Sony VAIO Digital Studio PCV-RX490TV User Manual page 121

Topic: My modem connection is slow.
The computer's modem uses Lucent 1648 technology/V.90. Many factors
influence modem connection speed, including telephone line noise or
compatibility with telephone equipment (such as fax machines or other modems).
If you think your modem is not connecting properly to other PC-based modems,
fax machines, or your Internet Service Provider, check the following:
Have your phone company check that your phone line is free from any line
noise.
If your problem is fax-related, check that there are no problems with the fax
machine you are calling and that it is compatible with fax modems.
For optimum performance, ensure you are calling an Internet Service
Provider number that is V.90-compliant.
If you are having a problem connecting with your Internet Service Provider,
check that the ISP is not experiencing technical problems.
If you have a second phone line available, try connecting the modem to this
line.
Topic: My modem does not work.
Your modem may stop working due to many possible factors, including
equipment or software conflicts. If your modem is not functioning properly,
check the following:
Check that the phone line is plugged into the LINE jack.
Check that the phone line is working. You can check the line by plugging in
an ordinary phone and listening for a dial tone.
Check that the phone number the program is dialing is correct.
Verify that the software you are using is appropriately configured to
recognize and interact with the Sony computer modem. Call the software
publisher if you do not know how to configure the software to recognize the
modem. All programs preinstalled by Sony are compatible.
If your modem is not functioning properly, you can perform a simple
diagnostic test to try and determine the cause.
1 Click the My Computer icon on your desktop.
2 Click Control Panel.
3 Click Modems.
Troubleshooting
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