MVS Consolization project (DONE Differently)

[low_budget]

I tried building a RGB to composite/s-video converter using the AD725, using the schematic on this page:

http://www.engadget.com/2006/11/28/how- ... cade-game/" onclick="window.open(this.href);return false;

But, it produced a very poor quality image that was almost unrecognizable. I didn't bother troubleshooting it, I just bought a converter. Pre-made converters are nearly the same cost as building the AD725 circuit.

RGB to composite/s-video $25
http://www.arcadespareparts.com/arcade_ ... 12217.html" onclick="window.open(this.href);return false;

RGB to VGA $35
http://www.arcadespareparts.com/arcade_ ... 13052.html" onclick="window.open(this.href);return false;

If you have a TV with a VGA input, the VGA converter has better compatibility and picture quality, so I would go with that.

Also, I made a wiring diagram of my SuperGun system.
Only the component side of the JAMMA connector is shown, the solder side is nearly identical (minus the video and sound.)
The DB15 connector is fully compatible with NeoGeo controllers, or build your own controller so it has 6 buttons for fighting games ( plus a start button.) I used 2 unused pins on the DB15 connector for wiring the 6 and 7 buttons. Most JAMMA boards only support 3 buttons on the connector, if more buttons are needed they are connected using the appropriate kick harness.
The DB9 connector is for connecting a kick harness to use buttons 5-7 and/or stereo sound. This way, you can easily swap out games without tedious wiring of the kick harness.

Aside from soldering lots of wires, building your own supergun is surprisingly simple.

[Snow_Cat]

http://en.wikipedia.org/wiki/Image:CGA_ ... B_Text.png
Does it look like the picture on the right?

(out of curiousity)

[neopenny]

does anybody have a picture of the engadget one hooked up? i saw that on the link it tells you how to make the RGB to NTSC adapter, but does anybody have pictures of it hooked up?

thank you

I tried building a RGB to composite/s-video converter using the AD725, using the schematic on this page:

http://www.engadget.com/2006/11/28/how- ... cade-game/" onclick="window.open(this.href);return false;

But, it produced a very poor quality image that was almost unrecognizable. I didn't bother troubleshooting it, I just bought a converter. Pre-made converters are nearly the same cost as building the AD725 circuit.

RGB to composite/s-video $25
http://www.arcadespareparts.com/arcade_ ... 12217.html" onclick="window.open(this.href);return false;

RGB to VGA $35
http://www.arcadespareparts.com/arcade_ ... 13052.html" onclick="window.open(this.href);return false;

If you have a TV with a VGA input, the VGA converter has better compatibility and picture quality, so I would go with that.

Also, I made a wiring diagram of my SuperGun system.
Only the component side of the JAMMA connector is shown, the solder side is nearly identical (minus the video and sound.)
The DB15 connector is fully compatible with NeoGeo controllers, or build your own controller so it has 6 buttons for fighting games ( plus a start button.) I used 2 unused pins on the DB15 connector for wiring the 6 and 7 buttons. Most JAMMA boards only support 3 buttons on the connector, if more buttons are needed they are connected using the appropriate kick harness.
The DB9 connector is for connecting a kick harness to use buttons 5-7 and/or stereo sound. This way, you can easily swap out games without tedious wiring of the kick harness.

Aside from soldering lots of wires, building your own supergun is surprisingly simple.

[weaponepsilon]

I've partially abandoned the project to focus on other things. I still have everything though in case I get the itch to revisit it. I was watching a video PAL to NTSC converter on ebay that was like $40. It's just funny that at the heart of my project is a bunch of converters going into other converters. I even got a casing and everything for it; swapped out the MVS board for one that was closer to my design; bought a supergun board...And I haven't touched it in over a year.

[nilminvarasen]

Hi there,

Thank you so much for your 5 would dos and your 5 wouldnt dos

My wedding is two weeks away and I need all the advice I can get as I always feel I am missing things

Thank you,
Meezies