Casio CTK-810 Service Manual

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CIRCUIT DESCRIPTION
KEY MATRIX
Note: Each key has two contacts, the first conatct 1 and second contact 2.
Key
Second contact
First contact
FI
KC
SI
2
1
F#3 G#3
A#3 C#4 D#4
F#4 G#4
A#4
C#5
D#5
F#5 G#5
A#5
F3 G3 A3 B3 C4 D4 E4 F4 G4 A4 B4 C5 D5 E5 F5 G5 A5 B5
C6
D#3
C2 D2
E2
F2
G2
A2 B2 C3 D3
E3
B6A6G6F6E6D6
C7
C#3A#2G#2
F#2D#2
C#2
A#6
G#6F#6D#6
C#6
NOMENCLATURE OF KEYS
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-810 Specifications

General

MIDI-keyboard number of keys	61 keys
Mac compatibility	Yes
Dimensions (WxDxH)	945 x 373 x 131 mm
Power requirements	9V DC, 7.7W
Compatible operating systems	- Windows XP/Vista - Mac OS X 10.3
Interface	USB

Weight and Dimensions

Weight	4800 g