
6 Troubleshooting and Maintenance Guide
Troubleshooting Computer Problems
The troubleshooting tables in this section appear in the
following order:
Audio
CD and DVD Drives
Video
Display (Monitor)
Hard Disk Drive
Hardware Installation
Internet Access
Keyboard and Mouse
Power
Performance
Miscellaneous
For more information about monitor problems, or for
problems related specifically to your printer, refer to
the documentation provided by the product
manufacturer.
Audio
Symptom Possible solution
No sound is produced. Press the Mute button on the keyboard to see whether the Mute feature is
enabled.
Or
1 Click the Windows Start Button, and then click Control Panel.
2 Click Hardware and Sound, and then click Adjust system
volume.
3 If programs are muted, click the Mute button to unmute them.
Click the Volume icon ( ) on the task bar, or use the keyboard controls to
increase the volume.
Ensure that powered (active) speakers are turned on.
Turn off your computer and reconnect the speakers. Ensure that the speakers
are connected to an audio connector, not a Line In or headphone connector.
Press the Sleep button (select models only) or the Esc key on the keyboard, to
resume from sleep mode.
Unplug headphones if they are connected to your computer.
Sound is only coming out of
two speakers.
Ensure that all speakers are connected into the correct audio connectors.
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