CPS PCB in Jamma cab confusion... HELP!

[TapeWurm]

Hello!
I recently aquired a Last Duel cab which works great. It's a vertical shooter that isn't that great of a game, but it was a well-spent $50 all the same.
Anyway, It's a Jamma cab and I'm looking to replace the PCB to a better game. I'm wanting to put a PCB of MERCS in the cab, since that game is awesome. MERCS is a Capcom CPS game so do I have to have some kind of CPS motherboard or something before it would work? Or does it simply plug into the Jamma slot and it's good to go? Also, does this apply to CPS 2 games as well?
Thanks to anyone that can help. This is my first cab and I'm pretty new to this aspect of it.
Thanks again!

[paigeoliver]

Capcom CPS games are jamma, although SOME of them have an extra connector (for the third player, or for the kick buttons on the fighters).

CPS 1 games are usually sold complete (motherboard and rom board together), while CPS II games are usually sold motherboard only or cartridge only.

Reason being is that CPS I games came with the CPS motherboard in every kit, while CPS 2 games were available either way, and thus many ops just ordered the cheaper no motherboard kit when upgrading to the latest model.

CPS I games are actually getting pretty darn scarce due to suicide batteries.

[TapeWurm]

Capcom CPS games are jamma, although SOME of them have an extra connector (for the third player, or for the kick buttons on the fighters).

CPS 1 games are usually sold complete (motherboard and rom board together), while CPS II games are usually sold motherboard only or cartridge only.

Reason being is that CPS I games came with the CPS motherboard in every kit, while CPS 2 games were available either way, and thus many ops just ordered the cheaper no motherboard kit when upgrading to the latest model.

CPS I games are actually getting pretty darn scarce due to suicide batteries.

I have heard this term before but didn't know what it was. Do you know of a reference that can tell me if MERCS had a suicide battery? If it does, how do you go about replacing a dead one? Thanks for the help!

[paigeoliver]

It looks like Mercs didn't have one. And fixing a dead battery CPS board yourself requires an eprom burner and a replacement chip or two or three.

[TapeWurm]

It looks like Mercs didn't have one. And fixing a dead battery CPS board yourself requires an eprom burner and a replacement chip or two or three.

Great! Last question now. When replacing a Jamma PCB, is all that's involved, generally, unplugging the old PCB from the Jamma slot and plugging in the new one? I've searched on these topics before but I'm not a good searcher. I'm sure there posted somewhere here, but as slow as I am, your answers are much quicker! Thanks again.

[Rocky]

Yes, to change JAMMA games all you have to do is unplug the old PCB and plug in the new one and the game will work.  (you might need to tweak the power supply knob to get the 5v right )

The only other things you have to "match" are controls and monitor orientation.

Rocky

[paigeoliver]

You also often need to readjust the monitor for the new PCB. Don't bother if you are just tossing the board in to play a few rounds, but certainly adjust it if it is a long term swap.