[time-nuts] Z3801 EFC error

[Bob]

Hi,
My Z3801 just crapped out.  It seems that the DAC has ramped up to the rails, 1048560, and I'm getting an EFC fault.  Any tips before I open the unit and start poking around?  The oscillator is running and pretty close to 10MHz, I don't have any reference accurate enough to check it.  Any trends here, is it the EFC in the oscillator or is it the DAC and following amplifiers?

Thanks, Bob