[Elecraft] K3 problems

[Ken Wagner]

John:
If you sent this info to <K3Support at elecraft.com>, I suspect that you 
will be hearing from someone very soon with help. If you didn't send it 
to that address, I suggest that you do.
73,
Ken K3IU
K3 #202

John 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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