3 channel series/parallel switch repair... help!

I recently purchased a Gibson Victory standard bass and have found out the 3 channel series/parallel switch does not work. Sound only comes through when it is at the up position (facing the floor when holding bass). So I opened up the pickguard and see a tiny circuit. I see 3 wires coming from the pickup (red, white and black). The black one bypasses the circuit going straight to the volume knob. The red wire connects to a bottom right input and the white to the bottom left. in the middle row of the circuit two inputs are connected with wire and fed out to the volume knob. Are the inputs connected beneath the circuit? If not... that would seem strange. Also there are two empty inputs on the top of the circuit. You can kindof see it in the picture. Any thoughts? Thanks

PICTURE--VVV