Lenovo B50-30 All-in-One User Manual Page 39

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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.RemovethethreescrewsthatsecuretheEMIcovertothechassis,andthenliftitup.
Step10.ToreattachtheEMIcover:
a.LineuptheholesontheEMIcoverwithmountingholesonthechassis,thenplaceEMIcover
backintoposition.
b.SecuretheEMIcovertothechassiswiththreescrews.
Step11.Reattachthemiddlecover,opticaldrive,standholder,footcoverandstandbase.
ReplacingtheWi-Ficard
Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.
Note:Itmaybehelpfultoplacethecomputerface-downonasoftflatsurfaceforthisprocedure.Lenovo
recommendsthatyouuseablanket,towel,orothersoftclothtoprotectthecomputerscreenfromscratches
orotherdamage.
ToreplacetheWi-Ficard:
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.
Chapter7.Replacinghardware33
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