Thissectionprovidesinstructionsonhowtoreplacetheambientlightsensor.
Note:Theambientlightsensorisavailableonlyinsomemodels.
Toreplacetheambientlightsensor,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.
3.Removethecomputercover.See“Removingthecomputercover”onpage15.
4.Locatetheambientlightsensorinthecomputer.See“Componentlocations”onpage11.
5.Carefullyremovethetwoscrews1thatsecuretheambientlightsensorandthenlifttheambientlight
sensoroutofthecomputer.
Figure29.Removingtheambientlightsensor
6.Disconnecttheambientlightsensorcablefromthesystemboard.
7.Alignthescrewholesinthenewambientlightsensorwiththecorrespondingholesinthecomputer
andtheninstallthetwoscrewstosecuretheambientlightsensor.
8.Connectthenewambientlightsensorcabletothesystemboar d.See“Systemboardpartand
connectorlocations”onpage12.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage52.
38ThinkCentreUserGuide