The actual wiring here is dramatically different than the diagram depicted. Also it looks like the volume knob should have a 500k resistor and it does not. Am I looking at the wrong wiring diagram?

http://www.pitbullguitars.com/wp-con...s/pdf/JM-1.pdf

https://photos.app.goo.gl/VQnUH1zcRHiKyhNB8