*still* won't boot to the FORTH interpreter.
Argh!. There aren't that many chips in the machine...
I know...
I also know that the repairs to the through-hole plating for the main RAMs,
buffers and video RAMs are fine.
That leaves the possibility of:
A) Dead RAMs
B) Dead LS buffers
C) Dead ROMs
Didn't you have a relatively high -ve voltage on a data line? If so, you
might well have killed a buffer chip...
Where are you
in the country? I am not lending out any of my test gear (I
depend on it too much!), but if it's physcially possible for us to get
close together, I can have a quick look and wave some probes over it...
I'm in
Leeds, West Yorkshire.
Argh... Too far from me in London, then.
-tony