[time-nuts] Help with LPRO 101

[Geraldo Lino de Campos]

New to the list, I got a used LPRO 101 and developed a GPS-based
counter to check accuracy of calibration. I found it is almost on the
spot, freq=9.99999998 MHz.

However, I can not adjust the frequency neither by adjusting the
external C-field potentiometer nor by applying a voltage at the EXT.
C-FIELD VOLTAGE pin.

Am I missing something, or do I have a faulty unit? In this case are
there schematics somewhere, or someone have experience repairing the
unit?

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Geraldo
geraldo at decampos.net