2 Troubleshooting Procedures
Procedure 3
Connector Check and Replacement Check
The USB FDD is connected to the USB/JACK/3G/SIM board (MJ board), and the
USB/JACK/3G/SIM board to the System Board.
Check 1 When using the USB port, make sure the USB FDD cable is firmly connected to
CN4611 or CN4610 on the USB/JACK/3G/SIM board. Make sure the USB cable
is securely connected to CN9501 on the system board and CN9601 on the
USB/JACK/3G/SIM board.
If any of the connections are loose, reconnect firmly and repeat Procedure 2.
If any of the connections is damaged, or there is still an error, go to Check 2.
Check 2 The USB FDD or USB FDD cable may be defective or damaged. Replace it with
a new one. If the USB FDD is still not functioning properly, perform Check 3.
Check 3 Replace the USB/JACK/3G/SIM board with a new one following the steps in
Chapter 4,
Replacement Procedures
.
If the problem still exists, perform Check 4.
Check 4 Replace the System board with a new one following the steps in Chapter 4,
Replacement Procedures
.
PORTEGE R400 Maintenance Manual (960-623) [CONFIDENTIAL]
2-35
Содержание Portege R400 Series
Страница 10: ...x CONFIDENTIAL PORTÉGÉ R400 Maintenance Manual 960 623 ...
Страница 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Страница 12: ...1 ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Страница 35: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures ...
Страница 36: ...2 Troubleshooting Procedures 2 ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Страница 106: ...2 Troubleshooting Procedures 2 68 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Страница 107: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
Страница 108: ...3 Tests and Diagnostics 3 ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 3 ...
Страница 112: ...3 Tests and Diagnostics 3 vi CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Страница 214: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
Страница 215: ...4 Replacement Procedures 4 ii CONFIDENTIAL PORTÉGÉ R400 Maintenance Manual 960 623 4 ...
Страница 219: ...4 Replacement Procedures 4 vi CONFIDENTIAL PORTÉGÉ R400 Maintenance Manual 960 623 ...
Страница 289: ...4 Replacement Procedures 4 26 Digitizer NO 4 70 CONFIDENTIAL PORTÉGÉ R400 Maintenance Manual 960 623 ...
Страница 294: ... CONFIDENTIAL Appendices ...
Страница 295: ...Appendices App ii CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Страница 303: ...Appendices App x CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Страница 309: ...Appendices Appendix A Handling the LCD Module A 6 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Страница 321: ...Appendices Appendix B Board Layout B 12 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Страница 359: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Страница 363: ...Appendices Appendix F Wiring diagrams F 4 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Страница 365: ...Appendices Appendix G BIOS rewrite procedures G 2 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Страница 367: ...Appendices Appendix H EC KBC rewrite procedures H 2 CONFIDENTIAL PORTEGE R400 Maintenance Manual 960 623 ...
Страница 369: ...Appendices Appendix I Reliability 2 CONFIDENTIAL PORTEGE R4000 Maintenance Manual 960 623 ...