Replacingthepowersupplyassembly
Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafety
information”intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.Toobtainacopyofthe
ThinkCentreSafetyandWarrantyGuide,goto:
http://support.lenovo.com
Thissectionprovidesinstructionsonhowtoreplacethepowersupplyassembly.
Althoughtherearenomovingpartsinyourcomputerafterthepowercordhasbeendisconnected,the
followingwarningsarerequiredforyoursafetyandproperUnderwritersLaboratories(UL)certication.
CAUTION:
Hazardousmovingparts.Keepngersandotherbodypartsaway.
CAUTION:
Neverremovethecoveronapowersupplyoranypartthathasthefollowinglabelattached.
Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabel
attached.Therearenoserviceablepartsinsidethesecomponents.Ifyoususpectaproblemwith
oneoftheseparts,contactaservicetechnician.
Toreplacethepowersupplyassembly,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Removethecomputercover.See“Removingthecomputercover”onpage12.
3.Removethefrontbezel.See“Removingandreinstallingthefrontbezel”onpage13.
Chapter2.Installingorreplacinghardware27