1. Introduction
This manual provides essential instructions for the proper setup, operation, maintenance, and troubleshooting of your KOORUI 22 Inch Full HD 120Hz Computer Monitor, model E2212H. Please read this manual thoroughly before using the product to ensure optimal performance and safety.
2. Safety Information
Observe the following safety precautions to prevent damage to the monitor and ensure user safety:
- Do not expose the monitor to rain or moisture to avoid fire or electric shock hazards.
- Do not open the monitor casing. There are no user-serviceable parts inside. Refer all servicing to qualified service personnel.
- Place the monitor on a stable, flat surface to prevent it from falling.
- Ensure proper ventilation around the monitor. Do not block ventilation openings.
- Use only the power adapter supplied with the monitor.
- Disconnect the power cable from the wall outlet if the monitor will not be used for an extended period.
3. Package Contents
Verify that all items are present in the package:
- KOORUI 22 Inch Monitor (E2212H)
- Monitor Stand (Column and Bottom Base)
- Power Cord
- Power Adapter
- HDMI 1.4 Cable
- User Manual
Image: Contents of the KOORUI monitor package, illustrating the monitor, stand components, power cord, adapter, HDMI cable, and user manual.
4. Setup
4.1. Assembling the Stand
The monitor features a tool-free installation process for the stand. Follow these steps:
- Attach the column to the bottom base.
- Secure the assembled stand to the back of the monitor until it clicks into place.
4.2. Connecting the Monitor
The monitor is equipped with HDMI, VGA, and audio output ports for versatile connectivity. Ensure all connections are secure.
- Power Connection: Connect the power adapter to the monitor's DC input port, then plug the power cord into a wall outlet.
- Video Connection:
- For digital video, connect one end of the provided HDMI 1.4 cable to the monitor's HDMI port and the other end to your computer's HDMI output.
- For analog video, connect a VGA cable (not included) to the monitor's VGA port and your computer's VGA output.
- Audio Connection: If desired, connect external speakers or headphones to the monitor's audio output port.
Note: For devices with USB-C / Thunderbolt ports (e.g., MacBook, iMac), a USB-C to HDMI adapter is required and not included.
Image: Rear view of the monitor highlighting the HDMI, VGA (D-Sub), Audio, and DC power input ports, and the 100x100mm VESA mounting points.
5. Operating the Monitor
5.1. Power On/Off
Press the power button, typically located on the underside of the monitor, to turn the display on or off.
5.2. Navigating the On-Screen Display (OSD) Menu
The OSD menu allows you to adjust various display settings. The control buttons are located on the underside of the monitor. Refer to the on-screen prompts for navigation.
5.3. Display Settings
Adjust the following settings via the OSD menu for optimal viewing:
- Brightness: Adjust the overall luminance of the screen. The monitor has a typical brightness of 250 cd/m².
- Contrast: Modify the difference between the brightest and darkest areas of the image. The monitor features a 3000:1 contrast ratio.
- Color Settings: Fine-tune color temperature, hue, and saturation. The monitor offers 99% sRGB color gamut.
- Input Source: Manually select between HDMI and VGA input sources.
Image: Visual comparison demonstrating the clarity of Full HD (1920x1080) resolution.
Image: The monitor displaying vivid colors, emphasizing 99% sRGB color coverage.
Image: A city scene on the monitor, illustrating brilliant brightness and deep black levels.
5.4. Refresh Rate and Adaptive Sync
The monitor supports a 120Hz refresh rate for smoother visuals and Adaptive Sync (FreeSync) technology to reduce screen tearing and stuttering.
- Refresh Rate: The 120Hz refresh rate provides a fluid visual experience, especially beneficial for fast-moving content.
- Adaptive Sync: Enable Adaptive Sync in the monitor's OSD menu and ensure your graphics card supports FreeSync for a tear-free and smoother gaming experience.
Image: Comparison illustrating sharper text and clearer motion at 120Hz versus 75Hz.
Image: Adaptive Sync ON/OFF comparison, demonstrating how Adaptive Sync eliminates screen tearing and stuttering for smoother visuals.
5.5. Eye Care Features
The monitor is TÜV Rheinland certified for eye-care excellence, incorporating features to reduce eye strain during extended use.
- Blue Light Filtering: Reduces harmful blue light emissions. Activate this feature in the OSD menu.
- Flicker-Free Technology: Eliminates screen flickering, which can cause eye fatigue and dryness. This feature is always active.
Image: Comparison of Eyecare mode OFF and ON, demonstrating the reduction of blue light for eye comfort.
5.6. Ergonomic Adjustability
The monitor stand allows for tilt adjustment to achieve a comfortable viewing angle.
- Tilt Adjustment: The screen can be tilted from -5° to 15°. Gently adjust the top or bottom edge of the monitor to your preferred angle.
- VESA Mounting: The monitor supports VESA 100x100mm mounting, allowing for alternative mounting solutions (e.g., wall mount, monitor arm) not included with the product.
Image: Monitor flexibility, showing tilt adjustment range and VESA mount compatibility.
6. Maintenance
To maintain the monitor's performance and appearance, follow these cleaning guidelines:
- Always power off the monitor and unplug the power cord before cleaning.
- Use a soft, lint-free cloth slightly dampened with water or a mild, non-abrasive screen cleaner.
- Do not spray cleaning solutions directly onto the screen or casing.
- Avoid using harsh chemicals, abrasive pads, or solvents (e.g., alcohol, ammonia, benzene) as they can damage the screen surface or casing.
- Wipe the screen gently to remove dust and smudges.
7. Troubleshooting
If you encounter issues with your monitor, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| No image on screen | Power cable disconnected; Video cable disconnected or loose; Incorrect input source selected. | Ensure power cable is securely connected. Check video cable (HDMI/VGA) connections. Select the correct input source via the OSD menu. |
| Image is blurry or distorted | Incorrect resolution setting; Faulty video cable; Graphics card driver issue. | Set display resolution to 1920 x 1080. Try a different video cable. Update graphics card drivers. |
| Screen flickering | Flicker-Free technology is built-in, but external interference or faulty cable can cause issues. | Ensure video cable is secure. Test with a different cable. Check for strong electromagnetic interference sources nearby. |
| Monitor wobbles on stand | Stand not fully secured; Unstable desk surface. | Ensure the stand is correctly assembled and firmly attached to the monitor. Place the monitor on a stable, level surface. |
| No audio from monitor's audio out | External speakers/headphones not connected; Volume too low; Audio output not selected on PC. | Ensure external audio device is connected and powered. Adjust volume. Select monitor as audio output device in PC settings. |
8. Specifications
Detailed technical specifications for the KOORUI E2212H monitor:
| Feature | Detail |
|---|---|
| Model Number | E2212H |
| Screen Size | 22 inches (21.45" measured diagonally) |
| Resolution | FHD 1920 x 1080 pixels |
| Aspect Ratio | 16:9 |
| Refresh Rate | 120 Hz |
| Display Technology | VA Panel, LCD |
| Contrast Ratio | 3000:1 |
| Brightness | 250 candela/square meter |
| Color Gamut | 99% sRGB |
| Viewing Angle | 178 degrees |
| Screen Surface | Matte |
| Connectivity | 1x HDMI 1.4, 1x VGA (D-Sub), 1x 3.5mm Audio Out |
| Adaptive Sync | FreeSync |
| Eye Care Features | Blue Light Filter, Flicker-Free |
| Adjustability | Tilt (-5° to 15°) |
| VESA Compatibility | 100 x 100 mm |
| Product Dimensions (D x W x H) | 18.5D x 49.5W x 38.8H centimetres |
| Weight | 3.02 kg |
| Color | Black |
| Country of Origin | China |
Image: Summary of key monitor specifications.
9. Warranty Information
Your KOORUI E2212H monitor comes with a manufacturer's warranty:
- Monitor Warranty: 1 Year Limited Manufacturer Warranty
- Accessories Warranty: 3 Years Limited Warranty
Please retain your proof of purchase for warranty claims. The warranty covers defects in materials and workmanship under normal use.
10. Customer Support
For technical assistance, warranty inquiries, or other support needs, please contact KOORUI customer service:
- Email: NA.support@koorui.net
When contacting support, please provide your monitor's model number (E2212H) and a detailed description of the issue.