LG 43BN70U - User Manual

Questions and Answers

J
Jason GravesJul 28, 2025
What to do if nothing is displayed on my LG Monitor screen?
- M
  Monica RobinsonJul 28, 2025
  If nothing is displayed on your LG Monitor screen, start by checking if the power cord is correctly plugged into the power outlet. Also, verify the power cable connection and ensure you press the power button. Confirm that the connected input is enabled in the monitor's settings (Settings > Input > Input list). Check the cable and reconnect it. If the signals from your PC are out of range, refer to the Product Specification section of this manual to set the appropriate frequency.
M
Michael HooverAug 1, 2025
How to fix no sound from LG 43BN70U Monitor headphone port?
- A
  adamwuAug 1, 2025
  If there is no sound from the headphone port or speaker of your LG Monitor, try increasing the volume using the button on the monitor. Additionally, ensure that the audio output of your PC is set to the monitor you are using. In Microsoft Windows, go to Control Panel > Hardware and Sound > Sound and set the monitor as the default device.
K
Kelsey HoltAug 5, 2025
Why is the display color abnormal on my LG Monitor?
- R
  Rhonda LaneAug 5, 2025
  If the display color on your LG Monitor is abnormal, ensure that the color is set to 24 bit (true color) or higher by going to Control Panel > Display > Settings > Color Quality in Windows. Also, check if the signal cable is properly connected; reconnect the cable or reinsert the PC's graphics card. Note that sometimes this is not an error and is unrelated to the monitor's performance.
J
Jason FerrellAug 10, 2025
What to do if LG 43BN70U Monitor screen display is unstable and shaky?
- M
  Maxwell WallaceAug 10, 2025
  If your LG Monitor's screen display is unstable, shaky, or images leave shadow trails, and the selected resolution is HDMI 1080i 60/50 Hz (interlaced), the screen may be flickering. Try changing the resolution to 1080P or the recommended resolution.
C
Carol BensonAug 14, 2025
Why does my LG 43BN70U screen retain an image?
- E
  edurhamAug 14, 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.
D
Dr. James WebbAug 17, 2025
How to resolve 'Unrecognized monitor, Plug&Play (VESA DDC) monitor found' message on LG 43BN70U?
- G
  gblairAug 18, 2025
  To resolve the 'Unrecognized monitor, Plug&Play (VESA DDC) monitor found' message on your LG Monitor, install the display driver from http://www.lg.com. Also, ensure that your video card supports the Plug&Play function.
S
Sue ShepherdAug 22, 2025
How to turn off OSD lock on LG 43BN70U Monitor?
- E
  Eric VargasAug 22, 2025
  If the OSD lock message is being displayed on your LG Monitor, go to Settings > General and set OSD Lock to Off.

Summary

LICENSE

ASSEMBLING AND PREPARING

Supported Drivers and Software

Download and install the latest drivers and software from the LGE website.

Component and Button Description

Detailed description of the monitor's physical components and buttons.

How to Use the Joystick Button

Instructions on operating monitor functions using the joystick button.

Moving and Lifting the Monitor

Safety guidelines for safely moving and lifting the monitor to prevent damage.

Using the Cable Holder

How to arrange cables neatly using the provided cable holder.

Installing onto a Table

Instructions for placing the monitor on a table, ensuring adequate ventilation.

Adjusting the Screen Angle

How to adjust the monitor's screen angle for optimal viewing comfort.

Power Cord Connection Cautions

Important safety precautions when connecting the monitor's power cord.

Using the Kensington Lock

Guide on installing and utilizing the Kensington security lock for theft prevention.

Installing the Wall Mount Plate

Steps for attaching the wall mount plate to the monitor for wall installation.

Installing to a Wall

Guidelines for mounting the monitor securely on a wall with proper spacing.

REMOTE CONTROL

Remote Control Operation

Instructions on installing batteries and using the monitor's remote control for various functions.

USING THE MONITOR

Connecting to PC

How to connect the monitor to a personal computer via HDMI, DisplayPort, and USB-C.

Connecting AV Devices

How to connect audio-visual devices to the monitor using HDMI.

Connecting Peripherals

Connecting external USB devices and peripherals to the monitor's USB hub.

Connecting External Devices

Connecting external audio devices like headphones to the monitor's headphone jack.

USER SETTINGS

Activating the Main Menu

Steps to access and activate the monitor's On-Screen Display (OSD) menu.

Main Menu Features

Overview of the primary functions and features available in the main OSD menu.

Menu Settings Configuration

Detailed configuration of OSD menu options like Quick Settings, Input, Picture, and General.

TROUBLESHOOTING

No Screen Display Issues

Common causes and solutions for when the monitor screen displays nothing.

OSD Lock Message Resolution

How to resolve issues when OSD functions are locked or unavailable.

Image Retention Issues

Troubleshooting and preventing screen image retention or temporary ghosting.

Unstable Display and Shadow Trails

Addressing problems with unstable screen display or visible shadow trails.

Abnormal Display Color

Solutions for issues related to discolored, unstable, or monochrome display output.

Unrecognized Monitor Message

Steps to take if the system reports an unrecognized monitor or driver.

Audio Output Issues

Troubleshooting problems with no sound from the monitor's headphone port or speakers.

SPECIFICATIONS

LCD Screen Specifications

Technical details on LCD screen type, resolution, and refresh rates.

Power Input and Consumption

Information on the monitor's power requirements and energy consumption levels.

Environmental Operating Conditions

Specifies the operating and storing temperature and humidity ranges for the monitor.

Monitor Dimensions

Physical measurements of the monitor, including width, height, and depth.

Monitor Weight

The weight of the monitor with and without its packaging.

Factory Support Modes and Input Signals

Lists supported display resolutions and frequencies for HDMI and DisplayPort/USB-C inputs.

HDMI Video Timing

Specifies horizontal and vertical frequencies for different HDMI video timings.

Power LED Status

Details the color and state of the power LED indicator for different modes.

EXTERNAL CONTROL DEVICE SETUP

Communication Parameters

Defines parameters like baud rate, data length, and parity for external control.

Transmission Command Structure

Outlines the format and components of commands for monitor control.

Acknowledgement Signals

Explains the format of normal and error acknowledgements from the monitor.

Command Reference List

A comprehensive table of all commands, their codes, and data ranges for monitor control.

Suppliers Declaration of Conformity

LG 43BN70U Specifications

General

Pixel pitch	0.2451 x 0.2451 mm
Screen shape	Flat
Response time	8 ms
Display surface	Matt
Display diagonal	43 \
Display technology	-
Native aspect ratio	16:9
Maximum refresh rate	- Hz
NTSC coverage (typical)	72 %
Digital vertical frequency	56 - 61 Hz
Digital horizontal frequency	30 - 135 kHz
Display brightness (typical)	350 cd/m²
Supported graphics resolutions	3840 x 2160
Tilt angle range	-5 - 10 °
Number of OSD languages	17
Panel mounting interface	200 x 200 mm
On Screen Display (OSD) languages	DUT, ENG, ESP, FIN, FRE, ITA, POL, POR, RUS, SWE
HDMI version	1.4/2.0
DisplayPort version	1.2
HDMI ports quantity	4
USB Power Delivery up to	60 W
Cables included	RS-232, USB Type-C
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Energy efficiency scale	A to G
Power consumption (off)	0.3 W
Power consumption (standby)	- W
Power consumption (typical)	70 W
Sustainability certificates	RoHS
Certification	Reach
Product color	Black
Market positioning	Gaming
RMS rated power	10 W
Number of speakers	2
Harmonized System (HS) code	85285210