Sega-Naomi

Hi,



I'm new owner of a Sega Net City cab, I'm fairly new how everything works inside a cab. I have found lots of useful information here and kinda of have the theory down.



But when I open the cab and saw all these cables running up and down I felt bit overwhelm but took it as a challenge.



I have a Naomi1 and Naomi 2 system with a GD-Rom and Capcom I/O. I want to hook up my Naomi 2 + GD-rom to play Capcom VS Snk 2 and other fighting games. Especially since the DIMM board on my Naomi 2 is v3.17 needed to play VF4FT.



From what I read I need a second power supply to power up the GD-Rom drive? Since the Capcom I/O can not power everything up.



The power supply that came with the cab is a SUN 400-5397-01.



Any information is appreciated.



Thanks,



Here are some pics I took with my camera phone I will take better pics on the weekend.

Since you have the SUN psu, you will not be needing a second power supply. If it's not already included in the wiring you have, you will need a power splitter for the GD drive. The 2 large white connectors shown in the second picture are from the psu. Your cab does not look like a standard Jamma system, so I would imagine that there is an I/O already present. See what is connected to the other side of the USB cable inside the cab. If there is an I/O, it would be located underneath the control panel.

joshua3dg wrote:Since you have the SUN psu, you will not be needing a second power supply. If it's not already included in the wiring you have, you will need a power splitter for the GD drive. The 2 large white connectors shown in the second picture are from the psu. Your cab does not look like a standard Jamma system, so I would imagine that there is an I/O already present. See what is connected to the other side of the USB cable inside the cab. If there is an I/O, it would be located underneath the control panel.

I believe i have a power splitter in one of my boxes. Also I see the I/O just underneath the monitor.



I'm going to head out and buy a multimeter and a tamper proof wrench.



thanks for the info, going to try to get the cab running today.

I took a pic of the IO board its using. Also I manage to get hook up my naomi system + GD-Rom and ran CVS2 with no problems.



I still nee to connect my Capcom I/O, but still not sure how to do that.



Also try to run my CVS1 game and had a couple of bad results running the ROM Test. So i was wondering if its worth fixing or just buy another one?

vq35max wrote:I took a pic of the IO board its using. I still nee to connect my Capcom I/O, but still not sure how to do that.

You do not need the Capcom I/O. The I/O in the first photo handles everything. Your cab is wired for JVS.



If the cab was wired for JAMMA, you would need the Capcom I/O. In this case, you can either keep it in storage for future use (on another JAMMA cab), or sell it on this forum. They are worth quite a bit of money

By the way: a couple of ROMs test BAD in your screenshot. Unsure what is going on, but doublecheck your voltages for safety (5V and 3.3V, measure these at the Naomi).

Cageman wrote:You do not need the Capcom I/O. The I/O in the first photo handles everything. Your cab is wired for JVS.

thanks for letting me know, i tried to wire all 6 buttons, but for some reason buttons 4 &5 does not function on the P2. But when I have butons 1,2,3 & 6 down and then press 4 or 5 they work. P1 buttons 4-6 does not function all.



I'm going to order some new buttons just in case, cause i have no other buttons to test.

Cageman wrote:By the way: a couple of ROMs test BAD in your screenshot. Unsure what is going on, but doublecheck your voltages for safety (5V and 3.3V, measure these at the Naomi).

I will re-check the volts again, but my MVC2 game works fine, I tried the CVS1 on 3 different Naomi boards and get the same problem.

I re-checked my voltage again, they were a bit high. But re-adjusted to 5V and 3.3V.



I checked the volts from the amp, once with just the power supply by it self and again connected to the Naomi 1 running a game. Checking through the amp.



I read however the proper way is to check the volts from the board, am I supposed to use the pins that's on the side of the board? The one in the circle?



Also anyone has any input on why my buttons 4-6 are not working properly? 1-3 are working fine on both sides.



I check the settings on the board and its set for 2 players. Only button 6 works on player 2 side. While button 6 is press down, button 4 and 5 will work only on player 2 side. Player 1 side 4-6 does not work at all. I change new buttons and still not working.



thanks for any help i can get.

Voltage can be best measured at the point where they are connected to the Naomi, so on the connectors at the bottom right.



I would not recommend probing the area you circled while the Naomi is running; the risk of shorting two connections is just to great.

Cageman wrote:Voltage can be best measured at the point where they are connected to the Naomi, so on the connectors at the bottom right.



I would not recommend probing the area you circled while the Naomi is running; the risk of shorting two connections is just to great.

thanks, i did not want to touch it since I was not sure about it.



My voltages are correct now. The only problem I still have, are the controls.



I looked in AGS website on how to wire the extra button loom. I followed the directions. My Button 4 White/Orange that's on player 2 side comes out as button 6 during the input test. Since i don't have another extra button loom, I don't know if it's the wire causing the problem.



Is there any other stores in the US that I can purchase this from? I already checked on lizard lick and happcontrols but is not listed on their site. Unless AGS is the only option to obtain it.