Technics SL 1000 not "A" ground


I just started using a Technics SL 1100 turntable. On the back, there are 2 screw terminals, which are labelled “GND” and “E”. They are currently jumpered together. Anyone know what the difference is, and should they be jumped, or used separately somehow? Thank you.
128x128dalehimself
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I've kind of done this, and so far, without the jumper, it seems to be quietest when I run a wire from the ground terminal to the plate the tonearm is mounted on!
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