What would I do if I don't have a Jamma setup? All I've got is a monitor in an empty cabinet. Should I buy a Jamma board?
Hi jmcginley,
The first thing you have to figure out is the type of connection your monitor is using. Most standard arcade monitors have an RGB cable going into its chassis, that ends on a jamma harness on the other side. But some "modern" arcade monitors have a normal VGA connector. The j-pac is only meant to interface the first ones. For VGA monitors you don't need any interface.
As for the DVI adapter, is simply a passthrough dongle that allows connecting an VGA cable to the DVI output on your video card. Once you have that VGA cable going out from your card, you plug it either in the j-pac or in the actual monitor, depending on the case.