ok... so i re-soldered #5, B4, and A1. now the three reading are within 15%. they were 67v before, now they're 76. exactly within 15%.
i replugged everything in, at first the left channel is still louder, but i found out that i have to turn the knob all the way up to the max for both channels to be equal, is this normal? or is something still wrong. it's like the lower the volume knob goes, the right channel becomes quieter and quieter until it disappears. please let me know if this is normal.