As far as I know, no ten tec PA folds back at high swr.
They rely entirely on over current protection and shut down.
Even with a LP filter board relay failure the PA should draw lots of current.
Perhaps enough to trip the protection circuit.
Mike wb8vge
Sent from my iPhone
> On Aug 18, 2014, at 2:28 PM, Jim Brown <k9yc@audiosystemsgroup.com> wrote:
>
>> On Mon,8/18/2014 11:14 AM, Jim Allen wrote:
>> I removed the covers top and bottom but find no 81595 mixer board. I did
>> find what appears to be connector 82 on the logic board and did "remove and
>> plug [it] back in" with great trepidation.
>
> Why trepidation? It's common for connector contacts to oxidize or become
> loose over the years. Disconnecting and reconnecting one or more times simply
> scrapes a bit of the oxidation off. Just be careful to remove and re-connect
> them without bending contacts, and lined up correctly (not one row off, for
> example). And do this for ALL the connectors.
>
> Another thing I would try is to back off the power a lot (5-10W) and see if
> you get anything out. If the SWR is very high at the rig, the TX may go into
> protect mode, especially at full power.
>
>
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