Thank you very much Keith and Don. Until today I haven´t had time to review the possible failures. I have checked and the D37 is failing so I am going to replace both D36 and D37, what kind of diodes should I buy to replace them? I have also checked the rest of possible and failures and everything seems ok.
After about 100k QSO this is second fault, firts changed the pin in the back panel about the 12 V error problem. K3, great rig. Pedro, EA4KD K3 #188 -----Mensaje original----- De: [email protected] [mailto:[email protected]] En nombre de Keith Trinity WE6R Enviado el: martes, 11 de febrero de 2020 1:06 Para: [email protected] Asunto: Re: [Elecraft] K3 always 100 W It could be D36 & 37 on the RF board. Earlier ones (1st few thousand) had weak components. But any of them can fail and usually there is runaway power out. If that is not it, look for burned components under the KANT3 board around T4 or on the underside near D36 & 37 look for burnt traces. If it is older than about #5500, it could be front panel tin pin oxidation, replaced them with gold. Keith ______________________________________________________________ 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 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]
