AOC U2790PQU User Manual

27
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 U2790PQU Specifications

General

3D	No
Pixel pitch	0.1554 x 0.1554 mm
Screen shape	Flat
Backlight type	W-LED
Display diagonal	27 \
Surface hardness	3H
Separate H/V sync	Yes
Adobe RGB coverage	80 %
Display technology	LED
Native aspect ratio	16:9
Maximum refresh rate	60 Hz
Horizontal scan range	30 - 99 kHz
Supported video modes	2160p
NTSC coverage (typical)	77 %
Viewable size, vertical	335.66 mm
sRGB coverage (typical)	108 %
Contrast ratio (dynamic)	50000000:1
Contrast ratio (typical)	1000:1
Display number of colors	1.07 billion colors
Display diagonal (metric)	68.58 cm
Viewable size, horizontal	596.73 mm
Digital vertical frequency	23 - 80 Hz
Display brightness (typical)	350 cd/m²
Supported graphics resolutions	640 x 350, 640 x 480 (VGA), 720 x 400, 800 x 600 (SVGA), 832 x 624, 1024 x 768 (XGA), 1152 x 864 (XGA+), 1280 x 1024 (SXGA), 1280 x 960, 1440 x 900 (WXGA+), 1680 x 1050 (WSXGA+), 1920 x 1080 (HD 1080), 2560 x 1440, 3840 x 2160
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Energy efficiency scale	A to G
Power consumption (max)	65 W
Power consumption (off)	0.3 W
Power consumption (typical)	35 W
Power consumption (PowerSave)	0.5 W
RMS rated power	2 W
Number of speakers	2
HDMI version	1.4/2.0
USB hub version	3.2 Gen 1 (3.1 Gen 1)
DisplayPort version	1.2
Headphone connectivity	3.5 mm
USB upstream port type	USB Type-B
VGA (D-Sub) ports quantity	0
Sustainability certificates	RoHS, ENERGY STAR
Feet color	Titanium
Certification	True
Product color	Black
Heavy metals free	Hg (mercury)
Market positioning	Business
Pivot angle	0 - 90 °
Tilt angle range	-5 - 21 °
Cable lock slot type	Kensington
Panel mounting interface	100 x 100 mm
On Screen Display (OSD) languages	CHI (SIMPL), CHI (TR), CRO, CZE, DEU, DUT, ENG, ESP, FIN, FRE, ITA, JPN, KOR, POL, POR, RUS, SWE, TUR, UKR
Exterior finish type	Gloss
Recyclable packaging material	100 %
Mean time between failures (MTBF)	50000 h
Package depth	226 mm
Package width	703 mm
Package height	468 mm
Package weight	10600 g
Operating altitude	0 - 5000 m
Non-operating altitude	5000 - 12192 m
Storage temperature (T-T)	-25 - 55 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 93 %
Operating relative humidity (H-H)	10 - 85 %
Cables included	AC
HDMI cable length	1.8 m
Compatibility	VESA-P1
Harmonized System (HS) code	85285210

Weight and Dimensions

Depth (with stand)	199.5 mm
Width (with stand)	614.9 mm
Height (with stand)	535 mm
Weight (with stand)	6500 g
Depth (without stand)	43.5 mm
Height (without stand)	364.1 mm
Weight (without stand)	4650 g