I swapped out the non working synthesizer with a good one I had removed for an upgrade. The new one did not work either, so it is something else. I tried calibrating both synthesizers and received an error message ERROR 00044 on both of them.  I have been trying to contact Elecraft support, but have no joy there yet.

I guess I need to study the schematics some more. I must be missing a voltage somewhere. I tried re seating the connectors on many of the boards including the front panel. No luck there either, but I will try again tomorrow and use some DE-OXIT.

73

Dave K1WHS

On 3/25/2020 2:14 AM, Wilson Lamb wrote:
Why wouldn't you change  the synth?
I wouldn't even think of troubleshooting such a complicated, but free, board!
A bad one will obviously shut down both RX and TX!
WL
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