Dell C5522QT User Manual

64 | Troubleshooting
Built-in diagnostics
Your display has a built-in diagnostic tool that helps you determine if the screen
abnormality you are experiencing is an inherent problem with your display, or with your
computer and video card.
1 2 3 4 5 6 7
To run the built-in diagnostics:
1. Make sure that the screen is clean (no dust particles on the surface of the
screen).
2. Touch and hold
for 5 seconds in lock Select Option. Touch the self-inspection
icon A gray screen appears.
3. Carefully inspect the screen for abnormalities.
4. Touch the front panel. The color of the screen changes to red.
5. Inspect the display for any abnormalities.
6. Repeat steps 4 and 5 to inspect the display in green, blue, black, white, and text
screens.
The test is complete when the text screen appears. To exit, touch
panel again.
If you do not detect any screen abnormalities upon using the built-in diagnostic tool,
the display is functioning properly. Check the video card and computer.

Dell C5522QT Specifications

General

Color gamut	72 %
Pixel pitch	0.315 x 0.315 mm
Response time	9 ms
Display diagonal	55 \
Display brightness	350 cd/m²
Display technology	LCD
Native aspect ratio	16:9
Native refresh rate	60 Hz
Vertical scan range	24 - 75 Hz
Horizontal scan range	30 - 140 kHz
Contrast ratio (typical)	1300:1
Display number of colors	1.073 billion colors
Display diagonal (metric)	138.787 cm
Active display area (W x H)	1209.6 x 680.4 mm
Number of simultaneous touchpoints	20
Product color	Black
Orientation	Horizontal
Product design	Interactive flat panel
Placement supported	Indoor
Bezel width (bottom)	44.7 mm
Panel mounting interface	400 x 300 mm
DVI port	No
USB version	3.2 Gen 1 (3.1 Gen 1)
USB connector type	USB Type-C
USB ports quantity	8
HDMI ports quantity	3
VGA (D-Sub) input ports	0
RMS rated power	20 W
Speaker impedance	8 Ω
Speaker frequency range	120 - 20000 Hz
Number of built-in speakers	2
Purpose	Corporate
AC input voltage	100 - 240 V
Heat dissipation	249.43 BTU/h
AC input frequency	50 - 60 Hz
Energy efficiency scale	A to G
Power consumption (max)	300 W
Power consumption (off)	0.3 W
Power consumption (standby)	0.4 W
Power consumption (typical)	73.1 W
Package weight	41700 g
Storage temperature (T-T)	-20 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 90 %
Operating relative humidity (H-H)	10 - 80 %
Harmonized System (HS) code	85285210

Weight and Dimensions

Depth	78.7 mm
Width	1298.98 mm
Height	769.78 mm
Weight	34500 g
Display depth	- mm
Display width	1209.6 mm
Display height	680.4 mm
Display weight	- g