Lenovo C470 All in One User Manual Page 48

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WLANcard
TV-Tunercard
Heat-sink
Memorymodule
Step18.ReattachtheEMIcover,middlecover,opticaldrive,standholder,footcoverandstandbase.
Removingthemiddlecase
Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.
Note:Itmaybehelpfultoplacethecomputerface-downonasoftflatsurfaceforthisprocedure.Lenovo
recommendsthatyouuseablanket,towel,orothersoftclothtoprotectthecomputerscreenfromscratches
orotherdamage.
Toremovethemiddlecase:
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.Disconnectthepowerswitchboardcablefromtheconnector.
Step10.Removethetenscrewsthatsecurethemiddlecasetothechassis,thenliftupthemiddlecase
fromtheleftside(opticaldriveside)toremovethemiddlecase.
42LenovoC470All-In-OneComputerHardwareMaintenanceManual
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