Modem Troubleshooting - Toshiba Satellite M640 Maintenance Manual

2Troubleshooting Procedures

2.10 Modem Troubleshooting

Perform telephone line
connection check
Computer unable to
detect telephone signal?
Perform connection check
Perform replacement
Replace system board
Satellite/Satellite Pro M600/M640/M645/M647 Series/Dynabook TX/AX Series Maintenance Manual
START
(Procedure 1)
No
(Procedure 2)
check
(Procedure 3)
END
Figure 2.10-1 Modem troubleshooting process
Check / replace
telephone line and
Yes
connections
28