Lenovo Personal Computer 4155 Manual do Utilizador descarregar pdf (Página 143)

6.Removethetwoscrewsthatsecurethefrontpanelconnectorsassemblytothechassisandthenrelease

thefrontpanelconnectorsassemblyfromthechassis.

7.Alignthescrewholesinthenewfrontpanelconnectorsassemblywiththeholesinthechassis.Install

thetwoscrewstosecuretheassembly.

8.Reconnectallthecablestothesystemboard.See“Locatingpartsonthesystemboard”onpage113.

9.Reinstalltheharddiskdrivefanbracketifremoved.

10.Reinstallthefrontbezel.

11.Goto“CompletingtheFRUreplacement”onpage108.

Replacingthepowerswitch/LEDassembly

Attention

Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”

intheThinkStationSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkStation

SafetyandWarrantyGuide,goto:

http://www.lenovo.com/support.

Thisproceduredescribeshowtoremoveandreplacethepowerswitch/LEDassembly.

1.Removethecomputercover.See“Removingthecover”onpage110.

2.Removethefrontbezel.See“Removingthefrontbezel”onpage114

3.Disconnectthepowerswitch/LEDassemblycablefromthesystemboard.See“Removingthefront

bezel”onpage114.

4.Notethepowerswitch/LEDassemblycableroutingandthepositionofthetwoLEDs.

5.RemovetheswitchandtheLEDsfromthebezel.

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Lenovo Personal Computer 4155 Manual do Utilizador Página 143