Kenwood TK-3230 Service Manual page 37

OPTIONAL ACCESSORY (KSC-37: RAPID CHARGER)
■ Schematic Diagram
+DC IN
P1
1
DC
2 1 2
JACK
+
B23
R32
R14
C24
VCC2 VCC1
U4
1 3
I O
G
2
+ +
C34
R30
R25
Q1
L1
1 2
+
D1
B2
1
2
3
B3
4
C25
U2
5
6
R13
7
8
B6
B20
1
C71
2
3
R33
4
5
U3
6
B18
7
D4
R23
D5 8
R24
9
D6
R26
C65
C69
LED1
C70
D3
R4
+
VCC1
B4
16
B13
2 1
15
14 JK9
B5
13
12
11
10
9
R9 R10
C57
JK6
D8
14
U1D
18
B21
17
16
X1
15
1 2
10
B17
+
14 8
–
13
9
U1C
12
D7
11
10 R35
C61
R27
RED
GREEN
TK-3230
1
2
3
C56
U1B
5
+
7
–
6
R18
R19
C74
B7 JK10
U1A
3
4
+
1
–
2
11
C73
12
+
B16
–
13
JK5 B22
R34
D10
+VBAT
T
–VBAT
VCC2
37