Casio 76 Key Smartmedia Keyboard "internal 601" Questions

...601 no longer turns on. What could be the possible problem? strange and annoying

any power surges noticed

could be wall plug lead
or the 240 volt internal power transformer ...

...the cables when opening the unit. There is also a slight chance that a cable has come partway loose internally. If you are uncomfortable with opening the unit and keeping track of all the screws, ...