[Elecraft] KX3 reboot only on JT modes?

[Don Wilhelm]

Rich,

First check your power cables carefully for any sign of looseness.
If none found, try wiggling the KX3 2.1mm power plug to see if that 
induces the failure.  You may have a failed power jack.
Early KX3s did not have the power jack glued to the board and could fail 
(even with the right angle power plug).  The failure would be intermittent.

I don't think it has anything to do with your operating mode.

73,
Don W3FPR

On 3/21/2017 2:47 PM, rich hurd WC3T wrote:
> Okay, here's an odd one and I couldn't find any suggestions in the archives
> or using Google-fu.
>
> I can run any mode with my KX3/PX3/KXPA100 station with no incident except
> for JT modes; using WSJT-X, I will complete a Tx cycle and randomly the KX3
> will bounce (power off/power on.)
> 9 times out of 10, I'm operating at 3W.   I'll sometimes bump to 5.  To
> test this, I have also bumped it to 11 watts to kick the amp in and I get
> the same reaction; that is, sometimes (but not always) the station just
> decides it's had enough and the power bounces.   Power supply is a Samlex
> SEC-1223.