2.12 LAN Troubleshooting
2 Troubleshooting Procedures
Satellite A50/TECRA A2 Maintenance Manual (960-478)
2-45
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 Diagnostic Program. (Sound/LAN/Modem test Program
subtest 03 LAN test) Refer to Chapter 3,
Tests and Diagnostics
for more info rmation 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 function is mounted on the system board. The modem/LAN jack is connected to
the system board by the cable. If the LAN malfunctions, the connection is bad or the
system board might be faulty.
Disassemble the computer following the steps described in Chapter 4 and perform the
following checks:
Check 1
Check if the LAN jack is connected firmly to the connector PJ4100 on the
system board.
If it is loose or disconnected, connect it firmly and return to Procedure 1. If
there is still an error, perform Check 2.
Check 2
The LAN jack may be defective. Replace the LAN jack with a new one. If the
problem persist, perform Check 3.
Check 3
The system board may be faulty. Disassemble the computer following the steps
described in Chapter 4.
Summary of Contents for Tecra A2 Series
Page 10: ...x Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Page 11: ...Chapter 1 Hardware Overview ...
Page 49: ...Chapter 2 Troubleshooting Procedures ...
Page 50: ...2 Troubleshooting Procedures 2 ii Satellite A50 TECRA A2 Maintenance Manual 960 478 2 ...
Page 54: ...2 Troubleshooting Procedures 2 vi Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Page 105: ...Chapter 3 Tests and Diagnostics ...
Page 106: ...3 Tests and Diagnostics 3 ii Satellite A50 TECRA A2 Maintenance Manual 960 478 3 ...
Page 197: ...Chapter 4 Replacement Procedures ...
Page 198: ...4 Replacement Procedures 4 ii Satellite A50 TECRA A2 Maintenance Manual 960 478 4 ...
Page 204: ...4 Replacement Procedures 4 viii Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Page 271: ...Appendices ...
Page 272: ...Appendices App ii Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Page 290: ...Appendices Apx B Board Layout B 6 Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Page 332: ...Appendices Apx E Key Layout E 2 Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Page 334: ...Appendices Apx F Wiring Diagrams F 2 Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Page 336: ...Appendices Apx G BIOS KBC EC Update G 2 Satellite A50 TECRA A2 Maintenance Manual 960 478 ...
Page 338: ...Appendices Apx H Reliability H 2 Satellite A50 TECRA A2 Maintenance Manual 960 478 ...