Help with figuring out 2400 Turbo conversion to NTSC and cards?

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#78

From: Ron Peterson
Date: Fri, 08 Jan 1993 19:59

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  I'm seeking some help please in trying to figure out how to get NTSC video
out of an Iris 2400 Turbo that was recently given to me.  I've discovered 
that the machine can be configured for two out of three display monitor 
types: 60Hz-noninterlaced, 30Hz-interlaced and NTSC.  It currently is set 
for 60Hz and 30Hz.  I'd prefer NTSC to 30Hz since I'd like to do some 
animation work.  Any idea what it takes to get NTSC out?
I seem to remember that it required switching some internal DIP switches
on a card but who knows which ones?

I'd also like to know what each card does.  There are three cards on one 
side and five cards on the other.  They are labeled:

IP1
Ethernet
DSD

BP3
BP3
DC4
UC4
GF2

Ethernet is obvious, I think IP1 is some sort of interprocessor/bus interface
card for connecting the cards on the left side to those on the right.
I don't know what DSD might be (disk controller?).
I suspect the BP3's are bitplane cards (3 planes?).  GF2 may be the geometry
engines.  And DC4, UC4 the processor and RAM cards (I know there's 4M of RAM).

Please reply via email to:
ron@vicorp.com or uunet!vicorp!ron

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Message-ID: <1993Jan8.195944.11418@vicorp.com>

Path: arc1-ca.pugleaf.net!sparky!uunet!vicorp!ron

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Newsgroups: comp.sys.sgi.hardware
Path: arc1-ca.pugleaf.net!sparky!uunet!vicorp!ron
From: ron@vicorp.com (Ron Peterson)
Subject: Help with figuring out 2400 Turbo conversion to NTSC and cards?
Message-ID: <1993Jan8.195944.11418@vicorp.com>
Organization: V. I. Corporation, Northampton, Massachusetts
Distribution: na
Date: Fri, 8 Jan 1993 19:59:44 GMT
Lines: 31