LG 34BL85C User Manual

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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.

34WL85C

34BL85C

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:

A
anthonymorganJul 28, 2025
How to fix LG 34BL85C when nothing is displayed on the screen?
- E
  Eric QuinnJul 29, 2025
  If nothing is displayed on your LG Monitor screen, ensure the power cord is correctly plugged into the power outlet and that the power cable is properly connected. Then, press the power button. Also, verify that the connected input is enabled in the monitor settings (Settings > Input). Finally, check the signal cable between your PC and the monitor to ensure it's properly connected. If the issue persists, the signals from your PC might be outside the monitor's frequency range; refer to the product specifications to set the appropriate frequency.
S
Sarah TurnerAug 2, 2025
Why is there no sound on my LG 34BL85C?
- T
  Taylor JonesAug 2, 2025
  If images are displayed without sound on your LG Monitor, first ensure that the headphone port connections are properly made. If that's not the issue, try increasing the volume using the joystick. Finally, set the audio output of your PC to the monitor you are currently using. Note that the settings may vary depending on your operating system.
D
Daniel PerkinsAug 8, 2025
What to do if my LG 34BL85C screen display is unstable?
- R
  Rachel PerezAug 8, 2025
  If the screen display on your LG Monitor is unstable and shaky, or if images leave shadow trails, and the resolution is set to HDMI 1080i 60/50 Hz (interlaced), the screen may be flickering. Try changing the resolution to 1080p or the recommended resolution. Also, ensure that the graphics card is set to the recommended (optimal) resolution. If it is not, this may result in blurred text, a dimmed screen, a truncated display area, or misalignment of the display.
A
Ashley BergerAug 13, 2025
How to fix "Unrecognized monitor" message on LG Monitor?
- M
  mblackburnAug 13, 2025
  If you see an "Unrecognized monitor, Plug and Play (VESA DDC) monitor found" message on your LG Monitor, make sure to install the display driver from the LG website. Also, verify that your graphics card supports the Plug and Play function.
Q
qsalinasAug 17, 2025
Why are some LG 34BL85C menu functions not available?
- B
  Brandon HoweAug 18, 2025
  If some functions are unavailable when you press the Menu button on your LG Monitor, disable OSD Lock in the General settings.
J
Jeffery WashingtonAug 22, 2025
Why does image sticking occur on my LG 34BL85C Monitor?
- J
  John JonesAug 22, 2025
  Displaying a still image for a prolonged time may cause damage to the screen of your LG Monitor, resulting in the retention of the image. To extend the lifetime of the monitor, use a screensaver.

LG 34BL85C Specifications

General

Brand	LG
Model	34BL85C
Category	Monitor
Language	English

Summary

LICENSE

OPEN SOURCE SOFTWARE NOTICE INFORMATION

ASSEMBLING AND PREPARING

Assembly Safety Precautions

Important safety advice during the assembly process.

Product and Button Description

Joystick Button Operation

Guide to operating the monitor with the joystick.

Monitor Handling and Moving

Instructions for safely moving and lifting the monitor.

Installation and Adjustment

Installing on a Table

Steps to place the monitor on a table for use.

Stand Height and Angle Adjustment

Guide to adjusting the monitor's vertical position and tilt.

Kensington Lock Usage

How to secure the monitor with a Kensington security cable.

Wall Mounting Procedures

Procedures for mounting the monitor on a wall.

Wall Mounting Safety

Safety advice for attaching the monitor to a wall mount.

USING THE MONITOR

Connecting to a PC

Guide to connecting the monitor to a computer.

DisplayPort Connection

Instructions for connecting via DisplayPort.

HDMI Connection

Transmits digital video and audio signals via HDMI.

USB Device Connection

Connecting external devices using the monitor's USB hub.

Headphones Connection

Connecting headphones to the monitor's audio port.

USER SETTINGS

Activating the Main Menu

How to access and navigate the monitor's on-screen display (OSD).

Main Menu Features

Overview of the monitor's main menu options.

Menu Settings Navigation

How to navigate and adjust settings within the OSD menu.

Quick Settings

Adjusting common monitor settings like brightness and volume.

Input Settings

Selecting and configuring input sources and aspect ratios.

Picture Mode Settings

Selecting preset picture modes for different content types.

Picture Adjustments

Fine-tuning picture elements like sharpness and black level.

Game Adjustments

Optimizing settings for gaming, like response time and black stabilizer.

Color Adjustments

Customizing color temperature, hue, and saturation.

Picture Reset

Option to restore picture settings to default.

Sound Settings

Adjusting volume and MaxxAudio settings.

General Settings

Configuring language, power saving, and standby modes.

Smart Energy Saving

Enabling features to conserve power and reduce energy consumption.

Power LED Control

Managing the monitor's power indicator light.

HDMI Compatibility Mode

Adjusting settings for older HDMI devices.

Buzzer and OSD Lock

Configuring monitor sound alerts and disabling menu adjustments.

Information and Reset

Viewing monitor details and resetting to factory defaults.

TROUBLESHOOTING

Display Issues Troubleshooting

Resolving problems like no display, flickering, or image sticking.

Feature and Spot Issues

Addressing disabled features and screen spots.

Unrecognized Monitor and Plug and Play

Troubleshooting unrecognized monitor messages and Plug and Play issues.

Headphone Port and Sound Issues

Resolving problems with headphone port connectivity and sound output.

PRODUCT SPECIFICATION

Technical Specifications

Details on resolution, power, dimensions, and environmental conditions.

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