This post is for Alec for he answered my question sometime ago.

Alec, you said and I quote, "it's normal on the 7k, just different internal architechture from the 6k. The manual times are typo errors carried over from the 6k manual. Always save before switching off, SD makes it easy. I would never trust my work to internal power residue, even on the older machines"

The above made me feel better about the operation of the KN7000 HOWEVER, when leaving SEQUENCER, it states in the keyboard ITSELF that the memory lasts 80 minutes therefore, this is not a manual error. One would think that Technics would have corrected this in their keyboard. Knowing from experience that it doesn't last 80 minutes, I had a song in SEQUENCER, shut down and waited at least 2 minutes before turning it on and everything was there. I then shut down and waited about 10 minutes, turned on the keyboard and it was gone. Since this 80 minutes of memory is shown in the keyboard, your thoughts, Sir.

S