[rescue] Mac IIfx compatible NuBus video card.

[gsm at mendelson.com]

On Mon, Oct 26, 2009 at 01:17:18PM -0400, Andrew Jones wrote:

>I don't know which one Macintoshes used. I find support for 
> composite and sync-on-green to be unpredictable in LCDs.  

The adaptors I have (and the chipset) supported:

   Mode 1 is Composite Sync (1) 
	Sync signal (15 Way D Male pin 3) connected to 15 Way HD Female pin 13

   Mode 2 is Composite Sync (2)
	15 Way D Male pin 3 & 15 connected to 15 Way HD Female pin 13

   Mode 3 is Sync on V
	15 Way D Male pin 12 connected to 15 Way HD Female pin 14

   Mode 4 is Sync on H
	15 Way D Male pin 15 connected to 15 Way HD Female pin 13

   Mode 5 is Separate Sync
	15 Way D Male pin 12 connected to 15 Way HD Female pin 14
	15 Way D Male pin 15 connected to 15 Way HD Female pin 13

   Mode 6 is Sync on Green

They were designed to support almost anything available at the time. 


Geoff.

-- 
Geoffrey S. Mendelson, Jerusalem, Israel gsm at mendelson.com  N3OWJ/4X1GM