I noticed that my new Fender Jazz Deluxe MIM (produced in 2002.) is about 50% quieter than my previous one ('98. model). Pickups aren't too far from the strings. Is there some way to boost signal with internal electronics? (I'm not reffering to changing some components) Is the problem in pickups? I won't open control plate because bass is still under warranty. Please answer only if you know what problem is about.