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SD-AT1000
IC501 VHiBD3811K1-1: Volume IC (BD3811K1)
80
79
47K
47K
1
IN31
47K
2
IN32
47K
3
IN41
47K
IN42
4
47K
5
IN51
47K
IN52
6
47K
IN61
7
47K
IN62
8
47K
IN71
9
47K
10
IN72
47K
IN81
11
47K
12
IN82
47K
47K
13
INDVDSR
14
INDVDSL
15
INDVDC
16
INDVDSW
17
OUT2+
18
OUT2-
OUT1+
19
OUT1-
20
21
IN1DSP
47K
22
IN1MIX
47K
47K
23
IN2DSP
24
IN2MIX
47K
25
26
78
77
76
75
47K
47K
REC
SW3
+
–
1
2
3
1
2
3
Input mute SW
5.1ch Mode SW2 DVD
47K
47K
47K
+
–
–
+
+
–
–
+
5.1ch Mode SW2 DSP
–
+
47K
47K
47K
27
28
29
30
Figure 50 BLOCK DIAGRAM OF IC
74
73
72
71
REC
REC
SW1
SW2
+
–
REC
INSW
+
–
+
–
+
–
LINE
R/L
MIX
LINE
R/L
MIX
5.1ch Mode SW1
+
–
–
+
–
+
31
32
33
34
– 50 –
70
69
68
67
66
+
–
TREBLE
BASS
+
–
BASS
BOOST
+
–
LOGIC
+
–
+
–
+
+
–
35
36
37
38
39
65
64
TNF2
63
TNF1
62
BNF11
61
BNF21
60
BNF12
59
BNF22
BBNF2
58
OUT2
57
56
BBNF1
55
OUT1
54
AGND8
53
AGND7
52
VCC
VCC
51
AGND6
VEE
50
VEE
49
AGND5
48
MUTE
47
CL
46
DA
45
DGND
44
AGND4
43
GOUTSR
–
42
VINSR
41
AGND3
40
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