Fender Jazz Deluxe Push/Pull Preamp Bypass

http://www.talkbass.com/forum/showthread.php?t=216111

If you can't translate that to your bass, let me know which of these is your exact schematic:

http://www.fender.com/support/diagrams/index.php#BASSES

and I'll make a diagram for you.

 

I've got a '97 (9 volt) and I'm interested in doing the same. I believe it would be this diagram:

http://www.fender.com/support/diagrams/pdfs/ADJAZZBASSUPG3_99/SD0195400APg2.pdf

I've always wanted a passive switch... is it easy to accomplish?

 

Here it is:



According to Fender's parts list, the midrange pot, which is the only good candidate for a push/pull, is a 100k B (linear) pot. Check the usual suspects (allparts, wdmusic, guitarelectronics) but I doubt you will find one, in which case you'll have to use a mini-toggle switch that you could probably squeeze between the bass/treble and midrange controls.

Alternatively, although it looks like the volume pot is soldered to the PCB, a 250k audio push/pull is easy to find, so maybe you could get one of those and do some rearrangement in there, like remove the PCB from the pot, re-connect it with wires and accommodate the PCB somewhere else in the cavity.

Hope this helps,

Carlos

 

MY 2000 has the whole uniit, preamp, pots and all integrated into one board.

 

Thanks a lot for the diagram!

EDIT: Is this a push-pull pot? It's called "dual" and has 6 terminals.

http://www.allelectronics.com/cgi-bin/category.cgi?category=470&item=DLP-100K&type=store

 

I have a 2005 american deluxe jazz. My tech put a simple
switch in the battery compartment. No alteration of the
stock circuitry and easy to get to.

 

Nope, that's just a double pot as used in stereo circuits. I've looked in Mouser, Newark and Digikey and found nothing. I suspect it's got to be either the toggle or the vol. pot with PCB "relocation". I would go with the latter, it should be pretty straight forward to separate the pot and the PCB and find somewhere to fix it with double-sided sticky tape.

 

I'm interested in this as well. What's difference in tone between active flat and passive?
Love,
-Bazz-

 

I have the fender p bass special active deluxe.mhas pretty much the same wiring diagram shown above with a pcb on the volume pot. I made a slight modification, I change the pickup selector pot/knob for a 3 way toggle switch. It's just what I prefer. during the process the power wire that gives the power to the pickups on the pcb came disconnected. Now the trouble and one thing holding me back is that I can't get a good connection unless I move the wire around with my finger. Almost like using an antenna back in the day on your tv, moving it around for the right spot to get the station in. ANY ADVICE AS TO HOW I CAN GET A GOOD CONNECTION?

As seen in the picture where my finger is pointing, that the power wire on the pcb.

 

Resolder it.

 

I did it's just not working out

 

Did you damage the traces? If so, then they cannot be repaired.

 

Hmm, it doesn't look so but I was thinkin it coulda been damaged. If that's the case, is their anyway I can bypass it, or maybe remove the pot/board entirely? What are some alternatives?