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Chapter 2 Troubleshooting Procedures
2.9 LAN Troubleshooting
Procedure 1: Diagnostic Test Program Execution Check
Procedur
Execute LA for
more information on how to perform the test program.
If any error
The LAN f
defective o aulty.
To check if the computer’s LAN is malfunctioning or not, follow the troubleshooting
procedures below as instructed.
Procedure 2: Connector Check and Replacement Check
e 1 Diagnostic Test Program Execution Check
N test in the LAN test program. Refer to Chapter 3, Tests and Diagnostics
is detected by the test, go to Procedure 2.
Procedure 2 Connector Check and Replacement Check
unction is embedded on system board. If LAN malfunctions, its connection is
r LAN cable and system board may be f
Check 1 Make sure LAN cable is firmly connected to the connector CN12. If the problem
still occurs, perform Check 2.
No Separated LAN BOARD ，it’s assembled.
Check 2 LAN cable may be faulty. Replace it with a new one. If the problem still occurs,
perform Check 3.
Check 3 System board may be faulty. Replace it with a new one following the instruction in
Chapter 4.
Satellite L600/L640/L645, Satellite Pro L600/Pro L640/Pro L645 Maintenance Manual (960-Q08)