Daewoo L523SC User manual

TFT-LCD MONITOR
USER’S GUIDE
Model No :L523SC

1. Read all of these instructions.
2. Save these instructions for later use.
3. Unplug this monitor from the
wall outlet before cleaning. Do not
use liquid cleaners or aerosol
cleaners. Use a damp cloth for
cleaning.
4. Do not use attachments not recommended by
the monitor manufacturer as they may cause
hazards.
5. Do not use this monitor near water, e.g., near a
bathtub, washbowl, kitchen sink, or laundry tub,
in a wet basement, or near a swimming pool, etc.
6. Do not place this monitor on an
unstable cart, stand, or table. The
monitor may fall, causing serious
injury to a child or adult, and
serious damage to the appliance.
7. Slots and openings in the
cabinet and the back or bottom are
provided for ventilation, to ensure
reliable operation of the monitor,
and to protect it from overheating.
These openings must not be blocked or covered.
The openings should never be blocked by
placing the monitor on a bed, sofa, rug, or other
similar surface. This monitor should never be
placed near or over a radiator or heat register.
This monitor should not be placed in a built-in
installation such as a bookcase unless proper
ventilation is provided.
8. This monitor should be operated
only from the type of power source
indicated on the marking label. If
you are not sure of the power
supplied to your home, consult
your monitor dealer or local power company.
9. This monitor is equipped with a
3-wire grounding-type plug, That
is, a plug having a third
(grounding) pin. This plug will
only fit into a grounding-type
power outlet. This is a safety feature. If you are
unable to insert the plug into the outlet, contact
your electrician to replace your obsolete outlet.
Do not defeat the purpose of the grounding-type
plug.
10. Do not allow anything to rest
on the power cord. Do not locate
this monitor where the cord will be
abused by people walking on it.
11. Follow all warnings and instructions marked
on the monitor.
IMPORTANT SAFEGUARDS
12. For added protection for this
monitor during a lightning storm,
or when it is left unattended and
unused for long periods of time,
unplug it from the wall outlet. This
will prevent damage to the monitor and/or the
computer due to lightning and power line surges.
13. Do not overload wall outlets and extension
cords as this can result in fire or electric shock.
14. Never push objects of any kind into this
monitor through cabinet slots, as they may touch
dangerous voltage points or short out parts that
could result in a fire or electric shock. Never spill
liquid of any kind on the monitor.
15. Do not attempt to service this
monitor yourself, as opening or
removing covers may expose you
to dangerous voltages or other
hazards. Refer all servicing to
qualified service personnel.
16. Unplug this monitor from the wall outlet and
refer servicing to qualified service personnel
under the following conditions:
a. When the power cord or plug is damaged or
frayed.
b. If liquid has been spilled into the monitor.
c. If the monitor has been exposed to rain or
water.
d. If the monitor does not operate normally by
following the operating instructions. Adjust only
those controls that are covered by the operating
instructions, as improper adjustment of other
controls may result in damage and will often
require extensive work by a qualified technician
to restore normal operation.
e. If the monitor has been dropped or the cabinet
has been damaged.
f. When the monitor exhibits a distinct change in
performance, this indicates a need for service.
17. When replacement parts are
required be sure the service
technician has used replacement
parts specified by the manufacturer
that have the same characteristics as
the original part. Unauthorized substitutions
may result in fire, electric shock, or other
hazards.
18. Upon completion of any service or repairs to
this monitor, ask the service technician to
perform routine safety checks to determine that
the monitor is safe to operate.
As an ENERGY STAR®Partner, Dawoo Lucoms Co, Ltd. has determined that this
product meets the Energy Star®guidelines for energy efficiency.
The product is also designed for IT power system with phase to phase voltage of 230V.
FEDERAL COMMUNICATIONS COMMISSION
RADIO FREQUENCY INTERFERENCE STATEMENT
NOTE : This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures :
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment to an outlet on a circuit different from that to
which the receiver is connected.
- Consult the dealer or an experienced radio or TV technician for help.
CAUTION :Any changes or modifications not expressly approved by the
party responsible for compliance could void the user’s authority to operate the
equipment.
CANADIAN NOTICE
AVIS CANADIEN
This Class B digital apparatus meets all requirements of the Canadian
Interference-Causing Equipment Regulations.
Cet appareil numérique de la Class B respecte toutes les exigences du
Règlement sur le matériel brouilleur du Canada.
European Union Notice
Products with the CE Marking comply with both the EMC Directive (89/336/EEC) and the
the Low Voltage Directive (73/23/EEC) issued by the Commission of the European
Community.
Compliance with these directives implies conformity to the following European Norms (in
brackets are the equivalent international standards):
•EN55022 (CISPR 22) - Electromagnetic Interference
•EN55024 - Immunity Test for ITE Product
•EN60950 (IEC950) - Product Safety
•EN61000-3-2 (IEC555-2) - Power Line Harmonics

CONTENTS
CONTENTS
Introduction ............................................................................. 1
Product Features ................................................................. 2
Setup ......................................................................................... 3
Connecting the 15 Pin Signal Cable and Power Cord......... 3
Connecting the Others .........................................................4
Operation & Adjustment ...................................................... 5
Specifications ......................................................................... 13
Factory Preset Timings ......................................................... 15
Changing the Stand ............................................................... 16
Troubleshooting ..................................................................... 18
This manual explains how to correctly install, operate and get the
best performance from your monitor. Please read this user’s
guide carefully before installing your monitor, then keep it near
your monitor for quick reference.
First, please check that the contents of the box corresponds with
the following checklist :
TFT LCD monitor
Power cord
15 pin signal cable
Audio cable (mini-jack & RCA cable)
Remote Control
User’s guide
If any item is missing or damaged, please contact your dealer.
Please keep the box and packing materials so that you may
properly store or transport your monitor.
English - 1
INTRODUCTION
INTRODUCTION

English - 3
1. Turn off the computer and monitor.
2. Connect the 15 pin signal cable to the output port of the video
card in your computer and monitor.
3. Tighten the screws of the 15 pin signal cable.
4. Plug the power cord into the AC receptacle located on the back
of the monitor.
5. Plug the other end of the power cord into the AC outlet.
SETUP
SETUP
CONNECTING THE 15 PIN SIGNAL CABLE AND POWER CORD
English - 2
PRODUCT FEATURES
The monitor is designed for use in a small work area.
The convenient and user-friendly on-screen display allows for
easy and accurate adjustments of screen size, position and
screen color.
The monitor complies with the VESA Display Data Channel
(DDC) specification for Plug and Play compatibility.
Advanced microcircuitry makes setup and configuration fast
and effortless.
The monitor features Advanced Color Controls for fine-tuning
to meet your own personal tastes or application requirements.
Use the on-screen controls to adjust the color temperature,
RGB gain value for the best possible screen color and
intensity.
Press the menu button and activate the Self-Diagnosis menu to
determine whether your monitor is functioning normally, not
receiving a signal or is receiving a signal that is out of
scanning range.
Activate the higher refresh rates of the monitor to stabilize the
screen and eliminate the annoying flicker that contributes to
eye-strain and headaches.
The monitor supports the optimal display performance with
1024x768 at 75Hz.
The monitor can be connected to various types of video
devices with supporting video input signals like Composite
video(CVBS).
The internal stereo speakers make the end user enjoy audio
sound .
With the POWER LIGHT function added,you can enjoy the
bright screen for movie or any other multimedia utilization.
AC POWER AUDIO
RL
VIDEO
OUT IN
Power
Cord 15 pin
signal
cable

English - 5
OPERA
OPERATION & ADJUSTMENT TION & ADJUSTMENT
CONTROL PANEL
*
( ) : Hot Key
English - 4
CONNECTING THE OTHERS
AC POWER AUDIO
RL
VIDEO
OUT IN
12
3
Switches the monitor on
and off. Shows both normal operation
and power management status
with power indicator light.
POWER Indicator
POWER
1
34
2
Moves cursor to the right or
low window in the OSD
window and increases the
value of any selected function.
Moves cursor to the left or high
window in the OSD window and
decreases value of any selected
function.
( )
EXIT/POWER LIGHT
MENU 6
5
Turns the OSD (On-Screen
Display) window off and moves
from sub menu to top menu in the
OSD window.
While the OSD screen is off, you
can adjust the screen brightness
according to each situation.
Turns the OSD window on.
AUTO
7
Launches the AUTO
TRACKING function directly.
*
( )
AUTO EXIT
POWER LIGHT
MENU BRIGHTNESS
1
76453
2
*( )
*
1. Plug the connector to the BNC IN/OUT port on the rear of
the monitor.
2. Plug the connector to AUDIO INPUT port , on the rear of
the monitor
3. Plug the headphone to headphonejack on the rear of the
monitor.
2
4
1
3
4

English - 7
English - 6
HOT KEY
MENU
EXIT
EXIT
SELECT
OSD
Color
Picture
Function
Misc.
Sound
OSD Menu
1024 x 768 75Hz
Contrast
Brightness
Gamma 0 1 2 3
Color Temp. 9300 6500 User
Color Adjust
100 - +
95 - + Contrast
Brightness
Gamma 0 1 2 3
Color Temp. 9300 6500 User
Color Adjust
100 - +
95 - + Contrast
Brightness
Gamma 0 1 2 3
Color Temp. 9300 6500 User
Color Adjust
100 - +
95 -+
OSD
Color
Picture
Function
Misc.
Sound
OSD Menu
1024 x 768 75Hz
OSD
Color
Picture
Function
Misc.
Sound
OSD Menu
1024 x 768 75Hz
EXIT
SELECT
When there is no OSD, if you press this
BRIGHTNESS button, you can adjust the
brightness directly.
: decreases brightness
: increases brightness
When there is no OSD, if you press this
AUTO button, you can use the best display
performance fit for a current mode.
AUTO TRACKING
1024 X 768 75Hz
Brightness 100 - +
The screen will be brightened progressively by
10%. If you carry out general PC works such
as document edition on the Movie mode,you
may shorten the life span of LCD panel.
Thus,it is recommended to verify the selected
mode before use.
Signal Source
Mode Select PC Game Movie
Reset YES NO
1024 X 768 75Hz
KEY PROCESS
AUTO
BRIGHTNESS
POWER LIGHT

COLOR
FUNCTION
English - 9
English - 8
OSD FUNCTIONS WITH USING PC
Choose different preset color temperatures or set your
own customized color parameters.
COLOR TEMP.
Adjust the position of the display horizontally (left or
right) and vertically (up or down).
H. POSITION &
V. POSITION
Remove any horizontal noise and clear or sharpen the
image of characters.
Adjust the width (horizontal size) of the screen
image.
PHASE
CLOCK
Adjust the display image quality (if the screen
proceed to scaling up).
SHARPNESS
Choose automatically the proper horizontal position
and vertical position & size of the screen image.
AUTO Adjust
Adjust the color.
COLOR
ADJUST
Adjust the contrast of image, the difference between
light and dark areas on the screen.
CONTRAST
Adjust the brightness of image.
BRIGHTNESS
PICTURE
Adjust the gamma correction.
GAMMA
ADJUSTMENT PROCEDURE
Adjust the CLOCK control.
Perform the AUTO
POSITION.
Is the H.Size
proper?
Is the
noise displayed on
the screen?
Perform the AUTO
TRACKING.
Is the
noise displayed on
the screen yet?
Is the
noise displayed on
the screen yet?
Adjust the CLOCK FINE
until the screen is cleared.
Yes
Yes
Yes
Yes
No
No
No
No End

English - 11
English - 10
OSD FUNCTIONS WITH USING VIDEO
OSD MENU
MISC.
Adjust the OSD. Transparency
Tranlucent
Select language for OSD.
LANGUAGE
Adjust the OSD position horizontally (left or right)
and vertically (up or down).
OSD H &V
POS.
Adjust the display OSD Menu.
OSD TIMER
Select input signal source.
SIGNAL
SOURCE
Select powerlight mode(PC/Game/Movie)POWER LIGHT
Reset the screen to the Factory Preset
Display Settings.
RESET
SOUND
Turn the audio sound on or off.SOUND
Increase or decrease audio volume.VOLUME
OSD
Adjust the display image quality (if the screen
proceed to scaling up).
SHARPNESS
Adjust the contrast of image.
CONTRAST
Adjust the brightness of image.
Adjust saturation of image.
BRIGHTNESS
SATURATION
Adjust the hues of image.
HUE
PICTURE
OSD MENU
Adjust the OSD. Transparency
Tranlucent
Select language for OSD.
LANGUE
Adjust the OSD position horizontally (left or right)
and vertically (up or down).
OSD H & V POS .
Adjust the display OSD Menu.
OSD TIMER
MISC.
Select input signal source.
SIGNAL
SOURCE
Select powerlight mode(PC/Game/Movie)
POWER LIGHT
Reset the screen to the Factory Preset Display
Settings.
RESET
SOUND
Turn the audio sound on or off.SOUND
Increase or decrease audio volume.VOLUME

Panel Size 15-inch(38cm) diagonal
Pixel Pitch 0.297 x 0.297 mm
Viewing Angle 65°(Right/Left)
55°(up), 55°(down)
Contrast Ratio 400:1 contrast ratio(typ)
Brightness 250cd/m2brightness(typ)
Color Filter RGB vertical stripe
Synchronization Horizontal 30 - 62 KHz
Vertical 50 - 75 Hz
Video Bandwidth 80MHz
Max Resolution 1024 x 768 75Hz
Optimal Resolution 1024 x 768 60Hz
Colors 16M Colors
Display Area 304.1 mm x 228.1 mm
PC Input Signal Sync H/V separate(TTL)
Video 15 pin mini D-sub(Analog RGB)
AV Input Signal Video CVBS(BNC), Composite. IN & OUT
Audio RCA Left+Right Input
Stereo Mini Jack Input & Output
Internal Speaker Output 2W(Left 1 W+Right 1 W)
Plug and Play VESA DDC Compatible
Power Source 100-240Vac, 50/60Hz(Free Voltage)
Power Consumption 26W
Dimension-W x H x D 370 x 352 x 205 mm(with stand)
370 x 312 x 60 mm(without stand)
English - 13
SPECIFICA
SPECIFICATIONS TIONS
English - 12
a
a
SELF DIAGNOSIS
If there is no image, the Self Diagnosis screen will be displayed.
Self Diagnosis function checks if the status of the monitor screen
is No Signal, Out of range or None support.
No Signal screen is displayed when the D-
Sub signal connector is connected but the
status of the monitor is on DPMS mode.
Out of Range screen is displayed when the
applied frequency is under or over normal
range.
Normal range
(Non-interlaced mode only)
H : 30 - 62 KHz
V : 50 - 75 Hz
None support screen is displayed when the
applied frequency is under or over factory
preset timings.
Check cable screen is displayed when the
signal cable is disconnected.

English - 15
English - 14
F
FACTOR ACTORY PRESET TIMINGS Y PRESET TIMINGS
VESA MODES
IBM MODES
MAC MODES
THE OTHERS
VGA 640
X 480 60Hz 31.5 60 Non-interlaced
VGA 640
X 480 72Hz 37.9 72 Non-interlaced
VGA 640
X 480 75Hz 37.5 75 Non-interlaced
SVGA 800
X 600 56Hz 35.2 56 Non-interlaced
SVGA 800
X 600 60Hz 37.9 60 Non-interlaced
SVGA 800
X 600 72Hz 48.1 72 Non-interlaced
SVGA 800
X 600 75Hz 46.9 75 Non-interlaced
XGA 1024
X 768 60Hz 48.4 60 Non-interlaced
XGA 1024
X 768 70Hz 56.5 70 Non-interlaced
XGA 1024
X 768 75Hz 60.0 75 Non-interlaced
SXGA 1280
X 1024 60Hz 64.0 60 Non-interlaced
SXGA 1280
X 1024 75Hz 80.0 75 Non-interlaced
SXGA 1152
X 864 75Hz 67.5 75 Non-interlaced
SXGA 1280
X 960 60Hz 60.0 60 Non-interlaced
EGA 640
X 350 70Hz 31.5 70 Non-interlaced
DOS 720
X 400 70Hz 31.3 70 Non-interlaced
VGA 640
X 480 67Hz 35.0 67 Non-interlaced
SVGA 832
X 624 75Hz 49.7 75 Non-interlaced
SXGA 1152
X 870 75Hz 68.7 75 Non-interlaced
SXGA 1280
X 1024 70Hz 74.4 70 Non-interlaced
Mode H.Freq(KHz) V.Freq(Hz) Remark
Resolution
(dots
X lines)
Mode H.Freq(KHz) V.Freq(Hz) Remark
Resolution
(dots
X lines)
Mode H.Freq(KHz) V.Freq(Hz) Remark
Resolution
(dots
X lines)
Mode H.Freq(KHz) V.Freq(Hz) Remark
Resolution
(dots
X lines)
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
The LCD Monitor has only Non-interlanced modes without flicker.
The specification can be changed without any prior notice to improve the
quality of the product.
The LCD panel may have some defective pixels (e.g. slightly light or
dark) due to a characteristic of the LCD panel. But there is no defect in
your LCD product itself.
Weight-net/gross 4.2 / 5.5 Kg (9.26 / 12.1 Lbs)
Power Saving EPA, VESA DPMS, Nutek Compliant
Tilt Range 5° forward, 30° backward
Operating Temperature 10 ~ 40°C /50 ~ 104°F

English - 17
English - 16
CHANGING THE ST
CHANGING THE STAND AND
ATTACHING THE MONITOR WITH THE ARM-STAND(OPTION)
Tighten up screws at the locations
indicated by arrows.
Support
stand Surface for
stand
installation
This monitor’s installation surface is compatible with various kinds
of VESA standard stands.
Hole spacing : 100x100 mm
Screw Length : 8~12 mm
Removing Original Stand
1. Detach the rear cover of the stand with a screwdriver.
2. Remove the four screws connecting the stand and the body and the
stand is disassembled.
Turn off the monitor and pull out the power cable.
Place a cushion or a soft cloth on the floor and put the product on it with
the front of the monitor facing the floor.
2
1

English - 18
TROUBLESHOOTING
TROUBLESHOOTING
Check the audio cable are correctly connected to the
computer.
Adjust the volume after checking the sound is muted.
Check the audio system in the computer.
Adjust the volume on the OSD Menu.
Adjust the volume of the sound card in the computer.
Check if the video cable is correctly connected to the
computer and set to the video mode.
Adjust the Saturation or Hue on the OSD Menu in
the video mode.
Adjust the Sharpness on the OSD Menu in the video
mode.
Symptom
No sound.
Low sound.
No video.
Poor color in the
video.
Grainy picture in the
video.
Check
Adjust Clock to set the screen position and adjust
Clock fine until a noise isn’t displayed.
Check if power switch and computer power switch
are in the on position.
Check if the signal cable is correctly connected to
the video card.
Check if the pins of D subconnector are not bent.
Check if the computer is in the power- saving mode.
Check if power switch is in the on position.
Check if the power cord is correctly connected.
Check if the signal cable is suitable to the video card.
Adjust Clock or H&V Center to get the proper
image.
Keep the devices that may cause electrical
interference away from the monitor.
See the FCC information at the front cover of the
manual.
Adjust Contrast and Brightness.
Symptom
Picture is jitterd.
No picture.
POWER LED is not
lit.
Image is unstable.
Image is not
centered, too small
or too large.
Picture bounces or a
wave pattern is
present in the
picture.
Picture is blurred.
Check

S/N:9978634618