Display Board - Sony STR-DA3300ES Service Manual

STR-DA3300ES/DG1100
– DISPLAY Board –
IC703 NJM2173AV (TE2)
OUT1 1
AMP1 AMP2
DC CUT1 2
IN1 3
MIC V+1 4
REG 5 GV
NOISE 6 REG
GND 7
IC1404 SI-8050S-LF1101
OVER
REGULATOR CURRENT
PROTECTOR
RESET
OSC
+
–
COMPARATOR
+
–
ERROR AMP
1
IC1405 SI-8120JF
OVER
CURRENT
REGULATOR
PROTECTOR
RESET
ON/OFF
OSC
SOFT
COMPARATOR
START
+
–
+
–
ERROR AMP
1
120
14 OUT2
13 DC CUT2
12 IN2
11 MIC V+2
10 GV
9 STBY
8 V+
LATCH
&
DRIVER
OVER HEAT
PROTECTOR
VREF
2 3 4 5
LATCH
&
DRIVER
OVER HEAT
PROTECTOR
VREF
2 3 4 5
– DC-DC Board –
IC1402, 1403 SI-8008HFE
ON/OFF
PREG
SOFT
START
OSCILLATOR
COMPARATOR
–
+
–
+
+
ERROR AMP
1
OVERCURRENT
PROTECTION
LATCH
RESET
&
DRIVER
THERMAL
PROTECTION
REFERENCE
VOLTAGE
2 3 4 5