Re: Asteroids mystery mod

I bet you're right as C5 is the starting point for speed mods, just
curious to see what the various jumper settings will do... 1.5 to 44
is quite an interesting range.

-DrG

On Oct 28, 2009, at 1:35 PM, Andrew Welburn wrote:

> 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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>
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Received on Wed Oct 28 16:02:43 2009