[GreenKeys] 33 ASR Troubleshooting - keyboard works in local mode but not line, etc.

[Thomas Moss]

Wayne,

I have taken some pictures, they can be found at 
https://imgur.com/a/K9uWdRX

There are also some notes there. I have found that the Teletype which was 
running open in Line mode with Mike's adaptor installed will run closed 
when connected to the "Olivetti" interface.

I'll start mapping the pinouts shortly.

Regards,
-Tom

On Mon, 20 Jan 2020, WAYNE wrote:

> Date: Mon, 20 Jan 2020 16:47:00 -0500 (EST)
> From: WAYNE <teletypeparts at comcast.net>
> To: Thomas Moss <mosst at SDF.ORG>, greenkeys at mailman.qth.net
> Subject: Re: [GreenKeys] 33 ASR Troubleshooting - keyboard works in local mode
>      but not line, etc.
> 
> Thomas,
> 
> If the machines run closed in Local mode, then the trouble is in Line mode only. The SMD card, green resistor, etc would be good.
> 
> The 2nd machine that closes when you apply the 9 volt batt to pins 7 and 8 shows that the receive side of the Line mode is likely good.
> 
> You may have some after market stuff in your UCC-6. Certainly the Olivetti stuff in the pedestal is not factory.
> 
> Send me some pics of both machines UCC-6 taken from the side 45 degree angle and from the top. Also one of the Olivetti stuff in the pedestal.
> 
> An after market interface already installed will likely inhibit Mikes adapter from working.
> 
> Mikes adapter plugs into P2, but the Terminal Strip has connections that parallel P2's. See pic 3. "X" on the drawing is the Terminal Strip. P2 is marked
> on the drawing.
> 
> Go slow here but send the pics first so I can see what you have.
> 
> Best regards,
> 
> Wayne
> KB1FDW
> 
>

mosst at sdf.org
SDF Public Access UNIX System - https://sdf.org