Dell S2421NX User Manual

34 | Operating the monitor
1. Press and hold Button 4 for four seconds, a menu appears on the screen.
Dell 24/27 Monitor
Select Option:
2. Select one of the following options:
Options Description
1
Menu Button lock
Select this option to lock OSD menu function.
2
Power Button lock
Use this option to lock power button. This will
prevent the user to turn off the monitor using the
power button.
3
Menu and Power Button
lock
Use this option to lock OSD menu and power
button to turn off the monitor.
4
Built-in Diagnostics
Use this option to run the built-in diagnostics, see
Built-in Diagnostics.
To unlock the button(s).
Press and hold Button 4 for foru seconds until a menu appears on the screen. The
following table describes the options to unlock the front-panel control buttons.
Dell 24/27 Monitor
Select Option:
Dell 24/27 Monitor
Select Option:
Dell 24/27 Monitor
Select Option:

Dell S2421NX Specifications

General

Screen Size	23.8 inches
Resolution	1920 x 1080 (Full HD)
Panel Type	IPS
Refresh Rate	75 Hz
Aspect Ratio	16:9
Brightness	250 cd/m²
Contrast Ratio	1000:1
Connectivity	1 x HDMI 1.4, 1 x VGA
Color Support	16.7 million colors
Response Time	4 ms (gray to gray)
Viewing Angle	178°
Features	Anti-glare
VESA Mount	100 x 100 mm