[GreenKeys] ASR33 debugging

[Bob Coggeshall]

Hi Folks

I've got an ASR33 whose selector magnet stays energized all the time with
nothing connected to the P2 Connector. I think the drive circuitry might be
blown out.

I've been trying to decipher where those components are from the schematics
http://tty.nerdology.org/schematics/
But they are notoriously clear as mud.

Any pointers on how to debug the selector magnet driver ? TIA
..c
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20190520/3c7d91ab/attachment.html>