Ic Block Diagrams - Sony SA-VE702 Sevice Manual

• IC Block Diagrams

IC301 STK350-230 (MAIN Board)
TR1
INPUT 1 TR2
NF
2
3
4
-VEOUT 5
+VEOUT 6
R4
TR5
7
V
SS
GND
8
D1 D2
R5
V 9
CC
R9 TR8
IC602 NJM2072D (AUTO POWER Board)
INPUT 1
GAIN CONT 2
3
AMP OUT
GND 4
TR3 R1
TR4
R2
R6
TR7
TR6
R3
D4 D3
R8 R7
8 VCC
OUTPUT2
7
6 OUTPUT1
RECOVERY
5
TIME CAP
IC303 µPC1237HA (MAIN Board)
OVER LOAD DET
OFFSET DET
LATCH/
AUTORESET
AC OFF
DET
1 2 3 4
V ON
CC
F/F
MUTE
5 6 7 8
7