[Elecraft] K3 - stuck at MCU LD we upgrading software

[Ramon Tristani]

And don't forget to use the pin to secure the connector in place. Some people said it was not possible but I did it and it works just fine.

Sent from my iPhone

> On Jan 29, 2017, at 9:24 PM, Nr4c <nr4c at widomaker.com> wrote:
> 
> Hate to bring this up, but.....  Check the Power Pole connectors on K3 power cable. They should be pushed in tightly so that the contact lip curls over the spring. 
> 
> Sent from my iPhone
> ...nr4c. bill
> 
> 
>> On Jan 29, 2017, at 9:57 AM, James Walker <jimmy.walker at outlook.com> wrote:
>> 
>> I tried the direct wiring fix first. It didn’t change anything. And the voltage drop was radical. It would go down sometimes from 13 to 11 volts. The voltage drop was not indicated on the power supply volt meter. And remember, the big Astron power supply works fine with my IC-7300 and IC-746 off the Rig Runner strip. Maybe those rigs work better with the voltage variation. But something is going on here with either the power supple or the K3. I paid about $200 for the big power supply back in the 90’s. I think the little Astron supply (switching type) was less than $100. Maybe the difference is between transformers and switching technology. Anyway, my nightmare is over with a happy ending.
>> 
>> Jimmy
>> 
>> On Jan 28, 2017, at 10:27 PM, Don Wilhelm <donwilh at embarqmail.com<mailto:donwilh at embarqmail.com>> wrote:
>> 
>> Compare the voltage directly at your power supply terminals between receive and transmit.  If it stays up, then check your power cable to the K3 for adequate size wire and good connections.  If you have a DC power distribution device like the RigRunner, remove the K3 from it and connect direct from the power supply to the K3.
>> 
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