LG 20MK400H-B Owner’s Manual

OWNER'S MANUAL

LED LCD Monitor

(LED Monitor*)

*LG LED Monitors are LCD Monitors with LED Backlighting.

Please read this manual carefully before operating your set and retain it for future reference.

LED LCD MONITOR MODEL

20MK4 series

22MK4 series

24MK4 series

27MK4 series

www.lg.com

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CONTENTS

LICENSE-----------------------------	3
ASSEMBLING AND PREPARING--	4
--Product Components---------------------------	4
--Supported Drivers and Software---------------	5
--Component and Button Description-----------	6
How to Use the Joystick Button
Input Connector
--Moving and Lifting the Monitor----------------	8
--Setting up the Monitor set --------------------	9
Attaching the Stand Base
Mounting on a table
Mounting on a wall
USING THE MONITOR SET------	14
--Connecting to a PC----------------------------	14
D-SUB connection
HDMI connection
--Connecting to AV Devices---------------------	15
HDMI connection
--Connecting Peripherals------------------------	15
Connecting Headphones
CUSTOMIZING SETTINGS-------	16
TROUBLESHOOTING-------------	21
SPECIFICATIONS‌ -----------------	22
--Preset Modes (Resolution)--------------------	26
PROPER POSTURE ---------------	27

- Proper Posture -----------------------------------

27

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 Administrator, Inc. in the United States and other countries.

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”.

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ASSEMBLING AND PREPARING

( Images may vary depending on models)

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) /		HDMI Cable		D-SUB Cable
	Card		( Depending on the country )		( Depending on the country )
( Depending on the country )

		or
Power Cord	AC-DC Adapter
( Depending on the country )		AC-DC Adapter
		( Depending on the country )

20MK4 series22MK4 series24MK4 series

2 Screws

Stand Base

Stand Body

27MK4 series

Stand Base

Stand Body

5

CAUTION

yyAlways use genuine components to ensure safety and product performance.

yyThe product warranty will not cover damage or injury caused by the use of counterfeit components. yyIt is recommend that use the supplied components.

yyIf you use generic cables not certified by LG, the screen may not display or there may be image noises.

NOTE

yyNote that the components may look different from those shown here.

yyWithout prior notice, all information and specifications in this manual are subject to change to improve the performance of the product.

yyTo purchase optional accessories, visit an electronics store or online shopping site or contact the retail store where you purchased the product.

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.

			20MK4 series
	Drivers and Software	Installation Priority	22MK4 series
			24MK4 series
			27MK4 series
	Monitor Driver	Recommended	O
	OnScreen Control	Recommended	O

yyRequired and Recommended: You can download and install the latest version from the enclosed CD or from the LGE website (www.lg.com).

yyOptional: You can download and install the latest version from the LGE website (www.lg.com).

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Component and Button Description

( Images may vary depending on models)

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Joystick Button

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

							Power on	Press the joystick button once with your finger to turn on the
								monitor.
							Power off	Press and hold the joystick button once with your finger to turn off the
								monitor.
						◄/►	Volume	You can control the volume by moving the joystick button left/right.
							Control	(for HDMI only)

NOTE

yyThe joystick button is located at the bottom of the monitor.

Input Connector

( Images may vary depending on models)

Connection panel (See p.14~15)

7

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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.

yyIt is advisable to place the monitor in the original box or packing material before attempting to move it. yyBefore moving or lifting the monitor, disconnect the

power cord and all cables.

yyHold the top and bottom of the monitor frame firmly. Do not hold the panel itself.

( Images may vary depending on models)

yyWhen holding the monitor, the screen should face away from you to prevent it being scratched.

yyWhen moving the monitor, avoid any strong shock or vibrations to the product.

yyWhen moving the monitor, keep it upright, never turn the monitor on its side or tilt it sideways.

CAUTION

yyAs far as possible, avoid touching the monitor screen. This may result in damage to the screen or some of the pixels used to create images.

yyIf you use the monitor panel without the stand 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.

Setting up the Monitor set

( Images may vary depending on models)

Attaching the Stand Base

20MK4 series

22MK4 series

24MK4 series

1Place the Monitor set with the screen side down on a flat and cushioned suface.

CAUTION

ŸTo protect the screen from scratches, cover the surface with a soft cloth.

2 Attach the Stand Body to the monitor set.

3 Tighten the screw.

9

4 Tighten the screw to the right with a coin.

27MK4 series

1Place the Monitor set with the screen side down on a flat and cushioned suface.

CAUTION

ŸTo protect the screen from scratches, cover the surface with a soft cloth.

2Attach the Stand Body to the monitor set.

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screw torque :10~12kgf

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3 Tighten the screw.

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screw torque :10~12kgf

4 Tighten the screw to the right with a coin.

WARNING

yyTo avoid injury to the fingers and foot when Assembly Stand Body and Base, should hold Base when assembly stand body and base.

CAUTION

yyIllustrations in this document represent typical procedures, so they may look different from the actual product.

yyDo not carry the monitor upside down by just holding the stand base. This may cause the monitor to fall off the stand and could result in personal injury.

yyWhen lifting or moving the monitor, do not touch the monitor screen. The force applied to the monitor screen may cause damage to it.

yyDo not apply foreign substances (oils, lubricants, etc.) to the screw parts when assembling the product. (Doing so may damage the product.) yyApplying excessive force when tightening screws

may cause damage to the monitor. Damage caused in this way will not be covered by the product warranty.

NOTE

yyYou can disassemble the stand in the reverse order of the assembly.

Mounting on a table

( Images may vary depending on models)

1Lift and tilt the Monitor set into its upright position on a table.

Leave a 100 mm (minimum) space from the wall for proper ventilation.

100 mm

100 mm

100 mm

100 mm

2Connect the AC-DC Adapter and Power Cord to a wall outlet.

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3Press the joystick button on the bottom of the monitor to turn on the monitor.

CAUTION

yyUnplug the power cord prior to moving or installing the monitor. There is risk of electric shock.

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or

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WARNING

When you adjust the angle, do not hold the bottom of the Monitor set frame as shown on the following illustration, as may injure your fingers.

NOTE

The angle of the screen can be adjusted forward or backward from -5° to 20° for a comfortable viewing experience.

20

Do not touch or press the screen when adjusting the	Front	Rear
angle of the monitor.

Do not hold this set like below picture.Monitor screen can detach from stand base and injure your body.

Using the Kensington security system

The Kensington security system connector is located at the back of the Monitor set. For more information of installation and using, refer to the manual supplied with the Kensington security system or visit http://www.kensington.com.

Connect the Kensington security system cable between the Monitor set and a table.

NOTE

yyThe Kensington security system is optional. You can obtain it from most electronics stores.

Mounting on a wall

( Images may vary depending on models)

For proper ventilation, allow a clearance of 100 mm on each side and from the wall. Detailed

instructions are available from your dealer, see the optional Tilt Wall Mounting Bracket Installation and Setup Guide.

100 mm

100 mm

100 mm

100 mm

If you intend to mount the Monitor set to a wall, attach Wall mounting interface (optional parts) to the back of the set.

When you install the Monitor set using a wall mounting interface (optional parts), attach it carefully so it will not drop.

1If you use screw longer than standard, the monitor might be damaged internally.

2If you use improper screw, the product might be damaged and drop from mounted position.

In this case, LG Electronics is not responsible for it.

Model	20MK4 series 22MK4 series
	24MK4 series
Wall Mount (A x B)	75 x 75
Standard screw	M4
Number of screws	4

Model	27MK4 series
Wall Mount (A x B)	100 x 100
Standard screw	M4
Number of screws	4

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yyWall Mount (A x B)

A	B

CAUTION

yyDisconnect the power cord first, and then move or install the Monitor set. Otherwise electric shock may occur.

yyIf you install the Monitor set on a ceiling or slanted wall, it may fall and result in severe injury.

yyUse only an authorized LG wall mount and contact the local dealer or qualified personnel.

yyDo not over tighten the screws as this may cause damage to the Monitor set and void your warranty.

yyUse only screws and wall mounts that meet the VESA standard. Any damages or injuries by misuse or using an improper accessory are not covered by the warranty.

yyScrew length from outer surface of back cover should be under 8mm.

Wall mount Pad

Back Cover

Wall mount Pad

Back Cover

Standard screw

Max.8mm

NOTE

yyUse the screws that are listed on the VESA standard screw specifications.

yyThe wall mount kit will include an installation manual and necessary parts.

yyThe wall mount bracket is optional. You can obtain additional accessories from your local dealer.

yyThe length of screws may differ depending on the wall mount. Be sure to use the proper length.

yyFor more information, refer to the instructions supplied with the wall mount.

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USING THE MONITOR SET

Connecting to a PC

yyYour Monitor set supports Plug & Play*.

*Plug & Play: A PC recognizes a connected device that users connect to a PC and turn on, without device configuration or user intervention.

D-SUB connection

Transmits analog video from your PC to the Monitor set. Connect the PC and the Monitor set with the supplied D-sub 15 pin signal cable as shown in the following illustrations.

HDMI connection

Transmits the digital video and audio signals from your PC to the Monitor set. Connect the PC and the

Monitor set with the HDMI cable as shown in the following illustrations.

NOTE

yWhen using a D-Sub signal input cable connector for Macintosh

yMac adapter

For Apple Macintosh use, a separate plug adapter is needed to change the 15 pin high density (3 row) D-SUB VGA connector on the supplied cable to a 15 pin 2 row connector.

NOTE

yyIf you use HDMI PC, it can cause compatibility problem. yyUse a certified cable with the HDMI logo attached. If you do not use a certified HDMI cable, the screen may

not display or a connection error may occur. yyRecommended HDMI cable types

-High-Speed HDMI®/TM Cable

-High-Speed HDMI®/TM Cable with Ethernet

NOTE

yWhen you want to use two PC in our Monitor, please connect the signal cable(D-SUB/DVI-D/ HDMI) respectively in Monitor set.

yIf you turn the Monitor set on while it is cold, the screen may flicker. This is normal.

ySome red, green, or blue spots may appear on the screen. This is normal.

Connecting to AV Devices

HDMI connection

Transmits the digital video and audio signals from your AV devices to the monitor. Connect your AV device to the monitor with the HDMI cable as illustrated below.

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Connecting Peripherals

Connecting Headphones

Connect peripherals to the monitor via the headphones port. Connect as illustrated.

H/P

(sold separately)

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NOTE

yyIf you use HDMI PC, it can cause compatibility problem.

yyUse a certified cable with the HDMI logo attached. If you do not use a certified HDMI cable, the screen may not display or a connection error may occur.

yyRecommended HDMI cable types

-High-Speed HDMI®/TM Cable

-High-Speed HDMI®/TM Cable with Ethernet

NOTE

yyPeripheral devices are sold separately.

yyIf you use angled headphones, it may cause a problem with connecting another external device to the monitor. Therefore, it is recommended to use straight headphones.

Angle Type

Straight Type

yyDepending on the audio settings of the PC and external device, headphones and speaker functions may be limited.

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CUSTOMIZING SETTINGS

Activating the Main Menu

1Press the joystick button on the bottom of the monitor.

2Move the joystick up/down (▲/▼) and left/right(◄/►) to set the options.

3Press the joystick button once more to close the main menu.

Joystick Button

Button		Menu Status	Description
	Main menu disabled		Enables the main menu.
	Main menu enabled		Close the main menu.
			(Long press the button to turn off the monitor)
	◄	Main menu disabled	Adjusts the monitor volume level. (for HDMI only)
		Main menu enabled	Enters the input features.
	►	Main menu disabled	Adjusts the monitor volume level. (for HDMI only)
		Main menu enabled	Enters the Settings feature.
	▲	Main menu disabled	Displays the information on the current input.
		Main menu enabled	Turns off the monitor.
	▼	Main menu disabled	Displays the information on the current input.
		Main menu enabled	Enters the picture mode feature. (for HDMI only)

Main Menu Features

		Main Menu	Description
		Settings	Configures the screen settings.
		Picture Mode	Select picture mode to achieve the best display ef-
			fect.
	Settings	Input	Sets input mode.
		Power Off	Turns off the monitor.
		Exit	Exits the main menu.

(for HDMI only)

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Customizing settings

	Settings > Quick Settings	Description
	Brightness	Adjusts the contrast and brightness of the screen.
	Contrast
	Volume	Adjusts the volume.(for HDMI only)

NOTE

yy You can adjust Mute/ Unmute by moving the joystick button to ▼ in the Volume menu.

Settings > 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.
		NOTE
	yy							The options may disabled at the recom-
		22MK4 series			24MK4 series		27MK4 series
	mended resolution (1920 x 1080).

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Customizing settings

Settings >

Picture

Picture Mode

Picture Adjust

		Description
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 to view photos.
Cinema	Optimizes the screen to improve the visual effects of a video.
Color Weak-	This mode is for users who cannot distinguish between red and green. It enables users with color
ness	weakness to easily distinguish between the two colors.
Game	Optimizes the screen for gameplay.
Brightness	Adjusts the contrast and brightness of the screen.
Contrast
Sharpness	Adjusts the sharpness of the screen.
SUPER	High	Optimized picture quality is displayed when a user wants crystal clear images.
RESOLUTION+		It is effective forhigh 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.
Black Level	Sets the offset level (for HDMI only).
	yyOffset: 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 ratio of
		the screen.
DFC	On	Adjusts the brightness automatically according to the screen.
	Off	Disables the DFC feature.

NOTE

yyThis is subsidiary for color weakness user. Therefore if you feel uncomfortable with the screen, please turn off this function.

yyThis function can’t distinguish some colors in some images.

19

	Game Adjust	Response Time	Sets a response time for displayed pictures based on the speed of the screen.
			For a normal environment, it is recommended that you use Fast.
			For a fast-moving picture, it is recommended that you use Faster.
			Setting to Faster may cause image sticking.
			Faster		Sets the response time to faster.
			Fast		Sets the response time to fast.
			Normal		Sets the response time to normal.
			Off		Does not use the response time improvement feature.
		FreeSync	Provides seamless and natural images by synchronizing the vertical frequency of the input signal
		22MK4 series	with that of the output signal.
		24MK4 series	CAUTION
		27MK4 series	yySupported Interface: HDMI.
			yySupported Graphic Card : A graphic card that supports AMD’s FreeSync is necessary.
			yySupported Version : Make sure to update the graphic card to the latest driver.
			yyFor more information and requirement, refer to AMD website at http://www.amd.com/
			FreeSync
			On		FreeSync function on.
			Off		FreeSync function off.
		Black	Black Stabilizer:
		Stabilizer	You can control the black contrast to have better visibility in dark scenes.
			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.
		Cross Hair	Cross Hair provides a mark on the center of the screen for First Person Shooter(FPS) games.
			Users can select the cross hair that fits their gaming environment among four different cross
			hairs.
			yyWhen the monitor is off or enters energy saving mode, the Cross Hair feature is
			automatically turned off.
	Color Adjust	Gamma	Mode 1, Mode 2,		The higher the gamma value, the darker the image becomes. Likewise, the
			Mode 3		lower the gamma value, the lighter the image becomes.
			Mode 4		If you do not need to adjust the gamma settings, select Mode 4.
		Color Temp	Selects the factory default picture color.
			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.
			Custom: The user can adjust it to red, green or blue by customization.
		Red/Green/	You can customize the picture color using Red, Green, and Blue colors.
		Blue
	Configuration	Horizontal	To move image left and right.
	Adjust
		Vertical	To move image up and down.
	(D-SUB only)
		Clock	To minimize any vertical bars or stripes visible on the screen background.The horizontal screen
			size will also change.
		Phase	To adjust the focus of the display. This item allows you to remove any horizontal noise and clear
			or sharpen the image of characters.
	Resolution	User can set the desired resolution.This option is enabled only when the screen resolution on your computer is set
	(D-SUB only)	to the following(D-SUB only).
		NOTE
		The function is enabled only when the screen resolution on your computer is set to the following, except that
		the PC output wrong resolution.
		1024x768, 1280x768, 1360x768, 1366x768,Off
		1280x960, 1600x900,Off
				22MK4 series			24MK4 series		27MK4 series
		1440x900, 1600x900,Off
				22MK4 series			24MK4 series		27MK4 series
	Picture Reset	Do you want to reset your settings?
		No	Cancel the select.
		Yes	Returns to the default settings.

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Customizing settings

Settings > General			Description
Language	To choose the language in which the control names are displayed.
SMART ENERGY	High		Saves energy using the high-efficiency SMART ENERGY SAVING feature.
SAVING
	Low		Saves energy using the low-efficiency SMART ENERGY SAVING feature.
	Off		Disables the SMART ENERGY SAVING feature.
Automatic Standby	The monitor will automatically switch to standby mode after a certain period.
OSD Lock	Prevents incorrect key input.
	On		Key input is disabled.
		NOTE
	yy All function except for the OSD Lock mode, brightness, Contrast, Input, Information and Vol-
	ume are disabled.
	Off		Key input is enabled.
Information	The display information will be shown the Model, Serial Number, Total Power On Time, Resolution.
Reset	Do you want to reset your settings?
	No		Cancel the select.
	Yes		Returns to the default settings.

NOTE

yy Saving Data depends on the Panel. So, those values should be different from each panel and panel vendor. If option of SMART ENERGY SAVING is High or Low, monitor luminance become higher or lower depend on source.