Cómo resetear Sintetizador Yamaha?

Alguien me puede ayudar por favor? me gustaría saber cómo resetear un sintetizador Yamaha AN1x, si alguien lo sabe se lo agradecería, en su defecto, si alguien sabe cómo resetear algún otro sinte de la misma marca me podría valer para probar.

Gracias.

How do I perform a factory reset of the AN1x?

1. Turn OFF the power.
2. Press and hold the [7], [8] and [9] buttons down simultaneously while turning ON the power.
3. Continue to hold the buttons down until a dialog box appears on the screen displaying, 'Factory Set? [1---9]'.
4. Release the [7], [8] and [9] buttons and choose one of the following resets by pressing the corresponding button:
Button [1]: Loads Voices 1-64.
Button [2]: Loads Voices 65-128.
Button [3]: Loads all 128 Voices.
Button [4]: Loads all Voices sorted by Voice Category.
Button [5]: Loads User Patterns 1-64.
Button [6]: Loads User Patterns 65-128.
Button [7]: Loads all User Patterns.
Button [8]: Loads system data.
Button [9]: Loads all Voices, User Patterns and system data (full factory reset).
5. Press the [YES/ENTER] button. The AN1X will execute the Initialization procedure and return to 'Play mode'.

Muchas gracias, probaré!