[GreenKeys] ok, first question...

[W2HX]

Thank you!

73 Eugene W2HX
Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos



From: greenkeys-bounces at mailman.qth.net <greenkeys-bounces at mailman.qth.net> On Behalf Of John, W9DDD
Sent: Monday, January 3, 2022 10:16 PM
To: greenkeys at mailman.qth.net
Subject: Re: [GreenKeys] ok, first question...


Opps forgot to give the like to the WD

https://www.navy-radio.com/manuals/tty/wd/wu9797wd.pdf





Looks like you have a WU 9797 wiring cabinet as opposed to a Teletype LESU.  Those jacks are normally used for metering to set the various line and bias currents, but I suppose you could key the line circuit from the proper jack, if the line circuit was completed elsewhere.

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The above comments or recommendations are SWAG. Use at your own risk.

John, W9DDD
On 1/3/2022 9:00 PM, W2HX wrote:
So the printer is running open even with a good/checked loop supply. The machine is an M28ASR. Here is a picture of the LESU in it (I don't know which version this is).
https://w2hx.com/x/TTY/ASR%20Pix/20220103_214634.jpg

You can see in this picture, the external loop is connected to the L J jack. I wonder if it was supposed to be in this jack. I can't recall the definitions (L J is probably loop jack?). Unfortunately I don't have any pictures of this from the last time it was running.

I also tried the LINE/TEST switch here:
https://w2hx.com/x/TTY/ASR%20Pix/20220103_214712.jpg
the red light lit up but the printer was still running open. I also confirmed, no voltage to any of the 4 selector magnet contacts.
I am hoping this is something simple. Wrong jack, open fuse, etc.

Any suggestions welcome.

73 Eugene W2HX
Subscribe to my Youtube Channel: https://www.youtube.com/c/w2hx-channel/videos









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