Cloud-9 PS/2 Keyboard Interface Guía de usuario Pagina 63

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4.Laythecomputeronitssideandremovethefourscrewsattherearofthechassisthatsecurethe
powersupplyassembly.
Figure24.Removingthescrewsforthepowersupplyassembly
5.Slidethepowersupplyassemblytothefrontofthecomputerandthenliftitoutofthechassis.
6.Makesurethatthenewpowersupplyassemblyisthecorrectreplacement.Somepowersupply
assembliesautomaticallysensethevoltage,somepowersupplyassembliesarevoltagespecic,and
somepowersupplyassemblieshaveavoltage-selectionswitch.Ifyourpowersupplyassemblyhas
avoltage-selectionswitch,makesurethatyousetthevoltage-selectionswitchtomatchthevoltage
availableatyourelectricaloutlet.Ifnecessary,useaballpointpentoslidethevoltage-selectionswitch
tothecorrectposition.
Ifthevoltagesupplyrangeinyourlocalcountryorregionis100–127Vac,setthevoltage-selection
switchto115V.
Ifthevoltagesupplyrangeinyourlocalcountryorregionis200–240Vac,setthevoltage-selection
switchto230V.
7.Installthenewpowersupplyassemblyintothechassissothatthescrewholesinthepowersupply
assemblyalignwiththoseinthechassis.
8.Installandtightenthefourscrewstosecurethepowersupplyassembly.
Note:UseonlyscrewsprovidedbyLenovo.
9.Reconnectthepowersupplyassemblycablestothesystemboardandeachofthedrives.
10.Securethepowersupplyassemblycableswiththecableclipsandtiesinthechassis.
Whattodonext:
Toworkwithanotherpieceofhardware,gototheappropriatesection.
Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage71.
Replacingthemicroprocessor
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
onpagev.
Chapter5.Installingorreplacinghardware51
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