Following the service manual:
- Voltage across R1 is changing both in auto and manual sweeps, between 14 and 24 volts, from 10 meg to 20 gig, respectively.?
- Waveforms described in the figures are present at the test points given
- Also checked R1 and Q1 with DMM, both are ok.
So if you don't have any more ideas, I have a dead YIG oscillator :(
Regards,
Ruben