Lenovo M90 User's Guide Page 30

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1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Disconnectthepowercordfromtheelectricaloutlet.
3.Disconnecttheacpoweradapterfromtheacpoweradapterconnectorontherearofyourcomputer.
See“Locatingconnectorsontherearofyourcomputeronpage7.
4.Connectthenewacpoweradaptertotheacpoweradapterconnectoronthechassisandanworkable
electricaloutlet.
Figure19.Connectingtheacpoweradapter
Whattodonext:
Toworkwithanotherpieceofhardware,gototheappropriatesection.
Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage25
.
Replacingtheacpoweradapterbracket
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkCentre
SafetyandWarrantyGuide,goto:
http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoreplacetheacpoweradapterbracket.
Toreplacetheacpoweradapterbracket,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallattacheddevicesandthecomputer.
2.Disconnectthepowercordfromtheelectricaloutlet.
3.Disconnecttheacpoweradapterfromtheacpoweradapterconnectorontherearofyourcomputer.
See“Locatingconnectorsontherearofyourcomputeronpage7.
4.Pressthemetalclip1asshownandthenliftthepoweradapterbracketuptoremoveitfromthechassis.
22ThinkCentreUserGuide
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