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•Problem:Thescreenstaysonevenafteryouturnoffyourcomputer.
Solution:Pressandholdthepowerbuttonforfoursecondsormoretoturnoffyourcomputer;then
turnitonagain.
•Problem:Missing,discolored,orbrightdotsappearonthescreeneverytimeyouturnonyourcomputer.
Solution:ThisisanintrinsiccharacteristicoftheTFTtechnology.Yourcomputerdisplaycontains
multiplethin-lmtransistors(TFTs).Asmallnumberofmissing,discolored,orbrightdotsonthescreen
mightexistallthetime.
Externalmonitorproblems
•Problem:Theexternalmonitorisblank.
Solution:Tobringuptheimage,pressF7andselectthedesiredmonitor.Iftheproblempersists,do
thefollowing:
1.Connecttheexternalmonitortoanothercomputertomakesurethatitworks.
2.Reconnecttheexternalmonitortoyourcomputer.
3.Refertothemanualshippedwiththeexternalmonitortochecktheresolutionsandrefreshratesthat
aresupported.
–Iftheexternalmonitorsupportsthesameresolutionasthecomputerdisplayorahigherresolution,
viewoutputontheexternalmonitororonboththeexternalmonitorandthecomputerdisplay.
–Iftheexternalmonitorsupportsalowerresolutionthanthecomputerdisplay,viewoutputonthe
externalmonitoronly.(Ifyouviewoutputonboththecomputerdisplayandtheexternalmonitor,
theexternalmonitorscreenwillbeblankordistorted.)
•Problem:Youcannotsetahigherresolutionthanthepresentoneonyourexternalmonitor.
Solution:Makesurethatthemonitortypeandotherinformationiscorrect.Ifnecessary,updatethe
monitordriver.See“Settingtheexternalmonitortype”onpage32
.
•Problem:Thescreenisunreadableordistorted.
Solution:Makesurethat:
–Themonitorinformationiscorrectandtheappropriatemonitortypeisselected.Refertothesolution
totheaboveproblem.
–Makesurethatanappropriaterefreshrateisselectedbydoingthefollowing:
1.Connecttheexternalmonitortothemonitorconnector,andthenconnectthemonitortoan
electricaloutlet.
2.Turnontheexternalmonitorandthecomputer.
3.Right-clickonthedesktop,andclickScreenresolution.
Note:Ifyourcomputercannotdetecttheexternalmonitor,clicktheDetectbutton.
4.Clicktheiconforthedesiredmonitor(theMonitor-2iconisfortheexternalmonitor).
5.ClickAdvancedSettings.
6.ClicktheMonitortab.
7.Selectthecorrectscreenrefreshrate.
•Problem:Wrongcharactersaredisplayedonthescreen.
Solution:Didyoufollowthecorrectprocedurewheninstallingtheoperatingsystemorprogram?Ifyou
did,havetheexternalmonitorserviced.
•Problem:TheExtenddesktopfunctiondoesnotwork.
Solution:EnabletheExtenddesktopfunction.See“Usingdualdisplays”onpage34
.
Chapter10.Troubleshootingcomputerproblems133
- UserGuide 1
- FirstEdition(September2013) 2
- Contents 3
- Readthisrst 7
- Importantsafetyinformation 8
- Safetyguidelines 9
- Powercordsandpoweradapters 10
- Plugsandoutlets 11
- Powersupplystatement 11
- Externaldevices 12
- Generalbatterynotice 12
- Rechargeablebatterynotice 13
- Heatandproductventilation 13
- Lasercompliancestatement 15
- Usingheadphonesorearphones 15
- Additionalsafetyinformation 16
- Chapter1.Productoverview 17
- Right-sideview 19
- 4USBconnector 20
- 5Security-lockslot 20
- Left-sideview 21
- Bottomview 22
- Rearview 23
- Statusindicators 24
- Chapter1.Productoverview9 25
- 1andwirelessWAN 26
- 2installedonyourcomputer 26
- GenuineMicrosoftlabel 27
- Features 27
- Specications 29
- Operatingenvironment 29
- Lenovoprograms 30
- Chapter1.Productoverview15 31
- Lenovoprogramoverview 32
- Chapter1.Productoverview17 33
- Chapter2.Usingyourcomputer 35
- Specialkeys 37
- Windowskey 38
- Chapter2.Usingyourcomputer23 39
- Powermanagement 40
- Checkingthebatterystatus 40
- Usingtheacpoweradapter 41
- Chargingthebattery 41
- Maximizingthebatterylife 42
- Managingthebatterypower 42
- Power-savingmodes 42
- Connectingtothenetwork 43
- Ethernetconnections 43
- Wirelessconnections 43
- UsingthewirelessLANconnection 44
- UsingthewirelessWANconnection 45
- UsingtheBluetoothconnection 46
- Presentationsandmultimedia 47
- Changingdisplaysettings 47
- UsingaDVImonitor 49
- Settingupapresentation 50
- Usingdualdisplays 50
- Usingaudiofeatures 51
- Usingthecamera 51
- Usingtheopticaldrive 52
- Usingaashmediacard 52
- Chapter2.Usingyourcomputer37 53
- 38UserGuide 54
- Chapter3.Youandyourcomputer 55
- Accessibilityinformation 56
- Travelingwithyourcomputer 57
- Traveltips 57
- Travelaccessories 58
- Chapter4.Security 59
- Supervisorpassword 60
- Harddiskpasswords 61
- Harddisksecurity 63
- Settingthesecuritychip 64
- Usingthengerprintreader 65
- IndicatorbehaviorDescription 67
- Usingrewalls 69
- Protectingdataagainstviruses 69
- 54UserGuide 70
- Chapter5.Recoveryoverview 71
- Chapter5.Recoveryoverview57 73
- Creatingandusingarescuemedium 74
- Chapter5.Recoveryoverview59 75
- Solvingrecoveryproblems 76
- Refreshingyourcomputer 76
- Creatingandusingrecoverymedia 77
- Chapter6.Replacingdevices 79
- 1.Removethebatterypack2 80
- Replacingthebasecoverassembly 81
- Chapter6.Replacingdevices67 83
- .Replacingdevices69 85
- Replacingamemorymodule 86
- .Replacingdevices71 87
- 1andtightenthescrews2 88
- Chapter6.Replacingdevices73 89
- Chapter6.Replacingdevices75 91
- Chapter6.Replacingdevices77 93
- 78UserGuide 94
- ReplacingtheUltrabaydevice 95
- 5.RemovetheUltrabaydevice 96
- 80UserGuide 96
- .Replacingdevices81 97
- Replacingthebackupbattery 98
- .Replacingdevices83 99
- Replacingthekeyboard 100
- Chapter6.Replacingdevices85 101
- 86UserGuide 102
- .Replacingdevices87 103
- Chapter6.Replacingdevices89 105
- 90UserGuide 106
- ThinkPaddockingstations 107
- FindingThinkPadoptions 107
- ThinkPadBasicDock 108
- ThinkPadProDock 109
- ThinkPadUltraDock 111
- 1.Thecomputerisattachedtothe 113
- Securityfeatures 115
- 100UserGuide 116
- Chapter8.Advancedconguration 117
- Installingdevicedrivers 119
- UsingtheThinkPadSetupprogram 119
- Mainmenu 120
- Congmenu 120
- .Advancedconguration105 121
- 106UserGuide 122
- .Advancedconguration107 123
- 108UserGuide 124
- DateandTimemenu 125
- Securitymenu 125
- 110UserGuide 126
- .Advancedconguration111 127
- 112UserGuide 128
- .Advancedconguration113 129
- Startupmenu 130
- Restartmenu 131
- UpdatingtheUEFIBIOS 131
- Usingsystemmanagement 132
- Settingmanagementfeatures 132
- 118UserGuide 134
- Chapter9.Preventingproblems 135
- Takingcareofyourcomputer 137
- 124UserGuide 140
- Diagnosingproblems 141
- Troubleshooting 141
- Computerstopsresponding 141
- Spillsonthekeyboard 142
- Errormessages 142
- Errorswithoutmessages 144
- Beeperrors 144
- Memorymoduleproblems 145
- Networkingproblems 145
- AwirelessLANproblem 146
- AwirelessWANproblem 146
- Bluetoothproblems 146
- Keyboardproblems 147
- Computerscreenproblems 148
- Externalmonitorproblems 149
- Audioproblems 150
- Fingerprintreaderproblems 151
- Batteryandpowerproblems 151
- Anacpoweradapterproblem 152
- Powerproblems 152
- Apowerbuttonproblem 153
- Bootproblems 153
- Sleepandhibernationproblems 153
- Harddiskdriveproblems 154
- Asolid-statedriveproblem 154
- Opticaldriveproblems 154
- Asoftwareproblem 155
- AUSBproblem 156
- Adockingstationproblem 156
- Chapter11.Gettingsupport 157
- Usingdiagnosticprograms 158
- LenovoSupportWebsite 158
- CallingLenovo 158
- Purchasingadditionalservices 159
- 144UserGuide 160
- Wirelessrelatedinformation 161
- 3WirelessWANantenna(main) 162
- Exportclassicationnotice 163
- Electronicemissionnotices 163
- Directive 164
- 150UserGuide 166
- ImportantWEEEinformation 167
- RecyclinginformationforJapan 167
- 154UserGuide 170
- EuropeanUnionRoHS 171
- ChinaRoHS 171
- IndiaRoHS 171
- TurkishRoHS 171
- UkraineRoHS 172
- ©CopyrightLenovo2013 173
- AppendixE.Notices 175
- Trademarks 176
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