R
(with price)
CTK-100
CTK-100
ELECTRONIC KEYBOARD
INDEX
CONTENTS
SPECIFICATIONS .......................................................................................................... |
1 |
BLOCK DIAGRAM ......................................................................................................... |
2 |
CIRCUIT DESCRIPTION ................................................................................................ |
3 |
TROUBLESHOOTING.................................................................................................... |
5 |
IC AND TRANSISTOR LEAD IDENTIFICATIONS ........................................................ |
6 |
SCHEMATIC DIAGRAMS .............................................................................................. |
7 |
PCB VIEW & MAJOR WAVEFORMS ............................................................................ |
8 |
EXPLODED VIEW ........................................................................................................ |
10 |
PARTS LIST ................................................................................................................. |
11 |
SPECIFICATIONS
General |
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Number of Keys: |
49 |
Polyphonic: |
8-note |
Preset Tones: |
100 |
Auto-Rhythms: |
100 |
Auto-Accompaniment: |
CASIO Chord/Fingered |
Demonstration Tune: |
Classical Medley |
Built-In Speakers: |
10 cm dia. 1.0W Input Rating: 2 pcs. |
Terminals: |
Output Jack [Output Impedance: 120 Ω, Output Voltage: 3 V (rms)MAX], |
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AC Adapter Jack (DC 9 V) |
Power Source: |
3-way AC or DC source |
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AC: AC adapter AD-5 |
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DC: 6 AA size dry batteries |
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Battery life: Approx. 3 hours (SUM-3/R6P) |
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Approx. 6 hours (AM-3/LR6) |
Power Consumption: |
5.0 W |
Dimentions: |
86 x 857 x 285 mm (HWD) |
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(3-3/8 x 33-3/4 x 11-1/4 inches) (HWD) |
Weight: |
3.2 kg (7.0 lbs) excluding batteries |
Standard Accessory: |
Music stand |
Electrical
Current Drain with 9V DC: |
47 mA ± 20% |
No Sound Output |
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Maximum Volume |
413 mA ± 20% |
with keys C2, D2, E2 and F2 pressed in |
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Car-Horn tone, Volume; Maximum |
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Output Level (Vrms with 8 Ω load each channel): |
76 mV ± 20% |
with key G2 pressed in Street Organ tone |
935 mV ± 20% |
Speaker Input Level: |
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with key G2 pressed in Street Organ tone |
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Minimum Operating Voltage: |
6.0 V |
— 1 —
— 2 —
BLOCK DIAGRAM
KO0~KO9
Output Jack
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CPU |
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MSM6387-13 |
Amplifier |
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Filter |
LA4598 |
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KI0~KI7 |
Main Volume |
T3/T4 |
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Speakers
Keyboard
VC +9V |
VDD +5V |
Power supply circuit
Switches
T2
Oscillator
CIRCUIT DESCRIPTION
Key and Switch Matrix
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KI0 |
KI1 |
KI2 |
KI3 |
KI4 |
KI5 |
KI6 |
KI7 |
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KO0 |
0 |
1 |
C2 |
C#2 |
D2 |
D#2 |
E2 |
F2 |
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(KC1) |
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KO1 |
2 |
3 |
F#2 |
G2 |
G#2 |
A2 |
A#2 |
B2 |
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(KC2) |
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KO2 |
4 |
5 |
C3 |
C#3 |
D3 |
D#3 |
E3 |
F3 |
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(KC3) |
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KO3 |
6 |
7 |
F#3 |
G3 |
G#3 |
A3 |
A#3 |
B3 |
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(KC4) |
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KO4 |
8 |
9 |
C4 |
C#4 |
D4 |
D#4 |
E4 |
F4 |
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(KC5) |
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KO5 |
Tone |
Rhythm |
F#4 |
G4 |
G#4 |
A4 |
A#4 |
B4 |
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(KC6) |
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KO6 |
Tempo |
Tempo |
C5 |
C#5 |
D5 |
D#5 |
E5 |
F5 |
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(KC7) |
Up |
Down |
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KO7 |
Start/ |
Fill-In |
F#5 |
G5 |
G#5 |
A5 |
A#5 |
B5 |
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(KC8) |
Stop |
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KO8 |
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Accomp. |
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Accomp. |
Accomp. |
Accomp. |
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Demo |
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C6 |
Volume 1 |
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Volume 4 |
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(KC9) |
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Volume 2 |
Volume 3 |
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(Min) |
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(Max) |
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KO9 |
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Power |
Normal |
Fingered |
CASIO |
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OFF |
Chord |
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Nomenclature of Keys
C#2 D#2 |
F#2 G#2 A#2 |
C#3 D#3 |
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 |
C2 |
D2 |
E2 |
F2 |
G2 |
A2 |
B2 |
C3 |
D3 |
E3 |
F3 |
G3 |
A3 |
B3 |
C4 |
D4 |
E4 |
F4 |
G4 |
A4 |
B4 |
C5 |
D5 |
E5 |
F5 |
G5 |
A5 |
B5 |
C6 |
— 3 —
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