tma

Hi Folks, A user on this site sold me a MidiBox64 some years ago. This is the unit in question: http://www.midibox.org/midibox_gallery/dan11.jpg He told me to buy a certain power supply for it, I'm sure it was 600mA. I lost the one i had and was wondering if anyone could shed some light on what mA this unit requires. He said at the time it was to do with the display panel lighting up correctly. Any help would be much appreciated, Thanks :)