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SD-AT1000
– 50 –
Figure 50 BLOCK DIAGRAM OF IC
IC501 VHiBD3811K1-1: Volume IC (BD3811K1)
1
47K
47K
47K
47K
47K
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
25
26
27
28
29
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31
32
33
34
35
36
37
38
39
40
2
3
4
5
6
7
8
9
10
11
12
13
14
–
+
+
+
–
–
+
–
+
–
+
–
15
16
17
18
19
20
21
22
23
24
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
47K
47K
47K
47K
47K
47K
47K
47K
47K
47K
47K
47K
47K
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47K
47K
47K
47K
47K
47K
47K
47K
47K
–
+
5.1ch Mode SW2 DSP
5.1ch Mode SW2 DVD
5.1ch Mode SW1
LINE
R/L
MIX
MIX
LINE
R/L
MIX
R/L
MIX
+
–
+
–
+
–
1
2
2
3
1
2
2
3
Input mute SW
+
+
–
–
+
–
+
–
–
+
–
+
–
+
LOGIC
VEE
VCC
+
–
–
+
–
+
BASS
BOOST
BASS
TREBLE
REC
INSW
REC
SW1
SW1
REC
SW2
SW2
REC
SW3
SW3
IN31
IN32
IN41
IN42
IN51
IN52
IN61
IN62
IN71
IN72
IN81
IN82
INDVDSR
INDVDSL
INDVDC
INDVDSW
OUT2+
OUT2-
OUT1+
OUT1-
IN1DSP
IN1MIX
IN2DSP
IN2MIX
INDSPSR
INDSPSL
INDSPC
INDSPSW
AGND1
GOUTSW
VINSW
AGND2
GOUTC
VINC
OUTSW
OUTC
OUTSL
OUTSR
VINSL
GOUTSL
AGND3
VINSR
GOUTSR
AGND4
DGND
DA
CL
MUTE
AGND5
VEE
AGND6
VCC
AGND7
AGND8
OUT1
BBNF1
OUT2
BBNF2
BNF22
BNF12
BNF21
BNF11
TNF1
TNF2
VIN1
GOUT1
AGND9
VIN2
GOUT2
AGND10
ROUT11
ROUT12
ROUT21
ROUT22
ROUT31
ROUT32
IN11
IN12
IN21
IN22
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