Circuit Description - Casio PX-110 Service Manual

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KEY MATRIX
KC0
FI0
A01
A0#1
SI0
A02
A0#2
FI1
F11
F1#1
SI1
F12
F1#2
FI2
C2#1
SI2
C2#2
FI3
A21
A2#1
SI3
A22
A2#2
FI4
F31
F3#1
SI4
F32
F3#2
FI5
C4#1
SI5
C4#2
FI6
A41
A4#1
SI6
A42
A4#2
FI7
F51
F5#1
SI7
F52
F5#2
FI8
C6#1
SI8
C6#2
FI9
A61
A6#1
SI9
A62
A6#2
FI10
F71
F7#1
SI10
F72
F7#2
NOMENCLATURE OF KEYS
A#0
C#1
D#1
F#1
G#1
A#1
C#2
A0 B0
C1 D1 E1 F1 G1 A1 B1
C2 D2 E2 F2 G2 A2 B2 C3 D3 E3

CIRCUIT DESCRIPTION

KC1
KC2
B01
C11
B02
C12
G11
G1#1
G12
G1#2
D21
D2#1
E21
D22
D2#2
E22
B21
C31
B22
C32
G31
G3#1
G32
G3#2
D41
D4#1
E41
D42
D4#2
E42
B41
C51
B42
C52
G51
G5#1
G52
G5#2
D61
D6#1
E61
D62
D6#2
E62
B61
C71
B62
C72
G71
G7#1
G72
G7#2
D#2
F#2
G#2
A#2
C#3
D#3
F#3G#3 A#3 C#4D#4
F3 G3 A3 B3 C4 D4 E4 F4 G4 A4 B4 C5 D5 E5 F5 G5 A5 B5 C6
KC3
KC4
KC5
C1#1
D11
C1#2
D12
A11
A1#1
A12
A1#2
F21
F2#1
F22
F2#2
C3#1
D31
C3#2
D32
A31
A3#1
A32
A3#2
F41
F4#1
F42
F4#2
C5#1
D51
C5#2
D52
A51
A5#1
A52
A5#2
F61
F6#1
F62
F6#2
C7#1
D71
C7#2
D72
A71
A7#1
A72
A7#2
F#4G#4A#4
C#5D#5
F#5G#5A#5
— 3 —
KC6
KC7
D1#1
E11
D1#2
E12
B11
C21
B12
C22
G21
G2#1
G22
G2#2
D3#1
E31
D3#2
E32
B31
C41
B32
C42
G41
G4#1
G42
G4#2
D5#1
E51
D5#2
E52
B51
C61
B52
C62
G61
G6#1
G62
G6#2
D7#1
E71
D7#2
E72
B71
C81
B72
C82
C#6
D#6
F#6
G#6
A#6
C#7
D#7
F#7
G#7
D6
E6
F6
G6
A6
B6
C7
D7
E7
F7
G7
A7
A#7
B7
C8

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