Owner manual

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.Disconnectthetwocablesfromtheconverter,andthenremovethetwoscrewsthatsecurethe
converterboardtothechassis.
Step10.Slidetheconverterboardouttoremoveit.
Step11.Toinstallthenewconverterboard:
a.Connectthetwocablestothenewconverterboard.
b.Alignthenslidethenewconverterboardintoposition.
c.Securethenewconverterboardwiththescrew.
Step12.Reattachthemiddlecover,opticaldrive,standholder,footcoverandstandbase.
RemovingtheEMIcover
Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.
Note:Itmaybehelpfultoplacethecomputerface-downonasoftflatsurfaceforthisprocedure.Lenovo
recommendsthatyouuseablanket,towel,orothersoftclothtoprotectthecomputerscreenfromscratches
orotherdamage.
ToreplacetheEMIcover
Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperating
system,andturnoffthecomputerandallattacheddevices.
32LenovoB50–35All-In-OneComputerHardwareMaintenanceManual