Seventh Circle Audio

Just finished a C84. Checked for shorts at J3 between pins 1 and 2 also between 2 and 3 well over 100. Plugged it in to power and the R71 fried? Not sure what to do from here?

As you can see from the schematic, there's not a lot to go wrong. Could be that

C39 is backwards
R73 is wrong value
Q11 and Q12 are swapped, wrong, shorted