[GreenKeys] Kleinschmidt TT-4C/TG not printing

[Kevin H. Phillips]

I have a follow-up to this story.  The printer is working pretty well 
now.  The problem ultimately was that one side of the loop was being 
grounded.  I was trading e-mails with Duncan Brown about this and after 
hearing my descriptions of the machine's behavior he suggested there 
might be a short somewhere; that either my terminal unit (an IRL 
FSK-1000 that I had never actually used) was not working or there was a 
problem with my cable.  I couldn't think of any reason there could be a 
short.  I started reading the FSK-1000's manual on the section about the 
loop jack.  It stated that the connector was a 3-conductor jack with the 
sleeve being chassis ground.  Then it dawned on me that the connector on 
the cable I was using, that I built several years ago, was only a 
2-conductor cable.  So, that's where the short was.  Duncan suggested 
that I try the Dovetron TU I have since it has two loop jacks:  one 
3-conductor and one 2-conductor.  Once I used used the 2-conductor jack 
then things started falling into place.  I may have built the cable for 
the Dovetron but it had been several years since I had used it.


The other thing is that the machine has 100wpm gears in it.  Last night 
I was able to connect it up to ITTY100.  It printed mostly fine.  I 
don't have a permanent Internet connection in the new shack yet but can 
get a wi-fi extender to pick up the signal from the house weakly.  It 
drops out often but it was good enough to establish that the machine 
seems to be working pretty well.  The 60wpm gears are with the machine 
so I will change those in soon.


The Range on the machine is right at 60 and the Armature is now around 
45-50.  I haven't tried adjusting any of that and this time I think I 
will leave well enough alone!


It turned out to be one of those simple issues that was hard to diagnose.


Thanks to everyone who offered advice.


73

Kevin

W5TTY