CONTENTS
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Major waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Schematic Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
| 
 | SPECIFICATIONS | 
| GENERAL | 
 | 
| Number of keys: | 61 | 
| Polyphonic: | |
| Preset tones: | 128, Drum set: 8 | 
| Keyboard controls: | Touch response: On/Off | 
| Digital effects: | 10, including  | 
| 
 | Phase Shifter, Organ SP, Enhancer, Flanger, EQ Loudness | 
| Modulation: | On/Off, Depth setting range: 0 - 127 | 
| Pitch bend wheel: | Bend sense: 0 - 12 | 
| Tuning control: | 440Hz ± 50 cents | 
| 12 cm dia. 2 W input rating: 2 pcs. | |
| Terminals: | Phone Jack [Output impedance: 100 Ω, Output voltage: 4.5 V(rms) MAX], | 
| 
 | MIDI Jacks (IN, OUT), Assignable Jack, AC Adapter Jack (9 V) | 
| Auto power off: | Approximately 6 minutes after the last operation | 
| Power source: | |
| 
 | AC: AC adapter | 
| 
 | DC: 6 D size dry batteries | 
| Power consumption: | 7.7 W | 
| Dimensions (HWD): | 129 x 942 x 367 mm  | 
| Weight: | 5.3 kg (11.7 lbs) excluding batteries | 
ELECTRICAL
| Current drain with 9 V DC: | 294 mA ± 20% | 
| No sound output | |
| Maximum volume | 940 mA ± 20% | 
| with 32 polyphonic notes in tone No. 078 | 
 | 
| Volume; maximum, Velocity: maximum | 
 | 
| Phone output level (Vrms with 8 load each channel): | 100 mV ± 20% | 
| with key A5 pressed in tone No. 078 | |
| Line output level (Vrms with 47 k load each channel): | 1350 mV ± 20% | 
| with key A5 pressed in tone No. 078 | |
| Minimum operating voltage: | 6.0 V | 
— 2 —