[TenTec] ORION vfo encoder symptoms

[A R]

Mike and Barry:

 

Yikes! No "MULTI" control would be a definite PITA. 

Given the symptoms, the connector interface integrity sure makes a whole lot more sense than a problem with the encoder itself. I'm off to find some CircuitWorks conductive silver grease. 

 

Thanks for the great info!

 

Allen--W7GIF


----- Original Message ----- 

From: Barry N1EU<mailto:barry.n1eu at gmail.com> 

To: Discussion of Ten-Tec Equipment<mailto:tentec at contesting.com> 

Sent: Monday, February 16, 2015 5:04 PM

Subject: Re: [TenTec] ORION vfo encoder symptoms



My thoughts/opinions:

TT changed the encoder because the original encoder manufacturer stopped
making it.

I believe your intermittent encoder operation is due to bad contact
conductivity in the encoder cable connector.  I think the best solution is
a light application of conductive silver grease to the connector contacts,
as described under the RIT encoder fix at
http://www.tentecwiki.org/doku.php?id=565<http://www.tentecwiki.org/doku.php?id=565>

Barry N1EU



On Mon, Feb 16, 2015 at 11:27 PM, A R <raf_3 at msn.com<mailto:raf_3 at msn.com>> wrote:

>    My recently acquired ORION 565 is one great radio, but has one annoying
> trait. Upon power-up, the panel-mounted VFO A encoder ignores rotational
> travel over about a 180 degree arc. The dead area of arc is consistently
> over the same rotational position, and independent of "STEP" settings.
>
> As the radio warms up, the "dead" arc diminishes, and after about two
> hours of power-up, output of the encoder is good over the full 360 degrees
> of rotation. The 302 remote encoder provides output over the full arc
> rotation, from power-up. If the problem didn't vary with temp (or operating
> time), I'd suspect it was due to a problem with the encoder aperture disc.
> The encoder module is sealed up pretty well, and disassembly of the boards
> from the front panel is required for encoder removal, so I haven't tried
> opening it to inspect the aperture disc for contamination or feathering at
> the aperture edges (or, possible problems with solder connections of the
> encoder on the keypad board).
>
>
>
> This is an early production 565 , and I understand that TT later used a
> new/improved vfo encoder. Anyone recognize the symptoms as described, and
> the solution? Did the early production 565 encoders suffer from problems as
> described, which led to introduction of the new/improved encoders?
>
>
>
> Thanks in advance for opinions or suggestions.
>
>
>
> 73,
>
> Allen--W7GIF
>
>
>
>
>
>
>
>
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