There are 5 BNCs because they are all needed depending on what you want to achieve. RGB has to have sync, it can be on green but not from an xbox. It can be on composite, which my mod offers, or it can come from 5 wires. In the wire hook up the sync stripper is providing the H and V for projectors and plasmas that have that specific o/p. The BNCs are labelled with both RGB and Y/YPb/YPr. Of course Y/YPb/YPr does not use H and V.
Gerzand, nice one mate for getting it to work. I am figuring that taking a sync feed from Green does not work so I am going to taking from composite and split that before asking you what you did, just to see if I can work it out. Yeah I did use the AVIP pin #1 to get Vcc and then a PCB ground.
Am gunna check out your post too.
entermymatrix03 thanks dude. Looks like a lot of people can have a go at this sort of mod with all the help coming in, which is great.