Posted by
Don Wilhelm-4 on
Sep 04, 2007; 8:59pm
URL: http://elecraft.85.s1.nabble.com/K2-Low-output-during-initial-TX-alignment-tp452294p452299.html
JT,
The quickest and IMHO the easiest way to find the problem is to build up
the RF Probe (the parts were included with your K2 kit). Then turn the
manual to Preparing for Transmit Signal Tracing in the troubleshooting
appendix. Follow the steps until you find a place where you have
significantly lower RF voltage than expected - then *stop* because you
have located the failing stage.
Once you have found the failing stage, find it on the schematic and look
to see which components are used in that stage - check them all for
proper values and good soldering.
If that effort did not solve the problem, we can be of further help.
Right now, the list of things that could possibly be wrong is very long
and we could only offer wild guesses. Once narrowed to the failing
stage, the isolation of the failing part becomes much easier.
73,
Don W3FPR
JT Croteau wrote:
> On 9/4/07, John Graf <
[hidden email]> wrote:
>
>> One thing you might try is a relay reset.
>>
>
> Thanks John, this was one of the first things I tried. No luck. I've
> done most of the checks in the 155 section of the troubleshooting
> guide. I'm at a loss as everything appears to be fine.
>
> Back to it..
>
>
_______________________________________________
Elecraft mailing list
Post to:
[hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help:
http://mailman.qth.net/subscribers.htmElecraft web page:
http://www.elecraft.com