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4-6
Dell Dimension L Series Systems Reference and Troubleshooting Guide
•
Change the display type to standard video graphics array (VGA) as follows:
Restart the system. For Windows 98, Windows Me, or Windows 2000, press
<F8> when you see the Starting Windows ... message, and then select
Safe fe Mode from the boot manager screen. For Windows NT, select
Windows NT Workstation 4.0 [VGA Mode] ] from the boot manager screen.
•
Reinstall the video drivers (refer to "Video Drivers" in Chapter 5).
Speakers
Perform the following checks for speaker problems:
•
Ensure that the speakers are properly connected as shown on the Getting
Started sheet or as described in the documentation that came with the speakers.
•
Reseat all speaker connections and make sure they are inserted fully. Verify that
the audio jacks are not bent or broken.
•
Verify that the speakers and/or subwoofer are turned on and are connected to a
known good power source.
•
Turn up the volume knob on the speakers
volume knob on the speakers. If the audio is distorted, make sure
that the volume is not turned to its maximum setting. Adjust the treble and/or
bass if the sound distorts.
•
Turn up the volume by clicking the yellow speaker icon in the Windows taskbar
and adjusting the volume setting.
•
Turn off the monitor and such devices as fans, fluorescent lights, or halogen
lamps to check for interference from those devices.
•
Refer to "Sound Cards" in Chapter 6 for further troubleshooting information.
Sound Cards" in Chapter 6 for further troubleshooting information.
Modem
NOTICE: Connect the modem to an analog line only. Using a nonanalog
line, such as a digital or private branch exchange (PBX) line, will damage
the modem.
NOTE: If your modem can dial and connect to one Internet service provider (ISP) or to
a fax machine, your modem is functioning properly. For assistance, contact the ISP to
which you cannot connect.
If you are experiencing problems with a modem, perform the following checks.
•
If you have any other telephone devices plugged into this line, such as answering
machines, dedicated fax machines, surge protectors or line splitters, then bypass
them and plug the modem cable directly into the telephone connector on the
wall.
•
Disconnect the cable from the modem and plug it directly into a telephone.
Listen for a dial tone.
•
Check that the modem cable is connected to the line jack (the jack with a
connector-shaped icon) on the modem. Reseat the cable connections.
For Windows 98, Windows Me, or Windows 2000, press
boot manager screen. For Windows NT, select
) on the modem. Reseat the cable connections.
pter 5).
vice provider (ISP) or to
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