LG 55UL3G-B.AEU User Manual (English)

Questions and Answers:

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Amy HillAug 21, 2025
How to fix LG 55UL3G-B.AEU when the power won't turn on?
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  Amber RiceAug 21, 2025
  If your LG Digital Signage power won't turn on, first ensure the power cord is correctly plugged into the power outlet. For models with a circuit breaker, verify it's properly connected and the switch is set to 'on' (red). If using POE, ensure the LAN cable isn't damaged and do not connect an AC adapter simultaneously. Also, try disconnecting the AC adapter, cleaning the contacting port, and then turning the power on again. If operating in below zero temperature, the enclosure may not work for up to one hour to raise the internal temperature of the enclosure.
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Christina McmillanAug 23, 2025
Why is the screen's brightness dark on my LG 55UL3G-B.AEU?
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  Johnathan FerrellAug 23, 2025
  If your LG Digital Signage screen's brightness seems dark, try adjusting the brightness and contrast settings. If the internal temperature of the enclosure rises, the screen’s brightness may darken, so clean the heat exchanger or filter in the enclosure periodically. Backlight may need repair.
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Ruben SmithAug 25, 2025
What to do if my LG 55UL3G-B.AEU power suddenly turned off?
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  Sandra CopelandAug 25, 2025
  If your LG Digital Signage suddenly turned off, first check if the auto-off function is activated in the time-related settings. Ensure the product's power cord is properly connected and check the power control settings. If the internal temperature of the enclosure rises, the power may shut down, so clean the heat exchanger or filter periodically. Also, check if the fan is working properly by viewing the fan status in (SETTINGS) [General] [System Information] [Fan Status].
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bethsingletonAug 26, 2025
What does it mean when my LG Digital Signage says 'No signal'?
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  michaelsantiagoAug 26, 2025
  If your LG Digital Signage displays a 'No signal' or 'Invalid Format' message, check the signal cable connection between the PC and the product to ensure it's stable. Access the input menu to verify the input signal. If the signal from the PC (Graphics card) is out of the product's vertical or horizontal frequency range, adjust the frequency range by referring to the specifications in this manual.
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Ashley MeyerAug 27, 2025
Why is my LG 55UL3G-B.AEU Digital Signage screen displayed abnormally?
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  Mark OneillAug 28, 2025
  If your LG Digital Signage screen is displayed abnormally, connect the signal cable that matches the source input signal. Condensation may appear on the screen, but it will disappear in a certain period of time after the product is powered on. When connecting the panel and the Signage box, check their serial numbers to ensure they match. If they match, unplug the power cord and plug it in again to run the Clear Panel Noise feature, or run the feature in (Settings) [Display] [Advanced Settings] [OLED Panel Settings] [Clear Panel Noise] menu.
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Michael HigginsAug 29, 2025
How to troubleshoot no sound output on LG 55UL3G-B.AEU Digital Signage?
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  ahernandezAug 29, 2025
  If your LG Digital Signage has no sound output, check if the audio cable is connected properly. Adjust the volume of the product or external device. Also, verify that the sound settings are configured correctly.
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davidrileyAug 31, 2025
Why does my LG 55UL3G-B.AEU say 'Unknown Product'?
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  Amanda NorrisAug 31, 2025
  If you see the 'Unknown Product' message when your LG Digital Signage is connected, check if the driver of PC(graphics card) has been installed. Also, verify if the plug and play function is supported by the PC(graphics card) user manual.
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ricardo10Sep 1, 2025
How to correct the screen position on my LG Digital Signage?
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  ryan28Sep 2, 2025
  If the position of the screen on your LG Digital Signage is incorrect, check if the graphics card resolution and frequency are supported by the product. If using a D-Sub analog signal, press the button on the remote control to automatically select the optimal screen status. If the adjustment is not satisfactory, adjust the display settings manually in the OSD menu.
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William StephensSep 3, 2025
Why is my LG 55UL3G-B.AEU screen flickering?
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  Jeffrey RobbinsSep 3, 2025
  If images are flickering or fluttering on the screen of your LG Digital Signage, it may be normal if you turned the monitor on when it was cold. Also, make sure that the current resolution and frequency settings of the graphics card are supported by the monitor.
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Michelle CarpenterSep 5, 2025
How to fix dull sound on LG 55UL3G-B.AEU?
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  Brendan PaceSep 5, 2025
  If the sound from your LG Digital Signage is too dull, select the appropriate equalizer sound.

LG 55UL3G-B.AEU Specifications

General

Screen Size	55 inches
Contrast Ratio	1200:1
Viewing Angle (H x V)	178° x 178°
Response Time	8 ms
Refresh Rate	60 Hz
Operating System	webOS
Orientation	Landscape / Portrait
Display Type	LED
Operating Temperature	0°C to 40°C
Storage Temperature	-20°C to 60°C
Humidity	10% to 80%
Panel Technology	IPS
Resolution	3840 x 2160
Connectivity	HDMI, USB, RS-232C, RJ45
Bezel Width	12.9 mm