Just to follow up and close this out. The mute in the Omni 6+ isn't a
hardware mute, and that's what was throwing me for a loop. The MUTE
input simple drives an internal MUTE RQ line and I believe the muting
is actually done by the dsp processor. Because I'm bypassing dsp for
normal rx audio (only using dsp audio for the sidetone), it wasn't
getting muted (duh)
Thanks for the help & 73,
Barry N1EU
On Fri, Nov 25, 2011 at 2:09 PM, Barry N1EU <barry.n1eu@gmail.com> wrote:
> Another Omni 6+ was available to test and the mute seems to work fine
> in this other Omni 6+, just like many of you said it should. So the
> mute circuit WAS defective in the original Omni 6+ and apologies for
> making this more complicated than it was.
>
> 73, Barry N1EU
>
> On Thu, Nov 24, 2011 at 10:23 PM, Barry N1EU <barry.n1eu@gmail.com> wrote:
>> Thanks for all the responses and the troubleshooting tips. I'm going
>> to try and open up the Omni 6 sometime tomorrow and have a look around
>> and see if there's a quick repair that can be made.
>>
>> 73, Barry N1EU
>>
>> On Thu, Nov 24, 2011 at 2:27 PM, Ken Brown <ken.d.brown@hawaiiantel.net>
>> wrote:
>>>
>>>
>>>
>>>> Yes I have tried it...just now, and it does work very well.
>>>
>>>>
>>>
>>>>> Thanks but have you actually tried it?
>>>>>
>>>>> My mute jack does NOT mute the receiver when grounded.
>>>>>
>>> Then your Omni VI is broken. Repairing the Omni VI to make the mute
>>> input function properly is probably preferable to building a workaround.
>>>
>>> The mute input may not work because someone has modified the rig to use
>>> the mute jack for some other function, or because something was
>>> connected there that should not have been and damaged the rig.
>>>
>>> Look at "FIGURE 4-18. CONTROL BOARD SCHEMATIC (81596)"
>>> Check to see if D17 is intact. If it has not been removed then check to
>>> see if it is any good.
>>>
>>> If someone modified the rig to use that jack for some other purpose I
>>> would expect to see D17 missing, and a wire connected from the J3 end
>>> D17 solder pad to whatever it is they wanted access to. In that case
>>> remover the wire and replace D17.
>>>
>>> If it was damaged I would expect D17 to be open circuit. In that case
>>> replace D17.
>>>
>>> DE N6KB
>>> _______________________________________________
>>> TenTec mailing list
>>> TenTec@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/tentec
>>>
>>
>
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