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Author Topic: A520 RGB adapter  (Read 2787 times)

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Offline Oldsmobile_Mike

Re: A520 RGB adapter
« on: June 04, 2003, 06:30:19 AM »
Hummm...

So is there any way (anybody?) to get A1200 composite video output in color?  The MB compo out is grayscale, with an A520 I also get only grayscale.  For what it's worth, my A1200 is a PAL model (ordered from Germany, if I recall correctly) so I have to use early startup every reboot to switch to NTSC, and the MB TV out doesn't work at all (probably 'cause it's PAL).

Haven't hooked it up in years, but seems to me my A500 did output a composite signal in color...
Amiga 500: 2MB Chip|16MB Fast|30MHz 68030+68882|3.9|Indivision ECS|GVP A500HD+|Mechware card reader + 8GB CF|Cocolino|SCSI DVD-RAM
Amiga 2000: 2MB Chip|136MB Fast|50MHz 68060|3.9|Indivision ECS + GVP Spectrum|Mechware card reader + 8GB CF|AD516|X-Surf 100|RapidRoad|Cocolino|SCSI CD-RW
 Amiga videos and other misc. stuff at https://www.youtube.com/CompTechMike/videos
 

Offline Oldsmobile_Mike

Re: A520 RGB adapter
« Reply #1 on: June 05, 2003, 03:37:35 AM »
That's the RF that doesn't work at all, or gives just some wavey lines, something like that (it's been years).  Presumably because it's PAL output was choking my NTSC television set.

I'd be interested in hearing more about this hack to set the machine to NTSC.  Last time I looked into it AFAIR it was some horribly complicated thing that involved soldering some pins, wires, etc., on the motherboard.  Aagh why Commodore why couldn't you just put a jumper setting??  ;-)

Also can you give me more info on this "Pal on ntsc should always give a blackn white picture as should ntsc on pal," - is that just the way it is, or is there some logic in the video system behind it?  Are you saying that if I had a genuine NTSC A1200 MB I'd get a color composite out on my NTSC video hardware?

Thank you very much.
Amiga 500: 2MB Chip|16MB Fast|30MHz 68030+68882|3.9|Indivision ECS|GVP A500HD+|Mechware card reader + 8GB CF|Cocolino|SCSI DVD-RAM
Amiga 2000: 2MB Chip|136MB Fast|50MHz 68060|3.9|Indivision ECS + GVP Spectrum|Mechware card reader + 8GB CF|AD516|X-Surf 100|RapidRoad|Cocolino|SCSI CD-RW
 Amiga videos and other misc. stuff at https://www.youtube.com/CompTechMike/videos