LG 75UM3E-B.AUS User Manual (English)

Questions and Answers:

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sphelpsAug 17, 2025
What to do if no image is displayed on LG 75UM3E-B.AUS?
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  nelsonamandaAug 17, 2025
  If no image appears on your LG Digital Signage, verify that the power cord is properly connected to the outlet. If you see an “Invalid Format” message, the signal from your PC might be outside the product's frequency range; adjust it within the specifications in this manual. If a “No Signal” message appears, ensure the signal cable between the PC and the product is securely connected and that the correct input signal is selected in the input menu.
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riveranicoleAug 19, 2025
Why is the screen color abnormal on my LG 75UM3E-B.AUS?
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  natalie60Aug 19, 2025
  If your LG Digital Signage displays poor color resolution (16 colors), increase the color depth to more than 24 bits (true color) via Control Panel - Display - Settings - Color Table in Windows. If the screen color is unstable or mono-colored, check the signal cable connection or try re-inserting the PC graphics card. Note that a few colored pixels may appear due to the unique characteristics of the LCD panel and do not indicate a malfunction.
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ronald93Aug 22, 2025
What to do if the audio function does not work on LG 75UM3E-B.AUS?
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  youngerikaAug 22, 2025
  If the audio on your LG Digital Signage isn't working, first check that the audio cable is properly connected. If the sound is too dull, try selecting a different equalizer setting. If the sound is too low, adjust the volume.
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Erin TurnerAug 25, 2025
Why does the screen image look abnormal on my LG 75UM3E-B.AUS Digital Signage?
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  Cameron KimAug 26, 2025
  If the screen position is wrong, check that the graphics card resolution and frequency are supported by the LG Digital Signage. If the frequency is out of range, set the resolution in the Control Panel Display Setting menu. If the screen is displayed abnormally, ensure the correct input signal is connected to the appropriate signal port.
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Patricia MartinAug 27, 2025
What to do if after-image appears on LG Digital Signage?
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  matthewhaleAug 28, 2025
  If an after-image appears on your LG Digital Signage after it's turned off, and you've been using a fixed image for a long time, the pixels may be damaged. Use the screen-saver function. Also, displaying a dark image after a high-contrast image may cause image sticking, which is normal for LCD screens.
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connersarahAug 30, 2025
Why does the 'Unknown Product' message appear when connecting LG Digital Signage?
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  John FischerAug 31, 2025
  If the 'Unknown Product' message appears when connecting your LG Digital Signage, verify if the Plug and Play function is supported by consulting the graphics card user manual.
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Jillian WatkinsSep 2, 2025
How to fix abnormal screen color on LG 75UM3E-B.AUS Digital Signage?
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  Jessica Morales DDSSep 2, 2025
  To correct abnormal screen colors on your LG Digital Signage, set the color depth to more than 24 bits (true color) via Control Panel - Display - Settings - Color Table in Windows. Check the signal cable connection, and if necessary, re-insert the PC graphics card. Note that a few red, green, white, blue, or black pixels may appear due to the LCD panel's characteristics, which is not a malfunction.
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Jessica JordanSep 5, 2025
How to troubleshoot audio function on LG 75UM3E-B.AUS Digital Signage?
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  doylenicholasSep 5, 2025
  If the audio function on your LG Digital Signage isn't working, first check if the audio cable is properly connected. Then, adjust the volume and verify the sound settings. Also, try selecting an appropriate equalizer sound.
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emilyjohnsonSep 7, 2025
Why is there an after-image on my LG 75UM3E-B.AUS?
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  hdavisSep 7, 2025
  If you notice an after-image on your LG Digital Signage, it might be due to using a fixed image for an extended period, which can damage pixels. Using the screen-saver function can help prevent this. Also, image sticking can occur when a dark image is displayed after a high contrast image; this is normal for LCD screens.
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Stephanie FloresSep 10, 2025
What to do if 'Unknown Product' message appears on LG Digital Signage?
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  Michael LawrenceSep 10, 2025
  If you see an 'Unknown Product' message when connecting your LG Digital Signage, check if the Plug and Play function is supported by referring to the graphics card user manual.

LG 75UM3E-B.AUS Specifications

General

Panel Type	IPS
Aspect Ratio	16 : 9
Operating Temperature	0 °C to 40 °C
Storage Temperature	-20 °C to 60 °C
Standby Power Consumption	0.5W
Screen Size	75 inches
Resolution	3840 x 2160 (4K UHD)
Contrast Ratio	1200:1
Viewing Angle (H x V)	178° x 178°
Response Time	8 ms (GtG)
Surface Treatment	3% Haze
Orientation	Landscape/Portrait
Input	HDMI, DisplayPort, DVI-D, USB
Output	Audio Out
External Control	RS-232C