SA-WSRD15 - Sony Audio Service Manual (repair manual). Page 20

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20
SA-WSRD15
IC943
SI-3033KM-TL
IC921
STR-V153
IC941
SI-3120KM-TL
IC942
SI-3050KM-TL
5
8
4
1 2 3
GND
6
FB/OLP
7
N.C.
STARTUP
VCC
D
N.C.
SOURCE/OCP
+
+
+
+
+
+
+
Q S
R
DISCHARGE
BLANKING
BUFFER
TSD
DELAY
LATCH
INTERNAL
BIAS
OFF TIMER
PRC LATCH
BURST
FB
OCP
OLP
DRIVE
OVP
UVLO
POWER
MOS FET
1
VC
TSD
2
VIN
3
GND
4
VOUT
5
ADJ
+
REF
1
VC
TSD
2
VIN
3
GND
4
VOUT
5
ADJ
+
REF
1
VC
TSD
2
VIN
3
GND
4
VOUT
5
ADJ
+
REF
– IO Board –
IC701
MC14052 BDR2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
2X0
X2
VDD
X1
XCOM
X0
X3
A
B
VSS
VEE
INH
2X1
2X3
2XCOM
2X2
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