Onkyo TX-SR502 Service Manual

SCHEMATIC DIAGRAMS-1
PREAMPLIFIER SECTION
TX-SR502/E/8250/HT-R520TX-SR502/E/8250/HT-R520
BD3817KS
Q301
AGND1
1
AGND10 67
AGND11 77
AGND12 86 AGND13 90 AGND14 97
AGND15
100
AGND22
AGND323
AGND4
31
AGND535 AGND646
AGND7
50
AGND8 59
AGND9 62
AOUT1
32
AOUT2
33
BNFA1 74
BNFA2 72
BNFB1 73
BNFB2 71
CL 84
DATA 85
GOUTC 57
GOUTFL 79
GOUTFR81
GOUTSB51
GOUTSL 53
GOUTSR 55
GOUTSW48
INA13
INA24
INB15
INB26
INC17
INC28
IND19
IND210
INDSPC40 INDSPCB43 INDSPFL39 INDSPFR38 INDSPSL42 INDSPSR41 INDSPSW44
INDVDC26
INDVDCB
29
INDVDFL
25
INDVDFR24
INDVDSL28
INDVDSR27
INDVDSW30
INE111
INE212
INF113
INF214
ING115
ING2
16
INH1
17
INH2
18
INI1
19
INI220
INJ121
INJ222
MUTE83
NC1
34
NC2
36
NC337 NC445 NC5
47
NC6 60
NC7 69
NC8 88
OUT1 98 OUT2
99
OUTC 66
OUTCB 63
OUTFL 68
OUTFR 70
OUTSL 64
OUTSR 65
OUTSW 61
ROUTA1 91 ROUTA2 92 ROUTB1 93 ROUTB2 94 ROUTC195 ROUTC296
THGND82
TNF1 76
TNF2 75
VCC 89 VEE 87
VINC 58
VINCB 52
VINFL 78
VINFR
80
VINSL 54
VINSR 56
VINSW
49
Q800
AK4588VQ
AVDD 55
AVSS 56
BICK1 18
BICK2 15
BOUT
2
CAD0
70
CAD1
72
CCLK/SCL
21
CDTI/SDA
22
CDTO 20
COUT 11
CSN
23
DAUX1
24
DAUX2
75
DVDD 4
DVSS 5
DZF1
34
DZF2/OVF
33
I2C
74
INT0
80
INT1
1
LIN 51
LOUT1 47
LOUT2 43
LOUT3
39
LOUT4
35
LRCK1 19
LRCK2 16
MASTER
32
MCKO1 10
MCKO2 9
MCLK
77
NC1
36
NC10
62
NC2
38
NC3
40
NC4
42
NC5 44
NC6 46
NC7 48
NC8 50
NC9 58
PDN
31
PVDD
66
PVSS
64
R
65
RIN 52
ROUT1 49
ROUT2 45
ROUT3
41
ROUT4
37
RX0 57
RX1
59
RX2
61
RX3
63
RX4
67
RX5
69
RX6
71
RX7
73
SDTI1
28
SDTI2
27
SDTI3
26
SDTI4
25
SDTO1 17
SDTO2 14
TEST1
60
TEST2
68
TEST3 8
TVDD 3
TX0
78
TX1
79
UOUT 12
VCOM 53
VIN
76
VOUT 13
VREFH 54 XTI 7
XTL0
30
XTL1
29
XTO 6
Q703
TC7WU04FU
GND4
1
63 72 5
VCC
8
MX29LV040
Q702
A020
A119
A1031
A11 1
A12 12
A13 4
A14 5
A15 11
A16 10
A17 6
A18/VPP 9
A218
A317 A416
A515
A614
A713
A8 3
A9 2
DQ021
DQ122
DQ223
DQ325
DQ426
DQ527
DQ628
DQ729
VCC 8
VSS
24
CE
30
OE
32
WE/A18
7
C722
104Z
C811
104Z
C395
101J
C394
101J
C393
101J
C392
101J
C391
101J
C390
101J
C6411
223Z
C6403
223Z
C6405
223Z
C367 104Z
C6409
223Z
C818
330J
C817
330J
C800
330J
C808
104Z
C805
104Z
C814
330J
C781 104Z
C806
104Z
C815
104Z
C802
NC
C803
NC
C352
104Z
C365
222J
C351
330J
C350 221J
C366
104Z
C325
104Z
C326
104Z
C322
104Z
C304C305
C306C307 C303
101J
C312
101J
C313
101J
C314C315
C316
C317
C318C319
C320C321
C300C301
C302
101J
C310
C311
C328
330J
C327
330J
C323
104Z
C308 103Z
R6411
1.0
1/2W
R6403 33
1/2W
R405
47K
R389
470
R363
R397
R390
22K
R381
22K
R375 470
R379
22K
R380
22K
R374 470
R396
R344
R373
470
R331
470
R377
22K
R372
NC
R371
NC
R6407
3.3
1W
R6408
3.3
R6405
47K
R6406
1K
R815 330
R809
NC
R811
NC
R812
330
R814
330
R813
330
R355
10K
R356
10K
R806
1K
R800
56
R803
1K
R805
1K
R823
56
R822
56
R821
56
R824
1K
R846
NC
R847
NC
R848
1K
R829
1K
R827
NC
R808
1K
R781
1M
R401
47K
R404
47K
R403
47K
R402
47K
R410 470K
R409
470K
R807
56
R849
R816
56
R828
2.2K
R804
56
R802
56
R801
56
R819
56
R820
560
R818
330
R817
56
R810
12K
R855
100K
R854
100K
R853
15K
R852
15K
R851
NC
R850
NC
R826
56
R825
56
R384
220K
R382
22K
R378
22K
R330 470
R376
270
R388
100
R385
100
R383
10K
R370
5.6K
R369
2.2K
R367
1K
R368
47K
R350
220K
R349
220K
R6402
10
1/2W
R345
47K
R346
47K
R357
000J
R358
000J
R365
NC
R364
NC
R832
2.2K
R833
4.7K
R835
2.2K
R834
4.7K
R831
2.2K
R830
NC
R836
2.2K
R837
4.7K
R839
2.2K
R838
4.7K
R840
2.2K
R841
4.7K
R843
2.2K
R842
4.7K
R845
4.7K
R844
2.2K
R877
4.7K
R874
4.7K
R873
4.7K
R862
4.7K
R865
4.7K
R866
4.7K
R870
4.7K
R884
2.2K
R869
4.7K
R879
2.2K
R880
2.2K
R883
2.2K
R887
2.2K
R888
2.2K
R891
2.2K
R892
2.2K
R354
4.7K
R353
4.7K
R352
000J
R351
000J
R309
000J
R308
000J
R302
330
R326
47K
R305
330
R328
47K
R329
47K
R327
47K
R325
470K
R303
330
R334
470K
R335
470K
R313
330
R336
47K
R337
47K
R315
330
R338
47K
R317
330
R340
47K
R341
47K
R319
330
R342
47K
R343
47K
R321
330
R339
47K
R322
47K
R323
47K
R301
330
R324
470K
R332
47K
R311
330
R333
47K
R362
10K
R361
10K
R320
330
R318
330
R316
330
R312
330
R314
330
R310
330
R307
R306
NC
R300
330
R304
330
R347
10K
R386
2.2K
R387
2.2K
R348
10K
R360
470
R359
470
Q305
OR MPC4570
NJM4565M
5
8
6
7
Q804
NJM4565M-D
5
8
6
7
Q802
NJM4565M-D
5
8
6
7
Q801
NJM4565M-D
5
8
6
7
Q803
NJM4565M-D
5
8
6
7
Q302
OR MPC4570
NJM4565M-D
5
8
6
7
Q305
OR MPC4570
NJM4565M
3
2
4
1
Q801
NJM4565M-D
3
2
4
1
Q802
NJM4565M-D
3
2
4
1
Q803
NJM4565M-D
3
2
4
1
Q804
NJM4565M-D
3
2
4
1
Q302
OR MPC4570G2
NJM4565M-D
3
2
4
1
C380
C357
C356
C355
C354
47/16
C6404
10/16
C6406
10/16
C362
10/16
C6412
10/16
C6410
10/16
C809
330/6.3
C804
2.2/50
C751
220/6.3
C807
100/6.3
C813
330/6.3
C816
100/6.3
C846
10/16
C847
10/16
C35347/16
C358
47/16
C349
10/16
C359
10/16
C341
100/16
C342
100/16
C849
NC
C854
10/16
C853
10/16
C852
10/16
C851
10/16
C850
10/16
C856
10/16
C855
10/16
C844
220/16
C843
220/16
C346
10/16
C345
10/16
C347
10/16
C348
10/16
C363
10/16
C364
10/16
C368
10/16
C374
10/16
C373
10/16
D802
D806
D801 D805
C752
104Z
C361 224K
C360
474K
C379
224K
C378
224K
C377
474K
C375
474K
C343
104Z
C344
104Z
C381
104J
C376
104J
C372
104J
C371
104J
C369
472J
C370
472J
Q310
Q309
Q314
Q311
Q308
RN1441
Q316
Q313
RN1441
Q307
RN1441
Q312
RN1441
Q318
Q319
Q317
Q306
OR KRA102S
RN2402
Q323
OR KRA102S
RN2402
Q320
OR KRA102S
RN2402
P351
C826
821J
C825
821J
C824
821J
C823
822J
C822
821J
C821
821J
C820
821J
C819
NC
C830
101J
C829
122J
C832
101J
C831
122J
C828
NC
C827
NC
C833
122J
C834
101J
C835
101J
C836
123J
C838
101J
C837
122J
C840
101J
C839
122J
C842
101J
C841
122J
L783
220K
L781
LM182
L782
LM182
L803
022M
L800
022M
L801
022M
L802
LM182
X781
CSTCV12.2MTJ0C4
Q6408
RN1402
KRC102S
P301
CD
TAPE-1 IN
TAPE-1 OUT
P305
FRONT
SURR
CENTER
P304
VIDEO-1 OUT
VIDEO-1 IN
VIDEO-2 IN
P261A
Q322
79L07
G
I
O
Q321
78L07
G
I
O
Q6403
79M12
G
I
O
Q6402
78M12
G
I
O
Q6405
78M12
G
I
O
Q6406
7805
G
I
O
Q6407
2SB1068-K
P406
+22V
+7V
+12VA
DMIXR
DMIXL
CDR SELDA
SELCK
SELMUT
-7V -12VA
-22V
TOL
V1OL V1OR
TOL TOR
CDL
TOR
+12VVD
TUR
TUL
V4R
TIR V4L
CDR +5VDSP
CDL
TIR
TIL TIL
V3IR OUT_R
V3IR V3IL
V2IR OUT_L
V2IL
V1IR OUT_C
V3IL V1IL OUT_RS
OUT_LS OUT_L
OUR_LB
OUT_SW
DVDR
DVDL
OUT_R LPO
V2IR
GND
OUT_RS RPO
MC
MRS RSPO
V1OR V1OL
V2IL MLS
GND
LSPO
MSW
OUT_LS CPO
OUT_C
SBO
ADCR+
DAC_R DAC_L DAC_C
DAC_RS DAC_LS
DAC_SBL
DAC_SW
ADCL+
V1IR
V1IL
DVDR
SWPO
DVDL DAC_L
DMIXR DMIXL
MRS
AMUT
MLS
+12VA
MSW
T1RECMUT
V1RECMUT
MC
DAC_R
DAC_SW
+2.5
+3.3V
ADCL+
ADCR+
A3
A2
A1
A0
D0
D1
D2
D3
CODECPD
D4
CODECCS
DSPDA_33
DSPCLK_33
D5
+12VA D6
DACDA4
D7
DACDA3
CS
DACDA2
A10
-12VA
DACDA1
OE
DAC_LS DAC_RS
DAC_SBL
3VDSI
3VINT1 3VINT0
DALRCK
DACBCK
ADSDO
DIRLRCK
DIRBCK
SAI_SDOUT
DIRMCKO
+3.3V
OMCK
DAC_SW
+5VDSP
DACDA4
DACDA3
3VINT1
DAC_C DSPXTI
3VINT0
+5VDSP
DAC_R
DAC_L
RX1 RX2
RX3
TX
TX
TX
RX1
RX2
RX3
Refer to the following table about the parts displyed by mark " "
TX-SR502
DD, DC
TX-SR502E
PP
TX-SR502
GQ, GR, PA
TX-SR502
WT
HT-R520
DD, DC
Q181 NO
YES
NO NO NO
Q6407 NO
YES
YES YES NO
Q6408 NO
YES
YES YES NO
Q7301 NO
NO
NO NO YES
L181 NO
YES
NO NO NO
L7301 NO
NO
NO NO YES
X181 NO
YES
NO NO NO
C181 NO
YES
NO NO NO
C182 NO
YES
NO NO NO
C183 NO
YES
NO NO NO
C184 NO
YES
NO NO NO
C185 NO
YES
NO NO NO
C186 NO
YES
NO NO NO
C187 NO
YES
NO NO NO
C300 101K
471J
471J 471J 101K
C301 101K
471J
471J 471J 101K
C304 101J
471J
471J 471J 101J
C305 101J
471J
471J 471J 101J
C310 101J
471J
471J 471J 101J
C311 101J
471J
471J 471J 101J
C314 101J
471J
471J 471J 101J
C315 101J
471J
471J 471J 101J
C316 101J
471J
471J 471J 101J
C317 101J
471J
471J 471J 101J
C318 101J
471J
471J 471J 101J
C319 101J
471J
471J 471J 101J
C320 101J
471J
471J 471J 101J
C321 101J
471J
471J 471J 101J
C7301 NO
NO
NO NO YES
C7302 NO
NO
NO NO YES
C7303 NO
NO
NO NO YES
C7304 NO
NO
NO NO YES
C7305 NO
NO
NO NO YES
C7306 NO
NO
NO NO YES
C7307 NO
NO
NO NO YES
R181 NO
YES
NO NO NO
R182 NO
YES
NO NO NO
R183 NO
YES
NO NO NO
R184 NO
YES
NO NO NO
R6405 NO
YES
YES YES NO
R6406 NO
YES
YES YES NO
R6407 YES
NO
NO NO YES
R6408 NO
YES
YES YES NO
R7003 000J
33K
10K 10K 000J
R7004 NO
56K
33K 10K NO
R7078 000J
33K
33K 33K 000J
R7079 000J
000J
000J 000J 10K
R7080 10K
10K
10K 10K 4.7K
R7178 NO
56K
56K 56K NO
R7179 NO
NO
NO NO 33K
R7180 10K
10K
10K 10K 33K
R185 YES
NO
YES YES YES
R186 YES
NO
YES YES YES
R187 YES
NO
YES YES
YES
U01
NADG-8230
PRE-AMPLIFIER PC BOARD
TO NAETC-8234
L
R
L
R
SUBWO
PREOU
T
NC
NC
NC
NC
DVD
SUBWOOFER
P302
NC
REF NO.
NC
NC
NC
NC
A
1
2
3
4
5
BCDEFGH

Onkyo TX-SR502 Specifications

General

Brand	Onkyo
Model	TX-SR502
Category	Receiver
Language	English