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LG 84WT70PS - User Manual

LG 84WT70PS
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OWNER’S MANUAL
MONITOR SIGNAGE
84WT70PS
Please read this manual carefully before operating the your set and
retain it for future reference.
MONITOR SIGNAGE MODELS

Table of Contents

Questions and Answers

  • M
    michaelbookerSep 9, 2025
    What causes unstable or mono-colored screen on LG Monitor?
    • J
      Jodi OlsonSep 10, 2025
      If your LG Monitor's screen color is unstable or mono-colored, check the connection status of the signal cable. You can also try re-inserting the PC video card.
  • T
    Thomas JonesAug 25, 2025
    How to fix no sound on LG Monitor?
    • E
      Eric JonesAug 25, 2025
      If there is no sound from your LG Monitor, check if the audio cable is properly connected. Also, adjust the volume and ensure the sound settings are configured correctly.
  • C
    Charles ThompsonAug 25, 2025
    How to increase sound volume on LG Monitor?
    • R
      Ryan LawrenceAug 26, 2025
      If the sound from your LG Monitor is too low, adjust the volume.
  • G
    Gregory NelsonSep 23, 2025
    Why does 'Unknown Product' message appear when connecting LG Digital Signage?
    • E
      Emily JonesSep 23, 2025
      If you see an 'Unknown Product' message when connecting your LG Digital Signage, check if the plug&play function is supported by referring to the video card user manual.
  • C
    Courtney WarnerSep 10, 2025
    How to fix Display Sharing connection that is not working on LG Monitor?
    • S
      Steven GrantSep 12, 2025
      If the Display Sharing connection is not working on your LG Monitor, try removing the monitor’s name from the device list or rebooting the sink device and then try to connect again. Also, try turning ‘Off’ and ‘On’ the Display Sharing in the monitor's menu.
  • V
    Veronica RamirezSep 15, 2025
    How to turn off Key Lock on LG Monitor?
    • M
      myersjimSep 15, 2025
      To release the key lock on your LG Monitor, go to Menu and Option and disable the Key Lock option.
  • R
    Ryan DavisSep 4, 2025
    Why can't I use 10 touch points on my LG Touchscreen in Windows 7?
    • C
      Colton KingSep 4, 2025
      If you cannot use 10 touch points on your LG Touchscreen in Windows 7, consider the following: * Ensure the content you are using (e.g., Flash Player, Paint) supports up to 10 touch points, as the content played may not support 10 touch points. * Remove the USB cable and connect it again after 10 seconds. * Run the content (e.g. Flash Player, Paint, etc.) again. * Restart your PC.
  • J
    Justin WrightSep 5, 2025
    Why is touch applied to the wrong monitor on my LG Touchscreen?
    • J
      Joel ScottSep 5, 2025
      If a touch is applied to a monitor other than the one you intended on your LG Touchscreen, especially when using multiple monitors, try the following: * Set the monitor as the default monitor in Control Panel > Display > Settings tab > Select the monitor > Use this device as the primary monitor (U) > Apply (A). * Calibrate the touch screen through Control Panel > Hardware and Sound > Tablet PC Settings > Display > Display options > Calibrate or Reset.
  • J
    Joshua VargasDec 1, 2025
    What to do if touch response is not working on LG 84WT70PS?
    • D
      Dalton RamirezDec 1, 2025
      If you are experiencing problems with touch response on your LG Digital Signage, begin by checking the USB cable connection between your PC and the monitor. Ensure it is firmly connected. Also, verify the connection in Windows 7 / 8.x under Control Panel > System and Security > System, and check the number of touch-points supported under Pen and Touch. Ensure your PC's power cord is firmly plugged into a power outlet and that the monitor is powered on. If the screen is on, restart your PC to resolve potential network instability issues. Finally, if using Windows 7 / 8.x, calibrate or reset the touch screen via Control Panel > Hardware and Sound > Tablet PC Settings > Display > Display options. If you are using multiple monitors, set the monitor as the default monitor via Control Panel > Di...
  • C
    Curtis BrownAug 30, 2025
    Why can't I use 10 touch points on LG 84WT70PS Digital Signage in Windows 7/8.x?
    • B
      Bryan DudleyAug 30, 2025
      If you cannot use 10 touch points in Windows 7 / 8.x on your LG Digital Signage, ensure that the content you are using supports up to 10 touch points. Some applications, like Flash Player or Paint, may not support it. Try removing and reconnecting the USB cable after 10 seconds, or restart the content. Restarting your PC may also help. Note that touch errors may occur if the gap between two touch points is 20 mm or less, and 10 touch points may work unstably on the edge of the touch screen.

Summary

ASSEMBLING AND PREPARING

Parts and Buttons

Identifies physical parts and buttons on the monitor and its connection panel for user reference.

Mounting on a Wall

Guidelines and safety precautions for properly mounting the monitor on a wall.

REMOTE CONTROL

USING THE MONITOR

Connecting to a PC

Explains how to connect a PC to the monitor, including the Plug & Play feature.

ENTERTAINMENT

Connecting USB Storage Devices

Guide to connecting USB devices (HDD, memory) to play media files.

CUSTOMIZING SETTINGS

PICTURE Settings

How to adjust picture settings like mode, energy saving, and aspect ratio for optimal viewing.

SOUND Settings

How to adjust sound settings like mode, virtual surround, clear voice, and AV sync.

NETWORK Settings

How to configure network connection, check status, and enable display sharing.

MAKING CONNECTIONS

USING THE TOUCH SCREEN

To Use the Touch Screen on Windows 7; 8 (Enterprise)

Steps to connect and enable touch screen functionality with compatible Windows operating systems.

TROUBLESHOOTING

No image is displayed

Solutions for issues where no image appears on the screen, checking connections and power.

The screen image looks abnormal.

Solutions for various screen image abnormalities like incorrect position, noise, or blurriness.

The audio function does not work.

Troubleshooting steps for issues related to no sound or poor audio quality.

Screen color is abnormal.

Solutions for abnormal screen color, instability, or pixel issues.

The operation does not work normally.

Troubleshooting for general operational issues, such as sudden power off or unresponsiveness.

I have a problem with touch response.

Comprehensive guide to resolving issues related to touch screen input and calibration.

Display Sharing function does not operate.

Solutions for problems encountered when using the Display Sharing feature.

CONTROLLING THE MULTIPLE PRODUCT

Command Reference List

Comprehensive list of commands, their codes, and data ranges for product control via RS-232C.

Transmission; Receiving protocol

Explains the command transmission format and acknowledgement protocols for product control.

LG 84WT70PS Specifications

General IconGeneral
Screen Size84 inches
Contrast Ratio1200:1
Viewing Angle178°/178°
Panel TypeIPS
Display TypeLED
Response Time8 ms
External ControlRS-232C, LAN
OrientationLandscape / Portrait
Operating Temperature0°C to 40°C
Operating SystemWebOS
RAM2 GB
Resolution3840 x 2160
Brightness500 cd/m²
InputHDMI, DisplayPort
OutputAudio Out
Power Supply100-240V~, 50/60Hz
ProcessorQuad Core
PortsUSB, HDMI, DisplayPort, RS-232C, LAN
Power Consumption450W

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