manual : http://www2.yamaha.co.jp/manua…/english/synth/QY70E1.PDF
ansonsten yamahasynth.com besuchen.
bevor du fragst: nein, ich besitze kein solches gerät.
edith : factory reset geht so:
1) Power on while holding the [SONG], [PATTERN] and [>>] FORWARD buttons simultaneously. A diagnostics screen will appear.
2) Release the buttons and press the [F3] button (third button down on the right side of the screen).
was google alles kann