AOC 27G4 User manual

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Safety ................................................................................................................................................................................. 1
National Conventions .......................................................................................................................................... 1
Power......................................................................................................................................................................2
Installation .............................................................................................................................................................3
Cleaning .................................................................................................................................................................4
Other.......................................................................................................................................................................5
Setup..................................................................................................................................................................................6
Contents in Box.....................................................................................................................................................6
Set-up Stand & Base ............................................................................................................................................7
Adjusting Viewing Angle .................................................................................................................................... 8
Connecting the Monitor ......................................................................................................................................9
Wall Mounting .....................................................................................................................................................10
Adaptive-Sync function...................................................................................................................................... 11
HDR ....................................................................................................................................................................... 12
Adjusting ......................................................................................................................................................................... 13
Hotkeys................................................................................................................................................................. 13
OSD Setting ......................................................................................................................................................... 14
Luminance ................................................................................................................................................ 15
Color Setup............................................................................................................................................... 16
Picture Boost............................................................................................................................................ 17
OSD Setup ................................................................................................................................................ 18
Game Setting ........................................................................................................................................... 19
Extra.......................................................................................................................................................... 20
Exit ............................................................................................................................................................. 21
LED Indicator .......................................................................................................................................................22
Troubleshoot...................................................................................................................................................................23
Specication ...................................................................................................................................................................24
General Specication.........................................................................................................................................24
Preset Display Modes ........................................................................................................................................25
Pin Assignments ................................................................................................................................................ 26
Plug and Play.......................................................................................................................................................27

1
Safety
National Conventions
The following subsections describe national 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.
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.
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
Installed with stand
12 inches
30cm
4 inches
10cm
4 inches
10cm
4 inches
10cm
Leave at least this
much 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 power cords shall be safety approved. For Germany, it shall be H03VV-F, 3G, 0.75 mm2, or better. For
other countries, the suitable types shall be used accordingly.
Excessive sound pressure from earphones and headphones can cause hearing loss. Adjustment of the
equalizer to maximum increases the earphones and headphones output voltage and therefore the sound
pressure level.

6
Setup
Contents in Box
*
*
Quick Start Guide
HDMI Cable DP Cable
*
*
Monitor
Power Cable
Stand Base
Warranty Card
Not all signal cables will be provided for all countries and regions. Please check with the local dealer or
AOC branch ofce for conrmation.

7
Set-up Stand & Base
Please setup or remove the base following the steps as below.
Setup:
Remove:
2
4
3
3
4
1

8
Adjusting Viewing Angle
To achieve the best viewing experience, it is recommended that the user can make sure they are able to look
at their whole face on the screen, then adjust the monitor’s angle based on personal 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:
23
130mm
30 30
90°
90°
NOTE:
Do not touch the LCD screen when you change the angle. Touching the LCD screen may cause damage.
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:
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23
1. HDMI
2. DisplayPort
3. Earphone
4. Power
Connect to PC
1. Connect the power cord to the back of the display rmly.
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 to
Troubleshoot.
To protect equipment, always turn off the PC and LCD monitor before connecting.

10
Wall Mounting
Preparing to Install An Optional Wall Mounting Arm.
比例
2
4
3
3
4
1
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.
M=4.0Max
Dk=8.0 H=2.0 L=10+X
D3.86-3.96
M4-P0.7
100mm
M4
100mm
Specification of wall hanger screws: M4*(10+X)mm (X=Thickness of Wall mount bracket)
Note: VESA mounting screw holes are not available for all models, please check with the dealer or ofcial
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.

11
Adaptive-Sync function
1. Adaptive-Sync function works with DP/HDMI
2. Compatible Graphics Card: Recommended list is as below, also could be checked by visiting www.AMD.
com
Graphics Cards
• Radeon™ RX Vega series
• Radeon™ RX 500 series
• Radeon™ RX 400 series
• Radeon™ R9/R7 300 series （R9 370/X, R7 370/X, R7 265 except）
• Radeon™ Pro Duo (2016)
• Radeon™ R9 Nano series
• Radeon™ R9 Fury series
• Radeon™ R9/R7 200 series (R9 270/X, R9 280/X except)
Processors
• AMD Ryzen™ 7 2700U
• AMD Ryzen™ 5 2500U
• AMD Ryzen™ 5 2400G
• AMD Ryzen™ 3 2300U
• AMD Ryzen™ 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

12
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. 3840x2160 only suggest for Blu-ray Player, Xbox and PlayStation.
a. The display resolution is set to 1920*1080, and HDR is preset to ON.
b. After entering an application, the best HDR effect can be achieved when the resolution is changed to
1920*1080 (if available).
1920 x 1080
2560 x 1440

13
Adjusting
Hotkeys
14 235
1 Source/Exit
2Game Mode
3 Dial Point
4 Menu/Enter
5Power
Menu/Enter
Press to display the OSD or conrm the selection.
Power
Press the Power button to turn on the monitor.
Dial Point
When there is no OSD, press Dial Point button to show / hide Dial Point.
Game Mode
When there is no OSD, press “ ” key 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.
Source/Exit
When the OSD is closed, press Source/Exit button will be Source hot key function.
When the OSD menu is active, this button acts as an exit key (to exit the OSD menu).

14
OSD Setting
Basic and simple instruction on the control keys.
Luminance
Contrast 50
Brightness 80
Eco Mode Standard
Gamma Gamma1
DCR Off
HDR Mode Off
Color Setup Picture Boost OSD Setup ExitExtra
Game Setting
1). Press the MENU-button to activate the OSD window.
2). Press Left or Right to navigate through the functions. Once the desired function is highlighted, press
the MENU-button to activate it, press Left or Right to navigate through the sub-menu functions.
Once the desired function is highlighted, press MENU-button to activate it.
3). Press Left or to change the settings of the selected function. Press to exit. If you want to adjust any
other function, repeat steps 2-3.
4). OSD Lock Function: To lock the OSD, press and hold the MENU-button while the monitor is off and
then press power button to turn the monitor on. To unlock the OSD - press and hold the MENU-
button while the monitor is off and then press power button to turn the monitor on.
Notes:
1). If the product has only one signal input, the item of “Input Select” is unable to be adjusted.
2). If the input signal resolution is the native resolution or Adaptive-Sync, then the item “Image Ratio” is
invalid.
3). Eco Modes (except Standard mode), DCR, DCB mode and Picture Boost, for these four states that only one
state can exist.

15
Luminance
Luminance
Contrast 50
Brightness 80
Eco Mode Standard
Gamma Gamma1
DCR Off
HDR Mode Off
Color Setup Picture Boost OSD Setup ExitExtra
Game Setting
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 Disable dynamic contrast ratio.
On Enable dynamic contrast ratio.
HDR
Off
Set the HDR prole according to your usage
requirements.
Note:
When HDR is detected, the HDR option is
displayed for adjustment.
DisplayHDR
HDR Picture
HDR Movie
HDR Game
HDR Mode
Off Optimized for the color and contrast of the
picture, which will simulate showing the HDR
effect.
Note:
When HDR is not detected, the HDR Mode
option is displayed for adjustment.
HDR Picture
HDR Movie
HDR Game
Note:
1) When “HDR Mode” is set to “non-off”, the items “Contrast”, “Eco Mode”, “Gamma” cannot be adjusted.
2) When “HDR” is set to “non-off”, the items “Contrast”, “Brightness”, “Eco Mode”, “Gamma”, “DCR”cannot be
adjusted.
3)When the “Color Gamut” under “Color Setup” is set to sRGB, the items “Contrast”, “Eco Mode”, “Gamma”,
”HDR”and ”HDR Mode” cannot be adjusted.

16
Color Setup
Luminance
Red 50
Green 50
Blue 50LowBlue Mode Off
Color Temp. Warm
Color Gamut Panel Native
Color Setup
Picture Boost OSD Setup ExitExtra
Game Setting
DCB Demo Off
DCB Mode Off
Color Temp.
Warm Recall Warm Color Temperature from EEPROM.
Normal Recall Normal Color Temperature from EEPROM.
Cool Recall Cool Color Temperature from EEPROM.
User Restore Color Temperature from EEPROM.
Color Gamut Panel Native Standard color space panel.
sRGB sRGB Color space.
LowBlue
Mode
Reading
/ Ofce /
Internet /
Multimedia /
Off
Decrease blue light wave by controlling color
temperature.
Red 0-100 Red gain from Digital-register.
Green 0-100 Green gain from Digital-register.
Blue 0-100 Blue gain from Digital-register.
DCB Mode
Off Disable DCB Mode.
Full Enhance Enable Full Enhance Mode.
Nature Skin Enable Nature Skin Mode.
Green Field Enable Green Field Mode.
Sky-blue Enable Sky-blue Mode.
Auto Detect Enable AutoDetect Mode.
DCB Demo On or Off Disable or Enable Demo.
Note:
1) When “HDR Mode” or “HDR” under “Luminance” is set to “non-off”, all items under “Color Setup” cannot be
adjusted.
2) When the “Color Gamut” under “Color Setup” is set to sRGB , all items under “Color Setup” cannot be
adjusted.

17
Picture Boost
Luminance
Brightness 50
Contrast 50
H. Position 0
V. Position 0
Bright Frame Off
Frame Size 14
Picture Boost Color Setup
OSD Setup ExitExtra
Game Setting
Bright Frame On or Off Disable or Enable Bright Frame.
Frame Size 14-100 Adjust Frame Size.
Brightness 0-100 Adjust Frame Brightness.
Contrast 0-100 Adjust Frame Contrast.
H. position 0-100 Adjust Frame horizontal Position.
V. position 0-100 Adjust Frame vertical Position.
Note:
1) Adjust the brightness, contrast, and position of the Bright Frame for better viewing experience.
2) When “HDR Mode” or “HDR” under “Luminance” is set to “non-off”, all items under “Picture Boost” cannot be
adjusted.

18
OSD Setup
Exit
Luminance Color Setup
H. Position 50
V. Position 0
Transparence 25Language English
Timeout 10 Break Reminder Off
OSD Setup Picture Boost
DP Capability 1.2/1.4 Volume
Game Setting
50
Extra
Language Select the OSD language.
Timeout 5-120 Adjust the OSD Timeout.
DP Capability 1.1/1.2/1.4
If the DP video content supports DP1.2/1.4, please
select DP1.2/1.4 for DP Capability; otherwise, please
select DP1.1.
Please be noted that only DP1.2/1.4 support
Adaptive-Sync function.
H. Position 0-100 Adjust the horizontal position of OSD.
V. Position 0-100 Adjust the vertical position of OSD.
Volume 0-100 Volume Adjustment.
Transparence 0-100 Adjust the transparence of OSD.
Break
Reminder On or Off Break reminder if the user continuously works for more than 1hrs.