Hi, Help sorely needed with likely resistance values for orignal pots, wiring and pickups. I'm new to getting into guitar/bass internals, this is the first time I've even taken any pickguard off. The other night my bass ('73 Precision Bass) stopped making much of a sound whilst I was practising and what I have done so far hasn't fixed it. The volume pot works, but the tone pot now just gives me a tinny sound if anything. I carefully took the electronics out and back a few times to test if there was any improvement - alas not. I spent some hours reading forums, fender wiring diagrams, etc and bought a multimeter today, to try and figure out what is broken. I'm getting some values, for example, A-P = 5k but B-C = 223k. But without knowing what the values of readings between or within components makes it very difficult to know what part or wire is faulty. I'm loathe to desolder anything without being sure about which part is faulty. Any info, tips, advice would be much appreciated.