Re: Need some clarification on a couple boards in my cabinet. . .

Subject:

Comments:
: One thing I should really mention. Since you won't be using the power supply in the cabinet while the JAMMA connector is unplugged from the MK2 board (it's not used for powering the PC in any way), you should also disconnect the power supply. Leaving it on with no board plugged into it will burn it out within a few hours. : : That little board you're talking about is a ROM board. If you disconnect it, it will stop MK2 from working, but that's not what you want to do. Cabinets don't come with fingerboards. You'll need to buy a fingerboard from somewhere. You'll then want to disconnect the JAMMA connector from the main MK2 board (this will stop MK2 from working). You then solder all the proper connections from your PC to the JAMMA fingerboard you bought and plug that into the JAMMA connector that used to be plugged into the MK2 board. Actually, rather than soldering directly onto the fingerboard, it's better to also buy a 56 pin edge connector (same type as the JAMMA connecter that's there already), solder onto that, then use the fingerboard to join the JAMMA connector and the edge connector. : : Tim : : : The main cpu board has another board less than half : : : its size ontop of it and connected by (guessing here) : : : about 60 pins(about 30 on top[end]and 30 on bottom[end]) : : : What is this smaller board?There are no wires connected : : : to it.I thought this was the game card(mortal kombat2), : : : but I also noticed on the main cpu card, there were : : : mortal kombat2 ??rom chips??(about a dozen or more).To : : : make my Mame cabinet, do I just remove this smaller card : : : from the main board, so that the mortal kombat game : : : doesn't boot?One more question: I am still a little unsure : : : about Jamma fingerboards. I thought every cabinet had : : : one. In my cabinet, I have a Jamma conector that : : : connects to the main board w/ all the wire connections : : : on this connector. Now, where does this Jamma : : : fingerboard come into play? So in the end, do you use : : : the Jamma fingerboard inplace of the Jamma conector? : : : Does it also mean that you take everything you want : : : to use off the Jamma connector, and solder it to : : : the fingerboard?Finally, is the main board no longer : : : used when using the Jamma fingerboard?Man, I'm : : : getting dizzy:> If any one can help w/ these, : : : I'll be that much closer to making my cabinet : : : work!Thanks guys

Optional Link URL:
Link Title:
Optional Image URL: