Repair CED M2 chronograph sensor

[mendiola_loyola]

Hello,

I would like to repair my CED M2 chronograph sensor and I want to connect the sensor jack to my oscilloscope.
Do you know where can I find the pinout of the sensor jack?
The cables have three colors, Red, black and white, I think that Red is 9v, white is 5v and black is ground, is it Ok?

I hope you can help me.

Regards
Alfred