According to the schematics, those two double pots on the front panel are merely voltage dividers. They provide 0 to 5v signals to the front panel MCU which controls the function, eg: AF_GAIN. It’s possible the pot has developed a dropout right at the point where you usually set the AF level. Maybe turning the pot stop to stop a half dozen times will improve it?? Worth a try.
73, Brian, K0DTJ > On Nov 29, 2023, at 12:12, Pete Smith N4ZR <pete.n...@gmail.com> wrote: > > My 2400-serial number K3 has begun to have a sporadic receive problem, which > has gotten much worse recently. It's really weird. > > What happens is this - the receiver sporadically loses most of its audio > output level, until I move the AF pot a couple of degrees either way, at > which point it immediately restores the audio. Often, but not always, this > occurs right after a transmission (on CW), so I was initially suspecting a > failing relay, but the way it responds to a minute change in the AF level > setting makes me think something subtler. Any ideas? > > -- > 73, Pete N4ZR > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to huntin...@coastside.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
