2 Troubleshooting Procedures

2.3Power Supply Troubleshooting

ST A R T

Check Power Supply Status

(Procedure 1)

Are the DC -IN and

 

 

 

No

Battery LEDs lit?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y

es

 

 

Replace adaptor / battery

(Procedure 2)

Check power supply

connections

(Procedure 3)

Can you turn the

 

 

 

 

 

 

Run diagnostic program

 

Y es

 

 

computer on?

 

 

 

(Procedure 4)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Are the internal power

 

 

 

 

 

 

Perform internal connection

 

 

No

 

 

 

check

connections secure?

 

 

 

 

 

 

 

 

 

 

(Procedure 5)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y es

Replace system board

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

Satellite A350, SATEGO A350, EQUIUM A350 Series Maintenance Manual

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Image 45
Toshiba A350 manual Power Supply Troubleshooting Process