LG Electronics Computer Monitor L1740B User Manual

User’s Guide  
L1740B  
L1940B  
Make sure to read the Important Precautions before using the product.  
Keep the User's Guide(CD) in an accessible place for furture reference.  
See the label attached on the back cover and quote this information to your  
dealer when you require service.  
 
Important Precautions  
On Installation  
Do not allow anything to rest upon or roll over the power cord, and do not place  
the display where the power cord is subject to damage.  
Do not use this display near water such as near a bathtub, washbowl, kitchen  
sink, laundry tub, in a wet basement, or near a swimming pool.  
Displays are provided with ventilation openings in the cabinet to allow the release  
of heat generated during operation. If these openings are blocked, built-up heat  
can cause failures which may result in a fire hazard. Therefore, NEVER:  
Block the bottom ventilation slots by placing the display on a bed, sofa, rug, etc.  
Place the display in a built-in enclosure unless proper ventilation is provided.  
Cover the openings with cloth or other material.  
Place the display near or over a radiator or heat source.  
Do not rub or strike the Active Matrix LCD with anything hard as this may scratch,  
mar, or damage the Active Matrix LCD permanently.  
Do not press the LCD screen with your finger for a long time as this may cause  
some afterimages.  
Some dot defects may appear as Red, Green or Blue spots on the screen.  
However, this will have no impact or effect on the display performance.  
If possible, use the recommended resolution to obtain the best image quality for  
your LCD display. If used under any mode except the recommended resolution,  
some scaled or processed images may appear on the screen. However, this is  
characteristic of the fixed-resolution LCD panel.  
On Cleaning  
Unplug the display before cleaning the face of the display screen.  
Use a slightly damp (not wet) cloth. Do not use an aerosol directly on the display  
screen because over-spraying may cause electrical shock.  
On Repacking  
Do not throw away the carton and packing materials. They make an ideal  
container in which to transport the unit. When shipping the unit to another  
location, repack it in its original material.  
On Disposal  
The fluorescent lamp used in this product contains a small amount of mercury.  
Do not dispose of this product with general household waste.  
Disposal of this product must be carried out in accordance to the regulations of  
your local authority.  
A2  
 
Connecting the Display  
Using the Computer  
Before setting up the monitor, ensure that the power to the monitor, the  
computer system, and other attached devices is turned off.  
Unfolding the stand base  
1. Place the monitor with its front  
facing downward on a cushion  
or soft cloth.  
2. Hold down the release button inside the stand and strongly pull out  
the stand with your two hands.  
The stand won't move if you  
don't press release button.  
3. Connect the signal input cable and  
the power cord.  
4. When successfully connected,  
fit the back cap in along the groove.  
A3  
 
Connecting the Display  
Using the Computer  
1.  
Connect the signal cable. When attached, tighten the thumbscrews to secure  
2. the connection.  
Connect the power cord into a proper power outlet that is easily accessible and  
close to the display.  
Power Cord  
Analog signal  
Wall-outlet type  
2
1
PC-outlet type  
PC  
MAC  
Mac 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  
thesupplied cable to a 15 pin 2 row connector.  
3.  
Touch  
button on the front switch panel to turn the  
power on. When monitor power is turned on, the 'Self  
Image Setting Function' is executed automatically.  
(Only Analog Mode)  
A4  
 
Connecting the Display  
Touch button for several seconds on the front switch panel to turn  
the power on.  
NOTE  
‘ Self Image Setting Function’? 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. If you want to adjust the monitor while in use, or wish to  
manually run this function once again, push the ‘SET/AUTO’ button on the front panel of the monitor.  
Otherwise, you may execute the ‘ Factory reset’ option on the OSD adjustment menu. However,  
be aware that this option initializes all the menu items except ‘Language’.  
A5  
 
Control Panel Functions  
Front Panel Controls  
Control  
Function  
Use this button to enter or exit the On Screen Display.  
MENU 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 MENU button for 5 seconds. The  
message "OSD LOCKED" should appear.  
You can unlock the OSD controls at any time by pushing  
the MENU button for 5 seconds. The message "OSD  
UNLOCKED" should appear.  
A6  
 
Control Panel Functions  
Control  
Function  
Use these buttons to select or adjust functions in the On  
Screen Display.  
+
Buttons  
-
hot key  
For more information, refer to page A13  
Use this button to enter a selection in the On Screen  
Display.  
SET/AUTO  
Button  
AUTO IMAGE ADJUSTMENT  
When adjusting your display settings, always press  
the SET/AUTO button before entering the On Screen  
Display(OSD). This will automatically adjust your  
display image to the ideal settings for the current  
screen resolution size (display mode).  
The best display mode is  
17 inch monitor : 1280x1024  
19 inch monitor : 1280x1024  
Power Button  
Use this button to turn the display on or off.  
This Indicator lights up green when the display  
operates normally(On Mode). If the display is in Sleep  
Mode (Energy Saving), this indicator color changes  
to amber.  
Power Indicator  
A7  
 
On Screen Display (OSD) Control Adjustment  
Screen Adjustment  
Making adjustments to the image size, position and operating parameters of  
the display is quick and easy with the On Screen Display Control system. A  
short example is given below to familiarize you with the use of the controls.  
The following section is an outline of the available adjustments and selections  
you can make using the OSD.  
NOTE  
Allow the display to stabilize for at least 30 minutes before making image adjustments.  
To make adjustments in the On Screen Display, follow these steps:  
SET/AUTO  
MENU  
MENU  
+
+
-
-
Press the MENU Button, then the main menu of the OSD appears.  
To access a control, use the or  
becomes highlighted, press the SET/AUTO Button.  
+
Buttons. When the icon you want  
-
-
/
+
Buttons to adjust the image to the desired level. Use the  
Use the  
SET/AUTO Button to select other sub-menu items.  
Push the MENU Button once to return to the main menu to select another  
function. Push the MENU Button twice to exit from the OSD.  
A8  
 
On Screen Display(OSD) Selection and Adjustment  
The following table indicates all the On Screen Display control, adjustment,  
and setting menus.  
Main menu  
Sub-menu  
Reference  
BRIGHTNESS  
CONTRAST  
GAMMA  
To adjust the brightness,  
contrast and gamma of the  
screen  
PICTURE  
PRESET  
6500K  
9300K  
To customize the color of  
the screen  
COLOR  
RED  
GREEN  
BLUE  
HORIZONTAL  
VERTICAL  
CLOCK  
To adjust the position of the  
screen  
POSITION  
To improve the clarity and  
stability of the screen  
TRACKING  
PHASE  
To customize the screen  
status for a user's operating  
environment  
LANGUAGE  
SETUP  
OSD  
HORIZONTAL  
POSITION VERTICAL  
WHITE BALANCE  
POWER INDICATOR  
FACTORY RESET  
MOVIE / TEXT  
FLATRON  
To select or customize  
desired image settings  
F-ENGINE(  
-
)
USER  
NORMAL  
: Adjustable  
NOTE  
The order of icons may differ depending on the model (A9~A13).  
A9  
 
On Screen Display(OSD) Selection and Adjustment  
You were introduced to the procedure of selecting and adjusting an item  
using the OSD system. Listed below are the icons, icon names, and icon  
descriptions of the all items shown on the Menu.  
Press the MENU Button, then the main menu of the OSD appears.  
P I C T U R E  
Menu Name  
Sub-menus  
Icons  
Button Tip  
MENU  
: Exit  
-
+
: Adjust (Decrease/Increase)  
: Enter  
SET  
: Select another sub-menu  
NOTE  
OSD (On Screen Display) menu languages on the monitor may differ from the manual.  
A10  
 
On Screen Display(OSD) Selection and Adjustment  
Main menu  
Sub menu  
Description  
PICTURE  
P I C T U R E  
To adjust the brightness of the screen.  
To adjust the contrast of the screen.  
BRIGHTNESS  
CONTRAST  
GAMMA  
Set your own gamma value. : -50/0/50  
On the monitor, high gamma values  
display whitish images and low gamma  
values display high contrast images.  
MENU : Exit  
: Decrease  
-
+
: Increase  
SET : Select another sub-menu  
COLOR  
C O L O R  
Select the screen color.  
PRESET  
• 6500K: Slightly reddish white.  
• 9300K: Slightly bluish white.  
Set your own red color levels.  
Set your own green color levels.  
Set your own blue color levels.  
RED  
GREEN  
BLUE  
MENU : Exit  
: Decrease  
-
+
: Increase  
SET : Select another sub-menu  
POSITION  
P O S I T I O N  
To move image left and right.  
To move image up and down.  
HORIZONTAL  
VERTICAL  
MENU : Exit  
: Decrease  
-
+
: Increase  
SET : Select another sub-menu  
A11  
 
On Screen Display(OSD) Selection and Adjustment  
Main menu  
Sub menu  
Description  
TRACKING  
T R A C K I N G  
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.  
MENU : Exit  
: Decrease  
-
+
: Increase  
SET : Select another sub-menu  
SETUP  
To choose the language in which the  
control names are displayed.  
LANGUAGE  
S E T U P  
OSD  
POSITION  
To adjust position of the OSD window  
on the screen.  
If the output of the video card is different  
the required specifications, the color  
level may deteriorate due to video  
signal distortion. Using this function, the  
signal level is adjusted to fit into the  
standard output level of the video card  
in order to provide the optimal image.  
Activate this function when white and  
black colors are present in the screen.  
WHITE  
BALANCE  
-
+
M E N U  
S E T U P  
SET  
Use this function to set the power  
indicator on the front side of the monitor  
to ON or OFF.  
If you set OFF, it will go off.  
If you set ON at any time, the power  
indicator will automatically be turned on.  
+
POWER  
INDICATOR  
-
M E N U  
SET  
MENU : Exit  
: Adjust  
-
+
: Adjust  
SET : Select another sub-menu  
FACTORY  
RESET  
Restore all factory default settings except  
"LANGUAGE."  
Press the  
button to reset immediately.  
If this does not improve the screen image, restore the factory default settings.  
If necessary, perform the white balance function again. This function will be enabled only when  
the input signal is an analog signal.  
A12  
 
On Screen Display(OSD) Selection and Adjustment  
The OSD screen will appear when you touch the  
right side of the monitor.  
(-) button at the  
Menu Name  
Icons  
Sub-menu Name  
FLATRON F-ENGINE  
Screen when applied Screen when not applied  
When you execute F-ENGINE, two tones will appear  
on the screen as shown. The applied screen will  
appear on the left side, whereas the non-applied  
screen will appear on the right side.Touch the  
SETbutton to use the adjusted screen.  
Main menu  
Sub menu  
Description  
MOVIE  
TEXT  
This feature lets you easily select the best desired  
image condition optimized to the environment  
(ambient illumination, image types etc).  
MOVIE For animation images in videos or movies  
TEXT For text images (Word processing etc.)  
USER  
User  
You can manually adjust brightness, ACE or RCM.  
You can save or restore the adjusted value even  
when using a different environment setting.  
To adjust the USER sub-menu function,  
Press the SET Button  
(Brightness): Adjusts screen brightness.  
ACE(Adaptive Clarity Enhancer) Selects the clarity mode.  
RCM(Real Color Management) Selects the color mode.  
U S E R  
BRIGHTNESS  
Not applied  
Green enhance  
Flesh tone  
Color Enhance  
0
ACE  
RCM  
1
1
2
2
3
SAVE  
M E N U  
SET  
SAVE  
Select the  
sub-menu using the SET  
button and save the YES value using the -  
buttons.  
NORMAL  
This is under normal operating conditions.  
A13  
 
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.  
Is the power indicator  
light on?  
Touch the Power button.  
Is the power on and the  
power indicator blue?  
Adjust the brightness and the contrast.  
Is the power indicator  
amber?  
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.  
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 an "OUT  
OF RANGE" 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.  
Do you see a "CHECK  
SIGNAL CABLE"  
message on the  
screen?  
Do you see a "OSD LOCKED" message on the screen?  
Do you see OSD  
LOCKEDwhen you  
push MENU button?  
You can secure the current control settings,  
so that they cannot be inadvertently  
changed. You can unlock the OSD controls  
at any time by pushing the MENU button for  
5 seconds: the message  
OSD UNLOCKEDwill appear.  
A14  
 
Troubleshooting  
Display image is incorrect  
Display Position is  
incorrect.  
Press the SET/AUTO button to automatically adjust  
your display image to the ideal setting.  
If the results are unsatisfactory, adjust the image  
position using the H position and V position icon  
in the on screen display.  
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.  
On the screen  
background, vertical  
bars or stripes are  
visible.  
Press the SET/AUTO button to automatically adjust  
your display image to the ideal setting.  
If the results are unsatisfactory, decrease the  
vertical bars or stripes using the CLOCK icon in the  
on screen display.  
Any horizontal noise  
appearing in any  
image or characters  
are not clearly  
Press the SET/AUTO button to automatically adjust  
your display image to the ideal setting.  
If the results are unsatisfactory, decrease the  
horizontal bars using the PHASE icon in the on  
screen display.  
portrayed.  
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).  
The screen color is  
mono or abnormal.  
Check if the signal cable is properly connected and  
use a screwdriver to fasten if necessary.  
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.  
The screen blinks.  
Check if the screen is set to interlace mode and if  
yes, change it to the recommend resolution.  
Make sure the power voltage is high enough, It has  
to be higher than AC100-240V 50/60Hz.  
A15  
 
Troubleshooting  
Have you installed the display driver?  
Have you installed the  
display driver?  
Be sure to install the display driver from the  
display driver CD (or diskette) that comes with  
your display. Or, you can also download the  
Do you see an  
Make sure to check if the video card supports  
Plug&Play function.  
"Unrecognized monitor,  
Plug&Play (VESA DDC)  
monitor found"  
message?  
A16  
 
Specifications  
L1740B  
Display  
17 inches (43.2cm) Flat Panel Active matrix-TFT LCD  
Anti-Glare coating  
17 inches viewable  
0.264 mm pixel pitch  
Sync Input  
Horizontal Freq. Analog : 30 - 83kHz (Automatic)  
Vertical Freq.  
Input Form  
56 - 75Hz (Automatic)  
Separate TTL, Positive/Negative  
SOG (Sync On Green)  
Video Input  
Resolution  
Plug&Play  
Signal Input  
Input Form  
Max  
Recommend  
DDC 2B  
15 pin D-Sub Connector  
RGB Analog (0.7Vp-p/75ohm)  
D-sub Analog: VESA 1280 x 1024@75Hz  
VESA 1280 x 1024@60Hz  
On Mode  
Sleep Mode  
Off Mode  
Width  
43W  
Power  
:
1W  
Consumption  
1W  
39.4 cm /15.51 inches  
39.6 cm /15.59 inches  
22.2 cm / 8.74 inches  
Dimensions  
&Weight  
(with tilt stand)  
Height  
Depth  
Net  
Tilt  
5.3 kg (11.68 lbs)  
-5˚~25˚  
Tilt Range  
Power Input  
AC 100-240V~ 50/60Hz 1.0A  
Operating Conditions  
Environmental  
Conditions  
Temperature 10˚C to 35 ˚C  
Humidity  
10 % to 80 % non-Condensing  
Storage Conditions  
Temperature -20˚C to 60 ˚C  
Humidity  
5 % to 95 % non-Condensing  
Tilt Stand  
Attached( O ), Detached (  
)
Signal cable  
Power cord  
Attached( ), Detached ( O )  
Wall-outlet type or PC-outlet type  
NOTE  
Information in this document is subject to change without notice.  
A17  
 
Specifications  
L1940B  
Display  
19 inches (48.18cm) Flat Panel Active matrix-TFT LCD  
Anti-Glare coating  
19 inches viewable  
0.294 mm pixel pitch  
Sync Input  
Horizontal Freq. Analog : 30 - 83kHz (Automatic)  
Vertical Freq.  
Input Form  
56 - 75Hz (Automatic)  
Separate TTL, Positive/Negative  
SOG (Sync On Green)  
Video Input  
Resolution  
Plug&Play  
Signal Input  
Input Form  
Max  
Recommend  
DDC 2B  
15 pin D-Sub Connector  
RGB Analog (0.7Vp-p/75ohm)  
D-sub Analog: VESA 1280 x 1024@75Hz  
VESA 1280 x 1024@60Hz  
On Mode  
Sleep Mode  
Off Mode  
Width  
45W  
Power  
:
1W  
1W  
Consumption  
44.3 cm /17.44inches  
43.5 cm /17.12 inches  
24.0 cm / 9.44inches  
Dimensions  
&Weight  
(with tilt stand)  
Height  
Depth  
Net  
Tilt  
6.8 kg (14.99 lbs)  
-5˚~25˚  
Tilt Range  
Power Input  
AC 100-240V~ 50/60Hz 1.0A  
Operating Conditions  
Environmental  
Conditions  
Temperature 10˚C to 35 ˚C  
Humidity  
10 % to 80 % non-Condensing  
Storage Conditions  
Temperature -20˚C to 60 ˚C  
Humidity  
5 % to 95 % non-Condensing  
Tilt Stand  
Attached( O ), Detached (  
)
Signal cable  
Power cord  
Attached( ), Detached ( O )  
Wall-outlet type or PC-outlet type  
NOTE  
Information in this document is subject to change without notice.  
A18  
 
Specifications  
Preset Modes (Resolution)  
Display Modes (Resolution)  
Horizontal Freq. (kHz)  
Vertical Freq. (Hz)  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
31.469  
31.468  
31.469  
37.500  
37.879  
46.875  
49.725  
48.363  
60.023  
68.681  
61.805  
63.981  
79.976  
VGA  
VGA  
VGA  
640 x 350  
720 x 400  
640 x 480  
640 x 480  
800 x 600  
800 x 600  
832 x 624  
1024 x 768  
1024 x 768  
1152 x 870  
1152 x 900  
1280 x 1024  
1280 x 1024  
70  
70  
60  
75  
60  
75  
75  
60  
75  
75  
65  
60  
75  
VESA  
VESA  
VESA  
MAC  
VESA  
VESA  
MAC  
VESA  
VESA  
VESA  
Indicator  
Mode  
LED Color  
On Mode  
Sleep Mode  
Off Mode  
blue  
amber  
Off  
A19  
 
How to Install the Rack wall mounting  
This monitor can be mounted on the VESA standrad wall mounting rack..  
1. Please the monitor on a piece of cloth or other soft surface with the  
front side facing downward and remove the rear cap.  
2. Separate the stand base using a  
screwdriver as shown in the picture.  
3. Install the VESA standrad wall mounting.  
VESA wall mounting  
Connected to another object (stand type  
and wall-mounted type. This monitor  
accepts a VESA-compliant mounting  
interface pad.-optional)  
For further information, refer to the VESA  
Wall Mounting Instruction Guide.  
Kensington Security Slot- optional  
Connected to a locking  
cable that can be purchased  
separately at most computer  
stores  
A20  
 
Digitally yours  
 

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