Toshiba PROL550 Laptop User Manual


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SatelliteL550/ProL550SeriesMaintenanceManual
Themanualisdividedintothefollowingparts:
Chapter1 HardwareOverviewdescribestheSatelliteSeriessystemunitandeach
FRU.
Chapter2 TroubleshootingProceduresexplainshowtodiagnoseandresolveFRU
problems.
Chapter3 TestandDiagnosticsdescribeshowtoperformtestanddiagnostic
operationsformaintenanceservice.
Chapter4 ReplacementProceduresdescribestheremovalandreplacementofthe
FRUs.
Appendices Theappendicesdescribethefollowing:
HandlingtheLCDmodule
Boardlayout
Pinassignments
Keyboardscan/charactercodes
Keylayout
Screwtorquelist
Reliability
Conventions
Thismanualusesthefollowingformatstodescribe,identify,andhighlighttermsandoperating
procedures.
Acronyms
Onthefirstappearanceandwhenevernecessaryforclarification,acronymsareenclosedin
parenthesesfollowingtheirdefinition.Forexample:
ReadOnlyMemory(ROM)
Keys
Keysareusedinthetexttodescribemanyoperations.Thekeytopsymbolasitappearsonthe
keyboardisprintedinboldfacetype.
Keyoperation
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