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2 Troubleshooting Procedures
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual
9
2.3 Power Supply Troubleshooting
START
Are the DC-IN and
Battery LEDs lit?
Can you turn the
computer on?
Are the internal power
connections secure?
END
Check Power Supply Status
(Procedure 1)
Check power supply
connections
(Procedure 3)
Run diagnostic program
(Procedure 4)
Replace adaptor / battery
(Procedure 2)
Perform internal connection
check
(Procedure 5)
Replace system board
Figure 2-2 Power Supply Troubleshooting Process