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LG 34WL850 - User Manual

LG 34WL850
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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.
34WL850
34BL850
OWNER’S MANUAL
LED LCD MONITOR
(LED Monitor*)
www.lg.com
Copyright © 2018 LG Electronics Inc. All Rights Reserved.

Table of Contents

Questions and Answers

  • J
    Jason MooreJul 28, 2025
    What to do if nothing is displayed on my LG 34WL850 Monitor screen?
    • M
      michaelgambleJul 28, 2025
      If nothing is displayed on your LG Monitor screen, try the following: * Ensure the power cord is correctly plugged into the power outlet. * Check the power cable connection and press the power button. * Verify the connected input is enabled in the monitor's settings (Settings > 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. * If the signals from the PC are out of the monitor's frequency range, see the Product Specification section of this manual to set the appropriate frequency. * If the signal cable is missing or disconnected, check the cable and reconnect it. * If you are using a Mac, DisplayPort 1.2 may not be supported. Please contact the manufacturer.
  • J
    Joan MannAug 3, 2025
    What to do if there is no sound from the headphone port on my LG Monitor?
    • E
      escottAug 3, 2025
      If there is no sound from the headphone port on your LG Monitor: * Ensure that the headphone port connections are properly made. * Try increasing the volume using the joystick. * Set the audio output of the PC to the monitor you are using. On Microsoft Windows, go to Control Panel > Hardware and Sound > Sound and set the Monitor as the default device.
  • K
    kevin36Aug 8, 2025
    How to turn off OSD Lock message on LG 34WL850 Monitor?
    • A
      Anna NguyenAug 8, 2025
      To turn off the OSD Lock message on your LG Monitor, go to Settings > General and set OSD Lock to Off.
  • A
    Arthur EllisAug 12, 2025
    Why does my LG 34WL850 screen retain an image?
    • D
      Daniel OconnellAug 12, 2025
      Displaying a still image for a prolonged time may cause damage to the screen, resulting in the retention of the image on your LG Monitor. To extend the lifetime of the monitor, use a screensaver.
  • E
    Emily DavilaAug 18, 2025
    Why is the display color abnormal on my LG Monitor?
    • J
      Joseph WeeksAug 18, 2025
      If the display color on your LG Monitor is abnormal: * Set the color to 24 bit (true color) or higher. In Windows, go to Control Panel > Display > Settings > Color Quality. * Check if the signal cable is properly connected. Reconnect the cable or reinsert the PC's graphic card. * Note that this may not be an error, nor is it related to the monitor's performance.
  • J
    jacksonnicoleAug 23, 2025
    How to fix 'Unrecognized monitor, Plug and Play (VESA DDC) monitor found' message on LG monitor?
    • N
      noblejodyAug 23, 2025
      To resolve the "Unrecognized monitor, Plug and Play (VESA DDC) monitor found" message on your LG monitor, install the display driver from the LG website: http://www.lg.com. Also, ensure that your graphic card supports the Plug and Play function.

Summary

OPEN SOURCE SOFTWARE NOTICE INFORMATION

ASSEMBLING AND PREPARING

Product and Button Description

Joystick Button Usage

Control monitor functions using the joystick button.

Monitor Moving and Lifting

Installation and Adjustment Procedures

Table Installation

Place monitor on table with ventilation clearance.

Stand Height Adjustment

Adjust monitor height safely using both hands.

Screen Angle Adjustment

Adjust screen angle forward/backward for viewing comfort.

Security and Mounting Options

Kensington Lock Usage

Secure the monitor using a Kensington security system.

Wall Mount Plate Installation

Prepare for wall mounting using a compatible plate.

Wall Installation

Mount the monitor on the wall ensuring proper ventilation.

USING THE MONITOR

PC Connection

Connect the monitor to a computer via various input methods.

PC HDMI Connection

Transmit digital video and audio signals via HDMI.

PC DisplayPort Connection

Transmit digital video and audio signals via DisplayPort.

PC Thunderbolt Connection

Connect high-resolution display or data via Thunderbolt 3 port.

Connecting AV Devices

AV HDMI Connection

Transmit digital video and audio signals from AV device.

Connecting Peripherals

USB Device Connectivity

Utilize USB port as a USB hub for connecting devices.

Additional Connections and Audio

HDMI;DP Input Handling

Handle PC input via HDMI/DP for USB peripheral control.

Headphone Port Connection

Connect audio peripherals to the monitor via the headphones port.

USER SETTINGS

Main Menu Activation

Learn how to navigate and control the monitor's OSD menu.

Main Menu Features

Menu Settings

Quick Settings Menu

Input Selection and Settings

Input Mode Selection

Select the input mode for the monitor.

Screen Aspect Ratio Adjustment

Adjust the aspect ratio of the screen display.

Picture-by-Picture (PBP) Mode

Display two input modes simultaneously on one monitor.

PBP Screen Toggle

Toggle main and sub screens in PBP mode.

PBP Sound Toggle

Toggle audio between main and sub screens in PBP mode.

Picture Settings Menu

Picture Mode Selection

Select preset picture modes for different viewing scenarios.

Detailed Picture Adjustments

Brightness and Contrast Control

Adjust screen brightness and contrast levels.

Sharpness and Resolution Enhancement

Enhance image sharpness and detail.

Black Level and Dynamic Contrast Control

Adjust black levels and automatic brightness.

Image Uniformity Adjustment

Adjust uniformity of the image.

Game Mode Adjustments

Response Time Settings

Set response time for displayed pictures based on screen speed.

FreeSync Technology

Synchronize display refresh rate with graphics card for smoother images.

Black Stabilizer Adjustment

Control black contrast for better visibility in dark scenes.

Color Adjustment Settings

Gamma and Color Temperature

Adjust gamma values and screen color temperature.

Custom Color Adjustments

Customize picture colors using RGB and six-color adjustments.

Picture Settings Reset

Reset picture settings to default.

Sound Settings Menu

Volume Control

Adjusts the volume level.

MaxxAudio Enhancement

Enable or disable MaxxAudio sound enhancement.

General Settings Menu

Language Selection

Set the menu screen to the desired language.

Smart Energy Saving Features

Conserve energy using luminance compensation.

Power LED Indicator

Turn the power LED on the bottom of the monitor on or off.

Automatic Standby Timer

Automatically turn off the monitor after a period of inactivity.

Advanced General Options

DisplayPort Version Setting

Set DisplayPort/Thunderbolt version for compatibility.

HDMI Compatibility Mode

Enable compatibility for legacy HDMI equipment.

Buzzer and OSD Lock Settings

Configure buzzer sound and lock OSD menus.

Monitor Information and Reset

View monitor info and reset settings to default.

Troubleshooting Guide

No Screen Display

Troubleshoot issues when the screen remains blank.

Power LED Troubleshooting

Check power LED status for troubleshooting.

Signal and Frequency Errors

Address out-of-range signals or 'No Signal' messages.

OSD Lock Troubleshooting

Resolve issues when the OSD is locked.

Image Retention and Display Issues

Image Retention and Display Issues

Address image sticking and unstable display issues.

Display Color and Sound Issues

Display Color and Sound Issues

Resolve color anomalies and headphone port sound problems.

Plug and Play Errors

Troubleshoot Plug and Play recognition errors.

PRODUCT SPECIFICATION

Factory Support Mode (PC)

HDMI Timing (Video)

Supplier Declaration of Conformity

LG 34WL850 Specifications

General IconGeneral
BrandLG
Model34WL850
CategoryMonitor
LanguageEnglish

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