Casio CTK-480 Service Manual

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CIRCUIT DESCRIPTION
KEY MATRIX
KI0 KI1 KI2 KI3 KI4 KI5 KI6 KI7
KO0 C1 G#1 E2 C3 G#3 E4 C5 G#5
KO1 C#1 A1 F2 C#3 A3 F4 C#5 A5
KO2 D1 A#1 F#2 D3 A#3 F#4 D5 A#5
KO3 D#1 B1 G2 D#3 B3 G4 D#5 B5
KO4 E1 C2 G#2 E3 C4 G#4 E5 C6
KO5 F1 C#2 A2 F3 C#4 A4 F5
KO6 F#1 D2 A#2 F#3 D4 A#4 F#5
KO7 G1 D#2 B2 G3 D#4 B4 G5
KO8 0 1 2 3 4 Start/Stop
Tempo
Up
Volume
Up
KO9 56789
Tempo
Down
Volume
Down
Synchro/
Fill-In
K10 Tone Rhythm
Song
Bank
Melody
On/Off
K11 Fingered
CONCERT
Chord
Normal Power Off
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
D#3
C2 D2
E2
F2
G2
A2 B2 C3 D3
E3
B6A6G6F6E6D6
C7
C#3A#2G#2
F#2D#2
C#2
A#6
G#6F#6D#6
C#6

Casio CTK-480 Specifications

General

Brand	Casio
Model	CTK-480
Category	Electronic Keyboard
Language	English