AOC C24G2/C24G2U LCD Monitor User Manual
This document provides comprehensive instructions for the AOC C24G2 and C24G2U LCD Monitors.
Safety Information
National Conventions
This section describes the notational conventions used throughout this document.
Notes, Cautions, and Warnings
Throughout this guide, text blocks may be accompanied by an icon and printed in bold or italic type. These are used as follows:
- NOTE: Indicates important information for better system utilization.
- CAUTION: Indicates potential damage to hardware or loss of data, with instructions on how to avoid the problem.
- WARNING: Indicates potential for bodily harm and provides instructions on how to avoid the problem. Some warnings may appear in alternate formats without icons.
Power
Operate the monitor only from the indicated power source. Consult your dealer or local power company if unsure about your home's power supply. The monitor features a three-pronged grounded plug for safety. If your outlet does not accommodate this, have an electrician install the correct outlet or use a grounding adapter. Do not bypass the grounding feature. Unplug the unit during lightning storms or extended periods of non-use to protect against power surges. Avoid overloading power strips and extension cords. Ensure satisfactory operation by using the monitor only with UL-listed computers configured for 100-240V AC, Min. 5A. The wall socket should be near the equipment and easily accessible.
Installation
Do not place the monitor on unstable surfaces. Use only manufacturer-recommended carts, stands, tripods, brackets, or tables. Follow manufacturer's instructions and use recommended mounting accessories. Move product and cart combinations with care. Never insert objects into monitor cabinet slots, as this could damage components, causing fire or electric shock. Avoid spilling liquids on the monitor. Do not place the front of the product on the floor. If wall-mounting, use an approved mounting kit and follow its instructions. Ensure adequate space around the monitor for proper air circulation to prevent overheating. Recommended ventilation areas are shown in the diagram.
Installed with stand
Diagram showing recommended ventilation space around the monitor when installed on a stand, with dimensions indicated (e.g., 12 inches/30cm above, 4 inches/10cm on sides).
Cleaning
Clean the cabinet regularly with a soft cloth. Mild detergent can be used for stains, but avoid strong detergents. Ensure no detergent leaks into the product. Use a soft cleaning cloth to prevent scratching the screen. Disconnect the power cord before cleaning.
Diagram illustrating cleaning: spraying water on a cloth, a monitor plugged in with a crossed-out power symbol, and a hand wiping the screen.
Other Precautions
If the product emits strange smells, sounds, or smoke, immediately disconnect the power plug and contact a Service Center. Ensure ventilating openings are not blocked. Avoid severe vibration or high impact conditions during operation. Do not knock or drop the monitor during operation or transportation.
Setup
Contents in Box
The box typically contains the following items:
- LCD Manual
- Warranty Card
- Stand
- Base
- Power Cable
- DP Cable
- HDMI Cable
- VGA Cable
Note: Not all signal cables (DP, HDMI, VGA) are provided in all countries and regions. Please check with your local dealer.
Setup Stand & Base
Instructions for setting up and removing the stand and base, with accompanying diagrams.
Adjusting Viewing Angle
For optimal viewing, position the monitor so you are looking at the full face. Adjust the angle to your preference. Hold the stand to prevent toppling the monitor while adjusting. Do not touch the LCD screen during angle adjustment to prevent damage.
Diagrams showing the monitor's adjustable viewing angle.
Connecting the Monitor
Diagrams illustrating cable connections at the back of the C24G2 and C24G2U models, labeling ports such as HDMI, DP, D-SUB, Line in, Earphone, Power, and USB ports.
Connect to PC
- Connect the power cord to the display.
- Turn off and unplug your computer.
- Connect the display signal cable to the computer's video connector.
- Plug the power cords of the computer and display into a nearby outlet.
- Turn on your computer and display.
If the monitor displays an image, installation is complete. If not, refer to Troubleshooting. Always turn off the PC and LCD monitor before connecting cables.
Wall Mounting
This monitor can be attached to an optional wall mounting arm. Disconnect power before proceeding. Follow these steps:
- Remove the base.
- Assemble the wall mounting arm according to the manufacturer's instructions.
- Attach the arm to the back of the monitor, aligning the holes.
- Reconnect the cables. Refer to the wall mounting arm's manual for wall attachment instructions.
Note: VESA mounting screw holes may not be available for all models. Check with your dealer.
Diagram showing the process of removing the stand for wall mounting.
Adaptive-Sync Function
The Adaptive-Sync function works with DP/HDMI connections. Compatible graphics cards include AMD Radeon RX Vega series, RX 500 series, RX 400 series, R9/R7 300 series (excluding specific models), Radeon Pro Duo (2016), R9 Nano series, R9 Fury series, and R9/R7 200 series (excluding specific models). Refer to www.AMD.com for a complete list.
Adjusting
Hotkeys
Diagram showing the monitor's control buttons with labels.
| Button | Function |
| 1 | Source/Auto/Exit |
| 2 | Game Mode/< |
| 3 | Dial Point/> |
| 4 | Menu/Enter |
| 5 | Power |
Power: Press to turn the monitor on.
Menu/Enter: Press to display the OSD or confirm a selection. Press and hold for 2 seconds to turn off the monitor.
Game Mode/<: Press '<' to open the game mode function, then use '<' or '>' to select a game mode (FPS, RTS, Racing, Gamer 1-3) based on game type.
Dial Point/>: Press to show/hide the Dial Point.
Source/Auto/Exit: Acts as a Source hotkey when the OSD is closed. Press and hold for 2 seconds to perform auto-configuration (for D-Sub models only).
OSD Setting
Basic instructions for using the control keys to navigate the On-Screen Display (OSD).
Diagram showing the OSD interface with various settings.
- Press the MENU button to activate the OSD.
- Use '<' or '>' to navigate functions. Press MENU to activate a function, then use '<' or '>' to navigate sub-menu functions. Press MENU again to activate.
- Use '<' or '>' to change settings. Press AUTO to exit. Repeat steps 2-3 for other functions.
- OSD Lock: To lock, press and hold MENU while the monitor is off, then turn it on. To unlock, repeat the process.
Notes:
- 'Input Select' is disabled if only one signal input is available.
- Only one of DCR, Color Boost, or Picture Boost can be active at a time.
Luminance
Table detailing Luminance settings:
| Setting | Range | Description |
| Contrast | 0-100 | Contrast from Digital-register. |
| Brightness | 0-100 | Backlight Adjustment. |
| Eco mode | Standard, Text, Internet, Game, Movie, Sports, Reading | Selectable modes for different usage scenarios. |
| Gamma | Gamma1, Gamma2, Gamma3 | Adjust to Gamma 1, 2, or 3. |
| DCR | Off, On | Enable or disable dynamic contrast ratio. |
| HDR Mode | OFF, HDR Picture, HDR Movie, HDR Game | Adjust HDR Mode. |
Note: When 'HDR Mode' is set to non-off, 'Contrast', 'Brightness', and 'Gamma' cannot be adjusted.
Image Setup
Table detailing Image Setup settings:
| Setting | Range | Description |
| Clock | 0-100 | Adjust picture Clock to reduce Vertical-Line noise. |
| Phase | 0-100 | Adjust Picture Phase to reduce Horizontal-Line noise. |
| Sharpness | 0-100 | Adjust picture sharpness. |
| H. Position | 0-100 | Adjust the horizontal position of the picture. |
| V. Position | 0-100 | Adjust the vertical position of the picture. |
Color Setup
Table detailing Color Setup settings:
| Setting | Options | Description |
| Color Temp. | Warm, Normal, Cool, sRGB, User | Recall specific color temperature settings. |
| DCB Mode | Full Enhance, Nature Skin, Green Field, Sky-blue, AutoDetect, Off | Enable or disable various enhancement modes. |
| DCB Demo | On or Off | Enable or disable DCB Demo mode. |
| Red | 0-100 | Red gain adjustment. |
| Green | 0-100 | Green gain adjustment. |
| Blue | 0-100 | Blue gain adjustment. |
Note: When 'HDR Mode' is set to non-off, all items under 'Color Setup' cannot be adjusted.
Picture Boost
Table detailing Picture Boost settings:
| Setting | Options | Description |
| Bright Frame | on or off | Enable or disable 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: Adjust Bright Frame settings for a better viewing experience. When 'HDR Mode' is set to non-off, all items under 'Picture Boost' cannot be adjusted.
OSD Setup
Table detailing OSD Setup settings:
| Setting | Range | Description |
| Language | Select OSD language | |
| Timeout | 5-120 | Adjust OSD Timeout duration. |
| DP Capability | 1.1/1.2 | DP1.2 supports Adaptive-Sync. |
| H. Position | 0-100 | Adjust horizontal OSD position. |
| V. Position | 0-100 | Adjust vertical OSD position. |
| Volume | 0-100 | Volume Adjustment. |
| Transparence | 0-100 | Adjust OSD transparency. |
| Break Reminder | on or off | Reminder for continuous work over 1 hour. |
| USB (C24G2U) | on or off | Enable or disable USB functionality. |
Note: Select DP1.2 for DP Capability if the DP video content supports it; otherwise, select DP1.1.
Game Setting
Table detailing Game Setting options:
| Setting | Options | Description |
| Game Mode | FPS, RTS, Racing, Gamer 1-3, Off | Optimized settings for different game genres. |
| Shadow Control | 0-100 | Adjust dark theme black level details for clearer pictures. |
| Overdrive | Weak, Medium, Strong, Boost, Off | Adjust the response time. |
| Game Color | 0-20 | Adjust saturation for better picture quality. |
| LowBlue Mode | Reading, Office, Internet, Multimedia, Off | Decrease blue light by controlling color temperature. |
| MBR | 0-20 | Adjust Motion Blur Reduction. |
| Adaptive-Sync | On/Off | Adjust Adaptive-Sync. |
| Frame Counter | Off, Right-up, Right-Down, Left-Down, Left-Up | Display V frequency on the selected corner. |
Note: MBR and Overdrive Boost are available only when Adaptive-Sync is off and vertical frequency is up to 75 Hz. When 'HDR Mode' is set to non-off, 'Game Mode', 'Shadow Control', 'Game Color', and 'Low Blue Mode' cannot be adjusted.
Extra
Table detailing Extra settings:
| Setting | Options | Description |
| Input Select | Select Input Signal Source | |
| Auto Config. | yes or no | Auto adjust the picture to default. |
| Off timer | 0-24hrs | Select DC off time. |
| Image Ratio | Wide, 4:3 | Select image ratio for display. |
| DDC/CI | yes or no | Turn ON/OFF DDC/CI Support. |
| Reset | yes or no, ENERGY STAR® or no | Reset the menu to default. ENERGY STAR® is available for selective models. |
Exit
Exit the main OSD menu.
LED Indicator
Table showing LED status:
| Status | LED Color |
| Full Power Mode | White |
| Active-off Mode | Orange |
Troubleshooting
| Problem & Question | Possible Solutions |
| Power LED Is Not ON | Ensure the power button is ON and the Power Cord is properly connected to a grounded power outlet and the monitor. |
| No images on the screen |
|
| Picture Is Fuzzy & Has Ghosting Shadowing Problem | Adjust Contrast and Brightness. Press 'Auto' for auto-adjustment. Ensure the monitor is plugged directly into the video card output; avoid extension cables or switch boxes. |
| Picture Bounces, Flickers Or Wave Pattern Appears | Move electrical devices causing interference away from the monitor. Use the maximum refresh rate supported by the monitor at the current resolution. |
| Monitor Is Stuck In Active Off Mode | Ensure the Computer Power Switch is ON. Check that the Computer Video Card is securely fitted. Verify the monitor's video cable connection. Inspect the video cable for bent pins. Check computer operability by toggling the CAPS LOCK key. |
| Missing one of the primary colors (RED, GREEN, or BLUE) | Inspect the monitor's video cable for damaged pins and ensure proper connection to the computer. |
| Screen image is not centered or sized properly | Adjust H-Position and V-Position, or use the 'AUTO' hotkey. |
| Picture has color defects (white does not look white) | Adjust RGB color or select the desired color temperature. |
| Horizontal or vertical disturbances on the screen | Use Windows shutdown mode to adjust CLOCK and FOCUS. Press 'Auto' for auto-adjustment. |
| Regulation & Service | Refer to Regulation & Service Information on the CD manual or at www.aoc.com. |
Specification
General Specification
| Panel | Model name | C24G2/C24G2U |
| Driving system | TFT Color LCD | |
| Viewable Image Size | 59.8 cm diagonal | |
| Pixel pitch | 0.27156 mm (H) x 0.27156 mm (V) | |
| Video | R, G, B Interface & HDMI Interface & DP Interface | |
| Separate Sync. | H/V TTL | |
| Display Color | 16.7 M Colors | |
| Others | Horizontal scan range | 30k-160kHz (D-SUB/HDMI) 30k-200kHz (DP) |
| Horizontal scan Size (Maximum) | 521.395 mm | |
| Vertical scan range | 48-144Hz (D-SUB/HDMI) 48-165Hz (DP) | |
| Vertical Scan Size (Maximum) | 293.285 mm | |
| Optimal preset resolution | 1920x1080@60Hz | |
| Max resolution | 1920x1080@60Hz (D-SUB) 1920x1080@144Hz (HDMI) 1920x1080@165Hz (DP) | |
| Plug & Play | VESA DDC2B/CI | |
| Input Connector | HDMIx2/DP/VGA/USB | |
| Input Video Signal | Analog: 0.7Vp-p (standard), 75 OHM, TMDS | |
| Output Connector | Earphone out | |
| Power Source | 100-240V, 50/60Hz, 1.5A | |
| Power Consumption (Typical) | 21W (C24G2) / 27W (C24G2U) (default brightness and contrast) | |
| Power Consumption (Max.) | ≤ 29 W (C24G2) / 72 W (C24G2U) (brightness=100, contrast=100) | |
| Power Consumption (Power saving) | ≤ 0.3 W | |
| Physical Characteristics | Connector Type | VGA/HDMI/DP/USB/Earphone out |
| Signal Cable Type | Detachable | |
| Environmental | Temperature (Operating) | 0° ~ 40° |
| Temperature (Non-Operating) | -25° ~ 55° | |
| Humidity (Operating) | 10% ~ 85% (non-condensing) | |
| Humidity (Non-Operating) | 5% ~ 93% (non-condensing) | |
| Altitude (Operating) | 0 ~ 5000 m (0 ~ 16404 ft) | |
| Altitude (Non-Operating) | 0 ~ 12192 m (0 ~ 40000 ft) |
Preset Display Modes
Table listing various preset display modes with their resolutions, horizontal frequencies, and vertical frequencies.
| STANDARD | RESOLUTION | HORIZONTAL FREQUENCY(kHz) | VERTICAL FREQUENCY(Hz) | |
| VGA | 640x480@60Hz | 31.469 | 59.94 | |
| VGA | 640x480@72Hz | 37.861 | 72.809 | |
| VGA | 640x480@75Hz | 37.5 | 75 | |
| VGA | 640x480@100Hz | 50.313 | 99.826 | |
| VGA | 640x480@120Hz | 60.938 | 119.72 | |
| 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 | 62.76 | 99.778 | |
| SVGA | 800x600@120Hz | 76.302 | 119.972 | |
| XGA | 1024x768@60Hz | 48.363 | 60.004 | |
| XGA | 1024x768@70Hz | 56.476 | 70.069 | |
| XGA | 1024x768@75Hz | 60.023 | 75.029 | |
| XGA | 1024x768@100Hz | 80.448 | 99.811 | |
| XGA | 1024x768@120Hz | 97.551 | 119.989 | |
| SXGA | 1280x1024@60Hz | 63.981 | 60.02 | |
| SXGA | 1280x1024@75Hz | 79.976 | 75.025 | |
| WXGA+ | 1440x900@60Hz | 55.935 | 59.887 | |
| WXGA+ | 1440x900@60Hz | 55.469 | 59.901 | |
| WSXGA | 1680x1050@60Hz | 65.29 | 59.954 | |
| WSXGA | 1680x1050@60Hz | 64.674 | 59.883 | |
| FHD | 1920x1080@60Hz | 67.5 | 60 | |
| FHD(HDMI) | 1920x1080@100Hz | 113.221 | 99.93 | |
| FHD(HDMI/DP) | 1920x1080@120Hz | 137.26 | 119.982 | |
| FHD(HDMI/DP) | 1920x1080@144Hz | 158.113 | 144.001 | |
| FHD(DP) | 1920x1080@165Hz | 183.154 | 165.003 | |
| IBM MODES | DOS | 640x350@70Hz | 31.469 | 70.087 |
| DOS | 720x400@70Hz | 31.469 | 70.087 | |
| MAC MODES | VGA | 640x480@67Hz | 35 | 66.667 |
| SVGA | 832x624@75Hz | 49.725 | 74.551 | |
| XGA | 1024x768@75Hz | 60.241 | 74.927 |
Pin Assignments
Diagrams illustrating pin assignments for various display signal cables.
19-Pin Color Display Signal Cable (HDMI)
| 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 1 Shield | 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 (DisplayPort)
| 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 |
15-Pin Color Display Signal Cable (VGA)
| Pin No. | Signal Name | Pin No. | Signal Name |
| 1 | Video-Red | 9 | +5 V |
| 2 | Video-Green | 10 | Ground |
| 3 | Video-Blue | 11 | N.C. |
| 4 | N.C. | 12 | DDC-Serial data |
| 5 | Detect Cable | 13 | H-sync |
| 6 | GND-R | 14 | V-sync |
| 7 | GND-G | 15 | DDC-Serial clock |
| 8 | GND-B |
Plug and Play
Plug & Play DDC2B Feature
This monitor supports VESA DDC2B, allowing it to communicate its identity and display capabilities to the host system. DDC2B is a bi-directional data channel based on the I2C protocol, used for requesting EDID information.
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