28 Aug
2014
28 Aug
'14
5:26 p.m.
On 08/28/2014 04:58 PM, drlegendre . wrote:
That front panel must have really suffered a calamity,
and now I'm
suspecting the glue logic on the CPU board as well. So I've set up the
proto-tester again, and I'm running through all the chips on the CPU board
- it's mostly 8T97 aka 74LS367 tri-state buffers.
I have an idea of what might have happened. Does your 8800 still have
the front-panel switch carrying AC power?
A misplaced probe or dragging wire will create all sorts of mischief
that way...
--Chuck