— 4 —
KC0
KC1
KC2
KC3
KC4
KC5
KC6
KC7
FI0
C2
1
C2#
1
D2
1
D2#
1
E2
1
F2
1
F2#
1
G2
1
SI0
C2
2
C2#
2
D2
2
D2#
2
E2
2
F2
2
F2#
2
G2
2
FI1
G2#
1
A2
1
A2#
1
B2
1
C3
1
C3#
1
D3
1
D3#
1
SI1
G2#
2
A2
2
A2#
2
B2
2
C3
2
C3#
2
D3
2
D3#
2
FI2
E3
1
F3
1
F3#
1
G3
1
G3#
1
A3
1
A3#
1
B3
1
SI2
E3
2
F3
2
F3#
2
G3
2
G3#
2
A3
2
A3#
2
B3
2
FI3
C4
1
C4#
1
D4
1
D4#
1
E4
1
F4
1
F4#
1
G4
1
SI3
C4
2
C4#
2
D4
2
D4#
2
E4
2
F4
2
F4#
2
G4
2
FI4
G4#
1
A4
1
A4#
1
B4
1
C5
1
C5#
1
D5
1
D5#
1
SI4
G4#
2
A4
2
A4#
2
B4
2
C5
2
C5#
2
D5
2
D5#
2
FI5
E5
1
F5
1
F5#
1
G5
1
G5#
1
A5
1
A5#
1
B5
1
SI5
E5
2
F5
2
F5#
2
G5
2
G5#
2
A5
2
A5#
2
B5
2
FI6
C6
1
C6#
1
D6
1
D6#
1
E6
1
F6
1
F6#
1
G6
1
SI6
C6
2
C6#
2
D6
2
D6#
2
E6
2
F6
2
F6#
2
G6
2
FI7
G6#
1
A6
1
A6#
1
B6
1
C7
1
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
Содержание LK-90TV
Страница 1: ...ELECTRONIC KEYBOARD LK 90TV JUN 2004 LK 90TV Ver 1 Jun 2005 INDEX...
Страница 8: ...6 PRINTED CIRCUIT BOARDS M649 MAIN PCB Bottom View Top View...
Страница 9: ...7 M649 SUB1 PCB M649 SUB2 PCB Bottom View Top View Bottom View Top View...
Страница 10: ...8 M649 CONSOLE PCB Top View Bottom View...
Страница 12: ...10 M474 LED1 PCB Top View Bottom View M474 LED2 PCB Top View Bottom View...
Страница 14: ...12 M6111T KEY1 PCB M6111T KEY2 PCB Top View Bottom View Top View Bottom View...
Страница 24: ...22 SCHEMATIC DIAGRAMS M649 MAIN PCB 1 2...
Страница 25: ...23 M649 MAIN PCB 2 2...
Страница 26: ...24 M649 SUB PCB 1 2...
Страница 27: ...25 M649 SUB PCB 2 2...
Страница 28: ...26 M649 CONSOLE PCB...
Страница 29: ...27 M649 LCD PCB...
Страница 30: ...28 CSM446 LED PCBs...
Страница 31: ...29 M6111T KEY1 PCB...
Страница 32: ...30 M6111T KEY2 PCB...