[Elecraft] Sudden K3 failure

[Jack Brindle]

Perhaps the RxAnt is selected? Easy to do, easy to miss. Done it more times than I care to remember.

73!
Jack, W6FB


> On Jul 26, 2019, at 7:42 PM, Mpridesti via Elecraft <elecraft at mailman.qth.net> wrote:
> 
> Sorry- did not fully see the problem 
> 
> The receiver is not working on any band not just 40. Sounds like band noise on all bands (sounds the same on every band).  Did a comparison with a second K3 to confirm the no receiver problem on all bands. 
> 
> Previously found by rotating some of the tmp connectors on the SYN boards, got the TX problem to go away. So this “no receive” seems unrelated. 
> 
> Regards,
> 
> Mark, K1RX
> 
> 
>> On Jul 26, 2019, at 9:57 PM, Barry Simpson <vk2bj at optusnet.com.au> wrote:
>> 
>> What about RX antenna ?
>> 
>> Barry  VK2BJ
>> 
>>> On Sat, 27 Jul 2019 at 09:54, Mpridesti via Elecraft <elecraft at mailman.qth.net> wrote:
>>> Confirmed that at an early stage of the trouble shooting.  No difference with either antenna selected (only one port has an antenna). 
>>> 
>>> Regards,
>>> 
>>> Mark, K1RX
>>> 
>>> 
>>>> On Jul 26, 2019, at 7:28 PM, Dennis Moore <dennis at mail4life.net> wrote:
>>>> 
>>>> Any chance you accidentally switched antennas on 40m?
>>>> 
>>>> Dennis NJ6G
>>>> 
>>>>> On 7/26/2019 13:21, Mpridesti via Elecraft wrote:
>>>>> Although I was able get the TX running again by merely doing a small twist to all the TMP connectors that were reachable with top cover removed and behind the front panel, unable to bring back the receiver front end on 40 m. I hear noise and very weak signals but nothing like the normal band noise and a hot receiver previously.
>>>>> 
>>>>> Now wondering if another part of the radio (tmp connectors) needs a small twist to break up oxidation. Not clear as to why just one band is affected. Any thoughts from this great resource?
>>>>> 
>>>>> Regards,
>>>>> 
>>>>> Mark, K1RX
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