AOC LM720BGE User Manual

AOC LM720BGE

17 inch TFT LCD Monitor

User’s

Manual

by Envision Peripherals, Inc.

www.aocmonitor.com

Before operating your monitor, please read this

manual thoroughly.

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Precautions

AOC LM720BGE

• Do not use the monitor near water, e.g. near a

bathtub, washbowl, kitchen sink, laundry tub,

swimming pool or in a wet basement.

• The monitor is equipped with a three-pronged

grounded plug, a plug with a third (grounding)

pin. As a safety feature, this plug will only fit

into a grounded power outlet. If your outlet

does not accommodate the three-wire plug,

have an electrician install the correct outlet, or

use an adapter to ground the appliance safely.

Do not defeat the safety purpose of the

grounded plug.

• Do not place the monitor on an unstable cart,

stand, or table. If the monitor falls, it can injure

a person and cause serious damage to the

appliance. Use only a cart or stand

recommended by the manufacturer or sold with

the monitor. If you mount the monitor on a wall

or shelf, use a mounting kit approved by the

manufacturer and follow the kit instructions.

• Unplug the unit during a lightning storm or

when it will not be used for long periods of time.

This will protect the monitor from damage due

to power surges.

• Slots and openings in the back and bottom of

the cabinet are provided for ventilation. To

ensure reliable operation of the monitor and to

protect it from overheating, be sure these

openings are not blocked or covered. Do not

place the monitor on a bed, sofa, rug, or similar

surface. Do not place the monitor near or over

a radiator or heat register. Do not place the

monitor in a bookcase or cabinet unless proper

ventilation is provided.

• Never push any object into the slot on the

monitor cabinet. It could short circuit parts

causing a fire or electric shock. Never spill

liquids on the monitor.

• Do not attempt to service the monitor yourself;

opening or removing covers can expose you to

dangerous voltage and other hazards. Please

refer all servicing to qualified service personnel.

• The monitor should be operated only with the

type of power source indicated on the label. If

you are not sure of the type of power supplied

to your home, consult your dealer or local

power company.

• To ensure satisfactory operation, use the

monitor only with UL-listed computers which

have appropriately configured receptacles

marked between 100 - 240 V AC, Min. 5A.

• The wall socket should be installed near the

equipment and should be easily accessible.

• Do not overload power strips and extension

cords. Overloading can result in fire or electric

shock.

• Disconnect the power cord to stop the power

supply to the monitor.

• For use only with power adapter (Output

12Vdc) which has UL, CSA listed license.

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For Your Safety

AOC LM720BGE

Special Notes on LCD Monitors

General Notes

The following symptoms are normal with an LCD

monitor and do not indicate a problem:

• Do not install the monitor near heat sources

such as radiators or air ducts.

• Due to the nature of the fluorescent light, the

screen may flicker during initial use. Turn off the

Power Switch and then turn it on again to make

sure the flicker disappears.

• Do not place monitor in direct sunlight or in

areas with excessive dust, mechanical vibration

or shock.

• Save the original shipping carton and packing

materials in case you need to ship your monitor.

Be sure to repackage your monitor as it was

originally packed at the factory.

• You may find slightly uneven brightness on the

screen depending on the desktop pattern you

use.

• The LCD screen has effective pixels of 99.99%

or more. It may include blemishes of 0.01% or

less such as a missing pixel or a pixel lit all of

the time.

• Periodically clean your monitor with a soft cloth.

Stubborn stains may be removed with a cloth

lightly dampened with a mild detergent solution.

Never use strong solvents such as thinners,

benzene, or abrasive cleaners, since these

will damage the cabinet. Always unplug the

monitor before cleaning it.

• Due to the nature of the LCD screen, an after-

image of the previous screen may remain after

switching from an image that has been

displayed for hours. This after-image could

require several hours to disappear.

Using the Right Power Cord

The supplied power cord is a NEMA 5-15 style

plug. It is UL-listed and CSA labeled for

125 volts AC.

• The life of the fluorescent light used in the LCD

monitor is approximately 30,000 hours. Contact

your dealer or EPI service center for

replacement when the screen is dark, flickering

or not lighting up. Never attempt to replace it by

yourself.

If the monitor will be connected to your computer’s

power outlet, use a minimum No. 18 AWG, type

SJT or SVT three conductors cord with one end

terminating with a male grounded plug, rated 10A,

250V, CEE-22. The other end must terminate with

a molded-on type connector body, rated 10A,

250V, having standard CEE-22 female

configuration.

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Before You Operate the Monito_Ar_{OC LM720BGE}

Installing & Removing the Base

General Features:

Package Contents

• 17" (43.2cm) TFT Color LCD Monitor

The box that your monitor was shipped in should

have included the following items:

• Crisp, Clear Display for Windows

1. LM720BGE LCD Monitor

2. Power Adapter

• Supports Resolutions up to 1280 X 1024 pixels

@75Hz, (1280 x 1024 @ 60Hz Recommended)

3. Power Cord

• EPA ENERGY STAR^®

4. Windows 95/98/2000/ME/XP INF Driver Disk

5. Quick Start Guide

6. Booklet (Containing Warranty & Safety

Information)

• Ergonomic Design

• Space Saving, Compact Case Design

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Before You Operate the Monito_Ar_{OC LM720BGE}

Connecting the Wires Using the Power Cord Supplied

1. Connect the built-in video cable into the 15-pin

connector on the back of your computer and

tighten the two screws.

Caution: Make sure the power cord is the correct

type that is required in your area. This LCD

monitor has a universal power supply that allows

operation in either 100/120V AC or 220/240V AC

voltage areas (no user adjustment is required).

2. Connect the power cord into the power adaptor.

3. Plug the other end of the power cord into a

grounded AC outlet or UL-approved power

strip.

If the AC outlet is not grounded (with three holes),

install the proper grounding adapter (not

supplied).

4. Connect the power adapter into the DC IN

socket on the back of the monitor.

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Before You Operate the Monito_Ar_{OC LM720BGE}

Preparing to Install An Optional Wall Mounting Arm (Not supplied)

This monitor can be attached to a wall mounting

arm you purchase separately. Disconnect power

before this procedure. Follow these steps:

See next page for further installation instructions.

1. Pull the screw covers off the back of the

monitor.

2. Support the base and remove the screws.

3. Remove the base.

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Before You Operate the Monito_Ar_{OC LM720BGE}

Install An Optional Wall Mounting Arm (Not supplied)

Follow these steps to finish installing the wall

mounting arm:

AOC's Model LM720BGE is compatible with the

Ergotron line of mounting and arm solutions.

1. Place the wall mounting arm onto the back of

the monitor. Line up the holes of the arm with

the holes in the back of the monitor.

Contact Ergotron at 800-888-8458 or visit their

web site at www.ergotron.com for more

information on the many ways on which you can

mount your AOC LCD monitor.

2. Insert the 4 screws into the holes and tighten.

3. Insert the power cable into the slot on the back

of the monitor.

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Before You Operate the Monito_Ar_{OC LM720BGE}

Adjusting the Viewing Angle

How to Install INF & ICM File

For optimal viewing, adjust the monitor's angle to

your own preference.

1. Insert the Windows 95/98/2000/ME/XP INF

Driver Disk into your floppy drive.

• Hold the stand firmly when you change the

monitor's angle.

2. Follow the Add New Hardware Wizard

instructions on the screen.

• You can adjust the monitor's angle from -5° to

25°.

3. If the wizard asks for the location of the driver

file, select drive A and press Next.

• Do not touch the LCD screen when you change

the angle. It may cause damage or breakage.

• Be careful to avoid pinching your hand in the

swivel base.

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Operating Instructions

AOC LM720BGE

Front Panel Buttons

Auto: Press this button to automatically set

the H-Position, V-Position, Clock and

Focus settings.

Power Indicator: A green light indicates

that the monitor is on. An orange light

indicates that the monitor is in Off mode.

Power: Press this button to turn the

monitor on or off. The power indicator

will light up.

Brightness: Press this button to adjust the

picture’s brightness. If the OSD window is

open, this button allows you to move within

the window and select desired functions.

Contrast: Press this button to adjust the

picture’s contrast. If the OSD window is

open, this button allows you to move within

the window and select desired functions.

MENU: Press this button to open the OSD

window or exit from the OSD window.

On-screen Display (OSD): Press the

MENU button to open the OSD window

and adjust settings on your monitor.

(See next page.)

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Operating Instructions

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Adjusting the OSD Settings

1. Press the MENU button to open the OSD

5. To save and exit, highlight the EXIT icon and

press MENU or leave the monitor alone for 10

seconds. If you want to adjust any other

function, repeat steps 2-4.

window.

2. Press the < or > buttons until the desired

function is highlighted.

Note: When the OSD window is open, the input

signal timing settings appear at the top.

H: stands for horizontal frequency and

V: stands for vertical frequency.

3. Press MENU to open the function’s window.

4. Press the < or > buttons to change the settings

of the function.

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Operating Instructions

AOC LM720BGE

pattern has vertical stripe noise, or the characters

are twisted):

DOS-mode

This feature allows you to choose between

resolutions of 720 x 400 or 640 x 400 while

working in DOS-mode. Follow the instructions for

selecting functions in the OSD window as listed on

the previous page. Press your monitor’s Power

button off and then on to activate your chosen

DOS-mode resolution. Note: the default DOS-

mode resolution is 720x400@70Hz.

1. Change the resolution to 640 x 400

2. Press the Power button off and then on.

3. Press the AUTO button for 2 seconds.

Note: the above procedure must process

in full-screen pattern.

To exit, press the ESC key or press ALT-F, and

then press the X key.

How to Optimize the DOS-mode

1. Insert the Windows 95/98/2000/ME INF Driver

Disk into your floppy drive.

Plug & Play DDC1/2B Feature

This monitor is equipped with VESA DDC1/2B

capabilities according to the VESA DDC

STANDARD. It allows the monitor to inform the

host system of its identity and, depending on the

level of DDC used, communicate additional

information about its display capabilities. The

communication channel is defined in two levels,

DDC1 and DDC2B.

2. Open Windows Explorer to search on the

floppy drive (Drive A:) to find the Dos1.exe file.

3. Double-click on the Dos1.exe file.

4. Expand the picture to full screen by pressing

the icon on the top of window. If there is no

icon, the picture is already at full screen.

The DDC1 is a unidirectional data channel from

the display to the host that continuously transmits

EDID information. The DDC2B is a bidirectional

data channel based on the I²C protocol. The host

can request EDID information over the DDC2B.

If you don't have the driver disk:

1. Choose Start / Programs / MS-DOS mode.

2. Type C:\> EDIT and press Enter. You will be in

the Dos-Editor screen.

3. Press the AUTO button on the front of your

monitor for 2 seconds. The screen will be

automatically adjusted.

If the screen is distorted (for example: the picture

can't go to full screen, the background of white

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Technical Support (FAQ)

AOC LM720BGE

Problem

Possible Solution

Power LED is not ON • Make sure the power button is ON.

• Make sure the power adaptor is properly connected to a grounded power

outlet and to the monitor.

No Plug & Play

Picture is fuzzy

• Confirm that your computer is Plug & Play compatible.

• Confirm that your video card is Plug & Play compatible.

• Inspect the video cable and make sure that none of the pins are bent.

• Make sure the AOC monitor drivers are installed.

(AOC monitor drivers are available at: www.aocmonitor.com)

• Adjust the Contrast and Brightness settings.

Picture bounces or a

wave pattern is

• Move electrical devices away from the monitor. They may be causing

electrical interference.

present in the picture

Power LED is ON

• Press a key on the keyboard or wiggle the mouse to re-activate the monitor.

(green or orange light • Make sure the video cable is properly connected to the computer.

is ON) but there is no • Inspect the video cable and make sure none of the pins are bent.

video or picture.

• Make sure your computer is operating correctly by pressing the CAPS LOCK

key and observing whether the CAPS LOCK light turns ON or OFF.

Missing one of the

primary colors (RED,

GREEN, or BLUE)

• Inspect the video cable and make sure that none of the pins are bent.

• Make sure the video cable is properly connected to the computer.

Dead Pixel Criteria

• In order to provide the highest performing products, EPI has set the following

limits as to the maximum allowable number of bad pixels: 5 Bright Sub-pixels

or 5 Dark Sub-pixels or combination of 8 Dark & Bright. The panel used on

this product has a total of 3,932,160 sub-pixels. So even the maximum

allowed of 8 bad sub-pixels would only amount to a very small 0.00020% of

the total sub-pixels

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Technical Support (FAQ)

AOC LM720BGE

Problem

Possible Solution

• Adjust the CLOCK¹and FOCUS²settings or press the AUTO button to

automatically re-configure the monitor’s settings.

Screen image is not

centered or sized

properly

Picture has color

defects (white does

not look white)

• Adjust the settings for Red, Green and/or Blue colors or select a different

color temperature: 65 (6500 K) or 78 (7800 K).

Poor brightness or

contrast

• The life time of the back-light is limited. After 30,000 hours, the luminance of

the light has been reduced to half of its original value. Please send the

monitor to an authorized service agent for service.

Horizontal or vertical

disturbances on the

screen

• Adjust the CLOCK and FOCUS settings or press the AUTO button to

automatically re-configure the monitor’s settings.

• Use Win 95/98 shut-down mode.

¹CLOCK (pixel frequency) controls the number of pixels scanned by one horizontal sweep. If the frequency is

not correct, the screen shows vertical stripes and the picture’s width is incorrect.

²FOCUS adjusts the phase of the pixel clock signal. With a wrong phase adjustment the picture has horizontal

disturbances with very light screen images.

Note: For FOCUS and CLOCK adjustment use “dot-pattern” or Win 95/98 shut-down mode pattern.

Error Message

Possible Solution

Cable not connected

• Make sure the video cable is properly connected to the computer.

If the connector is loose, tighten the connector's two screws.

• Inspect the video cable and make sure that none of the pins are bent.

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Technical Support (FAQ)

AOC LM720BGE

Error Message

Possible Solution

Input not supported

• Your computer has been set to an incompatible display mode. Right click on

the desktop and choose Properties. Click the Settings tab then set your

computer’s display mode to one of the settings listed in the resolution chart

below.

Unsupported mode

try different video

card setting

• Your computer’s resolution is out of VESA specifications. Right click on the

desktop and choose Properties. Click the Settings tab then set your

computer’s display mode to one of the settings listed in the resolution chart

below.

Resolution Chart

Resolution

(in pixels)

Vertical

Frequency

Resolution

(in pixels)

Vertical

Frequency

640 x 480

640 x 400

640 x 350

720 x 400

640 x 480

800 x 600

60 Hz

70 Hz

800 x 600

72.2 Hz

75 Hz

70 Hz

832 x 624

74.5 Hz

60 Hz

70 Hz

1024 x 768

1280 x 1024

72.8 Hz

75 Hz

70 Hz

75 Hz

66.67 Hz

56.3 Hz

60.3 Hz

74.92 Hz

60 Hz

75 Hz

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Appendix

AOC LM720BGE

Specifications

Plug & Play

VESA DDC1/

2BTM

LCD

Panel

Driving

system

TFT Color LCD

Input Connector

D-Sub 15-pin

Size

17" (43.2 cm)

Diagonal

Input Video Signal

Analog: 0.7 Vpp

(standard),

75 OHM, Positive

Pixel pitch

0.264 mm (H) x

0.264 mm (V)

Maximum Screen Size

Horizontal:

13.3" (338 mm)

Viewable

angle

150° (H) 125° (V)

Vertical:

10.6" (270 mm)

Input

Response

time

16 milliseconds

Power Source

100~240 VAC,

50/60 Hz

Video

Red, Green, Blue

Analog Interface

Environmental

Considerations

Operating Temp:

32° to 104°F

(0° to 40°C)

Separate

Sync.

H/V TTL

H-Frequency

V-Frequency

30 kHz - 80 kHz

55-75 Hz

Storage Temp:

14° to 122°F

(-10° to 50°C)

Display Colors

Dot Clock

16.2 million colors

135 MHz

Operating

Humidity:

20% to 90%

Maximum Resolution

1280 x 1024 pixels

Weight

11.0 lbs. (5.0 Kg)

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Appendix

AOC LM720BGE

Specifications (continued)

Front Panel Buttons

Auto

Brightness

Contrast

Power Switch

MENU/ Exit

External

Controls:

Functions Contrast

Brightness

Focus

Clock

H-Position

V-Position

Auto-Center

Language

Dos-mode Resolution

Selected

6500° K

7800° K

RGB Color temp.

Recall

Exit

EPA ENERGY

STAR®

Yes

Power Consumption

(Maximum)

45 Watts

Regulatory

Compliance

UL, CSA, FCC, TÜV/

GS, CE, XP Logo

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Appendix

AOC LM720BGE

Factory Preset Timing Table

Resolution

(in pixels)

Horizontal

Frequency

Vertical

Frequency

Standard

DOS-Mode

600 x 400

31.47 kHz

70 Hz

720 x 400

640 x 480

640 × 480

800 × 600

832 × 624

1024 × 768

1280 x 1024

31.47 kHz

35.00 kHz

37.50 kHz

37.879 kHz

46.875 kHz

49.725 kHz

48.363 kHz

56.476 kHz

60.02 kHz

60.241 kHz

64.00 kHz

80.00 kHz

70 Hz

60 Hz

66.6 Hz

75 Hz

60 Hz

75 Hz

60 Hz

70 Hz

75 Hz

74.9 Hz

60 Hz

75 Hz

VGA

SVGA

XGA

SXGA

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Appendix

AOC LM720BGE

Connector Pin Assignment

Pin Number

Description

Pin Number

Description

Red

+5V

Green

Detect Cable

Blue

Ground

R-Ground

G-Ground

B-Ground

DDC-Serial Data

H-Sync

V-Sync

DDC-Serial Clock

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