Sega Naomi questions.

CheapNeoGeo · Dec 15, 2003

I have been looking into getting a Naomi system, but before I buy one I have a few questions.

1. What monitor res. is it?
2. What is needed to run cart games?
3. What is needed to run GD rom games?
4. Which is better and why cart or GD rom games?
5. What are the power supply requirements? (voltages and amps)
6. Is it JAMMA compatable?

Thanks for any info.

apus · Dec 15, 2003

1. Dunno about the resolution but the frequency is 15,2khz or 31khz (switchable).
2. NAOMI Motherboard
3. NAOMI-1 with later BIOS / NAOMI-2
4. Some games only as cart / GD
5. 5V, 12V, 3,3V . Power? Maybe about 3-4A, dunno for sure
6. Yes, with I/O Board (optional item)

Get all info you can aquire before buying one!

Riipps · Dec 15, 2003

The res is switchable between low and high but not meduim.
It is not JAMMA standard, it needs a JAMMA I/O board or even better a Capcom power converter. Voltages needed are 3.3v 5v and 12v so a standard arcade PSU can't provide the 3.3v so either a special one is needed or the original Sega Naomi PSU or again even better the Capcom power converter as this will run of the standard arcade psu and convert the 3.3v needed.
Check out http://www.illinoisgames.com/index2
For even more info
Paul

Pingu · Dec 16, 2003

Bah, the only thing you need is a PC PSU. It has enough juice and often they have a +3.3 and +5v sense that automaticly adjust the output to the correct output. It's an easy task to convert one of these or if your stingy you could just get the female atx connector and wire it from there. Most games won't start without a i/o board though. The NAOMI uses the JVS standard, perhaps any jvs compatible I/O board can be used.

neo-geo 2 · Dec 16, 2003

Pingu said:
Most games won't start without a i/o board though. The NAOMI uses the JVS standard, perhaps any jvs compatible I/O board can be used.

What?

All games need an I/O board to play in a Jamma cab.

You can only use the Capcom or Sega I/O, nothing else will work

Amano Jacu · Dec 16, 2003

There's something I don't understand here... Do you mean that some games MUST be played using an I/O board, even if you don't want to use a JAMMA cab?

From what I understand, the I/O is almost mandatory anyway if you have a JAMMA cab, but if somebody wanted to use the board at home, I think he could pass without it. Just use a PC monitor, a PC PSU, DC controllers (using that trick), and there you go, unless there's something else... Now that I think of it, what about sound?

neo-geo 2 · Dec 16, 2003

Amano Jacu said:
There's something I don't understand here... Do you mean that some games MUST be played using an I/O board, even if you don't want to use a JAMMA cab?

From what I understand, the I/O is almost mandatory anyway if you have a JAMMA cab, but if somebody wanted to use the board at home, I think he could pass without it. Just use a PC monitor, a PC PSU, DC controllers (using that trick), and there you go, unless there's something else... Now that I think of it, what about sound?

You would need a stereo system or an audio amp for sound.

Not all games will work with the "trick"

Amano Jacu · Dec 16, 2003

Yeah, but where would you connect the sound in the board? I mean, is there a standar connector or a custom one?

About the controller "trick", I guess all the games that use regular digital inputs (4 way joystick, and some buttons) would work. Of course games that need special devices like steering wheels wouldn't, but for that type of game you need something special anyway. When playing at home without a cab, you can only expect to use regular games with digital inputs.

neo-geo 2 · Dec 16, 2003

Audio:

Amano Jacu · Dec 16, 2003

OK, this image is better than 1000 words.

KMGor · Dec 16, 2003

Wow, it has standard phono audio and VGA out. "Consolizing" one of these would just require buying a VGA-to-whatever converter and making a case and controllers. Has that ever been attempted? I'd be surprised if it hadn't, it looks to be easy and cheap to do (Naomi boards can be had for $200 now, after all).

Amano Jacu · Dec 16, 2003

KMGor said:
"Consolizing" one of these would just require buying a VGA-to-whatever

What would this "whatever" thing be? Obviously the cheapest, easiest and with best image results at home would be a regular VGA computer monitor. If you wanted to use your regular TV you would need some type of convertor and it would cost a lot and only work in low res.

About controllers, as we said there is a trick to use Dreamcast controllers, but it may not work in all games (of course it would be necessary that the game uses only standar controller inputs).

Yes, I also think attempting this is more than possible for a home user. I might try it myself, but well, having a Dreamcast there's almost no need. And the Naomis still cost some bucks and are hard to find in Europe (well, most likely I would import one from USA). We'll see in the future, just for the fun of completing such a project.

neo-geo 2 · Dec 16, 2003

Yea, there really isnt a "Need" for a Naomi home setup, its called a Dreamcast. All the games are on it, they cost less, look almost identical, and are 100% compadable with all Dreamcast games.

Amano Jacu · Dec 16, 2003

Just wondering about controllers, I consulted your site and I couldn't find that DC->Naomi controller trick. Is it linked there? Instead, it is mentioned several times that the controls are USB. Are there actual USB ports? What do you mean by "A USB adapter will still have to be purchased for your controls."?

Yeah, the consolized naomi is the DC and that's all. But as I said I might do it just for fun as a hobby in the future, when the naomi and games are dirt cheap, just like the MVS is now. I still think the Naomi games should look much better in a VGA monitor than their DC counterparts in the TV (wait, I also have a vga box for the DC :loco:

).

After all, we could also argue it's silly to own a Neo or any arcade game being emulators available, but there's a "special feeling" using the true hardware.

neo-geo 2 · Dec 16, 2003

Yep, its an actual USB port, look in the pic in the top left corner.

I made an adaptor for using DC controllers on naomi so you dont have to sacrifice your DC controllers. Im selling them for $20

X-Arcade with USB cord should be able to work, I dont have a USB cable to test it with.

KMGor · Dec 16, 2003

neo-geo 2 said:
Yea, there really isnt a "Need" for a Naomi home setup, its called a Dreamcast. All the games are on it, they cost less, look almost identical, and are 100% compadable with all Dreamcast games.

Yeah, I know, I have a DC with close to 100 games (and probably 20 or 30 are Naomi conversions).

There are VGA-to-SVideo converters, they don't cost too much.. Don't know how good the quality is though.

NEOFREAK9189 · Dec 16, 2003

I have for $$$ sale VGA-to-SVideo and rgb converter
anyone wanted to buy :drool:

Amano Jacu · Dec 17, 2003

neo-geo 2 said:
Yep, its an actual USB port, look in the pic in the top left corner.

I made an adaptor for using DC controllers on naomi so you dont have to sacrifice your DC controllers. Im selling them for $20

X-Arcade with USB cord should be able to work, I dont have a USB cable to test it with.

I found the thread with info about consolizing a Naomi:

http://www.neo-geo.com/forums/showthread.php?s=&threadid=69169

with the pic about DC controllers:

I was asking about the USB thing because in the pic, the controllers are attached to that CN6 and CN7 connectors. But it looks like it only works with games that were actually designed to have the possibility to be played with a DC controller like this:

so it's no wonder why it is so straight-forward to directly hook DC controllers to the board in the games that accept it.

However, as can be seen in the Naomi connectors pic there are USB ports that should be used for controllers. So it is possible to construct an adaptor with a usb plug and a DC plug to use DC controllers there? Is that straight-forward, just connecting each wire with the correspondant one?

KMGor · Dec 17, 2003

Woh, some Japanese Naomi machines have built in DC controller ports? I'd feel really dorky bringing my controller to the arcades, but maybe that's just me.

neo-geo 2 · Dec 17, 2003

KMGor said:
Woh, some Japanese Naomi machines have built in DC controller ports? I'd feel really dorky bringing my controller to the arcades, but maybe that's just me.

You bring your controller and memory card into the arcade, and you can use your char. saved on the memory card and play them in the arcade.

Im working on a USB Adaptor right now, thinking it will be hard

KMGor · Dec 17, 2003

neo-geo 2 said:
You bring your controller and memory card into the arcade, and you can use your char. saved on the memory card and play them in the arcade.

Im working on a USB Adaptor right now, thinking it will be hard

Yeah, I knew some of them took VMUs, but the whole controller? WHY? When I'm going to the arcade, I want to use an arcade stick... But that's just me I guess.

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