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Jazzy switch not working

Posted: Sun Dec 11, 2016 7:13 pm
by jamba72
Got my SQ VM Jazzy yesterday and did a slight relic job plus setup with Tune-o-matic..sounds grrreat.
Have a Mustang bridge also but the TOM sounds much better, though I still have to file down the notches a bit..

well, I did a standard wiring but the rhythm switch doesnt work properly..I can hear something but veeeeeeery silent, is there a ground soldering missing on the switch??

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Posted: Mon Dec 12, 2016 8:27 am
by jamba72
I noticed a difference in the schematics..in the original Fender one, the cap has a connection to ground ( pot case), in the Duncan plan not..



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Posted: Mon Dec 12, 2016 9:55 am
by NickS
Well spotted!

Posted: Mon Dec 12, 2016 10:43 am
by jamba72
ok, I desoldered this ground connection but now the switch activates the neck pickup, like a toggle, very strange..
maybe broken..I´ll just replace it..

Posted: Mon Dec 12, 2016 12:35 pm
by NickS
You need the cap connected to ground for the tone control to work as a tone control.

Posted: Mon Dec 12, 2016 2:10 pm
by jamba72
-worxx-

bad shielding contact..