
2 Troubleshooting Procedures
Procedure 3
Connection Check
The power supply wiring diagram is shown below:
Any of the connectors may be disconnected. Perform Check 1.
Check 1 Disconnect the AC power cord from the wall outlet. Check the power cable for
breaks. If the power cord is damaged, connect a new AC power cord. If there is
no damage, go to Check 2.
Check 2 Make sure the AC adaptor cord and AC power cord are firmly plugged into the
DC-IN jack socket and AC adaptor inlet/wall outlet, respectively. If these cables
are connected correctly, go to Check 3.
Check 3 Make sure the DC IN jack is firmly connected to the connector CN8800 on the
system board.
•
If the DC IN jack is not firmly connected, go to Procedure 1.
•
If it is connected, go to Check 4.
Check 4 Use a multimeter to make sure the AC adaptor output voltage is close to 15 V. If
the output is several percent lower than 15 V, go to Check 5. If the output is close
to 15 V, go to Check 6.
Check 5 Connect a new AC adaptor or AC power cord.
•
If the DC IN icon does not light, go to Procedure 5.
•
If the battery icon does not light, go to Check 6.
Check 6 Make sure the battery pack is installed in the computer correctly. If the battery is
properly installed and the battery icon still does not light, go to Procedure 4.
2-14
[CONFIDENTIAL]
PORTEGE R400 Maintenance Manual (960-623)
Summary of Contents for Portege R400 Series
Page 10: ...x CONFIDENTIAL PORTÉGÉ R400 Maintenance Manual 960 623 ...
Page 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Page 12: ...1 ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 35: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures ...
Page 36: ...2 Troubleshooting Procedures 2 ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 106: ...2 Troubleshooting Procedures 2 68 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 107: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
Page 108: ...3 Tests and Diagnostics 3 ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 3 ...
Page 112: ...3 Tests and Diagnostics 3 vi CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 214: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
Page 215: ...4 Replacement Procedures 4 ii CONFIDENTIAL PORTÉGÉ R400 Maintenance Manual 960 623 4 ...
Page 219: ...4 Replacement Procedures 4 vi CONFIDENTIAL PORTÉGÉ R400 Maintenance Manual 960 623 ...
Page 294: ... CONFIDENTIAL Appendices ...
Page 295: ...Appendices App ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 303: ...Appendices App x CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 321: ...Appendices Appendix B Board Layout B 12 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 359: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Page 369: ...Appendices Appendix I Reliability 2 CONFIDENTIAL PORTEGE R4000 Maintenance Manual 960 623 ...