Re: Misaligned Vectors in Cinematronics

Mark,

No the problem is only the end points. The double image is just taking a
digital pic without flash and not holding still enough!!!

I'm off to an auction now (don't know why - can't afford to buy anything) and
I'll check it out again when I get home. I'll try and read in the roms tonight.

Thanks
Paul

Mark Shostak wrote:
>
> > The lines aren't lining up straight. It also appears the bigger the vector
> > drawn the more it is out.
>
> I've seen this problem before, but never as severe as in your case.
> You do have a small problem where the _end points_ don't align, but the bigger
> issue here is that vectors being drawn "at the same place" are in different locations.
> I've been wondering if beam current could affect this.
>
> After you check the yoke as Zonn suggested, here are some other things to look at:
>
> 1) Beam current; I would crank the intensity down as far as possible
> (such that an image is still visible, perhaps with the lights out) and let us know if the
> problem goes away or is reduced.
>
> 2) The LV power supply; check the voltage regulators and filters.
> However, I would suspect this is not the issue, as the ripple would have a higher
> frequency than the lines. That does not appear to be the case in your scenario.
>
> 3) Can you send us a picture of the back, so we know what h/w we're talking about?
>
> > Also - I have a different rom set to MAME - you can see that from the test
> > screen in that it doesn't draw the overlay pattern. Also the main screen reads
> > copyright Rock Ola. Should I read these in for anyone? I guess I'll put the
> > MAME roms in so I can line up the overlay easily.
>
> I'd like to see the roms as well.
>
> Let us know what you find.
>
> -Mark
>
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Received on Sat Mar 24 16:15:29 2001