Brand:
LG
Category: Monitor
Document Type: Manual
Language: EN
Manual for LG MAGNIT All-in-One (LED SCREEN)
Uploaded: Nov. 21, 2025, 8:49 p.m.
Warranty Information
Warranty does not cover damage caused by unauthorized components or use in excessively dusty environments.
- Safety Precautions: Read and follow all safety warnings and cautions to prevent danger or harm. Pay close attention to precautions for AC cable, power, moving, installation, cleaning, and general product use.
- Assembly and Preparation: Identify optional accessories, handle the LED package screen carefully, and follow installation guidelines.
- Installation: Ensure proper installation environment (temperature, direct sunlight, position) and location (recessed wall, on a wall) to prevent damage and ensure optimal performance.
- Buttons and Remote Control: Familiarize yourself with the buttons on the product and the remote control for operation, menu navigation, and settings adjustment. Learn how to register and unregister the Magic Remote.
- Troubleshooting: Refer to the troubleshooting section for common issues such as "No image is displayed," "Unknown Product" message, abnormal screen images, display color issues, and operation problems.
- Product Specifications: Review detailed specifications including pixel pitch, resolution, dimensions, power rating, and environmental conditions.
Troubleshooting and error codes
| Problem | Possible Cause | Solution |
|---|---|---|
| No image is displayed. | Is the power cord connected to the product? | Check if the power cord is correctly plugged into the power outlet. |
| Is the 'No Signal' message displayed? | Check the connection status of the HDMI or DP cable. Access the Input menu to check the input source. | |
| The 'Unknown Product' message appears when the product is connected. | Did you install the driver? | Check if the Plug and Play function is supported by referring to the graphics card user manual. |
| The screen image looks abnormal. | Is the screen position wrong? | Check if the graphics card resolution and frequency are supported by the product. If the frequency is out of range, set to the recommended resolution in the “Display” settings in Control Panel. |
| The screen is displayed abnormally. | The proper input source is not connected to the port. Connect a cable that matches the input source signal. | |
| The display colour is abnormal. | After-image appears when the product is turned off. | If you display a still image on the screen for a long time, the LED package may be damaged rapidly. Use the screen-saver function. When a dark image is displayed on the screen after an image with high contrast (black and white or grey), this may cause image sticking. This is normal for LED products. |
| Screen has poor colour resolution (16 colours). | Set the colour depth to more than 24 bits (true colour). | |
| Screen colour is unstable or mono-coloured. | Check the connection status of the signal cable. Or, re-insert the PC graphics card. | |
| Does a black dot appear on the screen? | The few pixels (red, green, blue, white and black) that appear on the screen are due to the inherent characteristics of the LED surface. This is not a malfunction of the Screen. | |
| The operation does not work normally. | The power suddenly turned off. | Check if the auto-off function is activated on the settings related time. Power source has not being supplied properly. See if the product power cord is connected properly. |