I've checked most everything I can track down. I am not getting 5v to the preamp board. 1 of the 6 pins does have 2.3 v on it but I can't tell which pin number it is. Looking at page 3 of the schematic, near the center of the drawing, next to R47 it says 27V on pin 5 at D19. Don't know how they can have 27V there when all we have to start with is +/- 18v. Maybe if that 27V were there I would be seeing 5V at the IC's on the preamp board. As of now I can hear a little signal getting through but none of the controls change anything.
Anybody help with this?