Replacingthepowersupplyassembly
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
onpagev.
Thissectionprovidesinstructionsonhowtoreplacethepowersupplyassembly.
Althoughtherearenomovingpartsinyourcomputerafterthepowercordhasbeendisconnected,the
followingwarningsarerequiredforyoursafetyandproperUnderwritersLaboratories(UL)certication.
CAUTION:
Hazardousmovingparts.Keepngersandotherbodypartsaway.
CAUTION:
Neverremovethecoveronapowersupplyoranypartthathasthefollowinglabelattached.
Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabel
attached.Therearenoserviceablepartsinsidethesecomponents.Ifyoususpectaproblemwith
oneoftheseparts,contactaservicetechnician.
Toreplacethepowersupplyassembly,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage34.
3.Disconnectthepowersupplyassemblycablesfromalldrivesandfromthe24-pinpowerconnectorand
4-pinpowerconnectoronthesystemboard.See“Locatingpartsonthesystemboard”onpage11.
Note:Youmightalsoneedtoreleasethepowersupplyassemblycablesfromsomecableclipsorties
thatsecurethecablestothechassis.
46ThinkCentreUserGuide