Toshiba PROL450D Manual Do Utilizador

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2 Troubleshooting Procedures 
 
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual 
 
 
                                                                       
9
 
2.3  Power Supply Troubleshooting 
ST ART
Are the D C -IN  and
B attery LED s lit?
Can you turn the
computer on?
A re the internal power
connections secure?
EN D
Check Power Supply Status
(Procedure 1)
No
Yes
Check power supply
connections
(P rocedure 3)
R un diagnostic program
(Procedure 4)
Yes
No
R eplace adaptor / battery
(Procedure 2)
No
P erform  internal connection
check
(Procedure 5)
Replace system  board
Yes
 
Figure 2-2 Power Supply Troubleshooting Process