Toshiba PSAGUX Manual Do Utilizador

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2  Troubleshooting 
2.9  LAN 
2-20 
Satellite A300/Satellite Pro A300/EQUIUM A300/SATEGO A300   Maintenance Manual 
2.9  LAN 
To check if the computer’s LAN is defective or malfunctioning, follow the troubleshooting 
procedures below as instructed. 
Procedure 1  Test Program Check 
Procedure 2  Connector Check and Replacement Check 
 
Procedure 1 Test Program Check 
Execute the LAN check program available as part of the maintenance test program.  This 
program will check the LAN.  Insert the Bootable CD into the CD.  Turn on the computer 
and run the check program.  See Chapter 3 for information on how to perform the check. 
If any abnormal  is detected by the check, go to Procedure 2 
 
Procedure 2 Connector Check and Replacement Check 
The LAN connector (RJ45) is mounted on the system board.  If the LAN malfunctions, the 
system board or CPU might be faulty. 
Disassemble the computer following the steps described in Chapter 4 and perform the 
following checks: 
Check 1 
The system board may be faulty.  Replace it with a new one following the 
instructions in Chapter 4.  If the LAN is still not functioning properly, 
perform Check 2. 
Check 2 
The memory may be defective. Replace the memory module with a new 
one following the steps described in Chapter 4. If the problem persists, 
perform
 Check 3. 
Check 3 
The CPU may be faulty. Disassemble the computer following the steps 
described in Chapter 4 and replace the CPU with a new one.