AP420CH1A is a MIDI interface adapter that supports MIDI basic channel 1-16, note number 0-127, and true voice program change. It can be used with a variety of MIDI devices.
This manual provides step‑by‑step instructions for operating the Casio AP‑420 digital piano, covering hardware layout, function keys, tone selection, and built‑in effects. It also details how to connect accessories such as the USB port, SD card, and external pedals.
Additional sections describe the metronome, recording features, MIDI implementation, computer connection requirements, and troubleshooting tips, helping users get the most out of the instrument. This manual is written in Chinese.
| Built‑in tones | 16 |
|---|
Hold the FUNCTION button and use the TEMPO keys to set a speed between 20 and 255 beats per minute.