— 28 —
IC551
STK350-230
IC701
µ
PC2581V
IC950
NJM2103D
2
3
5
4
6
7
9
8
1
MUTE
+ VOUT1
– VOUT1
COMP1
MF1
IN1
GND
IN2
NF2
COMP2
– VOUT2
+ VOUT2
VCC1
VCC2
VEE
PROTECTOR
BIAS CIRCUIT
REG
DRIVE
PRE
DRIVE
11
10
12
13
15
14
DRIVE
PRE
DRIVE
1
2
3
4
5
6
7
8
V+
VSB/SESIN
VSA
RESET
GND
OUTC
VSC
CR
VREF
+
–
–
+
–
+
–
+
Q
R
S
IC401
LC7822
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
CONTROL
LATCH
SHIFT RESISTOR
LEVEL SHIFT
CL
DI
CE
VEE
OUT
IN
OUT
IN
OUT
IN
VSS
S
RESET
VDD
OUT
IN
IN
OUT
IN
OUT
IN
1
2
3
4
5
6
7
8
9
TR3
R1
R2
TR4
TR6
TR7
R4
R9
TR5
TR1
TR2
R6
D4 D3
R7
R8
TR8
D1 D2
R5
R3
INPUT
NF
-VEOUT
+VEOUT
V
SS
GND
V
CC
SUB
