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So, in the above - I'm trying to isolate your "low" condition - which really - is "High" because somehow the Varactor appears to be getting a different voltage.


Seeing that you have to chase downwards - the frequency - seems to indicate the Selector (MODE) side that powers that specific section the Clarifier then "offsets" using a voltage from itself - sends power thru one of this set of coils for that mode which tunes this oscillator - power from one - to turn it on, then the Varactor is tuned by the difference between the two to develop the capacitor to make it "ring" at the specified frequency.


So, this would also affect the DECONVERSION side too. You don't seem to have this problem in USB - you say it works, But LSB uses the same principle - but in THE RX mode the TP3 has to shift to work the deconversion further down the chain - so you're hearing the effects - but is the IF strip seeing/switch off the right section in the SSB mode? I think you're ok that way...


But - Did you disconnect the Frequency Counter for a quick loading check?


Why? Well, the Frequency counter sees the IF offset from this same section - but to display it - it must use the mode selected - send power to a pin - to tell the counter to display the corrected frequency - two pins 5 and 6 are used for this.


Got a snapshot of the wiring locations else they usually use the Header J21 (Frequency) J22 for 8V and switching info...


  • your problem seems to be the RX side
  • You did ask about "unlocking"
  • Then all you need to do is remove R113/D68
  • Solder 8V constant (thru R113 to reduce the tuning headaches) to re-establish the Clarifier pots constant 8V source.
    • R113 can have the leg that is away from the J9 connector (board component side up front panel facing you - it would be right leg) - lift it up and solder your 8V wire from JP200 or JP190 to freed/lifted leg of R113.
  • Locate C1 and C2 on main PCB by F1 and F2 (Where your Clarifier goes)
  • Does it have a solder short?
  • It should you wouldn't have USB if that was the condition.