Toshiba PROA500 사용자 설명서

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2 Troubleshooting Procedures 
 
 
Satellite L500 / Pro L500 Series Maintenance Manual                        
44
 
2.18  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 2-17 Modem troubleshooting process