Specifications

Troubleshooting Symptom Charts/Modem - 4
Modem
No modem dial tone 1 Check that the correct modem is selected. In Mac OS X, check
Network Setup. In Mac OS 9, check the Modem control panel.
2 Verify known-good analog (not digital) telephone line.
3 Verify known-good RJ11 telephone cable.
4 Verify RJ11 cable is not plugged into Ethernet port.
5 Inspect RJ11 connector and modem port for pin damage.
6 Verify RJ11 telephone cable is firmly installed in the modem
port.
7 If using Apple Remote Access, select Ignore Dial Tone in the
Modem control panel. If the modem connects with this settings
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.
8 Verify modem 2-pin connector is plugged into modem
correctly.
9 Replace the modem 2-pin connector cable.
10 Replace modem.
Optical Drive
The optical drive does
not accept CD or DVD
disc (mechanical
failure)
1 Verify disc is not warped.
2 Verify disc is properly seated in the carrier.
3 Replace optical drive.
The disc icon does not
show up on the
desktop, or a dialog
box appears to
initialize disc
1 Verify the correct type of disc is being used.
2 Try cleaning the disc. It may not mount if dirty or scratched.
3 Try a different disc.
4 Select “Mac OS All” in the Extensions Manager control panel
and restart.
5 Replace optical drive cable. (This is the same cable that
attaches to the hard drive.)
6 Replace optical drive.
Ports
The FireWire or USB
port is not
recognizing devices
1 Completely shut down, then press the power button to start
the computer.
2 Use Software Update in Mac OS X system preferences (or the
Software Update control panel in Mac OS 9) to verify that the
latest software is installed.