Two wire power connector
Our PTA has a Econopop 14 and the schematics I find show 3 wire power connector. Ours has only two wires that were damaged and replaced. We're uncertain where the two should be reconnected.
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@fredpta post some pictures of what this all looks like, with your Question. That way we can see what you see. It is possible that your schematic shows a grounded connector and the device does not use one. It happens quite often :-) Adding images to an existing question
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