Lenovo 41786UU User manual

UserGuide

ThinkPadT420andT420i

Notes:Beforeusingthisinformationandtheproductitsupports,besuretoreadthefollowing:

•SafetyandWarrantyGuide

•RegulatoryNotice

•“Importantsafetyinformation”onpagevi

•AppendixC“Notices”onpage249

TheSafetyandWarrantyGuideandtheRegulatoryNoticehavebeenuploadedontheWebsite.Toreferto

them,gotohttp://www.lenovo.com/support,andthenclickUserguides&manuals.

SecondEdition(October2011)

©CopyrightLenovo2011.

LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration

“GSA”contract,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..............7

Bottomview...............8

Rearview...............10

Statusindicators............11

Locatingimportantproductinformation.....13

Machinetypeandmodellabel.......13

FCCIDandICCerticationnumberlabel..14

CerticateofAuthenticitylabel......15

Features.................16

Specications...............17

Operatingenvironment...........18

ThinkVantageTechnologiesandsoftware....18

AccessingapplicationsinWindows7....19

AccessConnections..........20

ActiveProtectionSystem.........21

ClientSecuritySolution.........21

FingerprintSoftware...........21

LenovoSolutionCenter.........22

LenovoThinkVantageTools........22

LenovoThinkVantageToolbox.......22

MessageCenterPlus..........22

PasswordManager...........23

PowerManager............23

PresentationDirector..........23

ProductRecovery...........23

RescueandRecovery..........23

SimpleTap..............24

SystemUpdate............24

ThinkVantageGPS...........24

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

Powermanagement............38

Checkingbatterystatus.........38

Usingtheacpoweradapter........38

Chargingthebattery..........39

Maximizingbatterylife..........39

Managingyourbatterypower.......39

Power-savingmodes..........39

Handlingthebattery...........41

Connectingtothenetwork..........42

Ethernetconnections..........42

Wirelessconnections..........43

Usingthebuilt-inmodem.........50

Usingaprojectororexternaldisplay......69

Changingdisplaysettings........69

Connectingaprojectororexternaldisplay..70

Settingupapresentation.........74

Usingdualdisplays...........75

UsingtheNVIDIAOptimusGraphicsfeature...76

Usingaudiofeatures............77

Usinganintegratedcamera.........78

UsingtheThinkLightfeature.........78

Usingtheopticaldrive...........79

Usingthemediacardreader.........79

InsertinganExpressCard,aashmediacard,

orasmartcard.............79

RemovinganExpressCard,aashmediacard

orasmartcard.............80

Chapter3.Youandyourcomputer..83

Accessibilityandcomfort..........83

Ergonomicinformation..........83

Adjustingyourcomputertotyou.....84

Accessibilityinformation.........85

FullScreenMagnierfunction.......85

Travelingwithyourcomputer.........86

Traveltips...............86

Travelaccessories...........86

©CopyrightLenovo2011

i

Chapter4.Security..........89

Attachingamechanicallock.........89

Usingpasswords..............89

Passwordsandsleep(standby)mode....90

Typingpasswords...........90

Power-onpassword...........90

Harddiskpasswords..........91

Supervisorpassword..........93

Harddisksecurity.............95

Settingthesecuritychip...........96

Usingangerprintreader..........97

Noticeondeletingdatafromyourharddiskdrive

orsolidstatedrive.............100

Usingandunderstandingrewalls.......100

Protectingdataagainstviruses........101

Chapter5.Recoveryoverview...103

Creatingandusingrecoverymedia......103

Creatingrecoverymedia.........104

Usingrecoverymedia..........104

Performingbackupandrecoveryoperations...105

Performingabackupoperation......105

Performingarecoveryoperation......105

UsingtheRescueandRecoveryworkspace...106

Creatingandusingarescuemedium......107

Creatingarescuemedium........107

Usingarescuemedium.........107

Reinstallingpreinstalledapplicationsanddevice

drivers..................108

Solvingrecoveryproblems..........109

Chapter6.Replacingdevices....111

Staticelectricityprevention..........111

Replacingthebattery............111

Replacingtheharddiskdrive.........115

Replacingthekeyboard...........119

Replacingmemory.............123

InstallingandreplacingthemSATAsolidstate

drive...................127

InstallingandreplacingaPCIExpressMiniCard

forwirelessLAN/WiMAXconnection......130

InstallingandreplacingthePCIExpressMiniCard

forwirelessWAN..............137

ReplacingtheSIMcard...........142

Replacingthesolidstatedrive........143

Chapter7.Enhancingyour

computer..............149

FindingThinkPadoptions..........149

UsingtheserialUltrabayenhanced......149

Replacingthedevice..........149

Performingahotswap..........150

Performingawarmswap.........151

Insertingtheharddiskdriveintothe

adapter................153

Insertingtheharddiskdriveadapterintothe

bay.................155

ThinkPadPortReplicatorSeries3,ThinkPadMini

DockSeries3,ThinkPadMiniDockPlusSeries3,

andThinkPadMiniDockPlusSeries3(170W)..156

Frontview...............156

Rearview...............159

AttachingaThinkPadPortReplicatorSeries3,

ThinkPadMiniDockSeries3,ThinkPadMini

DockPlusSeries3,orThinkPadMiniDock

PlusSeries3(170W)..........162

DetachingaThinkPadPortReplicatorSeries

3,ThinkPadMiniDockSeries3,ThinkPad

MiniDockPlusSeries3,ortheThinkPadMini

DockPlusSeries3(170W)........164

Securityfeature............166

Usingthesystemlockkey........168

Chapter8.Advanced

conguration............169

Installinganewoperatingsystem.......169

Beforeyoubegin............169

InstallingWindows7..........170

InstallingWindowsVista.........171

InstallingWindowsXP..........172

Installingdevicedrivers...........175

Installingthedriverforthe4-in-1MediaCard

Reader................175

InstallingThinkPadMonitorFileforWindows

2000/XP/Vista/7............175

ThinkPadSetup..............177

Congmenu..............177

Dateandtimemenu...........178

Securitymenu.............178

Startupmenu.............179

Restartmenu.............181

ThinkPadSetupitems..........181

UpdatingyoursystemUEFIBIOS.....191

Usingsystemmanagement..........192

Systemmanagement..........192

Settingmanagementfeatures.......193

Chapter9.Preventingproblems..195

Generaltipsforpreventingproblems......195

Makingsuredevicedriversarecurrent.....196

GettingthelatestdriversfromtheWebsite..196

GettingthelatestdriversusingSystem

Update................196

Takingcareofyourcomputer.........196

Cleaningthecoverofyourcomputer....199

iiUserGuide

Chapter10.Troubleshooting

computerproblems.........201

Diagnosingproblems............201

Troubleshooting..............202

Computerstopsresponding.......202

Spillsonthekeyboard..........203

Errormessages............203

Errorswithoutmessages.........205

Beeperrors..............206

Memoryproblems...........207

Modemandnetworking.........207

Keyboardandotherpointingdevices....214

Displayandmultimediadevices......215

Fingerprintreaderproblems........225

Batteryandpower...........225

Drivesandotherstoragedevices.....229

Softwareproblems...........231

Portsandconnectors..........231

UniversalSerialBusproblems.......232

Adockingstationorportreplicator

problem...............232

Chapter11.Gettingsupport....233

BeforeyoucontactLenovo..........233

Registeryourcomputer.........233

Downloadsystemupdates........233

Recordinformation...........233

Gettinghelpandservice...........234

Usingdiagnosticprograms........234

LenovoSupportWebsite.........234

CallingLenovo.............234

Purchasingadditionalservices........235

AppendixA.Regulatory

information.............237

Wirelessrelatedinformation.........237

LocationoftheUltraConnectwireless

antennas...............238

Locatingwirelessregulatorynotices....240

Exportclassicationnotice..........241

Electronicemissionnotices..........241

FederalCommunicationsCommission

DeclarationofConformity........241

IndustryCanadaClassBemissioncompliance

statement...............241

EuropeanUnion-Compliancetothe

ElectromagneticCompatibilityDirective...241

GermanClassBcompliancestatement...242

KoreaClassBcompliancestatement....242

JapaneseVCCIClassBstatement.....243

Japancompliancestatementforproducts

whichconnecttothepowermainswith

ratedcurrentlessthanorequalto20Aper

phase................243

Lenovoproductserviceinformationfor

Taiwan................243

Additionalregulatoryinformation.......243

AppendixB.WEEEandrecycling

statements.............245

ImportantWEEEInformation.........245

BatteryrecyclinginformationforJapan.....245

BatteryrecyclinginformationforBrazil.....246

BatteryrecyclinginformationforTaiwan.....246

BatteryrecyclinginformationforEuropean

Union..................247

BatteryrecyclinginformationforUnitedStatesand

Canada.................247

AppendixC.Notices.........249

Trademarks................250

AppendixD.RestrictionofHazardous

SubstancesDirective(RoHS)....251

ChinaRoHS................251

TurkishRoHS...............251

UkraineRoHS...............251

IndiaRoHS................252

©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)and

1394cableswhilethecomputerpowerison;otherwise,youmightdamageyourcomputer.Toavoid

possibledamagetoattacheddevices,waitatleastvesecondsafterthecomputerisshutdownto

disconnectexternaldevices.

Batteries

DANGER

PersonalcomputersmanufacturedbyLenovocontainacoincellbatterytoprovidepowerto

thesystemclock.Inaddition,manymobileproducts,suchasnotebookcomputers,utilizea

rechargeablebatterypacktoprovidesystempowerwheninportablemode.Batteriessuppliedby

Lenovoforusewithyourproducthavebeentestedforcompatibilityandshouldonlybereplaced

withapprovedparts.

ThissystemdoesnotsupportbatteriesthatarenotgenuineLenovo-madeorauthorized.The

systemwillcontinuetoboot,butmaynotchargeunauthorizedbatteries.Attention:Lenovohasno

responsibilityfortheperformanceorsafetyofunauthorizedbatteries,andprovidesnowarranties

forfailuresordamagearisingoutoftheiruse.

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.

Rechargeablebatterynotice

DANGER

Donotattempttodisassembleormodifythebatterypack.Attemptingtodosocancausean

explosion,orliquidleakagefromthebatterypack.Abatterypackotherthantheonespeciedby

Lenovo,oradisassembledormodiedbatterypackisnotcoveredbythewarranty.

Iftherechargeablebatterypackisincorrectlyreplaced,thereisdangerofanexplosion.Thebattery

packcontainsasmallamountofharmfulsubstances.Toavoidpossibleinjury:

•ReplaceonlywithabatteryofthetyperecommendedbyLenovo.

•Keepthebatterypackawayfromre.

•Donotexposeittowaterorrain.

•Donotattempttodisassembleit.

•Donotshort-circuitit.

xUserGuide

•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.

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

©CopyrightLenovo2011

xi

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).

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.

xiiUserGuide

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.

Modemsafetyinformation

DANGER

ForNorthAmericaType:

CAUTION:

Toreducetheriskofre,useonlyNo.26AWGorlarger(forexample,No.24AWG)

telecommunicationlinecordlistedbyUnderwritersLaboratories(UL)orcertiedbytheCanadian

StandardsAssociation(CSA).

Toreducetheriskofre,electricalshock,orinjurywhenusingtelephoneequipment,always

followbasicsafetyprecautionsasthefollowing:

•Donotconnectthecabletoordisconnectitfromthetelephoneoutletonthewallduringa

lightningstorm.

•Donotinstalltelephonejacksinwetlocations.Donotuseyourcomputernearwater.

•Donottouchuninsulatedtelephonewiresorterminalsunlessthetelephonelinehasbeen

disconnectedatthenetworkinterface.

•Usecautionwheninstallingormodifyingtelephonelines.

•Donotuseyourcomputerwiththetelephonecableconnectionduringanelectricalstorm.There

maybearemoteriskofelectricshockfromlightning.

•Donotuseatelephone(otherthanacordlesstype)duringanelectricalstorm.

•Donotusethetelephonetoreportagasleakinthevicinityoftheleak.

•DonotconnectthetelephonecabletotheEthernetconnector.

Lasercompliancestatement

CAUTION:

Whenlaserproducts(suchasCD-ROMs,DVDdrives,beropticdevices,ortransmitters)are

installed,notethefollowing:

•Donotremovethecovers.Removingthecoversofthelaserproductcouldresultinexposureto

hazardouslaserradiation.Therearenoserviceablepartsinsidethedevice.

©CopyrightLenovo2011

xiii

•Useofcontrolsoradjustmentsorperformanceofproceduresotherthanthosespeciedherein

mightresultinhazardousradiationexposure.

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”onpage16

•“Specications”onpage17

•“Operatingenvironment”onpage18

•“ThinkVantageTechnologiesandsoftware”onpage18

Locatingcomputercontrols,connectors,andindicators

Thissectionintroducesyoutothehardwarefeaturesofyourcomputer,andthengivesyouthebasic

informationyou'llneedtostarttakingadvantageofitsfunctions.

•“Frontview”onpage2

•“Right-sideview”onpage5

•“Left-sideview”onpage7

•“Rearview”onpage10

•“Bottomview”onpage8

•“Statusindicators”onpage11

1

Frontview

Figure1.ThinkPadT420/T420ifrontview

1Computerdisplay

2Powerswitch

3Fingerprintreader4TrackPointbuttons

5TrackPointpointingstick6ThinkVantagebutton

7Systemandpower-statusindicators8UltraConnectwirelessantennas(left)

9Built-inmicrophone(left)

10Integratedcamera

11ThinkLight

12Built-inmicrophone(right)

13UltraConnectwirelessantennas(right)14Built-instereospeaker(left)

15ForwardandBackkeys16Bluetoothantenna

17Touchpad18Touchpadbuttons

19Fnkey

20CapsLockkeyindicator

21Built-instereospeaker(left)

22Volumecontrolbuttons

1Computerdisplay

Thehigh-resolution,thin-lmtransistor(TFT)displayprovidesclearandbrillianttextandgraphics.

Fordetails,refertotheinstructionsin“Changingdisplaysettings”onpage69.

2Powerswitch

Usethepowerswitchtoturnonthecomputer.Toturnoffyourcomputer,usetheStartmenushutdown

options.

Ifyoucannotturnoffthecomputerbythismethod,pressandholdthepowerswitchfor2seconds.

2UserGuide

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Lenovo 41786UU User manual

Lenovo 41786UU User manual

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