Hi Ron,
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First off, am I understanding the you can¡¯t slew the mount with the physical buttons on the back of the gemini hand controller? How about the buttons on the screen, do these work? When you press the physical buttons, do the ones on the screen react? (The ones on the screen show as being activated when you press the ones on the back).
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The best way to know for sure is by using an eyepiece and looking through it while trying to move the scope, even if the speed is set to guide you should be able to see the star move. Maybe the speeds are misconfigured in the HC? Or the physical buttons¡¯ ribbon cable is disconnected inside the HC?
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hope this helps
