Table Of Contents - Onkyo TX-SR502 Service Manual

IC BLOCK DIAGRAM AND TERMINAL DESCRIPTIONS-4
Q301: BD3817KS (7ch Volume with 10ch input selector)-1
BLOCK DIAGRAM
100
AGND1 1
AGND2 2
Input
select2
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
31
99 98 97 96 95 94 93 92
Input
select1
32 33 34 35 36 37 38 39
91 90 89 88 87 86 85 84
LOGIC
V
EE
V
CC
Output
mode
select
Maser
volume
FRL select
6.1ch select
40 41 42 43 44 45 46 47
TX-SR502/E/8250/HT-R520
83 82 81
80 VINFR
79 GOUTFL
78 VINFL
77 AGND11
76 TNF1
TREBLE
75 TNF2
74 BNFA1
BASS
73 BNFB1
72 BNFA2
71 BNFB2
70 OUTFR
69 NC
68 OUTFL
67 AGND10
66 OUTC
65 OUTSR
64 OUTSL
63 OUTCB
62 AGND9
61 OUTSW
60 NC
59 AGND8
58 VINC
57 GOUTC
56 VINSR
55 GOUTSR
54 VINSL
53 GOUTSL
52 VINCB
51 GOUTCB
48 49 50