Gonna need a multimeter for this one. Sounds like you may have a faulty connection somewhere in the goto. Are you getting any power to it at all??. You may also have a short. If they had a fuse, I'd say it was that. But I'm not sure a Celestron goto has an inbuilt fuse. You may even have a shot controller PCB. In which case, it's a repair job for the technicians.
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