Re: Asteroids mystery mod

Is it a speed up hack board?

I came across one recently, but it was entirely devoured by fire before i
could buy it/document it.

There are lots of adverts in startech journal and other contemporary
magazines about speed ups for Asteroids, its more than likely one of
those...

Andrew Welburn
www.andys-arcade.com
----- Original Message -----
From: "Douglas Gauck" <douglas@gauck.com>
To: <vectorlist@vectorlist.org>
Sent: Wednesday, October 28, 2009 5:22 PM
Subject: VECTOR: Asteroids mystery mod

> Hi all,
>
> Just got this rev 2 Asteroids board and am trying to ID the board
> installed in C5:
>
> http://gallery.me.com/douglasgb#100011/Ast%20Mod%202&bgcolor=black
>
> U1 is an LS161
> U2 is an LS00
> U3 is an LS00
> U4 - U6 are LS393N
>
> pin 9 of U3 can be jumpered to "4", "5", or "6" which go to pins 1,2 and
> 10 of U3 and 9 of U4, pin 11 of U4, or pin 10 of U4
>
> pin 13 of U6 can be jumpered to "1.5", "3.0", "22" or "44" which go to
> pin 5, pin 6, pin 3 or pin 4 or U6
>
> Board is currently not working (no picture, Start 1 and 2 flashing,
> never-ending high beeps in self test); while waiting for RAM I thought
> I'd ask if anyone has seen this and knows what it might do.
>
> -Douglas
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Received on Wed Oct 28 13:35:23 2009