Casio CTK-900 Service Manual

— 4 —
CIRCUIT DESCRIPTION
KEY MATRIX
BUTTON MATRIX
KC4
PART
EDIT
TONE
EDIT
SETTING
TEMPO UP
BANK
EFFECT
EDIT
KC5
SEQ
ACCOMP
VOLUME
ONE TOUCH
PRESET
REGISTRATION
1
TEMPO DOWN
SMF PLAY
KI0
KI1
KI2
FI8
FI9
FI10
KC2
DSP
ON / OFF
PIANO
SETTING
RHYTHM
CURSOR 컅
CURSOR 왕
TONE
KC3
CURSOR 왓
EXIT
CURSOR 컄
7
4
DRAWBAR
KC0
9
6
3
+
LAYER
DEMO
KC1
8
0
1
2
—
5
KC6
STORE
INTRO/
ENDING 2
INTRO/
ENDING 1
SPLIT
AUTO
HARMONIZE
START/STOP
KC7
SYNCRO/
FILL-IN NEXT
VARIATION/
FILL-IN 2
VARIATION/
FILL-IN 1
REGISTRATION
4
REGISTRATION
3
REGISTRATION
2
KC0 KC1 KC2 KC3 KC4 KC5 KC6 KC7
FI0 C2
1
C#2
1
D2
1
D#2
1
E2
1
F2
1
F#2
1
G2
1
SI0 C2
2
C#2
2
D2
2
D#2
2
E2
2
F2
2
F#2
2
G2
2
FI1 G#2
1
A2
1
A#2
1
B2
1
C3
1
C#3
1
D3
1
D#3
1
SI1 G#2
2
A2
2
A#2
2
B2
2
C3
2
C#3
2
D3
2
D#3
2
FI2 E3
1
F3
1
F#3
1
G3
1
G#3
1
A3
1
A#3
1
B3
1
SI2 E3
2
F3
2
F#3
2
G3
2
G#3
2
A3
2
A#3
2
B3
2
FI3 C4
1
C#4
1
D4
1
D#4
1
E4
1
F4
1
F#4
1
G4
1
SI3 C4
2
C#4
2
D4
2
D#4
2
E4
2
F4
2
F#4
2
G4
2
FI4 G#4
1
A4
1
A#4
1
B4
1
C5
1
C#5
1
D5
1
D#5
1
SI4 G#4
2
A4
2
A#4
2
B4
2
C5
2
C#5
2
D5
2
D#5
2
FI5 E5
1
F5
1
F#5
1
G5
1
G#5
1
A5
1
A#5
1
B5
1
SI5 E5
2
F5
2
F#5
2
G5
2
G#5
2
A5
2
A#5
2
B5
2
FI6 C6
1
C#6
1
D6
1
D#6
1
E6
1
F6
1
F#6
1
G6
1
SI6 C6
2
C#6
2
D6
2
D#6
2
E6
2
F6
2
F#6
2
G6
2
FI7 G#6
1
A6
1
A#6
1
B6
1
C7
1
SI7 G#6
2
A6
2
A#6
2
B6
2
C7
2

Casio CTK-900 Specifications

General

Brand	Casio
Model	CTK-900
Category	Electronic Keyboard
Language	English