11.Toinstallthenewsystemfanassemblyintothechassis,aligntheothertwoholesinthesystemfan
assemblywiththelongrubbermountsinthechassis.Pulltherubbermountsthroughtheholesinthe
systemfanassemblyuntilthesystemfanisinplace.
Figure27.Installingthesystemfanassembly
12.Slidethesystemboardtother earofthechassisandthenpivotthesystemboarduntilitsnapsinto
position.
13.Reconnectallcablesthatweredisconnectedfr omthesystemboard.
14.Goto“Completingthepartsreplacement”onpage98.
Replacingtheinternalspeaker
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreUserGuide.ToobtainacopyoftheThinkCentreUserGuide,got o:
http://www.lenovo.com/ThinkCentreUserGuides
Thissectionprovidesinstructionsonhowtoreplacetheinternalspeaker.
Toreplacetheinternalspeaker,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Openthecomputercover.See“Openingthecomputercover”onpage72.
3.Locatetheinternalspeaker.See“Locatingcomponents”onpage71.
4.Disconnecttheinternalspeakercablefromthesystemboard.See“Locatingpartsonthesystem
board”onpage71.
Chapter8.ReplacingFRUs91