(DG) ST60 Constant True & Apparent Flashing

[ToddL214]

I'm troubleshooting my ST60 Wind unit's constant flashing of the True and Apparent lights.

Following the self test procedure I got "F01" in the first step of the test outlined in the manual. Next trip to the boat, I'll take a power source and multimeter to preform the test to confirm the masthead is transmitting and also consider a factory reset as a step to attempt to recover the functionality.

From reading previous forum inquiries/replies and explainations of true/apparent wind it appears that the "speed signal" is either not transmitting to the ST60 Wind unit or the supplied signal isn't being interpreted correctly. Do I understand correctly that this would be the reading of the "yellow" wire into the ST60 Wind unit?

Are there any additional suggestions or steps I should try outside of 1) a factory reset and 2) confirmation of correct voltages from sensors on the mast using the procedures supplied in the manuals?

Thanks in advance for any assistance or suggestions.

Todd L.