It is resolved !
Yes Hendrix, it was the Nsl-32 that was dead.
I put the one on the other pedal and it works.
I put it in the same position as the other (see photos)
I should have done this first! But, it was amazing because the nsl32 had voltage but was not working.
And I couldn't imagine a bad solder, being that the other pedal the solders were really not nice and it worked.
There, I had really applied myself, and concentrated.
Anyway, thank you very much I learned a lot ! Notably the audio-probe and many things.
And thank you very much Micha for your involvement! *** and everyone.
Best regards, super forum 👍