[Boatanchors] Rotor problem

[Glen Zook]

The Yaesu G-1000SDX is unusual in the fact that the
rotor goes 450 degrees instead of the "normal" 360
degrees.  It has a 90 degree "overlap" at one end so
you don't have to reverse just to go a few degrees
past the "normal" stop.

The indicator is a "sorta" selsyn that mechanically
rotates the pointer.  However, the control circuitry
is solid-state in nature rather than mechanical.

If I have to troubleshoot the control box I can. 
However, it would be much easier if someone has run
into this problem before and can indicate just what is
happening.

I have rebuilt a HAM-M and a HAM-II several time over
the years including things like the rheostat.  My old
CDE AR-22 which I got used about 45 years ago is still
going strong on my "short tower" turning VHF yagis.  I
have replaced the starting capacitor in the control
box like 6 or 7 times over the years and lubricated
the motor assembly a couple of times.  But that rotor
is like a Timex watch, it "takes a licking and keeps
on ticking".

Glen, K9STH


--- K0DAN <k0dan at comcast.net> wrote:

This could be a sign of the rheostat ring on the rotor
going bad (not a good thing). But could also be a
symptom of its mate inside the control box also having
ailments (corrosion, dirt, etc.). I'm not an expert on
the Yaesu rotors but have had my share of problems.









Glen, K9STH

Website:  http://k9sth.com

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