User's Manual
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Operating the Monitor  
Dell™S2409WFlatPanelMonitorUser'sGuide 
Using the Front Panel Controls 
Using the On-Screen Display (OSD) Menu 
Setting the Optimal Resolution 
Using the Dell Soundbar (Optional) 
Using the Tilt 
 
Using the Front Panel 
Use the control buttons on the side of the monitor to adjust the characteristics of the image being displayed. As you use these buttons to adjust the controls, 
an OSD shows the numeric values of the characteristics as they change. 
  
Front panel Button 
Description 
1
OSD Menu/Exit 
The Menu button is used to open and exit the on-screen display (OSD), and exit from menus and sub-menus. See 
Using the 
OSD Menu.
2
Brightness /Contrast Hot 
Key 
Use this button for direct access to the "Brightness" and "Contrast" control menu.
2 and 3
/  
Down and Up 
Use these buttons to navigate and adjust the slider bar (decrease/increase ranges) controls in the OSD menu.
3
Auto Adjust 
Use this button to activate automatic setup and adjustment. The following dialog appears on a black screen as the monitor 
self-adjusts to the current input: 
Auto Adjustment   button allows the monitor to self-
adjust to the incoming video signal. After using Auto Adjustment, you 
can further tune your monitor by using the Pixel Clock (Coarse), Phase (Fine) controls in the OSD. 
NOTE: 
Auto Adjust does not occur if you push the button while there are no active video input signals or attached 
cables. 
4
/  
Input Source Select/Select 
Use the Input Source Select button to select between different video signals that may be connected to your monitor. 
l VGA input  
l DVI-D input  
l HDMI input 
As you cycle through the inputs you will see the following messages to indicate the currently selected input source. It may 
take a few seconds for the image to appear. 










