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General| Number of Keys | 32 |
|---|---|
| Polyphony | 8 |
| Rhythms | 10 |
| Speakers | Yes |
| Type | Portable Keyboard |
| Brand | Yamaha |
| Model | Portasound PS-20 |
| Power Supply | Batteries or AC adapter |
| Output | Headphones |
Details on how to attach the music rest to the unit.
Explains storing and selecting power sources like battery or AC adapter.
Instructions for installing batteries into the battery pack case.
Instructions for installing and using the AC power adaptor.
Visual representation of the PS-20 and PS-10 keyboard layout with numbered parts.
Detailed explanations of numbered keyboard controls and features.
Instructions on powering on, selecting voices, and setting volume to begin playing.
Guide to selecting and starting rhythms, adjusting tempo and volume.
How to add chord and bass accompaniment using specific buttons and controls.
Instructions for adding automatic arpeggio effects to the music.
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