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Accidentally bought a shorting jack HELP
Posted: Fri Jan 10, 2014 12:18 pm
by bigchiefbc
So, I'm putting together a dual fuzz and I realized as I was soldering everything up today that the jacks I bought are shorting jacks, instead of the normal mono ones. They're these guys:
http://www.mammothelectronics.com/4SJK1 ... 0-1006.htmI wired it all up and I'm not getting any signal, even bypass, so I know that the jacks are mis-wired. I was pretty sure that the leftmost lug was the tip, and the rightmost lug was the sleeve, and the middle lug is the shorting part. But the problem is that I have no idea if that's right, and I have no idea what to do with the 3rd lug. Please help out a moron.
Re: Accidentally bought a shorting jack HELP
Posted: Fri Jan 10, 2014 12:21 pm
by aegert
which jack number is it is it like this?

if so just dont connect the middle lug to anything it will work like the mono...
Re: Accidentally bought a shorting jack HELP
Posted: Fri Jan 10, 2014 12:24 pm
by aegert
Oh look at this
this means leave the shunt unconnected
Re: Accidentally bought a shorting jack HELP
Posted: Fri Jan 10, 2014 12:25 pm
by bigchiefbc
Yeah it does look like that one. OK, that's what I did, so I guess it's something else. I'll poke around again tonight and see if I can find the issue. Thanks,
Re: Accidentally bought a shorting jack HELP
Posted: Fri Jan 10, 2014 12:42 pm
by aegert
Just note that cheep copies might have a different pinout config.. Turn the jack to the side and look at the layers the top layer(the one closest to the arm of the jack is the sleeve. the middle is the shunt and the bottom(part closest to nut) is the tip!
Re: Accidentally bought a shorting jack HELP
Posted: Fri Jan 10, 2014 1:54 pm
by bigchiefbc
aegert wrote:Just note that cheep copies might have a different pinout config.. Turn the jack to the side and look at the layers the top layer(the one closest to the arm of the jack is the sleeve. the middle is the shunt and the bottom(part closest to nut) is the tip!
Yeah, that's what I figured, and that's how I wired it - the lug that connected to the bottom layer is where I soldered the input signal, and the top layer for ground. It was late last night and I was probably high on solder fumes

I'll check it with a clear head tonight. Thanks for your help,
Re: Accidentally bought a shorting jack HELP
Posted: Fri Jan 10, 2014 2:13 pm
by aegert
anytime!
Re: Accidentally bought a shorting jack HELP
Posted: Sat Jan 11, 2014 1:17 am
by bigchiefbc
So it was definitely the jacks. I think that the pin-out of the lugs is not the same as the switchcraft, but I was getting really frustrated trying to figure it out. Even my audio probe wasn't working right because I must have had the wrong lug soldered to ground.
So in a fit of range, I just took the damned things out and replaced them with the mono jacks from my beavis board. Problem solved, everything is bypassing fine now.
Now to figure out why I'm not getting signal when it's engaged

Re: Accidentally bought a shorting jack HELP
Posted: Sat Jan 11, 2014 8:01 am
by aegert
Are you getting any sound even hiss when out put vol is turned up?
Re: Accidentally bought a shorting jack HELP
Posted: Sat Jan 11, 2014 1:56 pm
by bigchiefbc
aegert wrote:Are you getting any sound even hiss when out put vol is turned up?
Negative. I didn't design the circuit, so I'm talking with the duder who put it together for me, to see if something might be funky on the board. I'll definitely keep you guys updated if I need more help. Thanks!
Re: Accidentally bought a shorting jack HELP
Posted: Sat Jan 11, 2014 4:12 pm
by aegert
kewel