2 Troubleshooting Procedures
2.12 LAN Troubleshooting
2-52
[CONFIDENTIAL]
QOSMIO F20 Maintenance Manual (960-526)
2.12 LAN Troubleshooting
To check if the computer’s LAN is defective or malfunctioning, follow the troubleshooting
procedures below as instructed.
Procedure 1: Diagnostic Test Program Execution Check
Procedure 2: Connector Check and Replacement Check
Procedure 1
Diagnostic Test Program Execution Check
Execute the LAN Test in the LAN/Modem/Bluettoth/IEEE1394 Test Program. Refer to
Chapter 3,
Tests and Diagnostics
for more information on how to perform the test program.
If any error is detected by the test, go to Procedure 2
Procedure 2
Connector Check and Replacement Check
The LAN jack (RJ45 jack) is mounted on the system board. If the LAN malfunctions, the
LAN cable, LAN harness or system board might be faulty.
Disassemble the computer following the steps described in Chapter 4.
Check 1
Make sure the LAN cable is firmly connected to the LAN jack. If the connection is
good but there is still an error, perform Check 2.
Check 2
The LAN cable may be faulty. Replace it with a new one. If the problem still
occurs, perform Check 3.
Check 3
Make sure the LAN harness is firmly connected to the system board. If the
connection is good but there is still an error, perform Check 4.
Check 4
The LAN harness may be faulty. Replace it with a new one. If the problem still
occurs, perform Check 5.
Check 5
The system board may be faulty. Replace it with a new one following the steps in
Chapter 4,
Replacement Procedure
.
Содержание QOSMIO F20 Series
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Страница 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
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Страница 47: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures ...
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Страница 111: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
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Страница 117: ...3 Tests and Diagnostics QOSMIO F20 Maintenance Manual 960 526 CONFIDENTIAL 3 vii ...
Страница 227: ...3 31 SETUP 3 Tests and Diagnostics QOSMIO F20 Maintenance Manual 960 526 CONFIDENTIAL 3 105 ...
Страница 228: ... CONFIDENTIAL Chapter 4 Replacement Procedures ...
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Страница 316: ... CONFIDENTIAL Appendices ...
Страница 317: ...Appendices App ii CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Страница 322: ...Appendices QOSMIO F20 Maintenance Manual 960 526 CONFIDENTIAL App vii Table I 1 MTBF I 1 ...
Страница 323: ...Appendices App viii CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Страница 329: ...Appendices Appendix A Handling the LCD Module A 6 CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Страница 337: ...Appendices Appendix B Board Layout B 8 CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Страница 373: ...Appendices Appendix C Pin Assignments C 36 CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Страница 383: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Страница 385: ...Appendices Appendix F Wiring diagrams F 2 CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Страница 387: ...Appendices Appendix G BIOS Rewrite Procedures G 2 CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Страница 389: ...Appendices Appendix H EC KBC Rewrite Procedures H 2 CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...
Страница 391: ...Appendices Appendix I Reliability I 2 CONFIDENTIAL QOSMIO F20 Maintenance Manual 960 526 ...