— 2 —
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Key and switch Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Schematic Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
PCB View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Major Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Exploded View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Electrical
Current drain with 9 V DC:
No Sound Output
80 mA
±
20%
Maximum volume
350 mA
±
20%
with any 10 keys pressed in Piano tone
Volume: Maximum, Sustain: ON
Phone output level (Vrms with 8
Ω
load each channel)
87 mV
±
20 %
with key C5 pressed in Piano tone, Volume: Maximum
Line output level (Vrms with 47 k
Ω
load each channel)
470 mV
±
20 %
with key C5 pressed in Piano tone, Volume: Maximum
Minimum operating voltage:
6.5 V
General
Number of keys:
61
Polyphonic:
10-note
Preset tones:
5, including: Piano, Harpsichord, Vibraphone, Jazz organ, Pipe organ
Demonstration tune:
Ballade Pour Adeline
Tuning control:
442 Hz
±
30 cents
Built-in speakers:
12.0 cm dia. 1.1 W Input Rating: 2 pcs.
Terminals:
Output jack [Output impedance:30
Ω
, Output voltage: 1.2 V (rms) MAX]
Sustain jack, AC adapter Jack (DV 9 V)
Power source:
DC: 6 D size dry batteries
Battery life: Approx. 10 hours (SUM-1/R20P)
AC: AC Adapter AD-5
Power consumption:
4.2 W
Dimensions (HWD):
116 x 970 x 364 mm
(4-5/8 x 38-1/4 x 14-3/8 inches)
Weight:
8.4 kg (18.5 lbs) including batteries
SPECIFICATIONS
CONTENTS
