Onkyo HT-R520 Service Manual

IC BLOCK DIAGRAM AND TERMINAL DESCRIPTIONS-4
Q301: BD3817KS (7ch Volume with 10ch input selector)-1
BLOCK DIAGRAM
TX-SR502/E/8250/HT-R520
AGND1 1
AGND2
2
INA1
3
INA2 4
INB1 5
INB2 6
INC1
7
INC2 8
IND1
9
IND2 10
INE1 11
INE2 12
INF1
13
INF2 14
ING1 15
ING2 16
INH1
17
INH2 18
INI1
19
INI2 20
INJ1
21
INJ2
22
AGND3 23
INDVDFR
24
INDVDFL
25
INDVDC
26
INDVDSR
27
INDVDSL
28
INDVDCB
29
INDVDSW 30
AGND4
31 32
AUTO1
33
AUTO2
34
NC
35
AGND5
36
NC
37
NC
38
INDSPFR
39
INDSPFL
40
INDSPC
41
INDSPSR
42
INDSPSL
43
INDSPCB
44
INDSPSW
45
NC
46
AGND6
47
NC
48
GOUTSW
49
VINSW
50
AGND7
VINFR80
GOUTFL
79
VINFL
78
AGND1177
TNF176
TNF275
BNFA1
74
BNFB173
BNFA2
72
BNFB271
OUTFR70
NC69
OUTFL
68
AGND1067
OUTC66
OUTSR65
OUTSL
64
OUTCB63
AGND9
62
OUTSW61
NC
60
AGND8
59
VINC58
GOUTC
57
VINSR
56
GOUTSR
55
VINSL
54
GOUTSL
53
VINCB
52
GOUTCB51
AGND15
100
OUT2
99
OUT1
98
AGND14
97
ROUTC2
96
ROUTC1
95
ROUTB2
94
ROUTB1
93
ROUTA2
92
ROUTA1
91
AGND13
90
VCC
89
NC
88
VEE
87
AGND12
86
DA
85
CL
84
MUTE
83
THGND
82
GOUTFR
81
LOGIC
TREBLE
BASS
Input
select2
Input
select1
V
CC
VEE
Output
mode
select
Maser
volume
FRL select
6.1ch select

Onkyo HT-R520 Specifications

General

Brand	Onkyo
Model	HT-R520
Category	Receiver
Language	English