where can i buy a disk for a technics sx- kn1400 61 key key board and will it start up the keyboard as at the moment i do not get any sound and no lights come on
Have you tested the power supply?
a disc will do you know good to dead unit
you need to verify Internal power board is supplying 5v and 12V to the internal compoents
before amything will boot
the power light should be on
if itss not
you have a power probelm