[TenTec] Orion 565 tuning encoder

[Barry N1EU]

Yes, I've opened the smaller encoders on the Orion (multi, RIT/XIT, etc).
The vfo encoders are totally different animals.

Barry N1EU


On Sun, Jun 22, 2014 at 1:49 AM, Bob McGraw - K4TAX <RMcGraw at blomand.net>
wrote:

> Barry, I do not recall the brand.  The one I opened and repaired is in a
> bag at the shop.  As I think about it, most probably not the type and style
> used for the VFO encoders.  They are likely a bit more rugged than the one
> used for the MULTI function in the Eagle.  Anyway, I figure I might need a
> spare one of these days.
>
> It was a good learning experience.
>
>
> 73
> Bob, K4TAX
>
>
>
>
> ----- Original Message ----- From: "Barry N1EU" <barry.n1eu at gmail.com>
> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
> Sent: Saturday, June 21, 2014 6:37 PM
>
> Subject: Re: [TenTec] Orion 565 tuning encoder
>
>
>  Bob, did you open an Oak Grigsby encoder?  It appears to be completely
>> sealed.
>>
>> Barry N1EU
>>
>>
>> On Sat, Jun 21, 2014 at 10:41 PM, Bob McGraw - K4TAX <RMcGraw at blomand.net
>> >
>> wrote:
>>
>>  Shouldn't the two outputs be 90 degrees quadrature?  "A" leads "B" in one
>>> direction and "B leads "A" in the opposite?  I seem to think so.  I had
>>> to
>>> replace the MULTI encoder in my Eagle and I seem to recall it worked this
>>> way.
>>>
>>> I actually opened the original one, cleaned it, put it back together and
>>> it works. I don't advise this however, unless you have a lot of spare
>>> time
>>> with nothing to do, good illumination and steady hands under good
>>> magnification.
>>>
>>> 73
>>> Bob, K4TAX
>>>
>>>
>>> ----- Original Message ----- From: "Barry N1EU" <barry.n1eu at gmail.com>
>>> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
>>> Sent: Saturday, June 21, 2014 1:59 PM
>>> Subject: Re: [TenTec] Orion 565 tuning encoder
>>>
>>>
>>>
>>>  After hooking up a scope, I think the encoder is bad.  I'm seeing
>>> negative
>>>
>>>> going pulses on the A pin but not seeing positive going pulses on the B
>>>> pin.
>>>>
>>>> Barry N1EU
>>>>
>>>>
>>>> On Sat, Jun 21, 2014 at 6:41 PM, Barry N1EU <barry.n1eu at gmail.com>
>>>> wrote:
>>>>
>>>>  I measure 4.9V on the A9 board.  I flipped the rig over and now I'm
>>>>
>>>>> measuring 4.3V on the encoders (?!).  Not sure what's going on.  vfoA
>>>>> encoder is still working fine.
>>>>>
>>>>> Barry N1EU
>>>>>
>>>>>
>>>>> On Sat, Jun 21, 2014 at 6:34 PM, Barry N1EU <barry.n1eu at gmail.com>
>>>>> wrote:
>>>>>
>>>>>  I measure 4.63V on both tuning encoders.  And both encoders work on
>>>>> the
>>>>>
>>>>>> A
>>>>>> cable, so it doesn't seem like that would explain it.  But I'll poke
>>>>>> around
>>>>>> the A9 board.  I replaced all the A9 capacitors a few months ago.
>>>>>>
>>>>>> Thanks & 73,
>>>>>> Barry N1EU
>>>>>>
>>>>>>
>>>>>> On Sat, Jun 21, 2014 at 5:23 PM, shristov <shristov at ptt.rs> wrote:
>>>>>>
>>>>>>
>>>>>>  Barry N1EU <barry.n1eu at gmail.com> wrote:
>>>>>>>
>>>>>>> > Thanks Sinisa.  vfoB would not tune at all.
>>>>>>>
>>>>>>> I had the same problem.  VFO B encoder had a supply voltage of only
>>>>>>> 4.66
>>>>>>> V.
>>>>>>> After tightening 4 fixing screws on the A9 board, the voltage at
>>>>>>> encoder
>>>>>>> rose to 4.77 V
>>>>>>> and it started workig.
>>>>>>>
>>>>>>> 73,
>>>>>>>
>>>>>>> Sinisa
>>>>>>> _______________________________________________
>>>>>>> TenTec mailing list
>>>>>>> TenTec at contesting.com
>>>>>>> http://lists.contesting.com/mailman/listinfo/tentec
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>   _______________________________________________
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>>>>
>>>>
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>
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