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[webmonkey]

I'm putting together a Mameox into a Jamma cabinet, and going to do this twice (2 cabinets, well, 3 actually)
 
since arcade 48-in-1 Jamma boards for sale are basically the same darn thing (a basic PC with rom images and a Mame program embedded in it)..

 only multiplied price 5x what I can get a used xbox at Gamestop and softmod it..

What I've got.. an official MS A/V HD box with Y Pr Pb outputs.. from what I've seen of the few diagrams I've found, either the software or a grounded pin will switch the box to output R G B mode through those same wires (maybe, it's a 1.5) and from there I think I'm supposed to do the same thing as a SCART cable mod (resistors, etc) to get the signal to the jamma harness/ to the arcade monitor..

First off, anyone correct me on this and/ or point to a current diagram that would be proper for getting that RGB signal in the right form for that arcade monitor hooked up tp the jamma wiring..
( I searched the archives, but most every link was outdated or not quite enough info)

Also would like some opinions on this thing: "Xbox to Supergun/Jamma cabinet system" that this one guy's selling on ebay.  It would be less work for me, but I'd like some real-use input from folks who've used it.  I'm doing this more than once, so I'd like to get it right the first time so the trickier conversion can go well.. (an old Galaxian sitdown cabinet)

As far as my original plan, I have a box full of xbox controllers I got for a buck apiece; bad mushroom joysticks, mostly.. not using those (IMG:style_emoticons/default/smile.gif) that I am going to tap to make the controller interface to the cabinet joysticks..

but the video has been the basic challenge. I want to make sure I don't fry the box hooking it up. Oh, and a clear signal. Kinda important, that. Edit: Duh- Google the thing? video diagram here


Much appreciate any info folks can provide. Reverse is true if someone has a question _I_ can answer from my pre-soldering research..

This post has been edited by webmonkey: Nov 24 2007, 04:00 AM

[toze_feup]

I think the best and easiest way to do it is to buy an ultimarc kit that does it all (Xbox to jamma connector).
Check it here in the bottom of the page (Xbox Jamma adaptor): http://www.ultimarc.com/xba.html

I have friends that used and after some jumper tweaking it works like it should.

I made a different approach to an arcade cabinet conversion a little more home made DIY, I used the "old soldering controller hack" you can see it here: http://www.arcadetoze.awardspace.com

Hope to have helped!

This post has been edited by toze_feup: Dec 12 2007, 02:24 AM

[.Ix]

nah, ultimarc stuff is too expensive.

get the xbox timer from excellentcom.net. they sell it for like $25. you can turn the timer off if you ask Fannie for the manual. (they have different models.) been using mine for like 10 of my cabs. they work perfectly if you ask me. the only flaw is that you can definitely see the interlacing. (not too big of a deal, and there's nothing you can do about it because the xbox can't spew 240p.) you won't even have to do any real work. just hook up the Back button to your coin slot and you're done. that's all of the wiring you'll ever need if you don't want to link caps.

[madbare]

Hey .Ix,

Have you had any issues with the xbox timer from excellentcom?  I got one and everything is working except the video.  I cannot figure out what is wrong.  The monitor is a Neotec 25" that is in a Chicago Gaming Ultimate Arcade 2+ cabinet.  I have one of the 1069 in 1 boards from them as well and it works fine in the cabinet.  I sent the xbox timer back to them and they said there is nothing wrong with it and are sending it back.  Support from them has been horrible.  They sent me the xbox timer manual and it was all in Chinese.  I had to get it translated so I could build a fingerboard for my cabinet.  Anyway, any advice on the video would be greatly appreciated.

Steve