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Monitor SPECIFICATION: 

 
Vertical refresh rate :  

60-120 Hz 

Horizontal Scan rate:   

60- 81 KHz  (Kilo Hetrz).  

Horizontal and Vertical sync polarity :  recommended  

Negative polarity

 

(-,-)

 

Horizontal scan rate is  automatic for the above range.  
Maximum Resolution:  

1600x1200 

Monitor Adjusted for: 

1024x768  

Tube: 

   Sony 

Trinitron 

 

This monitor does not function with a notebook running at 31.5 Khz( VGA standard).

 

 

Running the monitor on regular video cards: 

 

This monitor runs fine on high resolution modes on any video card. It requires a special video 
card to run all the lower resolution modes properly on a PC. 
(mention that you want -81 Khz setting). We recommend 

www.mirage-mmc.com

 to 

support all the low resolution and high resolution modes. 
You can run this monitor on normal video cards with the above specification. You must also 
use a high resolution mode and refresh rate. This monitor will not work in DOS, Safe mode or 
640x480 in low refresh rates without the MIRAGE card.  
 
We recommend that you use your existing system and previous monitor to change the display 
settings to one of the high resolutions mentioned below. Please make sure that you also 
change your monitor type to one which supports higher refresh rates  like the Sony G500 
Multiscan monitor mentioned below. Then switch to 1280x1204 60 hz  mode on your previous 
monitor and make sure that the picture is ok (some small monitors may not be able to run 
high resolution and high refresh rates, so if you could not see a recognizable picture, go back 
to your previous mode). Once the picture is ok, without rebooting and without turning your 
system off, switch the monitors and connect this monitor. You should get a stable picture on 
this monitor now. 
 You may want to go to a different resolutions or higher refresh rates. Windows will switch to 
the new mode and asks you to confirm the new mode within 15 seconds. If you can not see 
the new mode and do not respond within the 15 seconds, the screen will go back to the 
previous mode. 
 

Important Hint:

 When changing resolutions and refresh rates, change one at a time. For 

example to get 1024x768 @85 hz  which we recommend on this monitor, first change to 
1024x768 resolution. Hit Apply, then change the refresh rate to 85 Hz and hit  Apply again. 
 
Try using the following resolutions and refresh rates: 
800x600 @ 100 Hz 
1024x768 @75, 85, 100 Hz  (* recommended mode) 
1124x864 @75, 85, 100 Hz  (* recommended mode) 
1280x1024 @60, 70 Hz 
1600x1200 @60 Hz 
 
 

Summary of Contents for GDM-20D10-15

Page 1: ... PC system using the accompanying cable and video card Please read the documentation provided with the video card for more instructions The above picture looks different from the actual monitor Installation Manual For Sun Sony GDM 20D10 15 Color Monitor Series Please read Entirely Before Installation ...

Page 2: ...ee most resolutions completely adjust the monitor for 1280x1024 so that 640x480 will fill up the screen too H SIZE or Horizontal Size adjustment control This is the monitor s width size adjustment you need to center the screen horizontally first before making this adjustment Sometimes increasing the Horizontal size to the limits may cause the monitor to behave abnormal or the screen may become sha...

Page 3: ... make sure that you also change your monitor type to one which supports higher refresh rates like the Sony G500 Multiscan monitor mentioned below Then switch to 1280x1204 60 hz mode on your previous monitor and make sure that the picture is ok some small monitors may not be able to run high resolution and high refresh rates so if you could not see a recognizable picture go back to your previous mo...

Page 4: ...to connect the tube masks together and this is not a monitor defect For further Information please contact www sony com Monitor Labels and handling ü Please take extra caution when lifting this monitor Normally we recommend 2 people to carry a 19 20 or higher size monitor as this monitor weighs over 70 lbs ü In some cases the serial and front Logo of this monitor may have been removed replaced by ...

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