Sound And Speaker Problems; Video And Monitor Problems - Dell Precision R5400 Service Manual

1. Click Start ® Control Panel® Hardware and Sound® Scanners and Cameras.
2. If the scanner is listed, Windows recognizes the scanner.
Windows XP:
1. Click Start® Control Panel® Printers and Other Hardware® Scanners and Cameras.
2. If your scanner is listed, Windows recognizes the scanner.
Reinstall the scanner driver — See the scanner documentation for instructions.

Sound and Speaker Problems

CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage on www.dell.com at www.dell.com/regulatory_compliance.
No sound from speakers
Ensure that the subwoofer and the speakers are turned on —
adjust the volume, bass, or treble to eliminate distortion.
Adjust the Windows volume control —
that the sound is not muted.
Disconnect headphones from the headphone connector —
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 —
Run the speaker diagnostics
Reinstall the sound driver — See your computer's Setup and Quick Reference Guide for instructions on reinstalling software.
Run the Hardware Troubleshooter —
No sound from headphones
Check the headphone cable connection —
and Quick Reference Guide for illustrations identifying each connector).
Adjust the Windows volume control —
that the sound is not muted.

Video and Monitor Problems

CAUTION: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best
practices information, see the Regulatory Compliance Homepage on www.dell.com at www.dell.com/regulatory_compliance.
NOTICE: If your computer came with a PCI graphics card installed, removal of the card is not necessary when installing additional graphics cards;
however, the card is required for troubleshooting purposes. If you remove the card, store it in a safe and secure location. For information about your
graphics card, go to support.dell.com.
The screen is blank
See the setup diagram supplied with the speakers. If your speakers have volume controls,
Click or double-click the speaker icon in the lower-right corner of your screen. Ensure that the volume is turned up and
Sound from the speakers is automatically disabled when headphones are connected to the
Turn off nearby fans, fluorescent lights, or halogen lamps to check for interference.
See Hardware Troubleshooter.
Ensure that the headphone cable is securely inserted into the headphone connector (see your computer's Setup
Click or double-click the speaker icon in the lower-right corner of your screen. Ensure that the volume is turned up and