Sony TAV-L1 Service Manual page 121

IC8552 PQ1CY1032ZP
VOLTAGE
REGULATOR
OVERCURRENT
DETECTION
CIRCUIT
OVERHEAT
DETECTION
CIRCUIT
1 2
IC8652, 8653 BA00AST-V5
CTL 1
REFERENCE
VCC 2
VOLTAGE
GND 3
– B Board –
IC1002 S-1111B33MC-NYSTFG
VIN 1
OVERCURRENT
PROTECTOR
VSS 2
REFERENCE
VOLTAGE CIRCUIT
ON/OFF
ON/OFF 3
CIRCUIT
ON/OFF
CIRCUIT
PWM COMPARATOR
+
–
Q OCSILLATION
CIRCUIT
R
ERROR
S
AMP
–
+
5 C
+
–
4 OUT
5 NC
4 VOUT
–
+
SOFT START
CIRCUIT
–
+
3 4 5
IC1008 SN74LV132APWR
1A 1
1B 2
1Y 3
2A 4
2B 5
2Y 6
GND 7
TAV-L1
14 VCC
13 4B
12 4A
11 4Y
10 3B
9 3A
8 3Y
121