[Elecraft] K3 - Display flashes "thr 4 OFF" intermittently

[Fred Jensen]

Much of the K3 functionality as a radio is analog on the main RF board 
[well, except for the DSP of course].  I believe that many [most?] of 
the signals on the Coveted Golden Connector Pins are digital chatter 
between the brains and the other parts of the radio that tell them what 
to do but don't affect the functionality.  i.e. it might go to the wrong 
band, or BAND +/- might affect the mode instead, but all of the radio 
still works fine.  If you are so inclined to do a little bench work, you 
might try removing and reseating those connectors a couple of times ... 
maybe with a light coat of DeOxit.

Good luck.  In the "Olden Days," you could almost always find the 
problem by looking in the corner of the chassis where the small fire had 
started.😉

73,

Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

Dave Fugleberg wrote on 11/8/2023 11:13 AM:
> I thought about that, Fred, but my serial number is in the low 8000s. 
> I assembled the kit. It came with the gold pins.
> Could still be a bad connection I suppose. I've found at least 4 
> different ways to trigger the behavior, but it doesn't seem to affect 
> any functionality.
>
> On Wed, Nov 8, 2023 at 1:04 PM Fred Jensen <k6dgwnv at gmail.com 
> <mailto:k6dgwnv at gmail.com>> wrote:
>
>     Has your K3 received the coveted Golden Connector Pins?  Mine [S/N
>     642] began doing things like that, especially on the BAND+/- and
>     MODE +/- buttons.  Pressing really hard would sometimes make it
>     work.  The K-POD proved to be a work around, but the new connector
>     pins on a trip to the factory for another problem solved it.
>
>     73,
>
>     Fred ["Skip"] K6DGW
>     Sparks NV DM09dn
>     Washoe County
>
>     Dave Fugleberg wrote on 11/8/2023 9:16 AM:
>>     Thanks Keith - I totally missed that in the manual, as it's been a long
>>     time since I've used the decode feature. I tried changing the threshold to
>>     Auto...now I get the same behavior as before, except when it flashes it
>>     says thr Auto.  So it's definitely showing me that menu setting, but I have
>>     no idea why.
>>     I should mention that the behavior does not occur every time. It happens
>>     nearly any time i use the REV button, but maybe only one of of every 4-5
>>     band changes will trigger it.  As noted, this happens sometimes when
>>     changing bands via CAT, so it's not just from poking the front panel.
>>     73 de W0ZF
>>
>>     On Wed, Nov 8, 2023 at 10:50 AM Keith Trinity WE6R<keith at elecraft.com> <mailto:keith at elecraft.com>
>>     wrote:
>>
>>>     That "thr  4" is from the TEXT DEC  settings.
>>>     Long press CWT/0 (zero) button to see the setting.
>>>     I would think it would not do anything if "OFF", but try setting the
>>>     upper to AUTO or something.
>>>     There is a ton of info in the manual...
>>>     Keith WE6R K3/K4 Tech
>>>
>>>
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