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.