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LG 34UC89G - User Manual

LG 34UC89G
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* LG LED Monitor applies LCD screen with LED
backlights.
Please read this manual carefully before operating
your set and retain it for future reference.
www.lg.com
34UC89G
OWNER’S MANUAL
IPS LED Monitor
(LED Monitor*)

Table of Contents

Questions and Answers

  • J
    jenniferirwinJul 27, 2025
    How to fix an LG 34UC89G when nothing is displayed on the screen?
    • K
      Kelly RamirezJul 27, 2025
      If nothing is displayed on your LG Monitor, there are several things you can check: * Ensure the power cord is correctly plugged into the power outlet. * Verify the power cable connection and press the power button. * Make sure the connected input is enabled by going to Menu > Input. * If the monitor is in sleep mode, move the mouse or press any key on the keyboard. Also, check if the computer is turned on. * Check the signal cable between the PC and the monitor and reconnect it if necessary. * Ensure that you install the display driver from the provided CD or download it from the LG website. Also, verify that your graphics card supports Plug and Play.
  • D
    Danielle MillerJul 31, 2025
    What to do if there is no sound from the headphone port on my LG 34UC89G Monitor?
    • K
      kwilliamsAug 1, 2025
      If there is no sound from the headphone port on your LG Monitor, try the following: * Ensure that the headphone port connections are properly made. * Increase the volume using the joystick. * Set the audio output of the PC to the monitor by going to Control Panel > Hardware and Sound > Sound and setting the Monitor as the default device on Microsoft Windows.
  • A
    Ashley MathisAug 5, 2025
    Why is my LG 34UC89G Monitor screen display unstable and shaky?
    • J
      Jonathan PaulAug 5, 2025
      If the screen display on your LG Monitor is unstable, shaky, or images leave shadow trails, and if the selected resolution is HDMI 1080i 60/50 Hz (interlaced), the screen may be flickering. Change the resolution to 1080p or the recommended resolution.
  • S
    Scott HawkinsAug 11, 2025
    Why is the display color abnormal on my LG Monitor and how can I fix it?
    • J
      Jamie QuinnAug 11, 2025
      If the display color on your LG Monitor is abnormal, try the following: * Set the color to 24 bit (true color) or higher by going to Control Panel > Display > Settings > Color Quality in Windows. * Check the signal cable connection. Reconnect the cable or reinsert the PC's graphics card. * Note that pixilated spots (red, green, blue, white, or black) may appear on the screen, which is normal for an LCD screen and not related to the monitor's performance.
  • J
    Julie RamosAug 15, 2025
    Why does my LG Monitor screen retain an image?
    • A
      Alexandra GonzalezAug 16, 2025
      If your LG Monitor screen retains an image, it may be due to displaying a still image for a prolonged time, which can cause damage. To extend the monitor's lifespan, use a screensaver.
  • D
    Dr. Ashley KingAug 21, 2025
    How to enable disabled features on my LG 34UC89G?
    • K
      kathryn52Aug 21, 2025
      If some features are disabled on your LG Monitor, the OSD may be locked. To unlock it, go to Menu > General and set OSD Lock to Off.

Summary

ASSEMBLING AND PREPARING

Product Composition

Supported Drivers and Software

How to Use the Joystick Button

Moving and Lifting the Monitor

Provides instructions to safely move and lift the monitor to prevent damage.

Monitor Installation and Adjustment

Guide on setting up the monitor, including stand assembly and adjustment.

Assembling the Stand

Step-by-step instructions for assembling the monitor stand.

Stand Removal and Wall Mounting

Installing the Wall Mount Plate

Steps for attaching a wall mount plate to the monitor.

Installing on the Wall

Guidelines for mounting the monitor securely on a wall.

USING THE MONITOR

Connecting to a PC

Instructions for connecting the monitor to a computer via Plug and Play.

HDMI Connection

Guide for transmitting digital video and audio signals using an HDMI cable.

DisplayPort Connection

Instructions for connecting the monitor to a PC using a DisplayPort cable.

Connecting Peripherals and Headphones

USB Cable connection

USER SETTINGS

Accessing and Navigating Menus

Activating the Main Menu

Main Menu Features

Game Mode and Adjustments

Explains how to select and customize game modes and adjust related settings.

Picture and Input Settings

General Settings

TROUBLESHOOTING

Screen Display Issues

Solutions for problems like no image, flickering, or incorrect resolution.

Nothing is displayed on the screen.

Solutions for problems like no image, flickering, or incorrect resolution.

Screen instability and image trails

Color and Sound Issues

The display color is abnormal.

PRODUCT SPECIFICATION

LG 34UC89G Specifications

General IconGeneral
Screen Size34 inches
Resolution2560 x 1080
Panel TypeIPS
Response Time5ms (GTG)
Aspect Ratio21:9
Brightness300 cd/m²
Contrast Ratio1000:1
ConnectivityDisplayPort, HDMI, USB 3.0
G-SyncYes
DisplayPort Version1.2
HDMI Version2.0
Viewing Angle178° (H) / 178° (V)
Color GamutsRGB 99%
VESA Mount100 x 100 mm
Curvature3800R
Refresh Rate144 Hz
USB Ports2 x USB 3.0 (downstream), 1 x USB 3.0 (upstream)
PortsHeadphone Out

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