STR-DA4300ES - Sony Audio Service Manual (repair manual). Page 122

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122
STR-DA4300ES
IC1405   SI-8120JF
OVER
CURRENT
PROTECTOR
LATCH
&
DRIVER
OVER HEAT
PROTECTOR
REGULATOR
ON/OFF
SOFT
START
+

RESET
VREF
COMPARATOR
ERROR AMP
OSC
1
VIN
2
SW OUT
3
GND
4
VOS
5
ON/OFF
– DC-DC Board –
IC1402, 1403   SI-8008HFE
IN
1
SW
2
SS
5
ADJ
4
LATCH
&
DRIVER
ERROR AMP
COMPARATOR
OSCILLATOR
RESET
OVERCURRENT
PROTECTION
THERMAL
PROTECTION
REFERENCE
VOLTAGE
GND
3
ON/OFF
SOFT
START
PREG
+
+
+
OVER
CURRENT
PROTECTOR
LATCH
&
DRIVER
OVER HEAT
PROTECTOR
REGULATOR
+

RESET
VREF
COMPARATOR
ERROR AMP
OSC
1
VIN
2
SW OUT
3
GND
4
VOS
5
S.S
IC1404   SI-8050S-LF1101
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