LG Electronics Computer Monitor E1951C User Manual
OWNER’S MANUAL  
LED LCD MONITOR  
Please read this manual carefully before operating  
your set and retain it for future reference.  
LED LCD MONITOR MODELS  
E1951S  
E1951T  
E1951C  
E2251VR E2251VQ  
E2051S E2051T  
E2251S E2251T  
E2351T  
E2051C E2351VR E2351VQ  
E2251C  
E2351TC  
www.lg.com  
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ASSEMBLING AND PREPARING  
3
ASSEMBLING AND PREPARING  
Unpacking  
Check your product box for the following items. If there are any missing accessories, contact the local  
dealer where you purchased your product. The illustrations in this manual may differ from the actual product  
and accessories.  
CD(Owner's Manual) /  
Card  
D-SUB Cable  
(This signal cable may be attached  
DVI-D Cable  
(In some countries, this  
to this product before shipping out.) accessory may not be provided.)  
Power Cord  
AC-DC Adapter  
Screws for Assembly  
2 EA  
Stand Body  
CAUTION  
Stand Base  
Do not use any unapproved accessories to ensure the safety and product life span.  
Any damages or injuries by using unapproved accessories are not covered by the warranty.  
y
y
NOTE  
The accessories supplied with your product may vary depending on the model.  
Product specifications or contents in this manual may be changed without prior notice due to upgrade  
of product functions.  
y
y
User should use shielded signal interface cables (RGB cable/ DVI-D cable) with ferrite cores to  
maintain standard compliance for the product.  
y
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ASSEMBLING AND PREPARING  
4
Parts and buttons  
Power Indicator  
Lighting On: Turned on  
Lighting Off: Turned off  
y
y
(Power Button)  
Button ("CUSTOMIZING SETTINGS" on page 14)  
E1951S E2051S E2251S  
E2251VR E2251VQ  
E1951C E2051C E2251C  
E2351VR E2351VQ  
DC-IN /  
䏳㵎幑‣  
HDMI  
D-SUB  
DC-IN /  
䏳㵎幑‣  
DVI-D  
D-SUB  
E1951T E2051T  
E2251T E2351T E2351TC  
DC-IN /  
䏳㵎幑‣  
DVI-D  
D-SUB  
Connection panel (See p.11)  
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ASSEMBLING AND PREPARING  
5
Button  
Description  
MENU  
Accesses the main menus.(See p.15)  
Left First Button  
OSD LOCKED/  
UNLOCKED  
This function allows you to lock the current control settings, so  
that they cannot be inadvertently changed.  
Press and hold the Left First Button for several seconds.  
The message "OSD LOCKED" should appear.  
You can unlock the OSD controls at any time by pushing the  
Left First Button for several seconds. The message "OSD  
UNLOCKED" should appear.  
SUPER+ RESOLUTION  
DUAL  
Use this button to enter the SUPER+ RESOLUTION menu. For more information.(See p.17)  
Use this button to enter the DUAL menu.  
For more information.(See p.18)  
AUTO  
Press the AUTO button on the MONITOR SETUP OSD menu to automatically adjust the  
screen.  
(Only supported in Analog Mode)  
The best display mode  
E1951S/ E1951T/  
E1951C  
1366 x 768  
1600 x 900  
1920 x 1080  
E2051S/ E2051T/  
E2051C  
E2251S/ E2251T/  
E2251C/ E2251VR/  
E2251VQ/ E2351TC  
E2351T/ E2351VR  
E2351VQ  
VOLUME (Only HDMI mode) E2251VR/ E2351VR/ E2251VQ/ E2351VQ  
Adjust the volume of the Monitor.(See p.17)  
INPUT  
You can choose the input signal.  
When two input signals are at least are connected, you can select the input signal  
(D-SUB/ DVI-D/ HDMI) you want.  
y
When only one signal is connected, it is automatically detected. The default setting is  
D-SUB.  
y
EXIT  
Exit the OSD(On Screen Display).  
Turns the power on or off.  
(Power Button)  
Power Indicator  
The power indicator stays blue if the display is running  
properly (On Mode). If the display is in Sleep Mode, the power  
indicator blinks blue.  
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ASSEMBLING AND PREPARING  
6
Setting up the Monitor  
WARNING  
If you do not fasten the screws, the monitor  
may fall, which may result in damage to the  
product.  
y
Assembling the Stand Body and Base  
Place the Monitor with the screen side down on  
a flat and cushioned surface.  
1
Check the direction of the Stand Base and  
assemble it with the Stand Body. Using a  
coin, turn the screw clockwise to secure the  
Stand Base.  
4
Attach the Stand Body from the Monitor.  
2
Insert the two Lockers of the Stand Body right  
into the groove of the Monitor head and secure  
Stand Body  
them by pressing the left and right bottom  
sides.  
Stand Base  
Coin  
CAUTION  
This illustration depicts the general type of  
connection. Your monitor may differ from the  
items shown in the picture.  
Do not carry the product upside down  
holding only the stand base. The product  
may fall and get damaged or injure your foot.  
Applying excessive force when fastening  
screws may cause damage to the monitor.  
Damage caused in this way will not be  
covered by the product warranty.  
y
Locker  
Secure the Stand Body the monitor using 2  
3
screws.  
y
y
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ASSEMBLING AND PREPARING  
7
Mounting on a table  
WARNING  
When you adjust the angle, do not hold the  
bottom of the Monitor frame as shown on  
the following illustration, as it may injure your  
fingers.  
Lift and tilt the Monitor into its upright position  
on a table.  
1
Leave a 10 cm (minimum) space from the wall  
for proper ventilation.  
10 cm  
10 cm  
10 cm  
10 cm  
Do not touch or press the screen when  
adjusting the angle of the monitor.  
Connect the AC-DC Adapter and Power Cord  
to a wall outlet.  
2
NOTE  
Tilt from +15 to -5 degrees up or down to adjust  
the angle of the Monitor to suit your view.  
- 5  
15  
DC-IN /  
䏳㵎幑‣  
Front  
Rear  
CAUTION  
Disconnect the power cord first, and then move  
or install the Monitor. Otherwise electric  
shock may occur.  
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ASSEMBLING AND PREPARING  
8
Using the Kensington security system  
Detaching the Stand Base and the  
Stand Body  
The Kensington security system connector is  
located at the back of the Monitor. For more  
information of installation and using, refer to the  
manual supplied with the Kensington security  
system or visit http://www.kensington.com.  
Place the Monitor with the screen side down on  
a flat and cushioned surface.  
1
Connect the Kensington security system cable  
between the Monitor and a table.  
Using a coin, turn the screw in the Stand Base  
counterclockwise. Detach the Stand Base from  
the Stand Body.  
2
NOTE  
The Kensington security system is optional.  
You can obtain it from most electronics stores.  
Remove the 2 screws and detach the Stand  
Body from the monitor.  
3
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ASSEMBLING AND PREPARING  
9
Please use a VESA standard as below.  
5
y
Mounting on a wall  
784.8 mm (30.9 inch) and under  
For proper ventilation, allow a clearance of 10 cm  
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.  
* Wall Mount Pad Thickness : 2.6 mm  
Φ
* Screw : 4.0 mm x Pitch 0.7 mm x  
Length 10 mm  
787.4 mm (31.0 inch) and above  
* Please use VESA standard wall mount pad  
and screws.  
y
Model  
E1951S  
E2051S  
E2251S  
E1951T  
E1951C  
E2051C  
E2251C  
E2251VR  
10 cm  
10 cm  
10 cm  
E2051T E2351VR  
10 cm  
E2251VQ  
E2251T  
E2351T  
E2351TC  
E2351VQ  
VESA (A x B)  
Screw Size  
75 x 75  
M4  
Number of screws  
4
Wall mount bracket  
(optional)  
RW120  
If intend to mount the Monitor to a wall, an optional  
third-party wall mount must be purchased.  
When you install the Monitor using the wall  
mounting interface (optional parts), attach it  
carefully so it will not fall.  
VESA (A x B)  
y
A
B
Please use screws and a wall mount interface  
in accordance with VESA Standards.  
If you use screws longer than standard, the  
monitor might be damaged internally.  
1
2
If you use improper screws, the product might  
be damaged and drop from mounted position.  
In this case, LG Electronics is not responsible  
for it.  
3
VESA compatible only with respect to screw  
mounting interface dimensions and mounting  
screw specifications.  
4
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ASSEMBLING AND PREPARING  
10  
CAUTION  
Disconnect the power cord first before  
moving or installing the Monitor. Otherwise  
electric shock may occur.  
If you install the Monitor on a ceiling or  
slanted wall, it may fall and result in severe  
injury.  
y
y
Use only an authorized LG wall mount and  
contact a local dealer or qualified personnel.  
Do not over tighten the screws as this may  
cause damage to the Monitor and void your  
warranty.  
y
y
Use 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.  
y
NOTE  
Only use screws that are listed on the VESA  
standard screw specifications.  
The wall mount kit will include an installation  
manual and necessary parts.  
The wall mount bracket is optional. You can  
obtain additional accessories from your local  
dealer.  
y
y
y
The length of screws may differ depending  
on the wall mount. Be sure to use the proper  
length.  
For more information, refer to the  
instructions supplied with the wall mount.  
y
y
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USING THE MONITOR SET  
11  
USING THE MONITOR  
Connecting to a PC  
E2251VR E2351VR E2251VQ E2351VQ  
Your Monitor 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.  
y
HDMI  
DC-IN /  
䏳㵎幑‣  
DVI-D  
D-SUB  
D-SUB connection  
Transmits analog video from your PC to the  
Monitor. Connect the PC and the Monitor with the  
supplied D-sub 15 pin signal cable as shown in the  
following illustrations.  
E1951S E2051S E2251S  
E1951C E2051C E2251C  
DC-IN /  
䏳㵎幑‣  
D-SUB  
RGB OUT  
NOTE  
RGB OUT  
Apple Adapter  
y
An adapter may be needed for Apple  
computers. This adapter can be purchased  
from Apple.  
DC-IN /  
䏳㵎幑‣  
DVI-D  
D-SUB  
E1951T E2051T E2251T  
E2351T  
E2351TC  
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USING THE MONITOR SET  
12  
DVI-D connection  
CAUTION  
Transmits the digital video signal from your PC to  
the Monitor. Connect the PC and the Monitor  
set with the DVI-D cable as shown the following  
illustrations.  
Connect the signal  
input cable and tighten  
it by turning the screws  
y
clockwise.  
E1951T E2051T E2251T  
Do not press the screen with your finger for  
a long time as this may result in temporary  
distortion on the screen.  
Avoid displaying a fixed image on the  
screen for a long period of time to prevent  
image burn. Use a screensaver if possible.  
y
y
E2351T  
E2351TC  
DC-IN /  
䏳㵎幑‣  
DVI-D  
D-SUB  
DVI OUT  
E2251VR E2351VR E2251VQ E2351VQ  
HDMI  
DC-IN /  
䏳㵎幑‣  
DVI-D  
D-SUB  
DVI OUT  
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USING THE MONITOR SET  
13  
Self Image Setting Function  
HDMI connection  
Press the power button on the front panel to turn  
the power on. When monitor power is turned on,  
the "Self Image Setting" Function is executed  
automatically. (Only supported in Analog Mode)  
Transmits the digital video and audio signals from  
your PC or A/V to the Monitor. Connect the PC or  
A/V and the Monitor with the HDMI cable as shown  
in the following illustrations. When the HDMI cable  
is connected, you can listen to the sound through  
headphones, earphones or an external speaker.  
E2251VR E2351VR E2251VQ E2351VQ  
HDMI  
DC-IN /  
䏳㵎幑‣  
D
D-SUB  
NOTE  
"Self Image Setting" Function.  
y
y
This function provides the user with optimal  
display settings.When the user connects  
the monitor for the first time, this function  
automatically adjusts the display to optimal  
settings for individual input signals.(Only  
supported in Analog Mode)  
HDMI OUT  
HDMI OUT  
NOTE  
‘AUTO’ Function.  
When you want to use two PC in our Monitor,  
please connect the signal cable(D-SUB/  
DVI-D/ HDMI) respectively in Monitor.  
If you turn the Monitor on while it is cold, the  
screen may flicker. This is normal.  
Some red, green, or blue spots may appear  
on the screen. This is normal.  
Sound output is available only in HDMI input  
mode. The quality of the sound may be  
reduced depending on the performance of  
headphones, earphones or external speaker.  
y
When you encounter problems such as  
blurry screen, blurred letters, screen flicker  
or tilted screen while using the device or  
after changing screen resolution, press the  
AUTO function button to improve resolution.  
(Only supported in Analog Mode)  
y
y
y
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CUSTOMIZING SETTINGS  
14  
CUSTOMIZING SETTINGS  
Accessing The Main Menus  
Press any button on the front of the Monitor to display the MONITOR SETUP OSD menu.  
1
2
3
Press the desired menu item.  
Change the value of the menu item by pressing the buttons on the front of the Monitor.  
To return to the upper menu or set other menu items, use the up arrow ( ) button.  
Select EXIT to leave the OSD menu.  
4
Monitor set Buttons  
MENU (See p.15)  
AUTO (See p.5)  
EXIT  
Sets the screen options.  
Optimizes the resolution.  
Exits the OSD menu.  
MONITOR SETUP  
MENU  
SUPER+  
RESOLUTION  
DUAL  
AUTO  
VOLUME  
INPUT  
EXIT  
SUPER+ RESOLUTION  
DUAL (See p.18)  
VOLUME (See p.17)  
INPUT  
(See p.17)  
Sets the external input.  
NOTE  
Different menu items are enabled depending on the type of input signal and model.  
Menu  
SUPER+  
DUAL AUTO VOLUME INPUT EXIT  
RESOLUTION  
E1951S/ E2051S/ E2251S  
E1951C/ E2051C/ E2251C  
O
O
X
X
O
O
O
O
X
X
X
O
O
E1951T/ E2051T/ E2251T/ E2351T/  
E2351TC  
O
E2251VR/ E2351VR (Analog/ Digital)  
E2251VR/ E2351VR (HDMI)  
O
O
O
O
O
O
X
X
O
O
O
O
O
X
O
X
X
O
X
O
O
O
O
O
O
O
O
E2251VQ/ E2351VQ (Analog/ Digital)  
E2251VQ/ E2351VQ (HDMI)  
O
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CUSTOMIZING SETTINGS  
15  
Customizing Settings  
MENU Settings  
MENU  
BRIGHTNESS  
100  
Press any button on the front of the Monitor to display the  
1
2
ORIGINAL RATIO  
COLOR TEMP  
PRESET  
RED  
GREEN  
WIDE  
USER  
WARM  
MONITOR SETUP OSD menu.  
Press the MENU button to display the options in the OSD  
50  
50  
50  
70  
menu.  
BLUE  
Set the options by pressing the ◄ or ► or ▼ buttons.  
3
4
CONTRAST  
BLACK LEVEL  
LANGUAGE  
RTC  
LOW  
ENGLISH  
ON  
Select EXIT to leave the OSD menu.  
To return to the upper menu or set other menu items, use the  
up arrow ( ) button.  
SUPERENEYGYSAVING  
FACTORY RESET  
NO  
EXIT  
The available MENU settings are described below.  
Menu  
Analog Digital  
HDMI  
O
Description  
BRIGHTNESS  
ORIGINAL RATIO  
Adjusts the brightness of the screen.  
WIDE  
O
O
Switch to full screen mode according to input image signal.  
ORIGINAL  
O
O
O
Change the input image signal ratio to original.  
* This function works only if input resolution is lower than Monitor  
ratio (16:9).  
COLOR TEMP  
PRESET  
Select the screen color.  
WARM: Set the screen to warm color temperature (more red).  
MEDIUM: Set the screen to medium color temperature.  
COOL: Set the screen to cool color temperature (More blue).  
y
y
y
O
O
O
USER  
RED: Set your own red color levels.  
GREEN: Set your own green color levels.  
BLUE: Set your own blue color levels.  
y
y
y
CONTRAST  
Adjusts the contrast of the screen.  
O
X
O
X
O
O
O
O
BLACK LEVEL  
(Only supported  
in HDMI mode)  
You can set the offset level. If you select 'HIGH', the screen will be  
bright and if you select ‘LOW’, the screen will be dark.  
y Offset: As the criteria for video signal, it is the darkest screen  
the monitor can show.  
LANGUAGE  
Changes the menu language.  
O
O
O
O
RTC  
If you set ON, you enable the Response Time Control function and  
reduce the afterimage of the screen.  
If you set OFF, you disable the Response Time Control function  
and operate at panel response time.  
(Only supported in  
E2251VQ, E2351VQ  
model)  
SUPER ENERGY  
SAVING  
Change the SUPER ENERGY SAVING function. (See p.16)  
O
O
O
O
O
O
FACTORY RESET  
Returns the monitor to original factory settings except language.  
Analog: D-SUB(Analog signal) input.  
Digital: DVI-D(Digital signal) input.  
HDMI: HDMI(Digital signal) input.  
y
y
y
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CUSTOMIZING SETTINGS  
16  
SUPER ENERGY SAVING Settings  
SUPER ENERGY SAVING  
Press any button on the front of the Monitor to display  
the MONITOR SETUP OSD menu.  
1
2
3
4
ON  
OFF  
RESET  
Press the MENU button to display the options in the  
OSD Menu.  
SUPER  
SAVING  
: 5 W/h  
TOTAL POWER REDUCTION: 20 W  
TOTAL CO2 REDUCTION: 16 g  
LED SAVING  
Select SUPER ENERGY SAVING by pressing the  
▼ button.  
: 12 W/h  
Enter to SUPER ENERGY SAVING by pressing the  
► button.  
OK  
EXIT  
Set the options by pressing ◄ or ► buttons.  
5
6
Select EXIT to leave the OSD menu.  
To return to the upper menu or set other menu items,  
use the up arrow ( ) button.  
The available SUPER ENERGY SAVING settings are described below.  
Menu  
Description  
ON  
Enables SUPER ENERGY SAVING.  
OFF  
Disables SUPER ENERGY SAVING.  
RESET  
Resets the values of total energy consumption reduction and CO2 emission reduction estimates.  
NOTE  
TOTAL POWER REDUCTION: How much power is saved while using the monitor.  
TOTAL CO2 REDUCTION: Estimated CO2 not used by activating the Super Energy Saving function.  
SAVING DATA(W/h)  
y
y
y
470 mm (18.5 inch) 508 mm (20 inch) 546 mm (21.5 inch) 584 mm (23 inch)  
SUPER SAVING  
LED SAVING  
3 W/h  
3 W/h  
3 W/h  
4 W/h  
5 W/h  
18 W/h  
15 W/h  
12 W/h  
Saving Data depends on the Panel. So,those values should be different from each panel and panel  
vendor.  
y
LG calculated these values by using “broadcast video signal”.  
LED Saving means how much power can be saved using a WLED Panel instead of CCFL panel.  
SUPER SAVING means how much power can be saved using the SUPER ENERGY SAVING  
function.  
y
y
y
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CUSTOMIZING SETTINGS  
17  
SUPER+ RESOLUTION  
SUPER+ RESOLUTION Settings  
Press any button on the front of the Monitor to display  
the MONITOR SETUP OSD menu.  
1
2
NORMAL  
LOW  
MEDIUM  
HIGH  
EXIT  
Press the SUPER+ RESOLUTION button to display  
the options in the OSD menu.  
Set the options by pressing ◄ or ► buttons.  
3
4
Select EXIT to leave the OSD menu.  
To return to the upper menu or set other menu items,  
use the up arrow ( ) button.  
OK  
EXIT  
The available SUPER+ RESOLUTION settings are described below.  
Menu  
NORMAL  
Description  
Select this option for everyday viewing. SUPER+ RESOLUTION is turned off  
in this mode.  
LOW  
Select this option for viewing natural and soft images.  
It is suitable for still images or video with little movement.  
MEDIUM  
HIGH  
Select this option for eye-comforting viewing between LOW and HIGH modes.  
It is suitable for UCC and SD videos.  
Select this option for viewing vivid and clear images.  
It is suitable for high resolution videos and games.  
NOTE  
SR (SUPER+ RESOLUTION) will help remove noise from video.  
y
VOLUME Settings (Only supported in HDMI)  
VOLUME  
Press any button on the front of the Monitor to display the  
MONITOR SETUP OSD menu.  
1
2
30  
Press the VOLUME button to display the options in the OSD  
menu.  
EXIT  
EXIT  
Adjust the VOLUME by pressing ◄ or ► buttons.  
3
4
Select EXIT to leave the OSD menu.  
To return to the upper menu or set other menu items, use the up  
arrow ( ) button.  
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CUSTOMIZING SETTINGS  
18  
DUAL PACKAGE  
DUAL MONITOR  
►
DUAL MONITOR Settings  
Press any button on the front of the Monitor to display the  
MONITOR SETUP OSD menu.  
1
Press the DUAL button to display the options in the OSD menu.  
Set the options by pressing ▼ and then ◄ and ► buttons.  
Select EXIT to leave the OSD menu.  
2
3
4
OFF  
EXTENDED  
CLONE  
EXIT  
To return to the upper menu or set other menu items, use the  
up arrow ( ) button.  
The available DUAL MONITOR settings are described below.  
Menu  
Description  
Turns the DUAL MONITOR feature off.  
DUAL MONITOR OFF  
EXTENDED  
Extends the desktop of the primary monitor to the secondary monitor.  
EXIT  
CLONE  
Shows the same video on both monitors.  
DUAL PACKAGE  
DUAL WEB  
►
DUAL WEB Settings  
Press any button on the front of the Monitor to display the  
MONITOR SETUP OSD menu.  
1
Press the DUAL button to display the options in the OSD menu.  
Set the options by pressing ▼ and then ◄ and ► buttons.  
Select EXIT to leave the OSD menu.  
2
3
4
ON  
OFF  
EXIT  
To return to the upper menu or set other menu items, use the up  
arrow ( ) button.  
The available DUAL WEB settings are described below.  
Menu  
Description  
DUAL WEB  
ON  
Automatically arranges (snaps) web pages to each half of the screen.  
OFF  
Turns the DUAL WEB feature off.  
NOTE  
When the monitor is in power saving mode, pressing any button and then selecting DUAL, the monitor  
will return to normal operation.  
The Dual Package program provided with the monitor should be installed on the PC to use the DUAL  
MONITOR and DUAL WEB functions.  
y
y
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TROUBLESHOOTING  
19  
TROUBLESHOOTING  
Check the following before calling for service.  
No image appears  
Is the power cord of the display  
connected?  
Check and see if the power cord is connected properly to the power  
outlet.  
y
Is the power indicator light on?  
Is the power indicator blink?  
Press the Power button.  
y
y
If the display is in power saving mode, try moving the mouse or  
pressing any key on the keyboard to bring up the screen.  
Try to turn on the PC.  
y
y
Do you see an "OUT OF RANGE"  
message on the screen?  
This message appears when the signal from the PC (video card) is  
out of horizontal or vertical frequency range of the display. See the  
'Specifications' section of this manual and configure your display  
again.  
Do you see a "CHECK SIGNAL  
CABLE" message on the screen?  
This message appears when the signal cable between your PC and  
your display is not connected. Check the signal cable and try again.  
y
Do you see a "OSD LOCKED" message on the screen?  
Do you see “OSD LOCKED” when  
you push Left First Button?  
You can secure the current control settings, so that they cannot be  
inadvertently changed. You can unlock the OSD controls at any time  
y
by pushing the left first button for several seconds: the message “OSD  
UNLOCKED” will appear.  
Display image is incorrect  
Display Position is incorrect.  
Press the AUTO button to automatically adjust your display image to  
the ideal setting.  
y
y
On the screen background, vertical  
bars or stripes are visible.  
Press the AUTO button to automatically adjust your display image to  
the ideal setting.  
Any horizontal noise appearing in  
any image or characters are not  
clearly portrayed.  
Press the AUTO button to automatically adjust your display image to  
the ideal setting.  
Check Control Panel ► Display ► Settings and adjust the display  
to the recommended resolution or adjust the display image to the ideal  
setting. Set the color setting higher than 24 bits (true color).  
y
y
CAUTION  
Check Control Panel ► Display ► Settings and see if the frequency or the resolution were  
changed. If yes, readjust the video card to the recommend resolution.  
y
y
y
If the recommended resolution (optimal resolution) is not selected, letters may be blurred and the  
screen may be dimmed, truncated or biased. Make sure to select the recommend resolution.  
The setting method can differ by computer and O/S (Operating System), and resolution mentioned  
above may not be supported by the video card performance. In this case, please ask to the computer  
or the video card manufacturer.  
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TROUBLESHOOTING  
20  
Display image is incorrect  
The screen color is mono or  
abnormal.  
Check if the signal cable is properly connected and use a screwdriver  
to fasten if necessary.  
y
Make sure the video card is properly inserted in the slot.  
Set the color setting higher than 24 bits (true color) at Control Panel  
► Settings.  
y
y
The screen blinks.  
Check if the screen is set to interlace mode and if yes, change it to the  
recommend resolution.  
y
Do you see an "Unrecognized monitor, Plug&Play (VESA DDC) monitor found" message?  
Have you installed the display  
driver?  
A Windows display driver is included on the CD. 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
y
The Audio function is not working  
Picture OK & No sound.  
Check whether volume is "0".  
Check sound muted.  
HDMI cable installed properly.  
Head phone cable installed properly.  
Check sound format. Not support to compressed sound format.  
y
y
y
y
y
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SPECIFICATIONS  
21  
SPECIFICATIONS  
E1951S  
E1951T  
E1951C  
Display  
Screen Type  
47.01 cm (18.51 inch) Flat Panel Active matrix-TFT LCD  
Anti-Glare coating  
Visible diagonal size: 47.01 cm  
Pixel Pitch  
0.3 mm x 0.3 mm (Pixel Pitch)  
Sync Input  
Video Input  
Horizontal Frequency 30 kHz to 61 kHz (Automatic)  
Vertical Frequency  
Input Form  
56 Hz to 75 Hz (Automatic)  
E1951S/ E1951C  
E1951T  
Separate Sync.  
Separate Sync. Digital  
Signal Input  
E1951S/ E1951C  
E1951T  
15 pin D-SUB Connector  
15 pin D-SUB Connector /DVI-D Connector (Digital)  
Input Form  
E1951S/ E1951C  
E1951T  
RGB Analog (0.7 Vp-p/ 75 ohm)  
RGB Analog (0.7 Vp-p/ 75 ohm), Digital  
Resolution  
Plug & Play  
Max  
E1951S/ E1951C  
E1951T  
D-SUB(Analog) : 1366 x 768 @ 60 Hz  
D-SUB(Analog) / DVI-D(Digital): 1366 x 768 @ 60 Hz  
VESA 1366 x 768 @ 60 Hz  
Recommend  
E1951S/ E1951C  
E1951T  
DDC 2B(Analog)  
DDC 2B(Analog,Digital)  
Power Consumption  
On Mode : 20 W(Typ.)  
Sleep Mode ≤ 0.5 W  
Off Mode ≤ 0.5 W  
Power Input  
19 V  
1.3 A  
AC-DC Adapter  
Type ADS-40SG-19-3 19025G, manufactured by HONOR Electronic  
Dimensions  
(Width x Height x Depth)  
With Stand  
Without Stand  
2 kg  
44.94 cm x 17.26 cm x 35.6 cm  
44.94 cm x 3.35 cm x 27.9 cm  
Weight  
Tilt Range  
-5° to 15°  
Environmental  
conditions  
Operating Temperature 10°C to 35 °C  
Operating Humidity  
20 % to 80 % non-Condensing  
Storage Temperature  
Storage Humidity  
-10°C to 60 °C  
5 % to 90 % non-Condensing  
Stand Base  
Power cord  
Attached ( ), Detached (O)  
Wall-outlet type  
Product specifications shown above may be changed without prior notice due to upgrade of product  
functions.  
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SPECIFICATIONS  
22  
E2051S E2051T E2051C  
Display  
Screen Type  
50.805 cm (20.0 inch) Flat Panel Active matrix-TFT LCD  
Anti-Glare coating  
Visible diagonal size: 50.805 cm  
Pixel Pitch  
0.2766 mm x 0.2766 mm (Pixel Pitch)  
Sync Input  
Horizontal Frequency 30 kHz to 83 kHz (Automatic)  
Vertical Frequency  
Input Form  
E2051S/ E2051C  
E2051T  
56 Hz to 75 Hz (Automatic)  
Separate Sync.  
Separate Sync. Digital  
Video Input  
Resolution  
Signal Input  
E2051S/ E2051C  
E2051T  
15 pin D-SUB Connector  
15 pin D-SUB Connector /DVI-D Connector (Digital)  
Input Form  
E2051S/ E2051C  
E2051T  
RGB Analog (0.7 Vp-p/ 75 ohm)  
RGB Analog (0.7 Vp-p/ 75 ohm), Digital  
Max  
E2051S/ E2051C  
E2051T  
D-SUB(Analog) : 1600 x 900 @ 60 Hz  
D-SUB(Analog) / DVI-D(Digital): 1600 x 900 @ 60 Hz  
VESA 1600 x 900 @ 60 Hz  
Recommend  
E2051S/ E2051C  
E2051T  
Plug & Play  
DDC 2B(Analog)  
DDC 2B(Analog,Digital)  
Power Consumption  
On Mode : 21 W(Typ.)  
Sleep Mode ≤ 0.5 W  
Off Mode ≤ 0.5 W  
Power Input  
19 V  
1.3 A  
AC-DC Adapter  
Type ADS-40SG-19-3 19025G, manufactured by HONOR Electronic  
Dimensions  
(Width x Height x Depth)  
With Stand  
Without Stand  
2.197 kg  
48.28 cm x 17.42 cm x 37.5 cm  
48.28 cm x 3.35 cm x 29.7 cm  
Weight  
Tilt Range  
-5° to 15°  
Environmental  
conditions  
Operating Temperature 10°C to 35 °C  
Operating Humidity  
20 % to 80 % non-Condensing  
Storage Temperature  
Storage Humidity  
-10°C to 60 °C  
5 % to 90 % non-Condensing  
Stand Base  
Power cord  
Attached ( ), Detached (O)  
Wall-outlet type  
Product specifications shown above may be changed without prior notice due to upgrade of product  
functions.  
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SPECIFICATIONS  
23  
E2251S E2251T E2251C  
Display  
Screen Type  
54.686 cm (21.53 inch) Flat Panel Active matrix-TFT  
LCD  
Anti-Glare coating.  
Visible diagonal size: 54.686 cm  
0.248 mm x 0.248 mm (Pixel Pitch)  
Pixel Pitch  
Sync Input  
Horizontal Frequency 30 kHz to 83 kHz (Automatic)  
Vertical Frequency  
Input Form  
56 Hz to 75 Hz (Automatic)  
E2251S/ E2251C  
E2251T  
Separate Sync.  
Separate Sync. Digital  
Video Input  
Resolution  
Signal Input  
E2251S/ E2251C  
E2251T  
15 pin D-SUB Connector  
15 pin D-SUB Connector / DVI-D Connector (Digital)  
Input Form  
E2251S/ E2251C  
E2251T  
RGB Analog (0.7 Vp-p/ 75 ohm)  
RGB Analog (0.7 Vp-p/ 75 ohm), Digital  
Max  
E2251S/ E2251C  
E2251T  
D-SUB(Analog) : 1920 x 1080 @ 60 Hz  
D-SUB(Analog) / DVI-D(Digital) : 1920 x 1080 @ 60 Hz  
VESA 1920 x 1080 @ 60 Hz  
Recommend  
E2251S/ E2251C  
E2251T  
Plug & Play  
DDC 2B(Analog)  
DDC 2B(Analog, Digital)  
Power Consumption  
On Mode : 26 W(Typ.)  
Sleep Mode ≤ 0.5 W  
Off Mode ≤ 0.5 W  
Power Input  
AC-DC Adapter  
Dimensions  
19 V  
1.3 A  
Type ADS-40SG-19-3 19025G, manufactured by HONOR Electronic  
With Stand  
Without Stand  
2.477 kg  
51.75 cm x 18.65 cm x 39.4 cm  
51.75 cm x 3.35 cm x 31.7 cm  
(Width x Height x Depth)  
Weight  
Tilt Range  
-5° to 15°  
Environmental  
conditions  
Operating Temperature 10°C to 35 °C  
Operating Humidity  
Storage Temperature  
Storage Humidity  
20 % to 80 % non-Condensing  
-10°C to 60 °C  
5 % to 90 % non-Condensing  
Stand Base  
Power cord  
Attached ( ), Detached (O)  
Wall-outlet type  
Product specifications shown above may be changed without prior notice due to upgrade of product functions.  
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SPECIFICATIONS  
24  
E2251VR E2251VQ  
Display  
Screen Type  
Pixel Pitch  
54.686 cm (21.53 inch) Flat Panel Active matrix-TFT  
LCD  
Anti-Glare coating.  
Visible diagonal size: 54.686 cm  
0.248 mm x 0.248 mm (Pixel Pitch)  
Sync Input  
Video Input  
Resolution  
Horizontal Frequency 30 kHz to 83 kHz (Automatic)  
Vertical Frequency  
56 Hz to 75 Hz (D-SUB, DVI-D)  
56 Hz to 61 Hz (HDMI)  
Input Form  
Signal Input  
Separate Sync. Digital. HDMI  
15 pin D-SUB Connector  
DVI-D Connector (Digital)  
HDMI (TYPE - A) Connector  
Input Form  
Max  
RGB Analog (0.7 Vp-p/ 75 ohm), Digital, HDMI  
D-SUB(Analog) :1920 x 1080 @ 60 Hz  
DVI-D(Digital) / HDMI(Digital) :1920 x 1080 @ 60 Hz  
VESA 1920 x 1080 @ 60 Hz  
Recommend  
Plug & Play  
DDC 2B(Analog, Digital, HDMI)  
On Mode : 26 W(Typ.)  
Sleep Mode ≤ 0.5 W  
Power Consumption  
Off Mode ≤ 0.5 W  
Power Input  
AC-DC Adapter  
Dimensions  
19 V  
1.7 A  
Type ADS-40SG-19-3 19032G, manufactured by HONOR Electronic  
With Stand  
Without Stand  
2.477 kg  
51.75 cm x 18.65 cm x 39.4 cm  
51.75 cm x 3.35 cm x 31.7 cm  
(Width x Height x Depth)  
Weight  
Tilt Range  
-5° to 15°  
Environmental  
conditions  
Operating Temperature 10°C to 35 °C  
Operating Humidity  
Storage Temperature  
Storage Humidity  
20 % to 80 % non-Condensing  
-10°C to 60 °C  
5 % to 90 % non-Condensing  
Stand Base  
Power cord  
Attached ( ), Detached (O)  
Wall-outlet type  
Product specifications shown above may be changed without prior notice due to upgrade of product functions.  
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SPECIFICATIONS  
25  
E2351T E2351TC E2351VR E2351VQ  
Display  
Screen Type  
58.42 cm (23 inch) Flat Panel Active matrix-TFT LCD  
Anti-Glare coating  
Visible diagonal size: 58.42 cm  
Pixel Pitch  
0.265 mm x 0.265 mm (Pixel Pitch)  
Sync Input  
Horizontal Frequency 30 kHz to 83 kHz (Automatic)  
Vertical Frequency  
E2351T/ E2351TC  
56 Hz to 75 Hz (Automatic)  
E2351VR/ E2351VQ  
56 Hz to 75 Hz (D-SUB, DVI-D)  
56 Hz to 61 Hz (HDMI)  
Input Form  
E2351T/ E2351TC  
E2351VR/ E2351VQ  
Signal Input  
Separate Sync. Digital  
Separate Sync. Digital. HDMI  
Video Input  
E2351T/ E2351TC  
E2351VR/ E2351VQ  
15 pin D-SUB Connector / DVI-D Connector (Digital)  
15 pin D-SUB Connector / DVI-D Connector (Digital)  
HDMI (TYPE - A) Connector  
Input Form  
E2351T/ E2351TC  
E2351VR/ E2351VQ  
Max  
RGB Analog (0.7 Vp-p/ 75 ohm), Digital  
RGB Analog (0.7 Vp-p/ 75 ohm), Digital, HDMI  
Resolution  
E2351T/ E2351TC  
D-SUB(Analog) / DVI-D (Digital) : 1920 x 1080 @ 60  
Hz  
E2351VR/ E2351VQ  
D-SUB(Analog) : 1920 x 1080 @ 60 Hz  
DVI-D(Digital) / HDMI(Digital) : 1920 x 1080 @ 60 Hz  
Recommend  
VESA 1920 x 1080 @ 60 Hz  
DDC 2B(Analog, Digital )  
Plug & Play  
E2351T/ E2351TC  
E2351VR/ E2351VQ  
DDC 2B(Analog, Digital, HDMI)  
Power Consumption  
On Mode : 30 W(Typ.)  
Sleep Mode ≤ 0.5 W  
Off Mode ≤ 0.5 W  
Power Input  
19 V  
1.7 A  
AC-DC Adapter  
Type ADS-40SG-19-3 19032G, manufactured by HONOR Electronic  
Dimensions  
(Width x Height x Depth)  
With Stand  
Without Stand  
2.724 kg  
54.92 cm x 18.65 cm x 41.2 cm  
54.92 cm x 3.35 cm x 33.5 cm  
Weight  
Tilt Range  
-5° to 15°  
Environmental  
conditions  
Operating Temperature 10°C to 35 °C  
Operating Humidity  
20 % to 80 % non-Condensing  
Storage Temperature  
Storage Humidity  
-10°C to 60 °C  
5 % to 90 % non-Condensing  
Stand Base  
Power cord  
Attached ( ), Detached (O)  
Wall-outlet type  
Product specifications shown above may be changed without prior notice due to upgrade of product  
functions.  
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SPECIFICATIONS  
26  
Preset Modes (Resolution)  
E1951S/ E1951T/ E1951C  
Display Modes (Resolution) Horizontal Frequency(kHz) Vertical Frequency(Hz)  
720 x 400  
640 x 480  
640 x 480  
800 x 600  
800 x 600  
832 x 624  
1024 x 768  
1024 x 768  
1366 x 768  
31.468  
31.469  
37.500  
37.879  
46.875  
49.725  
48.363  
60.023  
47.712  
70.08  
59.94  
75  
60.317  
75  
74.55  
60  
75.029  
59.790  
Recommend Mode  
E2051S/ E2051T/ E2051C  
Display Modes (Resolution) Horizontal Frequency(kHz) Vertical Frequency(Hz)  
720 x 400  
640 x 480  
640 x 480  
800 x 600  
800 x 600  
1024 x 768  
1024 x 768  
1152 x 864  
1600 x 900  
31.468  
31.469  
37.500  
37.879  
46.875  
48.363  
60.023  
67.500  
60.000  
70.08  
59.94  
75  
60.317  
75  
60  
75.029  
75  
60  
Recommend Mode  
E2251S/ E2251T/ E2251C/ E2251VR/ E2251VQ/ E2351T/ E2351TC/ E2351VR/ E2351VQ  
Display Modes (Resolution) Horizontal Frequency(kHz) Vertical Frequency(Hz)  
720 x 400  
31.468  
31.469  
37.500  
37.879  
46.875  
48.363  
60.023  
67.500  
63.981  
79.976  
65.290  
67.500  
70.08  
59.94  
75  
●
●
●
640 x 480  
640 x 480  
800 x 600  
60.317  
75  
800 x 600  
1024 x 768  
1024 x 768  
1152 x 864  
1280 x 1024  
1280 x 1024  
1680 x 1050  
1920 x 1080  
60  
75.029  
75  
●
●
60.020  
75.025  
59.954  
60  
●
Recommend Mode  
● : HDMI PC mode is not supported.  
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SPECIFICATIONS  
27  
HDMI Video Timing  
E2251VR / E2251VQ / E2351VR / E2351VQ  
Display Modes (Resolution)  
Horizontal Frequency(kHz)  
Vertical Frequency(Hz)  
480P  
576P  
720P  
720P  
1080i  
1080i  
1080P  
1080P  
31.50  
31.25  
37.50  
45.00  
28.12  
33.75  
56.25  
67.50  
60  
50  
50  
60  
50  
60  
50  
60  
Indicator  
Mode  
LED Color  
Blue  
On Mode  
Sleep Mode  
Off Mode  
Blinking Blue  
Off  
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PROPER POSTURE  
28  
PROPER POSTURE  
Proper posture for using the Monitor.  
Adjust the Monitor  
and your posture  
to allow you to  
view images at the  
optimal viewing  
angle.  
Adjust the location of  
the Monitor to avoid it  
reflecting light.  
Place your hands  
gently on the  
keyboard, keeping  
your arms bent at  
the elbows and  
horizontally outright.  
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LICENSES  
29  
LICENSES  
Supported licenses may differ by model. For more information of the licenses, visit www.lg.com.  
HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks  
or registered trademarks of HDMI Licensing LLC.  
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Make sure to read the Safety Precautions before  
using the product.  
Keep the Owner’s Manual (CD) in an accessible  
place for future reference.  
The model and serial number of the SET is  
located on the back and one side of the SET.  
Record it below should you ever need service.  
ENERGY STAR is a set of power-saving  
guidelines issued by the U.S.Environmental  
Protection Agency(EPA).  
As an ENERGY STAR Partner LGE  
U. S. A.,Inc. has determined that this  
product meets the ENERGY STAR  
guidelines for energy efficiency.  
MODEL  
SERIAL  
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