VECTORLIST - The Mailing List For The Technical Discussion of Vector-Based Arcade Games

November_1997
Re: Major Havoc


From: Bill Esquivel ( )
Date: Wed Nov 12 1997 - 02:53:31 CST


Are the quad pokeys on firefox and ROTJ as the one on MH? I have a weird looking
quad pokey. Instead of the board socket being in the middle, this one is off in
the corner. The 4 chips are all in a row.

on the front it says
a041774
atari 83

on the back it says
041775-01
pct f 084

any ideas?

Clay Cowgill wrote:

> >>
> >> >2 . Would it be easy to duplicate (haven't downloaded the schematics yet)
> >>
> >> Yep. Two layer, pretty simple. Main problem there is that it's physically
> >> a pretty large PCB. Just be kinda expensive to make.
> >
> >Actually there are two varieties of quad pokeys floating around.
> >
> >There is the board with 4 pokeys (40-pin socketed) on it. There is also
> >another version where atari turned out a tiny little board with 4 blobs
> >on it (each blob is a pokey die directly attached to the board).. I prefer
> >the "big" version because it is fixable.. :)
>
> Kurt's right-- Atari had problems with production of the chip-on-board
> (die-on-board) version at first so the Quad Pokey eliminator PCB was
> designed and used (mostly?) on Major Havoc. The Return of the Jedi game
> has the actual Quad Pokey, as did most Fire Foxes I've run across. I dunno
> what else had them...
>
> -Clay
>
> Clayton N. Cowgill Engineering Manager
> _______________________________________________________________________
> /\ Diamond Multimedia Systems, Inc.
> \/ Communications Division http://www.supra.com/


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