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General| Brand | Yamaha |
|---|---|
| Model | PortaSound PSS-21 |
| Type | Keyboard |
| Polyphony | 8-note |
| Weight | 1 kg |
| Power Supply | 6 AA batteries or AC adapter |
| Output | Headphone jack |
Features 100 AWM voices utilizing digital recordings of actual instruments.
Offers versatile music styles, with specific numbers for PSS-31, PSS-21/11.
Provides demonstration songs for playing along with the Minus-one function.
Includes programmed rhythms and chord progressions for PSS-31, PSS-21/11.
Offers drum and percussion sounds for playing on PSS-31 and PSS-21.
Features a high-quality stereo amplifier/speaker system for PSS-31/21.
Advise to avoid direct sunlight, heat, humidity, and dust for optimal performance.
Warns against using near TVs/radios to prevent interference noise.
Emphasizes protecting from strong impact, drops, and heavy objects.
Advise to turn off the power and remove batteries for long periods.
Instructions for cleaning exterior with a dry or slightly moist cloth, avoiding solvents.
Explains running on batteries or optional Yamaha power adaptors.
Details connecting to a wall socket using Yamaha adaptors only.
Guide on inserting six 1.5-volt AA batteries correctly.
Advises on replacing batteries when voltage is low, never mixing old/new.
Covers headphone and auxiliary output jacks for practice and external connections.
Instructions for connecting headphones for private practice, disabling speakers.
How to connect to external amplifiers or stereo systems via the output jack.
Explains selecting between STYLE, VOICE, and SONG modes for different operations.
Guide to selecting and playing demonstration songs using the numeric keypad and DEMO button.
How to use +/- buttons to step through numbers in Modes, with a wrap-around feature.
Details click sounds, entry speed, and handling of invalid numbers on the numeric keypad.
Steps to select a voice using the MUSIC MODE SELECTOR and Numeric Keypad.
Explains how HARMONY voices work and how harmony depends on selected voice and mode.
Explains BASS CHORD HOLD setting which generates chords and bass without rhythm.
Steps to select a style using the MUSIC MODE SELECTOR and Numeric Keypad.
How to start rhythm by pressing a key in the AUTO ACCOMP. SECTION.
How to use TEMPO buttons to change the tempo of the playing style.
Explains how to produce chords using Single Finger or Fingered techniques for Auto Accomp.
Details how the PSS-31 uses Multi Fingering Auto Accomp. with Single Finger or Fingered modes.
Information on changing voices and styles, and how tempo is affected.
Details on adjusting tempo using buttons and restoring default settings.
Steps to select desired song or jam track pattern using the MUSIC MODE SELECTOR and Numeric Keypad.
How to play full songs with DEMO or use Minus-one/Jam Track with START/STOP.
Details on automatic voice selection, changing voices, and tempo presets.
How to play drum and percussion sounds alone or with rhythm patterns.
Explanation of four selectable sets for drum pads, changed via PAD SELECT buttons.
List showing which drum and percussion sounds are assigned to keys for PSS-11, PSS-21, PSS-31.
Lists voices available for specific Style and Jam Track numbers across models.
Provides solutions for common problems like buzzing, rhythm stops, or note loss.
Warns about using only approved power supplies and avoiding extreme volume levels.
Detailed technical specifications for PSS-31, PSS-21, and PSS-11 models.
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