Personal Computer User Manual

Note:Makesureyounotethelocationsofthecableswhenyoudisconnectthecablesfromthesystem
board.
6.RemovethescrewthatsecuresthefrontaudioandUSBassemblytothechassis.
Figure32.RemovingthesecuringscrewofthefrontaudioandUSBassembly
7.RemovethefrontaudioandUSBassemblyfromthechassis.
8.InstallanewfrontaudioandUSBassemblyintothechassisandalignthescrewholeinthefrontaudio
andUSBassemblywiththeholeinthechassis.
9.InstallthescrewtosecurethenewfrontaudioandUSBassemblytothechassis.
10.ReconnectthefrontaudioandUSBassemblycablestothefrontaudioconnectorandthefrontUSB
connectoronthesystemboard.See“Locatingpartsonthesystemboard”onpage10.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage38.
Replacingtheinternalspeaker
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkCentre
SafetyandWarrantyGuide,goto:
http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoreplacetheinternalspeaker.
Note:Notallcomputershavetheinternalspeaker.
Toreplacetheinternalspeaker,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
Chapter2.Installingorreplacinghardware35