Onkyo HT-R520

PRINTED CIRCUIT BOARD VIEWS-2
TX-SR502/E/8250/HT-R520 TX-SR502/E/8250/HT-R520
+22V
2V
+
-1
-1
SE
1
SEC1-1
-1
S
D
D
GND
GND
ND
GN
SEC1-2
SEC1-2
S
C3-1
SEC3
SEC3-2
SEC3 2
S
S
S
E
C3
-
2
SEC3-1
SE
56S
5
.
6S
S
ROTHERM
THERM
PRO
+
13
V
ND
GND
D
GND
GN
PROTEC
ROTECT
P
P
O
O
VOLH
V
VOLH
V
VOLH
V
SPB
B
SEC1H
H
H
C1H
EC1
SPCS
PCS
CS
SPC
SP
SPF
SP
SP
PF
S
P
P
P
POWER
P
PO
OW
N
N
I
N
IN
IN
UT
OUT
T
O
U
T
OUT
T
OU
T
IN
IN
G
G
B
B
B
E
E
E
E
E
E
E
E
E
E
GND
D
G
G
RI
RI
R
HPIN
PI
P
H
H
N
M
M
MCRDY
R
C
MC
D
M
M
DY
R
MCSDA
A
C
C
M
SD
DA
M
DA
S
DA
A
D
A
MCMDA
A
C
C
M
M
D
M
D
M
LK
C
K
L
LK
K
K
L
MCCL
C
C
M
C
M
C
S
R
ST
T
ST
S
MCR
C
C
M
R
M
R
U
M
UT
T
UT
U
HPM
PM
P
H
M
H
M
P
P
-VP
V
-V
P
VP
G
G
GND
G
G
D
D
MCS
C
M
M
CSDA
A
D
A
SD
MCMDA
C
M
A
D
A
MD
MDA
A
D
A
MD
MCC
C
CC
M
K
CLK
C
K
MPUR
PUR
MPUR
ST
ST
ST
URST
RS
URS
S
T
T
T
FVCC
C
FVCC
FVCC
C
IC
IC
RD
Y
Y
MCRD
D
DY
FLASH
FLASH
FLASH
FLASH
GN
GN
GN
GN
ND
ND
D
D
ND
N
ND
ND
D
23
2
23
23
32R
232
2R
32R
RXD
XD
R
RXD
RX
D
23
2
32
23
RX
R
RX
R
D
D
D
2
2
2
2
232
232
232
232
TX
T
TX
T
2
2
2
2
2T
2T
2T
XD
TX
XD
D
XD
N
N
N
C
C
C
C
C
C
C
FV
C
C
C
F
C
VC
C
C
C
C
G-8230
CDG
8
2
3
NC
NCD
N
30B
513823
B
251
1
1
1
0
0
20
0
20
2
2
1
21
2
40
0
4
6
0
80
0
0
8
1
1
10
1
10
10
10
10
11
11
1
20
2
20
1
7
7
7
8
8
8
8
8
8
14
1
14
1
1
1
8
8
1
1
1
1
1
1
1
1
1
1
16
6
16
6
16
16
6
6
16
17
17
17
17
7
7
17
17
17
7
7
32
2
3
32
2
3
32
2
3
32
2
3
32
2
3
1
1
6
6
6
6
36
36
6
72
72
7
72
108
8
08
108
8
08
108
8
08
109
1
144
1
4
4
4
18
18
18
81
81
81
C1
C1
C1
C1
C1
82
C182
C
C
C183
C183
C183
18
C18
C1
C1
84
184
C
C18
C
85
C186
18
86
6
C
8
8
C
C
C
C18
C18
87
87
70
701
1
C7
7
0
0
0
C702
C702
703
03
C703
C704
C70
5
C
7
05
5
06
0
6
C70
7
C7
0
C
6
C
C
C
6
6
70
7
0
C707
7
0
7
7
C
70
C
C708
C7
C
8
70
08
C708
70
C7
C
08
8
C709
9
C709
9
C709
9
C709
9
C709
C710
C710
C710
C710
C711
C711
C711
C711
712
71
C7
12
C712
C7
C
712
2
12
7
7
C7
7
C7
C7
C7
713
13
13
7
71
C714
4
7
C
71
C
C715
5
C7
C
715
C
C716
6
16
C7
C
71
7
C
C71
C
7
7
718
C
C
C
1
7
8
8
C719
C
1
7
9
9
C720
720
C
C720
C
C
C751
C751
C
C
C
C752
C752
C752
01
01
C6
C6
C6
640
640
6403
C6
C
3
04
4
C
C
C
C6404
C6404
40
5
05
C
C64
C6406
C64
6406
406
C
9
9
C6
C6
6409
409
C
C
0
0
C6410
C6410
0
1
C6
C6
641
6
C
C
C
1
C6412
C6412
2
C64
C
C
C
01
1
C7001
01
C70
C700
C700
01
2
2
C7002
02
C
C
C
C7003
7
3
0
C7
0
C7003
3
0
C7
C
0
04
4
4
700
00
0
C70
C
C70
C7
004
04
004
4
C700
0
70
70
0
005
05
005
700
005
C70
C70
C7006
C7006
C7006
C7006
C7007
C7007
C7007
8
C7008
C700
C7009
C700
C7
C7
7010
7010
C
C
7
7
10
0
C7011
C701
C7
C701
2
14
01
C
C
C70
C701
4
7015
015
C7
C
C
015
15
C70
70
C7301
301
730
01
C7302
C7302
C7302
C7303
C7303
C7303
C
C7304
04
C7305
305
05
30
5
7
C7306
06
C7
6
C7307
C73
C73
C73
307
307
307
3
3
3
C9501
C
9501
C9502C9502
C9503C9503
C
5
95
505
5
C9
505
C950
05
C9506
6
9506
C
C9506
C
C9506
C
950
C9
7
507
C9507
C9508
C9508
C
C9508
C
C9508
08
95
5
1
0
C9
C951
C95
510
9511
95
C
C95
51
12
2
C9
C
C
51
9
D70
D
0
00
00
0
0
01
0
0
1
001
00
0
1
D7
D
700
00
0
01
0
1
D7002
D7
D
70
D7003
D70
D7
D
D
D
D
D
D
3
D7004
0
00
0
04
0
4
4
004
0
00
4
4
D700
D
00
D7
0
7
7
7
02
02
0
02
D77
D77
D77
D95
502
D9
95
5
0
3
D95
04
D95
0
4
05
D950
5
D
D
D9506
07
D
95
0
7
08
08
D9508
0
L181
L181
81
L7
7
0
1
L7
L
L702
2
0
L7
7
L703
3
L7
L
7
L751
L
L
5
5
1
7
001
1
001
0
L70
L
L
L7002
L7
7002
7002
L7
L7
L7301
L7301
P410B
0B
41
10
P
P
B
P
411
B
2B
B
P4
P4
412
4
P
P
P
P6
P6403
P7701
P7701
P7701
01
P7701
P7701
P7701
P7
P
7
P
P
7502B
502B
7502B
2B
50
50
B
B
02B
02
P75
75
P75
P
Q181
Q
Q
81
Q181
Q
Q
81
Q181
Q
Q
8
Q
18
1
Q
Q
701
Q
Q701
Q70
Q
1
7
Q70
Q702
Q
Q7
2
Q702
Q
Q7
Q70
Q
Q7
02
Q702
Q
Q7
2
Q70
Q
Q7
Q
Q
Q
Q702
7
Q
0
2
0
Q
Q
Q
Q702
7
Q
0
2
0
Q
Q702
7
0
2
0
Q
Q64
0
2
640
03
03
6
6
640
640
Q
Q
5
5
5
Q6405
5
406
Q6406
0
07
Q6407
6407
Q6
Q6408
6408
Q6
Q6
Q7001
001
01
700
Q70
Q
Q7002
Q7002
Q7002
Q7002
00
2
02
70
Q7
Q
0
0
Q70
Q
Q70
3
03
0
00
Q7003
Q7003
Q7003
Q7004
Q7004
Q
4
Q7008
Q7008
Q
08
8
0
Q70
Q7
70
0
08
8
7008
7
0
8
00
Q7
Q7
7
Q
Q7301
Q30
Q7301
7301
30
3
01
0
Q73
Q
Q73
Q73
30
01
30
Q950
1
R107
07
R
07
07
0
R107
07
R
R1
1
81
R
R
181
R181
R
R
R1
1
R
R
R1
82
82
83
3
8
R183
R1
83
R
8
R18
R
1
83
3
8
R18
R1
8
R
8
R184
R
R
18
R
5
86
86
8
6
R18
8
1
R1
R1
R1
R
R1
1
R
186
8
8
6
86
6
R187
R187
7
7
00
R700
701
70
70
R7
R7
R
R7
0
0
7
7
7
R7
7
R7
702
702
R
02
R7
R7
70
R7
703
R7
7
7
70
R
03
R
R7
R
R
R7
704
R7
705
5
R
7
70
05
R
R7
R
R
R7
706
R707
7
0
7
7
R
70
R708
08
R7
R
8
70
R709
9
R7
R70
R
709
09
R
R
R
R710
R
R
R711
71
1
R
R7
R712
R
R
R713
3
1
3
R7
R
R7
R
R
R7
71
R7
7
7
71
R
R
714
R71
R7
715
R
R
R
R716
R
R7
R
R
R
R
R717
R7
7
R
7
7
R
7
1
8
R719
9
R
R
R72
20
2
R
7
R72
21
2
R
7
R722
22
R7
2
722
R722
R7
3
R723
23
R724
72
4
24
R
R725
R7
25
725
R72
R726
R
726
R72
R7
R727
7
R
R
R728
7
R
R
R729
7
R
29
R
R730
0
7
R
73
R
R731
1
7
R
73
R
R732
73
R
2
R732
R733
7
33
3
R73
R734
7
3
4
R73
R735
7
35
5
R73
R736
73
R
6
R736
737
7
73
R
R
R77
RR
738
7
8
38
73
R
R
R77
RR
739
7
9
3
73
R
RR
R77
RR
740
7
0
4
74
R
R
R
R
R
R7R7
R
R
R
741
741
41
74
7
R
R
R
R
R
R
R7
R7
R7
R
R
R
742
2
42
7
74
R
R
R
R7
R7
R
R
743
R
R
R
4
7
3
43
744
R
R
R
4
7
4
44
745
R
R
R
4
7
5
45
746
R
R
R
4
7
6
46
747
R
R
R
4
7
7
47
8
R748
R
4
7
8
48
R749
R
49
74
9
7
5
0
R
77
R751
751
R77
R761
76
R7
1
R
R761
6
7
1
R
R761
1
76
R7
61
R
R762
6
7
R
7
R
R763
R7
R
763
R763
R
R
R
R764
R764
R764
R6402
R640
R6402
R
3
3
3
03
3
R6403
405
R6405
R6406
06
R64
60
06
7
R6
6407
R640
R64
R
R6
640
08
R
R
R
R
R
00
00
0
0
0
7000
R700
7000
R
R
R
R
R
R70
0
70
0
R7
R
7001
00
0
0
1
R
R7002
2
7
R
R
7002
00
0
0
2
R7003
R70
R
700
3
03
7003
R7
70
3
003
R7003
70
R
00
3
R
R7004
4
7
R
R
7004
00
0
0
4
R
R7005
5
7
R
R
7005
00
0
0
5
R
R7008
8
7
R
R
7008
00
0
0
8
R
R7009
9
7
R
R
7009
00
0
0
9
R
R7010
0
7
R
R
7010
01
1
0
0
R
R7011
1
7
R
R
7011
01
1
0
1
R
R7012
2
7
R
R
7012
01
1
0
2
R
R7014
4
7
R
R
7014
01
1
0
4
R
R7015
5
7
R
R
7015
01
1
0
5
R
R70
0
7
R
R
7016
016
16
0
6
R
R
R701
01
70
R
R
17
7
17
R70
R701
018
R7019
019
R7020
02
0
021
1
02
21
1
21
R702
R70
2
2
R
2
R7022
2
022
R
R70
0
7023
23
0
23
3
R7
R
024
2
24
4
24
2
24
4
R702
2
0
24
R
5
5
R7025
2
0
25
R
5
R7026
2
0
26
R
6
0
0
0
027
02
27
027
7
R70
R
R70
70
R7
0
0
28
02
2
8
R70
R
R7
70
0
29
02
2
9
R70
R7
R
7
0
0
0
0
030
030
0
03
R70
R7
R
70
0
031
0
1
3
1
1
31
0
1
3
R70
R
70
R
R7
703
0
7
70
3
2
2
2
2
2
032
03
0
32
2
R70
R
0
R7
70
R7033
33
R
03
R70
R70
R7
0
R
R
R703
R7
70
33
3
3
03
0
03
3
R7
R
7
R
4
4
034
0
4
3
34
R703
R
70
R7
0
3
R
R
R
035
35
35
R7
R703
03
R
5
5
7
R
7036
036
7036
703
70
R7
R
037
037
37
7
7
R
R
7038
70
038
38
7
7
R
R
7039
9
7
7
R
R
R
7040
7
040
0
R
R7041
R
R
R
R7042
R
7
R7
R
R
R
42
4242
R7043
70
43
04
R7
R
3
R704
R
70
R7
R7044
R70
R7
R
704
5
R
7
0
4
6
R7047
R7047
R7047
R7047
R7048
48
8
R
R
048
R7
704
R7049
49
70
049
R70
R
R7050
050
705
R7
R70
R
R
R
R7051
7051
R70
R7
R
R
R7052
R7052
R7053
R
R7053
R7054
7054
R
R7
R7055
R7
70
055
R
R7056
6
R7056
7056
R70
R70
R
70
R
R7057
R
7057
R7
R70
7
R
R7
R7
R7
705
70
5
70
58
8
5
R7
R
7
R7
705
05
70
7
59
59
R
R
R70
0
7
R7
R
R
706
0
7
60
0
1
R
R
R7061
R7061
R7062
062
R7063
3
63
R70
06
R7
7
R
R7
R7064
64
06
70
R
R7
R70
7065
R7
R
0
065
R7
7065
R7
R
R
R7066
R
R
70
0
0
67
6
06
06
R7
7
R
R
R
7068
68
068
R
7
R
R
R
R
706
6
6
R7
R7
R
069
6
9
69
R
R
70
R7
R
070
7
0
70
71
71
71
1
1
1
1
1
R707
R
R7
707
07
07
R7
R70
R7
72
7
2
73
73
R7073
7
0
3
3
3
4
R7074
7
0
4
75
R707
R7
5
R7076
R7
707
6
76
R7077
7
R
7
0
7
R7077
7
R7
77
07
70
R7077
7
R
77
07
70
R
R7077
7
7
7
0
R7078
7
R
7
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12
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7318
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6
6
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6421
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6422
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C7020
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7
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319
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L
L
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7302
7302
7302
7302
A
1
2
3
4
5
BCDEFGH
U01
Soldering side