Panasonic SX-KC600 Manual page 56

C
MKB1 CIRCUIT
C10 C11
220P 220P
UNLESS OTHERWISE DIODES ARE RVD1SS133TA.
C12 C13 C14
220P 220P 220P
IC1
TC74HC138P
3 TO 8
+5D
DECORDER
16 VCC A0 1
15 0 A1 2
14 A2 3
1
13 2 4
CS2
12 3 Y 5
CS3
11 4 CS1 6
+5D
10 5 Y 7 7
9 6 GND 8
C3
50V0.022
C15
220P
C16
C17
220P 220P
CN12
1
2
+5D 3
4
5
6
7
8
9
CN11
1
2
3
4
5
6
7
8
9
10