Dell Precision M90 User Manual

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Contents

1. Click the Start button, click Control Panel, and then click Printers and Other Hardware.2. Click Scanners and Cameras.If your scanner is listed, Windows recognizes the scanner.Reinstall the scanner driver —See the scanner documentation for instructions.Sound and Speaker ProblemsFill out the Diagnostics Checklist (see Diagnostics Checklist) as you complete these checks.No sound from integrated speakersAdjust 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 thatthe 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.No sound from external speakersEnsure that the subwoofer and the speakers are turned on — See the setup diagram supplied with the speakers. If your speakers have volume controls,adjust the volume, bass, or treble to eliminate distortion.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 andthat the sound is not muted.Disconnect headphones from the headphone connector — Sound from the speakers is automatically disabled when headphones are connected to thecomputer'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.Reinstall the audio driver — See Reinstalling Drivers and Utilities.Run the Dell Diagnostics — See Dell Diagnostics.No sound from headphonesCheck the headphone cable connection — Ensure that the headphone cable is securely inserted into the headphone connector (see audio connectors).CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.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 notturn the player volume down or off.

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