Toshiba TECRA S1 Manual Do Utilizador

Página de 268
2.12  LAN 
2  Troubleshooting 
TECRA S1  Maintenance Manual 
2-31 
2.10 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 test program available as part of the maintenance test program.  This 
program checks the LAN.  Insert the Bootable CD into the CD-ROM.  Turn on the computer 
and run the test.  See Chapter 3 for information on how to perform the test. 
If any error is detected by the test, 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 persist, 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.