Ok I actually tracked from the junction of C46 & C47 to the next point joined by a jumper track(I think all jumper traces are on top of the board so it is a double sided board) and probably a cold solder point or faulty trace which I bypassed with a short piece of wire. Now I get continuity to pins 7 of all the chip amps, and to the ground points that were "left out" before, through to CONN11.
voltages on the regulators now are:
LM317
Pin 1 adj = 12.4v
Pin 2 out = 13.7v
Pin 3 in = 37.7
LM337
Pin 1 adj = -12.6v
Pin 2 in = -38.1v
Pin 3 out = -13.9v
looking better?
voltages on the regulators now are:
LM317
Pin 1 adj = 12.4v
Pin 2 out = 13.7v
Pin 3 in = 37.7
LM337
Pin 1 adj = -12.6v
Pin 2 in = -38.1v
Pin 3 out = -13.9v
looking better?