tischbein Posted September 15, 2009 Share Posted September 15, 2009 I am in dire need of a wiring diagram for my 78 Jazz Bass. It is completely different from a standard Jazz wiring, the grounding is different. Any help, please... Quote Link to comment Share on other sites More sharing options...
BOD2 Posted September 16, 2009 Share Posted September 16, 2009 If the component setup (i.e. pickups and pots) are standard then might it not be better just to rewire it to "standard" spec ? Grounding can often look different because you can connect a ground wire to any grounded metal part (e.g. a pot shell, or the metal control plate, or a shielded cavity) and it will have the same electrical effect. Could it also be that someone has modified the wiring at some point as well ? Quote Link to comment Share on other sites More sharing options...
tischbein Posted September 16, 2009 Author Share Posted September 16, 2009 No, it´s all original. I found some strange Fender diagram mentioning Glazier points ?? Quote Link to comment Share on other sites More sharing options...
BOD2 Posted September 17, 2009 Share Posted September 17, 2009 Had to Google that myself ! There's some information about them here [url="http://www.offsetguitars.com/jaguar_restoration/page2.htm"]http://www.offsetguitars.com/jaguar_restoration/page2.htm[/url] It seems they are small triangles of aluminum soldered onto the brass shielding plates and sort of "embedded" into the wood of the body cavity to keep the brass plates in place. Does your bass have these Glazier plates ? Quote Link to comment Share on other sites More sharing options...
mrcrow Posted September 17, 2009 Share Posted September 17, 2009 [quote name='tischbein' post='599505' date='Sep 15 2009, 06:55 PM']I am in dire need of a wiring diagram for my 78 Jazz Bass. It is completely different from a standard Jazz wiring, the grounding is different. Any help, please...[/quote] imho there is only one way to wire a jazz correctly use a pan pot as for glazier plates... well earth is earth no matter what the rose is called...my mia P had connections to the paint..!!!! i would earth on the pots using daisy chain method....if not using the pan pot connect hot from pups to pin 2 on each pot....looking from underneath and reading anti clockwise hot to jack from pins 1 via tone pin 2 ...then to jack..all one wire with cut outs at relevant pins all grounds to tone pot casing pup1 vol1 pup2 vol2 bridge.........to tone pot casing then tone pot to jack the pan pot method avoids volume fall out... when using tone at varying volume settings for each pup when using full volume one each pup there is a dip anyway....its common on jazz Quote Link to comment Share on other sites More sharing options...
tischbein Posted September 27, 2009 Author Share Posted September 27, 2009 Thx for all the suggestions.. techie checked it, everything is rocksolid. There is some leftover laquer of sorts on the polepieces, so I refinished them with some acylic laquer. The humming got a little quieter... it´s just part of a jazz bass, I guess. Changed the playing technique a bit and all is well. That awesome sound is all worth it. Quote Link to comment Share on other sites More sharing options...
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