7 Jun
2000
7 Jun
'00
5:36 a.m.
I'm guessing it's a video I/O board for a Quadra 630ish machine. These were
squat and narrow boxes, like 2 LC's stacked on top of one and other. You
could drop in a MPEG decoder card, a ethernet or modem card, a TV Tuner
card, or a Video capture card. These were super propriatary and the board
won't work in any other machine.
----- Original Message -----
From: <healyzh(a)aracnet.com>
To: <classiccmp(a)classiccmp.org>
Sent: Thursday, June 01, 2000 7:07 PM
Subject: Re: Please help ID this Mac board--I hope it's old enough for the
list!
on
Hello all,
I just came across this small PCI type board, labeled:
APPLE COMPUTER INC.
820-0510-A c1993
Are you sure it's a PCI board? If it's from '93 it's to old to be a PCI
board, as it was in late '95 that Apple switched from NuBus to PCI slots.
It also has a chip on it with the label:
341S0021
c 1983-93 Apple
^
|
|-----That's why I'm hoping it's old enough to qualify :-)
Anyway, on one side of the PCB it's got four large quad flat pack chips,
from Philips, TI, VLSI, and BT, and on the other side (with the Apple
labeled chip I mentioned earlier) it has two rows of 8 each Toshiba
TC528128BJ-80 RAM chips. On the back end it has a DB-15F connector (like
the old Apple monitor connector) and two round DIN connectors labeled "S
IN" and "S OUT" with 7 female contacts each.
It came in a box labeled DOS Compatibility Card for Macintosh, but I'm
beginning to think it's not.
I suspect you're right, no sign of a x86 CPU? It doesn't sound like ones
there.
Any clues are greatly appreciated!
Well, Apple has had a habit of putting parts of their systems on other
boards. I think what you've got here is the Video and Audio portion of a
68k based Mac. Taking a quick look at what was shipping in '93
http://lowendmac.net/time/1991-95.shtml I'd guess that it's from a Centris
or a Quadra.
Zane