Lenovo C355 Specifications download pdf (Page 58)

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.Removethescrewthatsecurespowerswitchboardtothefrontbezel.

Step11.Disconnectthedatacablefromthepowerswitchboard.

Step12.Liftupthepowerswitchboardtoremoveit.

Step13.Toinstallthepowerswitchboard:

a.Lineuptheholeonthenewpowerswitchboardwiththemountingholeonthechassis,

thenplaceitintoposition.

b.Securethepowerswitchboardwiththescrew.

c.Connectthepowercabletothenewpowerswitchboard.

Step14.ReattachtheEMIcover,middlecover,opticaldrive,standholder,footcoverandstandbase.

Replacingthemotherboard

Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.

Note:Itmaybehelpfultoplacethecomputerface-downonasoftatsurfaceforthisprocedure.Lenovo

recommendsthatyouuseablanket,towel,orothersoftclothtoprotectthecomputerscreenfromscratches

orotherdamage.

52LenovoC355/C455All-In-OneComputerHardwareMaintenanceManual

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Lenovo C355 Specifications Page 58