Lenovo ThinkCentre Edge 72z - Replacing the Internal Speakers

Replacingtheinternalspeakers
Attention
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafety
information”intheSafety,Warranty,andSetupGuidethatcamewithyourcomputer.Toobtainacopyofthe
Safety,Warranty,andSetupGuide,goto:
http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoreplacetheinternalspeakers.
Toreplacetheinternalspeakers,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Placeasoft,cleantowelorclothonthedeskorotheratsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.
3.Removethecomputercover.See“Removingthecomputercover”onpage94.
4.Locatetheinternalspeakersinthecomputer.See“LocatingmajorFRUsandCRUs”onpage82.
5.Removethesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage101.
6.Notethelocationoftheinternalspeakercableconnectionandtheroutingoftheinternalspeakercables.
Disconnecttheinternalspeakercablesfromthesystemboard.
7.Removethetwoscrewsthatsecureeachinternalspeakertothefrontbezel,andthenremovethe
internalspeakersfromthecomputer.
Figure38.Removingtheinternalspeakers
8.Routethenewinternalspeakercables,andthenpositionthenewinternalspeakersonthefrontbezelso
thatthetwoscrewholesineachinternalspeakeralignwiththoseinthefrontbezel.
9.Reinstallthetwoscrewstosecureeachoftheinternalspeakerstothefrontbezel.
10.Connecttheinternalspeakercablestothesystemboard.See“Locatingpartsonthesystemboard”
onpage86.
11.Reinstallthesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage101.
12.Goto“Completingthepartsreplacement”onpage124.
Chapter9.ReplacingFRUs115