Laptop User Manual
1130Systemboardassembly,fanassembly,andbackupbattery
Importantnoticesforhandlingthesystemboard:
Whenhandlingthesystemboard,bearthefollowinginmind.
•Thesystemboardhasanaccelerometer,whichcanbebrokenifseveralthousandsofG-forcesareapplied.
Note:Droppingasystemboardfromaheightofaslittleas6inchessothatitfallsatonahardbenchcansubject
theaccelerometertoasmuchas6,000G'sofshock.
•Becarefulnottodropthesystemboardonabenchtopthathasahardsurface,suchasmetal,wood,orcomposite.
•Ifasystemboardisdropped,youmusttestit,usingPC-DoctorforDOS,tomakesurethattheHDDActive
ProtectionSystem™stillfunctions.
Note:IfthetestshowsthattheHDDActiveProtectionSystemisnotfunctioning,besuretodocumentthedrop
inanyrejectreport,andreplacethesystemboard.
•Avoidroughhandlingofanykind.
•Ateverypointintheprocess,besurenottodroporstackthesystemboard.
•Ifyouputasystemboarddown,besuretoputitonlyonapaddedsurfacesuchasanESDmatoracorrugated
conductivesurface.
Afterreplacingthesystemboard,runPC-DoctorforDOStomakesurethattheHDDActiveProtectionSystem
stillfunctions.Theprocedureisasfollows:
1.Placethecomputeronahorizontalsurface.
2.RunDiagnostics➙ThinkPadDevices➙HDDActiveProtectionTest.
Attention:Donotapplyphysicalshocktothecomputerwhilethetestisrunning.
Foraccess,removetheseFRUsinorder:
•“1010Batterypack”onpage50
•“1020Bottomslotcover”onpage51
•“1040Harddiskdriveorsolidstatedriveassembly”onpage53
•“1070Keyboard”onpage57
•“1090Topcaseassembly”onpage60
•“1100Bluetoothdaughtercard”onpage62
Table23.Removalstepsofsystemboard
Chapter8.RemovingandreplacingaFRU65