Technical information

Symptom Charts / Modem -
16
Troubleshooting
PowerBook (FireWire)
Modem
No dial tone 1. Verify known-good analog (not digital) telephone line.
2. Verify cable is not plugged into Ethernet port.
3. If using Apple Remote Access 3.0, select Ignore Dial Tone in
the Modem control panel. If the modem connects with this
setting selected, try another phone line. If using a terminal or
communications program, enter “atx1” to disable tone
detection. To reset the modem back to the factory settings,
enter “atz.”
4. Replace cable/phone jack.
5. Replace modem EMI filter card.
6. Replace modem.
No internal modem
selection available
1. Remove keyboard and verify modem is properly installed and
modem EMI filter card is plugged in.
2. Verify correct modem software is installed and selected.
3. Replace modem.
Modem reports an
error when dialing
out
1. Use the Modem Country Selector utility to make sure the
modem is set to the correct country.
2. Make sure the correct driver is installed and the correct CCL
is selected and that they are not corrupted. If necessary,
reinstall the driver and/or CCL.
3. Try another cable and phone jack.
4. If problem persists, reinstall system and modem software.
Modem is having
trouble connecting to
Online site
1. Use the Modem Country Selector utility to make sure the
modem is set to the correct country.
2. The phone line may have too much noise. If the user has a
second line, try that one. The user should contact their local
phone company and request their line be checked.
3. Check to make sure the TCP/IP control panel is correctly
configured for the user's Internet Service Provider. If the