themaskedmouse, i only have 1 schematic sheet for the ATJ2085
Here. According to it, the middle schematic layout is the ATJ2085, pin8 is the Audio Right and pin9 is the Audio Left. And towards the left of the layout is the complete Audio section schematic.
It might not be very accurate as different manufacturers use different schematics and i've no idea which manufacturer this is from, but guess it's some sort of guideline.
Hope this helps.