Date   : Sun, 01 Feb 2004 17:55:22 +0000
From   : Jules Richardson <julesrichardsonuk@...>
Subject: Re: Domesday setup questions

> I'm afraid I can't offer any useful advice on the LVROM problems 
> except to say they are very temperamental.

Well I found *another* player yesterday, which I've been told is dead.
However, it does have a stable video output, so I should hopefully be
able to combine boards from the two to get a working unit. 

The latest find seems to be a later revision, with cleaned up boards
(not as many hacks) - although I haven't done too much digging yet.

Still waiting to pick up the supposedly-working player that someone said
they have in their loft.

> >  On the system that's currently running in the museum, the trackerball
> >plugs into a small module (branded "interfax 1986") which swaps some of
> >the pins around before it then plugs into the user port on the BBC. The
> >"new" system we got doesn't have this. Sound familiar to anyonw? Are we
> >missing one from the "new" setup, or shouldn't it be present on the old
> >one?

I found a copy of the proper BBC Master AIV manual yesterday - inside of
which it says that the system will work with mice/trackerballs using
either Marconi or AMX wiring. Helpfully it gives the pin connections for
both schemes - turns out that little module present on the museum's
system is just there to present a device using the AMX wiring as a
Marconi device to the BBC. In other words, for the Domesday setup it
isn't exactly useful...

cheers

Jules