I wold say you are 99% likely to correct the problem with this relay.
Good diagnostic, if you ask me...
Gary
Sent from my iPad
> On May 19, 2016, at 6:05 PM, Mike Schatzberg <cherokeehillfarm@earthlink.net>
> wrote:
>
> Hello Ten Tec Fans:
>
> My normally reliable O2, sometimes returns from transmit to receive with a
> lower sensitivity. Switching back to transmit, and again to receive, the
> normal sensitivity returns.
>
> It appears as if I have a dirty contact on a relay, and have to exercise it
> for better contact.
>
> Looking at the schematics, I see there is a reed relay, K6, which appears to
> perhaps be the most likely candidate to be at fault. This relay is on the A1
> board, the low pass filter board.
>
> Before I take everything apart, and start looking (there are no pictorials
> for component placement information), has anyone had a similar problem with
> their O2? Any information as to board location, and degree of difficulty in
> removing this relay, if indeed it was your issue, would be appreciated.
>
> I guess since this radio is circa 2006, and I use QSK switching, and always
> use VOX, I can’t be too surprised that this high speed relay might need
> replacement by now.
>
> Thank you for any possible input.
>
> 73,
>
> Mike
> W2AJI
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