What is the lug/connection in the bottom right corner for? See image. Mentioned no where in the manuals or the drawings.
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What is the lug/connection in the bottom right corner for? See image. Mentioned no where in the manuals or the drawings.
I think it's for the earth/grounding cable point. The other side bottom left has a similar bolt and is labelled earth.
Could be a common or an isolated ground depending on how the PCB is laid out (sometimes when PCB are laid out common connections are mirrored) you could put a multimeter between the two to check but as marked by the symbol on the PCB/Case or as directed by the manual this should always be used as the grounding point.
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