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Amiga computer related discussion => General chat about Amiga topics => Topic started by: amiga4001 on January 24, 2005, 09:46:28 PM

Title: Retina Z3 unclear screen
Post by: amiga4001 on January 24, 2005, 09:46:28 PM
Wanted to try me my retina card instead of my picasso 2 in my A4000T.
Thought I could connect the signal from my GVP IV-24 (as scandoubler) and the retina signal through a dataswitch box.
But when screen comes on picture is unclear(fuzzy).
When I plug the monitor direct in the retina the quality improves a lot but still is not totally clear.
The picasso 2 also suffered on this a little bit.
Dont think it is the monitor to blame as nomal(doubled) screen looks good.
Running on picasso 96.
Monitor is running on 64 Khz.
Anybody also got these kind of experiences?
Title: Re: Retina Z3 unclear screen
Post by: adolescent on January 24, 2005, 09:57:08 PM
Usually, it's the quality of cables and switchbox.  If it's a simple mechanical switchbox then that's a big problem.  Also, try to use quality cables and keep the length down to a minimum.
Title: Re: Retina Z3 unclear screen
Post by: MskoDestny on January 24, 2005, 10:23:31 PM
Also, keep in mind that higher resolutions require more analog bandwidth across your video cabling making them more susceptible to ghosting on poor quality cables/switchboxes.  This is probably why the scandoubler output looks fine since it's fairly low-res.
Title: Re: Retina Z3 unclear screen
Post by: amiga4001 on January 25, 2005, 06:44:03 AM
Already thought me something like that.
But I can not shorten the cables as the monitor is now directly attached to it.
The switchbox is indeed a manual one.
Whould a automatic one help?
There was a german company selling them(for internal use) but I can't recall which one.
Maybe I should buy me one of these to get both my signals on my screen.
How would a flat screen work?
Title: Re: Retina Z3 unclear screen
Post by: keropi on January 25, 2005, 07:11:25 AM
what do u mean by telling that picassoII has a fuzzy pic? my picassoII goes through a ps2 vga-box and then to the monitor, and picture is crystal clear.... there is problems with your cables...
Title: Re: Retina Z3 unclear screen
Post by: amiga4001 on January 25, 2005, 09:59:10 PM
Have you installed Picasso 96?
I removed the retina card from the zorrobus because I got strange errors.
I must say the screen looks allright now.
Is there a difference in switch boxes?
I mean for data/screen?
Maybe it was the two cards together what produced the disturbance when directly attached to the retina.
Think I will stick to my picasso.And leaf the retina on the shell.
That is till I find a better solution for switching screenmodes.

Title: Re: Retina Z3 unclear screen
Post by: adolescent on January 26, 2005, 01:13:26 AM
That's a shame, because the Retina Z3 is a nice fast card.  Belkin sells gold plated cables in short lengths.  We use them at work to extend KVM consoles where needed (standard cables tend to add ghosting).