NAMCO JAMMA -> JVS converter Instruction Manual

[OldFoo]

maybe have to take the video direct off the JAMMA harness itself and bypass the JAMMA > JVS adaptor and put the signal thru a convertor not pretty but should work I think

Hi Mick, I am pretty sure that this woild work if I took the video direct from the JAMMA harness and wired in one of those CGA->VGA converters that seem to be all over the place. The only problem with that solution is there is no clean way to wire it and I am trying to avoid a snakepit and get a nice clean solution with just a standard XXX-VGA converter



My ideal solution would be



Output from 15 pin NAMCO -> 15 pin in magic box -> 15 pin out magic box (VGA) -> 15 monitor cable



That is what I am shooting for.



Thanks

Bob

[OldFoo]

yeah the ideal scenario never works out, maybe make a JAMMA extender cable to add in line between JAMMA PCB & JAMMA convertor???? can use when u need to or pull out if the board has VGA?

[OldFoo]

I recently purchased a NAMCO JAMMA->JVS Converter



It did not come with any instructions.



Most of the stuff is pretty straight forward (JAMMA, Power, USB, Audio, Video)



I have it up and running but I am waiting for a CGA to VGA converter to set it run properly. (I've tried one so far but I had to send it back becuase it did not work)



I did have a couple of questions and would like the manual if anyone has a soft copy (I Googled but could not find one)



1) What does the MN/ST jumper do? Mono/Stereo

2) Why are there two 15 pin video outputs? for vs play

3) Is there any difference between the two video outputs? no

4) Are both video outputs standard CGA? TBD

5) Looks like there is either an S-Video or QWERTY keyboard connector, what is this for? S-Video Out

6) What is the extra 10 pin connector beside the JAMMA connector for (kick harness maybe)? TBD

7) What does the reset button do? TBD

What does the four position dip switch do? TBD



One a side not what is the best CGA->VGA converter with a 15pin input and 15 pin output?





(I tried the one on ebay from Amery but it did not work properly, it just doubled the H-Sync and it was not close enough to the 31Khz to work, no adjustment, so I just got a bunch of pixels)

http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... 0375733782

Hey Bob, got a PM here and while browsing saw this post. I can answer all your questions for you dude, as I've had a Cyberlead for years =]



1. The video outputs are actually both whatever the board is, so normally either 15khz or 24khz, as the CL has a dual-res Nanao stock. One of them is used for sending the picture to the screen, and the other one runs your video through to the NTSC converter board in a Cyberlead, for NTSC video output, and linking as well



2. The "s-video" type jack is actually for wiring certain Namco boards like Tekken 2 to the CL's LED display marquee



3. The extra 10=pin connector is for your kick buttons as you guessed, the CL actually came with an adapter for it, but it's def. easy to make your own - and the pinout is:



(starting closest to the jamma harness to the edge)



1 - Speaker Out + (for mono)

2 - Speaker Out - (for mono)

3 - Ground

4 - P1 Button 4

5 - P1 Button 5

6 - P1 Button 6

7 - P2 Button 4

8 - P2 Button 5

9 - P2 Button 6

10 - Ground



4. The reset button is for the scrolling LED marquee in the CL, and the dip switches are for different Namco boards (Sys 11, System 246, etc.) Essentially, all just for use w/the Cyberlead



5. The best CGA - VGA converter I've ever seen/owned/used is the XRBG2, made by Micomsoft. They're pretty pricey though, and I know there is an XRBG3, and some other models. You can get them on YHJ for decent prices, but still they'll run you a bit. (few $100 used) Still, they're totally worth it, and they produce the best transcoding I've ever seen. They even have a scanline setting that simulates the raster in RGB games =]



Hope all this helped if you didn't already find it out from Mick or someone lol. Here's a scan of the diagram from the manual as well. Hope all's ggod w/you man!

[OldFoo]

I think I got what I was after



1) No Custom Harnesses

2) All Stock Components

3) CGA JAMMA -> JVS on NAOMI Universal VGA

4) All connections standard NAOMI Universal Connections

5) Just one extra VGA cable and upscaler



(on a side note the CGA-VGA converter will need to be wired for power at some point, running off a 5V power supply right now, only two wires to wire, probably gonna use a GD-ROM power splitter cable to keep it clean)



Another strage thing is that it is connected to the RGBHV (not the CGA) input on the upscaler which the specs say support RGBHV 30.5-32.5K



So I am wondering if the NAMCO converter is doing some kind of conversion because I am almost 100% certain my JAMMA board if 15KHZ (In fact I know it is)



Maybe it is upconverting to EGA?



All I know is straight through VGA cable from NAMCO to RGBHV input on upscaller is working



Now I just need to mount this in a NICE enclosure with the same footprint as a Naomi so that I can just swap it out when I wanna do JAMMA



I might even try to mount it in a busted up NAOMI 1. :smt020

[OldFoo]

Hi,



I have exactly the same setup as shown above.



video - works

audio -works



but the controls (2 players) do not work.

No insert coin, no start buttons (testet with free play).



The (jamma) pcb works without any problems on my mak.

The control panel completely works with Virtua Striker 2 2000.



On JVS-2-Jamma Converter SW2 (the dip switches) are all off.



Any suggestions??

Thanks in advance.



regards,

eXo

[OldFoo]

i've problem too but only on credit.



i cannot add credits via coin mech but only via service button

[OldFoo]

Hi,



thanks for reply.



"credit" via service button means one of 4 buttons under the control panel?

because these also give no function in my setup



i thought about wireing the controls directly to the jamma adapter and bypass the usb cable.



who knows where I can buy the needed connectors to make the wireing as easy as possible!?



regards,

eXo