Rhodes Piano Pick Up Replacement Part 2

[ChiruStone]

HI, I have a Fender Rhodes (and I'm from Costa Rica...far away from VintageVibe), that I just got from US, on shipping system. One of the Keys is producing sound, pick ups are fine, have continuity and everything, but the sound is reduced, it has not the same power that others have. Tasting it, gives everything correct. But the sound that the key produces is inferior to the others....any idea what this could be?

Thanks so much!