[Elecraft] k3 ERR DSE

[John McBee]

On 2/10/2015 9:27 PM, John McBee wrote:
> I was getting this error from the kxr3 menu when changing from ATU 
> port to BNC port I have gotten this error a few times since I have 
> installed the kxr3.  But all usually works.  The book said to try to 
> reload the dsp 1 firmware and dsp2 firmware, so I opened up the k3 
> utility and tried to reload all firmware.  The k3 errored out on 
> loading firmware and display said MCU LD and lost com port 
> communications.   I could not turn off k3 by pwr button so turned off 
> pwr supply, now can't get the rig to reset buy holding the shift-lo 
> button in while pwr up k3.  So can't load new firmware yet.  Any 
> suggestions..  I will keep looking in manual for a reset option.
>
> Thanks
> John
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I have read the MCU load error under K3 Firmware Self-Test and what to 
do in an error of loading MCU but I have lost communications with the k3 
with my serial to usb cable that I normally use and have tried a serial 
to serial cable to another computer that still has a serial port- DB9 
connections, I have also changed the baud rate to 38400 which it was 
before it crashed.  No luck with any of these actions.  Any help would 
be great.

John