[GreenKeys] HAL ST-6000 help needed

[Roy Morgan]

At 07:35 PM 4/28/2005, Greg Miller wrote:
>Hello all,
>    I'm trying to get a Hal ST-6000 up and running.... when I try to send 
> with the 28 and the 6000, ... the 6000 shifts to space (I think) and just 
> sits there.  Also, the TTY free-runs.


Greg,

I have a newly acquired ST-6000 here but have not gotten it fully hooked up 
yet.  (It is in ok shape and running right, though.)  I know only a little 
about it, but there is a "programming plug" on the back, maybe called the 
"Accessory Plug".  It's the biggest one with most contacts. That thing has 
to have the right jumpers installed for the mode of operation you intend 
(e.g. "Loop Sense" enabled).

>   BTW, I've already replaced all of the electrolytic and tantalum caps 
> (I've had a lot of bad experiences with tantalums!)

Did you get one in backwards??

>    Could the 28 have a problem?

As I understand it, the 28's keyboard and printer need to be in series for 
the ST-6000 loop sense feature to work.  It senses loop signals that are 
*not* generated in the ST-6000 and switches modes from receiver (drive the 
printer with loop current) to send (sense the loop current and make AFSK 
and logic signals for transmitting.)  Getting the 28 set up right may be as 
simple as putting the ASR's switch in the correct position, or similar with 
a KSR.

I'll be glad to  hear what you find out, since I expect to be running my 28 
KSR's here with the ST-6000.

Roy

- Roy Morgan, K1LKY since 1959 - Keep 'em Glowing!
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