Cheapest PC to JAMMA cabinet option

[bimm25e]

So I want to help my little brother out and put a PC in his Martial Champion cabinet,  I'm not so concerned with having the Martial Champion PCB still playable as it is a pretty ---smurfy--- game and can be emulated without much effort.



What I need is a way to interface the cabinet buttons to the PC and a way to get the VGA signal from the PC on the screen.   I already have a PC setup for hyperspin and a pcb-less JAMMA cabinet.

 I was hoping to avoid a method that uses soft 15khz, preferably I'd like to use a VGA converter that will scale any output to 640X480 interlaced, to avoid the risk of a 60Hz windows bootup screen frying his CRT chassis.

I am eyeing this -> http://www.ebay.com/itm/J-PAC-PCB-USB-VGA-CABLE-INCLUDED-CONNECT-A-PC-TO-YOUR-JAMMA-CABINET-JPAC-/271078768669?pt=UK_Video_Games_Coin_Operated_MJ&hash=item3f1d8dc01d

But will this handle the VGA -> CGA resolution step-down?  Or will I still need soft15KHZ?

[pbj]

But will this handle the VGA -> CGA resolution step-down? 

Nope.

[mgb]

This will do vga to cga
http://www.paradisearcadeshop.com/video-converters-and-tools/54-yuv-vga-to-cga-converter-gbs-8150.html

[offset]

I'm using the GBS 8100 converter, not sure differences with GBS 8150, maybe outputs?

Bought mine from here - http://www.jammaboards.com/store/vga-to-cga-pal-ntsc-video-converter-pcb-gbs8100.html