5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
26/09/2K7
KEYBOARD PCB
DATE :-
SCHEMATIC CIRCUIT DIAGRAM OF
A M E N D
NO
DESCRIPTION APP CHK
DATE
tack switch
SW2
12
tack switch
SW3
1 2
tack switch
SW1
1 2
R1
1K
CN3 IN CONTROL PCB
1
2
3
4
5
D1
LED
CN4 OF OUTPUT BOARD
1
2
tack switch
SW4
1 2
