Scandoubler / Flickerfixer solution!

[vic20owner]

You mentioned it works in NTSC mode, but that's on a PAL machine in NTSC mode... does it actually work with an NTSC machine?  This link says it is PAL to VGA only...

http://www.firebird-systems.com/graphics/tuners/cmt345.shtml

Does that even matter for the RGB input?  I don't think there is any difference between PAL and NTSC in RGB except for the refresh rate.

Only the composite and s-video signals would be different.. so those inputs would not work correctly I bet.

[DrDekker]

Just followed the link - at approx £91 that's well cheap!!!

In the 'dear' old (rip-off) UK, that'd cost you £150 - approx $300. :madashell:

[orange]

no voltage was supplied on Video Pin23.

its just the blown fuse, very common problem. trivial to replace. but its pretty expensive because its small, so called microfuse .
I had it on A2000 motherboard. RF modulator wouldnt work without it.. obviously


this thread is too long, can someone give me conclusion?

[Framiga]

vic20owner wrote:

You mentioned it works in NTSC mode, but that's on a PAL machine in NTSC mode... does it actually work with an NTSC machine?  This link says it is PAL to VGA only...

http://www.firebird-systems.com/graphics/tuners/cmt345.shtml

Does that even matter for the RGB input?  I don't think there is any difference between PAL and NTSC in RGB except for the refresh rate.

Only the composite and s-video signals would be different.. so those inputs would not work correctly I bet.

your posted link is related to the Component input only (not the RGB that we need).

Keep as reference the Cypress home page

and the "PAL" is related to the Composite-YC and tuner bits.

Here the tuner/component version CM345T unuseful with Amigas

[sigmason]

I'm hoping someone with a CM345s will test this for me:

As per AlexH from a different thread regarding 24 bit scan converters:

As an example, open this image in windows with a 24-bit (or 32-bit) screen.

http://www.spronkey.com/sdc-gradients.png

Then change the colours to 16-bit. You will see the loss of information on the 256-colour (smooth) gradient bars.

Someone with a CM345s and an AGA equipped Amiga please open this image and see if you see gradient bars in a 24 bit mode.

Thanks,
Sigmason

[alexh]

http://www.amiga.org/forums/showthread.php?t=35527

Jens Schoenfeld's post near the end of that topic blows away all other scandoublers. It is internal, so no DIGITAL->ANALOG->DIGITAL->ANALOG issues. 24-bit supports all Amiga screen modes.

It's what A1200 users want!

[sigmason]

It's what A1200 users want!

And it's useless for all the other models and the Video Toaster.  So sadly, while I completely agree that avoiding the  reconversion is a great thing, it's of little value to me as I don't have an A1200.

This isn't about a market to me, it's about making it work.  If it were about money, I'd be sitting here with my logic analyzer and a schematic tearing apart my Amiga boards.

I just want something simple and with limited risk to chips that won't be easy to replace, even if it may cause some issues.

Sigmason

[sigmason]

Double post - deleted.

Sigmason