Hi,
Due to a lightning strike very near my house (thank god nog IN my house) I have some equipment that needs repairment.
One is my Atari 850. It has a very strange defect: it does do RX, but no TX.
When I switch on a good Lantronix (The other one was dead too due to lightning) I get all the needed data on my screen. But as soon as I want to type something, it fails. With another 850 it works immediately. Also tried R2: on that defective 850, but that also fails.
Since I do not have schematics of atari 850 it is getting trial and error.
Perhaps someone an idea, or schematics?
Thanks in advance!