Circuit Description - Casio CTK-2300 Service Manual

KEY MATRIX
KID0
KOD8 —
KOD9 3
KOD10 6
KOD11 9
KOD12 E2
NOMENCLATURE OF KEYS
C#2 D#2 F#2 G#2 A#2
C2 D2 E2 F2 G2 A2 B2

CIRCUIT DESCRIPTION

KID1 KID2
+ 0
2 1
5 4
8 7
MELODY PLAY/
ON/OFF PAUSE
C#3 D#3 F#3 G#3 A#3
C3 D3 E3 F3 G3 A3 B3
— 3 —
KID3 KID4
TEMPO TEMPO
START/ SYNCRO/
STOP FILL IN
TRANSPOSE/ SONG
TUNE BANK
CASIO
FINGERED
CHORD
STOP
C#4 D#4 F#4 G#4 A#4
C4 D4 E4 F4 G4 A4 B4
KID5 KID6
VOLUME VOLUME
ACCOMP
F5
VOLUME
RHYTHM TONE
NORMAL OFF
C#5 D#5 F#5 G#5 A#5
C5 D5 E5 F5 G5 A5 B5 C6