthesolutionto“Thescreenisunreadableordistorted.”onpage53
.
Thescreenisunreadableordistorted.
Makesurethat:
•Thedisplaydevicedriverisinstalledcorrectly.
•Thescreenresolutionandcolorqualityarecorrectlyset.
•Themonitortypeiscorrect.
Incorrectcharactersaredisplayedonthescreen.
Didyouinstalltheoperatingsystemorapplicationprogramcorrectly?Iftheyareinstalledandcongured
correctly,havethecomputerserviced.
WhenIturnonthecomputer,nothingisdisplayedonthescreenandthecomputerdoesnotbeep
whilestartingup.
Makesurethat:
•Thebatteryisinstalledcorrectly.
•Theacpoweradapterisconnectedtothecomputerandthepowercordispluggedintoaworking
electricaloutlet.
•Thecomputeristurnedon.(Pressthepowerbuttonagainforconrmation.)
Iftheseitemsarecorrectlyset,andthescreenremainsblank,havethecomputerserviced.
WhenIturnonthecomputer,onlyawhitecursorisdisplayedonablankscreen.
Restoreyourbackuplesorrestoreyourcomputertothefactorydefaultsettingsusingthepreinstalled
recoveryprogramsonyourcomputer.Iftheproblempersists,havethecomputerserviced.
Myscreengoesblankwhilethecomputerison.
Yourscreensaverorpowermanagementmaybeenabled.Dooneofthefollowingtoexitfromthescreen
saverortoresumefromsleeporhibernationmode:
•PresstheFnkey.
•Pressthepowerbutton.
•PressFn+F2toconrmwhethertheLCDscreenhasbeenturnedoff.
Problemswithdrivesandotherstoragedevices
Thissectionincludesharddiskdriveproblemsandopticaldriveproblems.
Harddiskdriveproblems
Printtheseinstructionsnowandkeepitwithyourcomputerforreferencelater.
Theharddiskdrivemakesarattlingnoiseintermittently.
Therattlingnoisemightbeheard:
•Whentheharddiskdrivebeginsornishesgettingaccesstodata.
•Whenyoucarrytheharddiskdrive.
•Whenyoucarryyourcomputer.
Chapter9.Troubleshootingcomputerproblems53
- UserGuide 1
- FifthEdition(December2012) 2
- ©CopyrightLenovo2012 2
- Contents 3
- Readthisrst 5
- Importantsafetyinformation 6
- Safetyguidelines 7
- Powercordsandpoweradapters 8
- Plugsandoutlets 8
- Powersupplystatement 9
- Externaldevices 9
- Generalbatterynotice 9
- Rechargeablebatterynotice 10
- Lithiumcoincellbatterynotice 10
- Heatandproductventilation 11
- Lasercompliancestatement 12
- Usingheadphonesorearphones 13
- Additionalsafetyinformation 13
- Computerdisplay 15
- Fingerprintreader 15
- Left-sideview 16
- Right-sideview 17
- Frontview 18
- Bottomview 19
- Statusindicators 19
- 1Capslockindicator 20
- 2Numericlockindicator 20
- 3Deviceaccessstatusindicator 20
- Features 21
- Specications 22
- Chapter2.Usingyourcomputer 23
- Tipsonusingyourcomputer 24
- Readingthemanuals 24
- Connectingtopower 24
- Turningonthecomputer 24
- Conguringtheoperatingsystem 24
- Checkingthebatterystatus 25
- Usingtheacpoweradapter 26
- Chargingthebattery 26
- Maximizingthebatterylife 26
- Handlingthebattery 27
- Usingthetouchpad 28
- Usingtherecoverybutton 29
- Usingthekeyboard 29
- Numerickeypad 29
- Functionkeycombinations 30
- Chapter2.Usingyourcomputer17 31
- Connectingtoexternaldevices 32
- Usingthemediacardreader 32
- Wiredconnection 33
- Hardwareconnection 33
- Softwareconguration 34
- Wirelessconnection 34
- 22UserGuide 36
- Chapter4.Youandyourcomputer 37
- Chapter5.Security 39
- 26UserGuide 40
- Chapter6.Recoveryoverview 41
- .Recoveryoverview29 43
- 30UserGuide 44
- Chapter7.Replacingdevices 45
- Replacingthebackupbattery 46
- 1,andthenremovethecover2 47
- Chapter7.Replacingdevices33 47
- Replacingtheharddiskdrive 49
- Chapter7.Replacingdevices37 51
- Replacingamemorymodule 52
- Chapter7.Replacingdevices39 53
- Chapter7.Replacingdevices41 55
- 4andthecardpopsup 56
- Chapter7.Replacingdevices43 57
- Removingtheopticaldrive 58
- 3thatsecurestheopticaldrive 59
- Chapter7.Replacingdevices45 59
- Chapter8.Preventingproblems 61
- Takingcareofyourcomputer 62
- Chapter8.Preventingproblems49 63
- Troubleshooting 65
- Batteryandpowerproblems 65
- Computerscreenproblems 66
- Harddiskdriveproblems 67
- Apasswordproblem 68
- Asoundproblem 69
- Otherproblems 69
- 56UserGuide 70
- Wirelessrelatedinformation 71
- Exportclassicationnotice 72
- Electronicemissionnotices 72
- ChinaWEEEstatement 75
- ImportantWEEEInformation 75
- Japanrecyclingstatements 75
- RecyclinginformationforBrazil 76
- 64UserGuide 78
- ChinaRoHS 79
- TurkishRoHS 79
- UkraineRoHS 79
- IndiaRoHS 80
- AppendixD.Notices 81
- ENERGYSTARmodelinformation 82
- Trademarks 82
- AppendixD.Notices69 83
- 70UserGuide 84
- 72UserGuide 86
- PartNumber: 88
- PrintedinChina 88
- (1P)P/N: 88
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