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Thread: Looking for info on Ibanez RG9QM wiring

  1. #1
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    Default Looking for info on Ibanez RG9QM wiring

    I tried making some mods to my RG9QM that didnít work out, so now Iím trying to get it back to stock. I took several reference pictures before making any changes and followed them when reassembling it, but itís not working how it should.

    There is next to no information about this guitar online, and nothing at all on the Ibanez site since itís a discontinued model. The only info I could find was a picture showing the pickup configuration:

    https://drive.google.com/file/d/1LpR...ew?usp=sharing

    And apparently it uses Ibanez branded Quantum 9 pickups.

    I drew up my own diagram based on my pictures and following traces with a meter:

    https://drive.google.com/file/d/117U...ew?usp=sharing

    But as I said, Iím not 100% sure itís correct since it isnít working correctly. If anyone has one of these guitars, it would be really helpful if we could compare info to see if my diagram is correct or not. Iíve contacted Ibanez trying to get a diagram from them, but they havenít responded.

    Thanks.

  2. #2
    Super Toneologist Jack_TriPpEr's Avatar
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    Default Re: Looking for info on Ibanez RG9QM wiring

    Quote Originally Posted by Panopticon View Post
    I tried making some mods to my RG9QM that didn’t work out, so now I’m trying to get it back to stock. I took several reference pictures before making any changes and followed them when reassembling it, but it’s not working how it should.

    There is next to no information about this guitar online, and nothing at all on the Ibanez site since it’s a discontinued model. The only info I could find was a picture showing the pickup configuration:

    https://drive.google.com/file/d/1LpR...ew?usp=sharing

    And apparently it uses Ibanez branded Quantum 9 pickups.

    I drew up my own diagram based on my pictures and following traces with a meter:

    https://drive.google.com/file/d/117U...ew?usp=sharing

    But as I said, I’m not 100% sure it’s correct since it isn’t working correctly. If anyone has one of these guitars, it would be really helpful if we could compare info to see if my diagram is correct or not. I’ve contacted Ibanez trying to get a diagram from them, but they haven’t responded.

    Thanks.
    I recognize those 5 pickup switch positions as the trademark of the Ibanez 3PS1SC5 switch. The OEM ID stamped on the switch reads 2502N.

    That is specialized superswitch with fixed pickup combination results. It gives the 5 position results you linked to in your Google Drive pic when the switch is used for a 2 humbucker guitar, and it yields a different combination of 5 position results when used in a HSS guitar. So it does not *easily* support "wiring mods/options" like other superswitches. You'd have to study the signal mapping that is particuliar to this switch to determine what, if any worthwhile mods are possible. This switch is used widely across Ibanez's product line.

    Following is a wiring diagram for a 2 humbucker guitar using that switch that will work for you. The wiring color code used in this diagram matches the wiring color code of your OEM Ibanez pickups. Your Ibanez OEM bridge pickup may have its two Finish wires (described in the 2nd pic) prejoined together, because they only need to be split if that pickup was going to be wired in Parallel mode - which its not, just the Neck pickup is. That is why the 1st pic only has 3 wires for the Bridge pickup vs 4 (plus bare wire) for the Bridge pickup in the 2nd pic.

    The 2nd pic that follows explains the mapping of the lugs/contacts/signal flow of that switch. The wiring color code in this pic uses Seymour Duncan wiring color code.

    You should be all set now. Let us know if you have any further questions.

    Click image for larger version. 

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    Click image for larger version. 

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    Last edited by Jack_TriPpEr; 02-21-2020 at 04:54 AM.
    Quote Originally Posted by GuitarDoc View Post
    Good diagram Shadowfire90, but it isn't what the OP wants.

  3. #3
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    Default Re: Looking for info on Ibanez RG9QM wiring

    Thanks a lot!!

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    Super Toneologist Jack_TriPpEr's Avatar
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    Default Re: Looking for info on Ibanez RG9QM wiring

    Quote Originally Posted by Panopticon View Post
    Thanks a lot!!
    You're welcome.
    Quote Originally Posted by GuitarDoc View Post
    Good diagram Shadowfire90, but it isn't what the OP wants.

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    Default Re: Looking for info on Ibanez RG9QM wiring

    My guitar didn’t have that 330pf capacitor on the volume, what does it do exactly?

  6. #6
    Super Toneologist Jack_TriPpEr's Avatar
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    Default Re: Looking for info on Ibanez RG9QM wiring

    Quote Originally Posted by Panopticon View Post
    My guitar didn’t have that 330pf capacitor on the volume, what does it do exactly?
    That serves as a Treble Bleed Circuit (TBC). There are many options for how to wire a TBC. Read up on a summary of them at the link below. Option 4 in the pic below is the method used in the Ibanez wiring diagram i provided earlier.

    https://ironstone-guitar-pickups.co....uitar-pickups/

    Click image for larger version. 

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    Last edited by Jack_TriPpEr; 02-22-2020 at 12:38 AM.
    Quote Originally Posted by GuitarDoc View Post
    Good diagram Shadowfire90, but it isn't what the OP wants.

  7. #7
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    Default Re: Looking for info on Ibanez RG9QM wiring

    Okay, but what exactly does a treble bleed circuit do? How does it affect the sound?

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    Ultimate Tone Slacker TheViewFromVenus's Avatar
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    Default Re: Looking for info on Ibanez RG9QM wiring

    Quote Originally Posted by Panopticon View Post
    Okay, but what exactly does a treble bleed circuit do? How does it affect the sound?
    As you roll volume down, you lose treble. With this mod, you keep your high end as you roll the volume down.

    Sent from my SM-A205U using Tapatalk

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