[TowerTalk] Weird Yaesu G-1000DXA

[K1TTT]

Measure the resistance between the motor circuit and pot circuit from the
connector in the shack, there is probably a low resistance path (500-5k
ohms) between them, this puts some of the motor voltage on the indicator
circuit while you are turning and causes indication like that.  Most likely
there is water in the connector at the tower or possibly in the rotor
itself.

David Robbins K1TTT
e-mail: mailto:k1ttt at arrl.net
web: http://wiki.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://k1ttt.net

-----Original Message-----
From: JPhillipp [mailto:jphillipp at earthlink.net] 
Sent: Saturday, January 28, 2012 01:30
To: towertalk at contesting.com
Subject: [TowerTalk] Weird Yaesu G-1000DXA

Hi all,

My Yaesu G-1000DXA rotator has started acting weird.

If I turn it clockwise, say to 180 degrees, the needle goes around to 180
degrees but when I take my finger off the button the needle jumps back to
150 degrees. This is fairly consistent, although occasionally it jumps back
less than 30 degrees and sometimes it doesn't jump at all.

When I turn it counterclockwise, the needle initially moves 10 or so degrees
clockwise, then starts around counterclockwise as it should. But when I take
my finger off the button, the needle continues on clockwise for another 10
or 20 degrees.

Checking the antenna, it appears to be pointing in whatever direction the
needle ends up pointing after all its gyrations.

Anyone ever had a G-1000 behave like that? Any suggestions as to whether the
problem might be in the control box or the rotator? Any help on what to do?

John
N6ZAE

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