[R-390] Kilocycle knob moves megacycle change knob

[Jacques Fortin]

The differential drive is frozen ?

73, Jacques, VE2JFE

-----Message d'origine-----
De : R-390 [mailto:r-390-bounces at mailman.qth.net] De la part de Dan Merz
Envoyé : 3 avril 2017 14:59
À : r-390 at mailman.qth.net
Objet : [R-390] Kilocycle knob moves megacycle change knob

Hi, my 390a has symptom that moving the kilocycle knob also moves the
megacycle change knob. I haven't explored yet but it seems megacycle knob
itself is "gummy" and not working right so I haven't forced it much. This
receiver hasn't been used much in last 10 years but was working smoothly
probably a year ago. And had been cleaned and lubed with synthetic oil,
maybe 15 years ago. I suspect some shaft is sticking to cause this odd
symptom.  Where to look first?

Sent from my iPad Air2
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