AOC LM 500 User Manual

AOC LM-500  
AOC LM-500  
15 inch TFT LCD Monitor  
User’s  
Manual  
by Envision Peripherals, Inc.  
Before operating your monitor, please read this  
manual thoroughly.  
LM-500  
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For Your Safety  
AOC LM-500  
• 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.  
Precautions  
• Do not use the monitor near water, e.g. near a  
bathtub, washbowl, kitchen sink, laundry tub,  
swimming pool or in a wet basement.  
• 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  
• 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.  
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.  
• Do not overload power strips and extension  
cords. Overloading can result in fire or electric  
shock.  
• 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. 3.5A.  
• Disconnect the power cord to stop the power  
supply to the monitor.  
• The wall socket should be installed near the  
equipment and should be easily accessible.  
AOC LM-500  
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For Your Safety  
AOC LM-500  
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 life of the fluorescent light used in the LCD  
monitor is approximately 20,000 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.  
The supplied power cord is a NEMA 5-15 style  
plug. It is UL-listed and CSA labeled for  
125 volts AC.  
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.  
AOC LM-500  
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Before You Operate the Monitor  
AOC LM-500  
Installing & Removing the Base  
General Features:  
Package Contents  
• 38.1cm(15") TFT Color LCD Monitor  
The box that your monitor was shipped in should  
have included the following items:  
• Crisp, Clear Display for Windows  
1. LM-500 LCD Monitor  
• Supports Resolutions up to 1024 X 768 pixels  
@75Hz  
2. Power Cord  
3. Windows 95/98/2000/ME/XP INF Driver Disk  
4. Quick Start Guide  
• EPA ENERGY STAR®  
• Ergonomic Design  
5. Booklet (Containing Warranty & Safety  
Information)  
• Space Saving, Compact Case Design  
AOC LM-500  
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Before You Operate the Monitor  
AOC LM-500  
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 your LCD monitor's  
power input socket.  
If the AC outlet is not grounded (with three  
holes), install the proper grounding adapter (not  
supplied).  
3. Plug the other end of the power cord into a  
grounded AC outlet or UL-approved power strip.  
AOC LM-500  
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Before You Operate the Monitor  
AOC LM-500  
Connecting the Wires Using An Optional Power Cord (Not Supplied)  
The power cord supplied with your monitor can  
only be connected to a grounded electrical wall  
socket or power strip.  
Follow these steps:  
1. Connect the built-in video cable into the 15-pin  
connector on the back of your computer and  
tighten the two screws.  
If you wish to connect your monitor to a power  
supply using the power input socket on the back of  
your computer, you must purchase a power cord  
with CEE-22 terminated connectors (see  
illustration above).  
2. Connect the power cord into your LCD  
monitor's power input socket.  
3. Plug the other end of the power cord into the  
power output socket on your PC.  
AOC LM-500  
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Before You Operate the Monitor  
AOC LM-500  
Adjusting the Viewing Angle  
For optimal viewing, adjust the monitor's angle to  
your own preference.  
• Do not touch the LCD screen when you  
change the angle. It may cause damage or  
breakage.  
• Hold the stand firmly when you change the  
monitor's angle.  
• Be careful to avoid pinching your hand in the  
swivel base.  
• You can adjust the monitor's angle from  
-5° to 45°.  
AOC LM-500  
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Operating Instructions  
AOC LM-500  
Front Panel Buttons  
Auto: Press this button to automatically set  
the H-Position, V-Position, Clock and Focus  
settings.  
Power Button: Press this button to put the  
monitor into Off mode. The power indicator  
light will turn orange. Press and hold this  
button again to restore the monitor to  
normal operating mode.  
Shuttle Knob: Press this knob to open the  
OSD window or select a highlighted function.  
Rotate this knob to switch functions or adjust  
settings.  
On-screen Display (OSD): Press the  
Shuttle Knob button to open the OSD  
window and adjust settings on your  
monitor.  
Power Indicator: A green light indicates that  
the monitor is on. An orange light indicates  
that the monitor is in Off mode.  
(See next page.)  
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AOC LM-500  
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Operating Instructions  
AOC LM-500  
Adjusting the OSD Settings  
1. Press the Shuttle Knob button to open the  
5. To save and exit, highlight the EXIT icon and  
press Shuttle Knob or leave the monitor  
alone for 10 seconds. If you want to adjust any  
other function, repeat steps 2-4.  
OSD window.  
2. Rotate the Shuttle Knob 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 the Shuttle Knob again to open the  
function window.  
4. Rotate the Shuttle Knob to change the settings  
of the function.  
AOC LM-500  
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Operating Instructions  
AOC LM-500  
Plug & Play DDC1/2B Feature  
How to Install INF & ICM File  
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.  
1. Insert the Windows 95/98/2000/ME/XP INF  
Driver Disk into your floppy drive.  
2. Follow the Add New Hardware Wizard  
instructions on the screen.  
3. If the wizard asks for the location of the driver  
file, select drive A and press Next.  
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.  
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Technical Support (FAQ)  
AOC LM-500  
Problem  
Possible Solution  
Power LED is not ON • Make sure the power cord is properly connected to a grounded power outlet  
and to the monitor.  
No Plug & Play  
• 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)  
Picture is fuzzy  
• 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.  
AOC LM-500  
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Technical Support (FAQ)  
AOC LM-500  
Problem  
Possible Solution  
• Adjust the CLOCK1 and FOCUS2 settings 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 20,000 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.  
AOC LM-500  
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Technical Support (FAQ)  
AOC LM-500  
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  
640 x 480  
640 x 480  
800 x 600  
60 Hz  
800 x 600  
60.3 Hz  
70 Hz  
800 x 600  
800 x 600  
832 x 624  
1024 x 768  
1024 x 768  
1024 x 768  
1024 x 768  
72.2 Hz  
75 Hz  
70 Hz  
70 Hz  
74.5 Hz  
60 Hz  
72.8 Hz  
75 Hz  
70 Hz  
66.67 Hz  
56.3 Hz  
75 Hz  
74.92 Hz  
AOC LM-500  
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Appendix  
AOC LM-500  
Specifications  
Plug & Play  
VESA DDC1/  
2BTM  
LCD  
Driving  
system  
TFT Color LCD  
Panel  
Input Connector  
D-Sub 15-pin  
Size  
15.0" (38.1 cm)  
Diagonal  
Input Video Signal  
Analog:  
0.7 Vpp  
75 OHM, Positive  
Pixel pitch  
(0.3 mm) (H)  
x
(0.3 mm) (V)  
Maximum Screen Size  
Power Source  
Horizontal:  
12.0" (304.1 mm)  
Vertical:  
9.0" (228.1 mm)  
Viewable  
angle  
100° (H) 80° (V)  
50 milliseconds  
Input  
Response  
time  
100~264 VAC,  
47~63 Hz  
Video  
Red, Green, Blue  
Analog Interface  
Environmental  
Considerations  
Operating Temp:  
32° to 122°F  
(0° to 50°C)  
Separate  
Sync.  
H/V TTL  
H-Frequency  
V-Frequency  
30 kHz - 60 kHz  
50-75 Hz  
Storage Temp:  
13° to 140°F  
(-25° to 60°C)  
Display Colors  
16.7 million colors  
Operating  
Humidity:  
Dot Clock  
80 MHz  
10% to 90%  
Maximum Resolution  
1024 x 768 pixels  
Weight  
9.9 lbs. (4.5 Kg)  
AOC LM-500  
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Appendix  
AOC LM-500  
Optimal Viewing Mode: 1024 x 768 x 75 Hz  
Specifications (continued)  
Front Panel Buttons  
Auto  
Shuttle Knob  
Power  
Power Indicator  
External  
Controls:  
Functions Contrast  
Brightness  
Focus  
Clock  
H-Position  
V-Position  
Language  
6500° K  
7800° K  
RGB Color temp.  
Reset  
Exit  
EPA ENERGY  
STAR®  
Yes  
Power Consumption  
(Maximum)  
25 Watts  
Regulatory  
Compliance  
TCO92, UL, CSA,  
FCC, TÜV/GS, CE  
AOC LM-500  
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Appendix  
AOC LM-500  
Factory Preset Timing Table  
Resolution  
(in pixels)  
Horizontal  
Frequency  
Vertical  
Frequency  
Standard  
VGA  
720 × 400  
31.47 kHz  
70 Hz  
640 × 480  
640 × 480  
640 × 480  
800 × 600  
800 × 600  
832 × 624  
1024 × 768  
1024 × 768  
1024 × 768  
1024 × 768  
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  
60 Hz  
66.6 Hz  
75 Hz  
60 Hz  
75 Hz  
75 Hz  
60 Hz  
70 Hz  
75 Hz  
74.9 Hz  
SVGA  
XGA  
AOC LM-500  
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Appendix  
AOC LM-500  
Connector Pin Assignment  
Pin Number  
Description  
Pin Number  
Description  
+5V  
1
2
3
4
5
6
7
8
Red  
9
Green  
10  
11  
12  
13  
14  
15  
Detect Cable  
NC  
Blue  
Ground  
Ground  
R-Ground  
G-Ground  
B-Ground  
DDC-Serial Data  
H-Sync  
V-Sync  
DDC-Serial Clock  
AOC LM-500  
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