[Coco] S-video Prospects...
jdaggett at gate.net
jdaggett at gate.net
Sat Dec 17 19:04:07 EST 2005
I will almost bet that the MC1377 is no longer available. Motorola
killed off a lot of the conseumer electronics IC even before they
spun off SPS as Freescale.
I agree usign the AD723/4 chip on a daughter board would be far
On 17 Dec 2005 at 16:13, John Kowalski wrote:
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
From: sock at axess.com (John Kowalski)
Subject: Re: [Coco] S-video Prospects...
Date sent: Sat, 17 Dec 2005 16:13:38 -0500 (EST)
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> At 02:15 PM 17/12/2005 -0500, Roger "Merch" Merchberger wrote:
> >That said, my service manual has the complete parts lists (right down
> >to the capacitors & resistors) and a PCB layout of both sides of the
> >PAL daughterboard. If all of the 3 chips are commercially available,
> >other than the actual building of the board, one _might_ be able to
> >come up with a source of PAL boards without having to destroy PAL
> >CoCo3's in the process... ;-)
> >How much trouble would a person be in if he or she were able to...
> >"replicate" the PAL board? [[ Admittedly, it's not like said person
> >would be costing Tandy any lost profits... ]]
> I haven't opened up the project box to have a look at that board
> lately, but I have a feeling the chips aren't available any more and
> that the board has too many other components to make it worthwire to
> build as-is.
> Stephen Fischer suggested a few chips a while back. This one in
> particular is probably ideal:
> It pretty much does everything to generate composite & svideo all by
> itself and beyond adding a crystal to it, probably requires next to no
> additional parts to build an RGB to S-video adapter out of it.
> If we want simple and inexpensive, this is probably it.
> John Kowalski (Sock Master)
> Coco mailing list
> Coco at maltedmedia.com
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