Lenovo Personal Computer 4155 Bedienungsanleitung Seite 114

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Seitenansicht 113
6.Installthenewfrontpanelconnectorsassemblyintothechassisandsecureitwiththescrew.
7.Reconnectthecablestothesystemboard.
8.Goto“CompletingtheFRUreplacement”onpage108.
Replacingthepowerswitch/LEDassembly
Attention
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkStationSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkStation
SafetyandWarrantyGuide,goto:
http://www.lenovo.com/support.
Thisproceduredescribeshowtoremoveandreplacethepowerswitch/LEDassembly.
1.Removethecomputercover.See“Removingthecover”onpage78.
2.Removethefrontbezel.See“Removingthefrontbezel”onpage82.
3.Disconnectthepowerswitch/LEDassemblycablefromthesystemboard.See“Locatingpartsonthe
systemboardonpage81.
4.Notethepowerswitch/LEDassemblycableroutingandthepositionofthetwoLEDs.
5.RemovetheswitchandtheLEDsfromthebezel.
6.Routethecableforthenewpowerswitch/LEDassemblythroughtheholeinthechassisandtothe
systemboard.
7.Installthenewpowerswitch/LEDassemblyintothebezel.MakesurethattheLEDsareinthecorrect
position.
8.Connectthepowerswitch/LEDcabletothesystemboard.
9.Reinstallthefrontbezel.
10.Goto“CompletingtheFRUreplacement”onpage138.
Replacingthebattery
Attention
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkStationSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkStation
SafetyandWarrantyGuide,goto:
http://www.lenovo.com/support.
Yourcomputerhasaspecialtypeofmemorythatmaintainsthedate,time,andsettingsforbuilt-infeatures,
suchasserial-portassignments(conguration).Abatterykeepsthisinformationactivewhenyouturn
offthecomputer.
Thebatterynormallyrequiresnochargingormaintenancethroughoutitslife;however,nobatterylasts
forever.Ifthebatteryfails,thedate,time,andcongurationinformation(includingpasswords)arelost.An
errormessageisdisplayedwhenyouturnonthecomputer.
Thissectionprovidesinformationonhowtoreplacethebattery.
Tochangethebattery,dothefollowing:
1.Openthecomputercover.See“Removingthecover”onpage78.
2.Accessthesystemboard.
3.Locatethebattery.See“Locatingpartsonthesystemboardonpage81.
106ThinkStationHardwareMaintenanceManual
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