Onkyo TX-L55 Service Manual page 29

IC BLOCK DIAGRAMS AND DESCRIPTIONS
BD3817KS (7ch Volume with 10ch input selector)
TERMINAL DESCRIPTION
Pin No. Pin Name
1 AGND1 Analog ground terminal
2 AGND2 Analog ground terminal
3 INA1 1ch input terminal A
4 INA2 2ch input terminal A
5 INB1 1ch input terminal B
6 INB2 2ch input terminal B
7 INC1 1ch input terminal C
8 INC2 2ch input terminal C
9 IND1 1ch input terminal D
10 IND2 2ch input terminal D
11 INE1 1ch input terminal E
12 INE2 2ch input terminal E
13 INF1 1ch input terminal F
14 INF2 2ch input terminal F
15 ING1 1ch input terminal G
16 ING2 2ch input terminal G
17 INH1 1ch input terminal H
18 INH2 2ch input terminal H
19 INI1 1ch input terminal I
20 INI2 2ch input terminal I
21 INJ1 1ch input terminal J
22 INJ2 2ch input terminal J
23 AGND3 Analog ground terminal
24 INDVDFR FRch DVD input terminal
25 INDVDFL FLch DVD input terminal
26 INDVDC Cch DVD input terminal
27 INDVDSR SRch DVD input terminal
28 INDVDSL SLch DVD input terminal
29 INDVDCB CBch DVD input terminal
30 INDVDSW SWch DVD input terminal
31 AGND4 Analog ground terminal
32 AOUT1 1ch A/D output terminal
33 AOUT2 2ch A/D output terminal
34 NC Non-connected terminal
35 AGND5 Analog ground terminal
36 NC Non-connected terminal
37 NC Non-connected terminal
38 INDSPFR FRch DSP input terminal
39 INDSPFL FLch DSP input terminal
40 INDSPC Cch DSP input terminal
41 INDSPSR SRch DSP input terminal
42 INDSPSL SLch DSP input terminal
43 INDSPCB CBch DSP input terminal
44 INDSPSW SWch DSP input terminal
45 NC Non-connected terminal
46 AGND6 Analog ground terminal
47 NC Non-connected terminal
48 GOUTSW SWch input gain output terminal
49 VINSW SWch volume input terminal
50 AGND7 Analog ground terminal
Description Pin No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Pin name Description
GOUTCB CBch input gain output terminal
VINCB CBch volume input terminal
GOUTSL SLch input gain output terminal
VINSL SLch volume input terminal
GOUTSR SRch input gain output terminal
VINSR SRch volume input terminal
GOUTC Cch input gain output terminal
VINC Cch volume input terminal
AGND8 Analog ground terminal
NC Non-connected terminal
OUTSW SWch output terminal
AGND9 Analog ground terminal
OUTCB CBch output terminal
OUTSL SLch output terminal
OUTSR SRch output terminal
OUTC Cch output terminal
AGND10 Analog ground terminal
OUTFL FLch output terminal
NC Non-connected terminal
OUTFR FRch output terminal
BNFB2 2ch bass filter terminal B
BNFA2 2ch bass filter terminal A
BNFB1 1ch bass filter terminal B
BNFA1 1ch bass filter terminal A
TNF2 2ch treble filter terminal
TNF1 1ch treble filter terminal
AGND11 Analog ground terminal
VINFL FLch volume input terminal
GOUTFL FLch input gain output terminal
VINFR FRch volume input terminal
GOUTFR FRch input gain output terminal
THGND Comparator ground terminal
MUTE Mute terminal
CL Serial clock input terminal
DA Serial data and latch input terminal
AGND12 Analog ground terminal
VEE (-)Power supply terminal
NC Non-connected terminal
VCC (+)Power supply terminal
AGND13 Analog ground terminal
ROUTA1 1ch REC input and output terminal A
ROUTA2 2ch REC input and output terminal A
ROUTB1 1ch REC output terminal B
ROUTB2 2ch REC output terminal B
ROUTC1 1ch REC output terminal C
ROUTC2 2ch REC output terminal C
OUT1 1ch output terminal
OUT2 2ch output terminal
AGND14 Analog ground terminal
AGND15 Analog ground terminal
TX-L55/LR552