Introduction
This manual provides essential information for the setup, operation, maintenance, and troubleshooting of your Onn 22 inch 1080P 100 Hz FHD LED Monitor. Please read this guide thoroughly before using the product to ensure optimal performance and safety.
The Onn 22 inch FHD LED Monitor is designed for a variety of applications, offering a vivid 1920x1080 resolution, a 100Hz refresh rate, and a 6.5ms response time for efficient performance. Its slim profile and T-shaped base are ideal for saving desk space.

The image shows the Onn 22 inch FHD LED Monitor, highlighting its 100Hz refresh rate and 1080p resolution. The monitor features a slim design and a T-shaped base.
Setup Instructions
- Unpacking: Carefully remove the monitor and all accessories from the packaging. Ensure all components are present: monitor, T-shaped base, HDMI cable, and power adapter.
- Assembling the Stand: Attach the T-shaped base to the monitor. The design is screw-less for easy assembly. Ensure it is securely fastened.
- Connecting to a Device:
The monitor supports both HDMI and VGA inputs. Connect the provided HDMI cable from your computer's HDMI output to the HDMI IN port on the monitor. Alternatively, use a VGA cable for VGA input.

This image displays the rear panel of the Onn monitor, illustrating the available input ports: HDMI IN, VGA IN, and the DC 12V power input. These ports are essential for connecting the monitor to a computer or other devices.
- Power Connection: Connect the power adapter to the DC 12V input port on the monitor, then plug the adapter into a power outlet.
- Adjusting the Monitor: The monitor is capable of swivel, tilt, rotation, and height adjustment. Adjust the screen to your preferred viewing angle for ergonomic comfort.
- Dual Monitor Setup: This monitor is suitable for a fully functioning dual monitor setup. Connect a second monitor using the appropriate cables and configure your operating system's display settings.
Operating Instructions
- Power On/Off: Press the power button, usually located on the bottom or back of the monitor, to turn it on or off.
- Input Selection: If the monitor does not automatically detect the input source, use the On-Screen Display (OSD) menu buttons to manually select between HDMI and VGA inputs.
- OSD Menu Navigation: Use the physical buttons on the monitor (typically on the back or bottom edge) to navigate the OSD menu. This allows you to adjust settings such as brightness, contrast, color temperature, and input source.
- Resolution and Refresh Rate: The monitor supports a native resolution of 1920x1080 at a 100Hz refresh rate. Ensure your computer's display settings are configured to these specifications for the best visual experience.
- Adaptive Sync: The monitor features Adaptive Sync for gaming, which helps to reduce screen tearing and stuttering. Ensure this feature is enabled in your graphics card settings if supported.
Maintenance
- Cleaning the Screen: Gently wipe the screen with a soft, lint-free cloth. For stubborn marks, lightly dampen the cloth with water or a non-abrasive, monitor-specific cleaning solution. Avoid spraying liquids directly onto the screen.
- Cleaning the Casing: Use a soft, dry cloth to clean the monitor casing. Do not use strong detergents or solvents, as they may damage the finish.
- Ventilation: Ensure the monitor's ventilation openings are not blocked to prevent overheating.
- Storage: When not in use for extended periods, store the monitor in a cool, dry place, away from direct sunlight and extreme temperatures.
Troubleshooting
- No Power:
- Check if the power cable is securely connected to both the monitor and the power outlet.
- Verify that the power outlet is functioning correctly.
- No Signal:
- Ensure the video cable (HDMI or VGA) is firmly connected to both the monitor and the computer.
- Select the correct input source using the monitor's OSD menu.
- Check if your computer is powered on and not in sleep mode.
- Flickering Screen or Poor Image Quality:
- Check the video cable for damage or loose connections.
- Adjust the resolution and refresh rate settings on your computer to match the monitor's specifications (1920x1080, 100Hz).
- Reset monitor settings to factory defaults via the OSD menu.
- Buttons Not Responding:
- Unplug the monitor from the power outlet, wait for 30 seconds, and then plug it back in.
If problems persist, please refer to the support information provided in the "Support and Warranty" section.
Specifications
| Brand | Onn |
| Model Number | 100140681 |
| Model Name | OTTO |
| Screen Size | 21.5 Inches |
| Display Type | LED, LCD |
| Resolution | 1920 x 1080 (FHD 1080p) |
| Refresh Rate | 100 Hz |
| Response Time | 6.5 Milliseconds |
| Hardware Interface | HDMI, VGA |
| Special Features | Height Adjustment |
| Viewing Angle | 160 Degrees |
| Aspect Ratio | 16:9 |
| Product Dimensions | 49.2 x 20 x 37.2 cm; 3.24 kg |
Support and Warranty
For technical support, product inquiries, or warranty information, please visit the official Onn support website or contact their customer service.
- Official Support Website: onnsupport.ca
- Warranty: Specific warranty details may vary by region and purchase date. Please refer to the documentation included with your product or visit the support website for the most current warranty information.





