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IC BLOCK DIAGRAM & DESCRIPTION
IC450 BD3811K1(6ch. Volume Selector)
80
79
47k
47k
1
IN31
47k
2
IN32
47k
3
IN41
47k
4
IN42
47k
5
IN51
47k
6
IN52
47k
7
IN61
47k
8
IN62
47k
9
IN71
47k
10
IN72
47k
11
IN81
47k
IN82
12
47k
INDVDSR
13
47k
INDVDSL
14
15
INDVDC
INDVDSW
16
OUT2+
17
OUT2-
18
OUT1+
19
OUT1-
20
IN1DSP
21
47k
IN1MIX
22
47k
47k
IN2DSP
23
47k
IN2MIX
24
25
26
78
77
76
75
74
47k
47k
RECSW
3
+
-
+
1
2
3
1
2
3
Input mute SW
5.1ch Mode SW2 DVD
47k
47k
47k
-
-
-
-
5.1ch Mode SW2 DSP
47k
47k
27
28
29
30
31
73
72
71
70
RECSW
REC
2
SW1
REC
-
INSW
-
-
+
+
LINE
R/L
MIX
LINE
R/L
MIX
5.1ch Mode SW1
-
+
+
32
33
34
35
- 23 -
69
68
67
66
65
+
TREBLE
BASS
+
BASS
BOOST
Vcc
V
EE
LOGIC
-
+
+
36
37
38
39
40
64
TNF2
63
TNF1
62
BNF11
61
BNF21
60
BNF12
59
BNF22
58
BBNF2
57
OUT2
56
BBNF1
55
OUT1
54
AGND8
53
AGND7
52
VCC
51
AGND6
50
VEE
49
AGND5
48
MUTE
47
CL
46
DA
45
DGND
44
AGND4
43
GOUTSR
42
VINSR
AGND3
41
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