Lenovo IdeaCentre B550 All-in-One User Manual Page 45

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Step9.Disconnectthespeakercablefromtheconnectorsonmotherboard.
Step10.Detachthespeakersystemfromtherubberscrews.
Step11.Toinstallthenewspeakersystem:
a.Securethenewspeakersystemtothechassiswiththerubberscrews.
b.Connectthenewspeakercabletomotherboard.
Step12.ReattachtheEMIcover,middlecover,opticaldrive,computerstandandtherearcover.
ReplacingtheWi-Ficard
Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.
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.
Step4.Removetherearcover.Referto“Removingtherearcover”.
Step5.Removethecomputerstand.Referto“Removingthecomputerstand” .
Step6.Removetheopticaldrive.Referto“Replacingtheopticaldrive” .
Step7.Removethemiddlecover.Referto“Removingthemiddlecover”.
Step8.RemovetheEMIcover.Referto“RemovingtheEMIcover”.
Chapter8.Replacinghardware39
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