![Dell U2421M Troubleshooting Steps Download Page 11](http://html.mh-extra.com/html/dell/u2421m/u2421m_troubleshooting-steps_84128011.webp)
Turn the Power/Volume knob on the Soundbar
counter-clockwise to a lower volume setting.
Clean and reseat the audio line-in plug.
Troubleshoot the computer's sound card.
Test the Soundbar using another audio source (i.e.
portable CD player).
Distorted
Sound
Other audio source is
used.
Clear any obstructions between the Soundbar and
the user.
Confirm that the audio line-in plug is completely
inserted into the jack of the audio source.
Decrease the volume of the audio source.
Turn the Power/Volume knob on the Soundbar
counter-clockwise to a lower volume setting.
Clean and reseat the audio line-in plug.
Unbalanced
Sound Output
Sound from only one
side of Soundbar.
Clear any obstructions between the Soundbar and
the user.
Confirm that the audio line-in plug is completely
inserted into the jack of the sound card or audio
source.
Set all Windows audio balance controls (L-R) to
their midpoints.
Clean and reseat the audio line-in plug.
Troubleshoot the computer's sound card.
Test the Soundbar using another audio source (i.e.
portable CD player).
Low Volume
Volume is too low.
Clear any obstructions between the Soundbar and
the user.
Turn the Power/Volume knob on the Soundbar
clockwise to the maximum volume setting.
Set all Windows volume controls to their
maximum.
Increase the volume of the audio application.