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Pick up not working?
Posted: Tue Sep 11, 2007 10:34 pm
by heptagram
I just got a 4003 '01 and when I push the toggle down for the bridge the bass goes dead and only works with the toggle switch placed in the middle, giving me far too much low end...
When I pull the toggle all the way up for the neck it sounds just the same as placed in the middle... What could be the issue?
Cheers!
Josh
Posted: Tue Sep 11, 2007 11:14 pm
by heinpete
Looks like your bridge PU is dead! Check the output with an Ohm-meter at the PU wire ends and the PU coil endings (carefully!).
If so, then contact Sérgio for help (rewiring).
Posted: Wed Sep 12, 2007 12:02 am
by bob_the_bass
More likely a bad contact/switch problem
Posted: Wed Sep 12, 2007 2:09 am
by heptagram
I think it might be a bad contact/switch problem as well
Posted: Wed Sep 12, 2007 2:33 am
by jaybic
I recently had that problem - turned out it was just a bad contact in the jack. Little contact cleaner and it sprung back to life.
Posted: Wed Sep 12, 2007 3:08 am
by jwr2
it could be a ric-o-sound wiring problem, it could be a bad toggle switch, it could be a dead pickup, it could be a broken wire somewhere under the pickguard ...
Posted: Wed Sep 12, 2007 3:09 am
by heptagram
Jason
Thanks for the info! What would be the best way for me to clean the contact with?
Cheers!
Posted: Wed Sep 12, 2007 3:30 am
by jaybic
um...I had some contact cleaner and sprayed it into the jack...about as simple as that. I'm not very knowledgeable about wiring diagrams, switches, pots. I've never even had my pickguard or truss rod cover off. All I've ever done is changed the strings...lol. Lucky for me that was it. Good luck in your repairs.
Posted: Wed Sep 12, 2007 3:34 am
by heptagram
Just checked and the bridge wire isn't attached at all...
Posted: Wed Sep 12, 2007 11:13 am
by johnallg
Most intertesting - it goes to one side of the toggle switch. Use Joey's schematic to see where:
http://www.joeysbassnotes.com/TipsPics/4003%20wiring.pdf
Posted: Wed Sep 12, 2007 8:22 pm
by heinpete
Josh, that was the best case scenario!
Posted: Thu Sep 13, 2007 2:20 am
by heptagram
I'm taking it in to the Bass Centre here in Melbourne next week to have it sorted out
Printed out the schematics as well
Cheers!