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From: p554mve@mpirbn.mpifr-bonn.mpg.de (Michael van Elst)
Newsgroups: comp.sys.amiga,comp.sys.amiga.tech,comp.sys.amiga.hardware
Subject: Re: A3000 Video Chips
Message-ID: <1091@mpirbn.mpifr-bonn.mpg.de>
Date: 7 Jul 90 23:04:28 GMT
References: <4741@munnari.oz.au> <13060@cbmvax.commodore.com> <16713@windy.dsir.govt.nz>
Reply-To: p554mve@mpirbn.UUCP (Michael van Elst)
Organization: Max-Planck-Institut fuer Radioastronomie, Bonn
Lines: 16

In article <16713@windy.dsir.govt.nz> SRWMCLN@windy.dsir.govt.nz (Clive Nicolson) writes:
>In article <13060@cbmvax.commodore.com>, peter@cbmvax.commodore.com (Peter Cherna) writes:
>> The ECS chipset is capable of both NTSC and PAL.  In the A3000, there is
>But does the jumper change the colour sub carrier frequency too, or just the
>number of lines. That is exactly what does the jumper change.

As far as I know, neither the A2000 nor the A3000 are producing a
composite video signal that could contain a colour sub carrier.
Their output are separate R,G and B signals. The differences between
PAL and NTSC modes are timing differences only.

-- 
Michael van Elst
UUCP:     universe!local-cluster!milky-way!sol!earth!uunet!unido!mpirbn!p554mve
Internet: p554mve@mpirbn.mpifr-bonn.mpg.de
                                "A potential Snark may lurk in every tree."