What else do I need? Jammu conversion

[92greenyj]

Hey guys. Haven't been on in a while. Not sure where else to put this and need some input pretty fast so I tout I'd get the most views here.

I run an arcade and currently have a showcase cabinet set up with a Naomi unit with a Marvel Vs. Capcom 2 game cartridge. About a week ago I started getting error 02 on start up. Saying it could not read the cartridge. Tried the usual stuff. Remove and reseat the cart, clean the contacts, dust, etc. all to no avail. It's been doing ok but not great. My thought is the cart itself is bad and none of my parts suppliers can get me one.

So what I would like to do is yank the Naomi console out and switch it over to this

http://www.jammaboards.com/store/capcom-cps-ii-18-in-1-multigame-jamma-pcb/prod_292.html?ccSID285e73f64c04744fc5f33ff68f529742=fbdf6206506d86f43091a0b135b1c3d3

A Capcom 18 in 1 Multigame Jamma PCB

Finally a multigame PCB for the arcade purist! This CAPCOM CPS-II 18-in-1 Multigame JAMMA PCB actually runs many popular CAPCOM games on original CAPCOM CPS-II hardware. So unlike all other multigame PCBs, this CAPCOM 18-in-1 PCB uses NO EMULATION! Running on original CPS-II hardware so every game plays exactly true to the arcade version because it is the exact arcade version. Games are selected via an OSD (On Screen Display) super easy to use interface.

CAPCOM CPS-II 18-in-1 Games List

1   Giga Wing
2   Rock man 2 : The Power Fighters
3   Marvel vs. Capcom: Clash of Super Heroes
4   Ring of Destruction : Slam Masters II
5   Super Puzzle Fighter II X
6   Hyper Street Fighter II : The Anniversary
7   Street Fighter Alpha: Warrior's Dreams
8   Street Fighter Zero 2
9   Street Fighter Alpha 3
10   Vampire Savior: The Lord of Vampire
11   Dark Stalkers : The Night Warriors
12   Night Warriors : Darkstalker's Revenge
13   X-Men : Children of the Atom
14   X-Men vs. Street Fighter
15   Dungeons & Dragons II : Shadow Over Mystara
16   Dungeons & Dragons : Tower of Doom
17   Alien vs. Predator
18   Battle Circuit


My question is will I need any other parts to swap this in in place of the Naomi unit currently in the game? Jamma harness, adapters, etc or can I just unplug the Naomi unit and plug this in in it's place?

[Thenasty]

If the NAOMI is JAMMA and the Monitor is 15khz, then its just plug n play.

JAMMA is JAMMA

[Franco B]

Naomi is JVS, not JAMMA.

If your cab is wired for JVS you would need a JAMMA>JVS adapter like the Namco or Konami ones. Avoid the River Service one as its laggy.

Naomis native output is 31kHz although it can output at 15kHz via a dipswitch on the mobo. If your cabinet is an original cabinet then I imagine it will be have a 31kHz only monitor in if, you could be VERY lucky and find it has a tri/quad/-sync in it.

If it does have a 31kHz only monitor in it you would need a video upscaler to run that board but the end result generally isn't very good.

TBH if you run an arcade you probably have access to other machines that you could run the 18-1 in, that is if you don't mind profiteering off bootleg boards

Have you checked the voltages under load at the Naomi mobo? They can be quite voltage sensitive.

I would check your voltages for a start and if that doesn't work I would swap it out for working cart. At least then you will know if its a cart or mobo problem.

[emphatic]

Have you checked the voltages under load at the Naomi mobo? They can be quite voltage sensitive.

^^This.

[CheffoJeffo]

I agree with everything Franco said.

Having said that, I picked up a NAOMI system at auction where the cab was wired JAMMA and the monitor was 15Khz (NOTE: I don't believe JAMMA specifies monitor freq, so "JAMMA" is NOT JAMMA).

perhaps a pic of the wiring (to see if there is a JVS to JAMMA converter there already) and the monitor might let us give you more options, although I would do as Franco suggests first. Checking voltage is always step 1.

[92greenyj]

OK, Here are some pics of what is currently in the cabinet. Pretty sure it was a generic showcase cab that the company I bought it from put a monitor and guts into. (the distributor is no longer in business) I looked but did not see much info if any on the monitor or its specs. Though honestly the color is pretty faded anyway and its probably about due to be replaced.










I really need to do something with this cabinet as its not making us any money sitting on the floor turned off right now. I greatly appreciate any and all input on this. As i said, none of my suppliers have been able to locate a new cart for the NAOMI unit. the few that have turned up don't work. which does not help me obviously. Any other suggestions on conversion kits I could slap into this thing?

[92greenyj]

bump.

Any input?

[BobA]

How about a picture of the back of the monitor showing any labels that are readable so the guys can determine if you have a standard monitor or 31 khz.  Does the large connector on the silver box go directly to your CP and coin door?

[Franco B]

The long silver box is a Capcom IO. It's used to run Naomi/JVS on JAMMA setups so that means your cabinet is JAMMA wired which helps. You can see the JAMMA edge connector plugged into the side of it.

The Capcom IO doesn't downscale the video I'm guessing the Naomi is set to output at 15kHz. If you look near the 'USB' cable coming out of the Naomi you should see some DIPs. If DIP 1 is ON then it's set to output at 15kHz, if it's OFF then it's set to output at 31kHz.

If it is set to OFF (31kHz) then it must either be connected to a 31kHz/tri/quad sync monitor via the black VGA cable or there must either be a down scaler in between the Naomi and the monitor.

I'm guessing that it will be set to 15kHz though. If that is the case you should be able to unplug the Capcom IO and plug your JAMMA board in. I would recommend checking the voltages before you do though.