Dell Latitude E7240 Ultrabook Desktop and Notebooks Users Guide - Page 55

Sound and Speaker Problems, Touchpad or Mouse Problems, No sound from integrated speakers

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Re-install the scanner driver - See the scanner documentation for instructions. Sound and Speaker Problems CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Safety and Regulatory Information documents. NOTE: If you need technical assistance for your speaker, contact the speaker's manufacturer. No sound from integrated 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. Re-install the sound (audio) driver. No sound from external speakers Tasks Ensure that the subwoofers and speakers are turned on Adjust the Windows volume control Disconnect the headphones from the headphone connector Test the electrical outlet Eliminate possible interference Re-install the audio driver Description See the Setup diagram supplied by the speaker's manufacturer. If your speakers have volume controls, adjust the volume, bass, or treble to eliminate the distortion. Click or double-click the speaker icon at the lower-right corner of your screen. Ensure that the volume is turned up and the sound is not muted. Sound from the speakers is automatically disabled when the headphone is connected to the computer's front-panel headphone connector. Ensure that the electrical outlet is working by testing it with another device, such as a lamp. Turn off nearby fans, fluorescent lights, or halogen lamps to check for interference. Ensure you have the latest audio driver for your operating system. Run the diagnostics NOTE: The volume control in some MP3 players overrides the Windows volume setting. If you have been listening to MP3 songs, ensure that you did not turn the player volume down or off. No sound from headphones Check the headphone cable connection - Ensure that the headphone cable is inserted into the headphone connector. Adjust the windows volume control - Click or 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. Touchpad or Mouse Problems Check the touchpad settings 1. Click Start > Control Panel > Printers and Other Hardware > Mouse. 2. Try adjusting the settings. Check the mouse cable - Shut down the computer. Disconnect the mouse cable, check it for damage, and firmly re-connect the cable. Troubleshooting Your Computer 55

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Re-install the scanner driver
– See the
scanner documentation
for instructions.
Sound and Speaker Problems
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the
Safety and
Regulatory Information documents
.
NOTE:
If you need technical assistance for your speaker, contact the
speaker’s manufacturer
.
No sound from integrated 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.
Re-install the sound (audio) driver.
No sound from external speakers
Tasks
Description
Ensure that the subwoofers and speakers are turned on
See the
Setup diagram
supplied by the speaker’s manufacturer. If
your speakers have volume controls, adjust the volume, bass, or
treble to eliminate the distortion.
Adjust the Windows volume control
Click or double-click the speaker icon at the lower-right corner of
your screen. Ensure that the volume is turned up and the sound is
not muted.
Disconnect the headphones from the headphone connector
Sound from the speakers is automatically disabled when the
headphone is connected to the computer’s front-panel headphone
connector.
Test the electrical outlet
Ensure that the electrical outlet is working by testing it with
another device, such as a lamp.
Eliminate possible interference
Turn off nearby fans, fluorescent lights, or halogen lamps to check
for interference.
Re-install the audio driver
Ensure you have the latest audio driver for your operating system.
Run the diagnostics
NOTE:
The volume control in some MP3 players overrides the Windows volume setting. If you have been listening to
MP3 songs, ensure that you did not turn the player volume down or off.
No sound from headphones
Check the headphone cable connection
- Ensure that the headphone cable is inserted into the headphone connector.
Adjust the windows volume control
- Click or 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.
Touchpad or Mouse Problems
Check the touchpad settings
1.
Click
Start
>
Control Panel
>
Printers and Other Hardware
>
Mouse
.
2.
Try adjusting the settings.
Check the mouse cable
- Shut down the computer. Disconnect the mouse cable, check it for damage, and firmly re-connect the cable.
Troubleshooting Your Computer
55