[Elecraft] PLL OSC Ref Unstable

[Jean-Francois Joly]

Good Day All,

In the Alignement and Test Part 2, I cannot manage to read 12090kHz at
TP3. Instead, I get a reading - and a very unstable one which
fluctuates a lot - of approximately 450 Hz. When I take a look at TP3
on the scope, I see a lot of noise/garbage.

Other hints & observations:

- No signal on pin 1 of U4.
- I get a stable reading of 12312Hz on TP1.
- Band+/Band- will increase/decrease TP3 freq of approx 12Hz

Any ideas of what may be causing the problem ? Could it be a bad PLL chip ?

Thank You
Jean-Francois VA2JFJ