hi there new to forum and the bass. bought a "project" RBX 170 from ebay 301025001104 - no specific mention of problem with pickup. As far as I can tell Precision /neck pickup has no output... 3 knobs, middle one and one at the back of bass affects output level (middle for volume of j-type pup in bridge position, rear knob blends both pups). initially ran multimeter over pots, de soldered p-type , no continuity when I connect meter to red and black cables... I'm assuming there should be continuity? told you I was new to this lark. Haven't taken out pup but wonder if I'm looking at replacing pickup? Bearing in mind £50 / $75 purchase price of bass, what's an appropriate level of pickup? prices? Recommendations? Opinions? Cheers!!