Artie help!! Please.

[jalguitarman]

I have had this problem since i put in my new dimarzio paf joe. I have a standard les-paul wiring setup. i put a duncan distortion in the bridge position no problem at all. When i put in the paf joe i get hum when the 3-way swith is in the middle and neck positions. I have since rechecked the wiring and it is correct to the wiring specs set forth. RED= hot out GREEN and BARE =back of pot BLACK and WHITE soldered and tapped with electrical tape. Any ideas. Could the two pick ups be out of phase?? Any help would be most appreciated. Thanks a billion.:smack:

 

[MikeS]

Re: Artie help!! Please.

Out of phase would be thin and nasal sounding. If it is out of phase, try simply swapping the hot and ground wires (keep the bare to ground). If that doesn’t work, flip the magnet, too.

Even out of phase, though, humbuckers should not produce 60 cycle hum. The color scheme you posted was correct for DMZ, but would only operate one coil of a Duncan.

 

[jalguitarman]

Re: Artie help!! Please.

Out of phase would be thin and nasal sounding. If it is out of phase, try simply swapping the hot and ground wires (keep the bare to ground). If that doesn’t work, flip the magnet, too.

Even out of phase, though, humbuckers should not produce 60 cycle hum. The color scheme you posted was correct for DMZ, but would only operate one coil of a Duncan.

You know thats kind of what i though. It does not seem to sound thin at all.

 

[octavedoctor]

Re: Artie help!! Please.

Your wiring protocol is correct for the DiMarzio, but there is no guarantee that the magnet alignment of the DiMarzio matches that of the Seymour.

You might want to try this;

Green+Red, taped off

White - ground

Black - Hot

This effectively "rotates" the magnetic polarity of each coil relative to the matching coils in the partner pickup. If that doesn't work, try the same thing, but Black - ground, White - hot.

 

[Frebnedzo]

Re: Artie help!! Please.

Please post results of experiments. I plan on mixing Dimarzio and
Duncans and one of my fears is that there is some trick where
each "normal" wiring doesn't work together

 

[jalguitarman]

Re: Artie help!! Please.

Your wiring protocol is correct for the DiMarzio, but there is no guarantee that the magnet alignment of the DiMarzio matches that of the Seymour.

You might want to try this;

Green+Red, taped off

White - ground

Black - Hot

This effectively "rotates" the magnetic polarity of each coil relative to the matching coils in the partner pickup. If that doesn't work, try the same thing, but Black - ground, White - hot.

Thanks, i will give this a try.

 

[Artie]

Re: Artie help!! Please.

The thing is, if it hums by itself, it probably has nothing to do with mixing it with the SD. Unfortunately, hum problems isn't an area I've had much experience with. I've got a humbucker guitar that hums, and a Strat that doesn't. Just by unplugging one and plugging in the other.

If I come up with something better than that, I'll post back. :blackeye:

Artie

 

[octavedoctor]

Re: Artie help!! Please.

The thing is, if it hums by itself, it probably has nothing to do with mixing it with the SD. Unfortunately, hum problems isn't an area I've had much experience with. I've got a humbucker guitar that hums, and a Strat that doesn't. Just by unplugging one and plugging in the other.

If I come up with something better than that, I'll post back. :blackeye:

Artie

I think the point is that the humbuckers are fine on their own, but the hum comes when both are in circuit. That's why i was thinking it might be the relative polarity of each coil in the humbucking pair to it's opposite number in the other pickup.

 

[octavedoctor]

Re: Artie help!! Please.

Sorry, i shoudl read the posts more carefully shouldn't I?

I've just noticed he is complaining of hum in both neck and middle positions.

That suggests that there is something not right with the PAF joe. Unbalanced coils maybe?

 

[Artie]

Re: Artie help!! Please.

I've just noticed he is complaining of hum in both neck and middle positions.

Heh . . . you caught it just before I posted.

Even though I've spent my whole life in electronics, hum and noise problems still drive me nuts.

Artie

 

[octavedoctor]

Re: Artie help!! Please.

Has the earth wire on the output cable come adrift at the baseplate perhaps?

Is the PAF covered? If it is, is there a good connection between the cover and the baseplate?

A screen that is not earthed is worse than no screen at all...

 

[jalguitarman]

Re: Artie help!! Please.

Has the earth wire on the output cable come adrift at the baseplate perhaps?

Is the PAF covered? If it is, is there a good connection between the cover and the baseplate?

A screen that is not earthed is worse than no screen at all...

No, the PAF Joe is not covered. Not sure what is meant by the earth wire. Should i maybe e-mail the tech guy at dimarzio. When you tyalk about the screen are you refering to the bare wire, I got to thinking about the wiring scheme you posted and was gouing to say; uh should i try this as the paf joe hums by its self. I know the hum problem makes no sense. Might i have defective pick up?