Lenovo Ideapad720 15Ikb Hmm 201707 User Manual Hardware Maintenance Ideapad 720 (Type 81AG) Laptop (ideapad) Type 81AG

User Manual: Lenovo Ideapad720-15Ikb Hmm 201707 Hardware Maintenance Manual - ideapad 720-15IKB 720-15IKB (Type 81AG) Laptop (ideapad) - Type 81AG 81AG

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Lenovo ideapad 720-15IKB

Hardware

Maintenance

Manual

Note:

• Before using this information and the product it supports, be sure to read the general information under

“Notices” on page 83.

First Edition (June 2017)

© Copyright Lenovo 2017. 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.

©2017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.........................22

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

Puttingthecomputertosleeporshuttingit

down.................................................................25

Puttingyourcomputertosleep.........................25

Shuttingdownthecomputer.............................26

Lenovo ideapad 720-15IKB ........................ 27

Specications............................................... 27

Statusindicators........................................... 29

Hotkeys......................................................... 30

FRUreplacementnotices............................. 31

Screwnotices.................................................. 31

RemovingandreplacinganFRU................. 32

1010Basecover...............................................33

1020Batterypack.............................................36

1030PCIExpressMiniCardforwireless

LAN...................................................................38

1040DIMM.......................................................40

1050HarddiskdriveandSSDcard................. 41

1060Speakers.................................................44

1070Fanandheatsinkassembly....................45

1080Uppercase.............................................. 48

1090I/Oboard,backupbatteryand

ngerprintboard...............................................51

1100

Systemboardandtouchpad.................... 55

1110LCDunit...................................................58

1120Integratedcameraandmicrophone

assembly...........................................................63

Locations...................................................... 64

Frontviewandright-sideview..........................64

BottomandLeft-sideview............................... 65

Partslist........................................................ 66

Overall..............................................................67

LCDFRUs........................................................79

Miscellaneousparts..........................................81

ACadapters......................................................81

Screws..............................................................81

Powercord........................................................81

Notices......................................................... 83

Trademarks.................................................. 84

iv

About this manual

Thismanualcontainsservice andreferenceinformationforthefollowing

Lenovoproduct:

Lenovo ideapad 720-15IKB

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ideapad720-15IKB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

2

ideapad 720-15IKB 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.

Safety information

4

ideapad 720-15IKB 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

ideapad 720-15IKB 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-specic 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.

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ideapad 720-15IKB Hardware Maintenance Manual

Safety notice 2

DANGER

Some standby batteries contain a small amount of nickel and cadmium. Do not

disassemble a standby battery, recharge it, throw it into fire or water, or short-

circuit it. Dispose of the battery as required by local ordinances or regulations.

Use only the battery in the appropriate parts listing. Use of an incorrect battery can

result in ignition or explosion of the battery.

Certaines batteries de secours contiennent du nickel et du cadmium. Ne les

démontez pas, ne les rechargez pas, ne les exposez ni au feu ni à l’eau. Ne

les mettez pas en court-circuit. Pour les mettre au rebut, conformez-vous à la

réglementation en vigueur. Lorsque vous remplacez la pile de sauvegarde ou celle

de l’horloge temps réel, veillez à n’utiliser que les modèles cités dans la liste de

pièces détachées adéquate. Une batterie ou une pile inappropriée risque de prendre

feu ou d’exploser.

Die Bereitschaftsbatterie, die sich unter dem Diskettenlaufwerk befindet,

kann geringe Mengen Nickel und Cadmium enthalten. Sie darf nicht zerlegt,

wiederaufgeladen, kurzgeschlossen, oder Feuer oder Wasser ausgesetzt werden. Bei

der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Beim Ersetzen

der Bereitschafts-oder Systembatterie nur Batterien des Typs verwenden, der in der

Ersatzteilliste aufgeführt ist. Der Einsatz falscher Batterien kann zu Entzündung oder

Explosion führen.

Alcune batterie di riserva contengono una piccola quantità di nichel e cadmio. Non

smontarle, ricaricarle, gettarle nel fuoco o nell’acqua né cortocircuitarle. Smaltirle

secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni

locali). Quando si sostituisce la batteria dell’RTC (real time clock) o la batteria di

supporto, 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.

Algunas baterías de reserva contienen una pequeña cantidad de níquel y cadmio.

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. La utilización de una batería no apropiada puede

provocar la ignición o explosión de la misma.

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 né 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.

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ideapad 720-15IKB Hardware Maintenance Manual

Safety notice 4

DANGER

The lithium battery can cause a re, an explosion, or a severe burn. Do not recharge

it, remove its polarized connector, disassemble it, heat it above 100°C (212°F),

incinerate it, or expose its cell contents to water. Dispose of the battery as required

by local ordinances or regulations. Use only the battery in the appropriate parts

listing. Use of an incorrect battery can result in ignition or explosion of the battery.

La pile de sauvegarde contient du lithium. Elle présente des risques d’incendie,

d’explosion ou de brûlures graves. Ne la rechargez pas, ne retirez pas son

connecteur polarisé et ne la démontez pas. Ne l’exposez pas à une temperature

supérieure à 100°C, ne la faites pas brûler et n’en exposez pas le contenu à l’eau.

Mettez la pile au rebut conformément à la réglementation en vigueur. Une pile

inappropriée risque de prendre feu ou d’exploser.

Die Systembatterie ist eine Lithiumbatterie. Sie kann sich entzünden, explodieren

oder schwere Verbrennungen hervorrufen. Batterien dieses Typs dürfen nicht

aufgeladen, zerlegt, über 100 C erhitzt oder verbrannt werden. Auch darf ihr Inhalt

nicht mit Wasser in Verbindung gebracht oder der zur richtigen Polung angebrachte

Verbindungsstecker entfernt 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 di supporto e una batteria al litio e puo incendiarsi, esplodere o

procurare gravi ustioni. Evitare di ricaricarla, smontarne il connettore polarizzato,

smontarla, riscaldarla ad una temperatura superiore ai 100 gradi centigradi,

incendiarla o gettarla in acqua. Smaltirla secondo la normativa in vigore (DPR

915/82, successive disposizioni e disposizioni locali). L’impiego di una batteria

non adatta potrebbe determinare l’incendio o l’esplosione della batteria stessa.

La batería de repuesto es una batería de litio y puede provocar incendios,

explosiones o quemaduras graves. No la recargue, ni quite el conector polarizado,

ni la desmonte, ni caliente por encima de los 100°C (212°F), ni la incinere ni

exponga el contenido de sus celdas al agua. Deséchela tal como dispone la

normativa local.

11

Safety information

Safety notice 5

If the LCD breaks and the uid from inside the LCD gets into your eyes or on your

hands, immediately wash the affected areas with water at least for 15 minutes. Seek

medical care if any symptoms caused by the uid are present after washing.

Si le panneau d’afchage à cristaux liquides se brise et que vous recevez dans les

yeux ou sur les mains une partie du fluide, rincez-les abondamment pendant au

moins quinze minutes. Consultez un médecin si des symptômes persistent après le

lavage.

Die Leuchtstoffröhre im LCD-Bildschirm enthält Quecksilber. Bei der Entsorgung

die örtlichen Bestimmungen für Sondermüll beachten. Der LCD-Bildschirm

besteht aus Glas und kann zerbrechen, wenn er unsachgemäß behandelt wird

oder der Computer auf den Boden fällt. Wenn der Bildschirm beschädigt ist und

die darin befindliche Flüssigkeit in Kontakt mit Haut und Augen gerät, sollten

die betroffenen Stellen mindestens 15 Minuten mit Wasser abgespült und bei

Beschwerden anschließend ein Arzt aufgesucht werden.

Nel caso che caso l’LCD si dovesse rompere ed il liquido in esso contenuto

entrasse in contatto con gli occhi o le mani, lavare immediatamente le parti

interessate con acqua corrente per almeno 15 minuti; poi consultare un medico se i

sintomi dovessero permanere.

Si la LCD se rompe y el uido de su interior entra en contacto con sus ojos o sus

manos, lave inmediatamente las áreas afectadas con agua durante 15 minutos como

mínimo. Obtenga atención medica si se presenta algún síntoma del uido despues

de lavarse.

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ideapad 720-15IKB Hardware Maintenance Manual

Safety notice 6

DANGER

To avoid shock, do not remove the plastic cover that protects the lower part of the

inverter card.

An d’éviter tout risque de choc électrique, ne retirez pas le cache en plastique

protégeant la partie inférieure de la carte d’alimentation.

Aus Sicherheitsgründen die Kunststoffabdeckung, die den unteren Teil der

Spannungswandlerplatine umgibt, nicht entfernen.

Per evitare scosse elettriche, non rimuovere la copertura in plastica che avvolge la

parte inferiore della scheda invertitore.

Para evitar descargas, no quite la cubierta de plástico que rodea la parte baja de la

tarjeta invertida.

Safety notice 7

DANGER

Though the main batteries have low voltage, a shorted or grounded battery can

produce enough current to burn personnel or combustible materials.

Bien que le voltage des batteries principales soit peu élevé, le court-circuit ou la

mise à la masse d’une batterie peut produire sufsamment de courant pour brûler

des matériaux combustibles ou causer des brûlures corporelles graves.

Obwohl Hauptbatterien eine niedrige Spannung haben, können sie doch bei

Kurzschluß oder Erdung genug Strom abgeben, um brennbare Materialien zu

entzünden oder Verletzungen bei Personen hervorzurufen.

Sebbene le batterie di alimentazione siano a basso voltaggio, una batteria in

corto circuito o a massa può fornire corrente sufficiente da bruciare materiali

combustibili o provocare ustioni ai tecnici di manutenzione.

Aunque las baterías principales tienen un voltaje bajo, una batería cortocircuitada

o con contacto a tierra puede producir la corriente suciente como para quemar

material combustible o provocar quemaduras en el personal.

13

Safety information

Safety notice 8

DANGER

Before removing any FRU, turn off the computer, unplug all power cords from

electrical outlets, remove the battery pack, and then disconnect any interconnecting

cables.

Avant de retirer une unité remplaçable en clientèle, mettez le système hors tension,

débranchez tous les cordons d’alimentation des socles de prise de courant, retirez la

batterie et déconnectez tous les cordons d’interface.

Die Stromzufuhr muß abgeschaltet, alle Stromkabel aus der Steckdose gezogen,

der Akku entfernt und alle Verbindungskabel abgenommen sein, bevor eine FRU

entfernt wird.

Prima di rimuovere qualsiasi FRU, spegnere il sistema, scollegare dalle prese

elettriche tutti i cavi di alimentazione, rimuovere la batteria e poi scollegare i cavi

di interconnessione.

Antes de quitar una FRU, apague el sistema, desenchufe todos los cables de las

tomas de corriente eléctrica, quite la batería y, a continuación, desconecte cualquier

cable de conexión entre dispositivos.

14

ideapad 720-15IKB 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 xo 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

ideapad 720-15IKB 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.

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ideapad 720-15IKB 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:Adirect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.

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ideapad 720-15IKB 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22

• “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:

Pin Voltage (V dc)

1 20V/2.25A

2 15V/3A

39V/2A

45V/2A

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ideapad720-15IKB”onpage27.

Note:NoisefromtheACadapterdoesnotalwaysindicateadefect.

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ideapad 720-15IKB Hardware Maintenance Manual

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.

Performoperationalcharging.Ifthebattery statusindicator oricondoesnot

lighton,removethebatterypackandletitreturntoroomtemperature.Reinstall

thebatterypack.Ifthecharge indicatororiconisstilloff,replacethe battery

pack.

Ifthechargeindicatorstill doesnotlight on,replacethe systemboard.Then

reinstallthebatterypack.Ifitisstillnotcharged,gotothenextsection.

Checking the battery pack

BatterychargingdoesnotstartuntilthePowerMetershowsthatlessthan95%

ofthetotalpowerremains;underthisconditionthebatterypackcanchargeto

100%ofitscapacity.Thisprotectsthebatterypackfrombeingoverchargedor

fromhavingashortenedlife.

Tocheckyourbattery,moveyour cursortothePowerMeter iconintheicon

trayoftheWindows®taskbarandwaitforamoment(butdonotclickit),andthe

percentageofbatterypowerremainingisdisplayed.Togetdetailedinformation

aboutthebattery,double-clickthePowerMetericon.

Note:Ifthebatterypackbecomes hot,itmaynotbe abletobecharged.

Removeitfromthecomputerandleaveitatroomtemperatureforawhile.After

itcoolsdown,reinstallandrechargeit.

23

Related service information

Related service information

Thischapterpresentsthefollowinginformation:

• “RestoringthefactorycontentsbyusingOneKeyRecovery”onpage23

• “Passwords”onpage24

• “Powermanagement”onpage25

Restoring the factory contents by using OneKey Recovery

Restore of factory default

TheLenovoideapad720-15IKBcomputerscomewithpre-installedOneKey

RecoverySystem.Inordertosave applicationfilesandtheinitial backed

upfilesofthesystem,thehard diskina Lenovocomputerincludes a

hiddenpartitionwhenitisshipped.Ifyouneedto restorethesystem to

thepointofyour firstbootup, justenterLenovo OneKeyRecoverySystem

andrunSystem Recovery.For detailsofOneKeyRecoverySystem,

seethe User Guide for Lenovo OneKey Recovery system.

Note: This will delete all the new data on the system partition (C drive), which

is not recoverable. Make sure to back up your critical data before you perform this

action.

Whenyouusetherecoverydiscstobootyourcomputer,thesystemwillenter

theuserinterfaceforsystemrecoveryautomatically.Pleasefollow theprompt

toinsertthebackupdiscstocompletethewholerecoveryprocess.

Note:The recovery process might take up to 2 hours.

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ideapad 720-15IKB Hardware Maintenance Manual

Passwords

Asmany asthreepasswords maybeneededforanyLenovocomputer:

thepower-onpassword(POP),the harddiskpassword (HDP),andthe

administratorpassword.

Ifanyofthesepasswordshasbeenset,apromptforitappearsonthescreen

wheneverthecomputeris turnedon.Thecomputerdoesnotstartuntilthe

passwordisentered.

Power-on password

Apower-onpassword(POP)protectsthesystem frombeingpoweredonby

anunauthorized person.The passwordmustbe enteredbeforeanoperating

systemcanbebooted.

Hard-disk password

Therearetwohard-diskpasswords(HDPs):

+UserHDP-fortheuser

+MasterHDP-forthe systemadministrator,who canuseit togetaccess to

theharddiskdriveeveniftheuserhaschangedtheuserHDP

Attention:Iftheuser HDPhasbeenforgotten,checkwhethera masterHDP

hasbeenset.If ithas,itcanbe usedforaccesstothe harddiskdrive.If

nomasterHDPisavailable,neither LenovonorLenovoauthorizedservice

techniciansprovideanyservicestoreseteithertheuserorthemasterHDP,or

torecoverdatafromthehard diskdrive.Theharddiskdrivecanbe replaced

forascheduledfee.

Administrator password

Administratorpasswordcontrolsthe accessofthewholesetup utility.Only

aftertheAdministratorpasswordhasbeensetcantheUserpasswordbeset.If

Administratorpasswordwascleared,theUserpasswordwasclearedtoo.

25

Related service information

Power management

Note:PowermanagementmodesarenotsupportedforAPMoperatingsystem.

Toreducepower consumption,thecomputerhastwopowermanagement

modes:sleep(standby),andhibernation.

Putting the computer to sleep or shutting it down

Whenyouhavenishedworkingwithyourcomputer,youcanputittosleepor

shutitdown.

Putting your computer to sleep

Ifyouwillbeawayfromyourcomputerforonlyashorttime,putthecomputer

tosleep.

Whenthecomputerisinsleep mode,you canquicklywakeittoresumeuse,

bypassingthestartupprocess.

Toputthecomputertosleep,dooneofthefollowing:

• Closethedisplaylid.

• PressandholdthePowerkeyforabout1to5seconds.

• Movethe cursortothe lower-leftcorner,andthen selecttheStart button.

SelectPower → Sleep.

Note:Putyourcomputertosleepbeforeyoumoveit.Movingyourcomputer

whiletheharddiskdriveisspinningcandamagetheharddisk,causing

lossofdata.

Towakeupthecomputer,performthefollowing:

• Pressanykeyonthekeyboard.

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ideapad 720-15IKB Hardware Maintenance Manual

• Right-clickorpresstheStartbuttoninthelower-leftcornerandselectShut

down or sign out→Shut down.

Shutting down the computer

Ifyouarenotgoingtouseyourcomputerforalongtime,shutitdown.

Toshutdownyourcomputer,dooneofthefollowing:

• SelecttheStartbutton,thenselectPower → Shut down.

27

Lenovo ideapad 720-15IKB

Lenovo ideapad 720-15IKB

Thischapter presentsthefollowingproduct-specific servicereferencesand

product-specicpartsinformation:

• “Specications”onpage27

• “Statusindicators”onpage29

• “Hotkeys”onpage30

• “FRUreplacementnotices”onpage31

• “RemovingandreplacinganFRU”onpage32

• “Locations”onpage64

• “Partslist”onpage66

Specications

Thefollowingtablelists thespecificationsoftheLenovoideapad720-

15IKB:

Table 1. Specications

Form Factor

Dimensions Appr.362.5mm×255mm×21.7mm

Weight Appr.2.1kgwithbattery

LCDsize 15.6-inch

Processor

Seethesystempropertiesofyourcomputer,youcandothisasfollows:

ClickControl Panel,thenclickHardware and Sound,clickDevice Manager

underDevices and PrintersanddoubleclickProcessors.

Memory

Typeandspeed DDR4-2133MHz(onselectmodels)

Maximum

supportedcapacity 16GB

Slots SODIMM×1,onboard×1

Hard disk drive

Formfactor 2.5-inch,7mm

Capacity HDD:1TB/2TB

SSD:128GB/256GB

Interface SATA3/PCIE

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ideapad 720-15IKB Hardware Maintenance Manual

Table 1. Specications (continued)

Display

Displayresolution

(LCD) 16:9(1,366×768/1,920×1,080pixels)

LCDbacklight LED

I/O Ports

USB USB3.0×2,Type-C×1(USB3.0)

Audio Comboaudiojack×1

Communication RJ-45×1

Video/Audio HDMIslot×1

Memorycardslot 4in1slot×1(SD/SDHC/SDXC/MMC)

Battery pack

Type Polymer

Cells/Capacity 3Cell/45W

Note: Thecapacitygivenhereisthetypicaloraveragecapacityasmeasuredina

specictestenvironment.Capacitiesmeasuredinotherenvironmentsmay

differbutarenolowerthantheratedcapacity(seeproductlabel).

AC power adapter

Input 100-240V,50-60Hz

Outputvoltage 20VDC

Power 90W

Miscellaneous

Camera HD

Security Kensingtonsecurityslot×1

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Lenovo ideapad 720-15IKB

Status indicators

Thesystemstatusindicatorsbelowshowthecomputerstatus:

ba

Table 2. Status indicators

1 Battery/Charging status indicator

AC power

adapter status

Indicator status Meaning

Disconnected

Off

Thecomputerisinsleepmodeor

turnedoff;Thebatteryhasmorethan

20%charge.

Solidamber Thebatteryhasbetween5%and

20%charge.

Fastblinkingamber Thebatteryhasbetween1%and5%

charge.

Connected

Slowblinkingamber

Thebatteryisbeingcharged.When

batterychargereaches20%,the

blinkingcolorchangestowhite.

Slowblinkingwhite

Thebatteryhasbetween20%and

80%chargeandisstillcharging.

Whenthebatteryreaches80%

chargethelightwillstopblinking.

Solidwhite

Thebatteryhasmorethan80%

charge,chargingwillcontinueuntil

thebatteryisfullycharged.

B Power status indicator

Indicator Indicator status Meaning

Power status

indicator

On(solidwhite) Thecomputerispoweredon.

Blinking Thecomputerisinsleepmode.

Off Thecomputerispoweredoff.

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ideapad 720-15IKB Hardware Maintenance Manual

Hotkeys

Youcanaccesscertainsystemsettingsquicklybypressingtheappropriate

hotkeys.

Table 3. Hotkeys

:

Mutes/unmutesthesound.

:Enables/disablesairplane

mode.

:

Decreasesthevolumelevel.

: Enables/disablescamera.

:

Increasesthevolumelevel.

:Locks/unlockstheLCD

screen.

:

Enables/disables

microphone.

:

Enablestheexternal

projectorordanglesthe

externaldisplay.

:

Refreshespage.

:Decreasesdisplay

brightness.

:

Enables/disablesthetouch

pad.

:Increasesdisplay

brightness.

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Lenovo ideapad 720-15IKB

FRU replacement notices

Thissection presentsnoticesrelatedto removingandreplacingparts. Read

thissectioncarefullybeforereplacinganyFRU.

Screw notices

Loosescrewscancauseareliabilityproblem.In theLenovocomputer,this

problemisaddressedwithspecialnylon-coatedscrewsthathavethefollowing

characteristics:

• Theymaintaintightconnections.

• Theydonoteasilycomeloose,evenwithshockorvibration.

• Theyarehardertotighten.

• Eachoneshouldbeusedonlyonce.

Dothefollowingwhenyouservicethismachine:

• Keepthescrewkitinyourtoolbag.

• CarefullyremovescrewsforreusewhenreplacingFRUs.

• Useatorquescrewdriverifyouhaveone.

Tightenscrewsasfollows:

• Plastic to plastic

 Turnanadditional 90°afterthe screwheadtouchesthesurfaceofthe

plasticpart:

more than 90°

(Cross-section)

• Logic card to plastic

 Turnanadditional180°after thescrewheadtouchesthe surfaceofthe

logiccard:

more than 180°

(Cross-section)

• Torque driver

 Ifyouhaveatorquescrewdriver,refertothe“Torque”columnforeachstep.

• Makesurethatyouusethecorrectscrews.Ifyouhaveatorquescrewdriver,

tightenallscrewsrmlytothetorqueshowninthetable.Carefully remove

screws for reuse when replacing FRUs. Make sure that all screws are

tightened rmly.

• Ensuretorque screwdriversarecalibrated correctlyfollowingcountry

specications.

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ideapad 720-15IKB Hardware Maintenance Manual

Removing and replacing an FRU

Thissectionpresentsexplodedgureswiththeinstructionstoindicate howto

removeandreplacetheFRU.Makesuretoobservethefollowinggeneralrules:

1. Donotattempttoserviceanycomputerunlessyouhavebeentrainedand

certied.Anuntrainedpersonrunstheriskofdamagingparts.

2. BeforereplacinganyFRU,review“FRUreplacementnotices”onpage31.

3. Beginby removinganyFRUsthathave toberemovedbeforethefailing

FRU.AnyofsuchFRUsarelistedatthetopofthepage.Removethemin

theorderinwhichtheyarelisted.

4. FollowthecorrectsequenceinthestepstoremovetheFRU,asgiveninthe

guresbythenumbersinsquarecallouts.

5. WhenturningascrewtoreplaceanFRU,turnitinthedirectionasgivenby

thearrowinthegure.

6. WhenremovingtheFRU,moveitinthedirectionas givenbythearrowin

thegure.

7. Toputthenew FRUinplace,reversetheremovalprocedures andfollow

anyofthenotesthatpertainto replacement.Forinformation about

connectingandarranginginternalcables,see“Locations”onpage64.

8. WhenreplacinganFRU,usethecorrectscrewasshownintheprocedures.

DANGER

Before removing any FRU, turn off the computer, unplug all power cords from

electrical outlets, remove the battery pack, and then disconnect any of the

interconnecting cables.

Attention:AfterreplacinganFRU,donotturnonthecomputeruntilyouhave

madesurethatallscrews,springs,andothersmallpartsareinplaceandnone

areloose insidethecomputer.Verifythis byshakingthe computergentlyand

listeningforrattlingsounds.Metallicpartsormetalakescan causeelectrical

shortcircuits.

Attention:Thesystem boardissensitiveto, andcanbe damagedby,

electrostaticdischarge. Beforetouchingit,establish personalgroundingby

touchingagroundpointwithonehandorusinganelectrostaticdischarge(ESD)

strap(P/N6405959)toremovepotentialshockreasons.

33

Lenovo ideapad 720-15IKB

1010 Base cover

Figure 1. Removal steps of base cover

Removethescrews1.

a

a

a

a

a

a

a

a

a

a

a

Step Screw (quantity) Color Torque

1M2×5mm,Phillips-head(11) Silver 1.7-2.2kgf.cm

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ideapad 720-15IKB Hardware Maintenance Manual

Figure 1. Removal steps of base cover (continued)

Removethebasecoverinthedirectionsshownbyarrows2and3.

b

b

b

b

c

35

Lenovo ideapad 720-15IKB

Note: Applying labels to the base cover

ThenewbasecoverFRUisshipped withakit containinglabelsofseveral

kinds.Whenyoureplacethebasecover,youneedtoapplythefollowing

labels:

Thefollowinglabelsneedtobepeeledofffromtheoldbasecoverandputon

thenewbasecover.

a Ratinglabel1

b Ratinglabel2

c GMLlabel

d OfcelabelforChina

e CNClabel68×6mmforArgentinaandArgentinalabel65×20mm

f

BTlabel32×10mmandWLlabel32×10mmforUS/Canada/Taiwan

g KCClabel43×24mmforKorea

h Postellabel15×10mmandDSidelabel26×10mmforIndonesia

i BISlabel40×10mmforIndia

j WL/BTlabel32×10mmforIsrael

k WL/BTlabel35×15mmforBrazil

l WLlabel20×10mmforSouthAfrica

Forsomemodels,youalsoneedtoapplyoneortwoFCClabels.Checkthe

oldbasecover;ifithasoneortwoFCClabels,ndduplicatesoftheminthe

labelkitandapplythemtothenewbasecover.

Forthelocationofeachlabel,refertothefollowinggures:

defg

hij k l

abc

d

36

ideapad 720-15IKB Hardware Maintenance Manual

1020 Battery pack

DANGER

Only use the battery specied in the parts list for your computer. Any other battery

could ignite or explode.

Foraccess,removetheseFRUsinorder:

• “1010Basecover”onpage33

Figure 2. Removal steps of battery pack

Detachthebatterypackconnectorinthedirectionshownbyarrow1.Remove

thescrews2.

b

b

bb

a

Step Screw (quantity) Color Torque

BM2×3mm,Phillips-head(3)battery---log

up

Silver 1.7-2.2kgf.cm

37

Lenovo ideapad 720-15IKB

Figure 2. Removal steps of battery pack (continued)

Removethebatterypackinthedirectionshownbyarrow3.

c

38

ideapad 720-15IKB Hardware Maintenance Manual

1030 PCI Express Mini Card for wireless LAN

Foraccess,removetheseFRUsinorder:

• “1010Basecover”onpage33

• “1020Batterypack”onpage36

Important:

The preinstalled WLAN module may only be replaced with a Lenovo approved

module in order to comply with FCC and IC regulations. Refer to Table 4 “Parts

list—Overall” on page 68 for Lenovo part numbers for the approved modules.

Figure 3. Removal steps of PCI Express Mini Card for wireless LAN

DisconnectthetwowirelessLANcables(black,white)1,andthenremovethe

screw2.

aa

b

Instep1,unplug thejacksbyusingthe removaltoolantennaRFconnector

(P/N:08K7159),orpickuptheconnectorswithyourngersandgentlyunplug

theminthedirectionshownbythearrows.

Notes:ThewirelessLANcardhas2cablesinstep1.

 ThewirelessLANcardinsomemodelsmighthave3cablesinstep1.

Step Screw (quantity) Color Torque

2M2×3mm,Phillips-head(1)wirelesscard---log

up

Bronze

1.7-2.2kgf.cm

39

Lenovo ideapad 720-15IKB

Figure 3. Removal steps of PCI Express Mini Card for wireless LAN (continued)

Removethecardinthedirectionshownbyarrow3.

c

When installing:

Plugtheblackcable (1st)(MAIN)into thejacklabeledMAIN,andthewhite

cable(2nd)(AUX)intothejacklabeledAUXonthecard.

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ideapad 720-15IKB Hardware Maintenance Manual

1040 DIMM

Foraccess,removetheseFRUsinorder:

• “1010Basecover”onpage33

• “1020Batterypack”onpage36

• “1030PCIExpressMiniCardforwirelessLAN”onpage38

Figure 4. Removal steps of DIMM

Releasethe twolatcheson bothedgesofthesocketatthe sametimein the

directionsshownbyarrows1,and thenunplugtheDIMMin thedirection

shownbyarrow2.

a

a

b

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Lenovo ideapad 720-15IKB

1050 Hard disk drive and SSD card

Foraccess,removetheseFRUsinorder:

• “1010Basecover”onpage33

• “1020Batterypack”onpage36

• “1030PCIExpressMiniCardforwirelessLAN”onpage38

• “1040DIMM”onpage40

Attention:

• Donotdroptheharddiskdriveorapplyanyphysicalshocktoit. The hard

disk drive is sensitive to physical shock. Improper handling can cause damage and

permanent loss of data.

• Before removing the drive, suggest the customer to backup all the information on

it if possible.

• Never remove the drive while the system is operating or in suspend mode.

Figure 5. Removal steps of hard disk drive and SSD card

Removethescrew1.

a

Step Screw (quantity) Color Torque

AM2×3mm,Phillips-head(1)

Bronze

1.7-2.2kgf.cm

42

ideapad 720-15IKB Hardware Maintenance Manual

Figure 5. Removal steps of hard disk drive and SSD card (continued)

RemovetheSSDcardinthedirectionshownbyarrowB.

b

DetachtheHDDconnectorinthedirectionsshownbyarrowCandD.Remove

thescrewsE.

d

c

e

e

e

Wheninstalling:MakesurethattheHDDconnectorisattachedrmly.

Step Screw (quantity) Color Torque

EM2×3mm,Phillips-head(3)

Bronze

1.7-2.2kgf.cm

43

Lenovo ideapad 720-15IKB

Figure 5. Removal steps of hard disk drive and SSD card (continued)

RemovetheharddiskdrivefromtheslotinthedirectionshownbyarrowF.

f

RemovethescrewsG.Detachthebracketfromtheharddiskdrive.

g

g

g

g

Step Screw (quantity) Color Torque

GM3×4mm,Phillips-head(4) Silver 2.2-2.7kgf.cm

44

ideapad 720-15IKB Hardware Maintenance Manual

1060 Speakers

Foraccess,removetheseFRUsinorder:

• “1010Basecover”onpage33

• “1020Batterypack”onpage36

• “1030PCIExpressMiniCardforwirelessLAN”onpage38

• “1040DIMM”onpage40

• “1050HarddiskdriveandSSDcard”onpage41

Figure 6. Removal steps of speakers

Unplugthespeakerconnector1.Thenremovethespeakers2.

b

b

a

When installing:Makesurethattheconnectorisattachedrmly.

45

Lenovo ideapad 720-15IKB

1070 Fan and heat sink assembly

Foraccess,removetheseFRUsinorder:

• “1010Basecover”onpage33

• “1020Batterypack”onpage36

• “1030PCIExpressMiniCardforwirelessLAN”onpage38

• “1040DIMM”onpage40

• “1050HarddiskdriveandSSDcard”onpage41

• “1060Speakers”onpage44

Figure 7. Removal steps of fan and heat sink assembly

Releasethecablesfromthecableguidesinthedirectionshownbyarrows1.

a

a

When installing:Route theantennacables alongthecableguides.As you

routethecables,makesurethattheyarenotsubjectedtoanytension.Tension

couldcausethecables tobedamagedbythe cableguides,orawire tobe

broken.

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ideapad 720-15IKB Hardware Maintenance Manual

Figure 7. Removal steps of fan and heat sink assembly (continued)

Unplugthefanconnector inthedirection shownbyarrow 2.Removethe

screw3andloosenthescrewsD.

c

c

d

dd

d

d

d

d

b

Step Screw (quantity) Color Torque

3M2×3mm,Phillipshead(2)fan---mb---logup

&fan---logup

Bronze

1.7-2.2kgf.cm

When installing:Makesurethattheconnectorisattachedrmly.

RemovethefanandheatsinkassemblyinthedirectionshownbyarrowE.Be

carefulnottodamagetheconnector.

47

Lenovo ideapad 720-15IKB

Figure 7. Removal steps of fan and heat sink assembly (continued)

a

b

When installing:Beforeyouattach thefanandheatsink assemblytothe

computer,applythermalgrease,atanamountof 0.2grams,tothe part

showninthegureabove.Eithertoomuchortoolittlegreaseapplicationcan

causeathermalproblemduetoimperfectcontactwithacomponent.

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ideapad 720-15IKB Hardware Maintenance Manual

1080 Upper case

Foraccess,removetheseFRUsinorder:

• “1010Basecover”onpage33

• “1020Batterypack”onpage36

• “1030PCIExpressMiniCardforwirelessLAN”onpage38

• “1040DIMM”onpage40

• “1050HarddiskdriveandSSDcard”onpage41

• “1060Speakers”onpage44

• “1070Fanandheatsinkassembly”onpage45

Figure 8. Removal steps of upper case

Removethescrews1.

aa

a

a

Step Screw (quantity) Color Torque

1M2.5×4mm,Phillips-head(4)leftsidehinge---

logup&rightsidehinge---logup Silver 2.2-2.7kgf.cm

49

Lenovo ideapad 720-15IKB

Figure 8. Removal steps of upper case (continued)

DetachtheLCDunitconnectorinthedirectionsshownbyarrows2andC.

c

b

OpenthehingeinthedirectionshownbyarrowsD.

d

d

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ideapad 720-15IKB Hardware Maintenance Manual

Figure 8. Removal steps of upper case (continued)

Removetheuppercase fromtheLCDmoduleinthedirectionsshown by

arrowE.

e

51

Lenovo ideapad 720-15IKB

1090 I/O board, backup battery and ngerprint board

Foraccess,removetheseFRUsinorder:

• “1010Basecover”onpage33

• “1020Batterypack”onpage36

• “1030PCIExpressMiniCardforwirelessLAN”onpage38

• “1040DIMM”onpage40

• “1050HarddiskdriveandSSDcard”onpage41

• “1060Speakers”onpage44

• “1070Fanandheatsinkassembly”onpage45

• “1080Uppercase”onpage48

Figure 9. Removal steps of I/O board, backup battery and ngerprint board

UnplugthebackupbatteryconnectorinthedirectionshownbyarrowA.

a

When installing:Makesurethattheconnectorisattachedrmly.

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ideapad 720-15IKB Hardware Maintenance Manual

Figure 9. Removal steps of I/O board, backup battery and ngerprint board (continued)

RemovethebackupbatteryinthedirectionshownbyarrowB.

RemovethescrewC.Detachtheconnectorsinthedirectionsshownbyarrow

DandE.

cc

e

d

Step Screw (quantity) Color Torque

3M2×3mm,Phillips-head(2)

Bronze

1.7-2.2kgf.cm

53

Lenovo ideapad 720-15IKB

Figure 9. Removal steps of I/O board, backup battery and ngerprint board (continued)

RemovetheI/OboardinthedirectionshownbyarrowF.

RemovethescrewG.Detachthengerprintboardconnectorinthedirections

shownbyarrowHandI.

g

i

h

Step Screw (quantity) Color Torque

GM2×2.5mm,Phillips-head(1) Bronze 1.7-2.2kgf.cm

54

ideapad 720-15IKB Hardware Maintenance Manual

Figure 9. Removal steps of I/O board, backup battery and ngerprint board (continued)

RemovethengerprintboardanditsbracketinthedirectionshownbyarrowJ.

j

55

Lenovo ideapad 720-15IKB

1100

System board and touch pad

Important notices for handling the system board:

When handling the system board, bear the following in mind.

• Be careful not to drop the system board on a bench top that has a hard surface,

such as metal, wood, or composite.

• Avoid rough handling of any kind.

• During the whole process, make sure not to drop or stack the system board.

• If you put a system board down, make sure to put it only on a padded surface such

as an ESD mat or conductive corrugated material.

Foraccess,removetheseFRUsinorder:

• “1010Basecover”onpage33

• “1020Batterypack”onpage36

• “1030PCIExpressMiniCardforwirelessLAN”onpage38

• “1040DIMM”onpage40

• “1050HarddiskdriveandSSDcard”onpage41

• “1060Speakers”onpage44

• “1070Fanandheatsinkassembly”onpage45

• “1080Uppercase”onpage48

• “1090I/Oboard,backupbatteryandngerprintboard”onpage51

Figure 10. Removal steps of system board and touch pad

Disconnecttheconnectorsinthedirectionsshownbyarrows1,BandC.

ThenremovethescrewsD.

b

d

a

d

c

Step Screw (quantity) Color Torque

DM2×3mm,Phillips-head(2)M/B---logup Bronze 1.7-2.2kgf.cm

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ideapad 720-15IKB Hardware Maintenance Manual

Figure 10. Removal steps of system board and touch pad (continued)

RemovethesystemboardinthedirectionshownbyarrowE.

e

RemovethescrewsF.

f

f

f

f

Step Screw (quantity) Color Torque

FM2×2.5mm,Phillips-head(4) Silver 1.7-2.2kgf.cm

57

Lenovo ideapad 720-15IKB

Figure 10. Removal steps of system board and touch pad (continued)

RemovethetouchpadinthedirectionshownbyarrowG.

g

58

ideapad 720-15IKB Hardware Maintenance Manual

1110 LCD unit

Foraccess,removetheseFRUsinorder:

• “1010Basecover”onpage33

• “1020Batterypack”onpage36

• “1030PCIExpressMiniCardforwirelessLAN”onpage38

• “1040DIMM”onpage40

• “1050HarddiskdriveandSSDcard”onpage41

• “1060Speakers”onpage44

• “1070Fanandheatsinkassembly”onpage45

• “1080Uppercase”onpage48

• “1090I/Oboard,backupbatteryandngerprintboard”onpage51

• “1100Systemboardandtouchpad”onpage55

Figure 11. Removal steps of LCD unit

RemovetheLCDfrontbezelinthedirectionshownbyarrows1.

a

a

a

a

a

a

a

a

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Lenovo ideapad 720-15IKB

Figure 11. Removal steps of LCD unit (continued)

Removethescrews2.Pullthehingecaptotherightsidetoreleasethehooks3.

b

c

b

b

Step Screw (quantity) Color Torque

BM2×2.5mm,Phillips-head(3) Silver 1.7-2.2kgf.cm

RemovethescrewsD.LifttheLCDmoduleslightly.Disconnecttheconnectorinthe

directionshownbyarrowE.ThenremovetheLCDmoduleF.

d

d

d

d

e

f

Step Screw (quantity) Color Torque

4M2×2mm,Phillips-head(4)lcdpanel---lcd

cover

Silver 1.7-2.2kgf.cm

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ideapad 720-15IKB Hardware Maintenance Manual

Figure 11. Removal steps of LCD unit (continued)

RemovethescrewsG.

gg

g

ggg

Step Screw (quantity) Color Torque

GM2×2mm,Phillips-head(6)lcdhinge---lcd

cover

Black 1.7-2.2kgf.cm

RemovetheLCDhingesinthedirectionshownbyarrowsH.

h

h

61

Lenovo ideapad 720-15IKB

Figure 11. Removal steps of LCD unit (continued)

DetachthecameraconnectorinthedirectionshownbyarrowI.

i

RemovetheLCDcableinthedirectionshownbyarrowsJ.

j

j

When installing:Makesurethattheconnectorisattachedrmlyandthatyou

donotpinchtheantennacableswhenyouattachtheLCDassembly.Routethe

LCDcablealongthecableguides.

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ideapad 720-15IKB Hardware Maintenance Manual

Figure 11. Removal steps of LCD unit (continued)

Peeloffthe adhesivetapesecuringtheantennaboards,releasethe cables

fromthecableguide, andthenremovetheantennaassemblyinthe direction

shownbyarrowsK.

k

k

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Lenovo ideapad 720-15IKB

1120 Integrated camera and microphone assembly

Foraccess,removetheseFRUsinorder:

• “1010Basecover”onpage33

• “1020Batterypack”onpage36

• “1030PCIExpressMiniCardforwirelessLAN”onpage38

• “1040DIMM”onpage40

• “1050HarddiskdriveandSSDcard”onpage41

• “1060Speakers”onpage44

• “1070Fanandheatsinkassembly”onpage45

• “1080Uppercase”onpage48

• “1090I/Oboard,backupbatteryandngerprintboard”onpage51

• “1100Systemboardandtouchpad”onpage55

• “1110LCDunit”onpage58

Figure 12. Removal steps of integrated camera and microphone assembly

Note:Theintegratedcameraandantennaassemblyisstuckonthetopcenter

oftheLCDcover.

Removetheintegratedcameraandantennaassemblyinthedirectionshown

byarrow1.

a

When installing:Sticktheintegratedcameraandantennaassemblytothetop

centeroftheLCDcoverandadjustitsplacementtomakesuretheconnectoris

attachedrmly.

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ideapad 720-15IKB Hardware Maintenance Manual

Locations

Front view and right-side view

1 Integratedcamera

2 Built-inmicrophone

3 Computerdisplay

4 WirelessLANantennas

5 Ventilationslots

6 Touchpad

7 Fingerprintreader(onselectmodels)

8 PowerKey

9 KensingtonSecurityslot

J USBport

K Memorycardslot

L Novobutton

f

g

c

e

d

h

i

j

k

l

a

b

b

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Lenovo ideapad 720-15IKB

Bottom and Left-side view

1 Speakers

2 Ventilationslots

3 ACpoweradapterjack

4 Battery/Chargingstatusindicator

5 RJ-45port

6 USBport

7 HDMIport

8 Type-Cport

9 Comboaudiojack

J Powerstatusindicator

d

f

e

g

h

i

aj

b

c

66

ideapad 720-15IKB Hardware Maintenance Manual

Parts list

Thissectionpresentsthefollowingserviceparts:

• “Overall”onpage67

• “LCDFRUs”onpage79

• “Miscellaneousparts”onpage81

• “ACadapters”onpage81

• “Screws”onpage81

• “Powercord”onpage81

Note:

Each FRU is available for all types or models, unless specic types or models are

specied.

Attention:

DonotattempttoreplaceanFRUonyourown.IfanFRUisdamaged,contact

aLenovoauthorizedserviceroramarketing representativeforreplacement

orrepair.Onlyqualiedtechnicianscaninspectorrepairthisproduct.

67

Lenovo ideapad 720-15IKB

Overall

1

2

3

5

7

6

a

8

10

b

14

12

11

13

9

4

4

68

ideapad 720-15IKB Hardware Maintenance Manual

Table 4. Parts list—Overall

No. FRU FRU no. CRU

ID.

a-b See“Miscellaneousparts”onpage81.

1 LCDunit(see“LCDFRUs”onpage79).

2 UpperCaseW81AGW/KBNBLUS 5CB0P26383

N

2 UpperCaseW81AGW/KBNBLUK 5CB0P26373

2 UpperCaseW81AGW/KBNBLIT 5CB0P26365

2 UpperCaseW81AGW/KBNBLSP 5CB0P26372

2 UpperCaseW81AGW/KBNBLTR 5CB0P26262

2 UpperCaseW81AGW/KBNBLTI 5CB0P26378

2 UpperCaseW81AGW/KBNBLPO 5CB0P26240

2 UpperCaseW81AGW/KBNBLLA 5CB0P26300

2 UpperCaseW81AGW/KBNBLCF-E 5CB0P26293

2 UpperCaseW81AGW/KBNBLKO 5CB0P26238

2 UpperCaseW81AGW/KBNBLCH 5CB0P26358

2 UpperCaseW81AGW/KBNBLRU 5CB0P26375

2 UpperCaseW81AGW/KBNBLFR 5CB0P26260

2 UpperCaseW81AGW/KBNBLGR 5CB0P26266

2 UpperCaseW81AGW/KBNBLAR-E 5CB0P26359

2 UpperCaseW81AGW/KBNBLBZ 5CB0P26259

2 UpperCaseW81AGW/KBNBLNL 5CB0P26287

2 UpperCaseW81AGW/KBNBLGK 5CB0P26303

2 UpperCaseW81AGW/KBNBLHB 5CB0P26336

2 UpperCaseW81AGW/KBNBLHG 5CB0P26273

2 UpperCaseW81AGW/KBNBLND 5CB0P26404

2 UpperCaseW81AGW/KBNBLBE 5CB0P26393

2 UpperCaseW81AGW/KBNBLICE 5CB0P26282

2 UpperCaseW81AGW/KBNBLSA 5CB0P26255

2 UpperCaseW81AGW/KBNBLSW 5CB0P26376

2 UpperCaseW81AGW/KBNBLUI 5CB0P26394

2 UpperCaseW81AGW/KBNBLSK 5CB0P26309

2 UpperCaseW81AGW/KBNBLBU 5CB0P26395

2 UpperCaseW81AGW/KBNBLIN 5CB0P26246

2 UpperCaseW81AGW/KBNBLAR-FR 5CB0P26347

2 UpperCaseW81AGW/KBNBLUA 5CB0P26314

2 UpperCaseW81AGW/KBBLUS 5CB0P26305

2 UpperCaseW81AGW/KBBLUSA 5CB0P26244

2 UpperCaseW81AGW/KBBLUK 5CB0P26348

2 UpperCaseW81AGW/KBBLIT 5CB0P26396

2 UpperCaseW81AGW/KBBLSP 5CB0P26405

2 UpperCaseW81AGW/KBBLTR 5CB0P26278

2 UpperCaseW81AGW/KBBLTI 5CB0P26241

2 UpperCaseW81AGW/KBBLPO 5CB0P26298

2 UpperCaseW81AGW/KBBLLA 5CB0P26339

2 UpperCaseW81AGW/KBBLCF-E 5CB0P26247

2 UpperCaseW81AGW/KBBLKO 5CB0P26362

2 UpperCaseW81AGW/KBBLCH 5CB0P26366

2 UpperCaseW81AGW/KBBLRU 5CB0P26292

69

Lenovo ideapad 720-15IKB

Table 4. Parts list—Overall (continued)

No. FRU FRU no. CRU

ID.

2 UpperCaseW81AGW/KBBLFR 5CB0P26252

N

2 UpperCaseW81AGW/KBBLGR 5CB0P26320

2 UpperCaseW81AGW/KBBLAR-E 5CB0P26281

2 UpperCaseW81AGW/KBBLBZ 5CB0P26328

2 UpperCaseW81AGW/KBBLNL 5CB0P26268

2 UpperCaseW81AGW/KBBLGK 5CB0P26391

2 UpperCaseW81AGW/KBBLHB 5CB0P26370

2 UpperCaseW81AGW/KBBLHG 5CB0P26280

2 UpperCaseW81AGW/KBBLND 5CB0P26284

2 UpperCaseW81AGW/KBBLBE 5CB0P26322

2 UpperCaseW81AGW/KBBLICE 5CB0P26364

2 UpperCaseW81AGW/KBBLSA 5CB0P26265

2 UpperCaseW81AGW/KBBLSW 5CB0P26401

2 UpperCaseW81AGW/KBBLUI 5CB0P26335

2 UpperCaseW81AGW/KBBLCZ-SK 5CB0P26254

2 UpperCaseW81AGW/KBBLBU 5CB0P26286

2 UpperCaseW81AGW/KBBLIN 5CB0P26324

2 UpperCaseW81AGW/KBBLAR-FR 5CB0P26257

2 UpperCaseW81AGW/KBBLUA 5CB0P26310

2 UpperCaseW81AGW/KBNFPNBLUS 5CB0P26351

2 UpperCaseW81AGW/KBNFPNBLUK 5CB0P26371

2 UpperCaseW81AGW/KBNFPNBLIT 5CB0P26354

2 UpperCaseW81AGW/KBNFPNBLSP 5CB0P26313

2 UpperCaseW81AGW/KBNFPNBLTR 5CB0P26390

2 UpperCaseW81AGW/KBNFPNBLTI 5CB0P26341

2 UpperCaseW81AGW/KBNFPNBLPO 5CB0P26319

2 UpperCaseW81AGW/KBNFPNBLLA 5CB0P26357

2 UpperCaseW81AGW/KBNFPNBLCF-E 5CB0P26345

2 UpperCaseW81AGW/KBNFPNBLKO 5CB0P26269

2 UpperCaseW81AGW/KBNFPNBLCH 5CB0P26398

2 UpperCaseW81AGW/KBNFPNBLRU 5CB0P26332

2 UpperCaseW81AGW/KBNFPNBLFR 5CB0P26380

2 UpperCaseW81AGW/KBNFPNBLGR 5CB0P26264

2 UpperCaseW81AGW/KBNFPNBLAR-E 5CB0P26279

2 UpperCaseW81AGW/KBNFPNBLBZ 5CB0P26388

2 UpperCaseW81AGW/KBNFPNBLNL 5CB0P26271

2 UpperCaseW81AGW/KBNFPNBLGK 5CB0P26360

2 UpperCaseW81AGW/KBNFPNBLHB 5CB0P26294

2 UpperCaseW81AGW/KBNFPNBLHG 5CB0P26285

2 UpperCaseW81AGW/KBNFPNBLND 5CB0P26315

2 UpperCaseW81AGW/KBNFPNBLBE 5CB0P26321

2 UpperCaseW81AGW/KBNFPNBLICE 5CB0P26290

2 UpperCaseW81AGW/KBNFPNBLSA 5CB0P26389

2 UpperCaseW81AGW/KBNFPNBLSW 5CB0P26325

2 UpperCaseW81AGW/KBNFPNBLUI 5CB0P26263

2 UpperCaseW81AGW/KBNFPNBLSK 5CB0P26369

70

ideapad 720-15IKB Hardware Maintenance Manual

No. FRU FRU no. CRU

ID.

2 UpperCaseW81AGW/KBNFPNBLBU 5CB0P26274

N

2 UpperCaseW81AGW/KBNFPNBLIN 5CB0P26289

2 UpperCaseW81AGW/KBNFPNBLAR-FR 5CB0P26344

2 UpperCaseW81AGW/KBNFPNBLUA 5CB0P26317

2 UpperCaseW81AGW/KBNFPBLUS 5CB0P26272

2 UpperCaseW81AGW/KBNFPBLUSA 5CB0P26327

2 UpperCaseW81AGW/KBNFPBLUK 5CB0P26256

2 UpperCaseW81AGW/KBNFPBLIT 5CB0P26385

2 UpperCaseW81AGW/KBNFPBLSP 5CB0P26343

2 UpperCaseW81AGW/KBNFPBLTR 5CB0P26283

2 UpperCaseW81AGW/KBNFPBLTI 5CB0P26368

2 UpperCaseW81AGW/KBNFPBLPO 5CB0P26245

2 UpperCaseW81AGW/KBNFPBLLA 5CB0P26402

2 UpperCaseW81AGW/KBNFPBLCF-E 5CB0P26403

2 UpperCaseW81AGW/KBNFPBLKO 5CB0P26363

2 UpperCaseW81AGW/KBNFPBLCH 5CB0P26386

2 UpperCaseW81AGW/KBNFPBLRU 5CB0P26288

2 UpperCaseW81AGW/KBNFPBLFR 5CB0P26331

2 UpperCaseW81AGW/KBNFPBLGR 5CB0P26356

2 UpperCaseW81AGW/KBNFPBLAR-E 5CB0P26261

2 UpperCaseW81AGW/KBNFPBLBZ 5CB0P26318

2 UpperCaseW81AGW/KBNFPBLNL 5CB0P26377

2 UpperCaseW81AGW/KBNFPBLGK 5CB0P26349

2 UpperCaseW81AGW/KBNFPBLHB 5CB0P26311

2 UpperCaseW81AGW/KBNFPBLHG 5CB0P26250

2 UpperCaseW81AGW/KBNFPBLND 5CB0P26249

2 UpperCaseW81AGW/KBNFPBLBE 5CB0P26323

2 UpperCaseW81AGW/KBNFPBLICE 5CB0P26276

2 UpperCaseW81AGW/KBNFPBLSA 5CB0P26326

2 UpperCaseW81AGW/KBNFPBLSW 5CB0P26330

2 UpperCaseW81AGW/KBNFPBLUI 5CB0P26239

2 UpperCaseW81AGW/KBNFPBLCZ-SK 5CB0P26337

2 UpperCaseW81AGW/KBNFPBLBU 5CB0P26329

2 UpperCaseW81AGW/KBNFPBLIN 5CB0P26253

2 UpperCaseW81AGW/KBNFPBLAR-FR 5CB0P26291

2 UpperCaseW81AGW/KBNFPBLUA 5CB0P26270

2 US101KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M62983

2 UK102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63207

2 Italian102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63137

2 Spanish102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63041

2 Turkish102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63022

2 Thailand101KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63053

2 Portugue102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63135

2 LatinSpa102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63194

2 CanadFrEn102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63023

2 Korean101KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63163

Table 4. Parts list—Overall (continued)

71

Lenovo ideapad 720-15IKB

Table 4. Parts list—Overall (continued)

No. FRU FRU no. CRU

ID.

2 TradChine101KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63185

N

2 Russian101KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63001

2 French102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63076

2 German102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63126

2 Arabic101KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63065

2 Brazilian102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63103

2 Japanese105KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63179

2 Dutch102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63054

2 Greek101KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M62982

2 Hebrew101KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63118

2 Hungarian102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63102

2 Nordic102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63029

2 Belgian102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63215

2 Iceland102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63012

2 Slovenian102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M62988

2 Swiss102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63035

2 USInter101KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M62989

2 Czh-Slk102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63168

2 Bulgarian102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63187

2 India101KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63030

2 French-Arabic102KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63047

2 Ukrainia96KeyPC5CPJMEGreyKwithPowerkeyNormalKB SN20M63063

2 US101KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63090

2 UK102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63071

2 Italian102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63151

2 Spanish102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63086

2 Turkish102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63026

2 Thailand101KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63132

2 Portugue102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63121

2 LatinSpa102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63014

2 CanadFrEn102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63004

2 Korean101KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63220

2 TradChine101KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63097

2 Russian101KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63031

2 French102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63157

2 German102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63193

2 Arabic101KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63091

2 Brazilian102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63129

2 Japanese105KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63153

2 Dutch102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63093

2 Greek101KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63178

2 Hebrew101KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63162

2 Hungarian102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63084

2 Nordic102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63006

2 Belgian102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63105

2 Iceland102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63127

72

ideapad 720-15IKB Hardware Maintenance Manual

Table 4. Parts list—Overall (continued)

No. FRU FRU no. CRU

ID.

2 Slovenian102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63224

N

2 Swiss102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63040

2 USInter101KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63142

2 Czh-Slk102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63027

2 Bulgarian102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M62974

2 India101KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63039

2 French-Arabic102KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63072

2 Ukrainia96KeyPC5CPLiteonGreyKwithPowerkeyNormalKB SN20M63081

2 US101KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63110

2 UK102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63191

2 Italian102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M62986

2 Spanish102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63227

2 Turkish102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63069

2 Thailand101KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63005

2 Portugue102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63092

2 LatinSpa102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63206

2 CanadFrEn102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63099

2 Korean101KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63134

2 TradChine101KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63051

2 Russian101KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63125

2 French102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63190

2 German102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63044

2 Arabic101KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63174

2 Brazilian102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63197

2 Japanese105KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63050

2 Dutch102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63120

2 Greek101KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63201

2 Hebrew101KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M62998

2 Hungarian102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63177

2 Nordic102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63070

2 Belgian102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M62985

2 Iceland102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63222

2 Slovenian102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63107

2 Swiss102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63020

2 USInter101KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63048

2 Czh-Slk102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63150

2 Bulgarian102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63218

2 India101KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63211

2 French-Arabic102KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63202

2 Ukrainia96KeyPC5CPDarfonGreyKwithPowerkeyNormalKB SN20M63214

2 US101KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63203

2 UK102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63108

2 Italian102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63154

2 Spanish102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63166

2 Turkish102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63095

2 Thailand101KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63000

73

Lenovo ideapad 720-15IKB

Table 4. Parts list—Overall (continued)

No. FRU FRU no. CRU

ID.

2 Portugue102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63128

N

2 LatinSpa102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63188

2 CanadFrEn102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63111

2 Korean101KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63007

2 TradChine101KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63018

2 Russian101KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63062

2 French102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63083

2 German102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63112

2 Arabic101KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63219

2 Brazilian102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63164

2 Japanese105KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63052

2 Dutch102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63139

2 Greek101KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63046

2 Hebrew101KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63113

2 Hungarian102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63145

2 Nordic102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63045

2 Belgian102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63181

2 Iceland102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M62981

2 Slovenian102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63138

2 Swiss102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63115

2 USInter101KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M62975

2 Czh-Slk102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63204

2 Bulgarian102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63037

2 India101KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63061

2 French-Arabic102KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63228

2 Ukrainia96KeyPC5CPChiconyGreyKwithPowerkeyNormalKB SN20M63159

2 US101KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63141

2 US101KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB-forUSA SN20M63155

2 UK102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63058

2 Italian102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63025

2 Spanish102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M62991

2 Turkish102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63170

2 Thailand101KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63087

2 Portugue102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63064

2 LatinSpa102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63186

2 CanadFrEn102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63074

2 Korean101KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63221

2 TradChine101KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63080

2 Russian101KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63192

2 French102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63010

2 German102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63101

2 Arabic101KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63189

2 Brazilian102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63059

2 Japanese105KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63036

2 Dutch102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63106

2 Greek101KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63089

74

ideapad 720-15IKB Hardware Maintenance Manual

Table 4. Parts list—Overall (continued)

No. FRU FRU no. CRU

ID.

2 Hebrew101KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63123

N

2 Hungarian102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63148

2 Nordic102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M62987

2 Belgian102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63079

2 Iceland102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63043

2 Slovenian102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63100

2 Swiss102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63182

2 USInter101KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63034

2 Czh-Slk102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63094

2 Bulgarian102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63019

2 India101KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63098

2 French-Arabic102KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63169

2 Ukrainia96KeyPC5CPBJMEGreyKwithPowerkeyBacklightKB SN20M63124

2 US101KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63230

2 US101KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB-forUSA SN20M62996

2 UK102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M62977

2 Italian102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63060

2 Spanish102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63073

2 Turkish102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63232

2 Thailand101KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63033

2 Portugue102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63231

2LatinSpa102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M62979

2CanadFrEn102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M62976

2Korean101KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63171

2TradChine101KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63146

2Russian101KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63008

2French102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63226

2German102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63205

2Arabic101KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63184

2Brazilian102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63156

2Japanese105KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63195

2Dutch102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63175

2Greek101KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63119

2Hebrew101KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63049

2Hungarian102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63085

2Nordic102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63196

2Belgian102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63160

2Iceland102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63167

2Slovenian102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M62990

2Swiss102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63109

2USInter101KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63223

2Czh-Slk102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63158

2Bulgarian102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63210

2India101KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63082

2French-Arabic102KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M63068

2Ukrainia96KeyPC5CPBLiteonGreyKwithPowerkeyBacklightKB SN20M62973

75

Lenovo ideapad 720-15IKB

Table 4. Parts list—Overall (continued)

No. FRU FRU no. CRU

ID.

2US101KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63136

N

2US101KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB-forUSA SN20M63078

2UK102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63161

2Italian102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M62993

2Spanish102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63131

2Turkish102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63016

2Thailand101KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63144

2Portugue102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63075

2LatinSpa102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63143

2CanadFrEn102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63055

2Korean101KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63013

2TradChine101KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63003

2Russian101KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63213

2French102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63114

2German102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M62997

2Arabic101KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63009

2Brazilian102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63021

2Japanese105KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63180

2Dutch102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63117

2Greek101KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M62999

2Hebrew101KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63056

2Hungarian102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63038

2Nordic102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63116

2Belgian102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63217

2Iceland102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63017

2Slovenian102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63032

2Swiss102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63176

2USInter101KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63057

2Czh-Slk102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63216

2Bulgarian102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63002

2India101KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63130

2French-Arabic102KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63133

2Ukrainia96KeyPC5CPBDarfonGreyKwithPowerkeyBacklightKB SN20M63042

2US101KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63024

2US101KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB-forUSA SN20M63229

2UK102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63225

2Italian102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M62980

2Spanish102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63122

2Turkish102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63066

2Thailand101KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63149

2Portugue102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M62978

2LatinSpa102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63140

2CanadFrEn102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63208

2Korean101KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63077

2TradChine101KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63198

2Russian101KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63172

76

ideapad 720-15IKB Hardware Maintenance Manual

No. FRU FRU no. CRU

ID.

2French102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63088

N

2German102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M62984

2Arabic101KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63011

2Brazilian102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63183

2Japanese105KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63104

2Dutch102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63212

2Greek101KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63067

2Hebrew101KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63199

2Hungarian102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63209

2Nordic102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M62992

2Belgian102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63165

2Iceland102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63152

2Slovenian102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63173

2Swiss102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M62994

2USInter101KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63028

2Czh-Slk102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63147

2Bulgarian102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63096

2India101KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M63200

2French-Arabic102KeyPC5CPBChiconyGreyKwithPowerkeyBacklightKB SN20M62995

2Ukrainia96KeyPC5CPBChinconyGreyKwithPowerkeyBacklightKB SN20M63015

2DC-INCableW81AG 5C10P26267

3TPModuleW81AGW/Cable 5T60P26374

3TM-P3255-00169x104x1.00.5I2C ST60M57336

3SA469D-22H969x104x1.00.5I2C ST60M57453

4MBW81AGWINI37100G12G4G 5B20P26352

4MBW81AGWINI37100G14G4G 5B20P26277

4MBW81AGWINI37100P12G4G 5B20P26251

4MBW81AGWINI37100P14G4G 5B20P26333

4MBW81AGWINI37100G12G 5B20P26381

4MBW81AGWINI37100G14G 5B20P26355

4MBW81AGWINI37100P12G 5B20P26400

4MBW81AGWINI37100P14G 5B20P26296

4MBW81AGWINI57200G12G4G 5B20P26340

4MBW81AGWINI57200G14G4G 5B20P26397

4MBW81AGWINI57200P12G4G 5B20P26384

4MBW81AGWINI57200P14G4G 5B20P26237

4MBW81AGWINI57200G12G 5B20P26243

4MBW81AGWINI57200G14G 5B20P26316

4MBW81AGWINI57200P12G 5B20P26301

4MBW81AGWINI57200P14G 5B20P26338

4MBW81AGWINI77500G12G4G 5B20P26306

4MBW81AGWINI77500G14G4G 5B20P26342

4MBW81AGWINI77500P12G4G 5B20P26392

4MBW81AGWINI77500P14G4G 5B20P26379

4MBW81AGWINI77500G12G 5B20P26308

4MBW81AGWINI77500G14G 5B20P26275

Table 4. Parts list—Overall (continued)

77

Lenovo ideapad 720-15IKB

No. FRU FRU no. CRU

ID.

4MBW81AGWINI77500P12G 5B20P26297

N

4MBW81AGWINI77500P14G 5B20P26382

5M471A5644EB0-CRC SM30G16500

5HMA425S6AFR6N-UH SM30G16501

5MTA4ATF25664HZ-2G3B1 SM30G16502

5RMSA3270MB76H8F-2400 SM30G16503

5M471A5244CB0-CRC SM30M49902

5HMA851S6AFR6N-UH SM30G16505

5MTA4ATF51264HZ-2G3B1 SM30G16506

5RMSA3270MB86H9F-2400 SM30G16507

5M471A1K43CB1-CRC SM30M49901

5HMA81GS6AFR8N-UH SM30G16509

58GBD426SMTA8ATF1G64HZ-2G6H1 SM30K25288

58GBD426SRMSA3260MH78HAF-2666 SM30K25294

5M471A2K43CB1-CRC SM30M49903

5HMA82GS6AFR8N-UH SM30G16513

516GBD426SMTA16ATF2G64HZ-2G6H1 SM30K25289

6SeagateST1000LM0351T2.5"7mm5400rpmHDD 5H20L22184

6WD10SPCX-24HWST16G7mm1THDD 16200554

6TSBMQ02ABF1006G7mm5.4k1TBHDD 5H20G09709

6STRosewood2D7mm2TBHDD 5H20M37521

6DummyHDD SMC0P25909

6HDDCableW81AG 5C10P26299

7720-15Veco1224Speaker 5SB0N11746

8LowerCaseW81AG 5CB0P26302

9JYAA062A-PlatinumGrey SF30M82345

9MLE3M4-PlatinumGray SF30M97440

9FPFFCW81AG 5C10P26242

10 HeatsinkW81AGDIS 5H40P26307

11 I/OBoardW81AGW/Cable 5C50P26304

12 Intel31651x1AC+BTPCIEM.2WLAN SW10H24486

12 RTL8821CE1x1AC+BT4.2ComboM.2 SW10K97462

12 LtnNFA435A1x1AC+BTPCIEM.2WLAN SW10K97461

12 RTL8821CE1x1AC+BT4.2ComboM.2(non-Intel) SW10K97462

12 LtnNFA435A1x1AC+BTPCIEM.2WLAN(non-Intel) SW10K97461

12 Intel82652x2AC+BTPCIEM.2WLANNV SW10K97453

12 LiteonLtnNFA344A2x2AC+BT4.xPCIEM.2WLAN SW10K97465

12 LiteonLtnNFA344A2x2AC+BT4.xPCIEM.2WLAN(non-Intel) SW10K97465

13 PM961MZVLW128HEGRPCIE128GSSD 5SD0L73445

13 XG4128GBM.22280PCIe-NVMeTHNSN5128GPUKSSD 5SD0M56301

13 PM961MZVLW256HEHPPCIE256GSSD 5SD0L73444

13 Intel600p256GBM.22280PCIe-NVMeSSDPEKKW256G7SSD 5SD0M56358

13 XG4256GBM.22280PCIe-NVMeTHNSN5256GPUKSSD 5SD0M56299

13 PM961MZVLW512HMJPPCIE512GSSD 5SD0L73443

13 XG4512GBM.22280PCIe-NVMeTHNSN5512GPUKSSD 5SD0M56300

Table 4. Parts list—Overall (continued)

78

ideapad 720-15IKB Hardware Maintenance Manual

No. FRU FRU no. CRU

ID.

13 AM6671M.22280512GBPCIeLENSN20512GMSP34MEAT2TASSD 5SD0N26460

N

14 TeslaSP/AL14M3P2111.1V45Wh3cellGB 5B10K10186

14 TeslaSP/CL14M3P2111.1V45Wh3cellGB 5B10K10236

14 TeslaLGL14L3P2111.1V45Wh3cellbty 5B10M52817

Table 4. Parts list—Overall (continued)

79

Lenovo ideapad 720-15IKB

LCD FRUs

InLenovoideapad720-15IKB,thereisfollowingtypeofLCD.

• “15.6-in.HDLED”

1

2

5

4

8

7

6

3

80

ideapad 720-15IKB Hardware Maintenance Manual

Table 5. Parts list—LCD FRUs

No. FRU FRU no. CRU

ID.

1 LCDBezelW81AG 5B30P26353

N

2 HingeCoverW81AG 5CB0P26399

3 INN156BGA-EA3C1HDTAGSNB 5D10M42885

3 BONT156WHM-N45V8.0HDTAGSNB 5D10M42874

3 AUB156HAN02.11AFHDIAGSNB 5D10M53949

3 INN156HCA-EAAC1FHDIAGSNB 5D10M43965

3 LGLP156WF9-SPK2FHDIAGSNB 5D10M55963

4 HingeW81AGR+L 5H50P26387

5 CameraW81AGW/Gasket 5C20P26312

5 BISBNCT1NKSKHDNBcamera SC20M52081

5 CCYCNFGH43HDNBcamera SC20M52090

5 LTN6SF112N2HDNBcamera SC20M52113

5 AVCHAA-8F4A04HDNBcamera SC20M52091

6EDPCableW81AG 5C10P26350

7 AntennaW81AGMain/AUX 5A30P26295

8 LCDCoverW81AG 5CB0P26346

81

Lenovo ideapad 720-15IKB

Miscellaneous parts

Table 6. Parts list—Miscellaneous parts

FRU FRU no. CRU

ID.

Systemmiscellaneousparts:

N

• (a)HDDBracketW81AG 5B40P26258

• (b)FPBracketW81AG 5B40P26334

Note:Lettersinparenthesesarereferencestotheexplodedviewin“Overall”on

page67.

AC adapters

Table 7. Parts list—AC adapters

FRU P/N CRU

ID.

DeltaADLX90NDC3A20V4.5ACOO(WW) SA10M42754

*LiteonADLX90NLC3A20V4.5AADBIS(WW) 5A10J75109

ChiconyADLX90NCC3A20V4.5ACOO(WW) SA10M42797

Screws

Table 8. Parts list—screws

FRU P/N CRU

ID.

ScrewPackW81AG 5S10P26361 N

Power cord

Table 9. Parts list—power cord

FRU P/N CRU

ID.

LINETEKPC323+RVV300/300+LS151m 145000600

*

LINETEKLS15+H03VV-F+LP391m 145000599

LINETEKLS15+H03VV-F+LP-371m 145000597

LINETEKLS15H03VV-FLP26A1m 145000596

LINETEKLS15+H03VV-F+LP-411m 145000595

LINETEKLP-30B+SPT-2+LS151m 145000594

LINETEKLP-61L+H03VV-F+LS151m 145000593

LINETEKPE-361+H05VV-F+LS151m 145000592

LINETEKLS15+H03VV-F+PE-3361m 145000591

LINETEKLS15+H05VV-F+LP-E04A1m 145000590

LINETEKLS15+H03VV-F+LP-23A1m 145000589

LINETEKLS15+VCTF+LP-531m 145000588

LINETEKLS15+VCTF+LP-541m 145000587

LINETEKLS15+H03VV-F+PE-3641m 145000586

LINETEKLP-34+H03VV-F+LS151m 145000585

82

ideapad 720-15IKB Hardware Maintenance Manual

FRU P/N CRU

ID.

LongwellLSG-31+RVV300/300+LS-181m 145000568

*

LongwellLP-24+H03VV-F+LS-181m 145000567

LongwellLP-37+H03VV-F+LS-181m 145000565

LongwellLP-46+H03VV-F+LS-181m 145000564

LongwellLP-41+H03VV-F+LS-181m 145000563

LongwellLP-30B+SPT-218AWG+LS-181m 145000562

LongwellLP-61L+H03VV-F+LS-181m 145000561

LongwellLP-67+BIS+LS-181m 145000560

LongwellLP-22+H03VV-F+LS-181m 145000559

LongwellLP-486+KTLH03VV-F+LS-51m 145000558

LongwellLP-23A+LFC-3R+LS-181m 145000557

LongwellLP-71+VCTF+LS-331m 145000556

LongwellLP-54+VCTF+LS-181m 145000555

LongwellLP-39+H03VV-F+LS-181m 145000554

LongwellLP-34A+H03VV-F+LS-181m 145000553

VOLEXGB10S3+RVV300/500+VAC5S1m 145000538

VOLEXVA2073+H03VV-F+VAC5S1m 145000528

VOLEXMP232+H03VV-F+VAC5S1m 145000524

VOLEXCH10S3+H03VV-F+VAC5S1m 145000527

VOLEXSI16S3+H03VV-F+VAC5S1m 145000526

VolexUS15S3+SPT-2+VAC5S1m 145000537

VOLEXMP5004+H03VV-F+VAC5S1m 145000605

VOLEXIT10S3+HO3VV-F+VAC5S1m 145000535

VOLEXM2511+KETIIEC+VAC5S1m 145000533

VOLEXAU10S3+H03VV-F+VAC5S1m 145000532

VOLEXTW15CS3+VCTF+VAC5S1m 145000531

VOLEXVAC5S+VCTF+M7551m 145000530

VOLEXM2511+HO3VV-F+VAC5S1m 145000525

lux0036+RVV300/3000.75/3C+00021m 145500003

lux0040+H03VV-F0.75/3C+00111m 145500015

lux0027+H03VV-F0.75/3C+00111m 145500013

lux0034+H03VV-F0.75/3C+00111m 145500011

lux0041+H03VV-F0.75/3C+00111m 145500012

lux0014+SPT-260°C18/3C+00161m 145500002

lux0014+H03VV-F0.75/3C+00111m 5L60J33143

lux0031+H03VV-F0.75/3C+00111m 145500000

lux0046+IS6940.75/3C+00111m 145500004

lux0029+H03VV-F0.75/3C+00111m 145500009

lux0033+H03VV-F0.75/3C+00111m 145500008

lux0038+H03VV-F0.75/3C+00111m 145500006

lux0019+VCTF0.75/3C+00211m 145500007

lux0018(E)+VCTF0.75/3C+00211m 145500005

lux0044+H03VV-F0.75/3C+00111m 145500010

lux0033+H03VV-F0.75/3C+00111m 145500001

Table 9. Parts list—power cord (continued)

83

Notices

Notices

Lenovomaynotoffertheproducts,services,orfeaturesdiscussedinthis

documentinallcountries. ConsultyourlocalLenovorepresentativefor

informationontheproductsandservicescurrentlyavailable inyourarea.Any

referencetoaLenovoproduct,program,orserviceisnotintendedtostateor

implythatonlythat Lenovoproduct,program,orservicemaybeused.Any

functionallyequivalent product,program,or servicethatdoes notinfringe

anyLenovo intellectualpropertyrightmaybeusedinstead. However,itisthe

user’sresponsibilitytoevaluateand verifytheoperationofanyotherproduct,

program,orservice.

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describedinthisdocument.Thefurnishing ofthisdocument doesnotgiveyou

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LENOVOGROUPLTD.PROVIDESTHIS PUBLICATION “ASIS”

WITHOUTWARRANTYOFANYKIND,EITHER EXPRESSORIMPLIED,

INCLUDING,BUTNOTLIMITEDTO,THE IMPLIEDWARRANTIESOF NON-

INFRINGEMENT,MERCHANTABILITYORFITNESSFORAPARTICULAR

PURPOSE.Somejurisdictionsdo notallowdisclaimerofexpress orimplied

warrantiesincertaintransactions,therefore,thisstatementmaynotapplytoyou.

Thisinformation couldincludetechnicalinaccuracies ortypographicalerrors.

Changesareperiodicallymadetotheinformation herein;thesechanges

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improvementsand/or changesinthe product(s)and/orthe program(s)

describedinthispublicationatanytimewithoutnotice.

Theproductsdescribedinthisdocumentarenotintendedforusein

implantationorotherlifesupportapplications wheremalfunctionmayresultin

injuryordeathtopersons.Theinformationcontainedinthisdocumentdoesnot

affectorchange Lenovoproductspecications orwarranties.Nothinginthis

documentshalloperateasanexpressorimpliedlicenseorindemnityunderthe

intellectualpropertyrightsofLenovoorthirdparties.All informationcontained

inthisdocumentwasobtainedinspecicenvironmentsandispresentedasan

illustration.Theresultobtainedinotheroperatingenvironmentsmayvary.

Lenovomayuseor distributeanyoftheinformationyousupplyin anywayit

believesappropriatewithoutincurringanyobligationtoyou.

Anyreferencesinthispublicationto non-LenovoWebsitesareprovidedfor

convenienceonlyanddonotinanymannerserveasanendorsementofthose

Websites.Thematerials atthoseWebsitesarenotpartofthematerials for

thisLenovoproduct,anduseofthoseWebsitesisatyourownrisk.

84

ideapad 720-15IKB Hardware Maintenance Manual

Anyperformance datacontainedherein wasdeterminedina controlled

environment.Therefore,theresult obtainedinother operatingenvironments

mayvarysignificantly. Somemeasurementsmayhave beenmadeon

development-levelsystemsandthereisnoguaranteethatthesemeasurements

willbethesame ongenerallyavailablesystems.Furthermore,some

measurementsmayhavebeenestimatedthroughextrapolation.Actualresults

mayvary.Users ofthisdocumentshouldverifytheapplicabledatafortheir

specicenvironment.

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OneKey

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