AGON AG274QS - Monitor AOC - Free user manual and instructions

Brand	AOC
Model	AGON AG274QS
Category	Monitor
Product Type	Gaming Monitor
Screen Size	27 inches
Panel Type	IPS (In-Plane Switching)
Resolution	2560 x 1440 (QHD)
Refresh Rate	165 Hz
Response Time	1 ms (MPRT)
Brightness	400 cd/m² (typical)
Contrast Ratio	1000:1 (typical)
Viewing Angle	178° / 178° (horizontal/vertical)
Connectivity	2x HDMI 2.0, 1x DisplayPort 1.4, 2x USB 3.0 (downstream), 1x USB 3.0 (upstream)
Stand Features	Tilt (-5° to 23°), Swivel (-30° to 30°), Pivot (90°), Height adjustment (150 mm)
VESA Mount	100 mm x 100 mm
Power Consumption	32 W (typical), <0.5 W (standby)
Dimensions (with stand)	613.5 x 407.2 x 246.8 mm
Weight	6.5 kg (with stand)
Safety Features	Kensington lock slot, power management (Energy Star certified)
Maintenance and Cleaning	Unplug before cleaning; use soft dry microfiber cloth; avoid exposing to moisture
Repairability and Spare Parts	Replacement parts available via AOC service centers; professional repair recommended

Frequently Asked Questions - AGON AG274QS AOC

How do I enable the 165 Hz refresh rate on the AGON AG274QS?

The AOC AGON AG274QS supports a native refresh rate of 165 Hz. To enable it, connect via DisplayPort and set the refresh rate in your operating system's display settings to 165 Hz. If the option is not available, ensure your graphics card drivers are updated and the monitor is set to its optimal resolution (2560 x 1440).

What cables are included with the monitor?

The monitor typically includes a DisplayPort cable, an HDMI cable, a USB 3.0 upstream cable, and a power cord. Always check the packaging list in the user manual for exact contents.

How should I clean the screen safely?

First, unplug the monitor from the power outlet. Use a soft, damp, lint-free cloth to gently wipe the screen. Avoid using harsh chemicals, abrasive cleaners, or spraying liquid directly on the panel. For stubborn smudges, use a small amount of cleaning fluid designed for screens.

Can I mount the monitor on a VESA arm?

Yes, the AOC AGON AG274QS is VESA mount compatible (100x100 mm). Remove the plastic covers on the back to access the mounting holes, then attach the bracket with the provided screws. Ensure the arm can support the monitor's weight (about 6.5 kg).

How do I adjust the monitor's height and tilt?

The stand provides height adjustment, tilt, swivel, and pivot. To adjust height, use both hands to press down or lift the top of the monitor while holding the base. For tilt, gently push or pull the top edge. Always hold the monitor securely to avoid accidental drops.

How can I switch between HDMI and DisplayPort inputs?

Press the joystick button on the back of the monitor to open the OSD menu. Navigate to Input Select and choose the active port (HDMI1, HDMI2, or DisplayPort). You can also use the dedicated shortcut key if available.

How do I enable HDR mode?

The AGON AG274QS supports DisplayHDR 400. To enable HDR, connect the monitor via DisplayPort or HDMI and set the HDR setting to On in the OSD menu. Also, enable HDR in your operating system's display settings (Windows HDR mode) or in the game's video options for the best experience.

Is the monitor compatible with NVIDIA G-Sync?

The monitor is NVIDIA G-Sync compatible. To use it, connect via DisplayPort and ensure G-Sync is enabled in the NVIDIA Control Panel. This feature reduces screen tearing and stuttering when using a compatible graphics card.

How do I reset the monitor to factory settings?

Open the OSD menu using the joystick button. Navigate to "Other" or "Settings" and select "Reset" or "Factory Reset". Confirm the action, and all settings will return to their default values.

What is the warranty period for the AGON AG274QS?

AOC typically offers a 3-year warranty on gaming monitors. The warranty covers manufacturing defects and does not cover damage from misuse. Keep your purchase receipt and register your product on the AOC website for full support.

USER MANUAL AGON AG274QS AOC

Safety 1

National Conventions....1

Power 2

Installation....3

Cleaning 4

Other 5

Setup 6

Contents in Box....6

Setup Stand & Base....7

Adjusting the monitor 8

Connecting the Monitor 9

Wall Mounting....10

G-SYNC function (Available for selective models)....11

AMD FreeSync Premium function (Available for selective models)....11

Adaptive-Sync function (Available for selective models)....11

HDR 12

Adjusting....13

Hotkeys 13

Quick Switch 14

OSD Key Guide (Menu) 15

OSD Setting 17

Game Setting....18

Luminance 19

Image Setup 20

Color Setup....21

Audio....22

Light FX 23

Extra 24

OSD Setup....25

LED Indicator 26

Troubleshoot....27

Specification 28

General Specification....28

Preset Display Modes 29

Pin Assignments....30

Plug and Play 31

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.

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 AC, Min. 5A.

The wall socket shall be installed near the equipment and shall be easily accessible.

For use only with the attached power adapter Manufacturers: TPV ELECTRONICS (FUJIAN) CO.,LTD. Model: ADPC20120

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.

If you mount the monitor on a wall or shelf, use a mounting kit approved by the manufacturer and follow the kit instructions.

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.

To avoid potential damage, for example the panel peeling from the bezel, ensure that the monitor does not tilt downward by more than -5 degrees. If the -5 degree downward tilt angle maximum is exceeded, the monitor damage will not be covered under warranty.

See below the recommended ventilation areas around the monitor when the monitor is installed on the wall or on the stand:

Installed with stand

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.

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.

Setup

Contents in Box

CD Manual Stand Screwdriver BaseWarranty card

* Not all signal cables will be provided for all countries and regions. Please check with the local dealer or AOC branch office for confirmation.

Setup Stand & Base

Please setup or remove the base following the steps as below.

Setup:

Remove:

Adjusting the monitor

For optimal viewing it is recommended to look at the full face of the monitor, 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.

You are able to adjust the monitor as below:

NOTE:

Do not touch the LCD screen when you change the angle. It may cause damage or break the LCD screen.

Warning:

1. To avoid potential screen damage, such as panel peeling, ensure that the monitor does not tilt downward by more than -5 degrees.

2. Do not press the screen while adjusting the angle of the monitor. Grasp only the bezel.

Connecting the Monitor

Cable Connections In Back of Monitor and Computer:

1. Microphone in
2. Earphone (Combined with Microphone)
3. USB3.2 Gen1 downstream + fast charging
4. USB3.2 Gen1 downstream
5. USB3.2 Gen1 upstream
6. Power
7. HDMI1
8. HDMI2
9. DP1
10. DP2
11. Microphone out (Connect to PC)
12. Quick Switch port

Connect to PC

1. Connect the power cord to the back of the display firmly.
2. Turn off your computer and unplug its power cable.
3. Connect the display signal cable to the video connector on the back of your computer.
4. Plug the power cord of your computer and your display into a nearby outlet.
5. Turn on your computer and display.

If your monitor displays an image, installation is complete. If it does not display an image, please refer Troubleshooting.

To protect equipment, always turn off the PC and LCD monitor before connecting.

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. 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.

* Display design may differ from those illustrated.

Warning:

1. To avoid potential screen damage, such as panel peeling, ensure that the monitor does not tilt downward by more than -5 degrees.
2. Do not press the screen while adjusting the angle of the monitor. Grasp only the bezel.

G-SYNC function (Available for selective models)

Compatible Graphics Card: GeForce GTX 650 Ti Boost or higher (for a list of compatible graphics cards, please visit https://www.nvidia.com/en-in/geforce/products/g-sync-monitors/g-sync-hdr-requirements/)

Driver: GeForce 331.58 or higher OS: Windows 7/8/8.1

AMD FreeSync Premium function (Available for selective models)

1. AMD Freesync premium function is working with DP/HDMI

2. Compatible Graphics Card: Recommend list is as the below, also could be checked by visiting www.AMD.com

3. Radeon™ RX Vega series

4. Radeon™ RX 500 series
5. Radeon™ RX 400 series
6. Radeon™ R9/R7 300 series (R9 370/X, R7 370/X, R7 265 except)
7. Radeon™ Pro Duo (2016)
8. Radeon™ R9 Nano series
9. Radeon™ R9 Fury series
10. Radeon™ R9/R7 200 series (R9 270/X, R9 280/X except)

Adaptive-Sync function (Available for selective models)

1. Adaptive-Sync function is working with DP/HDMI

2. Compatible Graphics Card: Recommend list is as the below, also could be checked by visiting www.AMD.com

3. Radeon™ RX Vega series

4. Radeon™ RX 500 series
5. Radeon™ RX 400 series
6. Radeon™ R9/R7 300 series (R9 370/X, R7 370/X, R7 265 except)
7. Radeon™ Pro Duo (2016)
8. Radeon™ R9 Nano series
9. Radeon™ R9 Fury series
10. Radeon™ R9/R7 200 series (R9 270/X, R9 280/X except)

HDR

It is compatible with input signals in HDR10 format.

The display may automatically activate the HDR function if the player and content are compatible. Please contact the device manufacturer and the content provider for information on the compatibility of your device and content. Please select "OFF" for the HDR function when you have no need for automatic activation function.

Note:

1. No special setting is needed for the DisplayPort/HDMI interface in WIN10 versions lower (older) than V1703.
2. Only the HDMI interface is available and the DisplayPort interface cannot function in WIN10 version V1703.
3. 3840x2160 @50Hz /60Hz not suggestion used in PC device only for UHD player or Xbox-ones / PS4-Pro.
   a. The display resolution is set to 3840*2160, and HDR is preset to ON. Under these conditions, the screen may slightly dim, indicating HDR has been activated.
   b. After entering an application, the best HDR effect can be achieved when the resolution is changed to 3840*2160 (if available).

Adjusting

Hotkeys

1 Source/Up

2 Dial Point/Down

3 Game Mode/Left

4 Light FX /Right

5 Power/ Menu/Enter

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 seconds to turn off the monitor.

Dial Point/Down

When there is no OSD, press Dial Point button to show / hide Dial Point.

Game Mode/Left

When there is no OSD, press "Left" key to open game mode function, then press "Left" or "Right" key to select game mode (FPS, RTS, Racing, Gamer 1, Gamer 2 or Gamer 3) basing on the different game types.

Light FX/Right

When there is no OSD, press "Right" key to active Light FX function.

Source/Up

When the OSD is closed, press Source/Auto/Up button will be Source hot key function.

Quick Switch

When there is no OSD, press the ◀ button to open game mode function, then press ◀ or ▶ key to select game mode (FPS, RTS, Racing, Gamer 1, Gamer 2 or Gamer 3) basing on the different game types.

When there is no OSD, press "Right" key to active Light FX function.

Menu/OK:

When there is no OSD, Press to display the OSD or confirm the selection.

When the OSD is closed, press ▲ button will be Source hot key function.

When there is no OSD, press Dial Point button to show / hide Dial Point.

1:

Press the 1 button to select Gamer 1 mode

2:

Press the 2 button to select Gamer 2 mode

3:

Press the 3 button to select Gamer 3 mode

Press to exit OSD.

OSD Key Guide (Menu)

Enter : Use Enter key to enter the next OSD level

Move : Use Left / Up / Down key to move OSD selection

Exit : Use Right key to exit OSD

Enter : Use Enter key to enter the next OSD level

Move : Use Right / Up / Down key to move OSD selection

Exit : Use Left key to exit OSD

Enter : Use Enter key to enter the next OSD level

Move : Use Up / Down key to move OSD selection

Exit : Use Left key to exit OSD

Move : Use Left / Right / Up / Down Key to move OSD selection

Exit : Use Left key to exit OSD to previous OSD level

Enter : Use Right key to enter next OSD level

Select : Use Up / Down key to move OSD selection

Enter : Use Enter key to apply the OSD setting and back to previous OSD level

Select : Use Down key to adjust OSD setting

Select : Use Up / Down key to adjust OSD setting

Enter : Use Enter key to exit OSD to previous OSD level

Select : Use Left / Right key to adjust OSD setting

OSD Setting

Basic and simple instruction on the control keys.

1). Press the MENU-button to activate the OSD window.
2). Follow Key Guide to move or select (adjust) OSD settings
3). OSD Lock/Unlock Function: To lock or unlock the OSD, press and hold the Down-button for 10s while OSD function is not active.

Notes:

1). If the product has only one signal input, the item of "Input Select" is disable to adjust.
2). ECO modes (except Standard mode), DCR and DCB mode, for these three states that only one state can exist.

Game Setting

	Game Mode	FPS	For playing FPS (first Person Shooters) games. Improves dark theme black level details.
		RTS	For playing RTS (Real Time Strategy). Improves the image quality.
		Racing	For playing Racing games, Provides fastest response time and high color saturation.
		Gamer 1 User's preference settings saved as Gamer 1.
		Gamer 2 User's preference settings saved as Gamer 2.
		Gamer 3 User's preference settings saved as Gamer 3.
		off	No optimization by Smart image game
	Shadow Control	0-100	Shadow Control Default is 50, then end-user can adjust from 50 to 100 or 0 to increase contrast for clear picture.1. If picture is too dark to be saw the detail clearly, adjusting from 50 to 100 for clear picture.2. If picture is too white to be saw the detail clearly, adjusting from 50 to 0 for clear picture
	Game Color	0-20	Game Color will provide 0-20 level for adjusting saturation to get better picture.
	MBR	0-20	Adjust the Motion Blur Reduction.
	Adaptive-Sync/G-SYNC/AMD FreeSync(Available for selective models)	On / Off	Disable or Enable Adaptive-Sync/G-SYNC/AMD FreeSync Premium.
	Overdrive	Weak/Medium/Strong/Boost/Off	Adjust the response time.
	Low Input lag	On / Off Turn off frame buffer to decrease input lag
	QuickSwitch LED	On / Off Disable or Enable QuickSwitch LED
	Frame Counter	Off / Right-Up /Right-Down / Left-Down / Left-Up	Display V frequency on the corner selected(Frame counter feature only works with AMD graphic card.)

Note:

1. When "HDR Mode" under "Image Setup" is set to non-off, "Game Mode", "Shadow Control" and "Game Color" can't be adjusted.
2. When "HDR" under "Image Setup" is set to non-off, "Game Mode", "Shadow Control", "Game Color", "MBR" and "Boost" under "Overdrive" can't be adjusted or selected.

Luminance

	Contrast 0-100 Contrast from Digital-register.
	Brightness 0-100	Backlight Adjustment
	Eco mode	Standard Standard Mode
		Text Text Mode
		Internet Internet Mode
		Game Game Mode
		Movie Movie Mode
		Sports Sports Mode
		Reading Reading Mode
	Gamma	Gamma1 Adjust to Gamma 1
		Gamma2 Adjust to Gamma 2
		Gamma3 Adjust to Gamma 3
	DCR Off/On	Disable/ Enable dynamic contrast ratio

Note:

1. When "HDR Mode" under "Image Setup" is set to non-off, "Contrast", "Eco Mode" and "Gamma" can't be adjusted.
2. When "HDR" under "Image Setup" is set to non-off, all items under "Luminance" can't be adjusted.

Image Setup

	HDR	Off / DisplayHDR / HDR Picture / HDR Movie / HDR Game	Set the HDR profile according to your usage requirements.Note:When HDR content is detected, the HDR option will be displayed for adjustment.
	HDR Mode	Off / HDR Picture / HDR Movie / HDR Game	Optimized for the color and contrast of the picture, which simulates HDR effect.Note:When HDR content is not detected, the HDR mode option will be displayed for adjustment.

Note:

When HDR is detected, the HDR option is displayed for adjustment; when HDR is not detected, the HDR Mode option is displayed for adjustment.

Color Setup

	LowBlue Mode	Off / Multimedia / Internet / Office / Reading		Decrease blue light wave by controlling color temperature.
	Color Temp.	Warm Recall Warm Color Temperature from EEPROM.
		Normal		Recall Normal Color Temperature from EEPROM.
		Cool Recall Cool Color Temperature from EEPROM.
		sRGB Recall SRGB Color Temperature from EEPROM.
		User	Red Red Gain from Digital-register
			Green Green Gain Digital-register.
			Blue Blue Gain from Digital-register
	DCB Mode	Off on or off Disable or Enable DCB Mode
		Full Enhance on or off Disable or Enable Full Enhance Mode
		Nature Skin on or off Disable or Enable Nature Skin Mode
		Green Field on or off Disable or Enable Green Field Mode
		Sky-blue	on or off Disable or Enable Sky-blue Mode
		AutoDetect	on or off Disable or Enable AutoDetect Mode
	DCB Demo		on or off Disable or Enable Demo
	Red		0-100	Red gain from Digital-register.
	Green		0-100	Green gain from Digital-register.
	Blue		0-100	Blue gain from Digital-register.

Note:

When "HDR Mode" or "HDR" under "Image Setup" is set to non-off, all items under "Color Setup" can't be adjusted.

Audio

	Volume 0-100 Adjust volume setting
	DTS Sound	Game / Rock /Classical / Live /Theater / Off	Select DTS Sound mode.Note: It may take up to 2 seconds to switch modes.
	TruVolume HD On / Off Disable or Enable TruVolume HD.
	200Hz 0-100		Low frequency base audio, also the root audio frequency of the chord in the tone.
	500Hz 0-100		Mainly used to express vocals (eg. singing, reading), Strengthen the thickness and strength of vocals.
	2.5KHz 0-100		This frequency has a strong penetrating power and can be improved to improve the brightness and clarity of the sound.
	7KHz	0-100 Enhance the	clarity of vocals.
	10KHz	0-100	The high-pitched area of music is most sensitive to the high-frequency performance of the sound.

Light FX

	Light FX	Off / Low / Medium / Strong	Select the intensity of Light FX.
	Light FX Mode	Audio1 / Audio2 / Static / Dark Point Sweep / Gradient Shift / Spread Fill / Drip Fill / Spreading Drip Fill / Breathing / Light Point Sweep / Zoom / Rainbow / Wave / Flashing / Demo	Select Light FX Mode
	Pattern	Red / Green / Blue / Rainbow / User Define	Select Light FX Pattern
	Foreground R	0-100	User can adjust Light FX foreground color, when Pattern setting to user define
	Foreground G
	Foreground B
	Background R	0-100	User can adjust Light FX background color, when Pattern setting to user define
	Background G
	Background B

Extra

	Input Select	AUTO/HDMI1/HDMI2/DP1/DP2	Select Input Signal Source
	USB On or Off		For model need to turn on/off USB power during power saving
	Logo Projector Off/Low/Medium/Strong It's projection logo function.
	Red 0 ~ 100 Red gain from Digital-register.
	Green 0 ~ 100 Green gain from Digital-register.
	Blue 0 ~ 100 Blue gain from Digital-register.
	Off timer 0-24hrs	Select DC off time
	Image Ratio	Wide / 4:3 / 1:1 / 17"(4:3) / 19"(4:3) / 19"(5:4) / 19"W(16:10) / 21.5"W(16:9) / 22"W(16:10) / 23"W(16:9) / 23.6"W(16:9) / 24"W(16:9)	Select image ratio for display.
	DDC/CI	Yes or No	Turn ON/OFF DDC/CI Support
	Reset	Yes or No	Reset the menu to default

OSD Setup

	Language Select the OSD language
	Timeout 5-120 Adjust the OSD Timeout
	DP Capability 1.1/1.2/1.4		please be noted that only DP1.2/DP1.4 support Adaptive-Sync/G-SYNC/AMD FreeSync Premium function
	H. Position 0-100 Adjust the horizontal position of OSD
	V. Position 0-100 Adjust the vertical position of OSD
	Transparence 0-100 Adjust the transparence of OSD
	Break Reminder on /off Break reminder if the user continuously work for more than 1hrs

Note:

If the DP video content supports DP1.2/DP1.4, please select DP1.2/DP1.4 for DP Capability; otherwise, please select DP1.1

LED Indicator

Status LED Color
Full Power Mode White
Active-off Mode Orange

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 D-SUB cable)Check the D-SUB cable connection.(Connected using the HDMI cable)Check the HDMI cable connection.(Connected using the DP cable)Check the DP cable connection.*D-SUB/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 7/8/10) 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.
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 or sized properly	Adjust H-Position and V-Position or press hot-key (AUTO).
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 7/8/10 shut-down mode to adjust CLOCK and FOCUS.Press to auto-adjust.

Specification

General Specification

Panel	Model name AG274QS
	Driving system TFT Color LCD
	Viewable Image Size 68.5 cm diagonal
	Pixel pitch	0.2331mm(H) x 0.2331mm(V)
	Display Color 16.7M
Others	Horizontal scan range	30~230kHz (HDMI)30~255kHz (DP)
	Horizontal scan Size(Maximum) 596.	736 mm
	Vertical scan range	48~144Hz (HDMI)48~300Hz (DP)
	Vertical Scan Size(Maximum) 335.66	4 mm
	Optimal preset resolution 2560 x 144	0@60Hz
	Max resolution	2560 x 1440@144Hz (HDMI)2560 x 1440@300Hz (DP)
	Plug & Play VESA DDC2B/CI
	Power Source 20Vdc, 6.0A
	Power Consumption	Typical (default brightness and contrast) 40W
		Max. (Brightness = 100, contrast =100) ≤120W
		Standby mode ≤0.5W
Physical Characteristics	Connector Type HDMI/ DP/ USB/ Ea	phone out/ Microphone In
	Signal Cable Type	Detachable
Environmental	Temperature	Operating 0°~40°
		Non-Operating -25°~55°
	Humidity	Operating 10% ~ 85%	(non-condensing)
		Non-Operating 5% ~ 93% (non-condensing)
	Altitude	Operating 0~5000 m	(0~16404ft)
		Non-Operating 0~121	92m (0~40000ft)

Preset Display Modes

STANDARD RESOLUTION		HORIZONTAL FREQUENCY(kHz)	VERTICAL FREQUENCY(Hz)
VGA 640x480@60Hz 31.469 59.94
VGA 640x480@67Hz 35 66.667
VGA 640x480@72Hz 37.861 72.809
VGA 640x480@75Hz 37.5 75
VGA 640x480@100Hz 51.08 99.769
VGA 640x480@120Hz 61.91 119.518
DOS MODE 720x400@70Hz 31.469 70.087
DOS MODE 720x480@60Hz 29.855 59.710
SD 720x576@50Hz 31.25 50
SVGA	800x600@56Hz 35.156 56.25
SVGA	800x600@60Hz 37.879 60.317
SVGA	800x600@72Hz 48.077 72.188
SVGA	800x600@75Hz 46.875 75
SVGA	800x600@100Hz	63.684 99.662
SVGA	800x600@120Hz	76.302 119.97
SVGA	832x624@75Hz 49.725 74.551
XGA 1024x768@60Hz	48.363 60.004
XGA 1024x768@70Hz	56.476 70.069
XGA 1024x768@75Hz	60.023 75.029
XGA	1024x768@100Hz	81.577 99.972
XGA	1024x768@120Hz	97.551	119.989
SXGA	1280x1024@60Hz	63.981 60.02
SXGA	1280x1024@75Hz	79.975 75.025
Full HD	1920x1080@60Hz 67.5 60
Full HD	1920x1080@120Hz	135 120
QHD	2560x1440@60Hz	88.787 59.951
QHD	2560x1440@120Hz	182.996	119.998
QHD	2560x1440@144Hz	222.056	143.912
QHD(for DP)	2560x1440@200Hz	294	200
QHD(for DP)	2560x1440@240Hz	352.803	240.002
QHD(for DP)	2560x1440@270Hz	396.9 270
QHD(for DP)	2560x1440@300Hz	441	300

Pin Assignments

19-Pin Color Display Signal Cable

Pin No.	Signal Name Pin No.	Signal Name	Pin No.	Signal Name
1. TMDS	Data 2+ 9. TMDS Data 0- 17. DDC/CEC Ground
2. TMDS	Data 2 Shield 10. TMDS Clock + 18. +5V Power
3. TMDS	Data 2- 11. TMDS Clock Shield 19. Hot Plug Detect
4. TMDS	Data 1+ 12. TMDS Clock-
5. TMDS	Data 1Shield 13. CEC
6. TMDS	Data 1- 14. Reserved (N.C. on device)
7. TMDS	Data 0+ 15. SCL
8. TMDS	Data 0 Shield 16. SDA

20-Pin Color Display Signal Cable

Pin No. Signal Name Pin No. Signal Name
1 ML_Lane 3 (n) 11 GND
2 GND	12 ML_Lane 0 (p)
3 ML_Lane 3 (p)	13 CONFIG1
4 ML_Lane 2 (n)	14 CONFIG2
5 GND	15 AUX_CH(p)
6 ML_Lane 2 (p)	16 GND
7 ML_Lane 1 (n)	17 AUX_CH(n)
8 GND	18 Hot Plug Detect
9 ML_Lane 1 (p)	19 Return DP_PWR
10 ML_Lane 0 (n)	20 DP_PWR

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.

For DTS patents, see http://patents.dts.com. Manufactured under license from DTS Licensing Limited. DTS, the Symbol, & DTS and the Symbol together are registered trademarks, and DTS Sound is a trademark of DTS, Inc. © DTS, Inc. All Rights Reserved.