Help

[Hougenie]

Hi,

First post so excuse any newb errors.
I have a fretking Corona sp and I've been trying to put a SD P90 in the bridge.

I've wired it up as below (see image)

The problem comes when I select the bridge pickup alone, it's very quiet (around half the volume of other positions)

Every other position sounds great and that's with red and white connected as below, not taped off.

I have read some posts saying that occasionally the green and black wires need to be reversed (particularly with fender pickups) and wondered if this was the case here?

I know fretking model a lot of the strat guitars on fender so wondered if pickups were the same and in that case would it be black and bare to ground then green as hot?

Not sure if anyone has any other advice to solve the volume issue. Pickup height is not the issue.

Thanks in advance.

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[VinceT]

Re: Help

Hey - did you reflow the solder joints for that pickup, and make sure there was mechanical connection, not just solder?


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[Clint 55]

Re: Help

Single coils, what P90s are, can't be out of phase with themselves. And they shouldn't have 4 conductors either. :scratchch:dunno:

 

[Mincer]

Re: Help

Welcome to the forum!

If you have a multimeter, check the DCR of the pickup to make sure there isn't an issue. You can also wire the pickup directly to the jack to see if it is giving full output. Basically, we want to know if the pickup actually has a problem, or if the problem is somewhere else.

 

[CaptainWhizz]

Re: Help

Single coils, what P90s are, can't be out of phase with themselves. And they shouldn't have 4 conductors either. :scratchch:dunno:

This puzzled me too.

 

[Hougenie]

Re: Help

Thanks for all the replies so far. Been doing some reading re the P90/soapbar pickup (its stock) and this is the best I could find, not sure if it clarifies anything
http://www.musicradar.com/reviews/guitars/fret-king-black-label-corona-sp-547710

The wiring is def as above though - black, green, red, white, bare??

In terms of checking the pickup I dont have a multimeter but could get one, alternatively, how would I go about connecting it to the jack as Mincer has suggested?

Ta

 

[Hougenie]

Re: Help

Just checked Fret King specs and this is what it says re PUPs

'Fret-King stacked humbucker WP90SKb and two Fret-King WHS vintage voiced single coils'

 

[Der Oberherr]

Re: Help

On a random note, why are you wiring a P90 by following a humbucker wiring diagram? :dunno:

 

[VinceT]

Re: Help

What specific SD model are you installing?


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[Hougenie]

Re: Help

On a random note, why are you wiring a P90 by following a humbucker wiring diagram? :dunno:

See above - Fret King stacked humbucker. Its made by SD when you have the pickup out. Wiring is as for humbucker but as I say totally new to all of this so open to suggestions

 

[Hougenie]

Re: Help

Ahhh wait, should this then be wired as a stack P90 and hence I have made a schoolboy error?

 

[VinceT]

Re: Help

Ahhh wait, should this then be wired as a stack P90 and hence I have made a schoolboy error?

I’d look into this before doing anything else!


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[VinceT]

Re: Help

Here it is https://www.seymourduncan.com/wirin...ps,neck-s,middle-s,bridge-sch,1-volume,2-tone


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[Hougenie]

Re: Help

What specific SD model are you installing?


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Thanks for the diagram Vince (so the only thing I have done wrong is not tape off the red & white?
Im pretty sure its a SD STK-P1 pickup....would that be wired in as you have suggested?
Would this allow for the varicoil control??

 

[VinceT]

Re: Help

The diagram I shared doesn’t do anything in terms of splitting the coils of the P90. I haven’t got time to search for the Fret King wiring, so can’t make an absolute recommendation, but from the Guitarist article, it sounds like this:

https://www.seymourduncan.com/blog/the-tone-garage/guitar-wiring-explored-the-spin-a-split-mod


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[Hougenie]

Re: Help

The diagram I shared doesn’t do anything in terms of splitting the coils of the P90. I haven’t got time to search for the Fret King wiring, so can’t make an absolute recommendation, but from the Guitarist article, it sounds like this:

https://www.seymourduncan.com/blog/the-tone-garage/guitar-wiring-explored-the-spin-a-split-mod


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This sounds exactly right. I'll be on it this weekend and report back. Thanks.

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[CaptainWhizz]

Re: Help

Stacked humbuckers are two coils wound opposite directions, around the same poles, is that right? But are both coils the same amount of winds?

 

[Hougenie]

Re: Help

Hello all, just an update.
I haven't toyed with 'spin a split' yet but got the stacked P90 working and to split in 2nd position.
It was as per the initial diagram and the one that Vince sent (they were same when using option to split). The issue was as suspected the green and black wires needed to be switched.
For anyone with a fretking and wiring in an SD pickup swap hot and ground like you would with fender and all will be good

Cheers for all the help

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