MODCOMP II Revisited...
cclist at sydex.com
Tue Jul 10 16:03:57 CDT 2007
On 10 Jul 2007 at 12:04, Lyle Bickley wrote:
>> So armed with a logic analyzer and scope, I began to debug the
MODCOMP - one
> chip at a time. After finding 20 or 30 bugs - ALL of which were TI chips - I
> finally "relented".
> I have now replaced about one hundred and fifty TI chips in the Modcomp's CPU
> and memory planes. I'm about 3/4 of the way through the process - and the
> MODCOMP is becoming very reliable. It will run basic memory diagnostics by
> the hour without failure.
Why not simply re-tin the pins on the TI chips? Shouldn't be too bad
if you've got a solder pot.
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