Laptop User Manual
Table24.RemovalstepsofLCDunit(continued)
1160Systemboard,fanassembly,and34-mmExpressCardslotframe
Importantnoticesforhandlingthesystemboard:
Whenhandlingthesystemboard,bearthefollowinginmind.
•Thesystemboardhasanaccelerometer,whichcanbebrokenbyapplyingseveralthousandsofG-forces.
Note:Droppingasystemboardfromaheightofaslittleas6inchessothatitfallsatonahardbench
cansubjecttheaccelerometertoasmuchas6,000G'sofshock.
•Becarefulnottodropthesystemboardonabenchtopthathasahardsurface,suchasmetal,wood,or
composite.
•Ifasystemboardisdropped,youmusttestit,usingPC-DoctorforDOS,tomakesurethattheHDD
ActiveProtectionstillfunctions(seebelow).
Note:IfthetestshowsthatHDDActiveProtectionisnotfunctioning,besuretodocumentthedropin
anyrejectreport,andreplacethesystemboard.
•Avoidroughhandlingofanykind.
•Ateverypointintheprocess,besurenottodroporstackthesystemboard.
•Ifyouputasystemboarddown,besuretoputitonlyonapaddedsurfacesuchasanESDmator
conductivecorrugatedmaterial.
Afterreplacingthesystemboard,runPC-DoctorforDOStomakesurethatHDDActiveProtectionstill
functions.Theprocedureisasfollows:
1.Placethecomputeronahorizontalsurface.
Chapter8.RemovingandreplacingaFRU103