I haven't been able to locate a specific service manual for the 696FD1.
Actually the receive side of USB has to be tuned down further than the LSB side. Whatever is going on appears to be isolated to the SSB side of the radio, or did. Seems now that both the LSB and USB have to tune down to 27.3840 for clarity on receive. I don't know what caused that change. I have re-seated most of the connectors by unplugging them and re-connecting.
The xmit alignment of the 10.69500 AM (L23), 10.69250 LSB (L24), and 10.69750 USB (L25) all fall into place.
The RX side of the alignment connected at TP3, AM (L20) 16.51000, USB (TP21) 16.51250, and LSB (TP22) 16.50750. All where they are supposed to be. That's what makes it so frustrating.
3.55V on the D50, D51 4.18V, D52 4.18V when set in their respective modes.
It does have the shorting wire in place. Thanks for this. I can see a clearer picture now of the circuit I didn't see the correlation until you pointed it out with the diagram and some tracing.
My 8V buss is at 9V. This may be the issue? Q37 is the regulator, a 2SA473, it does appear to be working, I have 13.7 or so to it. D73 is a 7.5 zener tied to it.
I like what you did with the "unlock" on the clarifier. I am going to wake up a bit and give that a try. Certainly can't hurt and may shed more light on the situation.
When I start to dig into your suggestions, I see a lot more and am gaining some understanding that I don't have. In fact, when going through this with you reminds me of my father in law explaining a lot of what is going on. Sadly he has passed, but I am having some aha moments as I follow along.
Thanks a ton for your time and explanations.
J21 & J22...pardon my finger
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