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Akai S1100 Rotary Encoder

Discussion in 'Troubleshooting and Repair' started by cassettica, Nov 4, 2012.

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  1. cassettica


    Nov 4, 2012
    I'm in the process of restoring/repairing an Akai S1100 sampler, and probably the biggest problem I've run into is that it has a broken rotary encoder. Actually, the encoder itself still works, but the shaft is completely broken off (I have to carefully use a screwdriver to turn it at the moment). I've looked around online, but sadly, this part (#ES365943 in the service manual) is nowhere to be found. I know that the encoder has 3 pins, 24 detents... but that's about it.

    Is there a way to test this part to figure out its specs and order an equivalent? I'm not terribly familiar with encoders, but from what I understand, simple clockwise/counter-clockwise data knobs like this typically use a standard 2 channel configuration. I opened up the encoder and it looks dead simple - 2 wipers make contact with 2 dotted carbon rings. Basically what I'm wondering is, regardless of the number of detents/pulses, shouldn't another encoder work as long as it outputs data that the sampler can read?

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