hi guys, so i am building this:
http://img.photobucket.com/albums/v609/al_heeley/ABY.jpgexcept i added a buffer and a volume knob for "A" and "B."
so, everything works as it should, except the the LEDs. the "Y" LED is only active when "B" is engaged. when just "A" is engaged, "Y" won't light up.
i've checked over my wiring about a hundred times. i am absolutely sure that everything is followed correctly. i feel like the diagram must be messed up somehow. i am about to pull my hair out over here!