[GreenKeys] Model-33 ASR Keyboard

[Troy Peterson]

Hi All,

I've been working on repairing and restoring a Model 33 ASR and have mad 
a few posts to this list about it. I started with the keyboard because I 
knew that had a few serious issues to address that could scupper the 
project. I'm pleased to say that with a lot of help from this list 
(especially Wayne) I've managed to get my keyboard working! At least I 
think it is. It looks good to me visually and responds as I would expect 
it to. I have not done an electrical test of any sort on it though... 

And obviously the rest of the machine isn't ready to test it with yet.   
Does anyone know how I can test it electronically? Is there a common pin 
on the connector and 8-bit pins that I  can check continuity on with a 
multimeter to confirm the right bits are set?

Here's a video of the finished keyboard in operation.

https://youtu.be/UUe-JzQcIpk

And I'll attach a few pictures...

The main issue was that when I received it the master reset lever was 

not in it... And it was missing the compression springs on the contact 
end.   It was a very fiddly job getting the reset lever in and all of 
the springs on correctly, but I managed to do it in about 8 hours of 
working on it... I'm very pleased with myself. Next thing to do I guess 
is the main printer section or the electronics.

You might also notice on my keyboard there is an extra button labelled 
"RUN OUT" in the top left corner. That was added by a previous owner and 
I have no idea what it does. It is wired into two contacts on the 
keyboard connector. If anyone has any ideas on what this was for please 
let me know.


Cheers,
Troy
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