Anyone know about this bass preamp circuit wiring diagram?

[condor]

i bought a new bass. But its electric part is malfuntioning. to fix it, i need a preamp circuit wiring diagram.
unfortunately, i cant find that.
i want you to find electric part, then i'll appreicate that.
where can i get this stuff?
someone have wiring diagram, upload plz.

thnx!!

condor

[MarkusBass]

I don't see any preamp on the photos. I even don't see the brand of the bass. Is it Condor from Brazil? In most cases such problems can be solved without wiring diagrams. I suggest that you open the bass and make a photo of the preamp (and upload it here). This would increase your chances that someone will help you.

Mark