Ed,I downloaded that service manual - an interesting read. So much stuff was well-figured out even back then.
You should look closely at section 4.4.7.1. regarding the presence of the 2f (310 Hz) signal.
Ed Breya _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.