I recently purchased and installed the VTA board in an st70 and cannot get a bias voltage reading on the right channel. The left channel seems just fine. I have the triode switches wired in, if that makes any difference. From what I can tell from all of the photos and schematics I have, everything is connected properly. Where should I begin to look for problems? All tubes light up, including the rectifier. I have not even checked other voltages.
Thanks for any help folks!