user manual

2 Troubleshooting Procedures
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual
46
2.19 LAN troubleshooting
Perform LAN cable
connection check
(Procedure 1)
START
D oes replacem ent
LAN cable
fu n ctio n pro p erly?
Perform LA N port check
(Procedure 2)
Replace system board
END
No
R eplace LA N
cable
Yes
LA N port functioning ok?
Yes
U se different
LAN port
No
Figure 2-18 LAN troubleshooting process
To determine if the computer’s built-in LAN is functioning properly, perform the following
procedures. Figure 2-18 outlines the process. Start with Procedure 1 and continue as
instructed.