Lenovo A720 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

Specications................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.Locatingconnectors,

controlsandcomponents......21

Chapter8.Replacinghardware....29

Generalinformation.............29

Replacingthekeyboardandmouse......30

Replacingthepowercordorpoweradapter...30

Removingthebasecover..........31

Replacingtheharddiskdrive.........32

Replacingamemorymodule.........34

Replacingthesystemfan..........34

Replacingtheheat-sink...........35

ReplacingtheCPU.............36

Replacingtheopticaldrive..........38

Replacingthesolidstatedisk.........40

Replacingtheopticaldriveejectboard.....40

Replacingthemotherboard..........41

Replacingthespeakersystem........43

ReplacingtheTVtunercard.........45

Replacingthebattery............46

Removingthehingefromthechassis......47

Removingtherearcover...........49

Replacingthescalarboard..........50

Replacingthetouchcontrolboard.......52

Replacingtheconverterboard........53

Replacingthepowerswitchboard.......54

ReplacingtheBluetoothmodule........55

ReplacingtheWLANcard..........56

Replacingthecamera............57

Replacingthefrontfunctionboard.......58

ReplacingtheLEDpanel...........59

FRUlists.................61

Chapter9.Generalinformation....69

AdditionalServiceInformation........69

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