9 pin video

Electronics Computer Programming Q&A
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yusha
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9 pin video

Post by yusha » Wed Feb 11, 2009 8:44 am

I have a engraver with a built in computer which has a 9 pin video output.Can anyone tell me what I need to run vga monitor with a 15 pin cable from that output?Can it be done?I cant add a video card and I cant find a Mono or ega monitor.Thanks

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Janitor Tzap
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Re: 9 pin video

Post by Janitor Tzap » Wed Feb 11, 2009 12:13 pm

That sounds like you need an old mono-chrome monitor, or CGA Monitor.

But since VGA monitor's are in great abundance.
You should get a CGA-to-VGA adapter.
Here's one store that carries it.
http://store.cwc-group.com/cgavga.html

You can check other places like Jameco, or Egghead for this adapter.
Or maybe one of your local computer dealers has these.


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Bigglez
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Re: 9 pin video

Post by Bigglez » Wed Feb 11, 2009 4:19 pm

yusha wrote:Can anyone tell me what I need to run vga monitor with a 15 pin cable from that output?Can it be done?I cant add a video card and I cant find a Mono or ega monitor.
Intersting problem. In the early days of small/personal computers
IBM standards were adopted and then hacked as others entered
the market.

While there are adapter cable assemblies with 9 pin and 15 pin
'D' connectors, care is needed with scan rates and sync polarity.
Early monitors were closely related to TV sets, while later ones
for computers used higher scan rates.

I'd just buy a cable and try it out with monitors you can find
on the surplus market, hoping to hit a combination you can
use without having to fiddle with internal circuitry.

Here's the industry definitions of both the 9pin and 15pin
video ports from around the mid-1980s:

VGA=Video Graphics adapter or Video Graphics Array. Videotype: Analogue.

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Pin  Name   Description 
1    RED    Red    Video 
2    GREEN  Green  Video 
3    BLUE   Blue   Video 
4    HSYNC  Hor    Sync 
5    VSYNC  Ver    Sync 
6    RGND   Red    Ground 
7    GGND   Green  Ground 
8    BGND   Blue   Ground 
9    SGND   Sync   Ground
VGA connector pinout:
The new forum software generates a window with scroll bar on the right --->

Code: Select all

Pin  Name   Description 
1    RED    Red Video (75 ohm, 0.7 V p-p) 
2    GREEN  Green Video (75 ohm, 0.7 V p-p) 
3    BLUE   Blue Video (75 ohm, 0.7 V p-p) 
4    ID2    Monitor ID Bit 2 
5    GND    Ground 
6    RGND   Red Ground 
7    GGND   Green Ground 
8    BGND   Blue Ground 
9    KEY - Key (No pin) 
10   SGND   Sync Ground 
11   ID0            Monitor ID Bit 0 
12   ID1 or SDA     Monitor ID Bit 1 
13   HSYNC or CSYNC Horizontal Sync (or Composite Sync) 
14   VSYNC          Vertical Sync 
15   ID3 or SCL     Monitor ID Bit 3

beatriziya
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Re: 9 pin video

Post by beatriziya » Thu Jul 30, 2009 3:19 am

How can I connect the 2 phono feeds from my Xbox 360 to my headphones using the VGA connection? I have connected my Xbox 360 to my PC monitor using the official VGA cable. Unfortunately, the monitor does not have built in speakers or an audio in line, so I can't get any music.

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reloadron
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Re: 9 pin video

Post by reloadron » Thu Jul 30, 2009 9:32 am

THIS LINK will get you to where you can see the pinout of your X Box. Note where the audio is. That may help you. Overall the entire project looks to be a solution for you.

For future refrence, sometimes it is best to start a new thread with a question rather than resurect an old thread with a new question.

Ron

surujaa
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Re: 9 pin video

Post by surujaa » Sun Jan 23, 2011 11:52 pm

How can I fabricate myself a VGA cable to Composite? I don't want to buy anything; but first of all is it possible to make that cable? VGA to Composite? I have the VGA that I cut on 1 end did the same with the composite. Now, I need to make it work from my PC to TV. Pls, let me know what are the colors to match.

ltx71cm
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Re: 9 pin video

Post by ltx71cm » Mon Jan 24, 2011 7:52 am

surujaa wrote:How can I fabricate myself a VGA cable to Composite? I don't want to buy anything; but first of all is it possible to make that cable? VGA to Composite? I have the VGA that I cut on 1 end did the same with the composite. Now, I need to make it work from my PC to TV. Pls, let me know what are the colors to match.
Will absolutely not work without "having to buy something", sorry.

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