On Thu, Dec 17, 2020 at 11:30 AM mcdonnell.junk <mcdonnell.j...@comcast.net> wrote: > > I am an electrical engineer. That doesn't mean I am an expert in all things > (or even a lot of things), but my home lab is very well equipped with various > scopes, logic analyzers, eeprom and various other programmers, an eeprom > emulator, processor emulators, hot air rework station, electrical desoldering > pump, microscopes, hakko temp controlled irons, etc.... and at work I have > access to pretty much anything. > > The problem is sometimes my impatience, not knowledge. :) > > Point is that I do have the right tools and experience to work on this stuff. > But the M100 is a new computer for me. I was a Commodore kid. > > If I break traces, I am not freaked out by that. I can repair them properly. > Of course, I would rather not! > > Power supply rails were fine, btw. Of course that doesn't mean previous owner > didn't plug in 12V or reverse polarity adapter and just didn't tell me. I > bought it broken along with the working unit. But power supplies are stable > at the moment. >
Cool! I never know what a person's comfort level w/ rework is when the post asking for repair tips. In case you weren't aware, the M100 service manual is excellent for troubleshooting issues w/ the machine. https://archive.org/details/TandyM100ServiceManual
