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With the keyboards opened up you should see the key-switches / wires and may very well SEE what's wrong with them.
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With the cover opened up you should be able to get at the back of the switches for cleaning. Be carefull not to pull on the wires connecting the keyboards, you don't want more fixing to do. Then each keybed will basically do the same - either hinging up or lifting out once screws holding it place are removed. Kimball 700 Swinger Owner's Manual: Featuring The Entertainer/III by Kimball Book Condition: Used - Acceptable Book Description: Winona: Hal Leonard Publishing Corporation. Most organs will have a a few screws holding down the top cover, and most top cover will hinge upward once the screws are removed. Could anyone offer me some help with this I am new to this forum, but perhaps you would reply, Randy, if you have what Im looking for. I am interested in purchasing a Kimball Service Schematics and Troubleshooting Guide for this organ. A can of tuner cleaner can bring them back to life. I own a Kimball Entertainer III Swinger 1000 (Model 1075.) It was built in the 1970s. The switches are pretty simple switches and are usually open backed allowing dust and grime to get in and foul up the connection. And you'll probably need a tech for that.
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90% of the time this will make the keys work again - the other 10% it means either a resistor popped and needs replacing, or, if the keys that don't work are all the same note (like all the 'D' keys for instance), then the divider network has gone bad and needs replacing - in which case - good luck finding one. Or it can be as simple as cleaning up the wire/buss bar with a burnishing tool or 3M scour pad. The wires can break, needing to be replaced (a guitar string of similar diameter sometimes works). The wires can become dislodged, simply needing to be pushed back into place. It's a small wire similar to heavy guage guitar string that bends down and touches a buss bar to complete a circuit to play a note. Most keyboards, including organs of that era used a simple J-wire trigger for the key contacts. It might be a great opportunity for you to try some DIY servicing.
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