Lenovo Yoga 14 Technical Information download pdf (Page 3)

Contents

Aboutthismanual...........iii

Chapter1.Safetyinformation.....1

Generalsafety...............1

Electricalsafety..............1

Safetyinspectionguide...........2

Handlingdevicesthataresensitivetoelectrostatic

discharge.................3

Groundingrequirements...........4

Safetynotices(multilingualtranslations).....4

Chapter2.Importantservice

information..............19

StrategyforreplacingFRUs.........19

Strategyforreplacingaharddiskdrive,a

hybriddrive,orasolid-statedrive.....19

Importantnoticeforreplacingasystem

board................20

Howtouseerrormessage........20

StrategyforreplacingFRUsforCTO,specialbid

model,andstandardmodels.........20

Productdeﬁnition............20

FRUidentiﬁcation............21

Chapter3.Generalcheckout.....23

Whattodoﬁrst..............23

Checkoutguide..............24

LenovoSolutionCenter.........24

Quicktestprograms...........24

UEFIdiagnosticprogram.........25

Bootablediagnosticprograms.......26

Powersystemcheckout...........26

Checkingtheacpoweradapter......27

Checkingthebuilt-inbatteryandoperational

charging...............27

Checkingthecoin-cellbattery.......28

Chapter4.Relatedservice

information..............29

Restoringthefactorycontentsbyusingthe

RecoveryDiscSet.............29

RecoveryoverviewfortheWindows8and

Windows8.1operatingsystem........30

Refreshingyourcomputer........30

Resettingyourcomputertothefactorydefault

settings................31

Usingtheadvancedstartupoptions....31

RecoveringyouroperatingsystemifWindows

8orWindows8.1failstostart.......31

Creatingandusingrecoverymedia.....32

UsingtheWindowsrecoveryprogramsonthe

Windows8operatingsystem.........33

Passwords................34

Power-onpassword...........34

Harddiskpassword...........34

Supervisorpassword..........34

Howtoremovethepower-onpassword...35

Howtoremovetheharddiskpassword...35

Powermanagement............36

Screenblankmode(fortheWindows7

operatingsystemonly)..........36

Sleepmode..............36

Hibernationmode...........37

Symptom-to-FRUindex...........37

Numericerrorcodes..........38

Errormessages............39

Beepsymptoms............39

No-beepsymptoms...........40

LCD-relatedsymptoms.........40

Intermittentproblems..........40

Undeterminedproblems.........41

Chapter5.Statusindicators.....43

Chapter6.Functionkeys.......45

Chapter7.Locations.........47

Locatingcomputercontrols,connectors,and

indicators.................47

Frontview...............47

Bottomview..............48

Rearview...............48

LocatingCRUsandFRUs..........49

MajorCRUsandFRUs..........50

LCDFRUs..............52

MiscellaneouspartsandotherFRUs....53

LookingupFRUinformation.........53

Chapter8.FRUreplacement

notices................55

Screwnotices...............55

Retainingserialnumbers...........56

Restoringtheserialnumberofthesystem

unit.................56

RetainingtheUUID...........57

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