DOWNLOAD Sony STR-DH720 / STR-DH720HP Service Manual ↓ Size: 9.19 MB | Pages: 127 in PDF or view online for FREE

Model
STR-DH720 STR-DH720HP
Pages
127
Size
9.19 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
str-dh720-str-dh720hp.pdf
Date
PREV: Sony STR-DH520 Service Manual

Sony STR-DH720 / STR-DH720HP Service Manual ▷ View online

STR-DH720/DH720HP
STR-DH720/DH720HP
17
17
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
D-VIDEO BOARD (4/4)
8
11
10
12
9
6
7
1
2.2 2.2 2.2 2.2 2.2 2.2 2.2 2.2 2.2 3.3
0 1.8 2.2 2.4 2.4 2.4 2.4 2.4 2.4 2.4 1.8
0 3.3
0
0
1.8
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
0
3.3
3.3
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
1.8
0
1.5
2.1
5
5
5
3.3
0
2
0
0.7
0.7
1.8
0.7
0.7
0
0.7
0.7
1.8
0
0
0
1.8
1.8
0
0.6 0
0
0
0
0
0
0
0
0
0
1.8 0
3.3 0
0
0
0
0
0
0
0
0
3.3 3.3
3.3
6
5
3.3
3.3
1.8
0.5
1.5
1.5
3.3
2.8
1.6
0.1
C3584
1
C3585
10uH
L3508
10uH
L3507
10uH
L3509
0.1
C3558
0.1
C3562
0.1
C3567
0.1
C3568
0.1
C3570
0.1
C3517
0.1
C3569
0.1
C3566
0.1
C3563
0.1
C3564
0.1
C3561
0.1
C3515
0.1
C3557
0.1
C3555
0.1
C3556
100
R3581
680
R3580
18
R3582
47 10V
C3572
47 10V
C3573
47 10V
C3571
47 10V
C3516
100 10V
C3574
100 10V
C3575
10
R3583
10
R3584
10
R3576
JL3563
47k
R3579
R3593
10k
1.8k
R3599
0
R3597
1.8k
R3600
10
R3577
4.7k
R3578
10uH
L3510
JL3590
JL3591
1
C3514
JL3588
470p
C3578
JL3583
1
C3590
1
2
3
4
5
6
7
8
FL3501
90
1
2
3
4
5
6
7
8
FL3502
90
1
C3520
1
C3521
68
R3634
68
R3673
0
R3676
0.1
C3503
10V
47
C3506
470
R3678
10k
R3680
0.1
C3502
47
R3681
SA10QA04
D3516
SA10QA04
D3511
0
R3518
1k
R3528
0.1
C3504
47k
R3585
TC7WHU04FK
IC3502
4
3
2
1
5
6
7
8
MM1661JHBE
IC3515
Vout
NC
GND
Cn
Cont
NC
NC
Vi
n
4
3
2
1
5
6
7
8
OUT2
IN3
OUT1
VCC
IN1
OUT3
NC
GND
22
RB3510
22
RB351
1
22
RB3512
22
RB3513
10
R3519
10
R3520
10
R3521
22
RB3514
22
R3524
22
R3523
22
R3526
22
RB3515
22
R3525
22
RB3516
22
RB3517
0
R3500
220ohm
FB3504
NJM2878F3-05 (TE2)
IC3516
1 CONT
2 GND
3 NC
4
VOUT
5
VIN
0uH
FB3514
0uH
FB3505
19P
CN3500
1 DATA2+
2 DATA2 SHIELD
3 DATA2-
4 DATA1+
5 DATA1 SHIELD
6 DATA1-
7 DATA0+
8 DATA0 SHIELD
9 DATA0-
10 CLOCK+
11 CLOCK SHIELD
12 CLOCK-
20 21
13 CEC
14 RESERVE(NC)
15 SCL(5V)
16 SDA(5V)
17 DDC/CEC GND
18 +5V POWER
19 HOT PLUG DET
22 23
220k
R3684
10 11 12 13 14 15 16 17 18
1
2
3
4
5
6
7
8
9
19 20 21 22 23 24 25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
SII9134CTU
IC3501
DE
HSYNC
VSYNC
SPDIF
MCLK
SD3
SD2
SD1
SD0
WS
SCK
CVCC18
GND
IOVCC33
DCLK
DR0
DL0
DR1
DL1
DR2
DL2
DR3
DL3
INT
RESET#
AGND
EXT_SWG
PVCC1
AGND
TXC-
TXC+
AVCC18
TX0-
TX0+
AGND
TX1-
TX1+
AVCC18
TX2-
TX2+
AGND
PVCC2
AGND
AVCC33
DCCPWR5V
DSCL
DSDA
CSCL
CSDA
CI2CA
HPD
TMODE
IOVCC33
GND
VPP18
D35
D34
D33
D32
D31
D30
D29
D28
CVCC18
GND
IOVCC33
D27
D26
D25
D24
D23
D22
D21
D20
D19
CVCC18
D18
D17
D16
D15
D14
D13
D12
D11
D10
D9
GND
IDCK
IOVCC33
D8
D7
D6
D5
D4
D3
D2
D1
D0
CVCC18
GND
10p
C3559
MCK
TX_RST
CSDA
CSCL
SCK
WS
SD0
SD1
SD2
SD3
SPDIF
TX_5VPWR
R_SPDIF
CEC
Q[20]
Q[21]
Q[22]
Q[23]
Q[24]
Q[25]
Q[26]
Q[27]
Q[28]
Q[29]
Q[30]
Q[31]
Q[32]
Q[33]
Q[34]
Q[35]
DE
HSYNC
VSYNC
Q[19]
Q[18]
Q[17]
Q[16]
Q[15]
Q[14]
Q[13]
Q[12]
Q[11]
Q[10]
Q[9]
Q[8]
Q[7]
Q[6]
Q[5]
Q[4]
Q[3]
Q[2]
Q[1]
Q[0]
TX_INT
DCK
TV OUT
ARC
HDMI
ASSIGNABLE
(INPUT ONLY)
D-VIDEO
BOARD
(1/4), (3/4)
(Page 14),
(Page 16)
1
D-VIDEO
BOARD
(1/4), (3/4)
(Page 14),
(Page 16)
5
D-VIDEO
BOARD
(2/4), (3/4)
(Page 15),
(Page 16)
6
D-VIDEO
BOARD
(3/4)
(Page 16)
7
HDMI TRANSMITTER
IC3501
+1.8V REG
IC3515
+5V REG
IC3516
SELECTOR
IC3502
2-14.  SCHEMATIC DIAGRAM – D-VIDEO Board (4/4) –
Note: IC3501 on the D-VIDEO board cannot exchange with 
single. When this part on the D-VIDEO board is damaged, 
exchange the entire mounted board.
STR-DH720/DH720HP
STR-DH720/DH720HP
18
18
2-15.  PRINTED WIRING BOARD – MAIN Board –
• 
 : 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
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
E
B
E
B
E
B
E
B
E
B
E
B
E
B
E
B
E
B
E
B
E
B
E
B
E
B
E
B
JR
JR
JR
JR
JR
JR
JR
JR
JR
JR
JR
JR
B
E
B
E
B E
B E
B E
B E
B E
B E
B E
B E
B
E
B E
B
E
B E
B
E
B
E
B E
B E B E
B
E
JR
JR
B E
B E
B E
B E
B
E
B
E
I
O
IC352
I
O
IC350
IC801
15
14
2
1
15
14
2
1
15
14
2
1
15
14
2
1
IC701
IC601
IC501
IC400
20
21
41
60
40
61
80 1
Q654
HS921
Q851
Q852
Q853
Q854
HS350
15
CNP920
R609
R610
R612
R613
R809
R810
R812
R813
LP401
R628
R629
L678
R828
R829
L878
C408
C603
C605
C607
C608
C609
C803
C610
C805
C612
C807
C808
C809
C810
R659
C812
R660
R662
R663
R859
C629
R860
R862
R863
C829
R678
R679
F910
R878
F91
1
R879
F912
F913
C458
C653
C655
C657
C658
C659
Q503
Q504
C853
C660
C855
C662
C857
C858
C471
C859
Q701
Q702
Q703
Q704
C860
C862
C679
RR1
1
RR12
RR13
RR14
RR15
RR17
RR18
C879
L728
J401
J405
Q551
Q552
Q553
Q554
R302
Q751
Q752
Q753
Q754
L550
R513
LP401
R709
R710
R712
R713
R728
R729
L778
R920
R545
R351
R546
R356
C703
C705
C707
R550
C320
C708
R551
C709
R553
R361
C325
R558
C710
R365
C712
R759
C912
C913
R567
R377
R760
R762
R763
C729
R
Y301
C545
C351
C546
C547
C353
R778
R779
C550
C552
C555
C557
C558
C559
C753
C560
C561
C755
C757
C758
C759
Q601
Q602
Q603
Q604
C760
C762
Q801
Q802
R
Y920
C779
D921
L628
L828
Q651
Q652
Q653
TB502
TB503
ET300
J409
C321
C380
C381
C382
C383
C384
C385
C386
C387
C930
C931
JWH603
JWH600
JWH601
JW758
JW770
JW796
JW797
JW603
JW609
JW803
JW612
JW807
JW624
JW628
JW833
JW660
JW665
JW670
JW671
JW672
JW674
JW677
JW691
JW709
JW710
JW713
JW721
JW728
JW741
JW742
JW743
JW746
JW757
JW762
JW775
JW787
JW788
JW601
JW801
JW804
JW61
1
JW613
JW815
JW625
JW633
JW641
JW643
JW646
JW707
JW708
JW731
JW732
JW751
JW752
JW755
JW759
JW760
JW773
JW783
JW792
JW604
JW605
JW621
JW821
JW824
JW635
JW636
JW639
JW645
JW650
JW682
JW689
JW693
JW738
JW740
JW753
JW756
JW763
JW768
JW772
JW774
JW782
JW805
JW614
JW809
JW617
JW623
JW627
JW629
JW820
JW630
JW637
JW642
JW649
JW654
JW666
JW667
JW673
JW694
JW695
JW718
JW739
JW744
JW747
JW766
JW790
JW795
JW648
JW651
JW656
JW659
JW661
JW663
JW690
JW717
JW719
JW722
JW745
JW761
JW764
JW769
JW776
JW779
JW780
JW784
JW798
JW600
JW606
JW607
JW610
JW615
JW619
JW620
JW622
JW816
JW818
JW826
JW638
JW832
JW644
JW652
JW657
JW658
JW662
JW664
JW668
JW678
JW683
JW684
JW685
JW688
JW692
JW504
JW700
JW704
JW712
JW716
JW724
JW726
JW729
JW749
JW767
JW777
JW778
JW781
JW785
JW791
JW793
JW602
JW608
JW800
JW802
JW618
JW811
JW626
JW631
JW632
JW634
JW640
JW655
JW669
JW676
JW680
JW681
JW686
JW687
JW698
JW699
JW703
JW705
JW711
JW714
JW715
JW720
JW725
JW733
JW734
JW736
JW737
JW750
JW697
JW701
JW616
JW808
JW813
JW647
JWH604
JWH602
TB504
JW653
RY
35
0
RY
35
5
RY
36
0
RY
36
5
R
Y375
JW819
JW675
19
1
CNP410
19
1
CNP41
1
1
5
CNP930
1
5
CN391
JW679
D326
D327
D910
D911
D912
D913
Q661
Q662
Q861
Q862
Q301
Q320
Q321
Q323
Q324
Q325
Q711
Q712
Q920
Q350
Q355
Q550
Q360
Q555
Q365
Q375
Q761
Q762
Q611
Q612
Q811
Q812
D365
D375
D761
D770
D61
1
D81
1
D620
D820
D661
D861
D670
D870
D301
D71
1
D720
D920
D350
D355
D550
D551
D360
D302
D303
D352
R401
R402
R403
R405
R408
R601
R602
R603
R604
R606
R607
R608
R801 R802
R803
R804
R611
R806
R807
R614
R808
R615
R616
R81
1
R620
R814
R815
R622
R816
R820
R822
R630
C400
C405
R830
R449
C602
R450
R451
R452
R453
R455
C802
R458
C611
R651 R652
R653
R654
R656
R657
R658
C811
R466
R467
C620
R851
R853
R854
R661
R856
R857
R470
R664
R858
R665
R666
C820
R861
R670
R864
R865
R672
R866
C449
R870
CL339
R872
C450
R680
R880
C652
C852
CL357
CL358
C661
JR601
JR602
CL362
CL363
CL364
C861
CL367
CL368
C670
CL369
CL370
CL371
CL372
CL373
C488
C870
C489
C499
R301
R304
R701
R702
R703
R704
R706
R707
R320
R708
R325
R326
R327
R328
R711
R714
R715
R716
R720
R722
R921
R730
R925
CL393
R544
R350
R547
R353
R354
R548
R549
R355
C702
R358
R552
R554
R360
R555
R556
R557
R363
R559
C711
R366
R367
R751 R752
R753
R560
R754
R562
R756
R563
R757
C910
R564
R758
C911
R565
R566
R568
C720
R569
R375
R378
R761
R764
R765
R766
R770
R772
C350
C352
D351
C548
R780
C551
C553
C554
CC01
CC02
CC03
CC05
CC08
C752
CC11
CC12
CC13
CC14
CC15
CC17
CC18
C761
JR700 JR701
JR706
C770
D536
CC51
CC52
CC53
CC55
CC58
C933
C932
C390
C397
C391
C392
R380
R387
C396
R385
R386
R388
C388
CL301
CL302
CL303
CL305
CL309
CL307
CL310
CL306
CL308
CL304
CL311
CL314
CL315
CL313
CL312
JR707
CL300
CL323
CL329
CL321
CL318
CL320
CL322
CL317
CL316
CL319
CL326
CL327
CL325
CL328
CL333
CL324
R381
R382
C393
CL382
CL381
R383
C394
R384
C395
CL340
CL341
CL337
CL338
CL336
CL335
C322
C389
R389
R357
R321
CL344
CL347
CL348
CL345
CL346
CL356
CL355
CL374
CL375
CL366
CL360
CL361
JR600
CL359
JR603
JR604 JR605
R852
JR606
JR607
CL376
CL399
CL392
CL387
CL380
CL389
CL401
CL398
CL385
CL378
CL394
CL386
CL396
CL390
CL384
CL388
CL391
CL379
CL400
CL395
CL377
CL383
CL397
R392
R393
R394
R395
CL351
CL350
CL349
C398
C399
R348
JR608
JR609
C491
C323
C402
C401
C324
C404
C403
C490
MAIN
BOARD
1-883-403-
24
(24)
–
+
–
+
–
+
–
+
SURROUND
BACK/
FRONT HIGH
SURROUND
CENTER
L
R
L
R
FRONT
SPEAKERS
(CHASSIS)
R
L
R
L
R
L
R
L
R
L
(CHASSIS)
(CHASSIS)
(CHASSIS)
TV
AUDIO
IN
VIDEO 1
AUDIO
OUT
VIDEO 1
AUDIO
IN
SAT/CATV
AUDIO
IN
SA-CD/CD
AUDIO
IN
SUBWOOFER
AUDIO
OUT
B
DIGITAL
BOARD
CN2114
(Page 6)
C
DIGITAL
BOARD
CN2105
(Page 6)
J
HEADPHONE
BOARD
CN790
(Refer to page 45
on original
service manual)
H
POWER
TRANSFORMER
(MAIN)
T901
(Page 23)
I
POWER
TRANSFORMER
(MAIN)
T901
(Page 23)
(CHASSIS)
ECE
+
–
R
L
R
L
STR-DH720/DH720HP
STR-DH720/DH720HP
19
19
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 (1/4)
18
20
21
22
19
1
2
3
4
5
6
7
8
9
10
12
13
14
15
16
11
17
-1
0
0
-60
0
-1
-60
0
-1
-1
0
0
-60
0
-1
-1
0
0
-60
0
-1
-1
0
0
61
1
0
-61
-1
0
61
1
0
-61
-1
0
61
1
0
-61
-1
0
61
1
0
-61
-1
0
-1
0.4
-0.5
-1
0.4
-0.5
-1
0.4
-0.5
-1
0.4
-0.5
0.4
-1
1
0.4
-1
1
0.4
-1
1
0.4
-1
1
-61
61
61
1
0
0
0
0
0
-60
-1
1
-61
61
61
1
0
0
0
0
0
-60
-1
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
SBL_OUT
SBR_OUT
FR_OUT
R813
0.22
Q503
MN2488-OPY-MK
SBL +VE
47k
R830
R863
0.22
Q753
MN2488-OPY-MK
FR +VE
4.7k
R811
47k
R780
82k
R857
Q801
2SA1175-HFE
2SA1175-HFE
1.5k
R764
4.7k
R861
C870
0.01
Q504
MP1620-OPY-MK
SBL -VE
4.7k
R761
68k
R766
1.5k
R814
R779
10
15k
R815
Q754
MP1620-OPY-MK
FR -VE
1.5k
R864
C761
220p
C820
0.01
2.2k
R856
C879
0.022
2.2k
R756
68k
R804
Q854
MP1620-OPY-MK
C -VE
C861
220p
68k
R816
Q851
2SA1175-HFE
R879
10
2.2k
R806
R829
10
C779
0.022
82k
R757
R862
6.2k
15k
R865
68k
R866
47k
R880
R812
6.2k
15k
R765
R763
0.22
C770
0.01
82k
R807
Q853
MN2488-OPY-MK
C +VE
C829
0.022
C811
220p
1k
R851
1k
R801
C852
100p
68k
R852
68k
R802
R760
100
R859
100
R809
100
R810
100
R860
100
R759
100
R762
6.2k
D536
MAZ8056GMLS0
22k
R548
22k
R549
100k
R772
100k
R822
100k
R872
68k
R854
2.2k
R853
47k
R820
47k
R870
0
R544
Q752
Q852
2SD2144S-V
Q802
2SD2144S-V
2SD2144S-V
1k
R560
C553
100p
68k
R554
68k
R565
2.2k
R563
82k
R555
2.2k
R556
Q551
BIAS
BIAS
BIAS
BIAS
BIAS
Q751
2SA1175-HFE
BIAS
BIAS
2SD2144S-V
BIAS
R553
100
R567
100
Q552
Q554
MP1620-OPY-MK
SBR -VE
Q553
MN2488-OPY-MK
SBR +VE
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
1
2
3
B
C
E
1
2
3
B
C
E
1
2
3
B
C
E
R513
0.22
4.7k
R552
C554
0.01
L550
1.7uH
1.5k
R562
C550
0.022
C551
220p
R551
10
R558
6.2k
15k
R564
68k
R569
47k
R568
R550
4.7
L828
1.7uH
R828
4.7
L878
1.7uH
R878
4.7
L778
1.7uH
R778
4.7
100k
R559
47k
R557
C853
10p
C803
10p
C560
10p
C855
3p
C805
3p
C559
3p
C857
47 35V
C757
47 35V
C807
47 35V
C558
47 35V
C812
220
10V
C557
220
10V
C860
10
50V
C555
10
50V
560
R758
560
R858
560
R808
560
R566
C802
100p
C862
[SBL]
[SBR]
220
10V
C810
10
50V
2.2k
R803
6.8k
R547
47k
R770
C552
47p
C808
47p
C858
47p
C561
47p
C809
47p
C758
47p
C859
47p
C759
47p
Q862
2SA1514KT146S
Q811
2SA1514KT146S
Q762
2SA1514KT146S
Q555
2SA1514KT146S
Q861
2SA1514KT146S
Q812
2SA1514KT146S
Q761
2SA1514KT146S
Q550
CURRENT DETECT
CURRENT DETECT
CURRENT DETECT
CURRENT DETECT
CURRENT DETECT
CURRENT DETECT
CURRENT DETECT
CURRENT DETECT
2SA1514KT146S
IC801
STK350-630TS-E
MUTE
+VOUT1
-VOUT2
COMP1
NF1
IN1
GND
IN2
NF2
COMP2
-VOUT2
+VOUT2
VCC
VCC
VEE
IC501
STK350-630TS-E
MUTE
+VOUT1
-VOUT2
COMP1
NF1
IN1
GND
IN2
NF2
COMP2
-VOUT2
+VOUT2
VCC
VCC
VEE
D550
DA2J10100L
D551
DA2J10100L
D820
DA2J10100L
D81
1
DA2J10100L
D870
DA2J10100L
D861
DA2J10100L
D770
DA2J10100L
D761
DA2J10100L
C545
47 35V
C548
0.1
[FR]
[SBL]
[SBR]
[C]
[C]
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
SBR_OUT
C_OUT
SBL_OUT
PRE DRIVER
IC501
PRE DRIVER
IC801
CL394
CL395
CL396
CL397
1
MAIN BOARD
(2/4)
(Page 20)
3
MAIN BOARD
(2/4)
(Page 20)
4
MAIN BOARD (3/4)
(Page 21)
5
MAIN BOARD (3/4)
(Page 21)
2
MAIN BOARD
(2/4)
(Page 20)
2-16.  SCHEMATIC DIAGRAM – MAIN Board (1/4) –
STR-DH720/DH720HP
STR-DH720/DH720HP
20
20
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
H
HEADPHONE
BOARD
CN790
(Refer to page 45
on original
service manual)
6
MAIN BOARD (3/4)
(Page 21)
7
MAIN BOARD (4/4)
(Page 22)
3
MAIN
BOARD
(1/4)
(Page 19)
2
MAIN
BOARD
(1/4)
(Page 19)
1
MAIN
BOARD
(1/4)
(Page 19)
C403
10p
C404
10p
2-17.  SCHEMATIC DIAGRAM – MAIN Board (2/4) –
Page of 127
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