Replacingthefrontcontrolboard
Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.
Note:Itmaybehelpfultoplacethecomputerface-downonasoftatsurfaceforthisprocedure.Lenovo
recommendsthatyouuseablanket,towel,orothersoftclothtoprotectthecomputerscreenfromscratches
orotherdamage.
Toreplacethefrontcontrolboard:
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.Removethestandbase.Referto“Removingthestandbase” .
Step5.Removethefootcover.Referto“Removingthefootcover”.
Step6.Removetheopticaldrive.Referto“Replacingtheopticaldrive” .
Step7.Removethestandholder.Referto“Removingthestandholder”.
Step8.Removethemiddlecover.Referto“Removingthemiddlecover”.
Step9.RemovetheEMIcover.Referto“RemovingtheEMIcover” .
Step10.Removethespeakersystem.Referto“Replacingthespeakersystem” .
Step11.Removethescrewthatsecuresthefrontcontrolboardtothefrontbezel,
Step12.Disconnectthedatacablefromthefrontcontrolboard,thenliftupthefrontcontrolboard.
Step13.Toinstallthenewfrontcontrolboard:
a.Connectthedatacabletothenewfrontcontrolboard.
b.Lineupthenewfrontcontrolboardwiththefrontbezel,thenplaceitintoposition.
c.Securethefrontcontrolboardwiththescrew.
Chapter8.Replacinghardware51
