From the repair reportProblems found: poor solder on R5 on KP3ARepair performed: Replaced R5 and adjusted for better solder on KPA3AK3 meets or exceeds all factory specifications.73Mike KC8WHSent from my Verizon, Samsung Galaxy smartphone -------- Original message --------From: Linda M <[email protected]> Date: 9/11/21 12:42 PM (GMT-05:00) To: "kc8wh.mh" <[email protected]>, David Sumner <[email protected]>, Lee <[email protected]> Cc: Elecraft Reflector - post <[email protected]> Subject: RE: [Elecraft] K3 loss of power (KPA3 100W) Please tell Where the Bad solder joint was. Thanks Ray WA6VAB K3 From: kc8wh.mhSent: Saturday, September 11, 2021 7:49 AMTo: David Sumner; LeeCc: Elecraft Reflector - postSubject: Re: [Elecraft] K3 loss of power (KPA3 100W) My K3S lost both power out and receive when set to 13 watts or more. Everything worked fine at 12 watts or below.It turned out to be a bad solder joint.Good luckMike. KC8WHSent from my Verizon, Samsung Galaxy smartphone-------- Original message --------From: David Sumner <[email protected]> Date: 9/11/21 9:15 AM (GMT-05:00) To: Lee <[email protected]> Cc: Elecraft Reflector - post <[email protected]> Subject: Re: [Elecraft] K3 loss of power (KPA3 100W) Lee, it may not be that bad. Check Config to make sure KPA3 shows “PA nor” — there are other causes of your symptom as well that others may be able to comment on. 73, Dave K1ZZSent from my iPhone> On Sep 11, 2021, at 8:35 AM, Lee <[email protected]> wrote:> > If I had to guess, I would say the finals are blown in my KPA3.> > If I advance the power knob, output is normal up to 12 watts. As soon as> the power is advanced to 13 watts, the power drops to near 0, perhaps 1/4> watt.> > Any help on troubleshooting?> > Assuming the finals are blown, is it possible to just return the KPA3 to> Elecraft for repair, rather than the K3 itself?> > Thanks for any help! Lee> ______________________________________________________________> Elecraft mailing list> Home: http://mailman.qth.net/mailman/listinfo/elecraft> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:[email protected]> > This list hosted by: http://www.qsl.net> Please help support this email list: http://www.qsl.net/donate.html> Message delivered to [email protected] ______________________________________________________________Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:[email protected] list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to [email protected] ______________________________________________________________Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:[email protected] This list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected]
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