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I have spend some time going over everything and believe I have narrowed it down to the camera. With the camera off the scope, nothing else, ie mount, guide scope, etc is sparking. I tried removing the camera connections (there are 3) one at a time, and it seems that the camera cooling power to the TEC is where i am getting the zap, which can traverse metal to metal contact to the scope, mount, etc. It may have to go back to ZWO, but it's out of warranty. I will switch over to one of my other cameras for testing tonight. If all ok tonight I will have to make a quick decision, as I am suppose to be going to Astrofest in less than three weeks - not enough time for ZWO to turn it around I fear.
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