[Elecraft] K3 problems

[John]

I am receiving off reflector mails in re to my problem. I know others 
may be interested in the out come and or final resolution, even if 
it's due to a short between the headsets. 50 years of hamming, and 
it's still a challenge and fun.

At 08:54 AM 02/03/08, you wrote:
>Has anybody on the list seen either of these problems. This is a 
>copy of what I sent to the service dept.
>
>received K3/10 kit on Feb 28, Ser#501.
>
>Assembly went well. I have assembled two K2's and a K1 with no 
>problems. I used an anti static mat and wrist band throughout assembly.
>
>Problem#1
>
>Upon power up, the K3 will not recognize the KAT3. I receive the ERR 
>IO1 msg. I removed the KAT3, powered up and did not get the ERR IO1 
>msg. Reinstalled the KAT3, power up,  get the ERR IO1 msg. I went 
>through the configuration steps, no help. I tried switching between 
>ant 1&2, and received a ATU not installed msg. Assume a faulty KAT3?
>
>Problem#2
>
>This one is a booger. I have a horrible S8 to S9 plus noise (sounds 
>like line noise), at various places throughout the 1.8 to at least 
>25 mhz. It shows up on the 160 thru 40 hams bands, misses 30M, shows 
>up again on 20M and 17M, misses 15M, shows up on 12M, clean on 10 
>&6M. Using a non metallic tuning tool, if I put pressure on the 
>little mixer board I can cause it to go away or change. The 
>sensitive area is the component, looks like a transistor, three 
>leads, that looks like a pop rivet in the center. lower left on the 
>board when looking in from the front. I can't read a component 
>number on the board. If I put pressure on this component I can cause 
>the noise to go away, or shift off the freq I'm listening to. I 
>removed, inspected, and reinstalled the mixer board a couple of 
>times, no change. The noise must be being generated prior to the 
>roofing filters because changing the filters has effect on the 
>noise, DSP does too.
>
>There are no external antenna connections, the only connection to 
>the K3 is the power. The PS is a Astron and it powers my K2's and 
>K1, so it's not PS noise.
>
>If you want, I can phone you and let you listen to the noise.....
>
>Did I get the lemon?
>
>
>
>John
>k7up
>K3, almost, maybe
>K2's 2012, 2223
>K1 637
>Things are more like they are now then they've ever been before. 
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