Topic: Vga Cable Colour. (Read 103 times)

jcdenton2003 · « **on:** October 31, 2006, 09:11:00 AM »

Hey im posting this for a friend. He has a vga cable thats been cut in the middle, he want to make a vga cable but doesnt want to have to rip appart the vga end to see what goes where and wonders if you can tell just bu the colour?? here they are

3 x armored cables pinky red, blue and white
4 x smaller cables black, brown, yellow orange.

Please help! thanks.

FrostyTheSnowman · « **Reply #1 on:** October 31, 2006, 09:30:00 AM »

VGA cables really don't follow a coloring standard. His best bet is to use a multimeter with a continuity tester to find out which wire goes to which pin.

Here's a pinout, it might come in handy. (IMG:style_emoticons/default/biggrin.gif)

http://www.diyha.co.uk/electronics/vga.html

This post has been edited by FrostyTheSnowman: Oct 31 2006, 05:30 PM

rogerlike · « **Reply #2 on:** October 31, 2006, 10:12:00 AM »

If you look at the pinout you'll see the only signals to get their own independent grounds are the R G and B signals. Therefore one can reasonably assume the three shielded cables are the R G and B signals. You can harmlessly mix+match those with the HDTV Y Pr Pb signals from the xbox which will carry R G and B while using the VGA bios hack (with the xbox-connector end jumpered to output HDTV. Componenent cables will be setup like this already. SCART and others are likely to need changing). From memory I'm not sure which YPbPr signal corresponds to which RGB signal but when you get it right, the colours will look right (IMG:style_emoticons/default/smile.gif) However, you can buy multimeters very cheap these days and they are extremely useful to have around.

BTW Frosty, Like many have already said - Thanks for all your work. I've been frustrated in not being able to find a vga transcoder in stock for a reasonable price anywhere and came across your hack yesterday. A couple hours later: bios hacked, cable made, 720p looking sweet on my LCD (IMG:style_emoticons/default/biggrin.gif) You deserve a big hug.

This post has been edited by rogerlike: Oct 31 2006, 06:27 PM

FrostyTheSnowman · « **Reply #3 on:** October 31, 2006, 11:03:00 AM »

QUOTE(rogerlike @ Oct 31 2006, 09:43 AM)

BTW Frosty, Like many have already said - Thanks for all your work. I've been frustrated in not being able to find a vga transcoder in stock for a reasonable price anywhere and came across your hack yesterday. A couple hours later: bios hacked, cable made, 720p looking sweet on my LCD (IMG:style_emoticons/default/biggrin.gif) You deserve a big hug.

Glad to hear that you got it working. It's always nice to hear that my patch is working for everyone that uses it. (IMG:style_emoticons/default/happy.gif)

jcdenton2003 · « **Reply #4 on:** November 01, 2006, 03:13:00 AM »

hey, Couldnt be arsed to get a multimeter so i just used a 12v battery and a LED. Heres what iv found.

armored cables:
pink cable - pin1 - red vid in
white cable - pin2 - Green vid in
blue cable - pin3 - blue vid in

Thinner cables:
Black cable - pin10 - ground
Orange cable - pin15 -

Yellow cable - pin14 - Vertical sync
white cable - pin13 - Horizontal sync
Brown cable - pin12 - ID1 ??

My question is could i connect all the video grounds (RGB) to the black pin 10 ground and it work? Cheers frosty you rule man!

jcdenton2003 · « **Reply #5 on:** November 01, 2006, 04:10:00 AM »

Just did a little test by powering a led from the video grounds off the shelding if you get me? so there all already grounded in there. which pin should i connect the shielding to on the xbox side?

FrostyTheSnowman · « **Reply #6 on:** November 01, 2006, 07:07:00 AM »

Technically, the grounds can all safely connect to the same ground point without harming anything. As far as grounding on the XBOX goes though, just ground it to the XBOX A/V connector's shell.

Author Topic: Vga Cable Colour. (Read 103 times)