Re: [Elecraft] K3 turns it self on, won't turn off

2011-03-10 Thread Ian Maude
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

Re: [Elecraft] K3 turns it self on, won't turn off

2011-03-10 Thread Joe Subich, W4TV
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

[Elecraft] K3 turns it self on, won't turn off

2011-03-09 Thread Jeff Kinzli N6GQ
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

Re: [Elecraft] K3 turns it self on, won't turn off

2011-03-09 Thread Don Wilhelm
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

Re: [Elecraft] K3 turns it self on, won't turn off

2011-03-09 Thread Jeff Kinzli N6GQ
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

Re: [Elecraft] K3 turns it self on, won't turn off

2011-03-09 Thread Don Wilhelm
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

Re: [Elecraft] K3 turns it self on, won't turn off

2011-03-09 Thread Jeff Kinzli N6GQ
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

Re: [Elecraft] K3 turns it self on, won't turn off

2011-03-09 Thread Jeff Kinzli N6GQ
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