[TenTec] Omni VI Howling Noise

[Brian Roberts]

Thanks for the reply, Bob.   Yes, I've done all the connectors with De-Oxit 
and I thought that did the trick, but the howling noise came back after 
about a week.

Brian





> Have you done a recent "connector cleaning"?. If not, I'd say it is time 
> to do so. Just sitting there, internally the connector contacts will 
> oxidize after 30 or so years.
>
> So, one at a time, unplug each connector, then using a Q-Tip moistened 
> with contact cleaner, scrub the male pins. Then plug the connector in and 
> out a couple of times to wipe the female pins. Be sure you have aligned 
> the connector correctly and that it is fully inserted. Move on to the next 
> connector. Usually this method will correct a very large part of 
> intermittent and strange issues.
>
> NEVER spray anything into the radio, connectors, IC sockets and such.
>
> 73
>
> Bob, K4TAX
>
>
> On 10/26/2018 6:48 PM, Brian Roberts wrote:
>> Hello Gents--
>>
>> I have a Ten Tec Omni VI that has an intermittent problem that comes and
>> goes for no apparent reason. The radio can be transmitting or receiving 
>> just
>> fine and then a loud howling noise comes on. When the noise comes on, all
>> functions are lost (signal reception, mode selection, band change, audio
>> gain, etc.). The radio can be turned off and then back on with no change.
>> Resetting the processor doesn't help. Shutting the radio down for a day 
>> or
>> so will bring it back to normal again. Normal operations may continue for
>> days or weeks before the howling noise appears unexpectedly once again.
>>
>> I've found that pulling cable #56 on the Logic Board will stop the 
>> howling
>> noise. Plugging cable #56 back in restores the howling noise.
>>
>> Has anyone had a similar problem with the Omni VI or can anyone give me 
>> any
>> guidance on how to go about repairing the radio? Thanks.
>>
>> Brian K9VKY
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>>
>
>
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