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Personal Computer
Lenovo
A720
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32
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75 pages, 6.96 Mb
The
following
illustrationshows
the
location
of
connectors
and
components
on
the
back
of
the
motherboard.
23.
TV-Tunercard
connector
24.
Battery
26
IdeaCentreA720Hardware
Maintenance
Manual
Contents
Main
Page
Page
Page
Contents
Chapter1.Aboutthismanual......1
Chapter2.Safetyinformation......3
Chapter3.Generalinformation.....9
Chapter4.GeneralCheckout.....11 Chapter5.UsingtheSetupUtility...13
Page
Chapter1.Aboutthismanual
ImportantSafetyInformation
Page
Chapter2.Safetyinformation
Generalsafety
Electricalsafety
Page
Safetyinspectionguide
Handlingelectrostaticdischarge-sensitivedevices
Groundingrequirements
Safetynotices
Page
Page
Chapter3.Generalinformation
Specications
Page
Chapter4.GeneralCheckout
Page
Chapter5.UsingtheSetupUtility
StartingtheLenovoBIOSSetupUtilityprogram
Viewingandchangingsettings
Usingpasswords
Page
Enablingordisablingadevice
Selectingastartupdevice
ExitingtheLenovoBIOSSetupUtilityprogram
Page
Chapter6.Symptom-to-FRUIndex
Harddiskdrivebooterror
PowerSupplyProblems
POSTerrorcodes
Undeterminedproblems
Chapter7.Locatingconnectors,controlsandcomponents
Page
Page
Hardwarecomponents Thefollowingillustrationshowsthecomponentsthatmakeupyourcomputer.
24
Page
Page
Page
Page
Chapter8.Replacinghardware
Generalinformation
Replacingthekeyboardandmouse
Replacingthepowercordorpoweradapter
Removingthebasecover
Replacingtheharddiskdrive
Page
Replacingamemorymodule
Replacingthesystemfan
Replacingtheheat-sink
ReplacingtheCPU
Page
Replacingtheopticaldrive
Page
Replacingthesolidstatedisk
Replacingtheopticaldriveejectboard
Replacingthemotherboard
Page
Replacingthespeakersystem
Page
ReplacingtheTVtunercard
Replacingthebattery
Removingthehingefromthechassis
Page
Removingtherearcover
Replacingthescalarboard
Page
Replacingthetouchcontrolboard
Replacingtheconverterboard
Replacingthepowerswitchboard
ReplacingtheBluetoothmodule
ReplacingtheWLANcar d
Replacingthecamera
Replacingthefrontfunctionboard
ReplacingtheLEDpanel
Page
FRUlists
62
Page
64
Page
66
Page
Page
Chapter9.Generalinformation
AdditionalServiceInformation
