That board, sure I can use.
As time goes on I am certain there will be more and more of these failing and
it would be too bad to deep six a radio just for this board as it is really
simple.
I can first use your board to make the measurements on that IF passband.
Do you need anything for it?
Gary Follett
W0DVN
426 West Wheelock Parkway
Saint Paul, MN 55117
> On Dec 11, 2016, at 1:18 PM, Clayton Brantley via TenTec
> <tentec@contesting.com> wrote:
>
> Gary: I have a PLL board from my old 563 that went out to lunch and never
> came back. I have not been ableto repair it because I really do not have
> access to the equipment for testing. I did try to re-heat all the solder
> jointsbut that didn't do anything. Just wondering if you need the board for
> parts?
> Clayton N4EV
>
>
> From: Dukes HiFi <dukeshifi@comcast.net>
> To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
> Sent: Saturday, December 10, 2016 10:59 PM
> Subject: Re: [TenTec] Omni 6 5.5 MHz VFO PLL alignment
>
> Actually the synthesizer in this radio is pretty simple by synthesizer
> standards.
>
> It is also rather ingenious.
>
> I have found that the CPU puts more of these in the parts bin than
> synthesizer issues.
>
> But, we all have different experiences. For me, I’d rather wrestle an
> opponent I can beat (a PLL synthesizer) than one I cannot (a CPU with
> proprietary chips you can no longer get at any price).
>
> 73
>
> Gary
>
>
>> On Dec 10, 2016, at 12:56 PM, Steve Ellington <steven4lq@gmail.com> wrote:
>>
>> Good luck. PLL problems are the reason so many Omni VI's get sold for
>> parts. :*)
>>
>> On Sat, Dec 10, 2016 at 1:15 PM, Dukes HiFi <dukeshifi@comcast.net> wrote:
>>
>>> I did find the Omni 5 process that Barry had referenced but this only
>>> covers centering of the VCO.
>>>
>>> I need to do the loop IF alignment.
>>>
>>> There is a rectifying test point at the output of this stage and I assume
>>> that there are adjustments to be made at differing frequencies using the DC
>>> voltage developed at this test point in order to get proper gain across the
>>> entire required bandpass of the VCO.
>>>
>>> That’s the process I need.
>>>
>>> Thanks,
>>>
>>> Gary
>>>
>>>
>>>> On Dec 10, 2016, at 12:07 PM, Dukes HiFi <dukeshifi@comcast.net> wrote:
>>>>
>>>> Now that I have repaired the PLL on the 5.5 mHz board of this Omni 6+ I
>>> am repairing, I need to align the loop IF amplifier and VCO centering.
>>>>
>>>> Is there a resource where I can find this process?
>>>>
>>>> Gary
>>>>
>>>> W0DVN
>>>
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>>> TenTec@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/tentec
>>>
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