Sharp PC-G850 Power Supply

[blackjetrock]

Hi,

I've got a Sharp PC-G850VS and would like to attach a DC PSU to it to eliminate batteries. Does anyone else do this?
I tried Google translate on the text that is on the side of the PC-G850 next to the DC socket but couldn't get a translation. In the English manual it says that it's a 6V input and the adapter is an EA23E, but that is an 8.5V adapter. I've dismantled an 850V and it's tricky working out where the wires from the socket go as they are under a plastic sheet stuck to the PCB.
So, does anyone know what the voltage, current and polarity of the DC socket is?

regards
Andrew