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Bridge Pickup Died? Need Help Please!!

Discussion in 'Pickups & Electronics [BG]' started by faulknersj, Jul 22, 2012.


  1. faulknersj

    faulknersj Supporting Member

    Apr 4, 2008
    Scottsdale Az
    I recently replaced the Noiseless Pickups in my Fender Custom Classic Jazz Bass with Nordstrand NJ4 pups, and decided I liked the Noiseless pups better (another thread on that later). I have a J-Retro pre-amp in my bass which makes pickup swapping a really solder free process. So I put the Noiseless pups back in and the Bridge pickup is not functioning correctly. It is practically dead, but, I can get a little bit of extremely low trebley output from it when i crank the gain screw (you can boost each pickups gain to taste on a J-Retro) asociated with the Bridge pup on the J-Retro a little bit. Can a pickup just go bad and lose output? The pups were out of my bass for about 4 days.
    Any help trouble shooting is greatly appreciated!!

    Thank you!
     
    Dmorris14 likes this.
  2. PlungerModerno

    PlungerModerno

    Apr 12, 2012
    Ireland
    I'd recheck the wiring... check any photo's you took of the functional wiring (surprisingly handy... esp with 3 or more pickups and switches + pots) and/or diagrams.

    Check the operation with a multimeter. Not sure how... I'm sure a pickup expert will give their expertise shortly! :D

    Sorry to hear the pickups are giving you trouble.
     
  3. faulknersj

    faulknersj Supporting Member

    Apr 4, 2008
    Scottsdale Az
    ^thank you. The wiring is correct and exactly the same as it was. All the solder connections look good from the preamp. The neck pickup fails to work in both active and passive modes.
     
  4. PlungerModerno

    PlungerModerno

    Apr 12, 2012
    Ireland
    Hmmm. I'd scour the web for info on the preamp. It could help you diagnose the issue and would be handy for a specialist if you need to send it to be fixed. :(

    It's my understanding that passive pickups only need a multimeter and rough knowledge of the expected resistance to check the pickups functionality...

    Active pickups are somewhat more complex to troubleshoot... I can't really speak from experience, so good luck. Bump this thread till you get some better advice!

    PS... is it possible to test the pickup without the pre... direct to the jack? if it's a passive pickup it could be a quick, conclusive test. If it's an active pickup bumpity bump. Hang in there!
     
  5. faulknersj

    faulknersj Supporting Member

    Apr 4, 2008
    Scottsdale Az
    ^ thank you PlungerModerno!
     
  6. PlungerModerno

    PlungerModerno

    Apr 12, 2012
    Ireland
    My pleasure. I've been planning on hum chasing for a few weeks... I'll get round to it soon. Having a pretty high end pickup crap out on you blows, I'd imagine it's still good. The preamp might be the cause, but that's just a hunch... Let those in the know lead the way...
     
  7. faulknersj

    faulknersj Supporting Member

    Apr 4, 2008
    Scottsdale Az
    bump. just put the Nordy bridge pup back in and it worked just fine so it must be the Noiseless Bridge pup. Pre-amp is functionaing as it should.Can i re-solder the connections? why would this pickup have just died like that? help please TB!
     
  8. PlungerModerno

    PlungerModerno

    Apr 12, 2012
    Ireland
    C'mon people! Help a bass playa out! :hyper:
     
  9. faulknersj

    faulknersj Supporting Member

    Apr 4, 2008
    Scottsdale Az
    can anyone explain why a pickup dies? Can the connections be resoldered? Any thoughts?
     
  10. SGD Lutherie

    SGD Lutherie Banned Commercial User

    Aug 21, 2008
    Bloomfield, NJ
    Owner, SGD Music Products
    Did you take the covers off the Fender pickup at any time?

    They are kind of easy to break with the covers off because of where the wire passes.

    I recently rewound a broken N3 Jazz pickup. Only the top coil was bad.

    So you should be able to get them fixed. It might not even need rewinding.
     
  11. faulknersj

    faulknersj Supporting Member

    Apr 4, 2008
    Scottsdale Az
    I did take the covers off albeit for a very brief time. I will take it into the shop tomorrow I suppose. What is the most likely component to break?
     
  12. SGD Lutherie

    SGD Lutherie Banned Commercial User

    Aug 21, 2008
    Bloomfield, NJ
    Owner, SGD Music Products
    There are very thin wires going from the top coil to the bottom coil on the ends of the pickup.
     
  13. faulknersj

    faulknersj Supporting Member

    Apr 4, 2008
    Scottsdale Az
    I dont see a thin wire going from the top coils to the bottom coils so that could be it I suppose. I do see the thin wire soldered on the bottom 4 corners of the bottom coil.

    If that is the case, does the whole pickup need to be rewound? Btw, thank u so much for your help!
     
  14. SGD Lutherie

    SGD Lutherie Banned Commercial User

    Aug 21, 2008
    Bloomfield, NJ
    Owner, SGD Music Products
    I've only worked on the N3 version, so I don't know how the original version is laid out. But my suspicion is that one of those little wires is broken.
     
  15. SGD Lutherie

    SGD Lutherie Banned Commercial User

    Aug 21, 2008
    Bloomfield, NJ
    Owner, SGD Music Products
    Not necessarily. But it depends on what's wrong. Sometimes a wire can be peeled back and reattached. If the coil is damaged, it might only be one of them.
     

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