2 Troubleshooting Procedures
Satellite L450D/455D, Satellite pro L450D Series Maintenance Manual
28
2.10 Modem Troubleshooting
START
Computer unable to
detect telephone signal?
END
Perform connection check
(Procedure 2)
Perform replacement
check
(Procedure 3)
Perform telephone line
connection check
(Procedure 1)
Check / replace
telephone line and
connections
Yes
Replace system board
No
Figure 2-9 Modem troubleshooting process