If your keyboard's physical screen is showing solid blocks or has gone blank, try the following: For the Photon X25
To understand why the Photon was created, one must understand the state of music technology in the mid-to-late 1990s. The MIDI controller market was in its adolescence. The heavy, weighted keyboards of the 1980s were giving way to lightweight, plastic "synth-action" boards designed for portability and electronic manipulation. alesis photon
