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Adding a Dreamcast to my MAME cab

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jaydog:
I just had a crazy idea and was wondering what my fellow cab builders would feel about it.  I think I might throw my SegaDreamcast into my cab, that way (granted not arcade perfect) I can play all my faves that haven't been emulated by MAME yet (IE Street Fighter III, soul calibur, Blitz, MVC 2, etc...)  put this plan does pose a few problems...
1.  I am useing the Hagstrom KE72 for MAME, can I simply split the wire and solder the wire to a Hacked DC controller, in other words, will wiring one button to two different things fry my setup?

2.  I can use a RCA switchbox to swich video from my MAME PC to the DreamCast, but how am I going to switch the audio if I am going to use PC speakers. (OR is there any other alternative sound setup I can use)

3.  Hacking the 4 face buttons on the DC controller should be easy enough, but how can I hack the two analog shoulder buttons? (granted I have never opened mine up to see how they work exactly, but it has to be different from the regular face buttons)

anyway, just thought I would share this Idea with you guys to see what you think.  Feedback is alwaise welcome (especially from those of you who tried this before, I know you're out there :)!!

bowmand1:
It's not that crazy of an idea...

bowmand1:
;D  I just had a brain fart...  you could prob'ly do the same thing I said for switching audio, using the 25-pin switchbox, while still using the RCA box for video to a TV...  just wire the red and white + and - DC RCA connections into 4 pins on the 25-pin A-B box...  just like you would if you were hacking the stereo output from the VGA box and soundcard.  

I don't know WHAT I was thinking...  sorry bout that.  Peace. --dave

Garvv:
Nice info bowmand1, I'm building a bartop mame cab powered by a dreamcast right now.  Just got the 10" svga monitor in the mail the yesterday.

Unfortunately though mamed locks up after a short period of displaying the initial "pack selection" section (you know the one with the spinning vortex behnd it).  I've burned several different versions, and tried several different monitors, but every time the DC ceases to accept input after a few seconds.  If I quickly bypass this screen, I can play the games in an individual pack just fine.  No other games do anything like this.  Any ideas as to getting around this?

About the original post, there is a lot of great info about hacking a DC to a jamma cabinet at:

http://www.mameworld.net/pc2jamma/arc_dc4.html

In addition to video, this includes some great information on how to hack the analog controls, including the actual analog stick.  If you want to be really slick, you can hook the thumb pad and analog stick controls up to your joystick via a 4pdt on-on toggle, and then switch your arcade joystick between thumb pad and emulated analog stick control.

Also the Butler 2001 arcade cab (on the examples page) has DC controls hacked to it.  You should try asking the owner about his setup, I've emailed him before and he's responded.

jaydog:

--- Quote ---It's not that crazy of an idea...
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