Service manual

Solving Problems: Dell Inspiron 4150
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 instructions.
Eliminate possible interference — Turn off nearby fans, fluorescent lights, or halogen
lamps to check for interference.
Reinstall the sound (audio) driver — See "Reinstalling Drivers and Utilities."
Printer Problems
Check the printer cable connections — Ensure that the printer cable is properly
connected to the computer.
Test the electrical outlet — Ensure that the electrical outlet is working by testing it with
another device, such as a lamp.
Ensure that the printer is turned on — See the documentation supplied with the
printer.
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