HP pavilion ze5100 サービスマニュアル

Troubleshooting and Maintenance
Troubleshooting Your Computer

106

Reference Guide

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If you have call-waiting, disable it—your telephone company can provide
instructions.

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Make sure you’re using an analog telephone line (2, 3, or 4 wires). You must not use
a digital line. In a hotel, ask for a data line.

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Try another telephone line, preferably one normally used for a fax machine or
modem.

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The modem at the other end may have a problem. Try dialing to a different modem.

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Try disabling error correction and data compression.

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Check the modem setup. In Control Panel, open Phone and Modem Options. Check
the COM port.

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Open the hardware Device Manager: click Start, Control Panel, Performance and
Maintenance, System (Windows XP) or Start, Settings, Control Panel, System
(Windows 2000). If the modem is disabled, try to enable it. If it has a conflict, try
disabling another device.

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If you’re running fax software using fax Class 2, try using Class 1.

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Make sure the audio mute light is turned off. If it’s on, press the audio mute button.

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Check the speaker volume setting.

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 In Control Panel, open Phone and Modem Options. Select the modem and click
Properties, and then check the volume setting on the General tab.

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 In Control Panel, open Phone and Modem Options. Make sure the parity, speed,
word length, and stop bits match on sending and receiving modems.

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Try disabling error correction and data compression.

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A string of AT commands may contain an incorrect command. If you entered
commands as extra settings for the modem in Control Panel or in your
communications software, check the commands.