Toshiba Qosmio F50 manual 2PowerSupplyTroubleshootingProcess

2￿Troubleshooting￿Procedures￿

2.3￿ Power￿Supply￿Troubleshooting￿

S T A R T

Chec k￿P o w er￿S up ply￿S ta tus (P roc ed ure ￿1 )

Are ￿the ￿D C -IN ￿a nd B a ttery￿L E D s￿lit?

Rep lac e ￿ad ap to r￿/￿ba tte ry (P ro ced ure ￿2)

C hec k￿poEFweG r￿sup ply	CD
c onnec tions
(P roc ed ure ￿3 )

C a n ￿you ￿turn ￿the					R un￿dia gno stic ￿pro gram
co m p uter￿o n?			EFG		(P ro ced ure ￿4)
	C	D
					P erform ￿interna l￿co nne ctio n
A re ￿the ￿interna l￿po w er
					chec k
c onnec tions￿sec ure?				CD	(P ro ced ure ￿5)
R e pla ce ￿systeEFG m ￿bo ard
E N 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￿

QOSMIO￿F50-￿QOSMIO￿F55-￿DYNABOOK￿QOSMIO￿F50￿Series￿Maintenance￿Manual￿ ￿

￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿￿9￿