Don:
A switch from VFO A to VFO B is unrelated to any pot sitting at a
switchpoint.
Yes, they are unrelated. Same thread, different message mentioned
noisy pots. I replied to both as they are both of interest here.
You should be looking for some other cause of this 'flakiness' - something
is causing the microprocessor to execute a routine that it should not - it
could be coming from a glitch on the pushbutton matrix, a bad solder joint
at the switch that is just now showing up, or even RF getting into the K2 -
these are just a few things immeditaely off the top of my head.
You might try loosening the microprocessor a bit and reseating it. It is
possible for slight corrosion to develop at the socket to IC pin pressure
connection, and the wiping action created by re-seating the socketed chips
can often make the problem disappear - it certainly will not hurt anything
to re-seat the uP.
If it happens again I might be able to get a feel for something I do
before that might bring it on (like VFO knob spin, then stop & perhaps
in a moment or two the power display comes up on its own), but since
the rig is being polled for frequency info about every second I think this
might be another AuxBus timing thing.
I gave everything socketed a push last time the covers were off & reseat
the CPU next time I'm in there.
73, VR2BrettGraham
> -----Original Message-----
>
> I now have the rig jumping from VFO A to VFO B, in addition to phantom
> displays of power level (the latter more likely to happen shortly after
> stopping spinning the VFO).
>
> These do _not_ necessarily happen during transmit, or during transition
> from transmit to receive or vice versa, so unlikely to be RFI.
>
> The VFO A to VFO B switch happened twice this morning - both
> times during period of receive & with no operator interaction
> with the rig.
>
> 73, VR2BrettGraham
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