Q: Samick Bass Preamp Circuit Board Switches????

Hi,

I have a 4 string (YAFGPJ) Samick bass shown below in the brochure. I just bought it used, now I am setting it up.

The active pre-amp has several micro-switches on the circuit board.

Would anyone have a schematic or know what they would typically do?

Here is a similar circuit board I found online (from Ibanez GT). The 3 switches are highlighted in red.

btw the 4 pot controls are
1 master volume
2 neck-bridge blend
3 bass
4 treble

 

I agree. I am working on a song where I need the second octave. The cut-aways in the bass make it very easy to play that high.

 

Two kill the output and one seems to decrease the sound.