Note:Itmaybehelpfultoplacethecomputerface-downonasoftatsurfaceforthisprocedure.Lenovo
recommendsthatyouuseablanket,towel,orothersoftclothtoprotectthecomputerscreenfromscratches
orotherdamage.
ToreplacetheLEDpanel:
Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperating
system,andturnoffthecomputerandallattacheddevices.
Step2.Unplugallpowercordsfromelectricaloutlets.
Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)
cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.
Step4.Removethebasecover.Referto“Removingthebasecover”.
Step5.Removethehingefromthechassis.Referto“Removingthehingefromthechassis” .
Step6.Removetherearcover.Referto“Removingtherearcover”.
Step7.Removethescalarboard.Referto“Replacingthescalarboard”.
Step8.Removethetouchcontrolboard.Referto“Replacingthetouchcontrolboard”.
Step9.Removetheconverterboard.Referto“Replacingtheconverterboard” .
Step10.Removethepowerswitchboard.Referto“Replacingthepowerswitchboard”.
Step11.RemovetheBluetoothmodule.Referto“ReplacingtheBluetoothmodule” .
Step12.RemovetheWi-Ficard.Referto“ReplacingtheWi-Ficard” .
Step13.RemovetheWi-Fiantennacablefromthefrontbezel.
Step14.Removethecamera.Referto“Replacingthecamera”.
Step15.Removethefrontfunctionboard.Referto“Replacingthefrontfunctionboard” .
58IdeaCentreA520All-In-OnePCHardwareMaintenanceManual
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