Jamma Game Switching Via Pushbuttons

[testicle187]

I have a Mortal Kombat 2 dedicated cabinet with boards for UMK3 and MK4.  Currently I have sliding wooden boards that I slide in place with the jamma boards attached.  I unplug one and plug in the other to switch.  I was looking through Ebay when I saw this link.

http://tinyurl.com/yt3y99

The seller says you change from MK3 to MK4 by pressing both start buttons together.  How could I go about doing this, and what is that board that sits between the jamma boards, a splitter?  Is there a tutorial floating around somewhere for doing something like this?

[andiamo-racing]

Here you go

http://www.arcademvs.com/ARCADE_ACESSERIOR.htm

[CheffoJeffo]

Now I hadn't seen Yaton's version before ... very nice price!

Based on the description in the auction, I would bet that it is one of Mike's Double Jamma boards:

http://www.mikesarcade.com/cgi-bin/store.pl?action=search&category=JAMMA+Adapters

Another, pricier and harder to find option is Clay's MultiJAMMA kit:

http://www.multigame.com/jamma.html

There are other options out there, but I haven't found a source for them other than eBay.

Cheers.

[testicle187]

Thanks guys those seem like they are exactly what I need.  Do I need two power supplies for those?  I was reading on the Clay's Multi-Jamma and it said you need two to four power supplies since it runs your games all at once.  Would one power supply run MK2, MK3, and MK4 at once?

[CheffoJeffo]

Thanks guys those seem like they are exactly what I need.  Do I need two power supplies for those?  I was reading on the Clay's Multi-Jamma and it said you need two to four power supplies since it runs your games all at once.  Would one power supply run MK2, MK3, and MK4 at once?

Without pulling out the manual, I don't recall the exact instructions, but I run three board on my MultiJamma with a basic switcher and supplemental AT power supply. If I had it to do over again, I would probably have used 2 normal arcade switchers instead of the more convenient AT, so that every board would have -5v available.