IdeaCentre Horizon 27 All-In-One PC Hardware Maintenance 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.Removetherearcover.Referto“Removingtherearcover”.
Step5.RemovetheEMIcover.Referto“RemovingtheEMIcover” .
Step6.Disconnectthebatterycablefromtheconnectoronmotherboard.Referto“Replacingthebattery” .
Step7.Removethefourscrewsthatsecurethespeakersystemtothechassis.
Step8.Disconnectthespeakercablefromtheconnectoronthemotherboard.
Step9.Toinstallthenewspeakersystem:
a.Attachthenewspeakersystemtothechassis,thensecureittothechassiswiththefour
screws.
b.Connectthenewspeakercabletotheconnectoronthemotherboard.
c.Reconnectthebatterycabletotheconnectoronthemotherboard.
Step10.ReattachtheEMIcoverandrearcover.
Replacingthesystemfans
Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthebasecover.
Toreplacethesystemfans:
Step1.Removeanymedia(disks,CDs,DVDsormemorycards)fromthedrives,shutdowntheoperating
system,andturnoffthecomputerandallattacheddevices.
Step2.Unplugallpowercordsfromelectricaloutlets.
Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)
cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.
Chapter8.Replacinghardware33