The document is a user guide for the Yamaha PSR-A3 electronic keyboard. It details how to operate various functions such as One Touch Setting, Dual Voice, Harmony/Echo, Sustain, Reverb, Chorus, and DSP effects. The manual also covers recording, playback, and accompaniment modes like Intro, Main, and Ending. This manual is written in Japanese.
| Power Supply | DC IN 1D-12V |
|---|---|
| Battery Low Indicator | Btry Low |