
Points are listed from the top point of view. You can just mirror/swap and do on the bottom.
Depending on the status of the board, hopefully you can still use it with a wire install to the blue points, J2D2.4 and 7 to test out the resistor values.
Red wire you can wire on top to that point or the point the qsb uses.
For yellow, same, wire that on bottom with diode to the Q2N1 aud_clamp spot.
Go to radio shack and grab a pack of 330 ohm and 470 ohm resistors, and the diodes. run you about $1.50 per pack.