JAMMA board video hookup

Zane Healy healyzh at aracnet.com
Sun Oct 18 18:12:53 CDT 2015


On Oct 18, 2015, at 3:16 PM, Jules Richardson <jules.richardson99 at gmail.com> wrote:

> On 10/18/2015 11:48 AM, Zane Healy wrote:
>> 
>> On Oct 18, 2015, at 9:20 AM, Jules Richardson <jules.richardson99 at gmail.com> wrote:
>> 
>>> It came from an Aero Fighters cab - board says "IT-19-02" in the corner. I've no idea if it was a one-off for this game or if other games used the same board with different firmware.
>> 
>> If you can get it working, it should be a fun game!  I love Aero Fighters 2 & 3 (aka Sonic Wings) on the Neo Geo.
>> 
>> Looks like this page might have some details to help.
> 
> Linky not appearing :-(
> 
> I just hooked the board up to a PSU and a speaker, and it makes promising tuneful noises (at ear-bleeding volume*) - so it seems like basic CPU, RAM and ROM are there at least.
> 
> * I've no idea what the original impedance would have been, or how many a typical cab had (more than one?).


If you get that far, then it may have been a monitor problem, rather than a board problem.  Or the board problem is in the video circuitry.

Here is the link I meant to send.

http://hacks.slashdirt.org/hw/supergun/

Even now typical cabinets only have one JAMMA board.

I've been researching a project I'm getting ready to start in on.  I want to make some custom arcade controllers as I love the old 8-bit game systems, but the old controllers are *painfully* bad.  As a result I've come across these things on a few pages.  You can find them cheaper on eBay.  It looks like they do what you want.

http://www.focusattack.com/gonbes-gbs-8220-v3-cga-ega-yuv-to-vga-arcade-hd-converter-pcb/

Right now I'm stuck on figuring out the best option for housing my controller.  The first will be a simple Atari joystick replacement that replaces the joystick with 4 Happ arcade buttons and two fire buttons (so it can be used for either Atari 2600 or 7800.  That's child's play, a good housing isn't.

Zane




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