2 Troubleshooting Procedures
2.11 LAN Troubleshooting
2.11 LAN Troubleshooting
This section describes how to determine if the computer’s LAN is functioning properly.
Perform the steps below starting with Procedure 1 and continue with the other procedures as
required.
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 program available as part of the LAN/Modem/Bluetooth/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 RJ-45 jack with LAN cable is connected to the system board. If the LAN malfunctions,
the system board might be damaged.
Disassemble the computer following the steps described in Chapter 4,
Replacement
Procedures
and perform the following check:
Check 1 Make sure the RJ-45 jack is firmly connected to CN4100 on the system board.
If the connector is disconnected, connect it firmly and repeat Procedure 1. If the
LAN port is still not functioning properly, perform Check 2.
Check 2 The RJ-45 jack may be defective or damaged. Replace the RJ-45 jack with a new
one. If the LAN port is still not functioning properly, perform Check 3.
Check 3 The system board may be defective or damaged. Replace the system board with a
new one following the steps in Chapter 4,
Replacement Procedures
.
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[CONFIDENTIAL]
TECRA M5 Maintenance Manual (960-542)
Summary of Contents for TECRA M5
Page 10: ...x CONFIDENTIAL TECRA M5 Maintenance Manual 960 542 ...
Page 11: ... CONFIDENTIAL Chapter 1 Hardware Overview ...
Page 12: ...1 Hardware Overview 1 ii CONFIDENTIAL TECRA M5 Maintenance Manual 960 542 ...
Page 48: ...1 Hardware Overview 1 13 AC Adapter 1 34 CONFIDENTIAL TECRA M5 Maintenance Manual 960 542 ...
Page 49: ... CONFIDENTIAL Chapter 2 Troubleshooting Procedures ...
Page 50: ...2 Troubleshooting Procedures 2 ii CONFIDENTIAL TECRA M5 Maintenance Manual 960 542 ...
Page 125: ... CONFIDENTIAL Chapter 3 Tests and Diagnostics ...
Page 126: ...3 Tests and Diagnostics 3 ii CONFIDENTIAL TECRA M5 Maintenance Manual 960 542 3 ...
Page 130: ...3 Tests and Diagnostics 3 vi CONFIDENTIAL TECRA M5 Maintenance Manual 960 542 ...
Page 231: ...Chapter 4 Replacement Procedures CONFIDENTIAL ...
Page 232: ...4 Replacement Procedures 4 ii CONFIDENTIAL TECRA M5 Maintenance Manual 960 542 ...
Page 329: ... CONFIDENTIAL Appendices ...
Page 330: ...Appendices App ii CONFIDENTIAL TECRA M5 Maintenance Manual 960 542 ...
Page 350: ...Appendices Appendix B Board Layout B 8 CONFIDENTIAL TECRA M5 Maintenance Manual 960 542 ...
Page 380: ...Appendices Appendix C Pin Assignments C 30 CONFIDENTIAL TECRA M5 Maintenance Manual 960 542 ...
Page 390: ...Appendices Appendix E Key Layout E 2 CONFIDENTIAL TECRA M5 Maintenance Manual 960 542 ...
Page 392: ...Appendices Appendix F Wiring diagrams F 2 CONFIDENTIAL TECRA M5 Maintenance Manual 960 542 ...
Page 398: ...Appendices Appendix I Reliability I 2 CONFIDENTIAL TECRA M5 Maintenance Manual 960 542 ...