Samsung Syncmaster 920t Quick Start Guide

  
 
This box appears during normal operation if the video cable becomes disconnected or 
damaged. 
 
4. Turn off your monitor and reconnect the video ca ble; then turn on both your computer and the 
monitor.  
If your monitor screen remains blank after using the previous procedure, check your video 
controller and computer system; your  monitor is functioning properly. 
 
 
 Warning Messages  
  If there is something wrong with the input signal, the message below appears on the screen 
or the screen...

 
 
Before calling for service, 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 
Information section or contact your dealer .
 
 
SymptomCheck ListSolutions
No images on the 
screen. I cannot turn 
on the monitor.Is the power cord connected 
properly?Check the power cord connection 
and supply.
Can you see  Check Signal Cable  
on the screen? (When connecting D-Sub cable)  
Check the signal cable...

display will work properly but the 
Not Optimum Mode, 
Recommended mode : 1280 x 
1024 60Hz message appears for 
one minute and then disappears.  
Please change to the recommended 
mode during this one-minute period. 
 
(The message is displayed again if 
the system is rebooted.) 
There is no image on the screen.  
Is the power indicator on the monitor 
blinking at 1 second intervals?The monitor is in PowerSaver mode. 
 
Press any key on the keyboard to 
activate the monitor and restore the 
image on the...

 
The screen colors 
have changed after 
changing the video 
card.Settings. 
Has the video card been set 
properly?Set the video card by referring to the 
video card manual. 
There is a message 
that reads 
Unrecognized 
monitor, Plug & Play 
(VESA DDC) monitor 
found. Have you installed the monitor 
driver?Install the monitor driver according 
to the 
Driver Installation Instructions .
See the video card manual to see if 
the Plug & Play (VESA DDC) 
function can be supported. Install the monitor driver...

case/LCD Panel?cloth, using either a cleaning solution or plain water.  
 
Do not leave any remains of the detergent nor scratch the case. 
Do not allow any water to go inside the monitor.  
 
 Self-Test Feature Check  
Self-Test Feature Check  |  Warning Messages  |  Environment  |  Useful Tips
 
Your monitor provides a self test feature that allows you to check whether your monitor is 
functioning properly.  
 
 
 
   Self-Test Feature Check 
 
1. Turn off both your computer and the monitor.  
2....

  
 Useful Tips 
 
zA monitor recreates visual signals received from  the computer. Therefore, if there is trouble with 
the computer or the video card, this can cause the monitor to become blank, have poor coloring, 
noise, unavailable video mode, etc.  In this case, first check the source of the problem, and then 
contact a service center or your dealer.  
 
zJudging the monitors working condition   
If there is no image on the screen or a  Not Optimum Mode, Recommended mode : 1280 x 
1024 60Hz...

 
 
 General  
General
Model NameSyncMaster 720B/721B
LCD Panel
Size17.0 inch diagonal
Display area337.92(H) x 270.336(V)
Pixel Pitch0.264(H) x 0.264(V)
Typea-si TFT active matrix
Synchronization
Horizontal30 ~ 81 kHz
Vertical56 ~ 75 Hz
Display Color
16,194,277 Colors
Resolution
Optimum resolution1280 x 1024 @60Hz
Maximum resolution1280 x 1024 @75Hz
Input Signal, Terminated
RGB Analog , Composite Sync, SOG 
0.7Vp-p Positive at 75 ohms, Separate H/V sync, TTL level positive or negative 
Maximum Pixel...

Dimensions (WxDxH)/ Weight
388 x 50.4 x 323.90 mm 
388 x 215.7 x 406.3 mm (After installation of Stand) 
388 x 77.0 x 323.9 mm (After folding the Stand) / 6.0kg
VESA Mounting Interface
75mm x 75mm (for use with Specialty(Arm) Mounting hardware.)
Environmental considerations
OperatingTemperature: 50°F ~ 104°F(10°C ~ 40°C)  
Humidity: 10% ~ 80%, non-condensing
StorageTemperature: -4°F ~113°F (-20°C ~ 45°C)  
Humidity: 5% ~ 95%, non-condensing
Plug and Play Capability
This monitor can be inst alled on any...

   
 
If the signal transferred from the computer is t
he 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 adjust the screen as follows.  
 
Table 1. Preset Timing Modes 
Display Mode
Horizontal 
Frequency  (kHz)Vertical 
Frequency  (Hz) Pixel Clock (MHz) Sync Polarity  (H/V)
MAC, 640 x 480 35.000 66.667 30.240 -/- 
MAC, 832 x 624  49.726  74.551...

 
 
 General  
General
Model NameSyncMaster 720T
LCD Panel
Size17.0 inch diagonal
Display area337.92(H) x 270.336(V)
Pixel Pitch0.264(H) x 0.264(V)
Typea-si TFT active matrix
Synchronization
Horizontal30 ~ 81 kHz
Vertical56 ~ 75 Hz
Display Color
16,194,277 Colors
Resolution
Optimum resolution1280 x 1024 @60Hz
Maximum resolution1280 x 1024 @75Hz
Input Signal, Terminated
RGB Analog , DVI Compliant Digital RGB  
Composite Sync, SOG, 0.7Vp-p Positive at 75 ohms 
Separate H/V sync, TTL level positive or...