Ok, yep its the OLD mini, SNES2 , SNES 101 or New-Style Super NES.
I have two AC ADAPTERS
the original Output 10v 850 mA =Multimeter value 14.4v
generic for SNES/NES Output 9v 850mA =Multimeter value 9.4v
i attached an image on red circle its the dc jack pins i got the same voltage that comes out of the dc adapter if i have the console OFF i f i turn on its downs like 2 vlts
on the green circle its the ON/OFF Switch . In OFF position i got all the voltage form the DC ADAPTER. In ON position got .038v