Specifications

PowerBook G4 (12" 1.5 GHz) Troubleshooting -

Modem Symptom Charts

Modem

No modem dial tone

1. Check that the correct modem is selected in the Network Preferences pane. In

Modem tab, check that sound is not turned off.

2. It is possible that the modem is connecting but not generating a sound. Check Internet

Connect to verify status.

3. Verify known-good analog (not digital) telephone line.

4. Verify known-good RJ11 telephone cable.

5. Verify RJ11 cable is not plugged into Ethernet port.

6. Inspect RJ11 connector and modem port for pin damage.

7. Verify RJ11 telephone cable is ﬁrmly installed in the modem port.

8. To verify system function, in Modem tab, deselect “Wait for Dial Tone Before Dialing.”

9. Verify modem 2-pin connector is plugged into modem correctly.

10. Replace the RJ11 modem cable and port.

11. Replace modem.

106592: Mac OS X: How to Use Modem AT Commands

Cannot send fax

1. Check that Network connection in System Preferences is set to Internal Modem.

2. Refer to Knowledge Base article 25746: Mac OS X 10.3: Fax doesn't send.

Cannot receive fax

Check that "Receive faxes on this computer" is selected in the Print & Fax area of System

Preferences.

25731: Mac OS X 10.3: Receiving faxes and connecting to the Internet

25596: Mac OS X 10.3: About Receiving Faxes.

Modem drops connection

1. Try known-good phone line.

2. Refer to Knowledge Base article 106748: Mac OS X: Troubleshooting a dial-up/PPP

Internet connection.