Lenovo K4350 User Manual

HardwareMaintenanceManual
LenovoZhaoYangK4350andK4350A
Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadthegeneralinformation
underAppendixA“Notices”onpage73
.
FirstEdition(April2013)
©CopyrightLenovo2013.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration “GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.GS-35F-05925.
Contents
Aboutthismanual...........iii
Chapter1.Safetyinformation......1
Generalsafety................1
Electricalsafety...............1
Safetyinspectionguide............3
Handlingdevicesthataresensitivetoelectrostatic
discharge..................3
Groundingrequirements............4
Safetynotices(multilingualtranslations)......4
Chapter2.Generalcheckout.....21
Whattodorst..............21
Powersystemcheckout...........22
Checkingtheacpoweradapter......22
Checkingoperationalcharging......23
Checkingthebatterypack........23
Chapter3.Importantservice
information..............25
Recoveringthecomputersettings.......25
Usingpasswords..............25
Powermanagement............26
Screenblankmode...........26
Sleepmode..............26
Hibernationmode...........27
Chapter4.Statusindicators.....29
Chapter5.Fnkeycombinations...31
Chapter6.Locations.........33
Locatingcomputercontrols,connectors,and
indicators.................33
Frontview...............33
Bottomview..............34
LocatingFRUsandCRUs..........34
MajorFRUsandCRUs..........35
LCDFRUsandCRUs..........36
LookingupFRUinformation.........37
Chapter7.FRUreplacement
notices................39
ImportantnoticeforreplacingFRUs......39
Screwnotices...............40
Chapter8.Removingorreplacinga
FRU..................41
Generalguidelines.............41
1010Batterypack.............42
1020Bottomslotcover...........42
1030Memorymodules...........43
1040Harddiskdriveassembly........45
1050PCIExpressMiniCardforwirelessLAN..46
1060mSAT Asolid-statedrive.........47
1070Backupbattery............48
1080Keyboard..............49
1090Keyboardbezel............51
1110Fingerprintboardbracketandngerprint
boardwithcable..............54
1120Powerboard.............55
1130Mediacardreaderslotboard.......55
1140Systemboardassembly.........57
1150Thermalmoduleassembly........60
1160Speakers,LCDunitandbasecover....62
1170DC-inconnector............66
2010LCDfrontbezel............67
2020Cameraandmicrophoneboard......67
2030LCDpanel,LCDcable,andhinges....68
2040AntennaassemblyandLCDrearcover...70
AppendixA.Notices..........73
Trademarks................74
©CopyrightLenovo2013
i
iiHardwareMaintenanceManual

Aboutthismanual

ThismanualprovidesserviceandreferenceinformationforthefollowingLenovo
Machine
LenovoZhaoYangK4350andK4350A20228
MachineType(MT)
®
products.
Thismanualprovidesinformationaboutthecomputerfeatures,specications,componentlocations, hardwarereplacementprocedures,andpartslisting.Thismanualalsoincludessafetyguidelinesand importantnoticesforservicingthecomputer.
Important:
•ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithLenovoproducts.Use thismanualtotroubleshootproblemseffectively.
•BeforeservicingaLenovoproduct,ensurethatyoureadalltheinformationinChapter1“Safety information”onpage1
andChapter3“Importantserviceinformation”onpage25.
©CopyrightLenovo2013
iii
ivHardwareMaintenanceManual

Chapter1.Safetyinformation

Thischapterpresentsthefollowingsafetyinformationthatyouneedtobefamiliarwithbeforeyouservicea Lenovonotebookcomputer.
“Generalsafety”onpage1
“Electricalsafety”onpage1
“Safetyinspectionguide”onpage3
“Handlingdevicesthataresensitivetoelectrostaticdischarge”onpage3
“Groundingrequirements”onpage4
“Safetynotices(multilingualtranslations)”onpage4

Generalsafety

Followtheserulestoensuregeneralsafety:
•Observegoodhousekeepingintheareaofthemachinesduringandaftermaintenance.
•Whenliftinganyheavyobject:
1.Makesurethatyoucanstandsafelywithoutslipping.
2.Distributetheweightoftheobjectequallybetweenyourfeet.
3.Useaslowliftingforce.Nevermovesuddenlyortwistwhenyouattempttolift.
4.Liftbystandingorbypushingupwithyourlegmuscles;thisactionremovesthestrainfromthe musclesinyourback.Donotattempttoliftanyobjectthatweighsmorethan16kg(35lb)orthatyou thinkistooheavyforyou.
•Donotperformanyactionthatcauseshazardstothecustomer,orthatmakestheequipmentunsafe.
•Beforeyoustartthemachine,makesurethatotherservicetechniciansandthecustomer'spersonnelare notinahazardousposition.
•Placeremovedcoversandotherpartsinasafeplace,awayfromallpersonnel,whileyouareservicing themachine.
•Keepyourtoolcaseawayfromwalkareassothatotherpeoplewillnottripoverit.
•Donotwearlooseclothingthatcanbetrappedinthemovingpartsofamachine.Makesurethatyour sleevesarefastenedorrolledupaboveyourelbows.Ifyourhairislong,fastenit.
•Inserttheendsofyournecktieorscarfinsideclothingorfastenitwithanonconductiveclip,about8 centimeters(3inches)fromtheend.
•Donotwearjewelry,chains,metal-frameeyeglasses,ormetalfastenersforyourclothing,becausemetal objectsaregoodelectricalconductors.
•Wearsafetyglasseswhenyouarehammering,drilling,soldering,cuttingwire,attachingsprings,using solvents,orworkinginanyotherconditionsthatmightbehazardoustoyoureyes.
•Afterservice,reinstallallsafetyshields,guards,labels,andgroundwires.Replaceanysafetydevice thatiswornordefective.
•Reinstallallcoverscorrectlybeforereturningthemachinetothecustomer.
•Fanlouversonthemachinehelptopreventoverheatingofinternalcomponents.Donotobstructfan louversorcoverthemwithlabelsorstickers.

Electricalsafety

Observethefollowingruleswhenworkingonelectricalequipment.
©CopyrightLenovo2013
1
Important:
Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoftmaterial thatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents. Manycustomershave,neartheirequipment,rubberoormatsthatcontainsmallconductivebersto decreaseelectrostaticdischarges.Donotusethistypeofmattoprotectyourselffromelectricalshock.
•Findtheroomemergencypower-off(EPO)switch,disconnectingswitch,orelectricaloutlet.Ifanelectrical accidentoccurs,youcanthenoperatetheswitchorunplugthepowercordquickly.
•Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltages.
•Disconnectallpowerbefore: –Performingamechanicalinspection –Workingnearpowersupplies –Removingorinstallingmainunits
•Beforeyoustarttoworkonthemachine,unplugthepowercord.Ifyoucannotunplugit,askthecustomer topower-offthewallboxthatsuppliespowertothemachine,andtolockthewallboxintheoffposition.
•Ifyouneedtoworkonamachinethathasexposedelectricalcircuits,observethefollowingprecautions: –Ensurethatanotherperson,familiarwiththepower-offcontrols,isnearyou.
Attention:Anotherpersonmustbetheretoswitchoffthepower,ifnecessary.
–Useonlyonehandwhenworkingwithpowered-onelectricalequipment;keeptheotherhandinyour
pocketorbehindyourback.
Attention:Anelectricalshockcanoccuronlywhenthereisacompletecircuit.Byobservingtheabove rule,youmaypreventacurrentfrompassingthroughyourbody.
–Whenusingtesters,setthecontrolscorrectlyandusetheapprovedprobeleadsandaccessoriesfor
thattester.
–Standonsuitablerubbermats(obtainedlocally,ifnecessary)toinsulateyoufromgroundssuchas
metaloorstripsandmachineframes. Observethespecialsafetyprecautionswhenyouworkwithveryhighvoltages;Instructionsforthese precautionsareinthesafetysectionsofmaintenanceinformation.Useextremecarewhenmeasuring highvoltages.
•Regularlyinspectandmaintainyourelectricalhandtoolsforsafeoperationalcondition.
•Donotusewornorbrokentoolsandtesters.
Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkthatithasbeenpoweredoff.
•Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesofthesehazardsaremoistoors, nongroundedpowerextensioncables,powersurges,andmissingsafetygrounds.
•Donottouchliveelectricalcircuitswiththereectivesurfaceofaplasticdentalmirror.Thesurfaceis conductive;suchtouchingcancausepersonalinjuryandmachinedamage.
•Donotservicethefollowingpartswiththepoweronwhentheyareremovedfromtheirnormaloperating placesinamachine: –Powersupplyunits –Pumps –Blowersandfans –Motorgenerators –Similarunitstolistedabove Thispracticeensurescorrectgroundingoftheunits.
•Ifanelectricalaccidentoccurs: –Usecaution;donotbecomeavictimyourself. –Switchoffpower. –Sendanotherpersontogetmedicalaid.
2HardwareMaintenanceManual

Safetyinspectionguide

Thepurposeofthisinspectionguideistoassistyouinidentifyingpotentiallyunsafeconditions.Aseach machinewasdesignedandbuilt,requiredsafetyitemswereinstalledtoprotectusersandservicetechnicians frominjury.Thisguideaddressesonlythoseitems.Y oushouldusegoodjudgmenttoidentifypotential safetyhazardsduetoattachmentofnon-Lenovofeaturesoroptionsnotcoveredbythisinspectionguide.
Ifanyunsafeconditionsarepresent,youmustdeterminehowserioustheapparenthazardcouldbeand whetheryoucancontinuewithoutrstcorrectingtheproblem.
Considertheseconditionsandthesafetyhazardstheypresent:
•Electricalhazards,especiallyprimarypower(primaryvoltageontheframecancauseseriousorfatal electricalshock)
•Explosivehazards,suchasadamagedCRTfaceorabulgingcapacitor
•Mechanicalhazards,suchaslooseormissinghardware
Todeterminewhetherthereareanypotentiallyunsafeconditions,usethefollowingchecklistatthebeginning ofeveryservicetask.Beginthecheckswiththepoweroff,andthepowercorddisconnected.
Checklist:
1.Checkexteriorcoversfordamage(loose,broken,orsharpedges).
2.Poweroffthecomputer.Disconnectthepowercord.
3.Checkthepowercordfor:
a.Athird-wiregroundconnectoringoodcondition.Useametertomeasurethird-wireground
continuityfor0.1ohmorlessbetweentheexternalgroundpinandtheframeground.
b.Thepowercordshouldbethetypespeciedinthepartslist.
c.Insulationmustnotbefrayedorworn.
4.Checkforcrackedorbulgingbatteries.
5.Removethecover.
6.Checkforanyobviousnon-Lenovoalterations.Usegoodjudgmentastothesafetyofanynon-Lenovo alterations.
7.Checkinsidetheunitforanyobviousunsafeconditions,suchasmetallings,contamination,wateror otherliquids,orsignsofreorsmokedamage.
8.Checkforworn,frayed,orpinchedcables.
9.Checkthatthepower-supplycoverfasteners(screwsorrivets)havenotbeenremovedortamperedwith.

Handlingdevicesthataresensitivetoelectrostaticdischarge

Anycomputerpartcontainingtransistorsorintegratedcircuits(ICs)shouldbeconsideredsensitiveto electrostaticdischarge(ESD).ESDdamagecanoccurwhenthereisadifferenceinchargebetweenobjects. ProtectagainstESDdamagebyequalizingthechargesothatthemachine,thepart,theworkmat,andthe personhandlingthepartareallatthesamecharge.
Notes:
1.Useproduct-specicESDprocedureswhentheyexceedtherequirementsnotedhere.
2.MakesurethattheESDprotectivedevicesyouusehavebeencertied(ISO9000)asfullyeffective.
WhenhandlingESD-sensitiveparts:
Chapter1.Safetyinformation3
•Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.
•Avoidcontactwithotherpeople.
•Wearagroundedwriststrapagainstyourskintoeliminatestaticonyourbody.
•Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeandretainsachargeevenwhen youarewearingawriststrap.
•Useagroundedworkmattoprovideastatic-freeworksurface.Thematisespeciallyusefulwhen handlingESD-sensitivedevices.
•Selectagroundingsystem,suchasthoselistedbelow,toprovideprotectionthatmeetsthespecic servicerequirement.
Note:TheuseofagroundingsystemtoguardagainstESDdamageisdesirablebutnotnecessary.
–AttachtheESDgroundcliptoanyframeground,groundbraid,orgreen-wireground.
–Whenworkingonadouble-insulatedorbattery-operatedsystem,useanESDcommongroundor
referencepoint.Y oucanusecoaxorconnector-outsideshellsonthesesystems.
–Usetheroundgroundprongoftheacplugonac-operatedcomputers.

Groundingrequirements

Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper groundingoftheelectricaloutletcanbeveriedbyacertiedelectrician.

Safetynotices(multilingualtranslations)

Thesafetynoticesinthissectionareprovidedinthefollowinglanguages:
•English
•Arabic
•BrazilianPortuguese
•French
•German
•Hebrew
•Japanese
•Korean
•Spanish
•T raditionalChinese
DANGER
DANGER
4HardwareMaintenanceManual
DANGER
DANGER
DANGER
DANGER
DANGER
Chapter1.Safetyinformation5
DANGER
6HardwareMaintenanceManual
Chapter1.Safetyinformation7
PERIGO
PERIGO
PERIGO
PERIGO
PERIGO
PERIGO
8HardwareMaintenanceManual
PERIGO
PERIGO
DANGER
DANGER
DANGER
Chapter1.Safetyinformation9
DANGER
DANGER
DANGER
DANGER
DANGER
VORSICHT
10HardwareMaintenanceManual
VORSICHT
VORSICHT
VORSICHT
VORSICHT
Chapter1.Safetyinformation11
VORSICHT
VORSICHT
VORSICHT
12HardwareMaintenanceManual
Chapter1.Safetyinformation13
14HardwareMaintenanceManual
Chapter1.Safetyinformation15
16HardwareMaintenanceManual
Chapter1.Safetyinformation17
18HardwareMaintenanceManual
Chapter1.Safetyinformation19
Loading...
+ 57 hidden pages