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setting is always. “off”. 3. Press and hold “ ” button for 5 seconds to activate the Clear Vision Demo, and a message of “Clear Vision. Demo ...

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AOC U2790VQ 27" 4K 3840x2160 UHD Frameless Monitor, IPS, 5ms, 1 Billion Colors, DisplayPort/HDMI Inputs, Vesa, Black : Electronics

User Manual for AOC models including: LCD Monitor, U2790VQ

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Document DEVICE REPORTA1LWj88WKTS
LCD Monitor User Manual
U2790VQ
LED backlight

1

www.aoc.com

©2018 AOC. All Rights Reserved.

Safety ........................................................................................................................................................................ 3 National Conventions.........................................................................................................................................3 Power ................................................................................................................................................................4 Installation .......................................................................................................................................................... 5 Cleaning............................................................................................................................................................. 6 Other .................................................................................................................................................................. 7
Setup ........................................................................................................................................................................8 Contents in Box .................................................................................................................................................8 Setup Base ........................................................................................................................................................9 Adjusting Viewing Angle...................................................................................................................................10 Connecting the Monitor.................................................................................................................................... 11
Wall Mounting ......................................................................................................................................................... 12 Adjusting ................................................................................................................................................................. 13
Hotkeys ............................................................................................................................................................ 13 OSD Setting.....................................................................................................................................................15
Luminance ................................................................................................................................................ 16 Image Setup ............................................................................................................................................. 17 Color Setup...............................................................................................................................................18 Picture Boost ............................................................................................................................................ 19 OSD Setup ............................................................................................................................................... 20 Extra .........................................................................................................................................................21 Exit............................................................................................................................................................ 22 LED Indicator ................................................................................................................................................... 22 Driver ...................................................................................................................................................................... 23 i-Menu .............................................................................................................................................................. 23 e-Saver ............................................................................................................................................................ 24 Screen+ ........................................................................................................................................................... 25 Troubleshoot ........................................................................................................................................................... 26 Specification............................................................................................................................................................ 28 General Specification ....................................................................................................................................... 28 Preset Display Modes ...................................................................................................................................... 29 Pin Assignments .............................................................................................................................................. 30 Plug and Play...................................................................................................................................................31
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Safety
National Conventions
The following subsections describe notational conventions used in this document. Notes, Cautions, and Warnings Throughout this guide, blocks of text may be accompanied by an icon and printed in bold type or in italic type. These blocks are notes, cautions, and warnings, and they are used as follows: NOTE: A NOTE indicates important information that helps you make better use of your computer system. CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. WARNING: A WARNING indicates the potential for bodily harm and tells you how to avoid the problem. Some warnings may appear in alternate formats and may be unaccompanied by an icon. In such cases, the specific presentation of the warning is mandated by regulatory authority.
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Power
The monitor should be operated only from the type of power source indicated on the label. If you are not sure of the type of power supplied to your home, consult your dealer or local power company.
The monitor is equipped with a three-pronged grounded plug, a plug with a third (grounding) pin. This plug will fit only into a grounded power outlet as a safety feature. If your outlet does not accommodate the three-wire plug, have an electrician install the correct outlet, or use an adapter to ground the appliance safely. Do not defeat the safety purpose of the grounded plug.
Unplug the unit during a lightning storm or when it will not be used for long periods of time. This will protect the monitor from damage due to power surges.
Do not overload power strips and extension cords. Overloading can result in fire or electric shock. To ensure satisfactory operation, use the monitor only with UL listed computers which have appropriate configured receptacles marked between 100 - 240V ~, Min. 5A The wall socket shall be installed near the equipment and shall be easily accessible.
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Installation
Do not place the monitor on an unstable cart, stand, tripod, bracket, or table. If the monitor falls, it can injure a person and cause serious damage to this product. Use only a cart, stand, tripod, bracket, or table recommended by the manufacturer or sold with this product. Follow the manufacturer's instructions when installing the product and use mounting accessories recommended by the manufacturer. A product and cart combination should be moved with care.
Never push any object into the slot on the monitor cabinet. It could damage circuit parts causing a fire or electric shock. Never spill liquids on the monitor.
Do not place the front of the product on the floor. Leave some space around the monitor as shown below. Otherwise, air-circulation may be inadequate hence overheating may cause a fire or damage to the monitor. See below the recommended ventilation areas around the monitor when the monitor is installed on the wall or with the stand:
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Cleaning
Clean the cabinet regularly with cloth. You can use soft-detergent to wipe out the stain, instead of strong-detergent which will cauterize the product cabinet.
When cleaning, make sure no detergent is leaked into the product. The cleaning cloth should not be too rough as it will scratch the screen surface.
Please disconnect the power cord before cleaning the product.
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Other
If the product is emitting a strange smell, sound or smoke, disconnect the power plug IMMEDIATELY and contact a Service Center.
Make sure that the ventilating openings are not blocked by a table or curtain. Do not engage the LCD monitor in severe vibration or high impact conditions during operation. Do not knock or drop the monitor during operation or transportation. For display with glossy bezel the user should consider the placement of the display as the bezel may cause disturbing reflections from surrounding light and bright surfaces.
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Setup
Contents in Box
Monitor

CD Manual

Warranty Card

Stand

Base

Power Cable

DP Cable

HDMI Cable

Not all signal cables (DP, HDMI cables), CD manual will be provided for all countries and regions. Please check with the local dealer or AOC branch office for confirmation.

8

Setup Base
Please setup or remove the base following the steps as below. Please place the monitor on a soft and flat surface to prevent the scratch. Setup:
Remove:
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Adjusting Viewing Angle
For optimal viewing, it is recommended to look at the full face of the monitor, and then adjust the monitor's angle to your own preference. Hold the stand so you will not topple the monitor when you change the monitor's angle.
NOTE: Do not adjust the viewing angle over 23 degrees in order to avoid damage.
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Connecting the Monitor
Cable Connections In Back of Monitor and Computer:
1 Power 2 HDMI-1 3 HDMI-2 4 DP 5 Earphone out To protect equipment, always turn off the PC and LCD monitor before connecting. 1. Connect the power cable to the AC port on the back of the monitor. 2. (Optional ­ Requires a video card with HDMI port) - Connect one end of the HDMI cable to the back of the
monitor and connect the other end to the computer's HDMI port. 3. (Optional ­ Requires a video card with DP port) - Connect one end of the DP cable to the back of the monitor
and connect the other end to the computer's DP port. 4. Turn on your monitor and computer. If your monitor displays an image, installation is complete. If it does not display an image, please refer Troubleshooting.
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Wall Mounting
Preparing to Install An Optional Wall Mounting Arm.
This monitor can be attached to a wall mounting arm you purchase separately. Disconnect power before this procedure. Follow these steps: 1. Remove the base. 2. Follow the manufacturer's instructions to assemble the wall mounting arm. 3. Place the wall mounting arm onto the back of the monitor. Line up the holes of the arm with the holes in the back of the monitor. 4. Insert the 4 screws into the holes and tighten. 5. Reconnect the cables. Refer to the user's manual that came with the optional wall mounting arm for instructions on attaching it to the wall. Noted : VESA mounting screw holes are not available for all models, please check with the dealer or official department of AOC.
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Adjusting
Hotkeys
1 Menu/Enter/ Power 2 Source/Auto/Exit 3 ECO 4 Volume 5 Clear Vision
Source/Auto/Exit When the OSD is closed, press "up" button will be Source hot key function. When the OSD is closed, press "up" button continuously about 2 second to do auto configure (Only for the models with D-Sub). Volume When there is no OSD, press " " to active volume adjustment bar, press or to adjust volume(Only for the models with Audio) ECO When there is no OSD, press "down" to active ECO adjustment bar, press left or right to adjust ECO mode. Power/Menu/Enter Press the Power button to turn on the monitor. When there is no OSD, Press to display the OSD or confirm the selection. Press about 2 second to turn off the monitor
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Clear Vision 1. When there is no OSD, Press the " " button to activate Clear Vision. 2. Use the " " or " " buttons to select between weak, medium, strong, or off settings. Default setting is always
"off".
3. Press and hold " " button for 5 seconds to activate the Clear Vision Demo, and a message of "Clear Vision Demo: on" will be display on the screen for a duration of 5 seconds. Press Menu or Exit button, the message will disappear. Press and hold " " button for 5 seconds again, Clear Vision Demo will be off.
Clear Vision function provides the best image viewing experience by converting low resolution and blurry images into clear and vivid images.
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OSD Setting
Basic and simple instruction on the control keys.

1. Press the MENU-button to activate the OSD window.

2. Press or to navigate through the functions. Once the desired function is highlighted,

press the  to activate it. If there is a sub-menu, press

to navigate through the sub-menu

functions.

3. Press or to change the settings of the selected function. Press  AUTO to exit. If you want to adjust

any other function, repeat steps 2-3. 4. OSD lock function: When the OSD menu is closed, press and hold the "Down" key for about 10 seconds to lock
or unlock the OSD menu.

Notes: 1. If the product has only one signal input, the item of "Input Select" is disabled. 2. If the product screen size is 4:3 or input signal resolution is native resolution, the item of "Image Ratio" is
disabled. 3. One of Clear vision, DCR, Color Boost, and Picture Boost functions is activated; the other three functions are
turned off accordingly.

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Luminance

1 Press MENU (Menu) to display menu.

2 Press

or

to select

(Luminance), and press  to enter.

3 Press

to select submenu.

4 Press or

to adjust.

5 Press  to exit.

Contrast Brightness

0-100 0-100

Contrast from Digital-register. Backlight Adjustment

Standard

Standard Mode

Text

Text Mode

Eco mode

Internet Game

Internet Mode Game Mode

Movie

Movie Mode

Gamma DCR OverDrive

Sports
Uniformity Gamma1 Gamma2 Gamma3 Off
On
Weak Medium Strong Off

Sports Mode Uniformity Mode Adjust to Gamma 1 Adjust to Gamma 2 Adjust to Gamma 3 Disable dynamic contrast ratio Enable dynamic contrast ratio
Adjust the response time.

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Image Setup

1 Press MENU (Menu) to display menu.

2 Press

or

to select

(Image Setup), and press  to enter.

3 Press

to select submenu.

4 Press

or

to adjust.

5 Press  to exit.

Clock Phase Sharpness H.Position V.Position
(Only for VGA Model)

0-100 0-100 0-100 0-100 0-100

Adjust picture Clock to reduce Vertical-Line noise. Adjust Picture Phase to reduce Horizontal-Line noise. Adjust picture sharpness. Adjust the horizontal position of the picture. Adjust the vertical position of the picture.

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Color Setup

1 Press MENU (Menu) to display menu.

2 Press

or

to select

(Color Setup), and press  to enter.

3 Press

to select submenu.

4 Press

or

to adjust.

5 Press  to exit.

Color Temp.
DCB Mode
DCB Demo Red Green Blue
LowBlue Mode

Warm

Normal

Cool

sRGB

User

Full Enhance ON/OFF

Nature Skin ON/OFF

Green Field ON/OFF

Sky-blue

ON/OFF

AutoDetect ON/OFF

ON/OFF

0-100

0-100

Multimedia

0-100

Internet

Office

Reading

Off

Recall Warm Color Temperature from EEPROM. Recall Normal Color Temperature from EEPROM. Recall Cool Color Temperature from EEPROM. Recall SRGB Color Temperature from EEPROM. Recall User Color Temperature from EEPROM Disable or Enable Full Enhance Mode. Disable or Enable Nature Skin Mode. Disable or Enable Green Field Mode. Disable or Enable Sky-blue Mode. Disable or Enable AutoDetect Mode. Disable or Enable Demo. Red gain from Digital-register. Green gain from Digital-register. Blue gain from Digital-register.
Decrease blue light wave by controlling color temperature

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Picture Boost

1 Press MENU (Menu) to display menu.

2 Press

or

to select

(Picture Boost), and press  to enter.

3 Press

to select submenu.

4 Press

or

to adjust.

5 Press  to exit.

Bright Frame Frame Size Brightness Contrast H. position V. position

ON/OFF 14-100 0-100 0-100 0-100 0-100

Enable/Disable Bright Frame Adjust the Size of the Frame Brightness Adjustment for Enhance Area Contrast Adjustment for Enhance Area Adjust the horizontal position of the Frame Adjust the vertical position of the Frame

Note: Adjust the brightness, contrast, and position of the Bright Frame for better viewing experience.

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OSD Setup

1 Press MENU (Menu) to display menu.

2 Press

or

to select

(OSD Setup), and press  to enter.

3 Press

to select submenu.

4 Press

or

to adjust.

5 Press  to exit.

Language Timeout
DP Capability

5-120 1.1/1.2

H. Position

0-100

V. Position Transparence

0-100 0-100

Break Reminder on or off

Select the OSD language.
Adjust the OSD timeout.
If the DP video content supports DP1.2, please select DP1.2 for DP Capability; otherwise, please select DP1.1.
Adjust the horizontal position of the OSD.
Adjust the vertical position of the OSD.
Adjust the OSD transparence
Break reminder if the user continuously work for more than 1hrs.

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Extra

1 Press MENU (Menu) to display menu.

2 Press

or

to select

(Extra), and press  to enter.

3 Press

to select submenu.

4 Press

or

to adjust.

5 Press  to exit.

Input Select Auto Config. Off Timer
Image Ratio
DDC/CI Reset

Auto/HDMI1/HDMI2/DP Yes / No 0-24 hrs Wide 4:3 1:1 Movie 1 Movie 2 Yes / No Yes / No

Select input signal source. Auto adjust.the picture to default. Select DC off time. Select wide format for display. 4:3 Native resolution over scan: Top 9% ; Down 9% over scan: Top 9% ; Down 17%. Turn on or off DDC/CI Support. Reset the menu to default.

Note: 1. movie1 and movie2 only support digital source. 2. movie1 and movie2 only support Video Timing(example:480I,480P,576I,576P,720P,1080i,1080P)

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Exit

1 Press MENU (Menu) to display menu.

2 Press

or

to select

3 Press  to exit.

(Exit), and press  to enter.

LED Indicator
Status Full Power Mode Power Saving

LED Color White Orange

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Driver
i-Menu
Welcome to "i-Menu" software by AOC. i-Menu makes it easy to adjust your monitor display setting by using on screen menus instead of the OSD button on the monitor. To complete installation, please follow the installation guide.
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e-Saver
Welcome to use AOC e-Saver monitor power management software! The AOC e-Saver features Smart Shutdown functions for your monitors, allows your monitor to timely shutdown when PC unit is at any status (On, Off, Sleep or Screen Saver); the actual shutdown time depends on your preferences (see example below). Please click on "driver/e-Saver/setup.exe" to start installing the e-Saver software, follow the install wizard to complete software installation. Under each of the four PC statuses, you may choose the desired time (in minutes) from the pull-down menu for your monitor to automatically shutdown. The example below illustrated: 1) The monitor will never shutdown when the PC is powered on. 2) The monitor will automatically shutdown 5 minutes after the PC is powered off. 3) The monitor will automatically shutdown 10 minutes after the PC is in sleep/stand-by mode. 4) The monitor will automatically shutdown 20 minutes after the screen saver appears.
You can click "RESET" to set the e-Saver to its default settings like below.
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Screen+
Welcome to "Screen+" software by AOC. Screen+ software is a desktop screen splitting tool; it splits the desktop into different panels, and each panel displays a different window. You only need to drag the window to a corresponding panel when you want to access it. It supports multiple monitor display to make your task easier. Please follow the installation software to install it.
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Troubleshoot

Problem & Question Power LED Is Not ON
No images on the screen

Possible Solutions
Make sure the power button is ON and the Power Cord is properly connected to a grounded power outlet and to the monitor.
 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.

26

Monitor Is Stuck In Active Off-Mode"

The Computer Power Switch should be in the ON position. The Computer Video Card should be snugly fitted in its slot. Make sure the monitor's video cable is properly connected to the computer. Inspect the monitor's video cable and make sure no pin is bent. Make sure your computer is operational by hitting the CAPS LOCK key on the keyboard while observing the CAPS LOCK LED. The LED should either turn ON or OFF after hitting the CAPS LOCK key.

Missing one of the primary colors (RED, GREEN, or BLUE)

Inspect the monitor's video cable and make sure that no pin is damaged. Make sure the monitor's video cable is properly connected to the computer.

Screen image is not centered Adjust H-Position and V-Position or press hot-key (AUTO).
or sized properly

Picture has color defects (white does not look white)

Adjust RGB color or select desired color temperature.

Horizontal or vertical disturbances on the screen

Use Windows 7/8/8.1/10 shut-down mode to adjust CLOCK and PHASE. Press to auto-adjust.

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Specification
General Specification

Panel
Others
Physical Characteristics Environmental

Model name Driving system Viewable Image Size Pixel pitch Video Separate Sync. Display Color
Horizontal scan range Horizontal scan Size(Maximum) Vertical scan range Vertical scan Size(Maximum) Optimal preset resolution
Plug & Play Input Connector Power Source
Power Consumption
Off timer Connector Type Signal Cable Type
Temperature:
Humidity:
Altitude:

U2790VQ TFT Color LCD 27.0 inch, 68.47cm diagonal
0.1554(H)mm x 0.1554(V)mm
HDMI Interface & DP Interface H/V TTL 1.07B Colors 30k ~ 99kHz(HDMI2) 30k ~ 160kHz(HDMI1DP)

596.736mm

23Hz ~ 80Hz

335.664mm

3840x2160@30Hz(HDMI2) 3840x2160@60Hz(HDMI1DP)

VESA DDC2B/CI

DP / HDMIx2 / Earphone

100-240V,50/60Hz

Typical (Brightness = 90,Contrast = 50)

35W

(Brightness = 100,Contrast = 100) Power saving

 40W 0.5W

0-24 hrs

DP / HDMI / Earphone out

Detachable

Operating

0° to 40°C

Non-Operating

-25° to 55°C

Operating

10% to 85% (non-condensing)

Non-Operating

5% to 93% (non-condensing)

Operating

0~ 5000m(0~ 16404 ft)

Non-Operating

0~ 12192m (0~ 40000 ft )

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Preset Display Modes

Standard
VGA
SVGA
XGA
SXGA WXGA+ WSXGA
FHD *** QHD UHD UHD DOS DOS VGA SVGA XGA

Resolution

H. Frequency (kHz)

640x480@60Hz 640x480@72Hz 640x480@75Hz 800x600@56Hz 800x600@60Hz 800x600@72Hz 800x600@75Hz 1024x768@60Hz 1024x768@70Hz 1024x768@75Hz 1280x1024@60Hz 1280x1024@75Hz 1440x900@60Hz 1440x900@60Hz 1680x1050@60Hz 1680x1050@60Hz 1920x1080@60Hz 1152x864@75Hz 1280x960@60Hz 2560x1440@60Hz 3840x2160@30Hz 3840x2160@60Hz
IBM MODES
640x350@70Hz 720x400@70Hz
MAC MODES
640x480@67Hz 832x624@75Hz 1024x768@75Hz

31.469 37.861 37.500 35.156 37.879 48.077 46.875 48.363 56.476 60.023 63.981 79.976 55.935 55.469 65.290 64.674 67.500 67.500 60.000 88.787 67.500 135.00
31.469 31.469
35.000 49.725 60.241

V. Frequency (Hz)
59.940 72.809 75.00 56.250 60.317 72.188 75.000 60.004 70.069 75.029 60.020 75.025 59.887 59.901 59.954 59.883 60.000 75.000 60.000 59.951
30 60
70.087 70.087
66.667 74.551 74.927

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Pin Assignments

19-Pin Color Display Signal Cable

Pin No.

Signal Name

1

TMDS Data 2+

2

TMDS Data 2 Shield

3

TMDS Data 2

4

TMDS Data 1+

5

TMDS Data 1Shield

6

TMDS Data 1

7

TMDS Data 0+

8

TMDS Data 0 Shield

9

TMDS Data 0

10

TMDS Clock +

Pin No. 11 12 13 14 15 16 17 18 19

Signal Name TMDS Clock Shield TMDS Clock CEC Reserved (N.C. on device SCL SDA DDC/CEC Ground +5V Power Hot Plug Detect

20-Pin Color Display Signal Cable

Pin No.

Signal Name

1

ML Lane 3(n)

2

GND

3

ML Lane 3(p)

4

ML Lane 2(n)

5

GND

6

ML Lane 2(p)

7

ML Lane 1(n)

8

GND

9

ML Lane 1(p)

10

ML Lane 0(n)

Pin No. 11 12 13 14 15 16 17 18 19 20

Signal Name GND ML Lane 0(p) CONFIG1 CONFIG2 AUX CH(p) GND AUX CH(n) Hot Plug Detect Return OP PWR DP PWR

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Plug and Play
Plug & Play DDC2B Feature This monitor is equipped with VESA DDC2B capabilities according to the VESA DDC STANDARD. It allows the monitor to inform the host system of its identity and, depending on the level of DDC used, communicate additional information about its display capabilities. The DDC2B is a bi-directional data channel based on the I2C protocol. The host can request EDID information over the DDC2B channel.
31



References

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