Owner's Manual
IPS LED MONITOR
(LED MONITOR*)
*LG LED Monitors are LCD Monitors with LED Backlighting.
Please read the safety information carefully before using the product.
IPS LED Monitor (LED Monitor) Model List
43UD79
43MU79
43UD79T
www.lg.com
2
Contents
ENGLISH
ENG
CONTENTS
3 LICENSE
4 ASSEMBLING AND PREPARING
4 Product Components
5 Supported Drivers and Software
6 Component and Button Description
6 - How to Use the Joystick Button
7 - How to Use the Joystick Button
8 Input Connector
10 Moving and Lifting the Monitor
11 Installing the Monitor
11 - Assembling the stand base
12 - Assembling the stand base
13 - Using the cable holder
14 - Installing onto a table
15 - Adjusting the angle
15 - Using the Kensington lock
16 - Installing the wall mount plate
16 - Installing to a wall
18 REMOTE CONTROL
20 - HDMI connection
21 Connecting Peripherals
21 - USB Cable connection - PC
22 Connecting to External Devices
22 - Connecting Headphones
23 USER SETTINGS
23 Activating the Main Menu
23 - Main Menu Features
24 User Settings
24 - Menu Settings
29 TROUBLESHOOTING
31 SPECIFICATIONS
31 43UD79 43MU79
32 43UD79T
33 Factory Support Mode (Preset Mode, PC)
33 HDMI
34 DisplayPort / USB-C
35 HDMI Timing (Video)
35 Power LED
19 USING THE MONITOR
19 Connecting to a PC
19 - HDMI connection
19 - DisplayPort connection
20 - USB-C connection
20 Connecting to AV Devices
36 EXTERNAL CONTROL DEVICE
SETUP
36 - Communication Parameters
36 - Transmission
36 - OK Acknowledgement
36 - Error Acknowledgement
37 - Command Reference List
LICENSE
3
LICENSE
Each model has different licenses. Visit www.lg.com for more information on the license.
The terms HDMI and HDMI High-Definition Multimedia Interface, and the HDMI logo
are trademarks or registered trademarks of HDMI Licensing LLC in the United States
and other countries.
VESA, VESA logo, DisplayPort compliance logo and DisplayPort compliance logo for
dual-mode source devices are all registered trademarks of the Video Electronics Standards Association.
The SuperSpeed USB Trident logo is a registered trademark of USB Implementers
Forum, Inc.
ENGLISH
ENG
The following content is only applied to the monitor which is sold in Europe market and which needs to meet the ErP
Directive:
* This monitor is set to be turned off automatically in 4 hours after you turned on display if there is no adjustment to
display.
* To make this setting be disabled, change the option to ‘Off’ in OSD menu of “Automatic Standby”.
ENGLISH
ENG
ASSEMBLING AND PREPARING
4
ASSEMBLING AND PREPARING
Product Components
Please check whether all the components are included in the box before using the product. If there are missing components, contact the retail store where you purchased the product. Note that the product and components may look
different from those shown here.
CD(Owner's Manual) /
Card
HDMI Cable
( This cable is not included
in all countries. )
Power Cord
( Depending on the country )
DisplayPort Cable
( This cable is not included in
all countries. )
Remote control,
Batteries (AAA)
USB C-C cable
( This cable is not included in
all countries. )
RS-232C Gender
( This gender is not included in all
countries. )
USB C-A Gender
( This gender is not included
in all countries. )
Stand Body
Stand Base 4 Screws
Stand Base
Cable Holder
Back Door 4 Screws
Cable Holder
ASSEMBLING AND PREPARING
CAUTION
Always use genuine components to ensure safety and product performance.
y
The product warranty will not cover damage or injury caused by the use of counterfeit components.
y
It is recommend that use the supplied components.
y
If you use generic cables not certified by LG, the screen may not display or there may be image noises.
y
NOTE
Note that the components may look different from those shown here.
y
Without prior notice, all information and specifications in this manual are subject to change to improve the
y
performance of the product.
To purchase optional accessories, visit an electronics store or online shopping site or contact the retail store
y
where you purchased the product.
5
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ENG
Supported Drivers and Software
Check the drivers and software supported by your product and refer to the manuals on the CD enclosed in the product
package.
Drivers and Software Installation Priority 43UD79,43MU79,43UD79T
Monitor Driver Recommended O
On Screen Control Recommended O
Dual Controller Optional O
Required and Recommended: You can download and install the latest version from the enclosed CD or from the
y
LGE website (www.lg.com).
Optional: You can download and install the latest version from the LGE website (www.lg.com).
y
ENGLISH
ENG
ASSEMBLING AND PREPARING
6
Component and Button Description
43UD79 43MU79
IR Receiver
y
Joystick Button
Power LED
On: power is on
y
Off: power is off
How to Use the Joystick Button
You can easily control the functions of the monitor by pressing the joystick button or moving it left/right with your
finger.
Basic Functions
Press the joystick button once with your finger to turn on the
monitor.
Press and hold the joystick button once with your finger to turn off the
monitor.
You can control the volume by moving the joystick button left/right.
◄/►
Power on
Power off
Volume
Control
y
NOTE
The joystick button is located at the bottom of the monitor.
y
ASSEMBLING AND PREPARING
7
43UD79T
IR Receiver
y
ENGLISH
ENG
Joystick Button
Power LED
On: power is on
y
Off: power is off
y
How to Use the Joystick Button
You can easily control the functions of the monitor by pressing the joystick button or moving it left/right with your
finger.
Basic Functions
Press the joystick button once with your finger to turn on the
monitor.
Press and hold the joystick button once with your finger to turn off the
monitor.
You can control the volume by moving the joystick button left/right.
◄/►
Power on
Power off
Volume
Control
NOTE
The joystick button is located at the bottom of the monitor.
y
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ASSEMBLING AND PREPARING
8
Input Connector
43UD79 43MU79
ASSEMBLING AND PREPARING
9
43UD79T
ENGLISH
ENG
ASSEMBLING AND PREPARING
10
ENGLISH
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Moving and Lifting the Monitor
When moving or lifting the monitor, follow these instructions to prevent the monitor from being scratched
or damaged and to ensure safe transportation regardless of its shape or size.
It is advisable to place the monitor in the original
y
box or packing material before attempting to
move it.
Before moving or lifting the monitor, disconnect
y
the power cord and all cables.
Hold the top and bottom of the monitor frame
y
firmly. Do not hold the screen itself.
CAUTION
As far as possible, avoid touching the monitor
y
screen. This may result in damage to the screen or
some of the pixels used to create images.
Or
When holding the monitor, the screen should face
y
away from you to prevent it being scratched.
When moving the monitor, avoid any strong shock
y
or vibrations to the product.
When moving the monitor, keep it upright, never
y
turn the monitor on its side or tilt it sideways.
If you use the monitor panel without the stand
y
base, its joystick button may cause the monitor to
become unstable and fall, resulting in damage to
the monitor or human injury. In addition, this may
cause the joystick button to malfunction.
Installing the Monitor
2
Assembling the stand base
43UD79 43MU79
Please put a soft cloth on a low table or box to
1
protect the screen of the monitor.
Please put the monitor on the soft cloth with the
2
screen facing down.
ASSEMBLING AND PREPARING
Assemble the Head and Back door.
4
CAUTION
11
ENGLISH
ENG
Assemble the Head and Stand body.
1
3
2 Assemble the Stand body and Stand base .
Turn the screw clockwise to secure the stand base.
To avoid injury to the fingers and foot when
y
Assembly Stand Body and Base, should hold
Base when assem-bly stand body and base.
Do not apply foreign substances (oils, lubricants,
y
etc.) to the screw parts when assembling the
product.
(Doing so may damage the product.)
ASSEMBLING AND PREPARING
12
ENGLISH
ENG
Assembling the stand base
43UD79T
Please put a soft cloth on a low table or box to
1
protect the screen of the monitor.
Please put the monitor on the soft cloth with the
2
screen facing down.
CAUTION
To avoid injury to the fingers and foot when
y
Assembly Stand Body and Base, should hold
Base when assem-bly stand body and base.
Do not apply foreign substances (oils, lubricants,
y
etc.) to the screw parts when assembling the
product.
(Doing so may damage the product.)
Assemble the Stand base and Head.
3
Turn the screw clockwise to secure the stand base.
CAUTION
Illustrations in this document represent typical
y
procedures, so they may look different from the
actual product.
Do not carry the monitor upside down by just
y
holding the stand base. This may cause the
monitor to fall off the stand and could result in
personal injury.
When lifting or moving the monitor, do not
y
touch the monitor screen. The force applied to
the monitor screen may cause damage to it.
Do not apply foreign substances (oils, lubricants,
y
etc.) to the screw parts when assembling the
product. (Doing so may damage the product.)
Applying excessive force when tightening screws
y
may cause damage to the monitor. Damage
caused in this way will not be covered by the
product warranty.
ASSEMBLING AND PREPARING
Using the cable holder
Arrange the cables using the cable holder as shown in
the illustration.
43UD79
43MU79
13
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ENG
NOTE
You can disassemble the stand in the reverse
y
order of the assembly.
43UD79T
Cable Holder
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ENG
ASSEMBLING AND PREPARING
14
Installing onto a table
Lift the monitor and place it on the table in an up-
1
right position.
Place at least 100 mm away from the wall to ensure
sufficient ventilation.
100 mm
100 mm
100 mm
100 mm
Connect the Power cord to the monitor, then plug
2
the power cord into the wall outlet.
Or
Or
100 mm
100 mm
100 mm
100 mm
Press the joystick button on the bottom of the
3
monitor to turn on the monitor.
CAUTION
Unplug the power cord prior to moving or install-
y
ing the monitor. There is risk of electric shock.
Cautions When Connecting Power Cord
100-240 V~
Make sure to use the power cord that is pro-
y
vided in the product package and connect it to a
grounded power outlet.
If you need another power cord, please contact
y
your local dealer or the nearest retail store.
ASSEMBLING AND PREPARING
15
Adjusting the angle
Place the monitor in an upright position, mounted
1
on the stand base.
Adjust the angle of the screen. The angle of the
2
screen can be adjusted forwards or backwards for a
comfortable viewing experience.
43UD79
WARNING
43MU79
Front SideRear Side
Or
Using the Kensington lock
The Kensington security system connector is located at
the back of the Monitor set.
For more information on installation and usage, refer to
the Kensington lock user manual or visit the website at
http://www.kensington.com.
Connect the Kensington security system cable between
the Monitor set and a table.
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ENG
To avoid injury to the fingers when adjusting the
y
screen, do not hold the lower part of the monitor's frame as illustrated below.
43UD79
Be careful not to touch or press the screen area
y
when adjusting the angle of the monitor.
43MU79
Or
NOTE
Use of the Kensington lock is optional.
y
The accessories can be purchased at your local
electronics store.
ASSEMBLING AND PREPARING
16
ENGLISH
ENG
Installing the wall mount plate
This monitor supports the specification of the standard
wall mount plate or compatible device.
Place the screen face down. To protect the screen
1
from scratches, cover the surface with a soft cloth.
Place the wall mount plate onto the monitor and
2
align it with the screw holes.
Tighten the four screws to fix the plate to the moni-
3
tor using a screwdriver.
NOTE
The wall mount plate is sold separately.
y
For more information on installation, refer to the
y
wall mount plate's installation guide.
Be careful not to use excessive force when
y
mounting the wall mount plate, as this can damage the monitor's screen.
Installing to a wall
Install the monitor at least 100 mm away from the wall
and leave about 100 mm of space at each side of the
monitor to ensure sufficient ventilation. Detailed installation instructions can be obtained from your local retail
store. Please refer to the manual to install and set up a
tilting wall mounting bracket.
100 mm
100 mm
100 mm
To install the monitor to a wall, attach a wall mounting
bracket (optional) to the back of the monitor.
Make sure that the wall mounting bracket is securely fixed
to the monitor and to the wall.
100 mm
1 If you use screw longer than standard, the monitor
might be damaged internally.
2 If you use improper screw, the product might be dam-
aged and drop from mounted position.
In this case, LG Electronics is not responsible for it.
Wall Mount (A x B) 200 x 200
Standard screw M6
Number of screws 4
Wall Mount Plate
(Optional)
LSW240B
ASSEMBLING AND PREPARING
17
Wall Mount (A x B)
y
A
B
CAUTION
Unplug the power cord before moving or installing
y
the monitor to avoid electric shocks.
Installing the monitor on the ceiling or on a slanted
y
wall may result in the monitor falling off, which
could lead to injury. Please use the genuine LG wall
mounting bracket. For more information, contact
your local retail store or a qualified installer.
Applying excessive force when fastening screws
y
may cause damage to the monitor. Damage caused
in this way will not be covered by the product warranty.
Use the wall mounting bracket and screws that
y
conform to the VESA standard. Damage caused
by the use or misuse of inappropriate components
will not be covered by the product warranty.
NOTE
Use the screws specified by the VESA standard.
y
The wall mount kit includes the installation guide
y
and all necessary parts.
The wall mounting bracket is optional. The acces-
y
sories can be purchased at your local retail store.
The length of the screw may differ for each wall
y
mounting bracket. Ensure the correct length
screw is used.
For more information, please refer to the user
y
manual for the wall mounting bracket.
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REMOTE CONTROL
/ /
/
18
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ENG
REMOTE CONTROL
The descriptions in this manual are based on the buttons on the remote control. Please read this manual carefully to
use the monitor correctly.
To install batteries, open the battery cover, place batteries (1.5 V AAA) matching and terminals to the labels
inside the compartment, and close the battery cover.
To remove the batteries, perform the installation actions in reverse. The illustrations may differ from the actual
accessories.
CAUTION
Do not mix old and new batteries, as this may
y
damage the remote control.
Be sure to point the remote control toward the
y
remote control sensor on the monitor.
The GAME MODE and PICTURE MODE are
y
disabled when PBP/PIP on
(POWER) Turns the monitor on or off.
INPUT Selects the input mode.
Volume Up/Down Button Adjusts the volume.
MUTE Mutes all sounds.
BRIGHTNESS Adjust the brightness by pressing the Up and
Down buttons on the remote control.
MENU Configures the screen setting
Configures the options by moving the up/down/left/right button
EXIT Exits the main menu
OK Selects menus or options and confirms your input.
GAME MODE Enters the Game features.
PICTURE MODE Selects the picture mode
PBP/PIP Change PBP/PIP mode
FULL SCREEN Converts the sub screen in PBP/PIP mode to wide
screen.
AUDIO SELECT Change the audio output in PBP/PIP mode
USING THE MONITOR
19
USING THE MONITOR
Connecting to a PC
This monitor supports the *Plug and Play feature.
y
*Plug and Play: A feature that allows you to add
a device to your computer without having to
reconfigure anything or install any manual drivers.
HDMI connection
Transmits the digital video and audio signals from your
PC and A/V devices to the monitor. Connect your PC
and AV device to the monitor with the HDMI cable as
illustrated below.
Press the menu button and then select the input option
from the input menu.
DisplayPort connection
Transmits the digital video and audio signals from your
PC to the monitor. Connect your PC to the monitor using the DisplayPort cable as illustrated below.
Press the menu button and then select the input option
from the input menu.
NOTE
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ENG
NOTE
If you use HDMI PC, it can cause compatibility
y
problem.
Use a certified cable with the HDMI logo attached.
y
If you do not use a certified HDMI cable, the
screen may not display or a connection error may
occur.
Recommended HDMI cable types
y
- High-Speed HDMI®/TM Cable
- High-Speed HDMI®/TM Cable with Ethernet
- HDMI 1/2 only support 4K@30Hz
- HDMI 3/4 can support 4K@60Hz
There may be no video or audio output depending
y
on the DP version of the PC.
If you use generic cables not certified by LG, the
y
screen may not display or there may be image
noises.
USING THE MONITOR
20
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USB-C connection
Transmits digital video and audio signals from your PC
to the monitor.
Connect the monitor to your PC using the USB C-C
cable as shown in the illustration below.
Press the menu button and then select the input option
from the input menu.
(USB C-C cable)
NOTE
Connecting to AV Devices
HDMI connection
Transmits the digital video and audio signals from your
PC and A/V devices to the monitor. Connect your PC
and AV device to the monitor with the HDMI cable as
illustrated below.
Press the menu button and then select the input option
from the input menu.
PD(Power Delivery) and DP Alternate Mode(DP
y
over USB-C) are supported via USB-C Port.
Features may not work properly depending on
y
the connected device’s specifications and the
environment.
USB-C port is not for the Monitor Power source
y
but for a PC power source.
Connect Adapter to supply power to the Monitor
(USB C-C cable +
USB C-A Gender)
(sold separately)
NOTE
Use a certified cable with the HDMI logo attached.
y
If you do not use a certified HDMI cable, the
screen may not display or a connection error may
occur.
Recommended HDMI cable types
y
- High-Speed HDMI®/TM Cable
- High-Speed HDMI®/TM Cable with Ethernet
- HDMI 1/2 only support 4K@30Hz
- HDMI 3/4 can support 4K@60Hz
Connecting Peripherals
USB Cable connection - PC
The USB port on the product functions as a USB hub.
Please connect the USB C-C cable to the PC.
NOTE
Make sure to install the most recent Windows OS
y
service pack before using the product.
Peripheral devices are sold separately.
y
A keyboard, mouse, or USB device can be
y
connected to the USB port.
Quick Charge is available through the USB1 port
y
The charging speed may vary depending on the
y
device.
USING THE MONITOR
The items supplied with your product may vary
y
depending on the model.
Product specifications or contents of this manual
y
may be changed without prior notice due to
upgrade of product functions.
For an optimal connection, HDMI cables and USB
y
devices should have bezels less than 10 mm thick
and 18 mm width.
Use an extension cable that supports USB2.0 or
y
3.0 if the USB cable or USB memory stick does
not fit into Your Monitor USB port.
10 mm
18 mm
21
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ENG
(sold separately)
CAUTION
Cautions When Using a USB Device
A USB device with an automatic recognition
y
program installed, or that uses its own driver, may
not be recognized.
Some USB devices may not be supported or may
y
not work properly.
It is recommended to use a USB hub or hard disk
y
drive with power supplied. (If the power supply
is not adequate, the USB device may not be
recognized properly.)
If the USB C-C cable is not connected with Host
y
PC, monitor may not support ‘Charge’ .
Use a certified cable with the HDMI logo attached.
y
If you do not use a certified HDMI cable, the
screen may not display or a connection error may
occur.
Recommended HDMI cable types
y
- High-Speed HDMI®/™ cable
- High-Speed HDMI®/™ cable with Ethernet
ENGLISH
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USING THE MONITOR
22
Connecting to External Devices
Connecting Headphones
Connect peripherals to the monitor via the headphones
port. Connect as illustrated.
(sold separately)
NOTE
Peripheral devices are sold separately.
y
If you use angled earphones, it may cause a prob-
y
lem with connecting another external device to
the monitor. Therefore, it is recommended to use
straight earphones.
Angled Straight
Depending on the audio settings of the PC and
y
external device, headphones and speaker functions
may be limited.
User Settings
23
USER SETTINGS
Activating the Main Menu
Press the joystick button on the bottom of the monitor.
1
Move the joystick up/down (▲/▼) and left/right(◄/►) to set the options.
2
Press the joystick button once more to exit the main menu.
3
Joystick Button
Button Menu Status Description
Main menu disabled Enables the main menu.
Main menu enabled
Main menu disabled Adjusts the monitor volume level.
◄
Main menu enabled Enters the Input feature.
Main menu disabled Adjusts the monitor volume level.
►
Main menu enabled Enters the Menu features.
Main menu disabled Displays information on the current input.
▲
Main menu enabled Turns off the monitor.
Main menu disabled Displays information on the current input.
▼
Main menu enabled Enters the Game features.
Exits the main menu.
(Holding down the button to turn off the monitor. You can turn off the
monitor this way at any time, including when the OSD is on.)
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Main Menu Features
Power Off
MenuInput Exit
Game Mode
Main Menu Description
Menu Configures the screen settings.
Game Mode You can change Picture Mode to a gaming mode.
Input Sets input mode.
Power Off Turns off the monitor.
Exit Exits the main menu.
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User Settings
24
User Settings
Menu Settings
To view the OSD menu, press the joystick button at the bottom of the monitor and then enter the Menu.
1
Configure the options by moving the joystick up/down/left/right.
2
To return to the upper menu or set other menu items, move the joystick to◄ or pressing ( / Ok) it.
3
If you want to exit the OSD menu, move the joystick to ◄ until you exit.
4
When you enter the menu, instructions on how to use the button will appear in the bottom right corner of the screen.
y
Quick Settings Input Picture General
CAUTION
Your monitor’s OSD (On Screen Display) may differ slightly from that shown in this manual.
y
Each option is described below.
Menu > Quick Settings Description
Brightness
Contrast
Volume Adjusts the volume level.
Adjusts the color contrast and brightness of the screen.
NOTE
You can adjust Mute / Unmute by moving the joystick button to▼in the Volume menu.
y
[PBP/PIP OFF]
Menu > Input Description
Input List Selects the input mode.
Aspect Ratio Adjusts the aspect ratio of the screen.
Full Wide Displays the video in wide-screen, regardless of the video signal input.
Original Displays video according to the aspect ratio of the video signal input.
1:1 The aspect ratio is not adjusted from the original.
NOTE
The display may look the same for Full Wide , Original, and 1:1 options at the recommended resolu-
y
tion (3840 x 2160).
Underscan Reduce the display area
PBP/PIP You can select the various PBP or PIP combination.
[PBP/PIP ON]
Menu > Input Description
Input List Displays the screens of main input and sub input
Aspect Ratio Adjusts the aspect ratio of the screen.
Main input Full Wide Displays the video to fit the PBP/PIP screen, regardless of the video signal
input.
Original Displays the video in the aspect ratio of the video signal input on the PBP/PIP
screen.
Sub input Full Wide Displays the video to fit the PBP/PIP screen, regardless of the video signal
input.
Original Displays the video in the aspect ratio of the video signal input on the PBP/PIP
screen.
Underscan Reduce the display area
PBP/PIP You can select the various PBP or PIP combination
PIP Size Sets the size of the PIP Sub window. ( Small/Medium/Large )
Transparency Sets the opacity of PIP
Sound Out Select the audio output in PBP/PIP mode
User Settings
25
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NOTE
If not using the PBP/PIP feature, PIP Size, Transparency and Sound Out are deactivated.
y
Each option is described below.
Menu > Picture Description
Picture Mode Custom Allows the user to adjust each element. The color mode of the main menu can be adjusted.
Reader Optimizes the screen for viewing documents. You can brighten the screen in the OSD menu.
Photo Optimizes the screen for photos.
Cinema Optimizes the screen for video.(This mode raises vividness when use the Set-top Box.)
Dark Room 1 This mode adjusts the brightness to the optimal level for working in a dark environment.
Dark Room 2 This mode sets the brightness to a lower level than Dark Room 1.
Color Weakness This mode is for users who cannot distinguish between red and green. It enables users with
FPS Game 1 This mode is optimized for FPS games.
FPS Game 2 It has a higher Black Stabilizer value than FPS Game 1. It is suitable for very dark FPS games.
RTS Game This mode is optimized for RTS Game.
Custom (Game) In this mode, users can customize various elements including game-related options.
color weakness to easily distinguish between the two colors.
NOTE
If the picture mode is changed in the DP (DisplayPort) input, the screen may flicker or the resolution of your PC screen may be
y
affected.
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User Settings
26
Picture Adjust Brightness Adjusts the brightness of the screen.
Contrast Adjusts the contrast of the screen.
Sharpness Adjusts the sharpness of the screen.
SUPER
RESOLUTION+
High Optimized picture quality is displayed when a user wants crystal clear images. It
is effective for high quality video or game.
Middle The optimized picture quality is displayed when a user wants images between
low and high modes for comfortable viewing. It is effective for UCC or SD video.
Low The optimized picture quality is displayed when a user wants smooth and natural images.
It is effective for slow-moving pictures or still images.
Off Select this option for everyday viewing. SUPER RESOLUTION+ is turned off in
this mode.
NOTE
Because this is a function to increase the sharpness of low resolution pictures, it is not
y
recommended to use the function for normal text or for desktop icons. Doing so may
result in unnecessarily high sharpness.
Black Level Sets the offset level (for HDMI only).
HDMI ULTRA HD
Deep Color
yOffset: as a reference for a video signal, this is the darkest color the monitor can display.
High Keeps the current contrast ratio of the screen.
Low Lowers the black levels and raises the white levels from the current contrast
Provides sharper images when connected to a device supporting ULTRA HD Deep Color.
Resolution
3840 x 2160
1) Supported when HDMI ULTRA HD Deep Color is set to On.
ratio of the screen.
Frame rate
(Hz)
59.94
60.00
4K@60 Hz Support Format
Color Depth / Chroma Sampling
8 bit 10 bit
YCbCr 4:2:0
YCbCr 4:4:4 -
RGB 4:4:4 -
1)
NOTE
If the connected device does not support ULTRA HD Deep Color, the feature may not
y
work properly.
If a problem occurs, set the HDMI ULTRA HD Deep Color option to Off.
y
DFC On Adjusts the brightness automatically according to the screen.
Off Disables the DFC feature.
Game Adjust Response Time Sets a response time for displayed pictures based on the speed of the screen.
Black Stabilizer You can control the black contrast to have better visibility in dark scenes.
For a normal environment, it is recommended that you use Normal. For a fast-moving picture,
it is recommended that you use Fast.
Setting to Fast may cause image sticking.
Fast Sets the response time to Fast.
Normal Sets the response time to Normal.
Slow Sets the response time to Slow.
Off Does not use the response time improvement feature.
Increasing the Black Stabilizer value brightens the low gray level area on the screen. (You
can easily distinguish objects on dark game screens.)
Reducing the Black Stabilizer value darkens the low gray level area and increases the dynamic contrast on the screen.
User Settings
27
Color Adjust Gamma Mode 1, Mode 2,
Mode 3
Mode 4 If you do not need to adjust the gamma settings, select Mode 4.
Color Temp Custom The user can adjust it to red, green, or blue by customization.
Warm Sets the screen color to a reddish tone.
Medium Sets the screen color between a red and blue tone.
Cool Sets the screen color to a bluish tone.
Red You can customize the picture color using Red, Green, and Blue colors.
Green
Blue
Six Color Meets the user requirements for colors through adjusting the color and saturation of the six
colors(Red_Hue, Red_Saturation, Green_Hue, Green_Saturation, Blue_Hue, Blue_Saturation, Cyan_Hue, Cyan_Saturation, Magenta_Hue, Magenta_Saturation, Yellow_Hue,
Yellow_Saturation) and saving the settings.
Hue Adjusts the tone of the screen colors.
Saturation Adjusts the saturation of the screen colors. The lower the value, the
Picture Reset Do you want to reset your settings?
Yes Returns to the default settings.
No Cancel the select.
The higher the gamma value, the darker the image becomes. Likewise, the
lower the gamma value, the lighter the image becomes.
less saturated and brighter the colors become. The higher the value, the
more saturated and darker the colors become.
ENGLISH
ENG
ENGLISH
ENG
User Settings
28
Menu > General Description
Language Sets the menu screen to the desired language.
Sound Optimizer Allows optimized sound for individual Monitor installation.
Stand Type Optimized sound for a stand-mounted Monitor.
Wall Mount Type Optimized sound for a wall-mounted Monitor.
SMART ENERGY
SAVING
Set ID You can choose the Set ID 01~Set ID 10
Power LED Turns the power LED on the bottom of the monitor on or off.
Automatic Standby Feature that automatically turns off the monitor when there is no movement on the screen for a period of
DisplayPort 1.2 Enables or disables DisplayPort 1.2.
High Saves energy using the high-efficiency SMART ENERGY SAVING feature.
Low Saves energy using the low-efficiency SMART ENERGY SAVING feature.
Off Disables the SMART ENERGY SAVING feature.
On The power LED turns on automatically.
Off The power LED turns off.
time. You can set a timer for the auto-off function. (Off, 4 H, 6 H, and 8 H)
NOTE
Be sure to configure this option according to the DisplayPort version supported by your
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graphics card. Set this option to Disable if your graphics card does not support DisplayPort 1.2.
Buzzer This feature lets you set the sound generated from Buzzer when your monitor powers on.
On Enables your monitor's Buzzer.
Off Disables your monitor's Buzzer.
Quick Charge Quick Charge is a feature that rapidly charges the device connected to the USB 1 port.
On Enables Quick Charge.
Off Disables Quick Charge.
OSD Lock This feature disables the configuration and adjustment of menus.
On Enables OSD Lock.
Off Disables OSD Lock.
NOTE
All features are disabled except Brightness, Contrast, Volume, Input, OSD Lock in General and
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the Exit button.
OSD Size User can select OSD Size to Large or Small.
Reset Do you want to reset your settings?
Yes Returns to the default settings.
No Cancel the select.
NOTE
Saving Data depends on the Panel. So, these values may be different from each panel and/or panel vendor. If the SMART EN-
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ERGY SAVING option is High or Low, monitor luminance become higher or lower depending on the source.
TROUBLESHOOTING
29
TROUBLESHOOTING
Nothing is displayed on the screen.
Is the monitor's power cord plugged in?
Is the power LED on?
Is the power on and the power LED
displaying white?
Is the OUT OF RANGE message being
displayed?
Is the No Signal message being
displayed?
The OSD lock message is being displayed.
Are some functions not available when
you press the Menu button?
The screen retains an image.
Does image sticking occur even when
the monitor is turned off?
Check if the power cord is correctly plugged into the power outlet.
y
Check the power cable connection and press the power button.
y
Check that the connected input is enabled (Menu > Input > Input list).
y
This occurs when signals transferred from the PC (graphics card) are out
y
of the horizontal or vertical frequency range of the monitor. Please see
the Product Specification section of this manual to set the appropriate
frequency.
This is displayed when the signal cable between the PC and the monitor is
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missing or disconnected. Check the cable and reconnect it.
The OSD is locked. Go to Menu > General and set OSD Lock to Off.
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Displaying a still image for a prolonged time may cause damage to the
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screen, resulting in the retention of the image.
To extend the lifetime of the monitor, use a screensaver.
y
ENGLISH
ENG
Screen display is unstable and shaky / Images displayed on the monitor leave shadow trails.
Did you select the appropriate
resolution?
If the selected resolution is HDMI 1080i 60/50 Hz (interlaced), the screen
y
may be flickering. Change the resolution to 1080P or the recommended
resolution.
NOTE
Vertical frequency In order to display an image, the screen must be refreshed dozens of times per second, like a fluorescent
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lamp. The number of times the screen is refreshed per second is called vertical frequency, or refresh rate, and is represented by
Hz.
Horizontal frequency The time it takes to display one horizontal line is called the horizontal cycle. If 1 is divided by the
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horizontal interval, the result is the number of horizontal lines displayed per second. This is called horizontal frequency and is
represented by kHz.
LED can be lighted with Set OSD Menu.
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Menu – General – Power LED – On
ENGLISH
ENG
TROUBLESHOOTING
30
NOTE
Check if the graphics card's resolution or frequency is within the range allowed by the monitor and set it to the
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recommended (optimal) resolution in Control Panel > Display > settings.
Not setting the graphics card to the recommended (optimal) resolution may result in blurred text, a dimmed
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screen, a truncated display area, or misalignment of the display.
The setting methods may be different depending on the computer or operating system, and some resolutions
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may not be available depending on the performance of the graphics card. If this is the case, contact the
manufacturer of the computer or graphics card for assistance.
Some graphics cards may not support 3840 x 2160 resolution. If the resolution cannot be displayed, contact the
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manufacturer of your graphics card.
The display color is abnormal.
Does the display appear discolored (16
colors)?
Does the display color appear unstable
or monochrome?
Are there spots on the screen?
Set the color to 24 bit (true color) or higher. In Windows, go to Control
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Panel > Display > Settings > Color Quality.
Check if the signal cable is connected properly. Reconnect the cable or
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reinsert the PC's graphics card.
When using the monitor, pixilated spots (red, green, blue, white, or black)
y
may appear on the screen. This is normal for an LCD screen. It is not an
error, nor is it related to the monitor's performance.
Do you see an "Unrecognized monitor, Plug&Play (VESA DDC) monitor found" message?
Have you installed the display driver?
Be sure to install the display driver from the display driver CD (or diskette)
y
that comes with your display. Or, you can also download the driver from
our web site: http://www.lg.com.
Make sure to check if the video card supports Plug&Play function.
y
No sound from the headphone port or speaker.
Are images displayed using DisplayPort
or HDMI input without sound?
Try increasing the volume using the button on the monitor.
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Set the audio output of the PC to the monitor you are using. On Microsoft
y
Windows, go to Control Panel > Hardware and Sound > Sound > set the
monitor as default device.
SPECIFICATIONS
31
SPECIFICATIONS
43UD79 43MU79
LCD Screen Type TFT (Thin Film Transistor)
LCD (Liquid Crystal Display) Screen
Pixel Pitch 0.2451 mm x 0.2451 mm
Resolution Maximum Resolution HDMI IN 1/2 : 3840 x 2160 @ 30 Hz
HDMI IN 3/4 : 3840 x 2160 @ 60 Hz
DP IN (USB-C IN) : 3840 x 2160 @ 60 Hz
Recommended Resolution HDMI IN 1/2 : 3840 x 2160 @ 30 Hz
HDMI IN 3/4 : 3840 x 2160 @ 60 Hz
DP IN (USB-C IN) : 3840 x 2160 @ 60 Hz
Video Signal
Input Connector HDMI1,2,3,4, DP(DisplayPort) IN, H/P, USB-C, USB ( ) 1/2, RS-232C
Power input 100 - 240 V~ 50/60 Hz 1.5 A
Power
consumption (Typ.)
Environmental
Conditions
Dimension Monitor Size (Width x Height x Depth)
Weight (Without
Packaging)
Horizontal Frequency 30 kHz to 135 kHz
Vertical Frequency 56 Hz to 61 Hz
On mode: 70 W Typ. (Outgoing condition)*
Sleep Mode ≤ 0.5 W
Off Mode ≤ 0.3 W
Operating Condition Temperature: 0°C to 40°C; Humidity: < 80%
Storing Condition Temperature: -20°C to 60°C; Humidity: < 85%
With Stand 967 mm x 647.6 mm x 275 mm
Without Stand 967 mm x 575.2 mm x 70.6 mm
With Stand 15.9 kg
Without Stand 12.3 kg
ENGLISH
ENG
The specifications are subject to change without notice.
* The power consumption level can be different by operating condition and monitor setting.
* The On mode power consumption is measured with LGE test standard (Full White pattern, Maximum resolution).
ENGLISH
ENG
SPECIFICATIONS
32
43UD79T
LCD Screen Type TFT (Thin Film Transistor)
LCD (Liquid Crystal Display) Screen
Pixel Pitch 0.2451 mm X 0.2451 mm
Resolution Maximum Resolution HDMI IN 1/2 : 3840 x 2160 @ 30 Hz
HDMI IN 3/4 : 3840 x 2160 @ 60 Hz
DP IN (USB-C IN) : 3840 x 2160 @ 60 Hz
Recommended Resolution HDMI IN 1/2 : 3840 x 2160 @ 30 Hz
HDMI IN 3/4 : 3840 x 2160 @ 60 Hz
DP IN (USB-C IN) : 3840 x 2160 @ 60 Hz
Video Signal
Input Connector HDMI1,2,3,4, DP(DisplayPort) IN, H/P, USB-C, USB ( ) 1/2, RS-232C
Power input 100 - 240 V~ 50/60 Hz 1.5 A
Power
consumption (Typ.)
Environmental
Conditions
Dimension Monitor Size (Width x Height x Depth)
Weight (Without
Packaging)
Horizontal Frequency 30 kHz to 135 kHz
Vertical Frequency 56 Hz to 61 Hz
On mode: 70 W Typ. (Outgoing condition)*
Sleep Mode ≤ 0.5 W
Off Mode ≤ 0.3 W
Operating Condition Temperature: 0°C to 40°C; Humidity: < 80%
Storing Condition Temperature: -20°C to 60°C; Humidity: < 85%
With Stand 967 mm x 624.1 mm x 233 mm
Without Stand 967 mm x 575.2 mm x 70.6 mm
With Stand 13.0 kg
Without Stand 12.8 kg
The specifications are subject to change without notice.
* The power consumption level can be different by operating condition and monitor setting.
* The On mode power consumption is measured with LGE test standard (Full White pattern, Maximum resolution).
Factory Support Mode (Preset Mode, PC)
HDMI
SPECIFICATIONS
33
ENGLISH
ENG
Display Modes (Resolution)
640 x 480 31.469 59.94 -/-
800 x 600 37.879 60.317 +/+
1024 x 768 48.363 60 -/-
1152 x 864 54.347 60.05 +/+
1280 x 720 45 60 +/+
1280 x 1024 63.981 60.02 +/+
1600 x 900 60 60 +/+
1920 x 1080 67.5 60 +/-
2560 x 1440 88.79 59.95 +/-
3840 x 2160 67.5 30 +/-
3840 x 2160 135 60 +/-
Horizontal
Frequency(kHz)
Vertical
Frequency(Hz)
Polarity(H/V) Remarks
When HDMI ULTRA HD Deep
Color is set to ON.
ENGLISH
ENG
SPECIFICATIONS
34
DisplayPort / USB-C
Display Modes (Resolution)
640 x 480 31.469 59.94 -/-
800 x 600 37.879 60.317 +/+
1024 x 768 48.363 60 -/-
1152 x 864 54.347 60.05 +/+
1280 x 720 45 60 +/+
1280 x 1024 63.981 60.02 +/+
1600 x 900 60 60 +/+
1920 x 1080 67.5 60 +/-
2560 x 1440 88.79 59.95 +/-
3840 x 2160 66.66 30 +/-
3840 x 2160 133.32 60 +/-
Horizontal
Frequency(kHz)
Vertical
Frequency(Hz)
Polarity(H/V) Remarks
HDMI Timing (Video)
Factory support mode
(Preset Mode)
480p 31.5 60
720p 45.0 60
1080p 67.5 60
2160p 135 60
Horizontal
Frequency(kHz)
Vertical
Frequency(Hz)
Power LED
Mode LED Color
On Mode White (For a few seconds)
Sleep Mode Off
Off Mode Off
SPECIFICATIONS
Remarks
When HDMI ULTRA HD Deep Color is
set to ON.
35
ENGLISH
ENG
EXTERNAL CONTROL DEVICE SETUP
Communication Parameters
Baud rate : 9600 bps (UART)
Data length : 8 bits
Parity : None
Stop bit : 1 bit
Communication code : ASCII code
Use a crossed (reverse) cable.
Transmission
[Command1][Command2][ ][Set ID][ ][Data][Cr]
* [Command 1] : First command to control the Monitor.
* [Command 2] : Second command to control the Monitor.
* [Set ID] : You can adjust the set ID to choose desired monitor ID number in optionmenu.
Adjustment range is 1 ~ 10.
When selecting Set ID ‘0’, every connected set is controlled.
Set ID is indicated as decimal (1~10) on menu and as Hexa decimal (0x0~0x0A) on
transmission/receiving protocol.
* [DATA] : To transmit command data.
* [Cr] : Carriage Return
ASCII code ‘0x0D’
* [ ] : ASCII code ‘space (0x20)’
[Command1][Command2][ ][Set ID][ ][Data][Cr]
OK Acknowledgement
[Command2][ ][Set ID][ ][OK][Data][x]
* The Monitor transmits ACK (acknowledgement) based on this format when receiving normal data. At this time, if the
data is in data read mode, it indicates present status data. If the data is in data write mode, it returns the data of the
PC computer.
Error Acknowledgement
[Command2][ ][Set ID][ ][NG][Data][x]
* The Monitor transmits ACK (acknowledgement) based on
this format when receiving abnormal data from
nonviable functions or communication errors.
Command Reference List
Title Command 1 Command 2 Data(Hex)
Power k a 00 ~ 01
Screen Mute k d 00 ~ 01
Input select (Main) x b 00 ~ FF
Input select (Sub) x c 00 ~ FF
Input select (Sub2) x d 00 ~ FF
Input select (Sub3) x e 00 ~ FF
Aspect Ratio (Main) x f 00 ~ 02
Aspect Ratio (Sub) x g 00 ~ 01
Aspect Ratio (Sub2) x h 00 ~ 01
Aspect Ratio (Sub3) x i 00 ~ 01
PBP/PIP k n 00 ~ 09
PIP Size k p 00 ~ 02
Main/Sub Screen Change m a 01
Picture Mode d x 00 ~ 14
Brightness k h 00 ~ 64
Contrast k g 00 ~ 64
Sharpness k k 00 ~ 64
Brightness Stabilization m b 00 ~ 01
SUPERRESOLUTION+ m c 00 ~ 03
BlackLevel m d 00 ~ 01
HDMIULTRAHD DeepColor m e 00 ~ 01
DFC m f 00 ~ 01
Response Time m g 00 ~ 03
Black Stablilzer m h 00 ~ 64
Uniformity m i 00 ~ 01
Gamma m j 00 ~ 09
Color Temp k u 00 ~ 04
Red Gain j w 00 ~ 64
Green Gain j y 00 ~ 64
Blue Gain j z 00 ~ 64
Language f i 00 ~ 10
SMART ENERGY SAVING m k 00 ~ 02
LED Control Button m l 00 ~ 03
DVI Power Supply m m 00 ~ 01
Auto Screen Off m n 00 ~ 01
DisplayPort1.2 m o 00 ~ 01
OSDLock k m 00 ~ 01
Reset f k 00 ~ 01
Title Item
Power 00: Power Off, 01: Power On
Screen Mute 00: Screen Mute Off, 01: Screen Mute On
Input select (Main) 90:HDMI1, 91:HDMI2, 92:HDMI3, 93:HDMI4, C0:DP, E0:USB-C
Input select (Sub) 90:HDMI1, 91:HDMI2, 92:HDMI3, 93:HDMI4, C0:DP, E0:USB-C
Input select (Sub2) 90:HDMI1, 91:HDMI2, 92:HDMI3, 93:HDMI4, C0:DP, E0:USB-C
Input select (Sub3) 90:HDMI1, 91:HDMI2, 92:HDMI3, 93:HDMI4, C0:DP, E0:USB-C
Aspect Ratio (Main) 00:Full Wide, 01:Original, 02: "1 : 1", 03:Cinema1, 04:Cinema2
Aspect Ratio (Sub) 00:Full Wide, 01:Original
Aspect Ratio (Sub2) 00:Full Wide, 01:Original
Aspect Ratio (Sub3) 00:Full Wide, 01:Original
PBP/PIP 00:OFF, 01:PBP, 02:PBP2, 03:PIP_LT, 04:PIP_RT, 05:PIP_LB,
06:PIP_RB,07:PBP_3P(NA), 08:PBP_L1P_R2P(NA), 09:PBP_4P
PIP Size 00:Small, 01:Medium, 02:Large
Main/Sub Screen Change 01: Main/Sub Screen exchange
Picture Mode 00:custom, 01:mono, 02:Reader, 04:Photo, 05:Cinema,
06:sRGB, 07:Color Weakness, 08:Game, 09:FPS Game1, 0A:FPS Game2,
0B:RTS Game, 0C:Custom Game, 0D:EBU, 0E:REC 709, 0F:SMPTE C,
10:DICOM, 11:Calibration1, 12:Calibration2, 13:DarkRoom1,
14:DarkRoom2,
Brightness 0 ~ 64 (Hex)
Auto Brightness : Backlight Stabilization On
※
Contrast
Sharpness 0 ~ 64 (Hex)
Brightness Stabilization 00: Off, 01: On
SUPERRESOLUTION+ 00: High, 01:Middle, 02:Low, 03:Off
BlackLevel 00:High, 01:Low
HDMIULTRAHD DeepColor 00: On, 01: Off
DFC 00: On, 01: Off
Response Time 00:Fast, 01:Normal, 02:Slow, 03:Off
Black Stablilzer 0 ~ 64 (Hex)
Uniformity 00: On, 01: Off
Gamma 00:Mode4, 01:Mode1, 02:Mode2, 03Mode3, 04:Gamma 1.8,
Color Temp 00:Manual, 01:Custom, 02:WARM, 03:MEDIUM, 04:COOL
Red Gain 0 ~ 64 (Hex)
Green Gain 0 ~ 64 (Hex)
Blue Gain 0 ~ 64 (Hex)
Language 00:Eng, 01:Ger, 02:Fre, 03:Spa, 04:Ita, 05:Swe, 06:Fin, 07:Por,
SMART ENERGY SAVING 00:High, 01:Low, 02:Off
LED Control Button 00:Always On, 01:20sec Time out,
DVI Power Supply 00: On, 01: Off
Auto Screen Off 00: On, 01: Off
DisplayPort1.2 00:Enable, 01:Disable,
OSDLock 00: Off, 01: On
Reset 00: Picture Reset, 01:Factory Reset
0 ~ 64 (Hex)
05:Gamma 2.0, 06:Gamma 2.2, 07:Gamma 2.4, 08:Gamma 2.6, 09:DICOM Gamma
08:Bra, 09:Pol, 0A:Rus, 0B:Grc, 0C:Ukr, 0D:Chi, 0E:ChiT, 0F:Jap,
10:Kor
02:10sec Time out, 03:5sec Time out
NOTE
Some commands are not supported according to model.
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Declaration of Conformity
Trade Name: LG
Model : 43UD79, 43MU79, 43UD79T
Responsible Party: LG Electronics Inc.
Address : 1000 Sylvan Ave. Englewood Cliffs
NJ 07632 U.S.A
TEL: 201-266-2534
*above information is only for USA FCC Regulatory
This device meets the EMC requirements for home
appliances (Class B) and is intended for home usage.
This device can be used in all regions. Read the
owner's manual (CD) carefully and keep it at hand.
Please note that the label attached to the product
provides information for technical support.
MODEL
SERIAL
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