2.3 Power Supply Troubleshooting

2 Troubleshooting Procedures

2.3Power Supply Troubleshooting

ST ART

Check Power Supply Status

(Procedure 1)

Are the DC -IN and

 

 

 

N o

Battery LEDs lit?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

Replace adaptor / battery

(Procedure 2)

Check power supply

connections

(Procedure 3)

Can you turn the

 

 

 

Y es

computer on?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N o

 

 

 

 

 

 

 

 

 

Run diagnostic program

(Procedure 4)

Are the internal power

 

 

 

N o

connections secure?

 

 

 

 

 

Perform internal connection

check

(Procedure 5)

Yes

Replace system board

E ND

Figure 2-2 Power Supply Troubleshooting Process

Satellite P20-25 Series Maintenance Manual

2-7

Page 44
Image 44
Toshiba P25 manual Power Supply Troubleshooting Troubleshooting Procedures