Remove the RS232 board and wash it with clean water and a light brush. Make
sure it is well dried out and replace. I am 99% sure this will solve your
problem. Some boards had some fluid left on after manufacture and developed
this fault, mine included. Washing the board removes the film. I
Perhaps the board that the ACC connector is attached to needs to be
reseated? Any other ideas?
Check the 12V sense mod:
http://www.elecraft.com/K3/mods/KPA3_12V_Sense_Modification_Rev_B.pdf
Symptoms sound exactly like what you describe and I suspect your s/n
is well before the
Hi there, I have a K3 (s/n in the 400's with most upgrades done)
intermittantly turns it self on, and sometimes won't shut down (via
the front panel power switch).
I believe my PS is in good order, and nothing but antenna, PS and
paddle are connected to the back. It doesn't appear to be related
Jeff,
It sounds like the Remote Power ON signal (on the ACC connector) is
becoming active for some reason or another. If anything external to the
K3 or internal is pulling ACC pin 8 to ground, the behavior will be as
you describe. If you have a cable plugged into the ACC connector it
Hi Don, yes, I have checked this - there is nothing connected to the
ACC connector or the RS232 port when this occurs.
Perhaps the board that the ACC connector is attached to needs to be
reseated? Any other ideas?
Thanks,
Jeff
On Wed, Mar 9, 2011 at 16:51, Don Wilhelm w3...@embarqmail.com
Jeff,
Certainly you could try re-seating that board, but I would be more
inclined to look for something on that board which could cause a short.
Re-seating will often correct an open circuit condition, but a short to
ground is a different animal. If you find any bits of conductive
Hi Joe, yes, I actually do have that mod installed (it was done by
Elecraft last time the radio was back to meet it's maker).
Thanks,
-J
On Wed, Mar 9, 2011 at 17:08, Joe Subich, W4TV li...@subich.com wrote:
Perhaps the board that the ACC connector is attached to needs to be
reseated? Any
Ok Don, I'll take a looksy and see if anything is floating around in there.
73,
Jeff
On Wed, Mar 9, 2011 at 17:12, Don Wilhelm w3...@embarqmail.com wrote:
Jeff,
Certainly you could try re-seating that board, but I would be more inclined
to look for something on that board which could cause
8 matches
Mail list logo