Lenovo A540 All In One User Manual download pdf (Page 5)

Contents

Chapter1.Aboutthismanual......1

ImportantSafetyInformation..........1

Chapter2.Safetyinformation......3

Generalsafety................3

Electricalsafety...............3

Safetyinspectionguide............5

Handlingelectrostaticdischarge-sensitive

devices..................5

Groundingrequirements............6

Safetynotices................6

Chapter3.Generalinformation.....9

Speciﬁcations................9

Chapter4.GeneralCheckout.....11

Chapter5.UsingtheSetupUtility...13

StartingtheLenovoBIOSSetupUtilityprogram.13

Viewingandchangingsettings........13

Usingpasswords..............13

Enablingordisablingadevice........15

Selectingastartupdevice..........16

ExitingtheLenovoBIOSSetupUtilityprogram..17

Chapter6.Symptom-to-FRUIndex..19

Harddiskdrivebooterror..........19

PowerSupplyProblems...........19

POSTerrorcodes.............20

Undeterminedproblems...........20

Chapter7.Replacinghardware....21

Generalinformation.............21

Replacingthekeyboardandmouse......22

Replacingthepowercordorpoweradapter...22

Removingthebasecover..........23

Replacingtheharddiskdrive.........24

Replacingamemorymodule.........26

Replacingthesystemfan..........27

Replacingtheheat-sink...........28

Replacingthespeakersystem........29

Replacingthemotherboard..........30

Removingthehingefromthechassis......31

Removingtherearcover...........32

ReplacingtheTransformboard........35

ReplacingtheWi-Ficard...........36

Replacingthepowerswitchboard.......37

ReplacingtheNFCmodule..........38

Replacingthecamera............39

ReplacingtheLEDpanel...........40

A540FRUlists...............42

A740FRUlists...............46

Chapter8.Generalinformation....53

AdditionalServiceInformation........53

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