mojoehand wrote:
>> The other card is for the standard slot. Very likely it is an RGB card,
>> but would require at least the video signal (not present at the slot) to
>> work. I suspect J4 had a cable connected to some chip on the
>> motherboard. Or maybe J1 should be connected to the video signal.
> 
> Yes, as I said above, I was wondering if the 2-pin connector (J1) was
> for that purpose. As for J4, you may indeed be correct. Without some
> documentation or informed opinion from someone more knowledgeable, I
> am hesitant to just plug things in haphazardly I don't want to fry my
> IIe.

A very sound approach.

A lot of electronic equipment has been rendered junk by random
plugging.  ;-)

One of my (not) favorites was a boxed single-board computer, intended
to be operated on 12v, that someone "tried out" with 115vac!  ;-(

Destruction was so rapid that aside from a couple of chips with their
plastic tops detonated and a bunch of "ghost" components with little
beyond their leads left, there were no burn marks on the board!

-michael

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