Hi cruizer, I see this post is from 2013, but I have similar issue with a dynasty 350 ser# LH070326L it is the older version, with pc6 235540 and pc7233144 I checked voltages (pc6) RC16 have 15vdc -15vdc 24vdc -24vdc though RC14 pins 1,8 have a micro level of 700hz signal (I can see fuzzy change but...