K3 S/N 7081 VFO A Inop

[Russ W9RB]

Hello all,

I just finished building the K3 up to Test & Calibration. Unfortunately, VFO A is not responding at all. I double checked and the encoder was plugged in correctly. I also verified that the VFO lock is not on. Everything was built with an ESD mat and strap.

So I guess the next step is to swap encoders to see if the problem follows the encoder?
If this is the case, I am trying to determine just how far I have to disassemble the unit to be able to do this. I'm not thrilled about having to undo my assembly, so if there are any other checks I can do...

I had high hopes of checking into the net this afternoon, but guess that will have to wait unto the next Sunday I am off work (hopefully this year some time :)

73, Russ W9EL

[Russ W9RB]

OK, I found the answers.
First, I found front panel remove/ install procedure in the KDVR3 manual.
Then, when I proceeded to swap the encoders, I discovered that encoder A pins had slid just under the socket and not inserted. Oops! They looked just fine looking from the top with a flashlight :)
Completed setup and checked into the Elecraft net. S/N 7081's first contact.

73, Russ W9EL

[Don Wilhelm-4]

Russ,

It is not difficult at all to swap the encoders.  Remove the Front Panel
assembly and then remove the DSP board from the back of the Front
Panel.  That will reveal the rear of the encoders.   Of course, you will
have to remove the knobs and nuts,  After that the encoders will pull
right out.  Less than a 20 minute job unless you work very slowly.  
Since you built the K3, it will 'come back to you' after you are
part-way along with the disassembly.  Don't forget to remove the right
side panel and remove the screw from the 2D connector that keeps the
front panel board from sliding over its screwhead.

73,
Don W3FPR

On 1/6/2013 12:18 PM, rboutell wrote:

> Hello all,
>
> I just finished building the K3 up to Test & Calibration. Unfortunately, VFO
> A is not responding at all. I double checked and the encoder was plugged in
> correctly. I also verified that the VFO lock is not on. Everything was built
> with an ESD mat and strap.
>
> So I guess the next step is to swap encoders to see if the problem follows
> the encoder?
> If this is the case, I am trying to determine just how far I have to
> disassemble the unit to be able to do this. I'm not thrilled about having to
> undo my assembly, so if there are any other checks I can do...
>
> I had high hopes of checking into the net this afternoon, but guess that
> will have to wait unto the next Sunday I am off work (hopefully this year
> some time :)
>
> 73, Russ W9EL
>
>
>
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/K3-S-N-7081-VFO-A-Inop-tp7568317.html
> Sent from the Elecraft mailing list archive at Nabble.com.
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html