1. Setup and Installation
This section provides instructions for safely installing the replacement main board into your Samsung S22F350FHU or S22F350 monitor. Professional installation is recommended due to the delicate nature of electronic components.
1.1 Safety Precautions
- Always disconnect the monitor from the power source before beginning any installation or repair work.
- Wear an anti-static wrist strap to prevent electrostatic discharge (ESD) damage to sensitive electronic components.
- Work in a clean, well-lit, and static-free environment.
- Use appropriate tools and avoid excessive force.
1.2 Tools Required
- Phillips head screwdriver
- Flathead screwdriver (optional, for prying plastic covers)
- Anti-static wrist strap
- Plastic prying tools (optional, for opening monitor casing)
1.3 Installation Steps
- Prepare the Monitor: Place the monitor face down on a soft, clean surface to prevent scratching the screen.
- Remove the Back Cover: Carefully remove the screws securing the monitor's back cover. Use plastic prying tools to gently separate the plastic clips around the edges.
- Locate the Old Main Board: Identify the existing main board inside the monitor. It is typically the largest circuit board and connects to various components like the display panel, power supply, and input ports.
- Disconnect Cables: Carefully disconnect all cables connected to the old main board. This includes power cables, LVDS (Low-Voltage Differential Signaling) cables to the display panel, input port cables (HDMI, VGA), and cables to the control buttons. Note the orientation and connection points of each cable, perhaps by taking photos.
- Remove the Old Main Board: Unscrew the old main board from the monitor chassis.
- Install the New Main Board: Position the new main board in the chassis, aligning it with the screw holes. Secure it with the screws removed earlier.
- Connect Cables: Reconnect all cables to the new main board. Ensure each cable is securely seated in its correct connector. Refer to your photos if necessary.
- Test Functionality (Optional): Before fully reassembling, you may connect the monitor to a power source and a video input to perform a preliminary test. If the monitor powers on and displays an image, proceed to the next step.
- Reattach the Back Cover: Carefully reattach the monitor's back cover, ensuring all clips snap into place and screws are tightened.


2. Operating Instructions
The main board is an internal component responsible for processing video signals, managing power distribution, and controlling monitor functions. Its operation is integrated into the overall functionality of the monitor.
- Once correctly installed, the monitor should power on and function as expected, allowing you to select input sources (HDMI, VGA), adjust display settings, and control volume (if applicable).
- Ensure your video source (computer, console, etc.) is properly connected to the monitor's input ports.
- Use the monitor's built-in controls to navigate menus and adjust settings.
3. Maintenance
Proper maintenance helps extend the lifespan of your monitor and its internal components, including the main board.
- Cleaning: Keep the monitor's exterior clean and free of dust. Use a soft, dry cloth. Avoid spraying liquids directly onto the screen or casing.
- Ventilation: Ensure the monitor's ventilation openings are not blocked to allow for proper airflow and heat dissipation.
- Environmental Conditions: Operate the monitor within recommended temperature and humidity ranges. Avoid extreme conditions.
- Physical Handling: Handle the monitor with care to prevent physical shocks or impacts that could damage internal components.
4. Troubleshooting
If you encounter issues after installing the main board, refer to the following troubleshooting steps:
4.1 Common Issues and Solutions
| Problem | Possible Cause | Solution |
|---|---|---|
| Monitor does not power on | Loose power cable, faulty power supply, incorrect main board installation. | Check power cable connection. Verify internal power supply connections. Re-check main board installation and cable connections. |
| No display / Black screen | Loose video cable, incorrect input source, faulty display panel connection. | Ensure video cable (HDMI/VGA) is securely connected. Select correct input source on monitor. Verify LVDS cable connection to the display panel. |
| Incorrect display (colors, resolution) | Video source settings, cable issue, main board configuration. | Check display settings on your computer/source. Try a different video cable. Ensure main board is compatible with your monitor model. |
| Monitor buttons unresponsive | Loose control panel cable. | Check the ribbon cable connection from the control button board to the main board. |
If issues persist after following these steps, contact the seller for further assistance.
5. Specifications
| Feature | Detail |
|---|---|
| Brand | Samsung (for compatible monitor) |
| Model Numbers | BN41-02503B, BN41-02503, BN94-10635J, BN94-10524U, BN94-11082F, S22F350FHU |
| Compatible Monitor Models | Samsung S22F350FHU, Samsung S22F350 |
| Package | Yes |
| Origin | Mainland China |
| Certification | CE |
| Board Dimensions | Approx. 96mm x 109mm (based on board markings) |

6. Warranty and Support
For any product-related inquiries, technical support, or assistance with potential issues, please contact the seller directly. They can provide specific guidance and support for your purchase.
The seller offers service commitments including fast delivery and potential refunds for issues such as delays, lost packages, or damaged items. Additionally, free returns may be available within 90 days of purchase. Please refer to your purchase details for specific terms and conditions.
7. User Tips
- Verify Compatibility: Always double-check that the main board model number precisely matches the original board in your monitor or is listed as a compatible replacement for your specific monitor model.
- Handle with Care: Electronic components are fragile. Avoid touching the gold contacts or integrated circuits directly.
- Document Disassembly: Take photos or videos during the disassembly process to aid in reassembly, especially for cable connections.
- Test Before Final Assembly: Perform a quick functional test after installing the board and connecting essential cables but before fully closing the monitor casing. This can save time if adjustments are needed.





