Brian, If you have relays clicking and it attempts to tune, then the firmware chip is likely just fine. You said it failed after a storm, which gives me cause to believe that the two diodes in the wattmeter should be replaced. Put new 1N5711s in the D1 and D2 positions and I would believe the problem will go away.
Note that these diodes are sitting in the wattmeter section which hangs directly off the antenna jack, making them most vulnerable to static/lightning damage. Disconnect your rig from the antenna during a storm. 73, Don W3FPR > -----Original Message----- > > Any experts on KXAT1 debugging? > > Yesterday I had the KX1 in the car with the 20m hamstick and for > about half > the > day I was about to work Florida, Mass, Texas...with 2w and the KX1. I was > using the KXAT1 to tune my hamstick, even though I have the > hamstick adjusted > to 1.2 : 1 without the tuner. > > BIG storm comes along, I'm not running CW now, I'm driving and > listening to CW > and lots of static. So I shut off the rig and keep tooling on > down the road. > > About 20 mins later I pull into Riley Park in Greenfield IN and > and park so I > can play radio...except the KXAT1 is saying I am only putting out > .05 watts, > then sometimes maybe .09 watts...SWR is like 8:1 now. So I move > the car...I > am in the clear...nothing metal near me...same thing. huh. > > When I get home I take the rig in to the radio room and attach it > to the attic > dipole, that never fails. > > I put it in auto tune mode...on 40m...SWR reads 9:1 on the KX1 > but 1.2:1 on my > external meter. I take it out of auto tune...do a manual > tune...KXAT! says SWR > is 9.9:1 and power out is less than half a watt...on a 14.0v power supply. > > So I go through the ATU setting, no error code (showing E00). I yank the > KXAT1, jumper pins 1 and 3 on J7...which now makes it a KX1 without an > internal ATU. > _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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.htm Elecraft web page: http://www.elecraft.com
