Acer TravelMate 505 Service Manual page 73

Modem-Related Symptoms
Symptom / Error
Internal modem does not work correctly.
NOTE: If you cannot find a symptom or an error in this list and the problem remains, see "Undetermined
Problems" on page 69.
Chapter 4
Action in Sequence
System Diagnostics Diskette
Modem phone jack
Modem board
System board
67