LG C275WT-PF User manual

OWNER’S MANUAL

ENGLISH

LCD MONITOR

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

LCD MONITOR MODEL

C275WT

www.lg.com

Important Precautions

This unit has been engineered and manufactured to ensure your personal safety,
however improper use may result in potential electrical shock or fire hazards. In
order to allow the proper operation of all safeguards incorporated in this display,
observe the following basic rules for its installation, use, and servicing.

On Safety

Use only the power cord supplied with the unit. In case you use another power
cord, make sure that it is certified by the applicable national standards if not being
provided by the supplier. If the power cable is faulty in any way, please contact the
manufacturer or the nearest authorized repair service provider for a replacement.

The power supply cord is used as the main disconnection device. Ensure that the
socket-outlet is easily accessible after installation.

Operate the display only from a power source indicated in the specifications of
this manual or listed on the display. If you are not sure what type of power supply
you have in your home, consult with your dealer.

Overloaded AC outlets and extension cords are dangerous. So are frayed power
cords and broken plugs. They may result in a shock or fire hazard. Call your service
technician for replacement.

As long as this unit is connected to the AC wall outlet, it is not disconnected from
the AC power source even if the unit is turned off.

Do not Open the Display:

There are no user serviceable components inside.
There are Dangerous High Voltages inside, even when the power is OFF.
Contact your dealer if the display is not operating properly.

To Avoid Personal Injury :

Do not place the display on a sloping shelf unless properly secured.
Use only a stand recommended by the manufacturer.
Do not drop an object on or apply impact to the product. Do not throw any toys
or objects on the product screen.
It can cause injury to human, problem to product and damage the display.

To Prevent Fire or Hazards:

Always turn the display OFF if you leave the room for more than a short period
of time. Never leave the display ON when leaving the house.
Keep children from dropping or pushing objects into the display's cabinet
openings. Some internal parts carry hazardous voltages.
Do not add accessories that have not been designed for this display.
When the display is to be left unattended for an extended period of time, unplug
it from the wall outlet.
In the presence of thunder and lightning, never touch the power cord and signal
cable because it can be very dangerous. It can cause electric shock.

A1

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.

Leaving a fixed image on the screen for a long time may cause damage to the
screen and cause image burn-in. Make sure to use a screen saver on the product.
Burn-in and related problems are not covered by the warranty on this product.

Do not shock or scratch the front and sides of the screen with metallic objects.
Otherwise, it may cause damage to the screen.

Make sure the panel faces forward and hold it with both hands to move. If you
drop the product, the damaged product can cause electric shock or fire. Contact
an authorized the service center for repair.

Avoid high temperatures and humidity.

A2

Important Precautions

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.

When cleaning the product, unplug the power cord and scrub gently with a soft

cloth to prevent scratching. Do not clean with a wet cloth or spray water or
other liquids directly onto the product. An electric shock may occur. (Do not use
chemicals such as benzene, paint thinners or alcohol)

Spray water onto a soft cloth 2 to 4 times, and use it to clean the front frame;

wipe in one direction only. Too much moisture may cause staining.

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(Only , Hg lamp used LCD Monitor)

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.

A3

Connecting the Display

Connecting the stand

1. Place the monitor with its front facing downward on a soft cloth.

2. Assemble the stand base into stand body in the correct direction as shown in

the picture, then tighten the screw which is attached to the stand base.

Stand Body

Stand Base

Screw

3. Once assembled take the monitor up carefully and face the front side.

Disassembling the stand

1. Place the monitor face down on the cushion or soft cloth.

2. Loosen the screw which is attached to the stand base, then take off the stand base

from stand body.

Stand Body

Stand Base

Screw

Important

This illustration depicts the general model 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.

A4

Connecting the Display

Before setting up the monitor, ensure that the power to the monitor, the computer
system, and other attached devices is turned off.

Positioning your display

1. Adjust the position of the panel in various ways for maximum comfort.

Tilt Range: -5˚~15˚

Swivel Range: 355˚

Ergonomic

It is recommended that in order to maintain an ergonomic and comfortable viewing
position, the forward tilt angle of the monitor should not exceed 5 degrees.

A5A5

Connecting the Display

Using the Computer

1. Make sure to turn off the computer and product. Connect the cable as below sketch map

form to .

A

Connect DVI-D Cable

B

Connect D-sub Cable (PC)

C

Connect D-sub Cable (Mac)

NOTE

This is a simplified representation of the rear view.
This rear view represents a general model; your display may differ from the view as shown.
User must use shielded signal interface cables (D-sub 15 pin cable, DVI cable) with ferrite cores to maintain standard
compliance for the product.

2

1

Power Cord

Wall-outlet type

Analog signal

Digital signal

D-sub

DVI

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 the
supplied cable to a 15 pin 2 row connector.

DVI-D (This feature is not available in all countries.)

2. Press 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)

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.
‘AUTO/SET’ Function? 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/SET function button to improve
resolution.

A6A6

Control Panel Functions

1

2

3

5

6

87

4

Front Panel Controls

Control Function

Button

Button

MENU Button

Use this button to enter CINEMA MODE,TIME
CONTROL,SMART items,for more information,refer to

page A15.

Use this button to enter EZ ZOOMING, 4:3 IN WIDE,
PHOTO EFFECT items,

For more information,refer to page A16 -A17 .

Use this button to enter or exit from the On Screen Display.

OSD LOCKED/UNLOCKED

This function allows you to lock the current control settings, so
that these settings are not inadvertently changed. To lock the
OSD settings, press and hold the MENU button for several
seconds. The message "OSD LOCKED" appears.

You can unlock the OSD settings at any time by
pushing the MENU button for several seconds. The
message "OSD UNLOCKED" appears.

A7

Control Panel Functions

Control Function

Buttons

Button

()

Button

(SOURCE)

AUTO/SET
Button

Use these buttons to select or adjust functions in the On
Screen Display.

For more information, refer to page A18.

Use this button to make either D-Sub or DVI
connector active. This feature is used when two
computers are connected to the display. The default
setting is D-Sub.

Use this button to select an icon in the On Screen
Display.

AUTO IMAGE ADJUSTMENT

When adjusting your display settings, always press
the AUTO/SET button prior to 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:

C275WT : 1920 x 1080

Power Button

Power Indicator

Use this button to turn the display on or off.

This Indicator lights up as red when the display is
operating normally(On Mode). If the display is in
Sleep Mode (Energy Saving), this indicator color
changes to flicker.

A8

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:

Press the MENU Button, then the main menu of the OSD appears.

To access a control, use the or Buttons. When the icon you want
becomes highlighted, press the AUTO/SET Button.

Use the / Buttons to adjust the image to the desired level. Use the

AUTO/SET Button to select other sub-menu items.

Push the MENU Buttononce to return to the main menu to select another
function. Push the MENU Buttontwice to exit from the OSD.

A9

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 A D Reference

CINEMA MODE

TIME CONTROL
SMART

EZ ZOOMING

4:3 IN WIDE

PHOTO
EFFECT

PICTURE

COLOR

TRACKING

SETUP

FLATRON
F-ENGINE

NORMAL

GAUSSIAN BLUR

SEPIA

MONOCHROME

BRIGHTNESS

CONTRAST

GAMMA

sRGB

PRESET

RED

GREEN

BLUE

HORIZONTAL

VERTICAL

CLOCK

PHASE

SHARPNESS

LANGUAGE

OSD
POSITION

WHITE BALANCE

POWER INDICATOR

FACTORY RESET

POWER REDUCTION

MOVIE

INTERNET

USER

NORMAL

DEMO

6500K

9300K

HORIZONTAL

VERTICAL

To focus on the moving picture selected

To mind user using time

To control smart key menu

To adjust the resolution

To adjust the image size

To adjust screen color mode

To adjust the brightness, contrast and
gamma of the screen

To costomize the color of the screen

To adjust the position of the screen

To improve the clarity and stability of the
screen

To costomize the screen status for a
user's operating environment

To select or customize desired image
settings

: Adjustable
A : Analog Input
D : Digital Input

NOTE

The order of icons may differ depending on the model (A10~A18).

A10

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.

Main Menu

MENU : Exit

: Adjust (Decrease/Increase)

SET : Enter

: Select another sub-menu

: Restart to select sub-menu

Button Tip

Menu Name

Icons

NOTE

OSD (On Screen Display) menu languages on the monitor may differ from the manual.

A11

Sub-menus

On Screen Display(OSD) Selection and Adjustment

PICTURE

COLOR

Main menu Sub menu Description

PICTURE

CONTRAST

GAMMA

MENU : Exit

: Decrease
: Increase

SET : Select another sub-menu

COLOR

PRESET

RED

BRIGHTNESS

To adjust the brightness of the screen.

To adjust the contrast of the screen.

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.

• sRGB: Set the screen color to fit the
SRGB standard color
specification.

• 6500K: Slightly reddish white.

• 9300K: Slightly bluish white.

Set your own red color levels.

MENU : Exit

GREEN

: Decrease
: Increase

BLUE

SET : Select another sub-menu

Set your own green color levels.

Set your own blue color levels.

A12

On Screen Display(OSD) Selection and Adjustment

TRACKING

Main menu Sub menu Description

TRACKING

MENU : Exit

: Decrease
: Increase

SET : Select another sub-menu

HORIZONTAL

VERTICAL

CLOCK

PHASE

SHARPNESS

To move image left and right.

To move image up and down.

To minimize any vertical bars or
stripes visible on the screen
background.
The horizontal screen size will also
change.

To adjust the focus of the display.
This item allows you to remove
any horizontal noise and clear or
sharpen the image of characters.

To adjust the clearness of the
screen.

A13

On Screen Display(OSD) Selection and Adjustment



SETUP

Main menu Sub menu Description

SETUP

MENU : Exit

: Adjust
: Adjust

SET : Select another sub-menu

LANGUAGE

OSD
POSITION

WHITE
BALANCE

POWER
INDICATOR

FACTORY
RESET

To choose the language in which the
control names are displayed.

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.

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.

Restore all factory default settings except

"LANGUAGE."

Press the , buttons to reset immediately.

POWER
REDUCTION

Use this function to set the power
reduction to ON or OFF.
If you set OFF, it will go off.
If you set ON , it will automatically be
turned on.

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.

A14

On Screen Display(OSD) Selection and Adjustment

The OSD screen will appear when you press the button on the front
of the monitor.

MENU : Exit , : Move, SET : Select

Main menu Sub menu Description

CINEMA MODE

TIME CONTROL

SMART

To focus on the moving picture selected.
This function adjusts the brightness of areas other
than the user-selected area to provide an
environment and image quality optimized for
videos or moving picture on the web browser.

* This function is operated only if the 'forteManag-

er' is installed to PC.

To notify the user of a specified time.
This function notifies the user that a user-specified
time (1 or 2 hours) has passed, which is done by
displaying the Alarm OSD and the LED blinking.

Time Options: OFF/1HOUR/2HOURS

To adjust the SMART button menus.
This function adjusts TIME CONTROL .

When ON is selected, TIME CONTROL is set to
1HOUR. When OFF is selected, all these
functions are turned off. When TIME CONTROL
is set individually, each setting is changed to
USER automatically.

A15A15

On Screen Display(OSD) Selection and Adjustment

The OSD screen will appear when you touch the FUN button on the right bottom of the
monitor.

Main menu Sub menu Description

EZ ZOOMING

4:3 IN WIDE

EZ Zoom lowers the display’s resolution in
single-step increments. Depressing the button
once lowers the resolution by one step; while a
second button-press returns the resolution to
the original display settings.

*This function is operated only if the
forteManager is installed to PC.

To select the image size of the screen.

WIDE

•

WIDE: Switch to full screen mode according to

input image signal.

•

4 : 3: Change the image signal ratio into 4:3.

4:3

A16

On Screen Display(OSD) Selection and Adjustment

Main menu Sub menu Description

PHOTO EFFECT

- NORMAL:
The PhotoEffect function is disabled.

- GAUSSIAN BLUR:
This option is to add the effect to the screen
that the dark and sharp image becomes
brighter and more blurred.

- SEPIA:
This option changes the screen to be Sepia
tone. The Sepia tone is brown color tone.

- MONOCHROME:
This option changed the screen to be Gray
tone. The screen is displayed by white, black,
gray.

A17

On Screen Display(OSD) Selection and Adjustment

0

1

2

3

The OSD screen will appear when you touch the button on the right bottom of
the monitor.

Menu Name

Icons

Sub-menu Name

Main menu Sub menu Description

MOVIE
INTERNET

MENU : Exit

: Move

USER

To adjust the USER sub-menu function,
press the AUTO/SET Button.

MENU : Exit

: Decrease
: Increase

SET : Select another sub-menu

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

INTERNET

: For text images (Word processing etc.)

User
You can manually adjust ACE or RCM.
You can save or restore the adjusted value even
when using a different environment.

...

ACE

(Adaptive Clarity Enhancer)

...

RCM(Real Color Management): Selects the color mode.

Not applied
Green enhance
Flesh tone
Color Enhance

: Selects the clarity mode.

NORMAL

This is under normal operating conditions.
* Normal mode is when f-ENGINE is turned off.

DEMO

This is just for advertising to customer in the
shops. It’s setting is same with Movie mode and
screen is divided by half.

A18

Troubleshooting

Check the following before calling for service.

No image appears

No image appears

● Is the power cord of the

display connected?

● Is the power indicator

light on?

● Is the power indicator

flickering?

● Do you see an "OUT OF

RANGE" message on
the screen?

● Do you see a "CHECK

SIGNAL CABLE"
message on the
screen?

•

Check and see if the power cord is connected
properly to the power outlet.

•

Press the Power button.

•

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.

•

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 "OSD LOCKED" message on the screen?

●

Do you see “OSD

LOCKED” when 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 several
seconds: the message
“OSD UNLOCKED” will appear.

A19

Troubleshooting

Display image is incorrect

● Display Position is

incorrect.

● On the screen

background, vertical
bars or stripes are
visible.

● Any horizontal noise

appearing in any
image or characters
are not clearly
portrayed.

•

Press the AUTO/SET 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.

•

Press the AUTO/SET 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.

Press the AUTO/SET 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.
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).

Important

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.

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 (Operation 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.

A20A20

Troubleshooting

Display image is incorrect

❁ The screen color is

mono or abnormal.

❁

The screen blinks.

• 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 .

• Check if the screen is set to interlace mode and if

yes,change it to the recommend resolution.

Have you installed the display driver?

❁

Have you installed

the display driver?

❁

Do you see an
"Unrecognized monitor,
Plug&Play (VESA DDC)
monitor found"
message?

• 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 driver from
our web site:http://www.lg.com.

Make sure to check if the video card supports

•

Plug&Play function.

A21A21

Specifications

Display

Sync Input

Video Input

Resolution

Plug&Play

Power
Consumption

Dimensions

&Weight

Range

Power Input

Environmental
Conditions

Stand Base

Power cord

NOTE

Information in this document is subject to change without notice.

27.0 inches (68.6 cm) Flat Panel Active matrix-TFT LCD
Anti-Glare coating
Visible diagonal size: 68.6 cm

0.311*0.311 mm pixel pitch

Horizontal Freq. 30 - 83 kHz (Automatic)
Vertical Freq. 56 - 75 Hz (Automatic)

Input Form Separate TTL, Positive/Negative

SOG (Sync On Green)
Digital (HDCP)

Signal Input 15 pin D-Sub Connector

DVI - D connector (Digital)
Input Form Analog (0.7 Vp-p/ 75 ohm), Digital

Max Analog : VESA 1920 x 1080 @ 60 Hz

Digital : VESA 1920 x 1080 @ 60 Hz
Recommend VESA 1920 x 1080 @60 Hz

DDC 2B (Digital), DDC 2AB (Analog)

POWER REDUCTION (OFF) POWER REDUCTION(ON)

On Mode
Sleep Mode ≤ 1 W Sleep Mode ≤ 1 W

Off Mode ≤ 0.5 W Off Mode ≤ 0.5 W

Width 65.27 cm / 25.69 inches 65.27 cm / 25.69 inches
Height 48.77 cm / 19.20 inches 42.33 cm / 16.66 inches
Depth 21.20 cm / 8.34 inches 6.80 cm / 2.67 inches

Net 6.79 kg (14.97 lbs)

Tilt -5˚~15˚
Swivel 355°

AC 100-240V~ 50/60Hz 1.5A

Operating Conditions

Temperature 10˚C to 35 ˚C
Humidity 10 % to 80 % non-Condensing

Storage Conditions

Temperature -20˚C to 60 ˚C
Humidity 5 % to 90 % non-Condensing

Attached( ), Detached ( O )

Wall-outlet type

: 46 W(Typ.)

With Stand Without Stand

On Mode

: 37 W(Typ.)

A22A22A22

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

Indicator

MODE

720 x 400
640 x 480
640 x 480
800 x 600

800 x 600
1024 x 768
1024 x 768
1152 x 864

1280 x 1024
1280 x 1024
1680 x 1050
1920 x 1080

LED Color

31.468

31.469

37.500

37.879

46.875

48.363

60.123

67.500

63.981

79.976

65.290

67.500

70
60
75
60
75
60
75
75
60
75
60
60

* Recommend Mode

On Mode
Sleep Mode
Off Mode

Red

Flicker

Off

A23

Make sure to read the Safety Precautions
before using the product.
Keep the OWNER’S MANUAL(CD) in an
accessible place for furture reference.
The model and serial number of the SET is
located on the back or one side of the SET.
Record it below should you ever need service.

MODEL

SERIAL

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.