[Elecraft] K3 Sub Receiver Problems

[Guy Olinger K2AV]

You need to call Elecraft Tech Support on this problem before you go
further.  They don't live on the reflector.  Someone knowledgeable can walk
you through a series of steps to isolate what is going on.  There are too
many possibilities to work this efficiently over email.

Do not go soldering things until you have called Elecraft.  It could easily
be something you misread in the manual, or a misconception about how it
works with the components you have.  Or it can be an improperly seated tiny
plug on those coax leads.  Everyone has done that.  There is a certain
"feel" to it when it is really seated.

Frankly 9 S units usually means that something is not connected at all.  9
S units down means all you are hearing is capacitive coupling.  BOTH the
cable connections AND the state of the RX hold button must match.  But
there is a pile of possibilities.

Call Elecraft and have them walk you through.

73, Guy.

On Thu, Jan 10, 2013 at 11:32 PM, KGØUS <kg0us at sbcglobal.net> wrote:

>
>
> "That's why I took the effort to measure the resistors.  R43 is 51 Ohm, R37
> and R45 are both 63 Ohm."
>
> From what you measured above, I can tell you that your R43, R37, and R45
> resistors are all good.
>
> Please take a closer look at the schematic.  When you measure R43, you are
> actually measuring R43 in parallel with R37 and R45 in series.  This would
> be 68 || (100 + 100) = 50.74 Ohms.
>
> When you measure R37 or R45, you are actually measuring 100 || (68 + 100) =
> 62.68 Ohms.
>
> I plan to make a few more measurements this weekend and was hoping for some
> guidance from the experts.  I have been getting the cold shoulder here.
>
> I will make a few more measurements here but I have limited resources at
> home.  I have unlimited resources at work but I am not allowed to work on
> home equipment.
>
> I have four choices:
> 1.)  Try to fix it myself but I will need to ask a friend if I can use his
> surface mount solder station.
> 2.)  Do nothing, remove it, or live with it.
> 3.)  By another subreceiver kit for $600.
> 4.)  Send it in for repair.
>
> Good luck,
>
> Dave KG0US
>
>
>
>
>
> --
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> Sent from the Elecraft mailing list archive at Nabble.com.
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