Dell C7520QT User Manual

64 | Troubleshooting
Specific
Symptoms
What You
Experience
Possible Solutions
Wireless USB
peripherals stop
working when a
USB 3.0 device is
plugged in
Wireless USB
peripherals
responding slowly
or only working
as the distance
between itself
and its receiver
decreases
•Increase the distance between the USB 3.0
peripherals and the wireless USB receiver.
•Position your wireless USB receiver as close as
possible to the wireless USB peripherals.
•Use a USB-extender cable to position the wireless
USB receiver as far away as possible from the USB
3.0 port.
USB is not
working
No USB
functionalities
Refer to input source and USB pairing table.
Ethernet Problems
Specific
Symptoms
What You
Experience
Possible Solutions
Ethernet not
working
Dell Web
Management for
Displays Webpage
control is not
working
•Ensure that the Network cable connecting the Display
is properly secured.
•Touch the icon 5 on the screen for 4 seconds to turn
on , A network icon appears and is shown on the
center for 4 seconds .
•Touch the icon 5 on the front panel for 4 seconds to
turn o, A network icon appears and is shown on
the center for 4 seconds.
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Dell C7520QT Specifications

General

Color gamut	72 %
Pixel pitch	0.429 x 0.429 mm
Aspect ratio	16:9
Screen shape	Flat
Response time	8 ms
Backlight type	LED
Display diagonal	74.5 \
Surface hardness	9H
Touch technology	Multi-touch
Touchscreen type	Multi-user
Anti-glare surface	Yes
Display brightness	350 cd/m²
Display technology	LCD
Native refresh rate	60 Hz
Supported video modes	2160p
Viewable size diagonal	1892.7 mm
Contrast ratio (typical)	1200:1
Display number of colors	1.073 billion colors
Number of simultaneous touchpoints	20
Certification	UL
Product color	Black
Panel mounting interface	400 x 400 mm
Placement supported	Horizontal
Ethernet LAN (RJ-45) ports	1
Display viewable area (HxV)	1649.7 x 927.9 mm
Cables included	DisplayPort, HDMI, USB, VGA
DVI port	-
USB version	2.0/3.2 Gen 1 (3.1 Gen 1)
USB hub version	3.2 Gen 1 (3.1 Gen 1)
USB connector type	USB Type-A, USB Type-B
USB ports quantity	7
HDMI ports quantity	3
USB upstream port type	USB Type-B
Height adjustment	No
AC input voltage	100 - 240 V
Power supply type	AC
AC input frequency	50 - 60 Hz
Energy efficiency scale	A to G
Power consumption (max)	270 W
Power consumption (standby)	0.3 W
Power consumption (typical)	140 W
Operating altitude	0 - 5000 m
Non-operating altitude	0 - 12191 m
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)	20 - 80 %
RMS rated power	40 W
Number of speakers	2
Sustainability certificates	RoHS, ENERGY STAR
Harmonized System (HS) code	85285210
Package weight	Weight of the packaged product in gram.

Weight and Dimensions

Depth	78.74 mm
Width	1734.82 mm
Height	1018.54 mm
Weight	64000 g
Display width	1735.02 mm
Display height	1017.44 mm
Depth (without stand)	79.1 mm
Width (without stand)	1735 mm
Height (without stand)	1017.4 mm
Weight (without stand)	76000 g