Samsung Syncmaster 2494lw User Manual

							Q & A
Q:How can I change the frequency?
A:
The frequency can be changed by reconfiguring the video card.
A: Note  that  video  card  support  can  vary,  depending  on  the  version  of  the  driver  used. (Refer to the computer or the video card manual for details.)
Q: How can I adjusts the resolution?
A: Windows XP: Set the resolution in the Control Panel  → Appearance and Themes → Display → Set-
tings.
A: Windows ME/2000: Set the resolution in the Control Panel  → Display → Settings.
* Contact the video card manufacturer for details.
Q: How can I set the Power Saving function?
A: Windows XP: Set the resolution in the Control Panel  → Appearance and Themes → Display → Screen
Saver.
Set the function in the BIOS-SETUP of the computer. (Refer to the Windows / Computer
Manual).
A: Windows ME/2000: Set the resolution at the Control Panel  → Display → Screen Saver.
Set the function in the BIOS-SETUP of the computer. (Refer to the Windows / Computer
Manual).
Q: How can I clean the outer case/LCD Panel?
A: Disconnect the power cord and then clean the monitor with a soft cloth, using either a cleaning solution or plain water.
Do  not  leave  any  detergent  or  scratches  on  the  case.  Do  not  let  any  water  enter  the
monitor.  Note
Before  calling 

for assistance, check the information in this section to see if you can remedy
any problems yourself. If you do need assistance, please call the phone number on the In-
formation section or contact your dealer. Troubleshooting
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							Specifications
General
General
Model Name SyncMaster 2494LW
LCD Panel
Size
23.6 " diagonal (59 cm)
Display area 521.28 mm (H) x 293.22 mm (V)
Pixel Pitch
0.2715 mm (H) x 0.2715 mm (V)
Synchronization
Horizontal 30 ~ 81 kHz
Vertical
56 ~ 60 Hz
Display Color 16.7 M
Resolution
Optimum resolution
1920x1080@60 Hz (RB)
Maximum resolution 1920x1080@60 Hz (RB)
Input Signal, Terminated
RGB Analog, DVI(Digital Visual Inter face)
0.7 Vp-p ±5 %
Separate H/V sync, Composite
TTL level (V high ≥ 2.0 V, V low ≤ 0.8 V)
Maximum Pixel Clock
164 MHz
Power Supply
AC 100 - 240 V~ (+/- 10 %), 50/60 Hz ± 3 Hz
Signal Cable
15pin-to-15pin D-sub cable, Detachable
DVI-D to DVI-D connector, Detachable
Dimensions (W x H x D) / Weight
Simple stand
572.8 x 363.4 x 67.5 mm ( 
22.6 x 14.3 x 2.7 inch )(Without
Stand)
572.8  x  420.4 
x  227.4  mm (  22.6  x  16.6  x  9.0  inch )  (With
Stand) /6.0 kg (13.2 Ibs)
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							VESA Mounting Interface
200 x 100 mm
Environmental considerations
Operating
Temperature : 50°F ~ 104°F (10°C ~ 40°C)
Humidity : 10 % ~ 80 %, non-condensing
Storage
Temperature : -4°F ~ 113°F (-20°C ~ 45°C)
Humidity : 5 % ~ 95 %, non-condensing
Plug and Play Capability This monitor can be installed on any Plug & Play compatible system. The interac-
tion 
of 
the  monitor  and  the  computer  systems  will  provide  the  best  operating
conditions and monitor settings. In most cases, the monitor installation will proceed
automatically, unless the user wishes to select alternate settings.
Dot Acceptable TFT-LCD panels manufactured by using advanced semiconductor technology with
precision 
of 

1ppm (one millionth) above are used for this product. But the pixels of
RED,  GREEN,  BLUE  and  WHITE  color  appear  to  be  bright  sometimes  or  some
black pixels may be seen. This is not from bad quality and you can use it without
any problems.
For  example,  the  number  of  TFT-LCD  sub  pixels  contained  in  this  product  are
6,220,800.  Note
Design and specifications are subject to change without prior notice.  Class B Equipment (Information Communication equipment for residential use)
This  product 
 complies  with  the  Electromagnetic  Compatibility  Directives  for  residential  use
and can be used in all areas including common residential areas. (Class B equipment emits
less electromagnetic waves than Class A equipment.)
PowerSaver This monitor has a built-in power management system called PowerSaver. This system saves
energy by switching your monitor to low-power mode when it has not been used for a certain
amount of time. The monitor automatically returns to normal operation when you press a key
on the keyboard. For energy conservation, turn your monitor OFF when it is not needed, or
when leaving it unattended for long periods. The PowerSaver system operates with a VESA
DPM  compliant  video  card  installed  in  your  computer.  Use  the  software  utility  installed  on
your computer to set up this feature.
State Normal Operation Power saving
mode Power off (Power-Switch
off) Power Indicator On blinking Off
Power Con-
sumption 44 watts less than 1 watts
(off-mode) less than 1 watt Specifications
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							This  monitor  is  EPA  ENERGY  STAR
®
 compliant  and
ENERGY2000  compliant  when  used  with  a  computer
equipped with VESA DPM functionality.
As an ENERGY STAR ®
 Partner, SAMSUNG has deter-
mined  that  this  product  meets  the  ENERGY  STAR ®
guidelines for energy efficiency. Preset Timing Modes
If the 

signal transferred from the computer is the same as the following Preset Timing Modes,
the screen will be adjusted automatically. However, if the signal differs, the screen may go
blank while the power LED is on. Refer to the video card manual and adjusts the screen as
follows.
Display Mode Horizontal
Frequency (kHz) Vertical Fre-
quency (Hz) Pixel Clock
(MHz) Sync Polarity
(H/V) VESA, 640 x 480 31.469 59.940 25.175 -/-
VESA, 800 x 600 35.156 56.250 36.000 +/+
VESA, 800 x 600 37.879 60.317 40.000 +/+
VESA, 1024 x 768 48.363 60.004 65.000 -/-
VESA, 1280 x 800 49.702 59.810 83.500 -/+
VESA, 1280 x 960 60.000 60.000 108.000 +/+
VESA, 1280 x 1024 63.981 60.020 108.000 +/+
VESA,1440 x 900 55.935 59.887 106.500 -/+
VESA,1600 x 1200 75.000 60.000 162.000 +/+
VESA,1680 x 1050 65.290 59.954 146.250 -/+
VESA,1920 x 1080 66.587 59.934 138.500 +/-
Horizontal Frequency
The time to scan one line connecting the right edge
to 
the 

left edge of the screen horizontally is called the
Horizontal Cycle and the inverse number of the Hor-
izontal  Cycle  is  called  the  Horizontal  Frequency.
Unit: kHz
Vertical Frequency
Like a fluorescent lamp, the screen has to repeat the
same  image 
 many  times  per  second  to  display  an
image to the user. The frequency of this repetition is
called the Vertical Frequency or Refresh Rate. Unit:
Hz
General General
Model Name SyncMaster 2494SW
LCD Panel
Size
24 " diagonal (61 cm)
Display area 531.36 mm (H) x 298.89 mm (V) Specifications
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							LCD Panel
Pixel Pitch
0.2768 mm (H) x 0.2768 mm (V)
Synchronization
Horizontal
30 ~ 81 kHz
Vertical
56 ~ 60 Hz
Display Color 16.7 M
Resolution
Optimum resolution
1920x1080@60 Hz (RB)
Maximum resolution 1920x1080@60 Hz (RB)
Input Signal, Terminated
RGB Analog, DVI(Digital Visual Inter face)
0.7 Vp-p ±5 %
separate H/V sync, Composite
TTL level (V high ≥ 2.0 V, V low ≤ 0.8 V)
Maximum Pixel Clock
164 MHz
Power Supply
AC 100 - 240 V~ (+/- 10 %), 50/60 Hz ± 3 Hz
Signal Cable
15pin-to-15pin D-sub cable, Detachable
DVI-D to DVI-D connector, Detachable
Dimensions (W x H x D) / Weight
Simple stand
572.8 x 363.7 x 67.5 mm ( 22.6 x 14.3 x 2.7 inch) (Without
Stand)
572.8  x 
420.4 
x  227.4  mm (  22.6  x  16.6  x  9.0  inch ) (With
Stand) /6.0 kg (13.2 Ibs) VESA Mounting Interface
200 x 100 mm
Environmental considerations
Operating
Temperature : 50°F ~ 104°F (10°C ~ 40°C)
Humidity : 10 % ~ 80 %, non-condensing
Storage
Temperature : -4°F ~ 113°F (-20°C ~ 45°C)
Humidity : 5 % ~ 95 %, non-condensingSpecifications
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							Plug and Play Capability
This monitor can be installed on any Plug & Play compatible system. The interac-
tion 
of 
the  monitor  and  the  computer  systems  will  provide  the  best  operating
conditions and monitor settings. In most cases, the monitor installation will proceed
automatically, unless the user wishes to select alternate settings.
Dot Acceptable TFT-LCD panels manufactured by using advanced semiconductor technology with
precision 
of 

1ppm (one millionth) above are used for this product. But the pixels of
RED,  GREEN,  BLUE  and  WHITE  color  appear  to  be  bright  sometimes  or  some
black pixels may be seen. This is not from bad quality and you can use it without
any problems.
For  example,  the  number  of  TFT-LCD  sub  pixels  contained  in  this  product  are
6,200,800  Note
Design and specifications are subject to change without prior notice.  Class B Equipment (Information Communication equipment for residential use)
This  product 

complies  with  the  Electromagnetic  Compatibility  Directives  for  residential  use
and can be used in all areas including common residential areas. (Class B equipment emits
less electromagnetic waves than Class A equipment.)
PowerSaver This monitor has a built-in power management system called PowerSaver. This system saves
energy by switching your monitor to low-power mode when it has not been used for a certain
amount of time. The monitor automatically returns to normal operation when you press a key
on the keyboard. For energy conservation, turn your monitor OFF when it is not needed, or
when leaving it unattended for long periods. The PowerSaver system operates with a VESA
DPM  compliant  video  card  installed  in  your  computer.  Use  the  software  utility  installed  on
your computer to set up this feature.
State Normal Operation Power saving
mode Power off (Power button)
EPA/ENERGY 2000 Power Indicator On blinking Off
Power Con-
sumption 44 watts less than 1 watts
(Off-mode) less than 1 watt This  monitor  is  EPA  ENERGY  STAR
®
 compliant 

and
ENERGY2000  compliant  when  used  with  a  computer
equipped with VESA DPM functionality.
As an ENERGY STAR ®
 Partner, SAMSUNG has deter-
mined  that  this  product  meets  the  ENERGY  STAR ®
guidelines for energy efficiency. Preset Timing Modes
If the 

signal transferred from the computer is the same as the following Preset Timing Modes,
the screen will be adjusted automatically. However, if the signal differs, the screen may go
blank while the power LED is on. Refer to the video card manual and adjusts the screen as
follows. Specifications
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							Display Mode Horizontal
Frequency (kHz) Vertical Fre-
quency (Hz) Pixel Clock
(MHz) Sync Polarity
(H/V) VESA, 640 x 480 31.469 59.940 25.175 -/-
VESA, 800 x 600 35.156 56.250 36.000 +/+
VESA, 800 x 600 37.879 60.317 40.000 +/+
VESA, 1024 x 768 48.363 60.004 65.000 -/-
VESA, 1280 x 800 49.702 59.810 83.500 -/+
VESA, 1280 x 960 60.000 60.000 108.000 +/+
VESA, 1280 x 1024 63.981 60.020 108.000 +/+
VESA,1440 x 900 55.935 59.887 106.500 -/+
VESA,1600 x 1200 75.000 60.000 162.000 +/+
VESA,1680 x 1050 65.290 59.954 146.250 -/+
VESA,1920 x 1080 66.587 59.934 138.500 +/-
Horizontal Frequency
The time to scan one line connecting the right edge
to 
the 
left edge of the screen horizontally is called the
Horizontal Cycle and the inverse number of the Hor-
izontal  Cycle  is  called  the  Horizontal  Frequency.
Unit: kHz
Vertical Frequency
Like a fluorescent lamp, the screen has to repeat the
same  image 
 many  times  per  second  to  display  an
image to the user. The frequency of this repetition is
called the Vertical Frequency or Refresh Rate. Unit:
Hz Specifications
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							Information
For Better Display
 Adjust the computer resolution and screen injection rate (refresh rate) on the
computer  as 
described  below  to  enjoy  the  best  picture  quality.  You  can  have  an
uneven picture quality on screen if the best picture quality is not provided for TFT-
LCD.
• Resolution: 1920 x 1080
• Vertical frequency (refresh rate): 60 Hz  TFT-LCD panels manufactured by using advanced semiconductor technology
with a 
 precision of 1ppm (one millionth) and above is used for this product. But the
pixels of RED, GREEN, BLUE and WHITE color seem to be bright sometimes or
some of black pixels could be seen. This is not from bad quality and you can use
it without any problems.
• For example, the number of TFT-LCD sub pixels contained in this product are 6,220,800.   When  cleaning  the  monitor  and  the  panel  outside,  please  apply  the  recom-
mended  small 

amount of cleaner by using a soft cloth to polish. Do not force the
LCD area but rub softly.
If excessive force is applied, you may stain it.   If  you  are  not  satisfied  with  the  picture  quality,  you  can  get  better  quality  of
picture  by 

performing the " Auto Adjustment  function" in display screen that is ap-
peared as window termination button is pressed.
If there's still noise after the automatic adjustment, use the  Fine/Coarse adjustment
function.  When viewing a fixed screen for an extended period of time, a residual image
or blurriness may appear.
Change  the 

mode to energy save or set a screensaver to move the picture when
you need to be away from the monitor for an extended period of time.
PRODUCT INFORMATION (Image Retention Free) LCD Monitors 

and TVs may have image retention when switching from one image to another
especially after displaying a stationary image for a long time.
This  guide  is  to  demonstrate  correct  usage  of  LCD  products  in  order  to  protect  them  from
Image retention.  
Warranty
Warranty does not cover any damage caused by image retention.
Burn-in is not covered by the warranty.
 What is Image retention ?
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							During normal operation of a LCD panel, pixel image retention doesn't occur. How-
ever, 
if 
the same image is displayed for a long time, a slight difference in electric
charge accumulates between the two electrodes which encase the liquid crystal.
This may cause the liquid crystal to build up in a certain areas of the display. Thus,
the  previous  image  is  retained  when  switching  to  a  new  video  image.  All  display
products, including LCD, are subject to image retention. This is not a product de-
fect.
Please follow the suggestions below to protect your LCD from image retention.
 Power Off, Screen Saver, or Power Save Mode
Ex)
• Turn the power off when using a stationary pattern.
• Turn the power off for 4 hours after 20 hours in use
• Turn the power off for 2 hours after 12 hours in use
• Use a Screen saver if possible • Screen saver in one color or a moving image is recommended.
• Set the Monitor to power off with the PC Display Properties Power Scheme.
 Suggestions for specific applications
Ex) Airports, Transit Stations, Stock Markets, Banks, and Controlling Systems We
recommend that you follow set up of your display system program as below:
 Display Information together with Logo or Moving image cycle.
Ex)  Cycle  :  Display  Information  for  1  hour  followed  by  a  Display  Logo  or  moving
image for 1 minute.
 Change the Color Information periodically (Use 2 different colors).
Ex) Rotate the Color Information with 2 colors every 30 minutes. Avoid using a combination of characters and background color with large difference
in luminance.
Avoid using Grey colors, which can cause Image retention easily.
•
Avoid: Colors with big difference in luminance (Black & White, Grey)
Ex) Information
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							• Recommended settings: Bright colors with little difference in luminance
•Change the characters color and background color every 30 minutes
Ex) • Every 30 minutes, change the characters with movement.
Ex)  The best way to protect your monitor from Image retention is to set your PC or
System to operate a Screen Saver program when you are not using it.
Image retention may not occur when a LCD panel is operated under normal con-
ditions.
Normal conditions are defined as continuously changing video patterns. When the
LCD panel is operated for a long time with a fixed pattern (-over 12 hours-), there
may be slight difference in voltage between electrodes that work the liquid crystal
(LC)  in  a  pixel.  The  voltage  difference  between  electrodes  increases  with  time,
forcing the liquid crystal to lean. When this occurs, the previous image may be seen
when the pattern is changed.
To prevent this, the accumulated voltage difference must be decreased. Information
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