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Piano, Organ, and Keyboard/kimball electric mod l 100 swinger

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Question
I have a Kimball swinger electric organ mod l 100 it sounds like everything is going at once this happens when turned on I would like to know what you think it might be and if its a costly repair  thank you

Answer
Hello Doug!  The Swinger 100 was made in 1971 so I assume it uses a diode matrix for the keying.  The most common cause of a grand cipher would be a voltage or ground has become disconnected from the keyboards.  Some keyboards are designed to work with a voltage of say 12 volts.  When the voltage drops by depressing a key, the logic recognizes that drop as a signal for it to turn on the note. Therefore, if the entire keyboard were to drop to zero volts, the logic would assume you want every note on the keyboard to sound.  The good news is, the logic is probably OK and it's doing what it thinks it should be doing.  The bad news is the hold-up voltage is missing.  The problem could be as simple as a disconnected wire somewhere, or one of the voltages from the power supply has failed.  Of course other causes are possible, but I'd check these possibilities first.  It could be by simply pulling and prodding around inside you may find a bad connection that could correct itself just by bumping into the connection.  We can only hope for the best.  Otherwise, a trained technician will need to troubleshoot the circuitry.  

Piano, Organ, and Keyboard

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Thomas Britanyak

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I am a full time organ/piano technician who has been actively involved with the design, building, repair, maintenance and installation of organs and pianos for 35 years. I began as a keyboard instrument apprentice and hold degrees in music and electronics. If you need a piano's date of manufacture, please go to http://www.pianoexchange.com/howold.htm or http://www.bluebookofpianos.com/pianoage.html I am happy to answer musical or technical questions, however, I CANNOT offer appraisals on pianos or organs. Please do not ask what an instrument is worth. For this service please contact an experienced local appraiser or try the following links: https://mmm1100.verio-web.com/blueb1/appraisal.html or http://www.57piano.com/questions.htm

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I am a full time organ/piano technician who has been actively involved with the design, building, repair, maintenance and installation of organs and pianos for 35 years. I began as a keyboard instrument apprentice and hold degrees in music and electronics.

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I am a full time organ/piano technician who has been actively involved with the design, building, repair, maintenance and installation of organs and pianos for 35 years. I began as a keyboard instrument apprentice and hold degrees in music and electronics.

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