AOC U2790VQ User Manual

26
Troubleshoot
Problem & Question
Possible Solutions
Power LED Is Not ON
Make sure the power button is ON and the Power Cord is properly connected
to a grounded power outlet and to the monitor.
No images on the screen
 Is the power cord connected properly?
Check the power cord connection and power supply.
 Is the cable connected correctly?
(Connected using the HDMI cable)
Check the HDMI cable connection.
(Connected using the DP cable)
Check the DP cable connection.
*HDMI/ DP input is not available on every model.
 If the power is on, reboot the computer to see the initial screen (the login
screen), which can be seen.
If the initial screen (the login screen) appears, boot the computer in the
applicable mode (the safe mode for Windows 7/8/8.1/10) and then
change the frequency of the video card.
(Refer to the Setting the Optimal Resolution)
If the initial screen (the login screen) does not appear, contact the
Service Center or your dealer.
 Can you see "Input Not Supported" on the screen?
You can see this message when the signal from the video card exceeds
the maximum resolution and frequency that the monitor can handle
properly.
Adjust the maximum resolution and frequency that the monitor can
handle properly.
 Make sure the AOC Monitor Drivers are installed.
Picture Is Fuzzy & Has
Ghosting Shadowing Problem
Adjust the Contrast and Brightness Controls.
Press to auto adjust.
Make sure you are not using an extension cable or switch box. We
recommend plugging the monitor directly to the video card output connector
on the back.
Picture Bounces, Flickers Or
Wave Pattern Appears In The
Picture
Move electrical devices that may cause electrical interference as far away
from the monitor as possible.
Use the maximum refresh rate your monitor is capable of at the resolution
you are using.

AOC U2790VQ Specifications

General

3D	No
Color depth	10 bit
Pixel pitch	0.3114 x 0.3114 mm
Screen shape	Flat
Backlight type	W-LED
Pixel frequency	170 MHz
Display diagonal	27 \
Display technology	LCD
Native aspect ratio	16:9
Vertical scan range	50 - 76 Hz
Maximum refresh rate	60 Hz
Horizontal scan range	30 - 83 kHz
Supported video modes	2160p
Viewable size, vertical	336.31 mm
Contrast ratio (dynamic)	20000000:1
Contrast ratio (typical)	1000:1
Display number of colors	1.073 billion colors
Viewable size, horizontal	597.89 mm
Display brightness (typical)	350 cd/m²
Supported graphics resolutions	3840 x 2160
Certification	ISO
Product color	Black
Detachable stand	Yes
Heavy metals free	Hg (mercury), Pb (lead)
Market positioning	Business
Cable lock slot	-
Tilt angle range	-3.5 - 21.5 °
Number of OSD languages	16
Panel mounting interface	100 x 100 mm
On Screen Display (OSD) languages	CHI (SIMPL), CHI (TR), CZE, DEU, DUT, ENG, ESP, FIN, FRE, ITA, JPN, KOR, POL, POR, RUS, SWE
HDMI version	1.4/2.0
DisplayPort version	1.2
Headphone connectivity	3.5 mm
Package type	Box
Package depth	185 mm
Package width	703 mm
Package height	362 mm
Package weight	6710 g
VGA cable length	1.8 m
Cables included	AC, HDMI, VGA
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (standby)	0.5 W
Power consumption (typical)	22 W
Recyclable packaging material	100 %
Mean time between failures (MTBF)	50000 h
Sustainability certificates	RoHS, EPEAT Silver, ENERGY STAR
RMS rated power	4 W

Weight and Dimensions

Depth (with stand)	199.7 mm
Width (with stand)	612.6 mm
Height (with stand)	453.2 mm
Weight (with stand)	4700 g
Depth (without stand)	45.3 mm
Height (without stand)	362.1 mm
Weight (without stand)	3000 g