[GreenKeys] Model 15/19 wiring

[Kevin H. Phillips]

Since I got the W.U. Model 19 printing pretty well my next hurdle is 
getting it to print when I type on the keyboard.  The keyboard is in 
series with the loop.  When I press a key the clutch on the keyboard 
rotates but the printer does not print.  I believe the issue is with the 
wiring between the keyboard and base because I have tried several 
different things such as swapping a keyboard from a known working 
machine, swapping a typing unit from a known working machine, swapping 
the keyboard from the known "non-working" machine into the known working 
machine.  I have also tried jumpering various contacts on the terminal 
strips.


The "non-typing" machine does not have the Send/Rec./Break switch 
mechanism installed.  I also notice that if you are looking at the 9 
finger stock tab contacts on the keyboard (from the front) the one on 
the far left does not have a wire connected to it.  I can't detect any 
other non-standard wiring or anything that seems obviously to have been 
altered.  The machine is on a 7904-A table.


Any ideas or suggestions would be appreciated.


73

Kevin

W5TTY


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