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Atari Vegas 3 Boards questions ?
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u_rebelscum:
I don't have any of these boards, but as I understand it, there is a difference in input hook ups if you use 49-way joysticks, between the sports games and the gauntlet games.  The sports games have a an extra multiplexer input board and the gauntlet games don't.  This would mean changing between any of the sports is easy, between either of the gauntlets easy, from a sports game to a gauntlet game would be almost as easy, but rewiring the harnesses is needed. Going from one of the Gauntlets to to any of the sports games, however, requires that extra multiplexer board.

Again, just to make sure it's clear, this is only if 49-way sticks are in use.  Which means the other solution for gauntlets<->sports swapping is to switch to 8-way stick and dipswitch settings.
MonMotha:
Both Vegas and Seattle use the "I-40" board when using 49-ways in a 4 player setup.  Gauntlet should use that, too, if it uses 49-ways.  Either that or it would have to use a similar, but possibly incompatible setup.  The board doesn't have enough inputs to handle 4 49-way sticks and 4 buttons per player (start + 3 butons) even if you start using inputs for things other than their intended purpose.
Paladin:
There is no input board for Gauntlet with the 49 ways, the sticks wire directly to the board.  You can check the picture I attached to see where all the inputs go.  I know the sports games do use the extra board, but I don't know why.
MonMotha:
Oh, are they hooked up to the "GUN" inputs?  I figured those were actually, you know, light guns :)

If those can be used as GPIO, then that gives them all the inputs they need.  Blitz would likely only use an I-40 for backwards compatibility with Seattle, then.
ctozzi:
k so it looks to be fairly easy to do this then
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