Lenovo IdeaCentre B550 All-in-One User Manual Page 44

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Step8.RemovethesevenscrewsthatsecuretheEMIcovertothechassis.
Step9.LiftuptheEMIcoveruptoremoveit.
Step10.ToreinstalltheEMIcover:
a.LineuptheEMIcoverwiththemountingholesonthechassisandsecureitwiththeseven
screws.
Step11.Reattachthemiddlecover,opticaldrive,computerstandandtherearcover.
Replacingthespeakersystem
Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.
Toreplacethespeakersystem:
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”.
38IdeaCentreB550–B555HardwareMaintenanceManual
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