Re: PCB identifcation

On Thu, 27 May 2004 21:24:19 -0500, "tom mcclintock" <tomm@mgcap.com> wrote:

>Uh, you got all that from the pictures? :)

Elementary my dear Watson!

Ok, it's all conjecture, but I've worked on a lot of wire wrapped CPU boards in
my career and they all look very similar. It's like opening the hood of a car
and pointing to the main engine components. And like older cars, there was less
variation and it was a lot easier to point out the main CPU board components in
the past than it is now. Unless they used some PALs, [given time] you could
probably go through that board and pretty much figure out what each IC was,
though without the ROMs it'd be pretty much a waste of time. Even with the
ROMs, I'd have a tendency to take the emulation route.

>Won't know more details until the boards show up. As far as I can tell the
>boards are devoid of all ICs, so datecodes might be tricky.

And am I to assume you're not getting schematics with these?

>I *can* say with some certainty that it is not a prototype Demon sound
>board. I have schematics for the Demon sound board BTW.

Schematics? That's cool!

And yeah, I have a Demon board and know that isn't one, however it could have
been used to develop the software for the much simpler Demon soundboard. The
possible UART would have given them debugging capabilities the finished
soundboard doesn't have. But that really was a wild guess, there's way too much
ROM space for a sound card. Whatever this is, if it was arcade related, I'd
guess that it ran the game code.

-Zonn
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Received on Fri May 28 14:31:34 2004