Read Sony STR-DG2100 Service Manual online
122
STR-DG2100
– DISPLAY Board –
IC703 NJM2173AV (TE2)
IC1404 SI-8050S-LF1101
– DC-DC Board –
IC1402, 1403 SI-8008HFE
IC1405 SI-8120JF
1
OUT1
2
DC CUT1
3
IN1
4
MIC V+1
5
REG
6
NOISE
7
GND
14 OUT2
13 DC CUT2
12 IN2
11 MIC V+2
10 GV
9 STBY
8 V+
REG
GV
AMP1
AMP2
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
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
IC2011 TC74HCT7007AF (EL)
14
4Y
4A
5Y
5A
6Y
6A
VCC
1A
1Y
2A
2Y
3A
3Y
GND
13
12
11
10
9
8
1
2
3
4
5
6
7
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