How to resolve the 'Unknown Product' message on LG 55LS75A Digital Signage?
If the 'Unknown Product' message appears when your LG Digital Signage is connected, check if the Plug & Play function is supported by referring to the video card user manual.
How to fix no image on LG 55LS75A?
If no image is displayed on your LG Digital Signage, first, ensure the power cord is correctly plugged into the power outlet. Then, verify the signal cable between the PC and the product is securely connected. Use the INPUT menu on the remote control to check the input signal. Also, the signal from the PC (video card) may be out of the vertical or horizontal frequency range, so adjust the frequency range by referring to the Specifications, noting the maximum resolution: 1920 x 1080 (60Hz).
Why is the screen color abnormal on my LG 55LS75A?
If the screen color on your LG Digital Signage is abnormal, set the number of colors to more than 24 bits (true color) via Control Panel - Display - Settings - Color Table menu in Windows. Also, check the connection status of the signal cable and try re-inserting the PC video card. Note that several pixels (red, green, white, or black color) may appear on the screen, which is attributable to the unique characteristics of the LCD panel and not a malfunction.
What to do if the audio function does not work on LG 55LS75A?
If the audio function does not work on your LG Digital Signage, check if the audio cable is connected properly. Adjust the volume and ensure the sound is set correctly. Also, try selecting the appropriate equalizer sound and adjusting the volume again.
Why does the screen image look abnormal on my LG 55LS75A Digital Signage?
If the screen image looks abnormal on your LG Digital Signage, ensure the video card resolution and frequency are supported by the product. If the frequency is out of range, set to the recommended resolution in the Control Panel Display Setting menu. Also, make sure the proper input signal is connected to the signal port by connecting the signal cable that matches with the source input signal.
How to prevent after-image on LG Digital Signage?
If an after-image appears on your LG Digital Signage, and you've been using a fixed image for a long time, this may damage the pixels; use the screen-saver function. When a dark image is displayed on the screen after an image with high contrast (black and white or gray), this may cause image sticking, which is normal for LCD screen products.
What to do if LG 55LS75A Digital Signage operation does not work normally?
If the operation of your LG Digital Signage does not work normally, check if the Timer is set. Also, check the power control settings and consider whether the power was interrupted.
Why does LG Digital Signage show 'Unknown Product' message?
If the 'Unknown Product' message appears when your LG Digital Signage is connected, check if the Plug & Play function is supported by referring to the video card user manual.
How to fix no image displayed on LG 55LS75A?
If no image is displayed on your LG Digital Signage, first, ensure that the power cord is correctly plugged into the power outlet. If the signal cable between your PC and the product isn't connected, check the signal cable and press the INPUT menu on the remote control to check the input signal. Also, if the signal from the PC is out of the vertical or horizontal frequency range, adjust the frequency range by referring to the specifications; the maximum resolution is 1920 x 1080 (60Hz).
General| Display Size | 55 inches |
|---|---|
| Panel Type | IPS |
| Brightness | 500 cd/m² |
| Aspect Ratio | 16:9 |
| Operating System | webOS |
| Contrast Ratio | 1200:1 |
| Viewing Angle (H x V) | 178° x 178° |
| Response Time | 8 ms |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -20°C to 60°C |
| Standby Power Consumption | 0.5 W |
| Display Type | LED |
| Resolution | 1920 x 1080 (Full HD) |
| Connectivity | HDMI, USB |
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