jamma conversion help

[dan57fina]

I'm helping a friend convert a jamma cab into a mame machine....hes looking at the ultimarc j-pac and everything seems great but before he bought it we found this....

IMPORTANT: The J-PAC does not convert or process the video signal in any way except amplify it to the level required by an arcade monitor. The sync frequency jumpers only control the sync-in-range safety check. The PC must be configured to send the correct sync frequency for the monitor unless our ArcadeVGA card is being used.


is there any way for someone to explain to me how to convert that signal withought using the ArcadeVGA card?

any help would be greatly appriciated...

-Dan

[AlanS17]

Do research on a program called Power Strip. It's made by a company called EnTech. It'll let you tweak your video card in Windows. It can't unlock hidden capabilities of a card, but it can't make a card exceed its own limitations.

I'll let you do the research on how to use it, though. It's a long drawn out process that I'm too tired to explain. Basically, you tune your video card to output a signal compatible with an arcade monitor. Here's a point in the right direction, though. Arcade monitors are basically TV's without tuners.

[krick]

You should check out the EasyMameCab site, especially this page...

http://easymamecab.mameworld.net/html/hardware.htm