Why is there no image on my LG 55UM3F?
If no image is displayed on your LG Digital Signage, ensure the power cord is correctly plugged into the power outlet. Also, check the signal cable and access the input menu to check the input signal. If the signal from the PC (Graphics card) is out of the vertical or horizontal frequency range of the product, adjust the frequency range by referring to the Specifications in this manual.
Why is no image displayed on my LG 55UM3F?
There might be several reasons why your LG Digital Signage is not displaying an image. First, ensure that the power cord is correctly plugged into the power outlet. Also, check the signal cable and access the input menu to verify the input signal. If the signal from the PC's graphics card is out of the product's vertical or horizontal frequency range, adjust the frequency range according to the specifications.
What to do if the screen image looks abnormal on my LG 55UM3F Digital Signage?
If the screen image on your LG Digital Signage looks abnormal, it could be due to the graphics card resolution and frequency not being supported by the product. Verify that the graphics card resolution and frequency are supported. If the frequency is out of range, set it to the recommended resolution in the “Display” settings in the Control Panel. Another potential cause is an improper input signal connected to the signal port. Ensure that you connect the appropriate signal cable that matches the source input signal.
What to do if the 'Unknown Product' message appears when connecting my LG 55UM3F?
If you see an 'Unknown Product' message, check if the function is supported by referring to the graphics card user manual.
What to do if the audio function does not work on LG 55UM3F Digital Signage?
If the audio function does not work on your LG Digital Signage, verify that the audio cable is connected properly. Adjust the volume and ensure the sound is set properly. Also, select the appropriate equalizer sound and check the volume level.
What to do if LG 55UM3F shows 'Unknown Product' message?
If the 'Unknown Product' message appears when your LG Digital Signage is connected, check if the function is supported by referring to the graphics card user manual.
Why does after-image appear on my LG 55UM3F Digital Signage?
If after-image appears on your LG Digital Signage, and you use a fixed image for a long time, this may be because the pixels may be damaged. Use the screen-saver function. Note that this is normal for LCD screen products.
What to do if the Unknown Product message appears when connecting LG 55UM3F?
Check if the function is supported by referring to the graphics card user manual.
What to do if the Unknown Product message appears when my LG 55UM3F Digital Signage is connected?
If the 'Unknown Product' message appears when your LG Digital Signage is connected, check if the function is supported by referring to the graphics card user manual.
Why is the screen color abnormal on my LG Digital Signage?
If the screen color on your LG Digital Signage appears abnormal, ensure that the number of colors is set to more than 24 bits (true color) via Control Panel - Display - Settings - Color Table in Windows. Also, check the connection status of the signal cable, and if necessary, re-insert the PC graphics card. Note that several pixels (red, green, white, blue or black) may appear, which is normal for LCD panels and not a malfunction.
General| Brand | LG |
|---|---|
| Model | 55UM3F |
| Category | Digital Signage |
| Language | English |
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