e.Installthememorymodule(s)tothenewmotherboard.
f.Installtheheat-sinktothenewmotherboard.
g.Installthesystemfanstothenewmotherboard.
h.Connecttheantennacable(s)totheTV-Tunercard.
i.Connectallthecablestothenewmotherboard.
Step20.ReattachtheEMIcover,middlecover,opticaldrive,computerstandandtherearcover.
ReplacingtheLEDpanelmodule
Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.
Note:Itmaybehelpfultoplacethecomputerface-downonasoftatsurfaceforthisprocedure.Lenovo
recommendsthatyouuseablanket,towel,orothersoftclothtoprotectthecomputerscreenfromscratches
orotherdamage.
ToreplacetheLEDpanelmodule:
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” .
Step9.Removetheconverter.Referto“Replacingtheconverter”.
Step10.Removethesystemfan.Referto“Replacingthesystemfan” .
Step11.Removetheheat-sink.Referto“Replacingtheheat-sink” .
Step12.RemovetheCPU.Referto“ReplacingtheCPU” .
Step13.Removethepowersupply.Referto“Replacingthepowersupply” .
Step14.Removethespeakersystem.Referto“Replacingthespeakersystem” .
Step15.RemovetheTV-Tunercard.Referto“ReplacingtheTV-Tunercard”.
Step16.RemovetheWi-Ficard.Referto“ReplacingtheWi-Ficard”.
Step17.Removethemotherboard.Referto“Replacingthemotherboard” .
Step18.Removethereardeco.Referto“Removingthereardeco” .
Step19.Removethecamera.Referto“Replacingthecamera” .
Step20.Removethetwoscrewsthatsecurethetwofeettothechassis,andslidethetwofeetoutwardto
removeit.
Step21.Detachthebelowcablesfromthechassis:
a.HarddiskpowerandSATAconnectorandcables
b.OpticalpowerandSATAconnectorandcables
c.Wi-Fiantennacables
50IdeaCentreB350–B355HardwareMaintenanceManual
