PSR-SX920 shut off at gig

[DrakeM]

This is the 2nd time my SX920 has shut off (not power down) and this time it was in the middle of a song. My PA system was plugged into the same power strip and it remained on.

Anyone else had this happen? or any idea why it occurs?

Today changed the System / Auto Power Off/ to the "Disabled" choice.