Lenovo ThinkPad L421 User manual

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Notebooks
Type
User manual

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UserGuide
ThinkPadL420,L421,andL520
Notes:Beforeusingthisinformationandtheproductitsupports,besuretoreadthefollowing:
SafetyandWarrantyGuide
ThinkPadRegulatoryNotice
“Importantsafetyinformation”onpagevi
AppendixC“Notices”onpage201
TheSafetyandWarrantyGuideandtheRegulatoryNoticehavebeenuploadedontheWebsite.Toreferto
them,gotohttp://www.lenovo.com/support,andthenclickUserGuides&Manuals.
ThirdEdition(May2012)
©CopyrightLenovo2012.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration
“GSAcontract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.GS-35F-05925.
Contents
Readthisrst..............v
Importantsafetyinformation..........vi
Conditionsthatrequireimmediateaction..vii
Safetyguidelines............vii
Chapter1.ProductOverview......1
Locatingcomputercontrols,connectors,features,
andindicators................1
Frontview................2
Right-sideview..............4
Left-sideview..............5
Bottomview...............7
Rearview................8
Statusindicators.............9
Locatingimportantproductinformation.....11
Machinetypeandmodellabel.......11
FCCIDandICCerticationnumberlabel..11
CerticateofAuthenticitylabel......13
Features.................13
Specications...............14
Operatingenvironment...........15
ThinkVantageTechnologiesandsoftware....16
AccessingapplicationsinWindows7....16
AccessConnections..........17
ActiveProtectionSystem.........18
FingerprintSoftware...........18
LenovoSolutionCenter.........18
LenovoThinkVantageTools........18
LenovoThinkVantageToolbox.......19
MessageCenterPlus..........19
PasswordManager...........19
PowerManager............19
ProductRecovery...........19
PresentationDirector..........20
RescueandRecovery..........20
SimpleTap..............20
SystemUpdate............20
ThinkVantageGPS...........20
ThinkVantageProductivityCenter.....21
Chapter2.Usingyourcomputer...23
Registeryourcomputer...........23
Frequentlyaskedquestions.........23
Specialkeysandbuttons..........25
ThinkVantagebutton..........25
Numerickeypad............25
Functionkeycombinations........27
Volumeandmutebuttons........30
WindowskeyandApplicationkey.....31
UsingtheUltraNavpointingdevice.......32
UsingtheTrackPointpointingdevice....33
Usingthetouchpad...........34
BehavioroftheUltraNavandanexternal
mouse................35
AddingtheUltraNavicontothesystemtray.35
Powermanagement............36
Checkingbatterystatus.........36
Usingtheacpoweradapter........36
Chargingthebattery..........37
Maximizingbatterylife..........37
Managingyourbatterypower.......37
Power-savingmodes..........37
Handlingthebattery...........39
Connectingtothenetwork..........40
Ethernetconnections..........40
Wirelessconnections..........40
Usingaprojectororexternaldisplay......48
Changingdisplaysettings........48
Connectingaprojectororexternaldisplay..49
Settingupapresentation.........53
Usingdualdisplays...........54
Usingacolorprole............55
Usingaudiofeatures............56
Usinganintegratedcamera.........56
Usingopticaldrive.............57
Usingthemediacardreader.........57
InsertinganExpressCard,aSmartcard,ora
FlashMediaCard............58
RemovinganExpressCard,aSmartcard,ora
FlashMediaCard............59
Chapter3.Youandyourcomputer..61
Accessibilityandcomfort..........61
Ergonomicinformation..........61
Adjustingyourcomputertotyou.....62
Accessibilityinformation.........63
FullScreenMagnierfunction.......63
Travelingwithyourcomputer.........64
Traveltips...............64
Travelaccessories...........64
Chapter4.Security..........67
Attachingamechanicallock.........67
Usingpasswords..............67
©CopyrightLenovo2012
i
Passwordsandsleep(standby)mode....68
UsingPassphrase...........68
Power-onpassword...........70
Harddiskpasswords..........71
Supervisorpassword..........73
Harddisksecurity.............75
Settingthesecuritychip...........75
Usingangerprintreader..........76
Noticeondeletingdatafromyourharddiskdrive
orsolidstatedrive.............78
Usingandunderstandingrewalls.......79
Protectingdataagainstviruses........79
Chapter5.Recoveryoverview....81
Creatingandusingrecoverymedia......81
Creatingrecoverymedia.........82
Usingrecoverymedia..........82
Performingbackupandrecoveryoperations...83
Performingabackupoperation......83
Performingarecoveryoperation......83
UsingtheRescueandRecoveryworkspace...84
Creatingandusingarescuemedium......85
Creatingarescuemedium........85
Usingarescuemedium.........86
Reinstallingpreinstalledapplicationsanddevice
drivers..................86
Solvingrecoveryproblems..........87
Chapter6.Replacingdevices.....89
Staticelectricityprevention..........89
Replacingthebattery............89
Replacingthememory...........91
Replacingtheharddiskdrive.........93
Replacingthesolidstatedrive........97
InstallingandreplacingthemSATAsolidstate
drive...................101
Replacingtheopticaldrive..........103
ReplacingtheSIMcard...........104
Replacingthepalmrest...........106
ReplacingthePCIExpressMiniCardforwireless
LAN/WiMAXconnection...........110
InstallingandreplacingthePCIExpressMiniCard
forwirelessWANconnection.........111
Replacingtheintegratedcamera.......114
Chapter7.Enhancingyour
computer..............119
FindingThinkPadoptions..........119
ThinkPadportreplicatoranddockingstation...119
Frontview...............120
Rearview...............122
AttachingaThinkPadportreplicatoror
dockingstation.............125
DetachingaThinkPadportreplicatoror
dockingstation.............127
Securityfeature............128
Usingthesystemlockkey........129
Chapter8.Advanced
conguration............131
Installinganewoperatingsystem.......131
Beforeyoubegin............131
InstallingWindows7..........132
InstallingWindowsVista.........132
InstallingWindowsXP..........133
Installingdevicedrivers...........135
Installingdriverforthe4-in-1Mediacard
reader................135
InstallingThinkPadMonitorFileforWindows
2000/XP/Vista/7............136
InstallingIntelChipsetSupportforWindows
2000/XP/Vista/7............137
Installingotherdevicedrivers.......137
BIOSSetupUtility.............138
Congmenu..............139
Dateandtimemenu...........139
Securitymenu.............139
Startupmenu.............140
Restartmenu.............142
BIOSSetupUtilityitems.........143
UpdatingyoursystemBIOS.......148
Usingsystemmanagement..........149
Systemmanagement..........149
Settingmanagementfeatures.......150
Chapter9.Preventingproblems..151
Generaltipsforpreventingproblems......151
Makingsuredevicedriversarecurrent.....152
GettingthelatestdriversfromtheWebsite..152
GettingthelatestdriversusingThinkVantage
SystemUpdate............152
Takingcareofyourcomputer.........153
Cleaningthecoverofyourcomputer....154
Chapter10.Troubleshooting
computerproblems.........157
Diagnosingproblems............157
UsingtheLenovoSolutionCenterprogram..157
UsingLenovoThinkVantageToolbox....157
UsingtheLenovoSupportWebsite....158
Troubleshooting..............158
Computerstopsresponding.......158
Spillsonthekeyboard..........159
iiUserGuide
Errormessagesandbeeperrors......159
Errorswithoutmessages.........161
Memoryproblems...........162
Networking..............163
Keyboardandotherpointingdevices....167
Displayandmultimediadevices......168
Fingerprintreaderproblems........178
Batteryandpower...........178
Drivesandotherstoragedevices.....182
Softwareproblems...........184
Portsandconnectors..........184
Chapter11.Gettingsupport....187
BeforeyoucontactLenovo..........187
Registeryourcomputer.........187
Downloadsystemupdates........187
Recordinformation...........187
Gettinghelpandservice...........188
Usingdiagnosticprograms........188
LenovoSupportWebsite.........188
CallingLenovo.............188
Purchasingadditionalservices........189
AppendixA.Regulatory
information.............191
Wirelessrelatedinformation.........191
LocationoftheUltraConnectwireless
antennas...............192
Locatingwirelessregulatorynotices....193
Exportclassicationnotice..........193
Electronicemissionnotices..........193
FederalCommunicationsCommission
DeclarationofConformity........193
IndustryCanadaClassBemissioncompliance
statement...............194
EuropeanUnion-Compliancetothe
ElectromagneticCompatibilityDirective...194
GermanClassBcompliancestatement...194
KoreaClassBcompliancestatement....195
JapanVCCIClassBcompliancestatement..195
Japancompliancestatementforproducts
whichconnecttothepowermainswith
ratedcurrentlessthanorequalto20Aper
phase................195
Lenovoproductserviceinformationfor
Taiwan................195
Additionalregulatoryinformation.......195
AppendixB.WEEEandrecycling
statements.............197
ImportantWEEEInformation.........197
Japanrecyclingstatements.........197
RecyclinginformationforBrazil........198
BatteryrecyclinginformationfortheUnitedStates
andCanada................198
BatteryrecyclinginformationfortheEuropean
Union..................199
BatteryrecyclinginformationforTaiwan.....199
AppendixC.Notices.........201
Trademarks................202
AppendixD.RestrictionofHazardous
SubstancesDirective(RoHS)....203
ChinaRoHS................203
TurkishRoHS...............203
UkraineRoHS...............203
IndiaRoHS................204
©CopyrightLenovo2012
iii
ivUserGuide
Readthisrst
Besuretofollowtheimportanttipsgivenheretocontinuetogetthemostuseandenjoymentoutofyour
computer.Failuretodosomightleadtodiscomfortorinjury,orcauseyourcomputertofail.
Whenyourcomputeristurnedonorthebatteryischarging,thebase,thepalm
rest,andsomeotherpartsmaybecomehot.Thetemperaturetheyreach
dependsontheamountofsystemactivityandthelevelofchargeinthebattery.
Extendedcontactwithyourbody,eventhroughclothing,couldcause
discomfortorevenaskinburn.
Avoidkeepingyourhands,yourlap,oranyotherpartofyourbodyin
contactwithahotsectionofthecomputerforanyextendedtime.
Periodicallytakehandsfromusingthekeyboardbyliftingyourhandsfrom
thepalmrest.
Protectyourselffromtheheatgeneratedbytheacpoweradapter.
Whentheacpoweradapterisconnectedtoanelectricaloutletandyour
computer,itgeneratesheat.
Extendedcontactwithyourbody,eventhroughclothing,maycauseaskin
burn.
Toavoidspillsandthedangerofelectricalshock,keepliquidsawayfrom
yourcomputer.
Neveruseittowarmyourbody.
Preventyourcomputerfromgettingwet.
Toavoidspillsandthedangerofelectricalshock,keepliquidsawayfrom
yourcomputer.
Protectthecablesfrombeingdamaged.
Applyingstrongforcetocablesmaydamageorbreakthem.
Routecommunicationlines,orthecablesofanacpoweradapter,amouse,a
keyboard,aprinter,oranyotherelectronicdevice,sothattheycannotbe
walkedon,trippedover,pinchedbyyourcomputerorotherobjects,orin
anywaysubjectedtotreatmentthatcouldinterferewiththeoperationof
yourcomputer.
©CopyrightLenovo2012
v
Protectyourcomputeranddatawhenmovingit.
Beforemovingacomputerequippedwithaharddiskdrive,dooneofthe
following,andmakesurethatthe“powerswitch”onpage9
isofforisblinking:
Turnitoff.
PressFn+F4toputitinsleep(standby)mode
PressFn+F12toputitinhibernationmode.
Thiswillhelptopreventdamagetothecomputer,andpossiblelossofdata.
Handleyourcomputergently.
Donotdrop,bump,scratch,twist,hit,vibrate,push,orplaceheavyobjectson
yourcomputer,display,orexternaldevices.
Carryyourcomputercarefully.
Useaqualitycarryingcasethatprovidesadequatecushioningandprotection.
Donotpackyourcomputerinatightlypackedsuitcaseorbag.
Beforeputtingyourcomputerinacarryingcase,makesurethatitisoff,insleep
(standby)mode(Fn+F4),orinhibernationmode(Fn+F12).Donotputacomputer
inacarryingcasewhileitisturnedon.
Importantsafetyinformation
Note:Readtheimportantsafetyinformationrst.
Thisinformationcanhelpyousafelyuseyournotebookpersonalcomputer.Followandretainallinformation
includedwithyourcomputer.Theinformationinthisdocumentdoesnotalterthetermsofyourpurchase
agreementortheLenovo
®
LimitedWarranty.Formoreinformation,seetheSafetyandWarrantyGuide
camewithyourcomputer.ThelatestSafetyandWarrantyGuidehasbeenuploadedontheWebsite
http://www.lenovo.com/support.
Customersafetyisimportant.Ourproductsaredevelopedtobesafeandeffective.However,personal
computersareelectronicdevices.Powercords,poweradapters,andotherfeaturescancreatepotential
safetyrisksthatcanresultinphysicalinjuryorpropertydamage,especiallyifmisused.Toreducethese
risks,followtheinstructionsincludedwithyourproduct,observeallwarningsontheproductandinthe
operatinginstructions,andreviewtheinformationincludedinthisdocumentcarefully.Bycarefullyfollowing
theinformationcontainedinthisdocumentandprovidedwithyourproduct,youcanhelpprotectyourself
fromhazardsandcreateasafercomputerworkenvironment.
Note:Thisinformationincludesreferencestopoweradaptersandbatteries.Inadditiontonotebook
computers,someproducts(suchasspeakersandmonitors)shipwithexternalpoweradapters.Ifyouhave
suchaproduct,thisinformationappliestoyourproduct.Inaddition,computerproductscontainacoin-sized
internalbatterythatprovidespowertothesystemclockevenwhenthecomputerisunplugged,sothe
batterysafetyinformationappliestoallcomputerproducts.
viUserGuide
Conditionsthatrequireimmediateaction
Productscanbecomedamagedduetomisuseorneglect.Someproductdamageisseriousenough
thattheproductshouldnotbeusedagainuntilithasbeeninspectedand,ifnecessary,repairedby
anauthorizedservicer.
Aswithanyelectronicdevice,paycloseattentiontotheproductwhenitisturnedon.Onveryrare
occasions,youmightnoticeanodororseeapuffofsmokeorsparksventfromyourproduct.Oryou
mighthearsoundslikepopping,crackingorhissing.Theseconditionsmightmerelymeanthatan
internalelectroniccomponenthasfailedinasafeandcontrolledmanner.Or,theymightindicate
apotentialsafetyissue.However,donottakerisksorattempttodiagnosethesituationyourself.
ContacttheCustomerSupportCenterforfurtherguidance.ForalistofServiceandSupportphone
numbers,seethefollowingWebsite:
http://www.lenovo.com/support/phone
Frequentlyinspectyourcomputeranditscomponentsfordamageorwearorsignsofdanger.Ifyou
haveanyquestionabouttheconditionofacomponent,donotusetheproduct.ContacttheCustomer
SupportCenterortheproductmanufacturerforinstructionsonhowtoinspecttheproductand
haveitrepaired,ifnecessary.
Intheunlikelyeventthatyounoticeanyofthefollowingconditions,orifyouhaveanysafetyconcerns
withyourproduct,stopusingtheproductandunplugitfromthepowersourceandtelecommunication
linesuntilyoucanspeaktotheCustomerSupportCenterforfurtherguidance.
Powercords,plugs,poweradapters,extensioncords,surgeprotectors,orpowersuppliesthatare
cracked,broken,ordamaged.
Signsofoverheating,smoke,sparks,orre.
Damagetoabattery(suchascracks,dents,orcreases),dischargefromabattery,orabuildupofforeign
substancesonthebattery.
Acracking,hissingorpoppingsound,orstrongodorthatcomesfromtheproduct.
Signsthatliquidhasbeenspilledoranobjecthasfallenontothecomputerproduct,thepowercordor
poweradapter.
Thecomputerproduct,powercord,orpoweradapterhasbeenexposedtowater.
Theproducthasbeendroppedordamagedinanyway.
Theproductdoesnotoperatenormallywhenyoufollowtheoperatinginstructions.
Note:Ifyounoticetheseconditionswithaproduct(suchasanextensioncord)thatisnotmanufacturedfor
orbyLenovo,stopusingthatproductuntilyoucancontacttheproductmanufacturerforfurtherinstructions,
oruntilyougetasuitablereplacement.
Safetyguidelines
Alwaysobservethefollowingprecautionstoreducetheriskofinjuryandpropertydamage.
Formoreinformation,seetheSafetyandWarrantyGuidecamewithyourcomputer.ThelatestSafetyand
WarrantyGuidehasbeenuploadedontheWebsitehttp://www.lenovo.com/support.
Serviceandupgrades
DonotattempttoserviceaproductyourselfunlessinstructedtodosobytheCustomerSupportCenteror
yourdocumentation.OnlyuseaServiceProviderwhoisapprovedtorepairyourparticularproduct.
Note:Somecomputerpartscanbeupgradedorreplacedbythecustomer.Upgradestypicallyare
referredtoasoptions.ReplacementpartsapprovedforcustomerinstallationarereferredtoasCustomer
ReplaceableUnits,orCRUs.Lenovoprovidesdocumentationwithinstructionswhenitisappropriatefor
©CopyrightLenovo2012
vii
customerstoinstalloptionsorreplaceCRUs.Youmustcloselyfollowallinstructionswheninstallingor
replacingparts.TheOffstateofapowerindicatordoesnotnecessarilymeanthatvoltagelevelsinsidea
productarezero.Beforeyouremovethecoversfromaproductequippedwithapowercord,alwaysmake
surethatthepoweristurnedoffandthattheproductisunpluggedfromanypowersource.Formore
informationonCRUs,refertotheReplacingdevicesforthisproduct.Ifyouhaveanyquestionsorconcerns,
contacttheCustomerSupportCenter.
Althoughtherearenomovingpartsinyourcomputerafterthepowercordhasbeendisconnected,the
followingwarningsarerequiredforyoursafety.
DANGER
Hazardousmovingparts.Keepngersandotherbodypartsaway.
CAUTION:
BeforereplacinganyCRUs,turnoffthecomputerandwaitthreetoveminutestoletthecomputer
coolbeforeopeningthecover.
Powercordsandpoweradapters
DANGER
Useonlythepowercordsandpoweradapterssuppliedbytheproductmanufacturer.
Thepowercordsshallbesafetyapproved.ForGermany,itshallbeH05VV-F,3G,0.75mm
2
,or
better.Forothercountries,thesuitabletypesshallbeusedaccordingly.
Neverwrapapowercordaroundapoweradapterorotherobject.Doingsocanstressthecordin
waysthatcancausethecordtofray,crack,orcrimp.Thiscanpresentasafetyhazard.
Alwaysroutepowercordssothattheywillnotbewalkedon,trippedover,orpinchedbyobjects.
Protectpowercordandpoweradaptersfromliquids.Forinstance,donotleaveyourpowercordor
poweradapternearsinks,tubs,toilets,oronoorsthatarecleanedwithliquidcleansers.Liquids
cancauseashortcircuit,particularlyifthepowercordorpoweradapterhasbeenstressedby
misuse.Liquidsalsocancausegradualcorrosionofpowercordterminalsand/ortheconnector
terminalsonapoweradapter,whichcaneventuallyresultinoverheating.
Alwaysconnectpowercordsandsignalcablesinthecorrectorderandensurethatallpowercord
connectorsaresecurelyandcompletelypluggedintoreceptacles.
viiiUserGuide
DonotuseanypoweradapterthatshowscorrosionattheACinputpinsorshowssignsof
overheating(suchasdeformedplastic)attheACinputoranywhereonthepoweradapter.
Donotuseanypowercordswheretheelectricalcontactsoneitherendshowsignsofcorrosionor
overheatingorwherethepowercordappearstohavebeendamagedinanyway.
Extensioncordsandrelateddevices
Ensurethatextensioncords,surgeprotectors,uninterruptiblepowersupplies,andpowerstripsthatyouuse
areratedtohandletheelectricalrequirementsoftheproduct.Neveroverloadthesedevices.Ifpowerstrips
areused,theloadshouldnotexceedthepowerstripinputrating.Consultanelectricianformoreinformation
ifyouhavequestionsaboutpowerloads,powerrequirements,andinputratings.
Plugsandoutlets
DANGER
Ifareceptacle(poweroutlet)thatyouintendtousewithyourcomputerequipmentappearstobe
damagedorcorroded,donotusetheoutletuntilitisreplacedbyaqualiedelectrician.
Donotbendormodifytheplug.Iftheplugisdamaged,contactthemanufacturertoobtain
areplacement.
Donotshareanelectricaloutletwithotherhomeorcommercialappliancesthatdrawlargeamounts
ofelectricity;otherwise,unstablevoltagemightdamageyourcomputer,data,orattacheddevices.
Someproductsareequippedwithathree-prongedplug.Thisplugtsonlyintoagrounded
electricaloutlet.Thisisasafetyfeature.Donotdefeatthissafetyfeaturebytryingtoinsertitinto
anon-groundedoutlet.Ifyoucannotinserttheplugintotheoutlet,contactanelectricianforan
approvedoutletadapterortoreplacetheoutletwithonethatenablesthissafetyfeature.Never
overloadanelectricaloutlet.Theoverallsystemloadshouldnotexceed80percentofthebranch
circuitrating.Consultanelectricianformoreinformationifyouhavequestionsaboutpowerloads
andbranchcircuitratings.
Besurethatthepoweroutletyouareusingisproperlywired,easilyaccessible,andlocatedclose
totheequipment.Donotfullyextendpowercordsinawaythatwillstressthecords.
Besurethatthepoweroutletprovidesthecorrectvoltageandcurrentfortheproductyouare
installing.
Carefullyconnectanddisconnecttheequipmentfromtheelectricaloutlet.
Powersupplystatement
DANGER
Neverremovethecoveronapowersupplyoranypartthathasthefollowinglabelattached.
©CopyrightLenovo2012
ix
Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabel
attached.Therearenoserviceablepartsinsidethesecomponents.Ifyoususpectaproblemwith
oneoftheseparts,contactaservicetechnician.
Externaldevices
CAUTION:
DonotconnectordisconnectanyexternaldevicecablesotherthanUniversalSerialBus(USB)and
1394cableswhilethecomputerpowerison;otherwise,youmightdamageyourcomputer.Toavoid
possibledamagetoattacheddevices,waitatleastvesecondsafterthecomputerisshutdownto
disconnectexternaldevices.
Batteries
DANGER
PersonalcomputersmanufacturedbyLenovocontainacoincellbatterytoprovidepowerto
thesystemclock.Inaddition,manymobileproducts,suchasnotebookcomputers,utilizea
rechargeablebatterypacktoprovidesystempowerwheninportablemode.Batteriessuppliedby
Lenovoforusewithyourproducthavebeentestedforcompatibilityandshouldonlybereplaced
withapprovedparts.
Neverattempttoopenorserviceanybattery.Donotcrush,puncture,orincineratebatteriesor
shortcircuitthemetalcontacts.Donotexposethebatterytowaterorotherliquids.Onlyrecharge
thebatterypackstrictlyaccordingtoinstructionsincludedintheproductdocumentation.
Batteryabuseormishandlingcancausethebatterytooverheat,whichcancausegassesorame
to“vent”fromthebatterypackorcoincell.Ifyourbatteryisdamaged,orifyounoticeany
dischargefromyourbatteryorthebuildupofforeignmaterialsonthebatteryleads,stopusingthe
batteryandobtainareplacementfromthebatterymanufacturer.
Batteriescandegradewhentheyareleftunusedforlongperiodsoftime.Forsomerechargeable
batteries(particularlyLithiumIonbatteries),leavingabatteryunusedinadischargedstatecould
increasetheriskofabatteryshortcircuit,whichcouldshortenthelifeofthebatteryandcanalso
poseasafetyhazard.DonotletrechargeableLithium-Ionbatteriescompletelydischargeorstore
thesebatteriesinadischargedstate.
xUserGuide
Rechargeablebatterynotice
DANGER
Donotattempttodisassembleormodifythebatterypack.Attemptingtodosocancausean
explosion,orliquidleakagefromthebatterypack.Abatterypackotherthantheonespeciedby
Lenovo,oradisassembledormodiedbatterypackisnotcoveredbythewarranty.
Iftherechargeablebatterypackisincorrectlyreplaced,thereisdangerofanexplosion.Thebattery
packcontainsasmallamountofharmfulsubstances.Toavoidpossibleinjury:
ReplaceonlywithabatteryofthetyperecommendedbyLenovo.
Keepthebatterypackawayfromre.
Donotexposeittowaterorrain.
Donotattempttodisassembleit.
Donotshort-circuitit.
Keepitawayfromchildren.
Donotdropthebatterypack.
Donotputthebatterypackintrashthatisdisposedofinlandlls.Whendisposingofthebattery,
complywithlocalordinancesorregulations.
Thebatterypackshouldbestoredatroomtemperature,chargedtoapproximately30to50%
ofcapacity.Werecommendthatbatterypackbechargedaboutonceperyeartoprevent
overdischarge.
Lithiumcoincellbatterynotice
DANGER
Dangerofexplosionifbatteryisincorrectlyreplaced.
Whenreplacingthelithiumcoincellbattery,useonlythesameoranequivalenttypethatis
recommendedbythemanufacturer.Thebatterycontainslithiumandcanexplodeifnotproperly
used,handled,ordisposedof.
Donot:
Throworimmerseintowater
Heattomorethan100°C(212°F)
Repairordisassemble
Disposeofthebatteryasrequiredbylocalordinancesorregulations.
ThefollowingstatementappliestousersinthestateofCalifornia,U.S.A.
CaliforniaPerchlorateInformation:
ProductscontainingCR(manganesedioxide)lithiumcoincellbatteriesmaycontainperchlorate.
PerchlorateMaterial-specialhandlingmayapply.Goto:
http://www.dtsc.ca.gov/hazardouswaste/perchlorate.
©CopyrightLenovo2012
xi
Heatandproductventilation
DANGER
Computers,acpoweradapters,andmanyaccessoriescangenerateheatwhenturnedonandwhen
batteriesarecharging.Notebookcomputerscangenerateasignicantamountofheatduetotheir
compactsize.Alwaysfollowthesebasicprecautions:
Whenyourcomputeristurnedonorthebatteryischarging,thebase,thepalmrest,andsome
otherpartsmaybecomehot.Avoidkeepingyourhands,yourlap,oranyotherpartofyour
bodyincontactwithahotsectionofthecomputerforanyextendedlengthoftime.Whenyou
usethekeyboard,avoidkeepingyourpalmsonthepalmrestforaprolongedperiodoftime.
Yourcomputergeneratessomeheatduringnormaloperation.Theamountofheatdependson
theamountofsystemactivityandthebatterychargelevel.Extendedcontactwithyourbody,
eventhroughclothing,couldcausediscomfortorevenaskinburn.Periodicallytakebreaks
fromusingthekeyboardbyliftingyourhandsfromthepalmrest;andbecarefulnottouse
thekeyboardforanyextendedlengthoftime.
Donotoperateyourcomputerorchargethebatterynearammablematerialsorinexplosive
environments.
Ventilationslots,fansand/orheatsinksareprovidedwiththeproductforsafety,comfort,and
reliableoperation.Thesefeaturesmightinadvertentlybecomeblockedbyplacingtheproducton
abed,sofa,carpet,orotherexiblesurface.Neverblock,cover,ordisablethesefeatures.
Whentheacpoweradapterisconnectedtoanelectricaloutletandyourcomputer,itgenerates
heat.Donotplacetheadapterincontactwithanypartofyourbodywhileusingit.Neverusethe
acpoweradaptertowarmyourbody.Extendedcontactwithyourbody,eventhroughclothing,
maycauseaskinburn.
Foryoursafety,alwaysfollowthesebasicprecautionswithyourcomputer:
Keepthecoverclosedwheneverthecomputerispluggedin.
Regularlyinspecttheoutsideofthecomputerfordustaccumulation.
Removedustfromventsandanyperforationsinthebezel.Morefrequentcleaningsmightbe
requiredforcomputersindustyorhigh-trafcareas.
Donotrestrictorblockanyventilationopenings.
Donotoperateyourcomputerinsidefurniture,asthismightincreasetheriskofoverheating.
xiiUserGuide
Airowtemperaturesintothecomputershouldnotexceed35°C(95°F).
Electricalcurrentsafetyinformation
DANGER
Electriccurrentfrompower,telephone,andcommunicationcablesishazardous.
Toavoidashockhazard:
Donotuseyourcomputerduringalightningstorm.
Donotconnectordisconnectanycablesorperforminstallation,maintenance,orreconguration
ofthisproductduringanelectricalstorm.
Connectallpowercordstoaproperlywiredandgroundedelectricaloutlet.
Connecttoproperlywiredoutletsanyequipmentthatwillbeattachedtothisproduct.
Wheneverpossible,useonehandonlytoconnectordisconnectsignalcables.
Neverturnonanyequipmentwhenthereisevidenceofre,water,orstructuraldamage.
Disconnecttheattachedpowercords,batterypack,andallthecablesbeforeyouopenthe
devicecovers,unlessinstructedotherwiseintheinstallationandcongurationprocedures.
Donotuseyoucomputeruntilallinternalpartsenclosuresarefastenedintoplace.Neveruse
thecomputerwheninternalpartsandcircuitsareexposed.
DANGER
Connectanddisconnectcablesasdescribedinthefollowingprocedureswheninstalling,
moving,oropeningcoversonthisproductorattacheddevices.
Toconnect:
1.TurneverythingOFF .
2.First,attachallcablestodevices.
3.Attachsignalcablestoconnectors.
4.Attachpowercordstooutlets.
5.TurndevicesON.
Todisconnect:
1.TurneverythingOFF .
2.First,removepowercordsfromoutlets.
3.Removesignalcablesfromconnectors.
4.Removeallcablesfromdevices.
Thepowercordmustbedisconnectedfromthewalloutletorreceptaclebeforeinstallingallother
electricalcablesconnectedtothecomputer.
Thepowercordmaybereconnectedtothewalloutletorreceptacleonlyafterallotherelectrical
cableshavebeenconnectedtothecomputer.
Lasercompliancestatement
CAUTION:
Whenlaserproducts(suchasCD-ROMs,DVDdrives,beropticdevices,ortransmitters)are
installed,notethefollowing:
Donotremovethecovers.Removingthecoversofthelaserproductcouldresultinexposureto
hazardouslaserradiation.Therearenoserviceablepartsinsidethedevice.
©CopyrightLenovo2012
xiii
Useofcontrolsoradjustmentsorperformanceofproceduresotherthanthosespeciedherein
mightresultinhazardousradiationexposure.
DANGER
SomelaserproductscontainanembeddedClass3AorClass3Blaserdiode.Notethefollowing.
Laserradiationwhenopen.Donotstareintothebeam,donotviewdirectlywithoptical
instruments,andavoiddirectexposuretothebeam.
Liquidcrystaldisplaynotice
CAUTION:
Forproductswithmercury-containinguorescentlamps(i.e.,non-LED)
Theuorescentlampintheliquidcrystaldisplaycontainsmercury;disposeaccordingtolocal,
state,orfederallaws.
TheLiquidcrystaldisplay(LCD)ismadeofglass,androughhandlingordroppingthecomputer
cancausetheLCDtobreak.IftheLCDbreaksandtheinternaluidgetsintoyoureyesoronyour
hands,immediatelywashtheaffectedareaswithwaterforatleast15minutes;ifanysymptoms
arepresentafterwashing,getmedicalcare.
Usingheadphonesorearphones
Ifyourcomputerhasbothaheadphoneconnectorandanaudio-outconnector,alwaysusetheheadphone
connectorforheadphones(alsocalledaheadset)orearphones.
CAUTION:
Excessivesoundpressurefromearphonesandheadphonescancausehearingloss.Adjustmentof
theequalizertomaximumincreasestheearphonesandheadphonesoutputvoltageandthereforethe
soundpressurelevel.
Excessiveuseofheadphonesorearphonesforalongperiodoftimeathighvolumecanbedangerousifthe
outputoftheheadphoneorearphoneconnectorsdonotcomplywithspecicationsofEN50332-2.The
headphoneoutputconnectorofyourcomputercomplieswithEN50332-2Subclause7.Thisspecication
limitsthecomputer’smaximumwidebandtrueRMSoutputvoltageto150mV.Tohelpprotectagainst
hearingloss,ensurethattheheadphonesorearphonesyouusealsocomplywithEN50332-2(Clause7
limits)forawidebandcharacteristicvoltageof75mV.UsingheadphonesthatdonotcomplywithEN
50332-2canbedangerousduetoexcessivesoundpressurelevels.
IfyourLenovocomputercamewithheadphonesorearphonesinthepackage,asaset,thecombinationof
theheadphonesorearphonesandthecomputeralreadycomplieswiththespecicationsofEN50332-1.
Ifdifferentheadphonesorearphonesareused,ensurethattheycomplywithEN50332-1(Clause6.5
LimitationValues).UsingheadphonesthatdonotcomplywithEN50332-1canbedangerousdueto
excessivesoundpressurelevels.
Additionalsafetyinformation
DANGER
Plasticbagscanbedangerous.Keepplasticbagsawayfrombabiesandchildrentoavoiddanger
ofsuffocation.
NoticeforTabletPCusers
SafetyNoticeforusersinAustralia:
xivUserGuide
DANGER
Donotconnectphonelinewhileusingtabletmode.
NoticeforusersintheU.S.A.
ManyPCproductsandaccessoriescontaincords,cablesorwires,suchaspowercordsorcordstoconnect
theaccessorytoaPC.Ifthisproducthassuchacord,cableorwire,thenthefollowingwarningapplies:
WARNING
Handlingthecordonthisproductorcordsassociatedwithaccessoriessoldwiththisproductwillexpose
youtolead,achemicalknowntotheStateofCaliforniatocausecancer,andbirthdefectsorother
reproductiveharm.Washhandsafterhandling.
Savetheseinstructions.
©CopyrightLenovo2012
xv
xviUserGuide
Chapter1.ProductOverview
Thischapterprovidesinformationaboutthelocationsofconnectors,locatingimportantproductinformation,
computerfeatures,specications,operatingenvironment,andpreinstalledsoftwareprograms.
Thischaptercontainsthefollowingtopics:
“Locatingcomputercontrols,connectors,features,andindicators”onpage1
“Locatingimportantproductinformation”onpage11
“Features”onpage13
“Specications”onpage14
“Operatingenvironment”onpage15
“ThinkVantageTechnologiesandsoftware”onpage16
Locatingcomputercontrols,connectors,features,andindicators
Thissectionintroducesyoutothehardwarefeaturesofyourcomputer,andthengivesyouthebasic
informationyou'llneedtostarttakingadvantageofitsfunctions.
“Frontview”onpage2
“Right-sideview”onpage4
“Left-sideview”onpage5
“Rearview”onpage8
“Bottomview”onpage7
“Statusindicators”onpage9
©CopyrightLenovo2012
1
Frontview
Figure1.ThinkPadL420andL520frontview
1Computerdisplay
2Powerswitch
3Built-instereospeakers4TrackPointpointingstick
5TrackPointbuttons6Built-instereospeakers
7UltraConnectwirelessantennas(left)
8Integratedcamera
9Built-inmicrophone
10UltraConnectwirelessantennas(right)
11ThinkVantagebutton
12System-statusindicators
13Fingerprintreader14Power-statusindicators
15Bluetoothantenna
16PCIExpressMiniCardslotforwirelessLAN/WiMAX
17Touchpad18Touchpadbuttons
19Fnkey20Volumecontrolbuttons
1Computerdisplay
Thehigh-resolution,thin-lmtransistor(TFT)displayprovidesclearandbrillianttextandgraphics.
Fordetails,refertotheinstructionsin“Changingdisplaysettings”onpage48.
2Powerswitch
Thepowerswitchislitwheneverthecomputerisonandisnotlitwhenthecomputerisinsleep(standby)
mode.
Usethepowerswitchtoturnonthecomputer.Toturnoffyourcomputer,usetheStartmenushutdown
options.
Ifyoucannotturnoffthecomputerbythismethod,pressandholdthepowerswitchfor2seconds.
2UserGuide
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Lenovo ThinkPad L421 User manual

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