Hello Paul,


Well I'm sorry to hear that. As an analogue guy, I don't much care for
PROMS and stuff. I can fix up anything analogue in good time, given a
schematic and a decent range of test equipment, but am off my territory
with digital stuff. But I'm still not sure what the problem is here.
Are you saying spares for the digital parts are hard to obtain or
rather that the encoding on those chips may be hard to reprogram?


Not sure yet what is broken. The analog sampling stuff and all seems to
work but is reads out garbage. The PROMs are really old style. They look
posh with gold plating and all but I guess that non-programmed spares
would be next to impossible to find. But again, maybe they are still ok.
Hopefully...

Regards, Joerg

http://www.analogconsultants.com