Onkyo TX-SR55 Service Manual page 18

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A
SCHEMATIC DIAGRAM 4
R6060 2.2
(1/4W)
1
R6030
[1.1V]
1K
[1.0V]
R6000
5.6K
R6010
3.9K
Q6010
NF
-B1
[-0.3V]
+B1
B+
Q6020
B-
R6040
1K
[-0.4V]
R6050
3.9K
[-1.1V]
[-53.0V]
R6061 2.2
(1/4W)
2
R6031
[1.1V]
[1.0V]
1K
R6001
5.6K
R6011
3.9K
Q6011
NF
-B1
[-0.3V]
+B1
B+
Q6021
B-
R6041
1K
[-0.4V]
R6051
[-1.1V]
3.9K
[-53.0V]
R6062 2.2
(1/4W)
3
R6032
[1.1V]
[1.0V]
1K
R6002
5.6K
R6012
3.9K
Q6012
NF
-B1
[-0.3V]
+B1
B+
Q6022
B-
R6042
1K
[-0.4V]
R6052
[-1.1V]
3.9K
[-53.0V]
4
5
B
Power amplifier section
[53.0V]
Q6030
R6160
R6080
33K
Q6050
2.2
(1/4W)
Q6070
R6140
[0.6V]
[0.6V]
R6200
22K
P6080
R6070
120
100
R6100
ID+
(1/4W)
0.22 X2
ID-
(5W)
R6150
12K
C6040
[-0.6V]
47/50
Q6060
C6050
[-0.6V]
R6240
R6090
220K
2.2
(1/4W)
Q6040
[53.0V]
Q6031
R6161
R6081
33K
Q6051
2.2
(1/4W)
Q6071
R6141
[0.6V]
[0.6V]
R6201
22K
P6081
R6071
120
100
R6101
ID+
(1/4W)
0.22 X2
ID-
(5W)
R6151
12K
C6041
[-0.6V]
47/50
Q6061
C6051
[-0.6V]
R6241
R6091
220K
2.2
(1/4W)
Q6041
Q6032
[53.0V]
R6162
R6082
33K
Q6052
2.2
(1/4W)
Q6072
R6142
[0.6V]
[0.6V]
R6202
22K
P6082
R6072
120
100
R6102
ID+
(1/4W)
0.22 X2
ID-
(5W)
R6152
12K
C6042
[-0.6V]
47/50
Q6062
C6052
[-0.6V]
R6242
R6092
220K
2.2
(1/4W)
Q6042
R6702
C6703
10K
223Z
Q6703
R6701
22K
R6704
47K
R6708
33K
Q6701
Q6702
D6703
MTZJ5.1B
D6704
MTZJ5.1B
C6704
C6706
D6701
1/50
100/6.3
C6701
R6706
100/6.3
D6702
220K
D6000
R6180
R6170
47K
47K
R6230
103J
8.2 (1W)
C6230
473J
D6001
R6181
R6171
47K
47K
103J
C6231
473J
R6231
8.2 (1W)
D6002
R6182
R6172
47K
47K
103J
R6232
8.2 (1W)
C6232
473J
Q6603
Q6601
R6631
R6633
1K
1K
+10VS
POWER
C
Q6303,6304:
KTA1267-GR OR
2SA933-R,S
D6307
Q6304
Q6303
P6301
R6309
D6306
470
R6307
R6310
470
4.7K
R6306
10K
C6707
D6707
223Z
MTZJ5.1B
R6707 22K
R6235
8.2
C6235
473J
(1W)
R6185
D6005
47K
R6175
47K
R6236
C6236
8.2
473J
(1W)
R6186
D6006
47K
R6176
47K
R6751
R6750
390
390
(1/2W)
(1/2W)
R6605
10
(1/2W)
Q6604
Q6602
R6634
R6632
1K
1K
MPUGND
TX-SR55
D
+24V
+24V
TH2
TH1
JL6402A
R6308
4.7K
JL6200A
+B1
-B1
E
SBRSP
SBLSP
IPRO
SBLSP
SBRSP
SLSP
SRSP
SRSPE
SLSPE
SBRSPE
SBLSPE
SBLSPE
RSP
LSP
CSP
Z2RLD
SBRLD
FRLD
CSRLD
+24VR
HPL
HPR
E
+24V
S3GND
SPRLCS
SPRLF
SPRLSB
SPRLZ2
SEC1H
POWER
+10VS
VOLH
PRO
THRM

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