NTSC MiniMig

[alexh]

Not sure I fully understand the subtleties but I dont think MiniMig (or any Amiga) suffers from "colour system" problems when not using RGB. I thought it only affected COMPOSITE or RF? Like I said I don't fully understand.

The problem is the scan rate and not the sync rate.

Nope the problem is the sync rate.

LCD TVs that are displaying PAL should do so at a sync of 50Hz

Yeah, but most LCD MONITORS have a minimum sync of 56Hz.

most of these only accept SCAN RATES starting at 30Khz. Not even DoublePAL or DoubleNTSC modes, that go at 28Khz, work on monitors of today. You connected it through RGB?

MiniMig has an "AMBER" scandoubler and produces 31KHz output.

[alexh]

JJ wrote:
But really do not think NSTC is the way to go.  Its a crap tv standard.  I don't even know how possible this, but wouldn't PAL-60 be a much better option ?

PAL-60 would require ECS AGNUS support which is a big job. Support for 60Hz is only one of lots of the changes between OCS and ECS ANGUS'. We're talking 100's of lines of code and many weeks of test. Going forward, that is the way to go, but not now.

Switching MiniMig from "PAL" to "NTSC" is perhaps 4-5 lines changed in Agnus.v (maybe more in the AMBER) and a different crystal.

MiniMig only outputs RGB, and it's scandoubled so it's not really NTSC (or PAL), is it?