SoundExpression SE14SRS, Руководство пользователя

Страница: 31 / 72

31
Modem Problems
This section lists common problems that
may be encountered with modem usage
and their possible solutions.
SYMPTOM
No dial tone.
POSSIBLE REMEDY
• Verify that you have cables plugged in
correctly as instructed in 2.6 and.
• Connect a telephone set directly to the
wall jack and check for a dial tone. If
no dial tone is heard, the telephone line
is not working. Contact the telephone
company.
SYMPTOM
Modem will not connect to another
modem.
POSSIBLE REMEDY
• Check the connections between the
modem and the computer, and the
modem and the telephone line.
• Make sure the telephone jack is
operational as described above.
• The telephone line may be in use at a
different extension.
• Make sure your communications
application is set up for the
SoundExpression, or a generic 14.4Kbps
modem with AT&F as its init string.
SYMPTOM
No response when you type in AT
commands
POSSIBLE REMEDY
• There may be a conflicting port
address. Re-configure the modem’s
COM port address
• Verify that the communication software
is set to the same communications port
that your modem is set to (e.g., COM1,
COM2). Check IRQ settings in your
software and on the modem.
• Try typing AT&F to reset the modem to
its factory defaults.
• Check the modem settings by running
SNDINIT (pages 19-22). Make sure the
modem interface is set to ON.
SYMPTOM
AT commands not visible.
POSSIBLE REMEDY
• Make sure the echo command is set to
ON. Change to echo with the ATE
command.
Troubleshooting