This manual covers the basic operation of the Casio LK-220 keyboard, including power‑on procedures, tone selection, and performance features. It explains how to use the various AR‑numbered functions such as rhythm, chord, and metronome settings.
The document also details the MIDI implementation, controller assignments, and mode settings (OMNI/Poly, MONO/Poly). Safety information, power requirements, and troubleshooting tips are included to help users get the most out of the instrument. This manual is written in Japanese.
Press the button labeled METRONOME (AR‑9) to turn the metronome on or off.
The Sostenuto pedal (listed as Sostenuto) sustains notes while allowing new notes to be played normally.