Casio LK-90TV User Manual

— 4 —
KC0 KC1 KC2 KC3 KC4 KC5 KC6 KC7
FI0 C21 C2#1 D21 D2#1 E21 F21 F2#1 G21
SI0 C22 C2#2 D22 D2#2 E22 F22 F2#2 G22
FI1 G2#1 A21 A2#1 B21 C31 C3#1 D31 D3#1
SI1 G2#2 A22 A2#2 B22 C32 C3#2 D32 D3#2
FI2 E31 F31 F3#1 G31 G3#1 A31 A3#1 B31
SI2 E32 F32 F3#2 G32 G3#2 A32 A3#2 B32
FI3 C41 C4#1 D41 D4#1 E41 F41 F4#1 G41
SI3 C42 C4#2 D42 D4#2 E42 F42 F4#2 G42
FI4 G4#1 A41 A4#1 B41 C51 C5#1 D51 D5#1
SI4 G4#2 A42 A4#2 B42 C52 C5#2 D52 D5#2
FI5 E51 F51 F5#1 G51 G5#1 A51 A5#1 B51
SI5 E52 F52 F5#2 G52 G5#2 A52 A5#2 B52
FI6 C61 C6#1 D61 D6#1 E61 F61 F6#1 G61
SI6 C62 C6#2 D62 D6#2 E62 F62 F6#2 G62
FI7 G6#1 A61 A6#1 B61 C71
CIRCUIT DESCRIPTION
KEY MATRIX
Note: Each key has two contacts, the first contact 1 and second contact 2.
Key
Second contact
First contact
FI
KC
SI
2
1
NOMENCLATURE OF KEYS
C2 C3 C4 C5 C6 C7

Casio LK-90TV Specifications

General

Number of Keys	61
Lesson Function	Yes
Display	LCD
MIDI	Yes
Speakers	2
Terminals	MIDI In/Out
Power Supply	AC Adapter or Batteries