#: 13649 S1/General Interest
24-Dec-91 20:09:38
Sb: #13645-#Dead CoCo3
Fm: Erich Schulman 75140,3175
To: Paul Rinear 73757,1413 (X)
I have done that (nothing connected) and the results are the same. I've tried,
based on another recommendation, popping out all my RAM chips and putting them
back in. Still didn't work. From what I've heard on Delphi the problem almost
has to be a dead 6809. I don't have a logic probe but I do have a very old
oscilloscope (it's older than I am). I too got a last CoCo 3 so getting
another one won't be quite as easy as it was even three months ago so I am
going to have to fix the one I do have or more than likely stay with my 4K
CoCo1 until such time that I have sufficient $$$$$$$$$$ for a PC. As it is my
CIS bill has dropped over 90% now that I can only use someone else's Macintosh
to get on so I should have the cash a little sooner if repair of my CoCo 3 is
unsuccessful [DAt this point I won't be too hopeful. Dealing with the 6809 is
by far my biggest hardware job ever. And I thought fixing my 'scope was a big
job when I was doing that.
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