Dell Inspiron 2650 Manuel d'utilisateur télécharger pdf (Page 49)

If the display is difficult to read

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If only part of the display is readable

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Sound and Speaker Problems

If you have a problem with integrated speakers

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If you have a problem with external speakers

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ChecktheACadapter— Check the AC adapter cable connections. If the AC adapter has a light, ensure that it is on.

Connectthecomputerdirectlytoanelectricaloutlet— Bypass power protection devices, power strips, and the extension cable to verify

that the computer turns on.

AdjustthePowerProperties— See the Tell Me How help file or search for the keyword standby in the Help and Support Center (Help in

Windows 2000). See "Accessing Help."

Switchthevideoimage— If your computer is attached to an external monitor, press to switch the video image to the display.

Adjustthebrightness— See the Tell Me How help file for instructions on adjusting the brightness (see "Accessing Help").

Movethesubwooferawayfromthecomputerormonitor— If your external speaker system includes a subwoofer, ensure that the

subwooferisatleast60cm(2ft)awayfromthecomputerorexternalmonitor.

Eliminatepossibleinterference— Turn off nearby fans, fluorescent lights, halogen lamps, or other appliances.

Rotatethecomputertofaceadifferentdirection— Eliminate sunlight glare, which can cause poor picture quality.

Adjust the Windows display settings

Windows XP

1. Click the Start button and then click Control Panel.

2. Click Appearance and Themes.

3. Click the area you want to change or click the Display icon.

4. Try different settings for Color quality and Screen resolution.

Windows 2000

1. Click the Start button, point to Settings, and then click Control Panel.

2. Double-click the Display icon and then click the Settings tab.

3. Try different settings for Colors, Screen area, and Advanced Settings.

See"ErrorMessages"— If an error message appears, see "Error Messages."

Connect an external monitor

1. Turn off your computer and connect an external monitor to the computer.

2. Turn on the computer and the monitor and adjust the monitor brightness and contrast controls.

If the external monitor works, the computer display or video controller may be defective. Contact Dell for technical assistance (see

"Contacting Dell" in the Dell Owner's Manual that came with your computer).

Adjust the Windows®volumecontrol— Double-click the speaker icon in the lower-right corner of your screen. Ensure that the volume is

turned up and that the sound is not muted. Adjust the volume, bass, or treble controls to eliminate distortion.

Adjustthevolumeusingkeyboardshortcuts— Press to disable (mute) or reenable the integrated speakers.

Reinstallthesound(audio)driver— See "Reinstalling Drivers and Utilities."

HINT: The volume control in some MP3 players overrides the Windows volume setting. If you have been listening to MP3 songs, make sure that you did

not turn the player volume down or off.

Checkthespeakercableconnections— See the setup diagram supplied with the speakers.

Testtheelectricaloutlet— Ensure that the electrical outlet is working by testing it with another device, such as a lamp.

Ensurethatthespeakersareturnedon— See the setup diagram supplied with the speakers.

AdjusttheWindowsvolumecontrol— Double-click the speaker icon in the lower-right corner of your screen. Ensure that the volume is

turned up and that the sound is not muted. Adjust the volume, bass, or treble controls to eliminate distortion.

Testthespeakers— Plug the speaker audio cable into the line-out connector on the computer. Ensure that the headphone volume control is

turned up. Play a music CD.

Run the speaker self-test— Some speaker systems have a self-test button on the subwoofer. See the speaker documentation for self-test

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Dell Inspiron 2650 Manuel d'utilisateur Page 49

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