Please check the Local Sw and ensure that it is set to "ON". This connects (ON) or disconnects (OFF) the keyboard from the internal sound generator.
- Press and hold [SHIFT] and press the [16/MENU] button
- Use the [∧] [∨] and [<] [>] buttons to select SYSTEM SETTINGS
- Press [ENTER]
- Use the [∧] [∨] buttons to scroll down to and select Local Sw
- Use knob [2] to change the value to ON