Hello all,
Reporting back a while after my last attempt to fix my Omni VI (see below).
The Omni sat here for a while waiting for me to have the gumption to attack the
problem again. Yesterday I finally pulled the PLL board again from it’s hidden
cave. My resolve was to go ahead and re-heat/re-solder all of the connections
on that board; one of the suggestions I received via email. Unlike the
experience shared below, back in January, this time the PLL has been rock
(lock) solid. Success!
Thanks for all the suggestions and help! I wanted to share ’the rest of the
story.’
73,
Jim AF3Z
P.S. Somehow now, when I push the CW botton to hear the sidetone, I get two
tones: the sidetone frequency and a second one. The frequency of the new tone
depends on the setting of the RIT. Very interesting ;-)
Jim Goudie — jagoudie@comcast.net
610 Kraybill Church Rd
Mount Joy, PA 17552
> On Jan 27, 2022, at 8:05 PM, Jim Goudie <jagoudie@comcast.net> wrote:
>
> Hello,
>
> [ I sent this a day ago…. and it never appeared, so trying again ;-). ]
>
> I have an option 3 Omni VI that has developed a gargley warbley wobbly
> intermittent sound heard on Tx and RX, and I also hear it on the 5-5.5mhz PLL
> signal. At times, that ‘noise’ seems to be affected by mechanical bumps and
> repositioning the chassis. So, I opened things up…. “exercised connectors,”
> cleaned up and re-soldered areas on the PLL board that looked suspicious, and
> didn’t find much else. Before going deeper, I decided to put it back
> together and see if my initial work had solved the problem.
>
> I was very encouraged for a while. I was even tweaking the alignment before
> planning to put it back in the case. But then…. it warbled again. It seems
> to be making the noise less often so far, but ...
>
> Any advice/experience with what might be wrong or how to proceed? There’s no
> direct access to the 5 mhz PLL board during normal operation… So… I’m open
> to suggestions…
>
> Thanks,
> Jim AF3Z
>
> Jim Goudie — jagoudie@comcast.net
> 610 Kraybill Church Rd
> Mount Joy, PA 17552
>
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