LG 27HJ713S User Manual

OWNER’S MANUAL  
MEDICAL  
MONITOR  
Please read this manual carefully before operating  
your set and retain it for future reference.  
27HJ713S  
Copyright 2019 LG Electronics Inc. All Rights Reserved.  
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.  
4
PRODUCT SPECIFICATIONS  
The product specifications are subject to change without prior notice for product improvements.  
~ ” refers to alternating current (AC), “  
” refers to direct current (DC).  
LCD Screen  
Type  
TFT (Thin Film Transistor)  
LCD (Liquid Crystal Display) Screen  
0.1554 mm x 0.1554 mm  
Pixel Pitch  
Resolution  
Maximum resolution  
3840 x 2160 @ 60 Hz  
Recommended resolution  
Horizontal frequency  
Video signal  
30 kHz to 135 kHz  
56 Hz to 61 Hz  
Vertical frequency  
Input Connectors  
Potential Equalization Conductor, SDI IN, DVI-D IN, HDMI IN, DP (DisplayPort) IN,  
USB UP (  
), USB (  
), RS-232C  
Output Connectors  
Power Source  
SDI OUT, DVI-D OUT, DP OUT  
Power Rating  
19 V  
6.32 A  
Power consumption  
Max 120 W  
Off Mode: ≤ 0.3 W  
AC/DC Adaptor  
DA-120D19 type, manufactured by Asian Power Devices Inc. (APD)  
Input: 100-240 V~ 50-60 Hz, 1.8-0.7 A  
Output: 19 V  
Class I  
6.32 A  
Environmental  
Conditions  
Operating Conditions  
Storing Conditions  
Temperature  
Humidity  
0 °C to 40 °C (32 °F to 104 °F)  
0 % to 80 %  
Pressure  
700 hPa to 1060 hPa  
-20 °C to 60 °C (-4 °F to 140 °F)  
0 % to 85 %  
Temperature  
Humidity  
Pressure  
500 hPa to 1060 hPa  
Dimensions  
Monitor Size (Width x Height x Depth)  
654.4 x 410.9 x 58 (mm)  
25.7 x 16.1 x 2.2 (inches)  
7.7 kg (16.9 lbs)  
Weight (without packaging)  
5
Prevention of electric shock  
Class Ⅰ  
Classification according to the  
degree of protection against  
ingress of water or particulate  
matter  
Front: IP35  
Except for Front: IP32  
Medical Specifications  
Level of safety in places where  
flammable anesthetics are mixed  
Not suitable for use in places where flammable  
anesthetics are mixed with air, oxygen or nitrogen  
with air, oxygen or nitrogen oxides oxides.  
Operating mode Continuous  
IP35  
6
ON CLEANING  
Recommended Cleaning Chemicals  
Isopropanol 100%  
Ethanol 70%  
Cidex® OPA  
0.9% NaCl solution  
How to Use Cleaner  
Prior to cleaning, turn off the monitor and remove the power cable.  
Soak a soft cloth in a recommended cleaner, then lightly rub the screen with no more than 1 N of force.  
The cleaner could cause serious damage if it leaks inside the monitor while cleaning.  
Do not clean the screen’s LCD panel as it may be damaged. Clean the other parts of the monitor.  
Do not use benzene, thinner, acids or alkaline cleaners or other such solvents.  
Cleaning guidelines for displays must only be carried out by medical professionals (doctors or nurses) and must not  
be handled by patients.  
7
ASSEMBLY AND PREPARING  
Product Composition  
Please check whether all the components are included in the box before using the product. If there are any missing  
components, contact the retailer where you purchased the product. Note that the product and related components  
may look different from those shown here.  
CD (Software/Owner's Manual)/  
Power Cord  
AC/DC Adaptor  
Regulatory Manual/Cards  
DisplayPort Cable  
HDMI Cable  
CAUTION  
Always use genuine LG components to ensure safety and product performance.  
The product warranty will not cover damage or injury caused by the use of unauthorized components.  
It is recommend that use the supplied components.  
If you use generic cables not certified by LG, the screen may not display or there may be image noises.  
Need to use the authorized components about the below accessories. Unauthorized components may be cause of the  
damage and malfunction of the product.  
Component  
HDMI Cable  
Standard  
Support HDMI 2.0 version, UL, Impedance 100ohm  
DisplayPort Cable  
Power Cord  
Support DISPLAYPORT 1.2a version, UL, Impedance 100ohm  
US – Approved Medical grade regulation  
Others – Approved country safety regulation  
The AC/DC adaptors and etc. except the upper components need to be used only supplied by manufacturer.  
8
NOTE  
The components may look different from those illustrated here.  
Without prior notice, all product information and specifications contained in this manual are subject to change to  
improve the performance of the product.  
To purchase optional accessories, visit an electronics store or an online shopping site, or contact the retailer from  
which you purchased the product.  
The power cord provided may differ depending upon the region.  
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  
Monitor Driver  
True Color Pro  
Installation Priority  
Recommended  
Optional  
27HJ713S  
O
O
Required and Recommended: You can download and install the latest version from the enclosed CD or from the LGE  
website (www.lg.com).  
Optional: You can download and install the latest version from the LGE website (www.lg.com).  
9
Product and LED Control buttons  
1
2
3
4
5
6
7
8
9
10  
LED Control button Functions  
1
2
3
4
5
6
7
8
Input  
Selects the input mode.  
PIP/PBP  
Hotkey 1, 2  
Brightness  
OK  
Displays the screens of two input modes on one monitor.  
Opens the Hotkey Settings menu.  
Adjusts the screen brightness.  
Selects menus or options and confirms.  
Adjusts the screen contrast.  
Contrast  
Menu  
Displays LED Control buttons on the front panel and opens the menu mode.  
Power  
indicator  
The green indicator illuminates if the power is on. The arrow indicates the position of the  
power switch.  
9
Power switch Turns the power on/off.  
NOTE  
The Power button is located at the bottom right on the front of the monitor.  
If the Control Key LED is turned off, press the Control Key [Menu] button to turn the Control button LED on. When  
the Control Key LED is turned on, you can control the Control Key functions.  
11  
Connectors  
1
2
3
4
5
6
8
9
7
1
2
3
4
5
6
Potential Equalization Conductor  
- Connect an equipotential plug.  
RS-232C Connector  
- Connect to an external device through the RS-232C connector and control the monitor.  
DC-IN (19 V ) Connector  
- Connect the AC/DC adaptor.  
SDI IN / SDI OUT Connector  
- Receives or transmits serial digital component signals.  
DVI-D IN / DVI-D OUT Connector  
- Receives or transmits digital video signals.  
HDMI IN Connector  
- Receives digital video signals.  
- DVI to HDMI/DP (DisplayPort) to HDMI cables may cause compatibility issues.  
Make sure to use certified cables that bear the HDMI logo. If you do not use a certified HDMI cable, the  
screen may not display, or a connection error may occur.  
Recommended HDMI cable types  
- High-speed HDMI®/TM cables  
- High-speed HDMI®/TM Ethernet cables  
12  
7
DP IN / DP OUT Connector  
- Receives or transmits digital video signals.  
- There may be no video output depending on the DP (DisplayPort) version of your PC.  
- A cable with DisplayPort 1.2 specifications is recommended when using a Mini DP to DP (Mini DisplayPort  
to DisplayPort) cable.  
8
9
SERVICE ONLY Connector  
- The USB port is used for service only.  
5 V  
0.9 A (USB Connector)  
- Used for HW Calibrator (Optional Accessory) connection.  
- A keyboard, mouse or USB device can be connected.  
CAUTION  
Precautions for Using USB Storage Devices  
A USB storage device installed using an automatic recognition program or its own driver may not be  
recognizable.  
Some USB devices may not be supported or may not work properly.  
It is recommended that you use a USB hub or hard disk drive with power supplied. (If insufficient power is  
supplied, the USB storage device may not be detected properly)  
5 V  
0.9 A /  
(USB Connector)  
- Connect your accessory to the USB input port.  
- To use USB 3.0, connect a USB 3.0 Type A-B cable to your PC.  
NOTE  
All signal OUT connectors (SDI, DVI, DP) output signals when the monitor's power switch is on. Signals are not output  
when the power switch is off.  
This monitor supports the *Plug and Play feature.  
* 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.  
The standard of the DVI and the SDI output terminals for transmitting a screen  
- DVI OUT: Connect a 5-meter cable to transmit a copied screen to a monitor.  
- SDI OUT: Connect a 100-meter cable (BELDEN 1694) to transmit a copied screen to a monitor.  
13  
Installing the Monitor  
4
Cable connection and organize  
Before connecting the connectors, remove the back  
door as shown below.  
1
5
2
CAUTION  
When the back door is attached to the monitor, the  
monitor meets water resistance standards. Do not  
use the monitor with the back door detached, as the  
water resistance capability is not guaranteed without  
the door.  
3
14  
Wall Mount (mm)  
Standard screw  
Required screws  
Wall Mount Plate  
(optional)  
Installing on the Wall  
100 x 100  
M4 x L10  
4
200 x 100  
M4 x L10  
4
Install the monitor at least 100 mm (3.9 inches) away  
from the wall on each side of the monitor to ensure  
sufficient ventilation. Detailed installation instructions  
can be obtained from your local dealer. Please refer to  
the manual to install and set up a tilting wall mounting  
bracket.  
RW120  
RW240  
100 mm  
(3.9 inches)  
NOTE  
100 mm  
100 mm  
The screws (M4 x L10) can be found fastened in the  
wall mount screw holes on the back of the monitor.  
(3.9 inches)  
(3.9 inches)  
Use the screws specified by VESA standards.  
The wall mount kit includes an installation manual and  
the necessary parts.  
100 mm  
(3.9 inches)  
The wall mount plate is an optional item. You can  
obtain additional accessories from your local dealer.  
To install the monitor to a wall, attach a wall mount  
plate (optional) to the back of the monitor.  
The length of screws may differ depending on the wall  
mount. Be sure to use the proper length.  
Make sure that the wall mount plate (optional) is  
securely fixed to the monitor and to the wall.  
For more information, please refer to the manual for  
the wall mounting bracket.  
1 Using screws longer than the standard length may  
damage the inside of the product.  
2 A non-VESA standard screw may damage  
the product and cause the monitor to fall. LG  
Electronics is not liable for any accidents relating to  
the use of non-standard screws.  
15  
Precautions for Connecting the Power Cord  
CAUTION  
Disconnect the power cord first. Then move or install  
the monitor. There is risk of electric shock.  
Installing the monitor on the ceiling or on a slanted wall  
may result in the monitor falling off, which could lead to  
injury. Use an authorized LG wall mount and contact the  
local dealer or qualified personnel.  
Applying excessive force when tightening screws may  
damage the monitor. Such damage is not covered by  
the product warranty.  
100-240 V ~  
Use the wall mounting bracket and screws that confirm  
to VESA standards. Damage caused by the use or  
misuse of inappropriate components is not covered by  
the product warranty.  
Make sure to use the power cord that is provided in  
the product package. Connect the cord to a grounded  
power outlet.  
When measured from the back of the monitor, the  
length of each installed screw must be 8 mm (0.3  
inches) or less.  
If you need another power cord, please contact your  
local dealer or the nearest retail store.  
Wall mount plate  
Back of the  
monitor  
Wall mount plate  
Back of the monitor  
Screw  
specifications  
: M4 x L10  
Max. 8 mm  
(0.3 inches)  
16  
SETTINGS  
Activate Main Menu  
1 Press the [Menu] button to activate the LED Control button. Pressing the [Menu] button while the LED Control  
button is activated brings up the OSD menu.  
2 Use the [ Brightness ] left/right and [ Contrast ] up/down LED Control buttons to navigate.  
3 Press the [Menu] or [ Brightness] LED Control button to exit the OSD menu.  
CAUTION  
The actual On Screen Displays (OSDs) that appear on your monitor may differ from those shown in this manual.  
17  
QUICK SETTINGS  
The following settings are available.  
Quick Settings  
Description  
Brightness  
Adjusts the brightness of the screen.  
NOTE  
You can turn the Brightness Stabilization to On/ Off by pressing the button in the  
Brightness menu.  
When the Brightness Stabilization is On, Brightness menus becomes disabled.  
When the Brightness Stabilization is On, SMART ENERGY SAVING and DFC menus  
become disabled.  
Contrast  
Adjusts the color contrast of the screen.  
Hot key Settings  
Assigns hotkeys for picture settings. Once configured, the assigned menu is activated when  
a hotkey is pressed. (PIP Size, Mono, Color Temp, Gamma, Black Stabilizer, Screen Zoom,  
Off)  
Hotkey 1  
Hotkey 2  
Assigns a function to Hotkey 1.  
Assigns a function to Hotkey 2.  
18  
Quick Settings  
User Preset  
Description  
User Preset allows the user to save or load up to 10 picture quality settings for multiple  
connected devices in each preset.  
NOTE  
You can use User Preset to import or save items in Picture Adjust and Color Adjust of the  
Picture menu.  
User Name  
Allows the user to change and register a user name (Preset  
1 ~ Preset 3, User 1 ~ User 7) as the user wants.  
The user can enter a user name to be registered by using the  
screen keyboard.  
Preset 1 ~ Preset 3 are factory-set user names as samples  
and the user can change the names.  
Load User Settings  
Save User Settings  
Allows the user to change the picture quality settings by  
loading the User Preset settings.  
Saves the current picture quality settings in the  
corresponding User Preset.  
Preset 1 ~ Preset 3 are factory-set values as samples and  
the user can change the values.  
Preset 1: Use this preset for bluish color.  
Preset 2: Use this preset for greenish color and brighter  
low-gradation.  
Preset 3: Use this preset to soften the red tone.  
User 1 ~ User 7: Initial values are the same as the factory  
settings.  
Default User Settings  
User Preset Reset  
Loads the initial basic picture settings.  
Initializes User Preset settings.  
Initializes the existing user name and user settings to be  
restored to factory settings (Preset 1 ~ Preset 3, User 1  
~ User 7).  
19  
INPUT  
The following settings are available.  
Input  
Description  
Main Input List  
Selects the input mode.  
Input List  
Aspect Ratio  
Adjusts the aspect ratio of the screen. (Full Wide, Original, 1:1)  
NOTE  
The display may look the same for Full Wide, Original, and 1:1 options at the  
recommended resolution (3840 x 2160).  
Main Aspect  
Ratio  
Full Wide  
Original  
Full Wide  
Original  
Displays the video to fit the PBP / PIP screen,  
regardless of the video signal input.  
Displays the video in the aspect ratio of the video  
signal input on the PBP / PIP screen.  
Sub Aspect  
Ratio  
Displays the video to fit the PBP / PIP screen,  
regardless of the video signal input.  
Displays the video in the aspect ratio of the video  
signal input on the PBP / PIP screen.  
20  
Input  
PBP / PIP  
Description  
Displays the screens of two input modes on one monitor.  
Adjusts the PIP size. (Small, Medium, Large)  
PIP Size  
Main/Sub Screen  
Change  
Toggles between the main screen and the sub screen in PBP / PIP mode.  
Failover Input Switch  
Main Input is changed to Failover Input when there is no signal at the Main Input.  
The Failover Input Switch input will be operated or  
turned off.  
Failover Input Switch  
Main Input  
Select Main Input source.  
Failover Input  
Select Failover Input source.  
NOTE  
When there is no Sub Screen signal, PIP Size and Main/Sub Screen Change are disabled.  
21  
PICTURE  
The following settings are available.  
Picture  
Description  
Custom  
Allows the user to adjust each element. The color mode of the main  
menu can be adjusted.  
Picture Mode  
Mono  
sRGB  
EBU  
Monochrome (black and white) color mode.  
A standard RGB color mode for the monitor and printer.  
A standard TV PAL color mode for broadcasts.  
REC709  
A standard HDTV color mode for broadcasts.  
Optimizes the screen for REC2020.  
REC2020  
SMPTE-C  
DICOM  
A standard TV NTSC color mode for broadcasts.  
A mode optimized for viewing medical images.  
You can brighten the screen in the OSD menu.  
Adjusts to the last calibrated screen.  
Calibration 1  
Calibration 2  
Adjusts to the previously calibrated screen.  
NOTE  
Brightness Stabilization function can be enabled in Custom mode.  
If the Picture Mode is changed in the DisplayPort (DP) input, the screen may flicker or the  
resolution of your PC screen may be affected.  
Calibration 2: This menu is enabled if you install the TRUE COLOR PRO program and perform  
a calibration.  
22  
Picture  
Picture Adjust  
Description  
Adjusts the brightness of the screen.  
NOTE  
You can turn the Brightness Stabilization to On/ Off by pressing  
the button in the Brightness menu.  
Brightness  
When the Brightness Stabilization is On, Brightness menus  
becomes disabled.  
When the Brightness Stabilization is On, SMART ENERGY  
SAVING and DFC menus become disabled.  
Contrast  
Adjusts the color contrast of the screen.  
Sharpness  
Adjusts the sharpness of the screen.  
Brightness  
Maintains the brightness configured for medical environments.  
Stabilization  
On  
Adjusts the brightness automatically.  
Off  
Deactivates the function, and allows the user to  
configure the brightness.  
SUPER RESOLUTION+ High  
Middle  
Select this option for crystal clear images. Best for  
high-definition video or games.  
The optimized picture quality is displayed when a  
user wants images between low and high modes for  
comfortable viewing. Best for UCC or SD video.  
Low  
Off  
The optimized picture quality is displayed when a  
user wants smooth and natural images. Best for  
still images with less movement.  
Select this option for the normal user experience.  
Disables SUPER RESOLUTION+.  
Black Level  
Sets the offset level. (HDMI only)  
Offset: A reference for video signals. Offset is the darkest color that  
the monitor can display.  
High  
Low  
Keeps the current contrast ratio of the screen.  
Lowers the black levels and raises the white levels  
from the current contrast ratio of the screen.  
23  
Picture  
Description  
Picture Adjust  
HDMI ULTRA HD Deep Provides sharper images when connected to a device supporting  
Color  
ULTRA HD Deep Color.  
NOTE  
If the connected device does not support ULTRA HD Deep Color, the  
feature may not work properly.  
If you experience a problem, set HDMI ULTRA HD Deep Color to  
Off.  
Formats supported at 4K@ 60 Hz1)  
Deep color / chroma sampling  
8-bit 10-bit  
YCbCr 4:2:0  
YCbCr 4:2:2  
Frame rate  
(Hz)  
Resolution  
59.94  
60.00  
3840 x 2160  
YCbCr 4:4:4  
RGB 4:4:4  
-
-
1) Supported when HDMI ULTRA HD Deep Color is set to On.  
DFC  
On  
Adjusts the brightness automatically according to  
the screen.  
Off  
Disables the DFC feature.  
Response Time  
Sets the response time for displayed pictures based on the speed of  
the screen.  
For a normal environment, Normal is recommended. For a fast-  
moving picture, Fast is recommended. Setting the response time to  
Fast may cause image sticking.  
Fast  
Sets the response time to fast.  
Sets the response time to normal.  
Sets the response time to slow.  
Normal  
Slow  
Off  
Does not use the response time improvement  
feature.  
Black Stabilizer  
Objects can be seen more clearly in dark screen picture by adjusting  
the black level.  
Increasing the Black Stabilizer value brightens the low gray levels  
on the screen. (You can easily distinguish objects on a dark game  
screen.)  
Reducing the Black Stabilizer value darkens the low gray levels and  
increases the dynamic contrast on the screen.  
24  
Picture  
Picture Adjust  
Description  
Uniformity  
Adjusts the uniformity of screen brightness.  
NOTE  
Enabling Uniformity may reduce the overall brightness of the  
image.  
On  
Enables the Uniformity feature.  
Off  
Disables the Uniformity feature.  
Color Adjust  
Gamma  
Custom gamma settings: Gamma 1.8, Gamma 2.0, Gamma 2.2,  
Gamma 2.4, Gamma 2.6, DICOM Gamma Curve.  
The higher the gamma value, the darker the image becomes. Likewise,  
the lower the gamma value, the lighter the image becomes.  
Color Temp  
Adjusts the DICOM Gamma. (Custom, 6500K, 8500K, 9300K,  
Manual)  
Custom  
6500K  
8500K  
9300K  
Manual  
The user can customize the red, green and blue  
color.  
Sets the picture color to the color temperature of a  
reddish 6500K.  
Sets the picture color to the color temperatures of  
8500K, setting to a color between red and blue.  
Sets the picture color to the color temperature of a  
bluish 9300K.  
Adjusts the color temperature in 500K increments.  
(Note that 9300K is supported rather than  
9500K.)  
Red  
Green  
Blue  
You can customize the picture color using red, green and blue.  
Six Color  
Fulfills your color requirements by adjusting the hue and saturation  
of the six colors (red, green, blue, cyan, magenta and yellow). The  
settings are then saved.  
Hue  
Adjusts the tone of the screen colors.  
Saturation  
Adjusts the saturation of the screen colors. The  
lower the value, the less saturated and brighter  
the colors become. The higher the value, the more  
saturated and darker the colors become.  
Picture Reset  
Returns the colors to the default settings.  
25  
GENERAL  
The following settings are available.  
General  
Description  
Language  
Sets the menu screen to the desired language.  
SMART ENERGY  
SAVING  
Conserve energy by using luminance compensation algorithm.  
High  
Low  
Off  
Saves energy using the high-efficiency SMART ENERGY  
SAVING feature.  
Saves energy using the low-efficiency SMART ENERGY  
SAVING feature.  
Disables the SMART ENERGY SAVING feature.  
HW Calibration  
RS-232C and HW Calibration cannot be used together simultaneously.  
On  
Enables the HW Calibration feature.  
Off  
Disables the HW Calibration feature.  
RS-232C  
RS-232C and HW Calibration cannot be used together simultaneously.  
Serial Port  
Set ID  
Enables or disables the RS-232C feature.  
Configures the Set ID. (Configuration range: 1-10)  
LED Control Button  
Adjusts how long the control button LEDs remain lit. (Always On, 20Sec Time Out, 10Sec  
Time Out, 5Sec Time Out)  
26  
General  
Description  
DVI Power Supply  
Supplies power to devices connected to the DVI input port as a dongle without power.  
On  
Activates the DVI Power Supply feature.  
Off  
Deactivates the DVI Power Supply feature.  
Hot key Settings  
Assigns hotkeys for picture settings. Once configured, the assigned menu is activated  
when a hotkey is pressed.(PIP Size, Mono, Color Temp, Gamma, Black Stabilizer, Screen  
Zoom, Off)  
Hotkey 1  
Hotkey 2  
Assigns a function to Hotkey 1.  
Assigns a function to Hotkey 2.  
User Preset  
User Preset allows the user to save or load up to 10 picture quality settings for multiple  
connected devices in each preset.  
NOTE  
You can use User Preset to import or save items in Picture Adjust and Color Adjust of  
the Picture menu.  
User Name  
Allows the user to change and register a user name  
(Preset 1 ~ Preset 3, User 1 ~ User 7) as the user wants.  
The user can enter a user name to be registered by using  
the screen keyboard.  
Preset 1 ~ Preset 3 are factory-set user names as  
samples and the user can change the names.  
Load User Settings  
Save User Settings  
Allows the user to change the picture quality settings by  
loading the User Preset settings.  
Saves the current picture quality settings in the  
corresponding User Preset.  
Preset 1 ~ Preset 3 are factory-set values as samples and  
the user can change the values.  
Preset 1: Use this preset for bluish color.  
Preset 2: Use this preset for greenish color and brighter  
low-gradation.  
Preset 3: Use this preset to soften the red tone.  
User 1 ~ User 7: Initial values are the same as the  
factory settings.  
Default User Settings  
User Preset Reset  
Loads the initial basic picture settings.  
Initializes User Preset settings.  
Initializes the existing user name and user settings to be  
restored to factory settings (Preset 1 ~ Preset 3, User  
1 ~ User 7).  
27  
General  
Description  
Auto Screen Off  
The screen turns off automatically when there are no monitor signals for a set period of  
time.  
On  
Enables the Auto Screen Off feature.  
Off  
Disables the Auto Screen Off feature.  
DisplayPort 1.2  
Enables or disables DisplayPort 1.2.  
NOTE  
Be sure to configure this option according to the DisplayPort version supported by your  
graphics card.  
Set this option to Off if your graphics card is not compatible.  
When DisplayPort 1.2 is disabled, you cannot use the 10-bit output of your graphics  
card.  
This feature disables the configuration and adjustment of menus.  
OSD Lock  
On  
Enables the OSD Lock feature.  
Off  
Disables the OSD Lock feature.  
NOTE  
Deactivates all functions except the Quick Settings menu and Input menu's Input List,  
Aspect Ratio, PBP / PIP functions, Failover Input Switch, and the General menu's OSD  
Lock and Information functions.  
Information  
Reset  
Displays the total power on time, serial number and resolution information.  
Do you want to reset your settings?  
Yes  
No  
Restores the default settings.  
Cancels the reset.  
28  
TROUBLESHOOTING  
Nothing is displayed on the screen.  
Is the monitor's power cord plugged in?  
Check if the power cord is correctly plugged into the power outlet.  
Check your power cable connection and turn the power switch on.  
Is the power indicator on?  
Is the power indicator displaying as green?  
Check if the input setting is correct when the PC and the product are  
connected. (MENU > Quick Settings > Input)  
Is the "Out of Range" message  
displayed?  
This occurs when the signals transferred from your PC (graphics card)  
are outside the horizontal or vertical frequency range of your monitor.  
Please see the "Product Specification" section of this manual to set the  
appropriate frequency.  
Is the 'No Signal' message displayed?  
This is displayed when the signal cable between the PC and the monitor  
is missing or disconnected. Check the cable and reconnect it.  
The screen may not be displayed  
properly when configuring DisplayPort  
(DisplayPort) 1.2 in a Mac product.  
DisplayPort 1.2 may not be supported depending on the Mac product.  
Please contact the manufacturer.  
The screen retains an image.  
Does image sticking occur even when the  
monitor is turned off?  
Displaying a still image for a prolonged period may damage the screen,  
resulting in image sticking.  
To extend the lifetime of the monitor, use a screensaver.  
The 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 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 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 horizontal interval, the result is the number of horizontal lines displayed per second. This is called  
horizontal frequency and is represented by kHz.  
29  
NOTE  
Check if your graphics card's resolution or frequency is within the range supported by your monitor and set your  
graphics card to the recommended (optimal) resolution in Control Panel > Display > Settings in Windows. (The  
settings may differ depending on your operating system)  
Not setting your graphics card to the recommended (optimal) resolution may result in blurred text, a dimmed screen,  
a truncated display area or misalignment of the display.  
The setting method may differ depending on the computer and operating system. Some resolutions may not be  
available depending on your graphics card's performance. If this is the case, contact the manufacturer of your  
computer or graphics card for help.  
Some graphics cards may not support the 3840 x 2160 resolution. If the resolution cannot be displayed, contact the  
manufacturer of your graphics card.  
The display color is abnormal.  
Does the display appear discolored (16  
colors)?  
Set the number of colors to 24-bits (True Color) or above: Control Panel  
> Display > Settings > Color Quality in Windows (the settings may  
differ depending on your operating system).  
Does the display color appear unstable  
or monochrome?  
Check the connection status of the signal cable and connect it properly  
or reinsert your PC's graphics card.  
Are there spots on the screen?  
When using the monitor, pixelated spots (red, green, blue, white or black)  
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.  
The 'Unknown Monitor' message appears when the monitor is connected.  
Did you install the monitor driver?  
Install the enclosed monitor driver provided with the monitor or go to  
the LG Electronics homepage (http://www.lg.com) to download and  
install the monitor driver.  
Check your graphics card user manual to see if the Plug and Play  
function is supported.  
30  
PRODUCT SPECIFICATIONS  
The product specifications are subject to change without prior notice for product improvements.  
Preset Modes  
DisplayPort  
Horizontal Frequency  
(kHz)  
Vertical Frequency  
(Hz)  
Preset Modes  
Polarity (H/V)  
Remarks  
640 x 480  
800 x 600  
31.469  
37.879  
48.363  
54.347  
45  
59.94  
60.317  
60  
-/-  
+/+  
-/-  
1024 x 768  
1152 x 864  
1280 x 720  
1280 x 1024  
1600 x 900  
1920 x 1080  
2560 x 1440  
3840 x 2160  
3840 x 2160  
60.05  
60  
+/+  
+/+  
+/+  
+/+  
+/-  
+/-  
+/-  
+/-  
63.981  
60  
60.02  
60  
67.5  
60  
88.79  
66.66  
133.32  
59.95  
30  
60  
31  
HDMI  
Horizontal Frequency  
(kHz)  
Vertical Frequency  
(Hz)  
Preset Modes  
Polarity (H/V)  
Remarks  
640 x 480  
800 x 600  
31.469  
37.879  
48.363  
54.347  
45  
59.94  
60.317  
60  
-/-  
+/+  
-/-  
1024 x 768  
1152 x 864  
1280 x 720  
1280 x 1024  
1600 x 900  
1920 x 1080  
2560 x 1440  
3840 x 2160  
60.05  
60  
+/+  
+/+  
+/+  
+/+  
+/-  
+/-  
+/-  
63.981  
60  
60.02  
60  
67.5  
60  
88.79  
67.5  
59.95  
30  
When the HDMI ULTRA  
HD Deep Color is set  
to On  
3840 x 2160  
135  
60  
+/-  
DVI  
Horizontal Frequency  
(kHz)  
Vertical Frequency  
(Hz)  
Preset Modes  
Polarity (H/V)  
Remarks  
640 x 480  
800 x 600  
1024 x 768  
1152 x 864  
1280 x 720  
31.469  
37.879  
48.363  
54.347  
45  
59.94  
60.317  
60  
-/-  
+/+  
-/-  
60.05  
60  
+/+  
+/+  
1280 x 1024  
1600 x 900  
1920 x 1080  
63.981  
60  
60.02  
60  
+/+  
+/+  
+/-  
67.5  
60  
32  
Input Timing (Video)  
Vertical dimensions  
Vertical Frequency (Hz)  
DVI  
HDMI  
DP  
SDI  
480i  
480p  
59.94/60  
59.94/60  
50  
-
O
O
-
-
-
O
-
O
-
O
O
-
576p  
-
576i  
50  
-
O
O
O
O
O
O
O
-
720p  
59.94/60  
50  
O
O
O
O
O
O
-
O
O
O
O
O
O
O
O
O
O
O
O
O
O
-
720p  
1080i  
1080p  
1080i  
1080p  
1080p  
1080p  
2160p  
2160p  
2160p  
2160p  
2160p  
59.94/60  
59.94/60  
50  
-
O
-
50  
-
23.98/24  
29.97/30  
23.98/24  
25  
-
-
-
O
-
-
-
-
-
-
29.97/30  
50  
-
-
-
-
-
-
59.94/60  
-
-
-
Power indicator  
Mode  
LED Color  
Green  
On Mode  
33  
EXTERNAL CONTROLLER SETUP  
The actual product may differ from the picture shown.  
Connect the RS-232C (serial connector) of the PC to the RS-232C IN connector at the back of the monitor.  
Purchase a cable to connect the RS-232C connectors, as the cable is not provided as an accessory.  
Use an RS-232C cable to remotely control the monitor (see Figure 1).  
RS-232C  
(PC)  
(Monitor)  
Figure 1: RS-232C Connection Diagram  
RXD  
TXD  
DTR  
GND  
DSR  
RTS  
CTS  
RXD  
TXD  
DTR  
GND  
DSR  
RTS  
CTS  
2
3
4
5
6
7
8
2
3
4
5
6
7
8
5
1
6
9
PC  
Monitor  
* There are no connections to Pin 1 and Pin 9.  
34  
Set ID Function  
This function allows you to assign a unique ID to the monitor to control it remotely from your PC.  
Please refer to the "Actual Data Structure".  
1 Press the [Menu] button.  
2 Use the  
3 Use the  
,
,
,
,
,
,
buttons to select General. Then press the OK button.  
buttons to select Set ID. Then press the OK button.  
4 Select a Set ID to assign. Then press the OK button. The Set ID can be a value from 1 to 10.  
5 Press the button to exit (pressing the [Menu] button hides the OSD).  
Communication Parameters  
Baud rate: 9600 bps (UART)  
Data length: 8 bits  
Parity bit: None  
Stop bit: 1 bit  
Communication code: ASCII code  
Crossed (reverse) cable used.  
35  
Command Reference List  
Data  
(Hexadecimal)  
00 - 01  
Title  
Command1  
Command2  
01. Power  
k
k
k
k
k
k
a
d
b
y
c
02. Screen Mute  
00 - 01  
03. Input select (Main)  
04. Input select (Sub)  
05. Aspect Ratio (Main)  
06. Aspect Ratio (Sub)  
00 - 03  
00 - 03  
00 - 02  
o
00 - 01  
07. PBP/PIP  
k
n
00 - 05  
08. PIP Size  
k
m
d
p
a
x
h
g
k
b
c
d
e
f
00 - 02  
01  
09. Main/Sub Screen Change  
10. Picture Mode  
11. Brightness  
00 - 09  
00 - 64  
00 - 64  
00 - 64  
00 - 01  
00 - 03  
00 - 01  
00 - 01  
00 - 01  
00 - 03  
00 - 64  
00 - 01  
00 - 05  
00 - 04  
00 - 64  
00 - 64  
00 - 64  
00 - 10  
00 - 02  
00 - 03  
00 - 01  
00 - 01  
00 - 01  
00 - 01  
00 - 02  
00 ~ 01  
00 ~ 03  
00 ~ 03  
k
12. Contrast  
k
13. Sharpness  
k
14. Brightness Stabilization  
15. SUPER RESOLUTION+  
16. Black Level  
m
m
m
m
m
m
m
m
m
k
17. HDMI Ultra HD Deep Color  
18. DFC  
19. Response Time  
20. Black Stabilizer  
21. Uniformity  
g
h
i
22. Gamma  
j
23. Color Temp  
u
w
y
z
i
24. Red Gain  
j
25. Green Gain  
j
26. Blue Gain  
j
27. Language  
f
28. SMART ENERGY SAVING  
29. LED Control Button  
30. DVI Power Supply  
31. Auto Screen Off  
32. DisplayPort 1.2  
33. OSD Lock  
m
m
m
m
m
k
k
l
m
n
o
m
k
z
v
w
34. Reset  
f
35. Failover Input Switch  
36. Main Input  
k
k
37. Failover Input  
k
36  
Transmission/Reception Protocol  
Transmission  
[Command1][Command2][ ][Set ID][ ][Data][Cr]  
[Command 1]: j, k, m, x  
[Command 2]: This command is used to control the monitor.  
[Set ID]: Used to identify the monitor being controlled. [Set ID] can be assigned to each monitor under GENERAL in the  
Settings Menu.  
A value from 1 to 10 can be assigned. By selecting '0' for the [Set ID] value in the protocol format, you can  
control all connected monitors.  
* The value is displayed as base 10 on the OSD menu and used as base 16 (0x00 - 0x63) in the  
transmission/reception protocol for remote control.  
[Data]: Transmits a setting value (Data) required for the command described previously. (base 16)  
When the Data ‘FF’ is sent, the setting value corresponding to the specific command is read (Data read mode).  
[Cr]: Carriage return, which is ‘0x0D’ in ASCII code.  
[
]: Space, which is ‘0x20’ in ASCII code.  
OK Acknowledgment  
[Command2][ ][Set ID][ ][OK][Data][x]  
When the Data has been successfully received, the monitor sends an ACK response signal in the above format. The  
Data showing the current state is received in the Data read mode. The Data from the PC is simply returned in the Data  
write mode.  
37  
Error Acknowledgment  
[Command2][ ][Set ID][ ][NG][Data][x]  
When the set receives an abnormal piece of Data for an unsupported function or there is a communication error, it  
returns ACK in the format above.  
Data 00 : Illegal code  
Actual Data Structure (Base 16 Base 10)  
See the table below when inserting a base-16 value in [Data].  
The channel setup command (ma) uses a 2-byte base-16 value ([Data]) for channel number input.  
00: Step 0  
32: Step 50 (Set ID 50)  
FE: Step 254  
FF: Step 255  
01: Step 1 (Set ID 1)  
33: Step 51 (Set ID 51)  
...  
...  
...  
0A: Step 10 (Set ID 10)  
63: Step 99 (Set ID 99)  
01 00: Step 256  
...  
...  
...  
0F: Step 15 (Set ID 15)  
10: Step 16 (Set ID 16)  
...  
C7: Step 199  
C8: Step 200  
...  
27 0E: Step 9998  
27 0F: Step 9999  
...  
* Commands may work differently depending on the model and signal.  
38  
01. Power (Command: k a)  
This controls the monitor power on/off.  
Transmission [k][a][ ][Set ID][ ][Data][Cr]  
Data 00: Power Off  
01: Power On  
Ack [a][ ][Set ID][ ][OK/NG][Data][x]  
02. Screen Mute (Command: k d)  
This controls the monitor display power on/off.  
Transmission [k][d][ ][Set ID][ ][Data][Cr]  
Data 00: Screen Mute Off  
01: Screen Mute On  
Ack [d][ ][Set ID][ ][OK/NG][Data][x]  
03. Input select (Main) (Command: k b)  
This controls the input mode of the main screen.  
Transmission [k][b][ ][Set ID][ ][Data][Cr]  
Data  
00: SDI  
01: DVI  
02: HDMI  
03: DisplayPort  
Ack [b][ ][Set ID][ ][OK/NG][Data][x]  
04. Input select (Sub) (Command: k y)  
This controls the input mode of the sub screen.  
Transmission [k][y][ ][Set ID][ ][Data][Cr]  
Data  
00: SDI  
01: DVI  
02: HDMI  
03: DisplayPort  
Ack [y][ ][Set ID][ ][OK/NG][Data][x]  
39  
05. Aspect Ratio (Main) (Command: k c)  
This adjusts the aspect ratio of the main screen.  
Transmission [k][c][ ][Set ID][ ][Data][Cr]  
Data  
00: Full Wide  
02: 1:1  
01: Original  
Ack [c][ ][Set ID][ ][OK/NG][Data][x]  
06. Aspect Ratio (Sub) (Command: k o)  
This adjusts the aspect ratio of the sub screen.  
Transmission [k][o][ ][Set ID][ ][Data][Cr]  
Data 00: Full Wide  
01: Original  
Ack [o][ ][Set ID][ ][OK/NG][Data][x]  
07. PBP/PIP (Command: k n)  
This controls the PBP/PIP mode.  
Transmission [k][n][ ][Set ID][ ][Data][Cr]  
Data  
00: Off  
01: PBP  
02: PIP_LT  
04: PIP_LB  
03: PIP_RT  
05: PIP_RB  
Ack [n][ ][Set ID][ ][OK/NG][Data][x]  
08. PIP Size (Command: k p)  
This adjusts the PIP size.  
Transmission [k][p][ ][Set ID][ ][Data][Cr]  
Data  
00: Small  
02: Large  
01: Medium  
Ack [p][ ][Set ID][ ][OK/NG][Data][x]  
40  
09. Main/Sub Screen Change (Command: m a)  
This controls the main/sub screen change in PBP mode.  
Transmission [m][a][ ][Set ID][ ][Data][Cr]  
Data 01: Main/Sub Screen exchange  
Ack [a][ ][Set ID][ ][OK/NG][Data][x]  
10. Picture Mode (Command: d x)  
This controls the picture mode.  
Transmission [d][x][ ][Set ID][ ][Data][Cr]  
Data  
00: Custom  
02: sRGB  
01: Mono  
03: EBU  
04: REC709  
05: REC2020  
07: DICOM  
06: SMPTE-C  
08: Calibration 1  
09: Calibration 2  
Ack [x][ ][Set ID][ ][OK/NG][Data][x]  
11. Brightness (Command: k h)  
This adjusts the screen brightness.  
Transmission [k][h][ ][Set ID][ ][Data][Cr]  
Data Min: 00 - Max: 64  
Ack [h][ ][Set ID][ ][OK/NG][Data][x]  
12. Contrast (Command: k g)  
This adjusts the screen contrast.  
Transmission [k][g][ ][Set ID][ ][Data][Cr]  
Data Min: 00 - Max: 64  
Ack [g][ ][Set ID][ ][OK/NG][Data][x]  
41  
13. Sharpness (Command: k k)  
Adjusts the sharpness of the screen.  
Transmission [k][k][ ][Set ID][ ][Data][Cr]  
Data Min: 00 - Max: 64  
Ack [k][ ][Set ID][ ][OK/NG][Data][x]  
14. Brightness Stabilization (Command: m b)  
This adjusts the Brightness Stabilization feature.  
Transmission [m][b][ ][Set ID][ ][Data][Cr]  
Data 00: Off  
01: On  
Ack [b][ ][Set ID][ ][OK/NG][Data][x]  
15. SUPER RESOLUTION+ (Command: m c)  
This controls the SUPER RESOLUTION+ feature.  
Transmission [m][c][ ][Set ID][ ][Data][Cr]  
Data 00: High  
02: Low  
01: Middle  
03: Off  
Ack [c][ ][Set ID][ ][OK/NG][Data][x]  
16. Black Level (Command: m d)  
This controls the offset level (for HDMI only).  
Transmission [m][d][ ][Set ID][ ][Data][Cr]  
Data 00: High  
01: Low  
Ack [d][ ][Set ID][ ][OK/NG][Data][x]  
17. HDMI ULTRA HD Deep Color (Command: m e)  
This controls the Ultra Deep Color feature. (HDMI only)  
Transmission [m][e][ ][Set ID][ ][Data][Cr]  
Data 00: On  
01: Off  
Ack [e][ ][Set ID][ ][OK/NG][Data][x]  
42  
18. DFC (Command: m f)  
This controls the DFC feature.  
Transmission [m][f][ ][Set ID][ ][Data][Cr]  
Data 00: On  
01: Off  
Ack [f][ ][Set ID][ ][OK/NG][Data][x]  
19. Response Time (Command: m g)  
This controls the response time.  
Transmission [m][g][ ][Set ID][ ][Data][Cr]  
Data 00: Fast  
02: Slow  
01: Normal  
03: Off  
Ack [g][ ][Set ID][ ][OK/NG][Data][x]  
20. Black Stabilizer (Command: m h)  
This controls the Black Stabilizer feature.  
Transmission [m][h][ ][Set ID][ ][Data][Cr]  
Data Min: 00 - Max: 64  
Ack [h][ ][Set ID][ ][OK/NG][Data][x]  
21. Uniformity (Command: m i)  
This controls the Uniformity Calibration feature.  
Transmission [m][i][ ][Set ID][ ][Data][Cr]  
Data 00: On  
01: Off  
Ack [i][ ][Set ID][ ][OK/NG][Data][x]  
22. Gamma (Command: m j)  
This adjusts the Gamma settings.  
Transmission [m][j][ ][Set ID][ ][Data][Cr]  
Data 00: Gamma 1.8  
02: Gamma 2.2  
01: Gamma 2.0  
03: Gamma 2.4  
04: Gamma 2.6  
05: DICOM Gamma Curve  
Ack [j][ ][Set ID][ ][OK/NG][Data][x]  
43  
23. Color Temp (Command: k u)  
This adjusts the screen color temperature.  
Transmission [k][u][ ][Set ID][ ][Data][Cr]  
Data  
00: Custom  
02: 8500K  
04: Manual  
01: 6500K  
03: 9300K  
Ack [u][ ][Set ID][ ][OK/NG][Data][x]  
24. Red Gain (Command: j w)  
This adjusts the red gain.  
Transmission [j][w][ ][Set ID][ ][Data][Cr]  
Data Min: 00 - Max: 64  
Ack [w][ ][Set ID][ ][OK/NG][Data][x]  
25. Green Gain (Command: j y)  
This adjusts the green gain.  
Transmission [j][y][ ][Set ID][ ][Data][Cr]  
Data Min: 00 - Max: 64  
Ack [y][ ][Set ID][ ][OK/NG][Data][x]  
26. Blue Gain (Command: j z)  
This adjusts the blue gain.  
Transmission [j][z][ ][Set ID][ ][Data][Cr]  
Data Min: 00 - Max: 64  
Ack [z][ ][Set ID][ ][OK/NG][Data][x]  
27. Language (Command: f i)  
This adjusts the language of the OSD.  
Transmission [f][i][ ][Set ID][ ][Data][Cr]  
English - Korean (17 languages)  
Ack [i][ ][Set ID][ ][OK/NG][Data][x]  
44  
28. SMART ENERGY SAVING (Command: m k)  
This adjusts the SMART ENERGY SAVING feature.  
Transmission [m][k][ ][Set ID][ ][Data][Cr]  
Data 00: High  
02: Off  
01: Low  
Ack [k][ ][Set ID][ ][OK/NG][Data][x]  
29. LED Control Button (Command: m l)  
Adjusts how long the control button LEDs remain lit.  
Transmission [m][l][ ][Set ID][ ][Data][Cr]  
Data 00: Always On  
02: 10sec time out  
01: 20sec time out  
03: 5sec time out  
Ack [l][ ][Set ID][ ][OK/NG][Data][x]  
30. DVI Power Supply (Command: m m)  
This controls the DVI Power Supply feature.  
Transmission [m][m][ ][Set ID][ ][Data][Cr]  
Data 00: On  
01: Off  
Ack [m][ ][Set ID][ ][OK/NG][Data][x]  
31. Auto Screen Off (Command: m n)  
This adjusts the time after which the screen turns off automatically when there are no monitor signals.  
Transmission [m][n][ ][Set ID][ ][Data][Cr]  
Data 00: On  
01: Off  
Ack [n][ ][Set ID][ ][OK/NG][Data][x]  
32. DisplayPort 1.2 (Command: m o)  
This enables or disables DisplayPort 1.2.  
Transmission [m][o][ ][Set ID][ ][Data][Cr]  
Data 00: Enable  
01: Disable  
Ack [o][ ][Set ID][ ][OK/NG][Data][x]  
45  
33. OSD Lock (Command: k m)  
This controls the OSD Lock feature.  
Transmission [k][m][ ][Set ID][ ][Data][Cr]  
Data 00: Off  
01: On  
Ack [m][ ][Set ID][ ][OK/NG][Data][x]  
34. Reset (Command: f k)  
This controls the reset operation.  
Transmission [f][k][ ][Set ID][ ][Data][Cr]  
Data 00: Picture Reset  
02: User Preset Reset  
01: Factory Reset  
Ack [k][ ][Set ID][ ][OK/NG][Data][x]  
46  
35. Failover Input Switch (Command: k z)  
Controls the Failover Input Switch function.  
Transmission [k][z][ ][Set ID][ ][Data][Cr]  
Data  
00: Off  
01: On  
Ack [z][ ][Set ID][ ][OK/NG][Data][x]  
36. Main Input (Command: k v)  
Controls the input of the Failover Main.  
Transmission [k][v][ ][Set ID][ ][Data][Cr]  
Data  
00: SDI  
01: DVI  
03: DisplayPort  
02: HDMI  
Ack [v][ ][Set ID][ ][OK/NG][Data][x]  
37. Failover Input (Command: k w)  
Controls the input of the Failover.  
Transmission [k][w][ ][Set ID][ ][Data][Cr]  
Data  
00: SDI  
01: DVI  
02: HDMI  
03: DisplayPort  
Ack [w][ ][Set ID][ ][OK/NG][Data][x]  
To obtain the source code under GPL, LGPL, MPL, and other  
open source licenses, that is contained in this product, please  
In addition to the source code, all referred license terms,  
warranty disclaimers and copyright notices are available for  
download.  
LG Electronics will also provide open source code to you  
on CD-ROM for a charge covering the cost of performing  
such distribution (such as the cost of media, shipping, and  
handling) upon email request to [email protected]. This  
offer is valid for three (3) years from the date on which you  
purchased the product.  
Supplier's Declaration of Conformity  
Trade Name  
LG  
Responsible Party LG Electronics USA, Inc.  
Address  
111 Sylvan Avenue, North Building,  
Englewood Cliffs, NJ 07632  
E-mail  
Read the Owner's Manual (CD) carefully and keep it at  
hand. Please note that the label attached to the product  
provides information for product support.  
WARNING: This equipment is compliant with Class A of  
CISPR 32. In a residential environment this equipment may  
cause radio interference.  
Model  
Serial No.  

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