Thank you both! Is adjusting the 10-turn stop something that would require removal of the crystal oscillator or RF modules? -Alex
On Thu, May 1, 2025 at 10:53 AM Barry <n4...@knology.net> wrote: > Hi Alex, > > There are a series of "wings" on the shaft that determine where the stop > point should be at both ends of rotation (I think those limit the shaft to > just a tad over 10 turns end-to-end). If all of those are completely > stopped against each other, then that would cause this and the solution > would be to loosen the clamp and adjust those stopping points. If the stop > point is reached but those "wings" can still be rotated slightly with your > fingers (be aware there is power near that point so best to unplug the > radio to try this), then something else might be a problem but I think the > 10-turn stop is the problem. > > Good luck, > Barry - N4BUQ > > > Hi All, > > > > I have an R-390 that has recently been restored. It is performing very > > well, with one exception... > > > > Last night I attempted to tune up through all of the megahertz bands all > > the way to 32 MgHz for the first time. I got to '30' on the megacycle > > change knob, and the knob wouldn't rotate any further to 31. I could get > > it to go slightly towards 31, but it was obviously stuck and I didn't > want > > to attempt to jam it. > > > > What would potentially be the cause for this being stuck? > > > > Thanks, > > -Alex > > ______________________________________________________________ > > R-390 mailing list > > Home: http://mailman.qth.net/mailman/listinfo/r-390 > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:R-390@mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ R-390 mailing list Home: http://mailman.qth.net/mailman/listinfo/r-390 Help: http://mailman.qth.net/mmfaq.htm Post: mailto:R-390@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
