Onkyo TX-SR403 Service Manual page 2

A
BLOCK DIAGRAM
1
CD
TAPE OUT
TAPE IN
2
VIDEO3 IN
VIDEO2 IN
VIDEO1 OUT
VIDEO1 IN
3
L
FRONT
R
L
SURROUND
R
CENTER
SUBWOOFER
4
DIGITAL IN
COAXIAL
OPTICAL
5
B
TUNER UNIT
51
NJW1157
52
53 41
54 43
55
56
57
58
59
27
29
60
28
30
61
62
63
21 RECOUT_L
64
23
25
65
22 RECOUT_R
24
66
26
67
SOURCE_L
68 SOURCE_R
69
70
71
73
73
74
16
15
2ch ADC
14
13
RX0 49
48
43
RX2 47
46
45
44
42
50
CS42518
C
42
+
46
44 45
+
48
47
-6dB
4
25
Z2_L
3
26
2 MIX_L
Z2_R
27 MIX_R
NJU7311
12 7 VOLIN_SBL
17
22 VOLIN_SBR
11
18
10 5
19 24
6
9 23
20
8
21
DIR
TX-SR403/8340
D
80
88
81
89
82
90
87
95
83
91
84
92
85
93
86
94
8ch DAC