[Elecraft] K3 that has gone deaf

[Jerry Moore]

>> I do notice that if I touch some areas on the bottom board the signal 
>> does increase.
>>
Cold solder joint perhaps? 
If you tap the board does the signal follow the taps? E.G. it increases in level briefly then returns to it's previous level?
If you warm the board slightly with a hair dryer does it all of a sudden just start working? 

-----Original Message-----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On Behalf Of Jan Erik Holm via Elecraft
Sent: Friday, October 14, 2022 3:32 AM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K3 that has gone deaf

I have a K3 that has got just a little bit deaf.
It´s like this, on 28 MHz it´s about 17 dB down, on 24 MHz 13 dB, on 21 MHz 7 dB. 14 MHz and down just about nothing.
Guess it still can be D25. I will swap it with my second K3 and start to repair it tomorrow.

If someone has had anything similar it would be nice to know.

73 Jim SM2EKM
-------------------------------------------------------
Den 2022-10-13 kl. 01:49, skrev David Hachadorian:
> Hi George,
> 
> Maybe the second paragraph from Elecraft here will help:
> https://marc.info/?l=elecraft&m=145323127930319&w=2
> 
> 73
> 
> Dave Hachadorian, K6LL
> Yuma, AZ
> 
> On 10/12/2022 9:54 AM, George Fremin III wrote:
>> I have a K3 that has gone deaf.  It can bearly hear my XG1 at 50 uV 
>> plugged into either the RX or ANT-1 ports.
>>
>> It does not have an antenna tuner.
>>
>> I have removed KXV3 option and put jummpers in W1 and W2.
>>
>> It remains deaf.
>>
>> >From doing some reading I see that D25 could be the issue.
>> Is there a way for me to prove that or do I just need to replace D25 
>> to find out?
>>
>> I do notice that if I touch some areas on the bottom board the signal 
>> does increase.
>>
>> Thanks
>>
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