Onkyo TX-SR55 Service Manual page 41

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A
WIRING VIEW
AC inlet PC board
1
U11
NAETC-8388
SCH. 6
P901B
N L
P925
P926
E921
P902
P917
P908
2
P909
P912
P927
Worldwide
model
only
3
3
1
1
POWER
TRANSFORMER
U17
19 18 17 16 15
P995A
BLK
NAETC-8398
P995B
P995C
Soldering side
RED
BLU
SCH. 6
Secondary circuit
4
PC board
5
B
U19
NAETC-8400
Speaker terminal
F/C PC board
S902
P921A
220V
120V
NAAF-8397
U5
Power amplifier PC board
P913
NAPS-8382
SCH. 6
P6906
Primary circuit
P6909
PC board
U7
NAETC-8384
Soldering side
1
SCH. 6
7
5
Transformer
terminal
PC board
U13
14 13 12 11 10 9
8
NAETC-8390
JL9501A
Soldering side
SCH. 6
Fuse terminal PC board
Headphone terminal PC board
NAETC-8412
U32
E7701
SCH. 7
JL7701B
P7801
P6602
P6600
NAETC-8401
P6691
JL6805B
JL6805A
Soldering side
SCH. 5
P6801B
P6800B
P6804B
U16
P6843
JL6802A
SCH. 4
P6801A
P6800A
P6804A
P6841
P6922
P995AA
JL6803A
SCH. 7
U26
P7502A
NADIS-8406
Display circuit PC board
JL7701A
C
U18
NAETC-8399
Speaker terminal PC b
P6803
P6802
Soldering side
SCH. 5
JL6802B
JL6803B
P6842
Driver circuit PC board
JL6200A
BIAS
ID+
ID-
BIAS
ID+
ID-
SCH. 3
ID+
ID-
ID+
ID-
BIAS
ID+
ID-
U21
P6932
SCH. 5
P6953A
NAETC-8402
Thermal detector PC board
P7502B
JL9502A
NAPS-8389
U12
SCH. 6
P6953B
P6931A
Secondary circuit PC board
TX-SR55
D
U6
P7501

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