Google'a ID:Core v3 manual yazıyorsun....
karşına çıkan pdf dosyasını okumaya başlıyorsun...
ve şu yazıyı görünce aha tamam diyorsun:
Factory Reset The default factory patches and settings can be restored to your amplifier at any time. Simply hold down the MOD, DLY and REV switches simultaneously, whilst switching on the amplifier. The voice LED will count down to indicate that a factory reset is imminent. If any of the MOD, DLY and REV switches are released before the Voice LEDs have switched off, then the operation is cancelled and the amplifier will remain unaffected. Finally, switch the amplifier power off to complete the process. When powered on, your amplifier will be restored to the factory default settings.
