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[TenTec] Omni vi+ optical encoder

To: <tentec@contesting.com>
Subject: [TenTec] Omni vi+ optical encoder
From: wb0cff@hotmail.com (Carl R. Gansen)
Date: Tue, 10 Aug 1999 17:16:14 PDT
Thanks for the input Pat;

I have read the operators manual and was familiar with
the operation of the drag.

In my case I had moved the knob out as a step in the
troubleshooting process so that the drag pads were not
touching and it was still stiff with a distinct rotational
spot that was even tighter.  After loosening the encoder
retaining nut (maybe 1/3 to 1/6 rotation at most) the encoder
turned smoothly again. I was then able to seat the knob so
that the drag pads barely touched down. I could easily adjust
the drag as desired from that point on.  The mechanism is
quite clever and works well when all is adjusted correctly.

For cases similar to this there may be degrees of recovery.
It is hard to imagine, but at worst case, I suppose it could be tightened to 
the point that there is a permanent deformation
that will not relax back.

>From: k4beh@juno.com
>To: wb0cff@hotmail.com
>CC: tentec@contesting.com
>Subject: Re: [TenTec] Omni vi+ optical encoder
To: <tentec@contesting.com>
>Date: Tue, 10 Aug 1999 18:17:05 -0400
>Hi TenTekkies,
>I haven't sent a rig in for any repair that would have required removal
>of the front panel/encoder, but I had to replace the encoder on either my
>Delta II or Paragon several years ago and I seem to recall a similar
>problem that turned out to be due to the knob fitting closer to the front
>panel because I didn't have as many threads showing in front of the front
>mounting nut; in other words the new encoder shaft didn't extend out as
>far causing the knob to be back farther and creating more drag.  I'm sure
>they have to disassemble the front to put on the new keypads during the
>option 3 upgrade.  Probably the technician just likes more drag than you
>do.  You can adjust the drag without removing the knob by holding the
>silver outer ring stationary and turning the rubber "grip"  CW or CCW.

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