[CQ-Contest] RE: [YCCC] TIC Ring Potentiometer Failure?

[John Allen]

Try running the rotor through it's entire rotation back and forth several
times.  I have this problem from time to time with a 1022 as far back as
1996 or earlier and this works for me.

73, KB!  John K1AE

John Allen  - PC Support Solutions www.pcsupportsolutions.com
PC House Calls: Computer HW/SW/Network debugging, installation, maintenance,
and upgrades
mailto:john at pcsupportsolutions.com  978 779-6189 M: 508 361-6229

-----Original Message-----
From: yccc-bounces at yccc.org [mailto:yccc-bounces at yccc.org]On Behalf Of
Jim Idelson
Sent: Sunday, November 28, 2004 12:25 AM
To: TowerTalk Post; CQ-Contest Post; YCCC
Subject: [YCCC] TIC Ring Potentiometer Failure?


Hi all,

Not far into the contest this weekend, we began to have trouble with the TIC
1022E [a 2003 unit]. It exhibits erratic readout and rotation behavior. The
load is an Optibeam 4-el 40m yagi. I recently tightened the drive motor to
eliminate slippage of the ring gear. I suspect something has happened to the
potentiometer that feeds back rotor position back to the controller. A
search
of the towertalk archives shows that there have been problems like this in
the
past [1996/1997]. I went up the tower to have a look this afternoon, but did
not see enything suspicious. There were no bad external wiring connections,
etc. I sprayed the drive shaft and what looks like the position pot shaft
with
contact cleaner from the outside. That did nothing, but I suspect I would
have
to disassemble the motor to get the spray into the right places.

Any suggestions?

Thanks,

Jim Idelson K1IR
email    k1ir at designet.com
web    http://www.designet.com/k1ir

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