Dell S2240T User Manual

Troubleshooting | 43
4
Troubleshooting
WARNING: Before you begin any of the procedures in this section, follow the
Safety Instructions .
Self-Test
Your monitor provides a self-test feature that allows you to check whether your monitor
is functioning properly. If your monitor and computer are properly connected but the
monitor screen remains dark, run the monitor self-test by performing the following
steps:
1. Turn off both your computer and the monitor.
2. Unplug the video cable from the back of the computer. To ensure proper Self-Test
operation, remove all Digital (white connector) and the Analog (blue connector)
cables from the back of computer.
3. Turn on the monitor.
The floating dialog box should appear on-screen (against a black background), if the
monitor cannot sense a video signal and is working correctly. While in self-test mode, the
power LED remains white. Also, depending upon the selected input, one of the dialogs
shown below will continuously scroll through the screen.
or

Dell S2240T Specifications

General

Color gamut	84 %
Pixel pitch	0.248 x 0.248 mm
Aspect ratio	16:9
Screen shape	Flat
LED backlight	Yes
Response time	12 ms
Display diagonal	21.5 \
Touch technology	Multi-touch
Touchscreen type	Tabletop
Display brightness	250 cd/m²
Display technology	LED
Supported video modes	1080p
Touchscreen technology	Capacitive
Viewable size diagonal	546 mm
Contrast ratio (dynamic)	8000000:1
Contrast ratio (typical)	3000:1
Display number of colors	16.78 million colors
Display diagonal (metric)	54.6 cm
Supported graphics resolutions	1920 x 1080 (HD 1080)
Number of simultaneous touchpoints	10
Product color	Black, Silver
Glass thickness	1.1 mm
Placement supported	Horizontal
Display viewable area (HxV)	476.64 x 268.11 mm
Dimensions (W x D x H) with stand	522.5 x 77.4 x 382.9 mm
Cables included	AC, HDMI, USB
Tilt angle range	0 - 60 °
Panel mounting interface	100 x 100 mm
AC input voltage	100 - 240 V
Power supply type	DC
AC input frequency	50 - 60 Hz
Power consumption (standby)	0.5 W
Power consumption (typical)	20 W
Package weight	6900 g
NVIDIA G-SYNC	No
Sustainability certificates	ENERGY STAR

Weight and Dimensions

Depth (with stand)	77.4 mm
Width (with stand)	522.5 mm
Height (with stand)	382.9 mm
Weight (without stand)	3400 g