Last week I posted (in quite a state of despair) about the temporary
death of my KX1 (S/N 1601). Long story short was that I had most likely
shorted Q6 to the top case due to some metal burrs poking through the
countersunk hole for the nylon screw. I smelled an awful burning odor,
shut off the KX1 and found that I had burned the trace under R16 and R17.
By searching the archives of this list, I found a fellow builder who had
reported on the same problem (Denny, W7SNH).
http://marc.info/?l=elecraft&m=111269643608699&w=2Denny, as well as others on this list and the folks at
[hidden email] helped guide me through the repair process.
I've documented some of the work below, for those of you who like photos.
http://www.flickr.com/photos/shadle/sets/72157600964189359/Main lesson learned from this repair and experience was that it is super
important to put a 1.5A fuse inline with the positive lead of an
external battery. That may have limited damage to my PCB.
Thanks to the folks at Elecraft for getting replacement parts to me in
short order (received them today and finished my repair this evening).
Happy to report 3w out on 40m and 4w out on 20m with the DL1 at 12.8v in
from the gel cell (fused, of course). ;)
Thanks for all your help. Lesson learned.
-john W4PAH
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