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CONTENTS
Specification .................................................................... 2
Block Diagram ................................................................. 3
Circuit Description ........................................................... 3
PCB View and Major Waveforms .................................... 5
Schematic Diagrams ....................................................... 6
Exploded View................................................................. 8
Parts List ......................................................................... 9
SPECIFICATIONS
General
Number of Keys: 32
Polyphonic: 4-note
Preset Tones: 8
Preset Effects: 6
Preset Phrases: 4
Demonstration Tunes: 6
Function Dial: Magical sound dial
Built-In Speaker: 8 cm dia. 1.0 W Input Rating: 1 pce.
Power Source: 5 AA size dry batteries
Battery life: approx. 6 hours (SUM-3/R6P)
Power Consumption: 1.5 W
Dimensions (HWD): 58 x 439 x 205 mm
(2-1/4 x 17-1/4 x 8-1/16 inches)
Weight: 0.99 kg (2.2 lbs) including batteries
Electrical
Current Drain with 7.5 V DC:
NoSound Output 33 mA +/-20%
Maximum Volume 170 mA +/-20%
with keys G3, A3, B3 and C4 pressed
in Street Organ tone, Volume; Maximum
Speaker output level at 4 Ω load: 640 mV +/-20%
with key C4 pressed in Street Organ tone
Volume; Maximum
Minimum Operating Voltage: 5.0 V
Nomenclature of Keys
F#3 G#3 A#3 C#4 D#4 F#4 G#4 A#4 C#5 D#5 F#5 G#5 A#5
F3 G3 A3 B3 C4 D4 E4 F4 G4 A4 B4 C5 D5 E5 F5 G5 A5 B5 C6