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Thread: Need Help Converting Eminent Organ to VPO

  1. #1
    Recruit, Pianissimo
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    Need Help Converting Eminent Organ to VPO

    Greetings, I am an American organist who bought an Eminent Omegan 9000 from a church three years ago. It played for awhile but had some annoying dropouts of pedal notes. While trying to reseat all the circuit boards I somehow made the organ unplayable.

    Three American organ techs have looked at the instrument but none have any clue as to what is wrong, or how to fix it. It had always been in the back of my mind to make a VPO one day, and some time ago I decided to use the Eminent as the donor console.

    Once again I have run into a wall as none of the companies or individuals I am acquainted with who do console conversions understand how the Eminent keyboards are matrixed or how the stop controls and pistons are matrixed. They cannot make the Eminent keyboards or stops work with their MIDI encoders.

    I have invested a lot of time and money into moving this console to Oregon, and to abandon it now would cause serious marital difficulties. As it is, everyday that the Eminent sits in the living-room silent and brooding... ... anyone who could offer help and/or insight would be helping to save a marriage as well as put one more VPO into existence. A worthy undertaking don't you think? But there is no pressure . Thanks in advance.

    H.

  2. #2
    Commander, Assistant Conductor Albert's Avatar
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    Perhaps if you contacted Eminent directly and requested a circuit board diagram? Johannus supplied one when I bought my Opus 10 as standard accessory. It might cost you a bit of postage, but an email doesn't cost anything ...

  3. #3
    Administrator Krummhorn's Avatar
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    Here's the contact info for Eminent (click here).

  4. #4
    Seaman, Mezzoforte
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    Hi,
    Quote Originally Posted by Leisesturm View Post
    Once again I have run into a wall as none of the companies or individuals I am acquainted with who do console conversions understand how the Eminent keyboards are matrixed or how the stop controls and pistons are matrixed. They cannot make the Eminent keyboards or stops work with their MIDI encoders.
    The Omegan 9000 is an analog instrument, so I suspect that it is not matrixed but instead has a single bus bar for each keyboard and probably for the stop controls.
    Otherwisee trying to get the wiring diagrams is a good idea.

  5. #5
    Recruit, Pianissimo
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    Quote Originally Posted by astazou View Post
    The Omegan 9000 is an analog instrument, so I suspect that it is not matrixed but instead has a single bus bar for each keyboard and probably for the stop controls.
    Otherwisee trying to get the wiring diagrams is a good idea.
    Eminent told me a long time ago that they no longer support the analog instruments. They are essentially a new company now and have not kept any of the legacy documentation. I did make contact with someone in The Netherlands who sent me a schematic.

    The sound generation of the 9000 is analog in function, but the instrument itself is very solid state. It has discrete components on the circuit boards, but lots of IC's, and it also has MIDI. One technician that has looked at the instrument believes it is a matrixed keyboard, but it uses a non-standard matrix.

    A principal at the MIDI hardware company I contacted has seen pictures I took inside the console. They have suggested that I bypass any of the internal wiring and create a functional scanrow from the key contacts and bus bar. No details on HOW to do this, yet. They say that the schematic provides no details of how the key contacts are matrixed.

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