Re: screwy Asteroids problem (running in Asteroids Deluxe cabinet)

Tom,

Thanks for the info, but I've been off the list for a while and
haven't visited Scott's site in some time either (yes, I know it's
Mr. Brasington, since I own most of his multi-game kits). I
was thinking I heard something about him taking over this, but
I wasn't sure, so I didn't say anything. You know what they
about one opening their mouth and confirming they are a fool...
:>

I am glad to hear Scott is taking this over, since his kits are
Grade A and I'll definitely be buying one!

Scott C.

Tom McClintock wrote:

> ???
>
> Scott C., have you not seen that Scott B. (who is the same Scott
> Brasington as below) has an almost finished Lunar
> Lander/Asteroids/Asteroids deluxe multigame that is in it's last
> stages of beta testing?
>
> tm
>
> Scott Caldwell wrote:
>
>> Scott, those adaptors like interesting. I'd also like to play
>> Asteroids in my
>> AD cabaret cabinet. :)
>>
>> I've been holding onto this Asteroids PCB thinking Clay will some day
>> complete
>> his promised A/AD/LL multi-game.
>>
>> Scott C.
>>
>> Scott Brasington wrote:
>>
>>> Pins 19 (X) and 16 (Y) control video inversion. There is no
>>> way to control them via software unless you want to mod the
>>> board. Asteroids only uses pin 19 to invert *BOTH* X and Y.
>>> Very early asteroids boards did not have any video inversion support.
>>> Cocktail is implemented by looping back the P2out signal which is
>>> tied to the Bank RAMSEL circuit when Player 2 is active.
>>> DLX upright mirror cabinet will ground pin 19 (X), which has the
>>> affect of inverting both X and Y when an asteroids board is plugged
>>> in to a DLX upright mirror cabinet (which leaves it with
>>> the Y backwards in reference to the mirror). Hope that helps.
>>>
>>> FWIW, I ran some proto adapters a few weeks ago that are
>>> pure plug and play for ast/dlx including video inversion
>>> circuit, audio amp impedance matching (AR vs. ARI/II), and
>>> input signals swapped. I have not had anytime to test
>>> out the audio stuff yet, but the X flip and input swaps
>>> works fine. I myself have only a DLX cabinet and having
>>> a plug and play way to change boards will be a great helper.
>>> Now that I'm back from vacation hopefully I'll have some
>>> time to catch up on arcade things again. My kids are wearing
>>> me out, glad they will be returning to school!
>>>
>>> -Scott
>>
>
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Received on Tue Apr 4 17:55:57 2006