2 Troubleshooting Procedures
2.3 Power Supply Troubleshooting
PORTEGE M300 Maintenance Manual (960-504)
2-7
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: Icon Check
Procedure 2: Error Code Check
Procedure 3: Connection Check
Procedure 4: Charge Check
Procedure 5: Replacement Check
Procedure 1
Icon Check
The following Icons indicate the power supply status:
?
Battery icon
?
DC IN icon
The power supply controller displays the power supply status through the Battery icon and
the DC IN icon as listed in Table 2-1 and Table 2-2 below. To check the power supply status,
install a battery pack and connect an AC adapter.
Table 2-1 Battery Icon
Battery icon
Power supply status
Lights orange
Battery is charged and the external DC is input. It has no
relation with ON/OFF of the system power.
Lights green
Battery is fully charged and the external DC is input. It has
no relation with ON/OFF of the system power.
Blinks orange
(even intervals)
The battery level is low while the system power is ON.
Blinks orange once
(at being switched on)
The system is driven by only a battery and the battery level
is low.
Doesn’t light
Any condition other than those above.
Summary of Contents for Portege M300
Page 10: ...x PORTEGE M300 Maintenance Manual 960 504 ...
Page 43: ...Chapter 2 Troubleshooting Procedures ...
Page 44: ...2 Troubleshooting Procedures 2 ii PORTEGE M300 Maintenance Manual 960 504 ...
Page 49: ...2 Troubleshooting Procedures PORTEGE M300 Maintenance Manual 960 504 2 vii ...
Page 106: ...PORTEGE M300 Maintenance Manual 960 504 3 i Chapter 3 Tests and Diagnostics ...
Page 107: ...3 ii PORTEGE M300 Maintenance Manual 960 504 ...
Page 112: ...PORTEGE M300 Maintenance Manual 960 504 3 vii ...
Page 226: ...3 32 SETUP 3 Tests and Diagnostics 3 110 PORTEGE M300 Maintenance Manual 960 504 ...
Page 227: ...Chapter 4 Replacement Procedures ...
Page 228: ...4 Replacement Procedures 4 ii PORTEGE M300 Maintenance Manual 960 504 ...
Page 232: ...4 Replacement Procedures 4 vi PORTEGE M300 Maintenance Manual 960 504 ...
Page 313: ...Appendices ...
Page 314: ...Appendices App ii PORTEGE M300 Maintenance Manual 960 504 ...
Page 320: ...Appendices App viii PORTEGE M300 Maintenance Manual 960 504 ...
Page 326: ...Appendix A Handling the LCD Module A 6 PORTEGE M300 Maintenance Manual 960 504 ...
Page 332: ...B 3 HDD FPC View FNCHD Appendix B Board Layout B 6 PORTEGE M300 Maintenance Manual 960 504 ...
Page 368: ...Appendix E Key Layout E 2 PORTEGE M300 Maintenance Manual 960 504 ...
Page 370: ...Appendix E Key Layout E 2 PORTEGE M300 Maintenance Manual 960 504 ...
Page 374: ...Appendix G BIOS Rewrite Procedures G 2 PORTEGE M300 Maintenance Manual 960 504 ...
Page 376: ...Appendix G BIOS Rewrite Procedures G 2 PORTEGE M300 Maintenance Manual 960 504 ...
Page 378: ...Appendix H EC KBC Rewrite Procedures H 2 PORTEGE M300 Maintenance Manual 960 504 ...
Page 380: ...Appendix I Reliability I 2 PORTEGE M300 Maintenance Manual 960 504 ...