Onkyo TX-SR55 Service Manual page 26

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A
SCHEMATIC DIAGRAM 8
NADG-8366(PART-9)
P2005
1
C2072
C2071
104Z
104Z
2
1
VSS
2
R2071
100K
3
R2072
100K
4
R2073
100K
5
R2074
100K
6
L-S5
7
R2075
Q2006
L-S6
100K
RN1443
8
R2076
100K
9
L-S7
10
R2077
100K
11
R2078
100K
12
13
STB
14
GND
3
VDD
C2128
120J
X2101
4
27MHZ
P6 20
P7 19
18
NC
17
NC
16
NC
C2186
15
DVDDIO
104Z
14
DGND
13
NC
SFL 12
Q2101
C2185
11
NC
104Z
DV7183A
DVDD 10
9
DGND
P8 8
P9 7
P10 6
P11 5
C2123
DVDDIO 4
104Z
DGND 3
HS 2
VS 1
5
C2126
104Z
B
Video section
VDD
28
R2083
27
100K
R2082
26
100K
R-S3
25
R2086
R-S4
100K
24
R2085
100K
23
R2081
R-S5
22
100K
R2080
R-S6
21
100K
20
R-S7
19
R2079
R-S8
100K
18
R2084
100K
17
DATA
16
CL
15
SCL
Q2109
2SK3019
R2113
2.2K
SDA
Q2108
2SK3019
R2110
2.2K
Q2105
RN1401
C2189
C2163
104Z
104Z
R2143
R2145
100
R2129
4.7K
33
1
VAA
R212133
2
P0
R2122 33
3
P1
R2123 33
4
P2
R2124 33
5
P3
R2125 33
6
P4
Q2104
R2126 33
7
P5
ADV7172
R2127 33
8
P6
R2128 33
9
P7
10
CSO_HSO
C2188
11
VAA
104Z
12
GND
R2133
100
100
R2132
L2105
NCH-1471
C2164
022K
10/16
+5VVD
C2184
C2183
VMUT
-5VVD
R2172
NFB3
8
100K
C2176
R2171
7
VIN3+
105K
100
R2192
6
-VCC1
82
R2170
NFB2
5
100K
C2175
R2169
4
VIN2+
100
105K
R2191
3
MUTE1
R2168
82
2
NFB1
100K
C2174
R2167
VIN1+
1
105K
100
R2190
82
100/6.3
C2162
COMP1 36
C2179 104Z
104Z
DACA 35
34
VAA
R2166
33
DACB
8
NFB3
32
VAA
100K
C2173
R2165
31
GND
7
VIN3+
30
100
VAA
105K
DACC 29
R2189
-VCC1
6
DACD 28
82
R2164
27
VAA
5
NFB2
26
100K
GND
C2172
R2163
25
4
VIN2+
100
105K
DACE
R2188
MUTE1
3
82
R2161
R2162
2
NFB1
100K
C2171
100
105K
1
VIN1+
C
100/6.3
104Z
9
-VCC2
10
MUTE2
R2178
11
75
VOUT3
12
DRCTL
R2177
13
C2182
75
VOUT2
104Z
14
GND
R2176
15
75
VOUT1
16
+VCC
C2181
100/6.3
C2180
9
-VCC2
10
MUTE2
R2175
11
0
VOUT3
R2180
12
DRCTL
R2174
13
C2178
75
VOUT2
104Z
R2179
14
GND
R2173
15
75
VOUT1
16
+VCC
C2177
100/6.3
TX-SR55
D

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