2TroubleshootingProcedures

SatelliteL550/ProL550SeriesMaintenanceManual
9
2.3 PowerSupplyTroubleshooting
STAR T
Areth e D C -I N a n d
Batte ry L E D s li t?
Cany outur nthe
comp utero n?
Areth einte rnalp ower
conne ction ssecu re?

END

Check Pow erSup plyS tatus
(Proc edure 1)
Check powe rsup ply
conne ction s
(Proc edure 3)
Rund iagno sticp rogra m
(Proc edure 4)
Repla cead aptor /bat tery
(Proc edure 2)
Perfo rm  in te rn a l co n n ec ti o n
check
(Proc edure 5)
Repla c e sy st e m b oa r d

Figure2-2PowerSupplyTroubleshootingProcess

Thepowersupplycontrolsmanyfunctionsandcomponents.Todetermineifthepower

supplyisfunctioningproperly,startwithProcedure1andcontinuewiththeotherProcedures