Lenovo ThinkPad T420s User manual

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UserGuide
ThinkPadT420sandT420si
Notes:Beforeusingthisinformationandtheproductitsupports,besuretoreadthefollowing:
SafetyandWarrantyGuide
RegulatoryNotice
“Importantsafetyinformation”onpagevi
AppendixC“Notices”onpage225
TheSafetyandWarrantyGuideandtheRegulatoryNoticehavebeenuploadedontheWebsite.Toreferto
them,gotohttp://www.lenovo.com/support,andthenclickUserguides&manuals.
SecondEdition(December2011)
©CopyrightLenovo2011.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration
“GSAcontract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.GS-35F-05925.
Contents
Readthisrst..............v
Importantsafetyinformation..........vi
Conditionsthatrequireimmediateaction..vii
Safetyguidelines............vii
Chapter1.Productoverview......1
Locatingcomputercontrols,connectors,and
indicators..................1
Frontview................2
Right-sideview..............5
Left-sideview..............6
Bottomview...............7
RearView................9
Statusindicators............10
Locatingimportantproductinformation.....13
Machinetypeandmodellabel.......13
FCCIDandICCerticationnumberlabel..14
CerticateofAuthenticitylabel......15
Features.................15
Specications...............17
Operatingenvironment...........17
ThinkVantageTechnologiesandsoftware....18
AccessingapplicationsinWindows7....18
AccessConnections..........20
ActiveProtectionSystem.........20
ClientSecuritySolution.........20
FingerprintSoftware...........21
LenovoSolutionCenter.........21
LenovoThinkVantageTools........21
LenovoThinkVantageToolbox.......21
MessageCenterPlus..........22
PasswordManager...........22
PowerManager............22
PresentationDirector..........22
ProductRecovery...........23
RescueandRecovery..........23
SimpleTap..............23
SystemUpdate............23
ThinkVantageGPS...........23
ThinkVantageProductivityCenter.....24
Chapter2.Usingyourcomputer...25
Registeryourcomputer...........25
Frequentlyaskedquestions.........25
Specialkeysandbuttons..........27
ThinkVantagebutton..........27
Numerickeypad............27
Functionkeycombinations........28
Volumeandmutebuttons........32
WindowskeyandApplicationkey.....33
UsingtheUltraNavpointingdevice.......34
UsingtheTrackPointpointingdevice....34
Usingthetouchpad...........36
BehavioroftheUltraNavandanexternal
mouse................37
AddingtheUltraNavicontothesystemtray.37
Touchpanel..............38
Powermanagement............38
Checkingbatterystatus.........39
Usingtheacpoweradapter........39
Chargingthebattery..........40
Maximizingbatterylife..........40
Managingyourbatterypower.......40
Power-savingmodes..........40
Handlingthebattery...........42
Connectingtothenetwork..........43
Ethernetconnections..........43
Wirelessconnections..........43
Usingaprojectororexternaldisplay......51
Changingdisplaysettings........51
Connectingaprojectororexternaldisplay..52
Settingupapresentation.........56
Usingdualdisplays...........57
UsingtheNVIDIAOptimusGraphicsfeature...59
Usingaudiofeatures............59
Usinganintegratedcamera.........60
UsingtheThinkLightfeature.........61
Usingtheopticaldrive...........61
Usingthemediacardreader.........61
InsertinganExpressCard,aashmediacard,
orasmartcard.............62
RemovinganExpressCard,aashmediacard
orasmartcard.............62
Chapter3.Youandyourcomputer..65
Accessibilityandcomfort..........65
Ergonomicinformation..........65
Adjustingyourcomputertotyou.....66
Accessibilityinformation.........67
FullScreenMagnierfunction.......67
Travelingwithyourcomputer.........68
Traveltips...............68
Travelaccessories...........68
©CopyrightLenovo2011
i
Chapter4.Security..........71
Attachingamechanicallock.........71
Usingpasswords..............71
Passwordsandsleep(standby)mode....72
Typingpasswords...........72
Power-onpassword...........72
Harddiskpasswords..........73
Supervisorpassword..........75
Harddisksecurity.............77
Settingthesecuritychip...........78
Usingangerprintreader..........79
Noticeondeletingdatafromyourharddiskdrive
orsolidstatedrive.............82
Usingandunderstandingrewalls.......82
Protectingdataagainstviruses........83
Chapter5.Recoveryoverview....85
Creatingandusingrecoverymedia......85
Creatingrecoverymedia.........86
Usingrecoverymedia..........86
Performingbackupandrecoveryoperations...87
Performingabackupoperation......87
Performingarecoveryoperation......87
UsingtheRescueandRecoveryworkspace...88
Creatingandusingarescuemedium......89
Creatingarescuemedium........89
Usingarescuemedium.........89
Reinstallingpreinstalledapplicationsanddevice
drivers..................90
Solvingrecoveryproblems..........91
Chapter6.Replacingdevices.....93
Staticelectricityprevention..........93
Replacingmemory.............93
Replacingthebackupbattery.........96
Replacingthebattery............97
Replacingtheharddiskdrive.........99
Replacingthekeyboard...........102
ReplacingthemSATAsolidstatedrive.....107
ReplacingthePCIExpressMiniCardforwireless
LAN/WiMAXconnection...........110
ReplacingthePCIExpressMiniCardforWireless
WAN..................119
ReplacingtheSIMcard...........123
Replacingthesolidstatedrive........124
Chapter7.Enhancingyour
computer..............129
FindingThinkPadoptions..........129
UsingtheSerialUltrabaySlim.........129
Replacingthedevice..........129
Performingahotswap..........130
Performingawarmswap.........131
Insertingtheharddiskdriveintothe
adapter................133
Insertingtheharddiskdriveadapterintothe
bay.................135
ThinkPadPortReplicatorSeries3,ThinkPadMini
DockSeries3,ThinkPadMiniDockPlusSeries3,
andThinkPadMiniDockPlusSeries3(170W)..136
Frontview...............136
Rearview...............139
AttachingaThinkPadPortReplicatorSeries3,
ThinkPadMiniDockSeries3,ThinkPadMini
DockPlusSeries3,orThinkPadMiniDock
PlusSeries3(170W)..........142
DetachingaThinkPadPortReplicatorSeries
3,ThinkPadMiniDockSeries3,ThinkPad
MiniDockPlusSeries3,ortheThinkPadMini
DockPlusSeries3(170W)........144
Securityfeature............146
Usingthesystemlockkey........148
Chapter8.Advanced
conguration............149
Installinganewoperatingsystem.......149
Beforeyoubegin............149
InstallingWindows7..........150
InstallingWindowsVista.........151
InstallingWindowsXP..........152
Installingdevicedrivers...........155
Installingthedriverforthe4-in-1MediaCard
Reader................155
InstallingthedriverforUSB3.0......155
InstallingThinkPadMonitorFileforWindows
2000/XP/Vista/7............155
ThinkPadSetup..............157
Congmenu..............158
Dateandtimemenu...........159
Securitymenu.............159
Startupmenu.............160
Restartmenu.............162
ThinkPadSetupitems..........162
UpdatingyoursystemUEFIBIOS.....172
Usingsystemmanagement..........172
Systemmanagement..........172
Settingmanagementfeatures.......173
Chapter9.Preventingproblems..175
Generaltipsforpreventingproblems......175
Makingsuredevicedriversarecurrent.....176
GettingthelatestdriversfromtheWebsite..176
GettingthelatestdriversusingSystem
Update................176
Takingcareofyourcomputer.........177
iiUserGuide
Cleaningthecoverofyourcomputer....178
Chapter10.Troubleshooting
computerproblems.........181
Diagnosingproblems............181
Troubleshooting..............182
Computerstopsresponding.......182
Spillsonthekeyboard..........183
Errormessages............183
Errorswithoutmessages.........185
Beeperrors..............186
Memoryproblems...........187
Networking..............187
Keyboardandotherpointingdevices....191
Displayandmultimediadevices......193
Fingerprintreaderproblems........202
Batteryandpower...........203
Drivesandotherstoragedevices.....206
Softwareproblems...........208
Portsandconnectors..........209
UniversalSerialBusproblems.......209
Adockingstationorportreplicator
problem...............209
Chapter11.Gettingsupport....211
BeforeyoucontactLenovo..........211
Registeryourcomputer.........211
Downloadsystemupdates........211
Recordinformation...........211
Gettinghelpandservice...........212
Usingdiagnosticprograms........212
LenovoSupportWebsite.........212
CallingLenovo.............212
Purchasingadditionalservices........213
AppendixA.Regulatory
information.............215
Wirelessrelatedinformation.........215
LocationoftheUltraConnectwireless
antennas...............216
Locatingwirelessregulatorynotices....217
Exportclassicationnotice..........218
Electronicemissionnotices..........218
FederalCommunicationsCommission
DeclarationofConformity........218
IndustryCanadaClassBemissioncompliance
statement...............218
EuropeanUnion-Compliancetothe
ElectromagneticCompatibilityDirective...218
GermanClassBcompliancestatement...219
KoreaClassBcompliancestatement....219
JapaneseVCCIClassBstatement.....220
Japancompliancestatementforproducts
whichconnecttothepowermainswith
ratedcurrentlessthanorequalto20Aper
phase................220
Lenovoproductserviceinformationfor
Taiwan................220
AppendixB.WEEEandrecycling
statements.............221
EUWEEEstatements............221
Japanrecyclingstatements.........221
BatteryrecyclinginformationforBrazil.....222
BatteryrecyclinginformationforTaiwan.....222
BatteryrecyclinginformationforEuropean
Union..................223
BatteryrecyclinginformationforUnitedStatesand
Canada.................223
AppendixC.Notices.........225
Trademarks................226
©CopyrightLenovo2011
iii
ivUserGuide
Readthisrst
Besuretofollowtheimportanttipsgivenheretocontinuetogetthemostuseandenjoymentoutofyour
computer.Failuretodosomightleadtodiscomfortorinjury,orcauseyourcomputertofail.
Protectyourselffromtheheatthatyourcomputergenerates.
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.
Donotplacetheacpoweradapterincontactwithanypartofyourbody
whileitisinuse.
Neveruseittowarmyourbody.
Preventyourcomputerfromgettingwet.
Toavoidspillsandthedangerofelectricalshock,keepliquidsawayfrom
yourcomputer.
Protectthecablesfrombeingdamaged.
Applyingstrongforcetocablesmaydamageorbreakthem.
Routecommunicationlines,orthecablesofanacpoweradapter,amouse,a
keyboard,aprinter,oranyotherelectronicdevice,sothattheycannotbe
walkedon,trippedover,pinchedbyyourcomputerorotherobjects,orin
anywaysubjectedtotreatmentthatcouldinterferewiththeoperationof
yourcomputer.
©CopyrightLenovo2011
v
Protectyourcomputeranddatawhenmovingit.
Beforemovingacomputerequippedwithaharddiskdrive,dooneofthe
following,andmakesurethatthepowerswitchisofforisblinking:
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:Readimportantsafetyinformationrst.
Thisinformationcanhelpyousafelyuseyournotebookpersonalcomputer.Followandretainallinformation
includedwithyourcomputer.Theinformationinthisdocumentdoesnotalterthetermsofyourpurchase
agreementortheLenovoLimitedWarranty.Formoreinformation,seetheSafetyandWarrantyGuide
camewithyourcomputer.
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.
Serviceandupgrades
DonotattempttoserviceaproductyourselfunlessinstructedtodosobytheCustomerSupportCenteror
yourdocumentation.OnlyuseaServiceProviderwhoisapprovedtorepairyourparticularproduct.
Note:Somecomputerpartscanbeupgradedorreplacedbythecustomer.Upgradestypicallyare
referredtoasoptions.ReplacementpartsapprovedforcustomerinstallationarereferredtoasCustomer
ReplaceableUnits,orCRUs.Lenovoprovidesdocumentationwithinstructionswhenitisappropriatefor
customerstoinstalloptionsorreplaceCRUs.Youmustcloselyfollowallinstructionswheninstallingor
replacingparts.TheOffstateofapowerindicatordoesnotnecessarilymeanthatvoltagelevelsinsidea
©CopyrightLenovo2011
vii
productarezero.Beforeyouremovethecoversfromaproductequippedwithapowercord,alwaysmake
surethatthepoweristurnedoffandthattheproductisunpluggedfromanypowersource.Ifyouhave
anyquestionsorconcerns,contacttheCustomerSupportCenter.
Althoughtherearenomovingpartsinyourcomputerafterthepowercordhasbeendisconnected,the
followingwarningsarerequiredforyoursafety.
CAUTION:
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.
DonotuseanypoweradapterthatshowscorrosionattheACinputpinsorshowssignsof
overheating(suchasdeformedplastic)attheACinputoranywhereonthepoweradapter.
Donotuseanypowercordswheretheelectricalcontactsoneitherendshowsignsofcorrosionor
overheatingorwherethepowercordappearstohavebeendamagedinanyway.
viiiUserGuide
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.
Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabel
attached.Therearenoserviceablepartsinsidethesecomponents.Ifyoususpectaproblemwith
oneoftheseparts,contactaservicetechnician.
©CopyrightLenovo2011
ix
Externaldevices
CAUTION:
DonotconnectordisconnectanyexternaldevicecablesotherthanUniversalSerialBus(USB)
cableswhilethecomputerpowerison;otherwise,youmightdamageyourcomputer.T oavoid
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.See
http://www.dtsc.ca.gov/hazardouswaste/perchlorate.
©CopyrightLenovo2011
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.
Airowtemperaturesintothecomputershouldnotexceed35°C(95°F).
xiiUserGuide
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.
Useofcontrolsoradjustmentsorperformanceofproceduresotherthanthosespeciedherein
mightresultinhazardousradiationexposure.
©CopyrightLenovo2011
xiii
DANGER
SomelaserproductscontainanembeddedClass3AorClass3Blaserdiode.Notethefollowing.
Laserradiationwhenopen.Donotstareintothebeam,donotviewdirectlywithoptical
instruments,andavoiddirectexposuretothebeam.
Liquidcrystaldisplay(LCD)notice
CAUTION:
Forproductswithmercury-containinguorescentlamps(i.e.,non-LED)
Theuorescentlampintheliquidcrystaldisplaycontainsmercury;disposeaccordingtolocal,
state,orfederallaws.
TheLCDismadeofglass,androughhandlingordroppingthecomputercancausetheLCDto
break.IftheLCDbreaksandtheinternaluidgetsintoyoureyesoronyourhands,immediately
washtheaffectedareaswithwaterforatleast15minutes;ifanysymptomsarepresentafter
washing,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.
©CopyrightLenovo2011
xv
xviUserGuide
Chapter1.Productoverview
Thischapterprovidesinformationaboutthelocationsofconnectors,locatingimportantproductinformation,
computerfeatures,specications,operatingenvironment,andpreinstalledsoftwareprograms.
Thischaptercontainsthefollowingtopics:
“Locatingcomputercontrols,connectors,andindicators”onpage1
“Locatingimportantproductinformation”onpage13
“Features”onpage15
“Specications”onpage17
“Operatingenvironment”onpage17
“ThinkVantageTechnologiesandsoftware”onpage18
Locatingcomputercontrols,connectors,andindicators
Thissectionintroducesyoutothehardwarefeaturesofyourcomputer,andthengivesyouthebasic
informationyou'llneedtostarttakingadvantageofitsfunctions.
“Frontview”onpage2
“Right-sideview”onpage5
“Left-sideview”onpage6
“RearView”onpage9
“Bottomview”onpage7
“Statusindicators”onpage10
©CopyrightLenovo2011
1
Frontview
Figure1.ThinkPadT420s/T420sifrontview
1Computerdisplay
2Powerswitch
3ThinkVantagebutton4TrackPointbuttons
5TrackPointpointingstick6Volumecontrolbuttons
7Systemandpower-statusindicators8UltraConnectwirelessantennas(left)
9Built-inmicrophone(left)
10Integratedcamera
11ThinkLight
12Built-inmicrophone(right)
13UltraConnectwirelessantennas(right)14Built-instereospeaker(right)
15ForwardandBackkeys16Fingerprintreader
17Bluetoothantenna18Touchpad
19Touchpadbuttons20Fnkey
21CapsLockindicator22Built-instereospeaker(left)
1Computerdisplay
Thehigh-resolution,thin-lmtransistor(TFT)displayprovidesclearandbrillianttextandgraphics.
Fordetails,refertotheinstructionsin“Changingdisplaysettings”onpage51
.
2Powerswitch
Usethepowerswitchtoturnonthecomputer.Toturnoffyourcomputer,usetheStartmenushutdown
options.
Ifyoucannotturnoffthecomputerbythismethod,pressandholdthepowerswitchfor2seconds.
2UserGuide
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Lenovo ThinkPad T420s User manual

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