Sony HCD-EA20 Service Manual page 60

HCD-EA20
QQ
3 7 63 1515 0
IC501,521,551 NJM4580E(TE2)
A OUT 1
2
A –IN
A
A +IN 3
4
V–
IC951 SI-8120JF
REGULATOR
PROTECTOR
RESET
ON/OFF
OSC
SOFT
COMPARATOR
START
+
–
+
–
ERROR AMP
1
TE
L 13942296513
IC953 SI-8033JF
REGULATOR
PROTECTOR
RESET
ON/OFF
OSC
SOFT
COMPARATOR
START
+
–
+
–
ERROR AMP
1
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60
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8 V+
7 B OUT
B
6 B –IN
5 B +IN
OVER
CURRENT
LATCH
&
DRIVER
OVER HEAT
PROTECTOR
VREF
2 3 4 5
OVER
CURRENT
LATCH
&
DRIVER
OVER HEAT
PROTECTOR
VREF
2 3 4 5
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8
IC502,522,552 M62429P
VIN2
8
VR 2
VOL AMP 2
VOL AMP 1
VR 1
1
VIN1
IC952 SI-8050S-LF1101
REGULATOR
OSC
ERROR AMP
1
Q Q
3 6 7 1 3
– DMB03 BOARD –
IC216 SN74ALVCH16841DGGR
1OE 1
1D1
2
1D2
3
GND
4
1D3
5
1D4 6
VCC 7
1D5 8
1D6 9
GND 10
1D7 11
1D8 12
1D9 13
1D10 14
2D1 15
2D2
16
2D3
17
GND
18
2D4
19
2D5
20
2D6 21
VCC 22
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2D7 23
2D8 24
.
GND 25
2D9 26
2D10 27
2OE 28
2 9 9 4 2 8
VOUT2 VCC CLOCK
7 6 5
VREF
LOGIC
CONTROL
REF AMP
2 3 4
VOUT1 GND DATA
OVER
CURRENT
PROTECTOR
LATCH
RESET
&
DRIVER
+
OVER HEAT
–
PROTECTOR
COMPARATOR
+
–
VREF
2 3
1 5 0 5 8 2 9 9 4
OE LE 56 1LE
55 1Q1
54 1Q2
53 GND
52 1Q3
51 1Q4
50 VCC
LATCH
49 1Q5
48 1Q6
47 GND
46 1Q7
1Q8
45
1Q9
44
1Q10
43
42 2Q1
41 2Q2
40 2Q3
39 GND
38 2Q4
37 2Q5
m
36 2Q6
LATCH
35 VCC
co
34 2Q7
33 2Q8
32 GND
31 2Q9
2Q10
30
OE LE 29 2LE
9 9
4 5
2 8 9 9