hifi engine

SONY CD player CDP M20S

I want to use this unit as a stand alone device, the specification does not quote a supply voltage, only informs me that Supply is fed from main hifi stack, which I have no room for. I seem unable to get a block diagram or schematic with relevant voltages.Anybody know how I can supply the cd player seperately?Or does the cd player have to be connected to the stack for some reason? The connector number is cnj 11if that is any help.
Thanks