
2.3 Power Supply Troubleshooting
2 Troubleshooting Procedures
2.3 Power
Supply
Troubleshooting
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 as instructed.
The procedures described in this section are:
Procedure 1: Power Status Check
Procedure 2: Error Code Check
Procedure 3: Connection Check
Procedure 4: Quick Charge Check
Procedure 5: Replacement Check
Procedure 1
Power Status Check
The following LEDs indicate the power supply status:
Battery LED
DC IN LED
The power supply controller displays the power supply status through the Battery and the DC IN
LEDs as listed in the tables below.
Table 2-1 Battery LED
Battery LED
Power supply status
Lights orange
Quick charge
Lights green
Battery is fully charged and AC adaptor is connected.
Blinks orange
(even intervals)
The battery level becomes low while operating the computer on battery
power.*1
Flashes orange
The power switch is pressed on when the battery level is low.*2
Doesn’t light
Any condition other than those above
*1 Low Battery Hibernation will be executed soon.
*2 Low Battery Hibernation has already been executed.
Satellite A20 Maintenance Manual (960-444)
2-7
Summary of Contents for Satellite A20 Series
Page 6: ...vi Satellite A20 Maintenance Manual 960 444 ...
Page 11: ...Chapter 1 Hardware Overview ...
Page 12: ...1 Hardware Overview 1 ii Satellite A20 Maintenance Manual 960 444 ...
Page 36: ......
Page 45: ...Chapter 2 Troubleshooting Procedures ...
Page 46: ...2 Troubleshooting Procedures 2 ii Satellite A20 Maintenance Manual 960 444 ...
Page 50: ...2 Troubleshooting Procedures 2 vi Satellite A20 Maintenance Manual 960 444 ...
Page 109: ...Chapter 3 Tests and Diagnostics ...
Page 110: ...3 Tests and Diagnostics 3 ii Satellite A20 Maintenance Manual 960 444 ...
Page 195: ...3 Tests and Diagnostics 3 26 SETUP 3 84 Satellite A20 Maintenance Manual 960 444 ...
Page 196: ...Chapter 4 Replacement Procedures ...
Page 197: ...4 Replacement Procedures 4 ii Satellite A20 Maintenance Manual 960 444 ...
Page 205: ...4 Replacement Procedures 4 x Satellite A20 Maintenance Manual 960 444 ...
Page 426: ...Appendices ...
Page 427: ...Appendices App ii Satellite A20 Maintenance Manual 960 444 ...
Page 439: ...Appendices Appendix A Handling the LCD module A 6 Satellite A20 Maintenance Manual 960 444 ...
Page 473: ...Appendices Apx C Pin Assignments C 26 Satellite A20 Maintenance Manual 960 444 ...
Page 487: ...Appendices Appendix E Key Layout E 6 Satellite A20 Maintenance Manual 960 444 ...
Page 489: ...Appendices Appendix F Wiring Diagrams F 2 Satellite A20 Maintenance Manual 960 444 ...
Page 491: ...Appendices Appendix G BIOS Rewrite Procedures G 2 Satellite A20 Maintenance Manual 960 444 ...
Page 493: ...Appendices Appendix H EC KBC Rewrite Procedures H 2 Satellite A20 Maintenance Manual 960 444 ...
Page 495: ...Appendices Appendix I Reliability I 2 Satellite A20 Maintenance Manual 960 444 ...