Lenovo ThinkCentre E73 - Page 152

Hazardousmovingparts.Keepngersandotherbodypartsaway.
CAUTION:
Neverremovethecoveronapowersupplyoranypartthathasthefollowinglabelattached.
Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabel
attached.Therearenoserviceablepartsinsidethesecomponents.Ifyoususpectaproblemwith
oneoftheseparts,contactaservicetechnician.
Toreplacethepowersupplyassembly,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage126.
3.Removethefrontbezel.See“Removingandreinstallingthefrontbezel”onpage127.
4.Pivotthedrivebayassemblyupward.Then,pivotthetwoplasticretainingclipsoutwardtoremove
theheatsinkfanductfromthefailingheatsinkandfanassembly.
3
4
5
6
Figure92.Removingtheheatsinkfanduct
5.Disconnectthepowersupplyassemblycablesfromalldrivesandfromthe24-pinpowerconnectorand
4-pinpowerconnectoronthesystemboard.See“Locatingpartsonthesystemboard”onpage79.
148ThinkCentreE73HardwareMaintenanceManual