Lenovo 59416331 Datasheet

Category
Notebooks
Type
Datasheet

This manual is also suitable for

Lenovo G50-30/G50-45/
G50-70/G50-70m/Z50-70/
Z50-75
Hardware
Maintenance
Manual
Notes:
•
Before using this information and the product it supports, be sure to read the general information under
“Notices” on page 88.
•
This manual applies to the following models: Lenovo G50-30/G50-45/G50-70/G50-70m/Z50-70/Z50-75.
The illustrations used in this manual are for Lenovo G50-70 unless otherwise stated.
First Edition (Apr. 2014)
© Copyright Lenovo 2014. All rights reserved.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneral
ServicesAdministration“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionsset
forthinContractNo.GS-35F-05925.
©2014Lenovo
iii
Contents
About this manual ....................................... iv
Safety information ........................................ 1
Generalsafety................................................ 2
Electricalsafety.............................................. 3
Safetyinspectionguide.................................. 5
Handlingdevicesthataresensitiveto
electrostaticdischarge.................................... 6
Groundingrequirements................................. 6
Safetynotices:multilingualtranslations.......... 7
Lasercompliancestatement......................... 14
Important service information ................... 16
StrategyforreplacingFRUs......................... 16
Strategyforreplacingaharddiskdrive............17
Importantnoticeforreplacingasystemboard
......17
Importantinformationaboutreplacing
RoHScompliantFRUs................................. 18
General checkout ...................................... 19
Whattodorst............................................. 20
Powersystemcheckout................................ 21
CheckingtheACadapter.................................21
Checkingoperationalcharging.........................21
Checkingthebatterypack................................22
Related service information ...................... 23
Restoringthefactorycontentsbyusing
OneKeyRecovery........................................ 23
Restoreoffactorydefault.................................23
Passwords.................................................... 24
Power-onpassword..........................................24
Hard-diskpassword..........................................24
Administratorpassword....................................24
Powermanagement..................................... 25
Screenblankstate............................................25
Puttingthecomputertosleeporshuttingitdown
...... 25
Puttingyourcomputertosleep.........................25
Shuttingdownthecomputer.............................25
Lenovo G50-30/G50-45/G50-70/
G50-70m/Z50-70/Z50-75.............................. 26
Specications............................................... 26
Statusindicators........................................... 29
Hotkeys......................................................... 30
FRUreplacementnotices............................. 31
Screwnotices..................................................31
RemovingandreplacinganFRU................. 32
1010Batterypack.............................................33
1020Basecover...............................................34
1030Opticaldrive.............................................36
1040Harddiskdrive.........................................37
1050
PCIExpressMiniCardforwirelessLAN
......39
1060DIMM.......................................................41
1070Fanassembly..........................................42
1080Keyboard.................................................44
1090
Keyboardbezel......................................... 47
1100ODDboardandUSB&audioboard..........50
1110
Systemboard............................................ 54
1120Heatsinkassembly..................................57
1130SpeakersandDC-incable.......................58
1140LCDunit...................................................60
1150
LCDfrontbezel,LCDpanel,andhinges
......62
1160Camera....................................................65
1170LCDcableandantennaassembly...........67
Locations...................................................... 68
Frontviewandright-sideview..........................68
BottomandLeft-sideview...............................69
Partslist........................................................ 70
Overall..............................................................71
LCDFRUs........................................................79
Keyboard..........................................................81
Miscellaneousparts..........................................83
ACadapters......................................................84
Screw................................................................84
Powercords......................................................85
Notices......................................................... 88
Trademarks.................................................. 89
iv
About this manual
Thismanualcontainsserviceandreferenceinformationforthefollowing
Lenovoproduct:
Lenovo G50-30/G50-45/G50-70/G50-70m/Z50-70/Z50-75
Usethismanualtotroubleshootproblems.
Themanualisdividedintothefollowingsections:
• Thecommonsectionsprovidegeneralinformation,guidelines,andsafety
informationrequiredforservicingcomputers.
• Theproduct-specicsectionincludesservice,reference,andproduct-specic
partsinformation.
Important:
This manual is intended only for trained servicers who are familiar with Lenovo
products. Use this manual to troubleshoot problems effectively.
Before servicing a Lenovo product, make sure to read all the information under
“Safety information” on page 1 and “Important service information” on page 16.
1
Safety information
Safety information
Thischapterpresentsthefollowingsafetyinformationthatyouneedtoget
familiarwithbeforeyouserviceaLenovoG50-30/G50-45/G50-70/G50-70m/
Z50-70/Z50-75computer:
• “Generalsafety”onpage2
• “Electricalsafety”onpage3
• “Safetyinspectionguide”onpage5
• “Handlingdevicesthataresensitivetoelectrostaticdischarge”onpage6
• “Groundingrequirements”onpage6
• “Safetynotices:multilingualtranslations”onpage7
• “Lasercompliancestatement”onpage14
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G50-30/G50-45/G50-70/G50-70m/Z50-70/Z50-75 Hardware Maintenance Manual
General safety
Followtheserulesbelowtoensuregeneralsafety:
• Observeagoodhousekeepinginthearea where themachinesareput
duringandafterthemaintenance.
• Whenliftinganyheavyobject:
1. Makesurethatyoucanstandsafelywithoutslipping.
2. Distributetheweightoftheobjectequallybetweenyourfeet.
3. Useaslowliftingforce.Nevermovesuddenlyortwistwhenyouattempt
toliftit.
4. Liftitbystandingorpushingupwithyourlegmuscles;thisactioncould
avoidthestrainfromthemusclesinyourback.Donotattempttoliftany
objectthatweighsmorethan16kg(35lb)orthatyouthinkistooheavy
foryou.
• Donotperformanyactionthatcauses hazardstothe customer,or that
makesthemachineunsafe.
• Beforeyoustartthemachine,make sure thatotherservice representatives
andthecustomerarenotinahazardousposition.
• Pleaseremovecoversandotherpartsina safe place, awayfromall
personnel,whileyouareservicingthemachine.
• Keepyourtoolcaseawayfromwalkareassothatotherpeoplewillnottrip
overit.
• Donotwearlooseclothingthatcanbetrappedinthemovingpartsofthe
machine.Makesurethatyoursleevesarefastenedorrolledupaboveyour
elbows.Ifyourhairislong,fastenit.
• Inserttheendsofyournecktieorscarfinsideclothingorfastenitwiththe
nonconductiveclip,about8centimeters(3inches)fromtheend.
• Donotwearjewelry,chains,metal-frameeyeglasses,ormetalfastenersfor
yourclothing.
Attention:
Metalobjectsaregoodelectricalconductors.
• Wearsafety glasseswhen you arehammering,drilling, soldering, cutting
wire,attachingsprings,usingsolvents,orworkinginanyotherconditions
thatmaybehazardoustoyoureyes.
• Afterservice,reinstallallsafetyshields, guards, labels,and ground wires.
Replaceanysafetydevicethatiswornordefective.
• Reinstallallcoverscorrectlybeforereturningthemachinetothecustomer.
• Fanlouversonthemachinehelptopreventthe overheating ofinternal
components.Donotobstructfanlouversorcoverthem with labelsor
stickers.
3
Safety information
Electrical safety
Observethefollowingruleswhenworkingonelectricalequipments.
Important:
Use only approved tools and test equipments. Some hand tools have handles
covered with a soft material that does not insulate you when working with live
electrical currents.
Many customers have rubber floor mats near their machines that contain small
conductive bers to decrease electrostatic discharges. Do not use such kind of mat
to protect yourself from electrical shock.
• Findtheroomemergencypower-off(EPO)switch,disconnectingswitchor
electricaloutlet.Ifanelectricalaccidentoccurs,youcan then operatethe
switchorunplugthepowercordquickly.
• Donotworkaloneunderhazardous conditionsorneartheequipmentthat
hashazardousvoltages.
• Disconnectallpowerbefore:
– Performingamechanicalinspection
– Workingnearpowersupplies
– Removingorinstallingmainunits
• Beforeyoustarttoworkonthemachine,unplugthepowercord.Ifyou
cannotunplugit,askthecustomertopower-offthe wall box that supplies
powertothemachine,andtolockthewallboxintheoffposition.
• Ifyouneedtoworkonamachinethathasexposedelectricalcircuits,
observethefollowingprecautions:
– Ensurethatanotherperson,familiarwiththepower-offcontrols,isnear
you.
Attention:
Anotherpersonmustbetheretoswitchoffthepower,if
necessary.
– Useonlyonehandwhenworkingwithpowered-onelectricalequipment;
keeptheotherhandinyourpocketorbehindyourback.
Attention:
Anelectricalshockcanoccuronlywhenthereisacomplete
circuit.Byobservingtheaboverule,youmaypreventacurrentfrom
passingthroughyourbody.
– Whenusingtesters,setthecontrolscorrectlyandusetheapproved
probeleadsandaccessoriesforthattester.
– Standonsuitablerubbermats(obtainedlocally,ifnecessary)toinsulate
youfromgroundssuchasmetaloorstripsandmachineframes.
Observethespecialsafetyprecautionswhenyouworkwithveryhighvoltages;
instructionsfortheseprecautionsareinthesafetysectionsofmaintenance
information.Beextremelycarefulwhenyoumeasurethehighvoltages.
• Regularlyinspectandmaintainyourelectricalhandtoolsforsafeoperational
condition.
• Donotusewornorbrokentoolsandtesters.
• Neverassumethatpowerhasbeendisconnectedfromacircuit.First,check
ittomakesurethatithasbeenpoweredoff.
4
G50-30/G50-45/G50-70/G50-70m/Z50-70/Z50-75 Hardware Maintenance Manual
• Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesof
thesehazardsaremoistoors,nongroundedpowerextensioncables,power
surges,andmissingsafetygrounds.
• Donottouchliveelectricalcircuitswiththereflective surface ofaplastic
dentalmirror.The surfaceisconductive;suchtouchingcan cause personal
injuryandmachinedamage.
• Donotservicethefollowingpartswiththepoweronwhentheyareremoved
fromtheirnormaloperatingplacesinamachine:
– Powersupplyunits
– Pumps
– Blowersandfans
– Motorgenerators
andsimilarunits.(Thispracticeensurescorrectgroundingoftheunits.)
• Ifanelectricalaccidentoccurs:
– Caution:donotbecomeavictimyourself.
– Switchoffthepower.
– Sendthevictimtogetmedicalaid.
5
Safety information
Safety inspection guide
Thepurposeofthisinspectionguide is to assistyouin identifying potential
unsafeconditions.Aseachmachinewasdesignedandbuilt,requiredsafety
itemswereinstalledtoprotectusersandservicepersonnelfrominjury.This
guideaddressesonlythoseitems.Youshouldusegood judgment toidentify
potentialsafetyhazardsaccordingtotheattachmentofnon-Lenovofeaturesor
optionsnotcoveredbythisinspectionguide.
Ifanyunsafeconditionsarepresent,youmustdeterminehowseriousthe
apparenthazardcouldbeandwhetheryoucancontinuewithoutrstcorrecting
theproblem.
Considertheseconditionsandthesafetyhazardstheypresent:
• Electricalhazards,especiallyprimarypower(primaryvoltageontheframe
cancauseseriousorfatalelectricalshock)
• Explosivehazards,suchasadamagedCRTfaceorabulgingcapacitor
• Mechanicalhazards,suchaslooseormissinghardware
Todeterminewhetherthereareanypotentialunsafeconditions,usethe
followingchecklistatthebeginningofeveryservicetask.Beginthecheckswith
thepoweroff,andthepowercorddisconnected.
Checklist:
1. Checkexteriorcoversfordamage(loose,broken,orsharpedges).
2. Turnoffthecomputer.Disconnectthepowercord.
3. Checkthepowercordfor:
a. Athird-wiregroundconnectoringoodcondition.Useametertomeasure
third-wiregroundcontinuityfor0.1ohmorlessbetweentheexternal
groundpinandtheframeground.
b. Thepowercordshouldbethetypespeciedinthepartslist.
c. Insulationmustnotbefrayedorworn.
4. Checkforcrackedorbulgingbatteries.
5. Removethecover.
6. Checkforanyobviousnon-Lenovoalterations.Usegoodjudgmentastothe
safetyofanynon-Lenovoalterations.
7. Checkinsidetheunitforanyobviousunsafeconditions,suchasmetal
filings,contamination,waterorotherliquids,orsignsoffireorsmoke
damage.
8. Checkforworn,frayed,orpinchedcables.
9. Checkthatthepower-supplycoverfasteners (screws orrivets) have not
beenremovedortamperedwith.
6
G50-30/G50-45/G50-70/G50-70m/Z50-70/Z50-75 Hardware Maintenance Manual
Handling devices that are sensitive to electrostatic discharge
Anycomputerpartcontainingtransistorsorintegratedcircuits(ICs)shouldbe
consideredsensitivetoelectrostaticdischarge(ESD).ESDdamagecanoccur
whenthereisadifferenceinchargebetweenobjects. Protect againstESD
damagebyequalizingthechargesothatthemachine,thepart,theworkmat,
andthepersonhandlingthepartareallatthesamecharge.
Notes:
1. Use product-specific ESD procedures when they exceed the requirements
noted here.
2. Make sure that the ESD protective devices you use have been certied (ISO
9000) as fully effective.
WhenhandlingESD-sensitiveparts:
• Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.
• Avoidcontactwithotherpeople.
• Weara grounded wrist strap against your skin to eliminate static on your
body.
• Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeand
retainsachargeevenwhenyouarewearingawriststrap.
• Usetheblacksideofagroundedworkmattoprovideastatic-freework
surface.ThematisespeciallyusefulwhenhandlingESD-sensitivedevices.
• Selectagroundingsystem,suchasthoselistedbelow,toprovideprotection
thatmeetsthespecicservicerequirement.
Note:
The use of a grounding system to guard against ESD damage is desirable but not
necessary.
– AttachtheESDgroundcliptoanyframeground,groundbraid,orgreen-
wireground.
– Whenworkingonadouble-insulatedorbattery-operatedsystem,usean
ESDcommongroundorreferencepoint.Youcanusecoaxorconnector-
outsideshellsonthesesystems.
– Usetheroundgroundprongoftheacplugonac-operatedcomputers.
Grounding requirements
Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrect
systemfunction.Propergroundingoftheelectricaloutletcanbeveriedbya
certiedelectrician.
7
Safety information
Safety notices: multilingual translations
Thesafetynoticesinthissectionare provided inEnglish,French, German,
Hebrew,Italian,Japanese,andSpanish.
Safety notice 1
Before the computer is powered on after FRU replacement, make sure all screws,
springs, and other small parts are in place and are not left loose inside the
computer. Verify this by shaking the computer and listening for rattling sounds.
Metallic parts or metal akes can cause electrical shorts.
Avant de remettre l’ordinateur sous tension après remplacement d’une unité en
clientèle, vériez que tous les ressorts, vis et autres pièces sont bien en place et
bien xées. Pour ce faire, secouez l’unité et assurez-vous qu’aucun bruit suspect
ne se produit. Des pièces métalliques ou des copeaux de métal pourraient causer
un court-circuit.
Bevor nach einem FRU-Austausch der Computer wieder angeschlossen wird,
muß sichergestellt werden, daß keine Schrauben, Federn oder andere Kleinteile
fehlen oder im Gehäuse vergessen wurden. Der Computer muß geschüttelt und auf
Klappergeräusche geprüft werden. Metallteile oder-splitter können Kurzschlüsse
erzeugen.
Prima di accendere l’elaboratore dopo che é stata effettuata la sostituzione di una
FRU, accertarsi che tutte le viti, le molle e tutte le altri parti di piccole dimensioni
siano nella corretta posizione e non siano sparse all’interno dell’elaboratore.
Vericare ciò scuotendo l’elaboratore e prestando attenzione ad eventuali rumori;
eventuali parti o pezzetti metallici possono provocare cortocircuiti pericolosi.
Antes de encender el sistema despues de sustituir una FRU, compruebe que
todos los tornillos, muelles y demás piezas pequeñas se encuentran en su sitio
y no se encuentran sueltas dentro del sistema. Compruébelo agitando el sistema
y escuchando los posibles ruidos que provocarían. Las piezas metálicas pueden
causar cortocircuitos eléctricos.
9
Safety information
Safety notice 3
DANGER
The battery pack contains small amounts of nickel. Do not disassemble it, throw
it into re or water, or short-circuit it. Dispose of the battery pack as required by
local ordinances or regulations. Use only the battery in the appropriate parts listing
when replacing the battery pack. Use of an incorrect battery can result in ignition
or explosion of the battery.
La batterie contient du nickel. Ne la démontez pas, ne l’exposez ni au feu ni à l’eau.
Ne la mettez pas en court-circuit. Pour la mettre au rebut, conformez-vous à la
réglementation en vigueur. Lorsque vous remplacez la batterie, veillez à n’utiliser
que les modèles cités dans la liste de pièces détachées adéquate. En effet, une
batterie inappropriée risque de prendre feu ou d’exploser.
Akkus enthalten geringe Mengen von Nickel. Sie dürfen nicht zerlegt,
wiederaufgeladen, kurzgeschlossen, oder Feuer oder Wasser ausgesetzt werden.
Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Beim
Ersetzen der Batterie nur Batterien des Typs verwenden, der in der Ersatzteilliste
aufgeführt ist. Der Einsatz falscher Batterien kann zu Entzündung oder Explosion
führen.
La batteria contiene piccole quantità di nichel. Non smontarla, gettarla nel fuoco
o nell’acqua cortocircuitarla. Smaltirla secondo la normativa in vigore (DPR
915/82, successive disposizioni e disposizioni locali). Quando si sostituisce la
batteria, utilizzare soltanto i tipi inseriti nell’appropriato Catalogo parti. L’impiego
di una batteria non adatta potrebbe determinare l’incendio o l’esplosione della
batteria stessa.
Las baterías contienen pequeñas cantidades de níquel. No las desmonte, ni
recargue, ni las eche al fuego o al agua ni las cortocircuite. Deséchelas tal como
dispone la normativa local. Utilice sólo baterías que se encuentren en la lista de
piezas al sustituir la batería. La utilización de una batería no apropiada puede
provocar la ignición o explosión de la misma.
14
G50-30/G50-45/G50-70/G50-70m/Z50-70/Z50-75 Hardware Maintenance Manual
Laser compliance statement
SomemodelsofLenovocomputerareequippedfromthefactorywithan
opticalstoragedevicesuchasa CD-ROMdriveoraDVD-ROMdrive.Such
devicesarealsosoldseparatelyasoptions.Ifoneofthesedrivesisinstalled,
itiscertiedintheU.S.toconformtotherequirementsoftheDepartmentof
HealthandHumanServices21CodeofFederalRegulations(DHHS21CFR)
SubchapterJforClass1laserproducts.Elsewhere,thedriveiscertifiedto
conformtotherequirementsoftheInternationalElectrotechnical Commission
(IEC)825andCENELECEN60825forClass1laserproducts.
IfaCD-ROMdrive,aDVD-ROMdrive,oranotherlaserdeviceisinstalled,note
thefollowing:
CAUTION
Use of controls or adjustments or performance of procedures other than those
specied herein might result in hazardous radiation exposure.
O uso de controles, ajustes ou desempenho de procedimentos diferentes daqueles
aqui especicados pode resultar em perigosa exposição à radiação.
Pour éviter tout risque d’exposition au rayon laser, respectez les consignes de
réglage et d’utilisation des commandes, ainsi que les procédures décrites.
Werden Steuer- und Einstellelemente anders als hier festgesetzt verwendet, kann
gefährliche Laserstrahlung auftreten.
L’utilizzo di controlli, regolazioni o l’esecuzione di procedure diverse da quelle
specicate possono provocare l’esposizione a.
El uso de controles o ajustes o la ejecución de procedimientos distintos de los aquí
especicados puede provocar la exposición a radiaciones peligrosas.
OpeningtheCD-ROMdrive,theDVD-ROMdrive,oranyotheropticalstorage
devicecouldresultinexposuretohazardouslaserradiation.Thereareno
serviceablepartsinsidethosedrives.
Do not open
.
15
Safety information
ACD-ROMdrive,aDVD-ROMdrive,oranyotherstoragedeviceinstalledmay
containanembeddedClass3AorClass3Blaserdiode.Notethefollowing:
DANGER
Emits visible and invisible laser radiation when open. Do not stare into the beam,
do not view directly with optical instruments, and avoid direct exposure to the
beam.
Radiação por raio laser ao abrir. Não olhe fixo no feixe de luz, não olhe
diretamente por meio de instrumentos óticos e evite exposição direta com o feixe
de luz.
Rayonnement laser si carter ouvert. Évitez de fixer le faisceau, de le regarder
directement avec des instruments optiques, ou de vous exposer au rayon.
Laserstrahlung bei geöffnetem Gerät. Nicht direkt oder über optische Instrumente
in den Laserstrahl sehen und den Strahlungsbereich meiden.
Kinyitáskor lézersugár ! Ne nézzen bele se szabad szemmel, se optikai
eszközökkel. Kerülje a sugárnyalábbal való érintkezést!
Aprendo l’unità vengono emesse radiazioni laser. Non fissare il fascio, non
guardarlo direttamente con strumenti ottici e evitare l’esposizione diretta al fascio.
Radiación láser al abrir. No mire jamente ni examine con instrumental óptico el
haz de luz. Evite la exposición directa al haz.
16
G50-30/G50-45/G50-70/G50-70m/Z50-70/Z50-75 Hardware Maintenance Manual
Important service information
Thischapterpresentsthefollowingimportantserviceinformation:
• “StrategyforreplacingFRUs”onpage16
– “Strategyforreplacingaharddiskdrive”onpage17
– “Importantnoticeforreplacingasystemboard”onpage17
• “ImportantinformationaboutreplacingRoHScompliantFRUs”onpage18
Important:
BIOS and device driver xes are customer-installable. The BIOS and device drivers
are posted on the customer support site:
http://support.lenovo.com.
Strategy for replacing FRUs
Before replacing parts:
Makesurethatallsoftwarexes,drivers, and BIOSdownloadsare installed
beforereplacinganyFRUslistedinthismanual.
Afterasystemboardisreplaced,ensurethatthelatestBIOSisloadedtothe
systemboardbeforecompletingtheserviceaction.
Todownloadsoftwarexes,drivers,andBIOS,followthestepsbelow:
1. Gotohttp://support.lenovo.com.
2. Entertheserialnumberorselectaproductoruse Lenovo smart
downloading.
3. SelecttheBIOS/Driver/Applicationsanddownload.
4. Followthedirectionsonthescreenandinstallthenecessarysoftware.
17
Important service information
Usethefollowingstrategytopreventunnecessaryexpenseforreplacingand
servicingFRUs:
• IfyouareinstructedtoreplaceanFRU,butthereplacementdoesnotsolve
theproblem,reinstalltheoriginalFRUbeforeyoucontinue.
• Somecomputershavebothaprocessor boardand a systemboard.If you
areinstructedtoreplaceeitherofthem,andreplacingoneofthemdoesnot
solvetheproblem,reinstallthatboard,andthenreplacetheotherone.
• IfanadapteroradeviceconsistsofmorethanoneFRU,anyoftheFRUs
maybethecauseoftheerror.Beforereplacing the adapter ordevice,
removetheFRUsonebyonetoseeifthesymptomschange.Replaceonly
theFRUthatchangedthesymptoms.
Attention:
The setup configuration on the computer you are servicingmay
havebeencustomized.RunningAutomaticConfigurationmayalter the
settings.Notethecurrentcongurationsettings(usingtheViewConguration
option);then,whenservicehasbeencompleted, verify thatthosesettings
remainineffect.
Strategy for replacing a hard disk drive
Alwaystrytorunalow-levelformatbefore replacing aharddisk drive.This
willcauseallcustomerdataontheharddisktobelost.Makesurethatthe
customerhasacurrentbackupofthedatabeforeperformingthisaction.
Attention:
Thedrivestartupsequenceinthecomputeryouareservicingmay
havebeenchanged.Beextremelycarefulduringwriteoperations such as
copying,saving,orformatting.Ifyouselectanincorrectdrive,dataorprograms
canbeoverwritten.
Important notice for replacing a system board
Somecomponentsmountedonasystemboardarevery sensitive. Improper
handlingcancausedamagetothosecomponents,andmaycauseasystem
malfunction.
Attention:
Whenhandlingasystemboard:
• Donotdropthesystemboardorapplyanyexcessiveforcetoit.
• Avoidroughhandlingofanykind.
• Avoidbending thesystem board andhardpushing to prevent crackingat
eachBGA(BallGridArray)chipset.
18
G50-30/G50-45/G50-70/G50-70m/Z50-70/Z50-75 Hardware Maintenance Manual
Important information about replacing RoHS compliant FRUs
RoHS, The Restriction of Hazardous Substances in Electrical and
Electronic Equipment Directive (2002/95/EC) is a European Union legal
requirement affecting the global electronics industry. RoHS requirements
must be implemented on Lenovo products placed on the market after
June 2006. Products on the market before June 2006 are not required to
have RoHS compliant parts. If the original FRU parts are non-compliant,
replacement parts can also be non-compliant. In all cases if the original
FRU parts are RoHS compliant, the replacement part must also be RoHS
compliant.
Note:
RoHSandnon-RoHSFRUpartnumberswiththesametandfunction
areidentiedwithuniqueFRUpartnumbers.
LenovoplanstotransittoRoHS compliancewellbeforetheimplementation
dateandexpectsitssuppliersto be readytosupport Lenovo’srequirements
andscheduleintheEU.Productssoldin2005and2006 will contain some
RoHScompliantFRUs.Thefollowingstatementpertainstotheseproductsand
anyproductLenovoproducescontainingRoHScompliantFRUs.
RoHScompliantFRUshaveunique FRU partnumbers. Before orafterthe
RoHSimplementationdate,failedRoHScompliantpartsmustalwaysbe
replacedwithRoHScompliantones,soonlytheFRUsidentiedascompliant
inthesystemHMMordirectsubstitutionsforthoseFRUsmaybeused.
Products marketed before June 2006 Products marketed after June 2006
Current or
original part
Replacement FRU Current or
original part
Replacement FRU
Non-RoHS CanbeNon-RoHS
MustbeRoHS MustbeRoHS
Non-RoHS CanbeRoHS
Non-RoHS CansubtoRoHS
RoHS MustbeRoHS
Note:
AdirectsubstitutionisapartwithadifferentFRUpartnumberthatis
automaticallyshippedbythedistributioncenteratthetimeoftheorder.
19
General checkout
General checkout
Thischapterpresentsthefollowinginformation:
• “Whattodorst”onpage20
• “Powersystemcheckout”onpage21
Beforeyougotothecheckout,makesuretoreadthefollowingimportantnotes:
Important notes:
• Onlycertiedtrainedpersonnelcanservicethecomputer.
• BeforereplacinganyFRU,readtheentirepageonremovingandreplacing
FRUs.
• CarefullyremovescrewsforreusewhenreplacingFRUs.
• Beextremelycarefulduringsuchwriteoperationsascopying,saving,or
formatting. Drives in the computer that you are servicing sequence might
have been altered. If you select an incorrect drive, data or programs might be
overwritten.
• ReplaceanFRUonlywithanotherFRUofthecorrectmodel. When you
replace an FRU, make sure that the machine model and the FRU part number are
correct by referring to the FRU parts list.
• AnFRUshouldnotbereplacedjustbecauseofasingle,unreproduciblefailure.
Single failures can occur for a variety of reasons that have nothing to do with a
hardware defect, such as cosmic radiation, electrostatic discharge, or software
errors. Consider replacing an FRU only when a problem recurs. If you suspect that
an FRU is defective, clear the error logs and run the test again. If the error does
not recur, do not replace the FRU.
• BecarefulnottoreplaceanondefectiveFRU.
20
G50-30/G50-45/G50-70/G50-70m/Z50-70/Z50-75 Hardware Maintenance Manual
What to do rst
WhenyoudoreturnanFRU,youmustincludethefollowinginformationinthe
partsexchangeformorpartsreturnformthatyouattachtoit:
1. Nameandphonenumberofservicer
2. Dateofservice
3. Dateonwhichthemachinefailed
4. Dateofpurchase
5. ProcedureindexandpagenumberinwhichthefailingFRUwasdetected
6. FailingFRUnameandpartnumber
7. Machinetype,modelnumber,andserialnumber
8. Customer’snameandaddress
Note for warranty:
Duringthewarrantyperiod,the customer maybe
responsibleforrepaircostsifthecomputer damage wascaused by misuse,
accident,modification,unsuitablephysicaloroperatingenvironment,or
impropermaintenancebythecustomer.
Thefollowingisalistofsomecommon items thatarenotcovered under
warrantyandsomesymptomsthatmightindicatethat the system was
subjectedtostressbeyondnormaluse.
Beforecheckingproblemswiththecomputer,determinewhetherthedamageis
coveredunderthewarrantybyreferringtothefollowinglist:
The following are not covered under warranty:
• LCDpanelcrackedfromtheapplicationofexcessiveforceor from being
dropped
• Scratched(cosmetic)parts
• Distortion,deformation,ordiscolorationofthecosmeticparts
• Plasticparts,latches,pins,orconnectorsthathavebeencrackedorbroken
byexcessiveforce
• Damagecausedbyliquidspilledintothesystem
• DamagecausedbytheimproperinsertionofaPCCardortheinstallationof
anincompatiblecard
• Improperdiskinsertionoruseofanopticaldrive
• Diskettedrivedamagecausedbypressureonthediskette drive cover,
foreignmaterialinthedrive,ortheinsertionofadiskettewithmultiplelabels
• Damagedorbentdisketteejectbutton
• Fusesblownbyattachmentofanonsupporteddevice
• Forgottencomputerpassword(makingthecomputerunusable)
• Stickykeyscausedbyspillingaliquidontothekeyboard
• UseofanincorrectACadapteronlaptopproducts
The following symptoms might indicate damage caused by nonwarranted
activities:
• Missingpartsmightbeasymptomofunauthorizedserviceormodication.
• Ifthespindleofaharddiskdrivebecomesnoisy,itmayhavebeensubjected
toexcessiveforce,ordropped.
21
General checkout
Power system checkout
Toverifyasymptom,followthestepsbelow:
1. Turnoffthecomputer.
2. Removethebatterypack.
3. ConnecttheACadapter.
4. Makesurethatpowerissuppliedwhenyouturnonthecomputer.
5. Turnoffthecomputer.
6. DisconnecttheACadapterandinstallthechargedbatterypack.
7. Makesurethatthebatterypacksupplies power whenyouturnonthe
computer.
Ifyoususpectapowerproblem,seetheappropriateoneofthefollowingpower
supplycheckouts:
• “CheckingtheACadapter”onpage21
• “Checkingoperationalcharging”onpage21
• “Checkingthebatterypack”onpage22
Checking the AC adapter
YouareherebecausethecomputerfailsonlywhentheACadapterisused.
• Ifthepower-onindicatordoesnotturnon,checkthepowercordoftheAC
adapterforcorrectcontinuityandinstallation.
• Ifthecomputerdoesnotchargeduring operation, goto“Checking
operationalcharging”.
TochecktheACadapter,followthestepsbelow:
1. UnplugtheACadaptercablefromthecomputer.
2. MeasuretheoutputvoltageattheplugoftheACadaptercable.Seethe
followinggure:
1
2
9ROWDJH9'&

3LQ
Note:
OutputvoltagefortheACadapterpinNo.2maydifferfromtheoneyou
areservicing.
3. Ifthevoltageisnotcorrect,replacetheACadapter.
4. Ifthevoltageisacceptable,dothefollowing:
• Replacethesystemboard.
• Iftheproblempersists,goto“LenovoG50-30/G50-45/G50-70/G50-70m/
Z50-70/Z50-75”onpage26.
Note:
NoisefromtheACadapterdoesnotalwaysindicateadefect.
Checking operational charging
Tocheckwhetherthebatterychargesproperlyduringoperation,usea
dischargedbatterypackorabatterypackthathaslessthan50% of the total
powerremainingwheninstalledinthecomputer.
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Lenovo 59416331 Datasheet

Category
Notebooks
Type
Datasheet
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