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Power Switch
From SnesLab
(Redirected from P3)
The Power Switch is in region A5 of the jwdonal schematic
The Power Switch on the Super Nintendo is the purple slider to the left of the Eject Button. It is connected in series with the 7805 and a Schottky diode cathode.
Unlike the Reset Slider, it is not spring-loaded and will stay in its open/closed position until toggled.