Circuit Description - Casio CTK-2000 Service Manual And Parts List

KEY MATRIX
KC0
KI0 C2
KI1 G2#
KI2 E3
KI3 C4
KI4 G4#
KI5 E5
KI6 C6
KI7
G6#
NOMENCLATURE OF KEYS
C2 C3
BUTTON MATRIX
KC0
KI1 TONE
KI2 RHYTHM
KI9 0
KI10 7

CIRCUIT DESCRIPTION

KC1 KC2
C2# D2
A2 A2#
F3 F3#
C4# D4
A4 A4#
F5 F5#
C6# D6
A6 A6#
C4
KC1 KC2
TEMPO
SONG
UP
TEMPO
TYPE
DOWN
1 2
8 9
KC3 KC4
D2# E2
B2 C3
G3 G3#
D4# E4
B4 C5
G5 G5#
D6# E6
B6 C7
C5
KC3 KC4
GAME WAIT
START/
PHRASE
STOP
3 4
+ GUIDE
– 4 –
KC5 KC6
F2 F2#
C3# D3
A3 A3#
F4 F4#
C5# D5
A5 A5#
F6 F6#
C6
KC5 KC6
PLAY/
METRONOME
STOP
REW FUNCTION
5 6
PART
PAUSE SAMPLING
SELECT
KC7
G2
D3#
B3
G4
D5#
B5
G6
C7
KC7
REPEAT
FF
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