HELP with Naomi & JVS I/O type2

[jkl]

Hi,
I need some help.
I can't get Initial D3 running on my Naomi 2 board.
I tried with my old JVS2Jamma board: I can boot but no input is recognized: I can't add credit, start game and so on... can only look at the rolling demo.
Then I tried with the JVS type 2: "I/O board connected to Naomi does not fullfill game spec".
What kind of I/O is it expecting?
BTW both I/O I tried are recognized in test mode, and input test is working well.
Both boards have 100ohm resistor for coin meter spoofing.

Help please!!

PS: Anyone can tell me how the dipswitches on JVS I/O work? Can't find any information even on AGS...

 

[freddiefiasco]

I hope I can answer you but some additional information might be needed. I also hope you figured this out already.

Keep in mind these are strong assumptions because I am not clearly understanding your question but here goes:

First off, you mention JVS I/O Type 2 board. This is on Andy's site as well as SEGA cabinets with Model # 837-13844-02. First thing that comes to mind is that the Type 2 JVS I/O board DOES NOT have any analog I/O controls and has more digital I/O than the Type 1.

You originally say that you can boot but no input is recognized when using JVS2Jamma. Before you get to the NAOMI logo screen, there is usually a message regarding I/O errors.
When you try the JVS type 2 board you get a different error. Is this on screen somewhere? I have never seen that error before. The usual error I get when the JVS I/O has issues (or is not connected) is just a generic one stating "...I/O Error...".

ID3 Twin cabinets come with a JVS I/O board labeled "837-13551-92" Type 1. There are no switches on this particular Model board.

All in all, JVS I/O Type 2 boards won't work with Initial D 3 (Nor 1/2).

Reference Ghost Squad Page 2 (B-3,3-6): http://visionamusement.com/web_documents/Sega/Ghost Squad Deluxe Wiring Diagram.pdf

 

[jkl]

Thanks for your answer, I never had the type 2 working (btw, it does have analog support!) on Naomi, but I purchased a type1 that works flawlessy on it.
I gave my type 2 to a friend who's using it (digital as well as analog inputs) on his Lindbergh.

Many thanks, anyway!

JKL

 

[MetalliC]

by default, with all DIPSW OFF "type 2" (13844) JVS IO have 12 digital inputs (per player), but ID wants them at least 13 like type-1 IO have.
try to switch some DIPs on this IO, if I not mistaken 2nd or 1st+2nd - this will increase switch inputs number.
this is quite advanced and flexible IO btw

 

[gamemaster14]

I read somewhere that the Sega JVS to Jamma board will work but only if you disable 6 button control mode with a jumper on the board, otherwise the game will not boot at all, just go to test.

 

[twistedsymphony]

by default, with all DIPSW OFF "type 2" (13844) JVS IO have 12 digital inputs (per player), but ID wants them at least 13 like type-1 IO have.
try to switch some DIPs on this IO, if I not mistaken 2nd or 1st+2nd - this will increase switch inputs number.
this is quite advanced and flexible IO btw

I was wondering what those dip switches are used for, is there information somewhere that explains all of the different switch settings? I haven't been able to come up with anything.

 

[MetalliC]

I was wondering what those dip switches are used for

for configuring this IO capabilities. there is no docs explaining all DIPSW settings. I've seen only DIPSW 1 mentioned in Sega Marine Fishing docs, it is enable "rotary" inputs.
based on this IO firmware disassembly - the rest can set it's GPIO pins for input or output, change number of players, enable touch screen support (5?), enable printer(s) support, etc.

 

[twistedsymphony]

I was wondering what those dip switches are used for

for configuring this IO capabilities. there is no docs explaining all DIPSW settings. I've seen only DIPSW 1 mentioned in Sega Marine Fishing docs, it is enable "rotary" inputs.based on this IO firmware disassembly - the rest can set it's GPIO pins for input or output, change number of players, enable touch screen support (5?), enable printer(s) support, etc.

wow, that really is a versatile I/O board!

 

[twistedsymphony]

I was wondering what those dip switches are used for

for configuring this IO capabilities. there is no docs explaining all DIPSW settings. I've seen only DIPSW 1 mentioned in Sega Marine Fishing docs, it is enable "rotary" inputs.based on this IO firmware disassembly - the rest can set it's GPIO pins for input or output, change number of players, enable touch screen support (5?), enable printer(s) support, etc.

I spent some time an mapped it all out: Sega JVS I/O Type 2 Dip Switch Settings and pinout

 

[twistedsymphony]

I was going through the NAOMI 2 games earlier tonight and there's definitely something up with the Initial D games and the Type 2 I/O...

ID1 and ID2 will boot straight to test menu when using the Type 2 I/O, and ID3 will give the "does not fulfill game specs" error.

setting the dip for 1 player mode doesn't make a difference, nor does any other dipswitch configuration.

it honestly doesn't make sense that it would need that set either since ID only uses 3 gameplay button (shift up, shift down, and view) so it's not like it would use more than the 12 buttons available on the Type 2 I/O in 2-player mode.

I tried with and without spoofing the coin meters too, but that seemed to make no difference.

If there's a way to get ID to work with the Type 2 I/O I haven't been able to figure out it out.

 

[gamemaster14]

I was going through the NAOMI 2 games earlier tonight and there's definitely something up with the Initial D games and the Type 2 I/O...

ID1 and ID2 will boot straight to test menu when using the Type 2 I/O, and ID3 will give the "does not fulfill game specs" error.

setting the dip for 1 player mode doesn't make a difference, nor does any other dipswitch configuration.

it honestly doesn't make sense that it would need that set either since ID only uses 3 gameplay button (shift up, shift down, and view) so it's not like it would use more than the 12 buttons available on the Type 2 I/O in 2-player mode.

I tried with and without spoofing the coin meters too, but that seemed to make no difference.

If there's a way to get ID to work with the Type 2 I/O I haven't been able to figure out it out.

My guess would be that the Initial D games are hard coded to look for something that the Type 1 has but the Type 2 lacks. Unless it is some obscure setting that needs to get changed that no one would ever think of.

 

[MetalliC]

NAOMI Initial D have such JVS board check:
- number of players must be > 1,
- number of (per player) switches must be > 12,
- number of coin inputs must be > 0

have no idea why developers made it what way

 

[twistedsymphony]

NAOMI Initial D have such JVS board check:
- number of players must be > 1,
- number of (per player) switches must be > 12,
- number of coin inputs must be > 0

have no idea why developers made it what way

If that's true that would rule out the Type 2 I/O because when players = 2 then switches = 12 (so it fails for number of switches), but if you set it to players = 1 then switches = 16 (so it fails for number of players).

 

[MetalliC]

yep, is seems there is no way to use so called "type-2" IO with NAOMI2 Initial D.

this IO firmware have configuration for 2 players / 20 switches each or 2 players / 24 switches each, but this modes probably require some additional IO ICs, which is not present on 13844 PCB, so as you say it hangs instead with such DIP SW settings.