Hello "hazekwest", and welcome to NSR-WORLD.

If I remember correctly, the MC16 servo operates in the opposite direction to the later models. Most likely, but you will need to experiment, you should be able to swap the signal wires from the controller.

The best answer however, would be to source a working 1988 servo motor, as it sounds like the rest of the system is functioning normally. When you start mixing parts from other models, troubleshooting can become an issue later on.
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Andy.
NSR-WORLD.COM

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