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
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>>
>
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