Lenovo ThinkCentre M91p - Solving Recovery Problems

6.RemovethetwoscrewsthatsecurethefrontaudioandUSBassemblytoitsbracket.Thenremovethe
failingfrontaudioandUSBassemblyfromthebracket.
7.InstallanewfrontaudioandUSBassemblyintothebracketandinstallthetwoscrewstosecurethe
frontaudioandUSBassemblytothebracket.
8.InstallthefrontaudioandUSBassemblybrackettothechassisandalignthescrewholeinthebracket
withthecorrespondingholeinthechassis.
9.InstallthescrewtosecurethefrontaudioandUSBassemblybrackettothechassis.
10.ReconnectthefrontUSBandfrontaudiocablestothesystemboard.See“Locatingpartsonthe
systemboard”onpage12.
11.Reinstallthefrontbezel.See“Removingandreinstallingthefrontbezel”onpage30.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage69.
Replacingtheinternalspeaker
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
onpagevii
.
Thissectionprovidesinstructionsonhowtoreplacetheinternalspeaker.
Note:Theinternalspeakerisonlyavailableinsomemodels.
Toreplacetheinternalspeaker,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Openthecomputercover.See“Openingthecomputercover”onpage30.
Chapter5.Installingorreplacinghardware63