Lenovo ThinkCentre Edge 91 - Replacing the Front Audio and USB Assembly

7.Pullonthetipsoftherubbermountsuntiltherearfanassemblyissecuredinplace.
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Figure32.Installingtherearfanassembly
8.Connecttherearfanassemblycabletothesystemfanconnectoronthesystemboard.
9.Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage104.
ReplacingthefrontaudioandUSBassembly
Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Important
safetyinformation”onpage1.
ThissectionprovidesinstructionsonhowtoreplacethefrontaudioandUSBassembly.
ToreplacethefrontaudioandUSBassembly,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage79.
3.Removethefrontbezel.See“Removingandreinstallingthefrontbezel”onpage80.
4.LocatethefrontaudioandUSBassembly.
5.DisconnectthefrontaudioandUSBassemblycablesfromthesystemboard.See“Locatingpartson
thesystemboard”onpage77.
Note:Makesureyounotethelocationsofthecableswhenyoudisconnectthecablesfromthesystem
board.
Chapter8.ReplacingFRUs(MachineTypes:1852,1853,and1855)103