AOC AGON AG405UXC User manual

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®
www.aoc.com
©2022 AOC. All Rights Reserved.
LCD Monitor
User Manual
AG405UXC

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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
AMD FreeSync Premium function........................................................................................................................... 10
HDR .........................................................................................................................................................................11
KVM function........................................................................................................................................................... 12
Adjusting............................................................................................................................................................................. 14
Hotkeys ................................................................................................................................................................... 14
OSD Key Guide (Menu) .......................................................................................................................................... 16
OSD Setting ............................................................................................................................................................ 18
Game Setting............................................................................................................................................... 19
Luminance ................................................................................................................................................... 21
PIP Setting................................................................................................................................................... 22
Color Setup.................................................................................................................................................. 24
Extra ............................................................................................................................................................ 25
OSD Setup................................................................................................................................................... 27
LED Indicator .......................................................................................................................................................... 28
Troubleshoot....................................................................................................................................................................... 29
Specication ....................................................................................................................................................................... 30
General Specication .............................................................................................................................................. 30
Preset Display Modes ............................................................................................................................................. 31
Pin Assignments...................................................................................................................................................... 32
Plug and Play .......................................................................................................................................................... 33

1
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 specic presentation of the
warning is mandated by regulatory authority.

2
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 t
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 re or electric shock.
To ensure satisfactory operation, use the monitor only with UL listed computers which have appropriate congured
receptacles marked between 100-240V AC, Min. 5A.
The wall socket shall be installed near the equipment and shall be easily accessible.

3
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 re or electric
shock. Never spill liquids on the monitor.
Do not place the front of the product on the oor.
If you mount the monitor on a wall or shelf, use a mounting kit approved by the manufacturer and follow the kit
instructions.
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.
Leave some space around the monitor as shown below. Otherwise, air-circulation may be inadequate hence
overheating may cause a re or damage to the monitor.
See below the recommended ventilation areas around the monitor when the monitor is installed on the stand:
Installed with stand
Installed with stand
12 inches
30cm
4 inches
10cm
4 inches
10cm
4 inches
10cm
Leave at least this mush
space around the set

4
Cleaning
Clean the cabinet regularly with a water-dampened, soft cloth.
When cleaning use a soft cotton or microber cloth. The cloth should be damp and almost dry, do not allow liquid
into the case.
Please disconnect the power cord before cleaning the product.

5
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.
The USB Type-C port could only be connected to specify equipment with re enclosure in compliance with IEC
62368-1 or IEC 60950-1.

6
Setup
Contents in Box
Power Cable DP Cable HDMI Cable USB upstream Cable USB C-C
*
*
* *
WW QSG
Warranty card Base
Stand Stand Screws
Remote control Batteries
Screwdriver
**
Not all signal cables will be provided for all countries and regions. Please check with the local dealer or AOC branch
o󰀩ce for conrmation.

7
Setup Stand & Base
Please setup or remove the base following the steps as below.
Setup:
Remove:

8
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:
30° 30°
150mm
-5°
23°
NOTE:
Do not touch the LCD screen when you change the angle.Touching the LCD screen may cause damage.
-5°
0° 90°
* Display design may di󰀨er from those illustrated.
WARNING:
• To avoid potential screen damage, such as panel peeling, ensure that the monitor does not tilt downward by more
than -5 degrees.
• Do not press the screen while adjusting the angle of the monitor. Grasp only the bezel.

9
Connecting the Monitor
Cable Connections In Back of Monitor and Computer:
21 3 4 5 6 7 8 9 10 11
1. Power Switch
2. Power
3. HDMI 1
4. HDMI 2
5. DP
6. USB C
7. Earphone
8. USB upstream
9. USB3.2 Gen1 downstream + fast charging
USB3.2 Gen1 downstream x1
10. USB3.2 Gen1 downstream x2
11. Quick Switch port
Connect to PC
1. Connect the power cord to the back of the display rmly.
2. Turn o󰀨 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 o󰀨 the PC and LCD monitor before connecting.

10
AMD FreeSync Premium function
1. AMD FreeSync Premium function is working with DP/HDMI/USB C
2. Compatible Graphics Card: Recommend list is as the below, also could be checked by visiting www.AMD.com
Graphics Cards
• RadeonTM RX Vega series
• RadeonTM RX 500 series
• RadeonTM RX 400 series
• RadeonTM R9/R7 300 series (excluding R9 370/X)
• RadeonTM Pro Duo (2016 edition)
• RadeonTM R9 Nano
• RadeonTM R9 Fury series
• RadeonTM R9/R7 200 series (excluding R9 270/X, R9 280/X)
Processors
• AMD RyzenTM 7 2700U
• AMD RyzenTM 5 2500U
• AMD RyzenTM 5 2400G
• AMD RyzenTM 3 2300U
• AMD RyzenTM 3 2200G
• AMD PRO A12-9800
• AMD PRO A12-9800E
• AMD PRO A10-9700
• AMD PRO A10-9700E
• AMD PRO A8-9600
• AMD PRO A6-9500
• AMD PRO A6-9500E
• AMD PRO A12-8870
• AMD PRO A12-8870E
• AMD PRO A10-8770
• AMD PRO A10-8770E
• AMD PRO A10-8750B
• AMD PRO A8-8650B
• AMD PRO A6-8570
• AMD PRO A6-8570E
• AMD PRO A4-8350B
• AMD A10-7890K
• AMD A10-7870K
• AMD A10-7850K
• AMD A10-7800
• AMD A10-7700K
• AMD A8-7670K
• AMD A8-7650K
• AMD A8-7600
• AMD A6-7400K

11
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 automatical activation function.
Note:
1. Only the HDMI interface is available and the DisplayPort interface cannot function in WIN10 version V1703.
2. The display resolution is set to 3440x1440@60Hz, and HDR is preset to ON. Under these conditions, the screen may
slightly dim, indicating HDR has been activated.
3440 x 1440

12
KVM function
What is KVM?
With KVM function, you can show two PCs, or two notebooks, or one PC and one notebook on one AOC monitor and
control the two devices with one set of keyboard and mouse. Switch your control over your PC or notebook devices by
choosing input signal source on “Input Select” of OSD menu.
How to use KVM?
Step 1: Please connect one device (PC or notebook) to monitor via USB C.
Step 2: Please connect the other device to monitor via HDMI or DisplayPort. Then please also connect this device to
monitor with USB upstream.
Step 3: Please connect your peripherals (keyboard and mouse) to monitor via USB port.
Device 2
USB USB
USB-C
Device 1
USB UP
Note: Display design may differ from that illustrated
Step 4: Enter to OSD menu. Go to Extra page and select “Auto”, “USB C”, or “USB UP” of USB Selection tab.

13
Exit Enter Select
Extra
Off Timer 0
Volume 50
AutoInput Select
USB Off
USB Selection Auto
Resolution: 1920(H)x1080(V) SDR
H.Frequency: 68 KHz
V.Frequency: 60 Hz
USB Selection Function Description
Auto Auto selects USB C or USB Up depending on the input source.
USB C Provides USB Hub function through Type-C cable.
USB Up Provides USB Hub function through USB B cable.

14
Adjusting
Hotkeys
1 2 3 4 5 6 7
1 KVM
2 Source/Up
3 Dial Point/Down
4 Game Mode/Left
5 Shadow Control /Right
6 Power/ Menu/Enter
7 LED
Power/Menu/Enter
Press the Power button to turn on the monitor.
When there is no OSD, Press to display the OSD or conrm the selection. Press about 2 seconds to turn o󰀨 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 di󰀨erent game types.

15
1Press to switch power on and
o󰀨.
2Change the signal input source.
3Access the OSD menu.
4Adjust the OSD options upwards.
5Return to previous OSD level.
6Conrm the OSD adjustment/
Access the OSD menu. .
7Access the OSD menu.
Conrm the OSD adjustment.
8Adjust the OSD options down.
9Open gaming mode.
10 Exit OSD menu.
11 Turn down the brightness
12 Turn up the brightness
13 Turn down the volume
14 Turn up the volume
15 Mute
Shadow Control/Right
When there is no OSD, Press Shadow Control button to
active Shadow Control adjustment bar, Press “ Right”
to adjust contrast for clear picture.
Source/Up
When the OSD is closed, press Source/Up button will be
Source hot key function.
Description of the remote
control buttons
1
3
6
7
10
12
14
2
5
4
8
9
11
13
15

16
OSD Key Guide (Menu)
Enter Move Exit
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 Move Exit
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 Move Exit
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
Enter Move
Move : Use Left / Right / Up / Down Key to move OSD selection
Exit Enter Select
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 Select
Enter : Use Enter key to apply the OSD setting and back to previous OSD level
Select : Use Down key to adjust OSD setting

17
Enter Select
Select : Use Up / Down key to adjust OSD setting
Enter Select
Enter : Use Enter key to exit OSD to previous OSD level
Select : Use Left / Right key to adjust OSD setting

18
OSD Setting
Basic and simple instruction on the control keys.
Enter Move Exit
OSD Setup
Extras
PIP Seng
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.