Hi everyone! First post here!

I recently bought a bundle of Jamma boards, with those came a MegaPlay with 3 carts and a System Multi 32(huge beast!).

Can anyone give me any aditional information or manuals for these PCB's?
The MegaPlay has about 9 sets of conectors which I have no idea what they are for!
The MegaTech used a 2nd monitor, does the MegaPlay also use one?

The MegaPlay board worked fine when I first tried it but after I swaped the cart order it stopped working! It powers on but doesnt boot the game, the screen just stays black.
If I remove all carts I get to some sort of BIOS screen which says 'insert cart'... Any ideas?


About the System Multi 32, can I run it with just one Jamma harness conected or do I need to connect both at once for it to work?
Also, what are those optical terminals and that weird port between the jamma harnesses for?

I hope you guys can help me out...