Thanks, Jim…
I appreciate all the clues and help. As I start to dig in some more, all the
background received here helps me pay attention… and hopefully “see” what I
need to see.
Thanks!
Jim AF3Z
Jim Goudie — jagoudie@comcast.net
610 Kraybill Church Rd
Mount Joy, PA 17552
> On Jan 28, 2022, at 2:53 PM, Cubbie <jstanisi@comcast.net> wrote:
>
> Hi Jim, not sure I can help troubleshoot your current problem but,
>
> I had some trouble with the PLL board on my OMNI VI + which turned
>
> out to be a solder bridge from the factory. Only way I found it was to
>
> make extension cables because I had to use a "RF sniffer" to find the
>
> noise while the radio was on. I used these:
>
> https://www.amazon.com/female-jumper-Dupont-Arduino-Breadboard/dp/B01FDD3LJA
>
> and epoxied the black connectors together on both ends. You need two 3 wire
> ones
>
> and one 2 wire one. Good luck.....Jim WGØD
>
> On 1/28/2022 11:00 AM, tentec-request@contesting.com wrote:
>> Send TenTec mailing list submissions to
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>>
>> Today's Topics:
>>
>> 1. Omni VI opt 3.... PLL problem (Jim Goudie)
>> 2. Omni VI opt 3.... PLL problem (Peter Bertini)
>> 3. Re: Omni VI opt 3.... PLL problem (Jim Goudie)
>> 4. Re: Omni VI opt 3.... PLL problem (gerd Groos)
>> 5. Re: Omni VI opt 3.... PLL problem (Jim Goudie)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Thu, 27 Jan 2022 20:05:35 -0500
>> From: Jim Goudie <jagoudie@comcast.net>
>> To: Ten-Tec List <tentec@contesting.com>
>> Subject: [TenTec] Omni VI opt 3.... PLL problem
>> Message-ID: <B8A77BA3-9BB2-4567-8412-2AAD8B5CAA1F@comcast.net>
>> Content-Type: text/plain; charset=utf-8
>>
>> 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
>>
>>
>>
>> ------------------------------
>>
>> Message: 2
>> Date: Thu, 27 Jan 2022 22:32:22 -0500
>> From: Peter Bertini <radioconnection@gmail.com>
>> To: tentec@contesting.com
>> Subject: [TenTec] Omni VI opt 3.... PLL problem
>> Message-ID:
>> <CA+uDY2T6UwvdWZVJO2H-NdqFQoEg0kK-x0Yi_isTLRtXp9e3qQ@mail.gmail.com>
>> Content-Type: text/plain; charset="UTF-8"
>>
>> First, does it only on a few select bands, or on all bands? If one or two
>> bands only chances are it is a hetrodyne crystal that has aged and is going
>> out of lock. Some of those crystals are used one more than one band. One
>> clue is that the rig will work well when cold, and then act up when the
>> pizza oven that encloses those PLL boards gets hot. TenTec provided no
>> airflow, and there are two pass regulator transistors on the aluminum lid
>> that adds to the heating problem. There is a procedure for setting the
>> lock range for each crystal that requires using a good scope to monitor a
>> point on the uP control board. I've fought that problem on three or four
>> Omni VI rigs I own. Pete
>>
>>
>> ------------------------------
>>
>> Message: 3
>> Date: Thu, 27 Jan 2022 23:28:40 -0500
>> From: Jim Goudie <jagoudie@comcast.net>
>> To: Ten-Tec List <tentec@contesting.com>
>> Subject: Re: [TenTec] Omni VI opt 3.... PLL problem
>> Message-ID: <6A62D6A7-7512-46B9-9198-ACF425166CCA@comcast.net>
>> Content-Type: text/plain; charset=utf-8
>>
>> Thanks, Pete?
>>
>> I didn?t check all the bands carefully or systematically. I heard it on
>> several. I?ll go back and be more careful about it. And yes, it seems to
>> happen after it has been on for a while?. but not very long; 5 minutes or so?
>>
>> If it gets too involved, with the crystals and setting the lock range, etc.,
>> I may have to punt. My experience and my ?bench? may not be up to the
>> challenge. We?ll see.
>>
>> Thanks very much for your input. I?ll save all the help I get and refer to
>> it as the project progresses. Fortunately, I have my old trusty 544, Triton
>> IV digital, that I bought used in 1982 ;-). It is enjoying being my #1
>> radio again? and doing quite well.
>>
>> 73!
>> Jim AF3Z
>>
>>
>> Jim Goudie ? jagoudie@comcast.net
>> 610 Kraybill Church Rd
>> Mount Joy, PA 17552
>>
>>> On Jan 27, 2022, at 10:32 PM, Peter Bertini <radioconnection@gmail.com>
>>> wrote:
>>>
>>> First, does it only on a few select bands, or on all bands? If one or two
>>> bands only chances are it is a hetrodyne crystal that has aged and is going
>>> out of lock. Some of those crystals are used one more than one band. One
>>> clue is that the rig will work well when cold, and then act up when the
>>> pizza oven that encloses those PLL boards gets hot. TenTec provided no
>>> airflow, and there are two pass regulator transistors on the aluminum lid
>>> that adds to the heating problem. There is a procedure for setting the
>>> lock range for each crystal that requires using a good scope to monitor a
>>> point on the uP control board. I've fought that problem on three or four
>>> Omni VI rigs I own. Pete
>>> _______________________________________________
>>> TenTec mailing list
>>> TenTec@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/tentec
>>
>>
>> ------------------------------
>>
>> Message: 4
>> Date: Fri, 28 Jan 2022 10:22:15 +0100
>> From: gerd Groos <df9ts.cw@gmail.com>
>> To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
>> Subject: Re: [TenTec] Omni VI opt 3.... PLL problem
>> Message-ID: <235352E8-B19E-4CDD-975D-AA9454537185@gmail.com>
>> Content-Type: text/plain; charset=utf-8
>>
>> Pete,
>>
>> could you share the procedure you mentioned? I have a OMNI VI that I love.
>> PLL board has the two PLL circuits out of sync, I have no continous
>> frequency output from VFO anymore.
>> Checked and tried a lot, hardware seems ok, just need to know how to do the
>> adjustments.
>>
>> BR
>>
>> Gerd DF9TS
>>
>>> On 28. Jan 2022, at 05:28, Jim Goudie <jagoudie@comcast.net> wrote:
>>>
>>> Thanks, Pete?
>>>
>>> I didn?t check all the bands carefully or systematically. I heard it on
>>> several. I?ll go back and be more careful about it. And yes, it seems to
>>> happen after it has been on for a while?. but not very long; 5 minutes or
>>> so?
>>>
>>> If it gets too involved, with the crystals and setting the lock range,
>>> etc., I may have to punt. My experience and my ?bench? may not be up to
>>> the challenge. We?ll see.
>>>
>>> Thanks very much for your input. I?ll save all the help I get and refer to
>>> it as the project progresses. Fortunately, I have my old trusty 544,
>>> Triton IV digital, that I bought used in 1982 ;-). It is enjoying being my
>>> #1 radio again? and doing quite well.
>>>
>>> 73!
>>> Jim AF3Z
>>>
>>>
>>> Jim Goudie ? jagoudie@comcast.net
>>> 610 Kraybill Church Rd
>>> Mount Joy, PA 17552
>>>
>>>> On Jan 27, 2022, at 10:32 PM, Peter Bertini <radioconnection@gmail.com>
>>>> wrote:
>>>>
>>>> First, does it only on a few select bands, or on all bands? If one or two
>>>> bands only chances are it is a hetrodyne crystal that has aged and is going
>>>> out of lock. Some of those crystals are used one more than one band. One
>>>> clue is that the rig will work well when cold, and then act up when the
>>>> pizza oven that encloses those PLL boards gets hot. TenTec provided no
>>>> airflow, and there are two pass regulator transistors on the aluminum lid
>>>> that adds to the heating problem. There is a procedure for setting the
>>>> lock range for each crystal that requires using a good scope to monitor a
>>>> point on the uP control board. I've fought that problem on three or four
>>>> Omni VI rigs I own. Pete
>>>> _______________________________________________
>>>> TenTec mailing list
>>>> TenTec@contesting.com
>>>> http://lists.contesting.com/mailman/listinfo/tentec
>>> _______________________________________________
>>> TenTec mailing list
>>> TenTec@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/tentec
>>
>>
>> ------------------------------
>>
>> Message: 5
>> Date: Fri, 28 Jan 2022 10:23:49 -0500
>> From: Jim Goudie <jagoudie@comcast.net>
>> To: Ten-Tec List <tentec@contesting.com>
>> Subject: Re: [TenTec] Omni VI opt 3.... PLL problem
>> Message-ID: <82B248A8-F193-4BBC-98B8-6269A332159C@comcast.net>
>> Content-Type: text/plain; charset=utf-8
>>
>> Yes, Pete. I?d appreciate receiving that procedure as well. It makes a
>> lot of sense? and I feel more encouraged to give it a try! My problem
>> definitely only shows up after the rig warms up?
>>
>> Thanks again!
>> Jim AF3Z
>>
>> Jim Goudie ? jagoudie@comcast.net
>> 610 Kraybill Church Rd
>> Mount Joy, PA 17552
>>
>>> On Jan 28, 2022, at 4:22 AM, gerd Groos <df9ts.cw@gmail.com> wrote:
>>>
>>> Pete,
>>>
>>> could you share the procedure you mentioned? I have a OMNI VI that I love.
>>> PLL board has the two PLL circuits out of sync, I have no continous
>>> frequency output from VFO anymore.
>>> Checked and tried a lot, hardware seems ok, just need to know how to do the
>>> adjustments.
>>>
>>> BR
>>>
>>> Gerd DF9TS
>>>
>>>> On 28. Jan 2022, at 05:28, Jim Goudie <jagoudie@comcast.net> wrote:
>>>>
>>>> Thanks, Pete?
>>>>
>>>> I didn?t check all the bands carefully or systematically. I heard it on
>>>> several. I?ll go back and be more careful about it. And yes, it seems to
>>>> happen after it has been on for a while?. but not very long; 5 minutes or
>>>> so?
>>>>
>>>> If it gets too involved, with the crystals and setting the lock range,
>>>> etc., I may have to punt. My experience and my ?bench? may not be up to
>>>> the challenge. We?ll see.
>>>>
>>>> Thanks very much for your input. I?ll save all the help I get and refer
>>>> to it as the project progresses. Fortunately, I have my old trusty 544,
>>>> Triton IV digital, that I bought used in 1982 ;-). It is enjoying being
>>>> my #1 radio again? and doing quite well.
>>>>
>>>> 73!
>>>> Jim AF3Z
>>>>
>>>>
>>>> Jim Goudie ? jagoudie@comcast.net
>>>> 610 Kraybill Church Rd
>>>> Mount Joy, PA 17552
>>>>
>>>>> On Jan 27, 2022, at 10:32 PM, Peter Bertini <radioconnection@gmail.com>
>>>>> wrote:
>>>>>
>>>>> First, does it only on a few select bands, or on all bands? If one or two
>>>>> bands only chances are it is a hetrodyne crystal that has aged and is
>>>>> going
>>>>> out of lock. Some of those crystals are used one more than one band. One
>>>>> clue is that the rig will work well when cold, and then act up when the
>>>>> pizza oven that encloses those PLL boards gets hot. TenTec provided no
>>>>> airflow, and there are two pass regulator transistors on the aluminum lid
>>>>> that adds to the heating problem. There is a procedure for setting the
>>>>> lock range for each crystal that requires using a good scope to monitor a
>>>>> point on the uP control board. I've fought that problem on three or four
>>>>> Omni VI rigs I own. Pete
>>>>> _______________________________________________
>>>>> TenTec mailing list
>>>>> TenTec@contesting.com
>>>>> http://lists.contesting.com/mailman/listinfo/tentec
>>>> _______________________________________________
>>>> TenTec mailing list
>>>> TenTec@contesting.com
>>>> http://lists.contesting.com/mailman/listinfo/tentec
>>> _______________________________________________
>>> TenTec mailing list
>>> TenTec@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/tentec
>>
>>
>> ------------------------------
>>
>> Subject: Digest Footer
>>
>> _______________________________________________
>> TenTec mailing list
>> TenTec@contesting.com
>> http://lists.contesting.com/mailman/listinfo/tentec
>>
>>
>> ------------------------------
>>
>> End of TenTec Digest, Vol 229, Issue 8
>> **************************************
>
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