Circuit Description - Casio LK-127 Service Manual & Parts Manual

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„ Nomenclature of Keys
C2
„ Key Matrix
KC0
KI0
C2
KI1
G2#
KI2
E3
KI3
C4
KI4
G4#
KI5
E5
KI6
C6
KI7
G6#
„ Button Matrix
KI0S
KI1S
KI2S
KI3S
KI4S
KI5S
START/STOP
TEMPO UP/
KI6S
VALUE
KI7S

CIRCUIT DESCRIPTION

C3
C4
KC1
KC2
C2#
D2
A2
A2#
F3
F3#
C4#
D4
A4
A4#
F5
F5#
C6#
D6
A6
A6#
KO8S
KO9S
0
1
2
3
4
TEMPO DOWN/
VALUE
SYNCHRO/
FILL-IN
C5
KC3
KC4
D2#
E2
B2
C3
G3
G3#
D4#
E4
B4
C5
G5
G5#
D6#
E6
B6
C7
KO10S
5
TONE
6
RHYTHM
7
SONG BANK
8
PART SELECT
ONE KEY PLAY
9
LEFT
ONE KEY PLAY
RIGHT
KEY LIGHT
DEMO
– 4 –
LK-127
C6
KC5
KC6
KC7
F2
F2#
C3#
D3
D3#
A3
A3#
F4
F4#
C5#
D5
D5#
A5
A5#
F6
F6#
KO11S
STEP 1
STEP 2
STEP 3
SPEAK
FINGERED
(POWER/MODE)
CASIO CHORD
(POWER/MODE)
NORMAL
(POWER/MODE)
OFF
(POWER/MODE)
C7
G2
B3
G4
B5
G6

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