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LG 55UM3DF - User Manual

LG 55UM3DF
129 pages
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OWNER’S MANUAL
LG Digital Signage
(MONITOR SIGNAGE)
www.lg.com
Copyright © 2019 LG Electronics Inc. All Rights Reserved.
Please read this manual carefully before operating your set and retain it for future
reference.
43UM3F
43UH5F
43UM3DF
49UM3F
49UH5F
49UM3DF
49UH7F
55UM3F
55UH5F
55UM3DF
55UH7F
65UM3F
65UH5F
65UM3DF
65UH7F

Table of Contents

Other manuals for LG 55UM3DF

Questions and Answers

  • A
    Aaron PierceSep 12, 2025
    Why is there no image on my LG 55UM3DF?
    • S
      Sarah HansenSep 12, 2025
      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.
  • T
    Thomas FitzpatrickAug 25, 2025
    Why is no image displayed on my LG 55UM3DF Digital Signage?
    • L
      Lisa JohnsonAug 25, 2025
      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.
  • A
    Adam HamiltonAug 25, 2025
    What to do if the screen image looks abnormal on my LG Digital Signage?
    • S
      Sonya WilsonAug 26, 2025
      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.
  • C
    Cheryl BarrySep 23, 2025
    What to do if the Unknown Product message appears when my LG 55UM3DF is connected?
    • D
      Dawn NavarroSep 23, 2025
      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.
  • R
    Robert GardnerSep 12, 2025
    What to do if the audio function does not work on LG Digital Signage?
    • N
      Natalie HoltSep 12, 2025
      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.
  • F
    Frank DavisSep 16, 2025
    What to do if LG Digital Signage shows 'Unknown Product' message?
    • S
      Shane TrujilloSep 16, 2025
      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.
  • M
    Mr. Benjamin WoodSep 5, 2025
    Why does after-image appear on my LG 55UM3DF Digital Signage?
    • K
      Kevin HoSep 5, 2025
      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.
  • W
    William MitchellSep 5, 2025
    What to do if the Unknown Product message appears when connecting LG 55UM3DF?
    • S
      sgarnerSep 5, 2025
      Check if the function is supported by referring to the graphics card user manual.
  • F
    Francisco MarshallSep 17, 2025
    Why does the screen image look abnormal on my LG 55UM3DF Digital Signage?
    • K
      Kelsey GriffinSep 17, 2025
      If the screen image on your LG Digital Signage looks abnormal, verify that the graphics card resolution and frequency are supported by the product. If the frequency is out of range, set the recommended resolution in the “Display” settings in Control Panel. Also, ensure the proper input signal is connected to the signal port by using the correct signal cable for the source input signal.
  • B
    Brandi HarringtonAug 30, 2025
    Why is the screen color abnormal on my LG 55UM3DF?
    • M
      Mary NewmanAug 30, 2025
      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.

Summary

Important Safety Precautions

Electrical Power Safety Guidelines

Safety guidelines for using electrical power, including cord usage and grounding.

Product Installation Safety Measures

Safety measures to follow during product installation, covering environment and physical placement.

Safe Product Moving Procedures

Guidelines for safely moving the product to prevent damage or injury.

Usage and Cleaning Safety Instructions

Best practices for product operation, cleaning, and avoiding hazards.

Environmentally Responsible Product Disposal

Instructions for the safe and environmentally responsible disposal of the product.

Assembly and Preparation Guide

Optional Accessories List

Lists and describes optional accessories available for the product.

Identifying Product Parts and Buttons

Identifies and explains the various parts and buttons on the product.

Connecting the Monitor Stand

Step-by-step instructions for attaching the product's stand.

IR Sensor Connection Procedure

Guidance on connecting the IR sensor for remote control functionality.

Setting Up Portrait Display Orientation

Instructions for orienting the display in a portrait orientation.

LG Logo Bracket Installation and Removal

Procedures for installing and removing the LG logo bracket.

Memory Cover Assembly Steps

Steps for correctly assembling the memory cover.

Wall Mounting Installation Guide

Instructions for securely mounting the product on a wall.

Remote Control Functions

Making Connections

Connecting the Monitor to a PC

Guide to establishing a connection between the monitor and a PC.

Connecting External Video Devices

Instructions for connecting external devices like DVD players or receivers.

Navigating the Input Selection Menu

How to navigate and select input sources using the input list.

Setting Up Multiple Monitors

Steps for setting up and connecting multiple monitors together.

Troubleshooting Common Issues

Detailed Product Specifications

License and Compliance Information

LG 55UM3DF Specifications

General IconGeneral
Screen Size55 inches
Panel TypeIPS
Contrast Ratio1200:1
Viewing Angle (H x V)178 x 178
Life Time50, 000 hours
Operation Hours16/7
OrientationLandscape / Portrait
Speaker10W x 2
Power SupplyAC 100-240V, 50/60Hz
Power Consumption (Typ.)150W
Operating Temperature0°C to 40°C
Operating Humidity10% to 80%
VESA Mount Standard400 x 400 mm
Resolution3840 x 2160 (UHD)
Response Time8 ms
Surface TreatmentAnti-glare
InputHDMI, DisplayPort, USB
OutputAudio Out
External ControlRS-232C
Dynamic Contrast RatioMega Contrast

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