[Elecraft] K2 glitch finally found!
John Wiener
jawod at fuse.net
Mon Apr 3 14:07:54 EDT 2006
Gary Surrency must be the most patient person on the earth. He just
emailed me twice within 1/2 hour of my questions.
I can now report that I HAVE LCD READOUT!
I had to replace all electrolytics on the Control Board to find my
error. I found that I soldered C45 (on the bottom of the board)
across pads of U6 instead of U8. I missed it on several rechecks
because it was new and not listed on parts placement diagrams in the
back of the manual.
I want to thank everyone who has helped me so far...Don Wilhelm comes
to mind.
Also, thanks to N0SS for pix of circuit boards.
Now, I have a question (of course).
My first resolder job was C13 on Control Board was, naturally, the
worst. On replacing the cap, I note that the pad is damaged on the
negative lead. I soldered over to an undamaged part (I hope
successfully).
My question: is the negative lead supposed to be directly to ground?
(perhaps soldered on the top of the board) I get about a meg of
resistance between the lead and ground.
Is this a problem?
Now to build the RF probe.
By the way, I am now a ham again ... after a hiatus of over 30
years. I just passed levels 1 thru 4 in one sitting over the weekend.
I didn't expect to pass the Extra but I studied like hell. The ARRL
books are fantastic. Couldn't have done it w/o them.
So, I'll be able to use a new call sign within a few weeks!
John
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