[GreenKeys] fired up another of our model 28.. it ran ryry then key stuck...

[Cory Heisterkamp]

Ed, If you follow the key linkages you'll find they trip a universal bail that runs the width of the keyboard and is located just rearward of the "code levers". When this bail trips and rotates, it allows the "universal bail latch lever" to drop. This lever is pretty obvious, it's about midway centered left to right of the keyboard and is 90 degrees to the univ bail. 

When this latch lever drops, it does two things: 1. It drops down onto, and trips the 'code bar bail latch'...this initiates what I would call keyboard sampling (up to this point everything is actuated by the keypress) 2. It prevents the universal bail from resetting until the sampling cycle is complete.

If you lift up the bail latch lever the universal bail should return to upright via spring tension and your key should pop back up. Check this first. 

I'm mobile right now but I can mark up a picture if that would help. -Cory

On May 5, 2013, at 1:23 PM, COURYHOUSE at aol.com wrote:

> Cory - I hate to  say it...  the  28 I had in the 70s  for a brief  time I never  did anything to!    my  14  was the  one I  would  tear int  and diddle  with...
> after than... worked on 35s  in the old  days of the  computer business...   but  for the  life of  me  can not  remember a  fix  for this  problem.  Have  no dissected it... as  we are in the midst of  clearing out another  room at the building for  displays.
>  
> yea  it is the keyboard  key that is stuck  don...  the "R"
>  
> Any preemptive advice is appreciated before I dig  in!
>  
> Ed#  www.smecc.org
>  
>  
>  
> In a message dated 5/4/2013 8:01:31 P.M. Mountain Standard Time, coryheisterkamp at gmail.com writes:
> Ed, when you say 'the key stuck', do you mean the key on the keyboard stayed depressed or something in the print unit is "stuck"? -Cory
> 
> Sent from my iPad
> 
> On May 4, 2013, at 7:47 PM, COURYHOUSE at aol.com wrote:
> 
>> fired up another of  our  model 28.. it  ran did the ryryry  then key stuck!?  help?
>> what  should I check first?  Ed#
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