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analog vga connector

Forum Graphic & Displays : Graphics Cards - analog vga connector

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arisgr0   09-25-2007 at 02:20:22 AM

Hello all.
All engineers out there,can you answer me please?
If you want to take a graphic card and make it giving NO analog signal to a monitor (black screen) without damaging the rest PCB circuit, what should you do?
Which pin(s) should you cut off or short wire of the 15-analog output?
Take a look at this link:
http://www.epanorama.net/documents/pc/vga_bd15.html

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MagicPants   09-25-2007 at 03:21:41 AM
- 0 +

Umm unplug it? What are you trying to do?

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arisgr0   09-25-2007 at 03:56:35 AM
- 0 +

Ok i mean although that the monitor is plugged in, no signal(or false) is given.
Any thoughts?

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JMecc   09-25-2007 at 05:36:40 AM
- 0 +

I'm with MagicPants - what is it you are trying to accomplish?
Jo

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BustedSony   09-25-2007 at 06:54:41 AM
- 0 +

The OP is referring to the 3-pin monitor ID on the original VGA connector, predating DDC standard two-way communication. He wants the card to think no monitor is connected thus using whatever is the default or Basic mode.

4 11 12
ID2 ID0 ID1
n/c n/c n/c no monitor
n/c n/c GND Mono monitor which does not support 1024x768
n/c GND n/c Color monitor which does not support 1024x768
GND GND n/c Color monitor which supports 1024x768

It seems to me 4, 11, and 12 would all have to be removed.

Message quoted 1 times
Reply to BustedSony
arisgr0   09-25-2007 at 01:34:38 PM
- 0 +

I think i should remove the 3 colors:1-2-3 or 6-7-8 pins
What do you think?

Reply to arisgr0
rodney_ws   09-25-2007 at 02:36:16 PM
- 0 +

BustedSony wrote :

The OP is referring to the 3-pin monitor ID on the original VGA connector, predating DDC standard two-way communication. He wants the card to think no monitor is connected thus using whatever is the default or Basic mode.

4 11 12
ID2 ID0 ID1
n/c n/c n/c no monitor
n/c n/c GND Mono monitor which does not support 1024x768
n/c GND n/c Color monitor which does not support 1024x768
GND GND n/c Color monitor which supports 1024x768

It seems to me 4, 11, and 12 would all have to be removed.


It's posts like this one that remind me we got some people that really seem to know their sheeeeot.

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