[GreenKeys] AN/UGC-143A teleprinter info/parts wanted - long shot

[Duncan Brown]

At 180 pounds (!), it is what the Navy would consider "portable" 
("anything that can be carried on a battleship").

The UGC-143 looks similar to the Space Shuttle teleprinter Curious Mark 
did a series on a few months ago - 
https://www.youtube.com/watch?v=7HihKMIVnbs
Initially, he refers  to it as a "Navy teletype", but later shows 
pictures of the AN/UGC-74 (which was more Army & Marine Corps)

A block diagram of the UGC-74 & UGC-143 would probably be pretty 
similar, but was there any connection between the two?  Or just two 
different manufacturers trying to solve the same problem?

Have fun,

Duncan,
K2OEQ


On 4/19/2025 2:33 PM, Nick England wrote:
> This is a circa 1988 machine I am trying to revive with not enough 
> technical info. To my surprise the control unit and the printer appear 
> to work - but not the keyboard.
> A description and photos of the beast are at
> http://www.navy-radio.com/tty/ugc143a.htm
>
> It, of course, uses multiple microprocessors - It will pass BIT 
> diagnostics except that evidently the printer Z80 isn't talking to the 
> keyboard Z80 so it doesn't think that the keyboard is actually plugged 
> in. I believe that the keyboard Z80 is alive because the one-line 
> display on the keyboard says PLEASE WAIT.
> I have an operation and troubleshooting manual which covers the 
> built-in test routines, but that stops at the "replace the keyboard 
> assembly" stage.
>
> So does anyone have a spare keyboard or a tech manual with schematics 
> that I could borrow?
> This is a very long shot, but you never know what someone has accumulated.
>
> Cheers,
> Nick England K4NYW
> www.navy-radio.com <http://www.navy-radio.com>
>
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