[GreenKeys] Model 28 ASR short on current loop interface.

[Charlie Beck]

Hello,

I have a model 28 ASR wired in half duplex. I had been successfully using
it with an interface I am building until it stopped operating. I measured
the resistance of the loop and it's a dead short. After unpluging
evreything from the Electrical Service Unit there is still a short on the
loop. I checked the coils and they are not shorted. I am not
very knowledgeable on the workings oif these machines apart from the
basics. Is there anything that come to mind that might be the source of my
problem?

Thanks,
Charlie Beck
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