[Elecraft] Sudden K3 failure

[Nr4c]

I would get some Deoxit and remove the KPA3 from the main board.  Apply minimal amount of Deixit to the connector pins and insert/remove the Amp about 10 or 15 times. Wipe pins with lint free tissue and re-apply Deoxit (use toothpick) and insert the amp firmly and reassembled the radio.  

Let us know what/when you solve this. 

Sent from my iPhone
...nr4c. bill


> On Jul 25, 2019, at 10:42 AM, Don Wilhelm <donwilh at embarqmail.com> wrote:
> 
> Mark,
> 
> While you may be correct about the TMP connectors, open the K3 and rotate the TMP connectors a bit to wipe away any oxidation.
> 
> If it continues to fail after that, email support at elecraft.com for further ideas on how to proceed.  Tell them what you have attempted so far.
> 
> 73,
> Don W3FPR
> 
>> On 7/25/2019 10:30 AM, Mpridesti via Elecraft wrote:
>> Interesting
>> Powered up radio again and worked fine again.  Within minutes failed again so I am suspecting the tmp connectors as suggested by K1XX (and others) and the SYM area.
>> Regards,
>> Mark, K1RX
>>> On Jul 25, 2019, at 9:40 AM, Mpridesti via Elecraft <elecraft at mailman.qth.net> wrote:
>>> 
>>> Appreciate all the suggestions
>>> 
>>> Will address later today and will advise
>>> 
>>> Regards,
>>> 
>>> Mark, K1RX
>>> 
>>> 
>>>> On Jul 25, 2019, at 8:24 AM, Mpridesti via Elecraft <elecraft at mailman.qth.net> wrote:
>>>> 
>>>> Yesterday while just listening to a SSB QSO, the receiver just went quiet and when I tried to transmit, got nothing.
>>>> 
>>>> Power setting was at 75 watts and varied properly but meter and external output monitor was showing nothing.
>>>> 
>>>> Thought the filters stopped passing RF.
>>>>