Toshiba PROL450D Manual Do Utilizador

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2 Troubleshooting Procedures 
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual 
 
                                                                    
 47
 
Procedure 1:  LAN connection check 
Procedure 2:  LAN port check 
Procedure 1 
LAN connection check 
The LAN cable may be damaged or the connections may be loose. Perform Check 1: 
Check 1 
Make sure LAN cable is firmly plugged into both the LAN set and the LAN port 
of the computer. If the cable is connected correctly, go to Check 2. 
Check 2 
The LAN cable may be damaged. Replace with a good cable. If the malfunction 
remains, go to Procedure 2. 
Procedure 2 
LAN port check 
The LAN set may be faulty. Perform Check 1: 
Check 1 
Try connecting a different LAN port to the computer. If the replacement LAN 
works, the original set may be damaged. If the replacement set does not work, the 
system board may be damaged. Replace it with a new one following the 
instructions in Chapter 4.