Hello. I have a pair of JBL L65A. They are in great condition. One of the works perfect. The other also works fine, only problem i have is the brilliance control for the 077 tweeter. The tweeter is fine and works 100%, just that the crossover control seems to not work. The midrange control works normally. The brilliance control, when adjusted, does not feel like it has any resistance from left to right. Compared to when i adjust the other tweeter and midrange controls that have a slight clicking noise when adjusted, this problematic brilliance control is very smooth when adjusted and is easier to move than the others. I have replaced caps before on other speakers, and i dont feel that is the issue with this. The wiring does not look to be by-passed either. Is this a need for a new l-pad, or cleaning pots?
I have included two pictures of each crossover. It looks that there are some slight differences in the components. If any help I.D. ing the differences (if any) would be greatly appreciated.