Infrared Communication
PowerBook (FireWire)
18
Troubleshooting
Infrared Communication
Infrared communication is not working
1. Clean infrared window with soft lint-free cloth.
2. Make sure units are spaced 3—6 feet apart and at less
than a 20 degree angle.
3. Verify infrared signal is being received by host
computer.
4. Replace I/O logic board.
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.
To Next Page
Loading...
