Amiga.org

Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: Dr.Bongo on May 13, 2012, 12:12:15 AM

Title: CV64 Scandoubler colour issue
Post by: Dr.Bongo on May 13, 2012, 12:12:15 AM
Recently installed a Cybervision with scandoubler in my A4k, had no installation issues and all is well. Except, native screens are ok 90% of the time until it displays AGA graphics. What I mean is that it has a colour problem. Only on AGA demo's etc it sometimes displays totally the wrong colour, most noticeable when there's colour scaling. Can't see that I've done anything wrong so I thought I'd ask you good peeps out there for some input?

p.s happens on multiple monitors, so I've ruled them out.
Title: Re: CV64 Scandoubler colour issue
Post by: Ratte on May 13, 2012, 09:24:16 AM
Thats normal, because all Scandoublers and Flickerfixers reduce the number of colors to keep the required electronics in a small size.

There is only one fullcolor and full AGA compatible "old" standalone flickerfixer:
- CompServ AGA FlickerFixer II
Its rare, expensive, and analog (requires adjusting after warmup) and its fullsize in its slot.
(You cant use a ZIII expansion in the same slot)

The Picasso4 has a inbuild flickerfixer with 24bit .. but this couldnt help with a cv64.

And there are two "new" flickerfixers with full color / AGA support:
- Indivision AGA MK 1
- Indivision AGA MK 2

They are both "digital" and dont need a slot (plugged on the chipset).

If you own a old cv64 (non 3d) you can connect the indivision output with the cv64 for automatic monitor switching.
With a cv64/3d you need some extra electronics ...
http://www.amiga.org/gallery/index.php?n=3331
Title: Re: CV64 Scandoubler colour issue
Post by: Dr.Bongo on May 13, 2012, 09:46:15 AM
Thanks Ratte for the answer.
After spending 280 euros getting the CV64 + doubler I don't think I'll be changing anything just yet.
Title: Re: CV64 Scandoubler colour issue
Post by: Ratte on May 13, 2012, 09:08:50 PM
Quote from: Dr.Bongo;693044
280 euros

?8-O