how can I find the polarity out from my XLR

pop the cover of the machine see what color wires go to wich pin, or use a digital multi meter with a cd in the machine playing, probe the - and the + and the meter will confirm polarities

ths chichiuno,
i'll try both methods..
but maybe the 1st will be dificult because my Sony SCD-1 (my CDP) is FULL inside ; I'm not sure I could have a look inside ;-)

try this and be back soon

Laurent

Others will tell you how to figure it out but after you do, a tip.

If you have to change polarity on the cable, do it at the source end. This is because the signal cables are often different from the return wires; you want both signal wires to be the same no matter what config you end up with.
If you have sealed cables send them to the manu and they will do it at a nominal charge and they will still be factory.