Re: Stupid screen flip question

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I have a PDF that is almost unreadable. Jack is a cinematronic game..
Not a Universal board.
        There is not dip switch for screen flipping except for cocktail mode that
only solved the problem 50% of the time :-)
        Another note to anyone why ever tried to Jamma one of these board...
There is an undocumented "feature" Pins 20 and X are for the volume pot.
It was not noted on the schematic, or on the pinout on Spies. Without is
you get no sound!

-=Mark=-

John Robertson wrote:

> Assuming that there is no dip switch to do this, I would then take a
> look at Universal's Lady Bug schematics for clues as how that game flips
> the image. It gives a number of labels on the schematic about the FLIP
> function...I suspect you'll need some 74LS86's to accomplish this task.
>
> Do you have Jack's schematics? I should if not...
>
> John :-#)#
>
> At 02:20 PM 28/06/2002 -0700, Mark E Davidson wrote:
>
>> I think I already know the answer but Im going to as it none-the-less.
>> Is there any Hardware way to flip a vertical picture if it is upside
>> down? (an no smart answers like flip the monitor)
>> I have a similar problem like the Mr. Do board where it is
>> coded to have the monitor mounted in the "non Standard" orientation.
>> A few people were kind enough to recode Mr. Do to offer a little used
>> switch setting to be remaped to flip the screen but the game in
>> question is Jack The GiantKiller and no switch setting or recoded rome
>> seems available.
>> Please respond even if the answer is your screwed. :-)
>>
>> -=Mark=-
>>
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>>

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Received on Fri Jun 28 12:01:55 2002