DOWNLOAD Sony STR-DH520 Service Manual ↓ Size: 4.8 MB | Pages: 73 in PDF or view online for FREE

Model
STR-DH520
Pages
73
Size
4.8 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
str-dh520.pdf
Date
PREV: Sony STR-DH820 Service Manual

Sony STR-DH520 Service Manual ▷ View online

STR-DH520
STR-DH520
21
21
4-9.  SCHEMATIC DIAGRAM – MAIN Board (2/4) –
1
A
B
C
D
E
F
G
H
I
J
K
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
MAIN BOARD (2/4)
25
26
24
23
27 28 29 30
32
33
34
1
2
3
4
5
6
7
8
9
10
12
13
14
15
16
11
31
(CHASSIS)
61
1
0
-61
-1
0
61
1
0
-61
-1
0
61
1
0
-61
-1
0
-1
0.4
-0.5
0.4
-1
1
-1
0.4
-0.5
0.4
-1
1
-1
0.4
-0.5
0.4
-1
1
-60
0
-1
-1
0
0
-60
0
-1
-1
0
0
-60
0
-1
-1
0
0
0
0
3.3
3.3
0
0
-61
3.3
-61
0
-60
0
0
0
-60
0
15
-61
61
61
1
0
0
0
0
0
-60
-1
1
-61
61
61
1
0
0
0
0
0
-60
-1
1
E
2
3
4
5
SL_OUT
SR_OUT
HP
FR_OUT
FL_OUT
HP_DET
FL_OUT
Q653
MN2488-OPY-MK
SR +VE
R662
6.2k
47k
R680
2.2k
R656
1.5k
R664
C679
0.022
82k
R657
4.7k
R661
68k
R666
Q604
MP1620-OPY-MK
SL -VE
Q603
MN2488-OPY-MK
SL +VE
R679
10
Q654
MP1620-OPY-MK
SR -VE
15k
R665
R663
0.22
C670
0.01
C661
220p
Q701
1.5k
R714
C711
220p
Q703
MN2488-OPY-MK
FL +VE
R729
10
2.2k
R706
C720
0.01
82k
R707
4.7k
R711
C729
0.022
Q704
MP1620-OPY-MK
FL -VE
15k
R715
R713
0.22
R712
6.2k
68k
R716
39k
R326
Q324
2SC3052EF-T1-LEF
C325
10
50V
10k
R327
6.8k
R325
Q321
PROTECTOR
PROTECTOR
PROTECTOR
PROTECTOR
PROTECTOR
2SC3052EF-T1-LEF
1k
R328
1k
R601
C602
100p
1k
R651
C652
100p
68k
R652
1k
R751
1k
R701
C752
100p
C702
100p
68k
R752
68k
R702
2.2k
R375
Q375
RELAY DRIVER
2SC3052EF-T1-LEF
47k
R730
R709
100
R710
100
R660
100
R659
100
47k
R378
Q325
2SC2713-G
100k
R672
100k
R722
CL364
CL362
CL363
D327
MC2838-T112-1
D326
MC2838-T112-1
R610
100
82k
R607
R609
100
2.2k
R606
R613
0.22
C611
220p
R612
6.2k
4.7k
R611
1.5k
R614
100k
R622
C620
0.01
15k
R615
68k
R616
47k
R630
C629
0.022
R629
10
47k
R670
47k
R620
R545
0.47
R546
0.47
Q702
Q651
2SA1175-HFE
BIAS
2SA1175-HFE
BIAS
Q601
2SA1175-HFE
BIAS
Q652
2SD2144S-V
BIAS
2SD2144S-V
BIAS
Q602
2SD2144S-V
BIAS
1
2
3
B
C
E
L678
1.7uH
R678
4.7
L628
1.7uH
R628
4.7
L728
1.7uH
R728
4.7
68k
R602
C703
10p
C753
10p
C653
10p
C603
10p
C607
47 35V
C707
47 35V
C657
47 35V
C610
10
50V
C710
10
50V
C660
10
50V
C760
10
50V
560
R608
560
R708
560
R658
68k
R704
2.2k
R703
C705
3p
C712
220
10V
68k
R604
2.2k
R603
C605
3p
C612
220
10V
68k
R754
C755
3p
C762
220
10V
2.2k
R753
47k
R720
C658
47p
C708
47p
C608
47p
C659
47p
C609
47p
C709
47p
Q712
2SA1514KT146S
Q662
2SA1514KT146S
Q611
2SA1514KT146S
Q320
2SA1514KT146S
Q612
2SA1514KT146S
Q661
2SA1514KT146S
CURRENT DETECT
CURRENT DETECT
CURRENT DETECT
CURRENT DETECT
CURRENT DETECT
CURRENT
DETECT
Q711
2SA1514KT146S
Q323
2SA1514KT146S
IC601
STK350-630TS-E
MUTE
+VOUT1
-VOUT2
COMP1
NF1
IN1
GND
IN2
NF2
COMP2
-VOUT2
+VOUT2
VCC
VCC
VEE
IC701
STK350-630TS-E
MUTE
+VOUT1
-VOUT2
COMP1
NF1
IN1
GND
IN2
NF2
COMP2
-VOUT2
+VOUT2
VCC
VCC
VEE
ET300
CN391
5P
NC
1
HP DETECT
R-CH
GND
L-CH
D302
1SS367-T3SONY
D303
1SS367-T3SONY
D670
DA2J10100L
D661
DA2J10100L
D720
DA2J10100L
D71
1
DA2J10100L
D620
DA2J10100L
D61
1
DA2J10100L
D375
DA2J10100L
22k
R320
R321
22k
C320
220
10V
C321
220
10V
R377
82
C322
0.1
R392
330
330
R393
R394
330
330
R395
RY375
12V
1
2
3
4
5
6
[SR]
[SL]
[FL]
[SL]
[SR]
[FL]
[FR]
68k
R654
C655
3p
C662
220
10V
2.2k
R653
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
B
C
E
1
2
3
B
C
E
1
2
3
B
C
E
1
2
3
B
C
E
1
2
3
B
C
E
SL_OUT
PROTECTOR
SR_OUT
PRE DRIVER
IC701
PRE DRIVER
IC601
CL401
CL398
CL387
CL385
CL386
CL384
CL399
CL400
CL391
CL390
CL383
CL388
CL389
HEADPHONE
BOARD
CN790
(Page 38)
MAIN BOARD (3/4)
(Page 22)
MAIN BOARD (4/4)
(Page 23)
MAIN
BOARD
(1/4)
(Page 20)
MAIN
BOARD
(1/4)
(Page 20)
MAIN
BOARD
(1/4)
(Page 20)
A
7
6
3
2
1
Ver. 1.2
STR-DH520
STR-DH520
22
22
1
A
B
C
D
E
F
G
H
I
J
K
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
MAIN BOARD (3/4)
18
17
25 26
20 21
22
24
23
19
35
36
37
39
38
0
0
0
0
0
0
0
0
-15
-7
15
7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
7
0
0
0
-7
0
0
0
0
0
0
0
0
0
0.7
I
O
G
I
O
COM
8
7
6
5
1
2
3
4
G
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
DATA
CLK
SW
C_SUR
PROTECTOR
HP_DET
BRIDGE
SBL_R
LR
SW
HP
1k
R451
1k
R402
1k
R452
C400
2200p
W002
CC01
100p
CC51
100p
CC02
100p
CC52
100p
CC08
100p
CC58
100p
CC03
100p
CC53
100p
CC05
100p
CC55
100p
1k
R401
1k
R453
1k
R403
A_GND
C405
2200p
C449
100p
C450
100p
J405
D352
1SR154-400TE-25
C350
0.47
C352
0.47
RY301
2.2k
R301
100k
R467
47k
R304
47k
R470
C471
10
50V
1k
R466
1k
R455
1k
R405
1k
R408
C458
4.7
50V
C408
4.7
50V
1k
R458
0
R354
15k
R348
C547
10 50V
C546
10 50V
CL300
CL301
CL302
CL303
CL304
CL305
CL306
CL307
CL308
CL309
CL310
CL311
CL312
CL313
CL314
CL315
CL316
CL317
CL318
CL319
CL320
CL321
CL322
CL323
CL324
CL326
CL327
CL328
CL329
CL335
CL336
CL337
CL338
CL340
CL341
CL344
CL345
CL346
CL347
CL378
CL379
CL376
CL380
CL377
CL348
C489
2200p
C499
2200p
CL325
CL392
CL382
CL381
CL333
C351
100
16V
C353
100
16V
220
R450
220
R449
C505
33p
1k
R506
J406
10k
R503
IC500
NJM4565M-D
OUT1
IN1(-)
IN1(+)
IN2(+)
-V
IN2(-)
OUT2
+V
C506
1
C502
1
50V
1k
R357
J407
1k
R410
1k
R420
CC21
100p
CC20
100p
C380
10 50V
C381
10 50V
C382
10 50V
C383
10 50V
C384
10 50V
C385
10 50V
C386
10 50V
C387
10 50V
1k
R380
1k
R381
1k
R382
1k
R383
1k
R384
1k
R385
1k
R386
1k
R387
100
R928
C521
100p
47k
R517
47k
R518
56k
R510
C510
33p
6.2k
R507
C504
22 25V
6.8k
R508
C508
1 50V
1k
R500
C514
2200p
C503
10
50V
4.7k
R515
47k
R505
C507
22 25V
C501
47 35V
FB501
1kohm
220p
C388
C389
220p
1k
R388
1k
R389
C390
3300p
C399
100p
C398
100p
C391
3300p
C392
3300p
C393
3300p
C394
3300p
C395
3300p
C396
3300p
C397
3300p
D301
DA2J10100L
GND
HPFN
LPF01
LPF02
LPFN2
LPFN1
SWVOL
VCC
DGND
DA
TA
CLK
VEE
FROUT
FLOUT
SWOUT
COUT
SROUT
SLOUT
SBROUT
SBLOUT
GND
GND
SUB2L
SUB2R
RECL3
RECR3
RECL2
RECR2
RECL1
RECR1
GND
SBL IN2
SBR IN2
SL IN2
SR IN2
C IN2
SW IN2
FL IN2
FR IN2
GND
INL12
INR12
INL1
1
INR1
1
INL10
INR10
INL9
INR9
INL8
INR8
INL7
INR7
INL6
INR6
INL5
INR5
INL4
INR4
INL3
INR3
INL2
INR2
INL1
INR1
GND
SBLIN
SBRIN
SLIN
SRIN
CIN
SWIN
FLIN
FRIN
GND
ADC ROUT
ADC LOUT
GND
SUB1 R
SUB1 L
GND
J409
2
3
1
5
4
7
6
J401
R302
100
C488
0.1
4.7k
R512
4.7k
R514
4.7k
R516
CNP411
19P
+7V
NC
-7V
ADCL OUT
AGND
AGND
ADCR OUT
 DAC FR IN
 DAC FL IN
 DAC SW
DAC C
DAC SR IN
DAC SL IN
DAC SBR IN
DAC SBL IN
DCAC
TUNER_R
TUNER_L
19
TUNER_L
CNP410
19P
NC
1
+3.3V
DGND
REG_TEMP
HP_RY
PREOUT_SW_ RY
FL-FR_RY
SBL-R_RY
BRIDGEABLE_RY
C-SLR-RY
PROTECTOR
LIMITER
HP_DET
+15V_TUNER
EVOL_DATA
EVOL_CLK
VIDEO2_R
AGND
VIDEO2_L
AUTO CAL MIC
PORTABLE IN
(MINI JACK)
2
4
5
1
3
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20
59
57 56
60
58
55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
BD3470KS2
IC400
DIR FUNCTION SELECT
IC400
IC B/D
IC352
KIA7907PI
-7V REG
IC350
KIA7807API-U/PF
IC352
+7V REG
IC350
DCAC
OPERATION
AMPLIFIER 
(DCAC AMP)
IC500
IC B/D
Q301
RELAY DRIVER
2SC3052EF-T1-LEF
L
R
SA-CD/CD
AUDIO IN
L
R
L
R
SAT/CATV
AUDIO IN
L
R
VIDEO
AUDIO OUT
L
R
VIDEO
AUDIO IN
SUBWOOFER
AUDIO OUT
TV
AUDIO IN
DIGITAL
BOARD
(4/4)
CN2105
(Page 29)
DIGITAL
BOARD
(4/4)
CN2114
(Page 29)
MAIN BOARD
(4/4)
(Page 23)
MAIN BOARD (1/4)
(Page 20)
MAIN BOARD (1/4)
(Page 20)
MAIN BOARD (2/4)
(Page 21)
MAIN BOARD
(4/4)
(Page 23)
(UK, TW, AUS, ECE)
(UK, TW,
AUS, ECE)
4
5
6
B
C
9
8
4-10.  SCHEMATIC DIAGRAM – MAIN Board (3/4) –    
•  See page 45 and 46 for IC Block Diagrams.
Ver. 1.2
STR-DH520
STR-DH520
23
23
4-11.  SCHEMATIC DIAGRAM – MAIN Board (4/4) –
1
A
B
C
D
E
F
G
H
I
J
K
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
MAIN BOARD (4/4)
27
28 29
32
31
33
34
30
35
36
37
38
39
1
2
3
4
5
SBL
SBR
SBL_R
SL_OUT
SR_OUT
C_SUR
C_OUT
LR
BRIDGE
FR_OUT
FL_OUT
C
SR
SL
FL
FR
RY920
1
2
3
5
6
8
4
7
2.2k
R921
Q920
RELAY DRIVER
2SC3052EF-T1-LEF
CNP920
5P
R1 (UPPER TAP)
R1 (LOWER TAP)
R1 GND
R1 (LOWER TAP)
R1 (UPPER TAP)
W001
Q360
RELAY DRIVER
2SC3052EF-T1-LEF
Q355
RELAY DRIVER
2SC3052EF-T1-LEF
Q365
RELAY DRIVER
2SC3052EF-T1-LEF
1k
R355
RR13
10
CC13
0.01
RR14
10
CC14
0.01
RR11
10
CC11
0.01
CC12
0.01
RR12
10
CC15
0.01
RR15
10
RR17
10
CC17
0.01
47k
R358
47k
R363
47k
R925
C911
0.1
C910
1SR154-400TE-25
D910 ~ D913
D912
D911
D910
D913
0.1
CL369
CL370
CL371
CL373
CL372
CL393
2.2k
R350
47k
R353
Q350
RELAY DRIVER
2SC3052EF-T1-LEF
F912
T6.3A 250V
F913
T6.3A 250V
47k
R366
1k
R367
RR18
10
CC18
0.01
CL356
CL357
CL358
CL359
CL360
CL361
CL355
JWH603
75
C912
2200
25V
C913
1000
25V
D921
D5SBA60-F
CL374
CL375
C932
0.1
C933
0.1
2.2k
R360
TB503
1
2
3
4
5
6
TB502
1
2
3
4
D350
DA2J10100L
D365
DA2J10100L
D355
DA2J10100L
D360
DA2J10100L
D920
DA2J10100L
2
3
4
5
CL366
CL367
CL368
F910
T2.5A 250V
F911
T2.5A 250V
CNP930
5P
NC
1
R2 AC
CENTER TAP
NC
R2 AC
C930
6800
71V
C931
6800
71V
R351
33
R365
33
R356
33
R361
33
R920
33
TB504
1
2
3 4
5
RY360
12V
1
2
3
4
5
6
RY355
12V
1
2
3
4
5
6
RY365
12V
1
2
3
4
5
6
RY350
12V
1
2
3
4
5
6
SBR_OUT
SBL_OUT
+
+
-
-
+
-
-
+
+
-
SURROUND
R
L
FRONT
CENTER
L
R
-
+
+
-
SURROUND BACK/
FRONT HIGH
L
R
SPEAKERS
B
MAIN POWER
TRANSFORMER
T901
(Page 31)
C
MAIN POWER
TRANSFORMER
T901
(Page 31)
MAIN BOARD
(3/4)
(Page 22)
7
MAIN BOARD (2/4)
(Page 21)
MAIN BOARD
(3/4)
(Page 22)
(UK, TW, AUS, ECE)
9
8
STR-DH520
STR-DH520
24
24
4-12. 
PRINTED WIRING BOARD – DIGITAL Board (Side A) –    
• See page 11 for Circuit Boards Location.    • 
: Uses unleaded solder.
1
A
B
C
D
E
F
G
H
I
J
K
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
IC2352
IC2351
IC2421
IC2805
IC2501
1
14
15
28
IC2106
1
100
30
31
81
80
50
51
IC2105
IC2802
IC2804
133
132
88
45
44
176
89
1
IC2801
IC2020
IC2019
IC2033
IC2009
IC2006
1
12
13
24
25
36
37
48
IC2803
IC2303
6
1
5
IC2010
O
VCC
O
VCC
1
14
CN2103
CN2105
1
19
1
19
CN21
14
20
1
CN2513
10
11
CN2002 (1
1P)
1
28
9
CN2003 (9P)  (US, CND)
CN2605
R2860
R2861
R2863
R2864
R2865
R2866
R2867
R2868
R2099
C2899
R2872
R2873
R2875
R2876
R2880
R2881
R2882
R2886
R2889
R2891
R2892
R2895
R2897
R2898
R2899
C2101
1
4
CN2501
C2114
C21
19
C2501
C2502
C2503
C2504
C2506
C2507
C2508
C2509
FB2007
C2125
C2126
C2127
C2128
C2510
R2100
C251
1
C2512
R2103
C2514
C2515
C2516
C2517
C2130
R2108
X2800
C2131
X2801
D2302
D2303
D2110
C2909
R2112
R21
14
R2116
C2140
R2119
C2912
FB2603
C2913
FB2604
R2311
C2917
C2918
FB2608
C2531
R2509
R2123
L2007
R2124
L2008
FB2031
R2125
FB2801
FB2032
R251
1
R2512
R2321
R2322
R2324
R2132
C2351
D2717
FB2043
C2354
C2355
C2358
C2359
R2912
C2361
R2917 R2918 R2919
R2920
R2921
R2923
C2370
R2925
R2926
R2928
R2158
R2540
R2159
R2541
R2351
R2930
R2160
R2354
R2356
R2357
R2358
R2936
R2938
R2941
R2172
R2173
R2949
R2759
R2957
R2958
R2959
R2960
R2961
R2962
R2963
R2197
R2392
RB2102
RB2103
RB2104 RB2105
RB2106
RB2107
RB2109
FB2884
FB2885
FB2886
FB2887
FB2889
FB2890
RB2119
FB2891
FB2892
JL2808
JL2809
JL2811
X2101
JL2812
C2203
C2011
C2206
C2013
C2208
C2016
C2402
CN2602
1
9
C2022
C2023
FB2101
C2413
R2006
R2007
C2418
C2421
R2011
C2422
C2424
D2018
R2015
FB2501
FB2502
C2814
JL2849
C2815
C2816
C2818
R2601
R2602
C2823
R2607
R2608
R2220
1
2
15
14
CN2061
C2825
R2609
C2826
R2417
R2802
R2610
R2612
R2613
R2614
R2421
R2615
R2809
R2616
R2617
R2618
R2619
C2838
C2069
R2620
R2621
R2815
R2622
R2816
C2070
C2264
C2459
C2841
C2072
C2842
R2626
C2267
C2074
C2846
C2847
C2849
R2052
C2270
R2054
R2824
C2465
R2249
R2825
C2272
C2466
R2826
C2273
R2057
C2468
C2274
R2058
C2469
R2059
R2829
C2853
R2250
C2470
C2858
R2831
R2834
R2835
R2837
C2860
R2838
C2861
R2839
C2863
C2864
C2865
C2096
C2866
C2868
R2840
R2842
R2843 R2846
R2847
R2849
C2873
C2874
C2875
C2876
C2877
C2878
C2879
R2851
R2852
R2854
R2855
R2856
R2857
R2858
C2881
C2882
C2883
C2869
DIGITAL BOARD
(SIDE A)
X2101
J2301
OPTICAL IN
OPTICAL
SAT/CATV IN
DIGITAL (ASSIGNABLE)
COAXIAL
BD/DVD IN
TV
FLASH
PROGRAMMING
10
11
1
28
9
AM
ANTENNA
TN1
)0ȍ
COAXIAL
TUNER
(FM/AM)
(CHASSIS)
CN2003 : 9P (US, CND)
1-883-126-
11
(11)
(UK, TW,  AUS, ECE)
B
MAIN
BOARD
CNP410
(Page 19)
G
TEMP-
SENSOR
BOARD
CN250
(Page 41)
H
DISPLAY
BOARD
CNS106
(Page 39)
I
HDMI RE PC
BOARD
CN3516
(Page 32)
J
HDMI RE PC
BOARD
CN3513
(Page 32)
CN2002 : 11P
F
STANDBY-A 
VIDEO MT PC
BOARD
CN271
(Page 30)
A
MAIN
BOARD
CNP411
(Page 19)
Note 2: When the DIGITAL board (Suffi x-11) is replaced, refer to 
“NOTICE OF BOARD VERSION CHECK” (page 4).
Note 1: IC2106 on the DIGITAL board cannot exchange with single. 
When this part on the DIGITAL board is damaged, exchange 
the entire mounted board.
Ver. 1.2
Page of 73
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