Re: Omega Race speed

One of those got it.. thanks! Was running around 300Hz

--- On Fri, 8/8/08, Mathis Rosenhauer <rosenhauer@dkrz.de> wrote:

> From: Mathis Rosenhauer <rosenhauer@dkrz.de>
> Subject: Re: VECTOR: Omega Race speed
> To: vectorlist@vectorlist.org
> Date: Friday, August 8, 2008, 2:53 AM
> The INT rate affects game speed. If you don't have 244Hz
> on pin 16 of the
> Z80 you should check the counters at S5 and R6.
>
> Mathis
>
> andre wrote:
> > Finally got around to this and replaced the 161
> counter on the clock circuit and still is the same speed..
> Any other part that would affect the clock rate?
> >
> >
> > --- On Thu, 6/5/08, Jess Askey <jess@askey.org>
> wrote:
> >
> >> From: Jess Askey <jess@askey.org>
> >> Subject: Re: VECTOR: Omega Race speed
> >> To: vectorlist@vectorlist.org
> >> Date: Thursday, June 5, 2008, 9:44 PM
> >> I bet that the 12MHz is divided down with a
> counter... if
> >> the counter
> >> failed, one of the lower BCD outputs may be
> pulsing at the
> >> wrong rate.
> >> Take a look at the clock pin on the actual CPU
> with a
> >> frequency counter
> >> (or calculate it with a scope) and I bet you will
> see that
> >> the CPU's are
> >> running at different clock rates.
> >>
> >> andre wrote:
> >>> Have an odd issue.. I have 2 OR pcb sets. I am
> having
> >> some issues with a G05-802 so I swapped in the one
> set (I
> >> was going to sell it) to make sure what the
> problem was was
> >> not gameboard related.. But the set I put in there
> seems to
> >> run about 20% faster than the 'keeper' set
> I have.
> >> The fast set has a 12Mhz crystal, while the
> 'slow'
> >> set has a 12.09Mhz crystal (both new). Other than
> that both
> >> sets work fine, no errors. What could possible
> cause faster
> >> game speed? The sound speed sounds normal, and
> when the pod
> >> changes into the spinning cross it almost hickups
> to keep up
> >> to its speed. That spinning thing also seems to
> appear
> >> faster in the first frame than the other game.
> Dip-switches
> >> are set the same..
> >>> ????????????
> >>>
> >>>
> >>>
> >>>
> >>
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> >>>
> >>
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> >
> >
> >
> >
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>
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Received on Fri Aug 8 21:05:25 2008