Sony HT-7200DH / STR-K7200 Service Manual ▷ View online
STR-K7200
STR-K7200
21
21
E
20
21
41
60
40
61
80
1
E
E
E
D940
R401
D941
R402
D942
R403
D943
R404
R405
R408
R409
R600
Q661
Q662
R602
R605
D375
D761
Q861
R801
Q862
R802
R803
Q670
R804
R805
R806
R807
R808
D770
Q870
D775
R811
R814
R815
R816
R430
R431
R820
R821
R822
R823
R824
R824
C400
C403
C405
R830
R449
R450
R451
R452
R453
R454
R455
C802
R458
C804
R459
R651 R652
R653
R654
R656
R657
R658
C811
R466
R467
R851
R852
R853
C430
R854
C431
R661
R856
R857
R470
R664
R858
R665
R666
C820
R861
R670
R864
R671
R865
R672
R866
R673
R674
R675
R676
C449
R870
R871
R872
R873
C450
R680
R874
Q301
R880
C652
C654
Q501
C852
C854
C661
JR406
Q320
JR605
C861
Q321
JR606
JR607
C670
Q325
C675
Q711
Q712
C870
D811
C489
Q720
D820
C499
JR434
JR435
Q350
Q355
Q360
R301
R304
R501
R502
R503
R504
R505
R506
R507
D661
Q375
Q761
R701
Q762
R702
R703
R704
R705
R706
R707
R320
R708
D861
D670
R325
R326
R327
Q770
R328
D675
R711
R714
R715
R716
D870
R335
R336
R337
R720
R721
R722
R723
R724
R725
R726
CL001
CL003
R730
C500
R350
R353
R930
R931
R355
C702
R358
C704
R360
C900
R363
C711
R751
R752
R753
R754
R756
R757
R758
C720
R375
R378
R761
C725
R764
R765
R766
R770
R771R772
R773
R774
C350
R775
R776
C352
C933
R780
D301
C940
C941
C752
C754
D500
D501
E
E
C761
D320
JR702
D325
D326
D327
C770
JR320
JR321
D711
JR322
C775
Q811
C3022
Q812
C3025
C3026
C3027
D335
D720
Q820
D725
C3032
C3037
R3010
R3011
R3012
R3013
5
8
1
4
JR340
D350
D352
R3020
D930
R3021
D355
D931
R3022
R3023
D360
5
8
1
4
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
B
2
1
5
1
6
E
B
2
14
1
15
2
14
1
15
1
13
1
15
E
B
14
3
1
7
3
E
B
15
3
2
14
1
15
1
3
E
B
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
B
E
C
3
2
1
3
3
1
1
3
1
3
1
7
1
1
6
3
E
B
E
B
E
B
E
B
E
B
E
B
E
B
Q654
JW758
TB601
CNP912
JW760
Q851
JW761
Q852
JW762
Q853
Q854
HS350
IC350
IC352
JW766
JW767
JW768
JW769
CNP921
JW770
JW771
JW772
JW773
JW776
JW777
R809
JW779
CNP930
R810
JW781
R812
JW782
R813
JW783
JS710
JS711
JW785
JS712
JW789
CNP940
L678
JW790
JS335
JW791
JS336
JS337
JS338
JW794
JS339
JW795
R828
JW798
R829
JW799
L878
C408
C409
JS920
JS922
JWH1
JWH2
JWH3
CN434
JWH4
JWH5
JWH7
JWH9
C801
C803
JS930
C805
C806
C807
C808
C809
R659
R660
R662
R663
JS3001
R859
JS3002
C821
R860
R862
R863
C829
R678
R679
R487
JS578
R488
JS388
C644
JS389
R878
R879
JS3022
JS778
C458
C459
JS392
JS393
JS394
C844
C651
C653
JW600
C655
JW601
C656
JW602
C657
JW603
C658
JW604
Q500
C659
JW605
JW606
JW607
JW608
C851
JW609
JS3037
C853
JW800
C855
JW801
C856
JW802
C857
JW803
C858
JW610
JW804
C471
C859
Q701
JW611
Q702
JW612
Q703
JW613
JW807
Q704
JW614
JW615
JW616
JW617
JW618
JW619
C671
JW813
JW620
JW814
JW621
JW815
JW622
JW816
JW623
JW817
C679
JW819
JW626
C487
JW627
C488
C871
JW629
IC600
TB604
TB607
JW630
C879
JW631
JW825
JW632
JW826
JW633
JW827
JW634
JW635
JW829
JW636
JW637
IC800
JW638
JW639
JW830
JW831
JW832
JW833
JW640
JW834
JW641
JW835
JW642
JW836
JW643
JW837
JW644
CNP410
JW838
JW645
CNP411
JW839
JW646
JW647
JW648
L728
Q930
JW840
JW841
JW842
JW843
JW650
JW651
JW845
JW652
JW846
JW653
JW655
JW656
JW657
JW658
JW659
R302
R303
JW852
JW660
Q751
JW661
JW855
Q752
Q753
CNP430
Q754
JW664
JW859
JW665
JW667
JS400
JS401
JS402
JW860
JW861
JW862
JW863
JS408
JW864
JW670
JS409
JW671
JW866
JW672
JW867
JW868
R510
R511
JW675
JW676
JW677
JS410
JS411
R709
JW679
JWH10
JW870
JWH11
JW871
JWH12
JW872
R710
CN500
JW681
R712
R713
JW684
JS611
JW685
JW686
JW687
JW688
JW689
JS810
JW690
JW691
JW692
JW693
JW694
JW695
JW696
R728
R729
JW699
JS432
JS628
L778
R545
R351
R546
R352
C701
R356
R932
C703
R357
C705
C706
C707
C320
C708
C709
R361
C325
R362
C904
R940
JS458
JS459
CN350
JS460
JS461
R759
C335
C721
R376
R377
R760
R762
R763
C729
RY301
JS470
C920
CN94
1
JS471
C921
JS472
C922
JS473
C923
C351
C545
C546
C353
R778
C930
R779
C931
R392
C932
R393
C744
C751
C753
JW700
C755
C756
C757
C758
JW704
C759
JW705
JW706
JW707
JW708
JW321
JW709
JW322
JW323
JW324
JW325
JW326
JW327
JW328
JW710
JW329
Q801
Q802
JW712
Q803
JW713
Q804
JW714
JW715
JW716
JW717
JW330
JW718
JW331
JW332
C771
CN792
JW720
JW721
C3024
RY350
C779
RY355
IC700
W001
ET902
W002
JW731
RY360
C3034
CNP500
JW737
JW738
D921
JW739
JW740
JW741
JW743
JW745
JW746
JW747
JW748
RY375
JW749
L828
JW750
JW751
JW752
JW753
JW754
Q651
JW755
Q652
JW756
Q653
J401
J403
J404
J405
IC3002
IC565
IC400
MAIN BOARD
1-875-588-
D
XM BOARD
CN102
H
DCAC
BOARD
CN2000
CN2000
C
VIDEO 2
BOARD
CNP201
B
A
DIGITAL
AB
BOARD
CNS502
DIGITAL
AB
BOARD
CNS501
J
MAIN POWER
TRANSFORMER
T901
MAIN POWER
TRANSFORMER
T901
L
DIGITAL
AB
BOARD
CNP505
K
STANDBY BOARD
CN912
E
HEADPHONE
BOARD
CNP790
M
DISPLAY
BOARD
CN108
N
G
VIDEO
BOARD
CNP203
F
DIGITAL
AB BOARD
CNP504
L
R
TV
IN
L
R
SA-CD/CD/
CD-R
IN
L
R
SA-CD/CD/
CD-R
OUT
L
R
SAT
AUDIO IN
L
R
DVD
AUDIO IN
L
R
VIDEO 1
AUDIO OUT
L
R
VIDEO 1
AUDIO IN
SUB WOOFER
AUDIO OUT
CENTER
SURROUND
R
L
FRONT
SPEAKERS
L
R
RY350, 355
RY360, 375
RY360, 375
-1 -2
RY301
12
(12)
(CHASSIS)
(CHASSIS)
(CHASSIS)
(CHASSIS)
(CHASSIS)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
7
8
9
10
11
12
13
14
6-6. PRINTED WIRING BOARD - MAIN Board -
•
: Uses unleaded solder.
• See page 20 for Circuit Boards Location.
Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location
Ref. No. Location
• Semiconductor Location
Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location
D301
B-7
D320
F-8
D325
F-8
D326
E-8
D327
E-8
D335
E-2
D350
C-11
D352
C-6
D355
B-9
D360
C-8
D375
F-13
D500
D-9
D501
D-9
D661
F-4
D670
F-4
D675
F-4
D711
F-9
D720
F-9
D725
F-9
D761
F-6
D770
F-6
D775
F-6
D811
F-12
D820
F-13
D861
F-11
D870
F-11
D921
C-12
D930
C-14
D931
D-13
D940
D-14
D941
D-14
D942
D-13
D943
D-14
IC350
C-6
IC352
C-6
IC400
C-3
IC565
D-9
IC600
E-4
IC700
D-6
IC800
D-7
IC3002 B-2
Q301
B-7
Q320
E-8
Q321
F-7
Q325
E-8
Q350
C-11
Q355
B-9
Q360
C-8
Q375
F-13
Q500
E-9
Q501
D-9
Q651
G-4
Q652
G-4
Q653
G-4
Q654
G-5
Q661
F-5
Q662
F-4
Q670
F-4
Q701
G-9
Q702
G-9
Q703
G-9
Q704
G-10
Q711
F-10
Q712
F-9
Q720
F-9
Q751
G-6
Q752
G-6
Q753
G-5
Q754
G-6
Q761
F-6
Q762
F-6
Q770
F-6
Q801
G-13
Q802
G-13
Q803
G-12
Q804
G-13
Q811
G-13
Q812
G-13
Q820
F-12
Q851
G-11
Q852
G-11
Q853
G-11
Q854
G-11
Q861
F-11
Q862
F-11
Q870
F-10
Q930
D-13
(Page 32)
(Page 34)
(Page 40)
(Page 31)
(Page 31)
(Page 31) (Page 40)
(Page 46)
(Page 46)
(Page 42)
(Page
31)
(Page
46)
(Page 34)
STR-K7200
STR-K7200
22
22
• See page 48 for IC Block Diagrams.
6-7. SCHEMATIC DIAGRAM - MAIN Board (1/3) -
BOARD
MAIN
(2/3)
1
BOARD
MAIN
(2/3)
4
2
BOARD
(3/3)
MAIN
3
(3/3)
BOARD
MAIN
IC B/D
IC B/D
IC B/D
2.
8
1.
1
-1.1
-43.
2
0.
1
0.
1
0.
1
0.
1
-43.
2
-1.1
1.
1
44.
8
-44.
8
1.
1
0.
1
1.
1
0.
1
-43.
2
0.
1
2.
8
0.
1
44.
8
-44.
8
-43.
2
-1.1
-1.1
1.
1
0
0
0.
1
-43.
1
0.
1
2.
8
0
44.
8
-44.
8
-44.
8
0
-1.1
0
0
0
0
-0. 6
-1. 1
0.5
1.1
-1. 1
0.5
1.1
-0. 6
-1. 1
-1. 1
0.5
1.1
-0. 6
-1.1
-1. 1
1.1
0.5
-1. 1
-1. 1
-0. 6
1.1
0.5
-1.1
-1. 1
-0.6
-44.
8
0
-1.
1
44.
8
0
1.
1
-44.
8
-1.1
0
1.
1
0
44.
8
-44.
8
-1.
1
0
1.
1
0
44.
8
-44.
8
-1.1
0
1.
1
0
44.
8
-44.
8
-1.
1
0
1.
1
0
44.
8
0
-43. 8
-43. 8
0
0
-43. 8
0
0
-43. 8
0
0
-43. 8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4.1
4.1
0
4.1
0
4.1
0
4.1
0
560
R658
15k
R672
500V
C658
47p
1
2
3
MN2488-OPY-MK
Q653
B
C
E
6.2k
R662
47k
R680
2.2k
R656
100k
R676
2SA1163L-TE85L
Q662
1.5k
R664
2SA1115TP-EF
Q651
50V
10
C671
0.022
C679
82k
R657
4.7k
R661
2SA1163L-TE85L
Q661
68k
R666
2SC3052EF-T1-LEF
Q670
25V
47
C657
10
R679
1
2
3
MP1620-OPY-MK
Q654
B
C
E
L678
15k
R665
0.22
R663
0.01
C670
220p
C661
2SC3623ATP-LK
Q652
500V
47p
C659
4.7
R678
2SA1163L-TE85L
Q711
560
R808
0.22
R813
1
2
3
MN2488-OPY-MK
Q803
B
C
E
47k
R830
0.22
R863
500V
C758
47p
2SA1163L-TE85L
Q862
2SA1115TP-EF
Q701
1
2
3
MN2488-OPY-MK
Q753
B
C
E
25V
47
C807
4.7k
R811
47k
R780
82k
R857
2SA1115TP-EF
Q801
100k
R776
68k
R854
2SA1163L-TE85L
Q762
1.5k
R764
2SC3623ATP-LK
Q702
4.7k
R861
1.5k
R714
100p
C804
500V
C708
47p
0.01
C870
560
R708
50V
10
C771
1
2
3
MP1620-OPY-MK
Q804
B
C
E
220p
C711
4.7k
R761
500V
3p
C805
25V
47
C857
68k
R766
2SC3052EF-T1-LEF
Q770
68k
R704
1.5k
R814
R805
22k
25V
47
C757
1
2
3
MN2488-OPY-MK
Q703
B
C
E
10
R779
10
R729
L878
15k
R815
500V
3p
C855
1
2
3
MP1620-OPY-MK
Q754
B
C
E
15k
R822
2SA1163L-TE85L
Q712
2.2k
R706
500V
C858
47p
2SC3052EF-T1-LEF
Q720
0.01
C720
1.5k
R864
R705
22k
100p
C704
220p
C761
2SC3623ATP-LK
Q752
100p
C754
4.7
R778
560
R758
500V
47p
C709
0.01
C820
15k
R772
2SA1163L-TE85L
Q811
2SC3623ATP-LK
Q802
68k
R754
100p
C854
2.2k
R856
0.022
C879
500V
47p
C809
2SA1163L-TE85L
Q812
2.2k
R756
68k
R804
50V
10
C721
L828
1
2
3
MP1620-OPY-MK
Q854
B
C
E
220p
C861
500V
3p
C705
25V
47
C707
68k
R816
2SA1115TP-EF
Q851
2SA1115TP-EF
Q751
50V
10
C821
10
R879
82k
R707
L728
2.2k
R806
15k
R722
4.7k
R711
10
R829
500V
C808
47p
0.022
C779
2SA1163L-TE85L
Q861
82k
R757
560
R858
4.7
R728
0.022
C729
2SA1163L-TE85L
Q761
1
2
3
MP1620-OPY-MK
Q704
B
C
E
6.2k
R862
500V
47p
C859
15k
R865
2SC3052EF-T1-LEF
Q870
15k
R872
68k
R866
47k
R880
15k
R715
L778
4.7
R878
6.2k
R812
15k
R765
2SC3623ATP-LK
Q852
0.22
R763
0.01
C770
0.22
R713
0.01
C775
6.2k
R712
82k
R807
500V
3p
C755
50V
10
C871
1
2
3
MN2488-OPY-MK
Q853
B
C
E
0.022
C829
68k
R716
4.7
R828
220p
C811
500V
47p
C759
2SC3052EF-T1-LEF
Q820
1
15
14
13
12
11
10
uPC2581V-S
IC700
1
15
14
13
12
11
10
uPC2581V- S
IC800
100V
10
C546
1
R546
1
R545
100V
10
C545
500V
3p
C655
100p
C654
50V
C651
10
R605
22k
1k
R651
100p
C652
68k
R654
68k
R652
1k
R751
1k
R701
50V
C751
10
100p
C752
100p
C702
50V
C701
10
68k
R752
68k
R702
1k
R851
1k
R801
50V
C851
10
100p
C852
100p
C802
50V
C801
10
68k
R852
68k
R802
R730
47k
MA2J1
110GLS0
D661
MA2J1
110GLS0
D675
MA2J1
110GLS0
D870
MA2J1
110GLS0
D820
MA2J1
110GLS0
D861
MA2J1110GLS0
D670
MA2J1
110GLS0
D81
1
MA2J1
110GLS0
D761
MA2J1110GLS0
D770
MA2J1
110GLS0
D720
MA2J1
110GLS0
D775
MA2J1
110GLS0
D71
1
MA2J1
110GLS0
D725
100k
R726
0.01
C725
0
JR605
0
JR606
22k
R720
22k
R670
22k
R870
22k
R770
22k
R820
50V
C644
10
50V
C844
10
50V
C744
10
JR607
0
JS628
3.3k
R771
3.3k
R821
3.3k
R871
22k
R824
22k
R674
22k
R724
22k
R874
22k
R774
22k
R773
22k
R873
22k
R723
22k
R673
22k
R823
100
R760
100
R859
100
R709
100
R809
100
R810
100
R860
100
R710
100
R660
100
R659
100
R759
2.2k
R853
2.2k
R703
2.2k
R803
2.2k
R753
2.2k
R653
JS712
JS710
JS61
1
JS810
JS711
6.2k
R762
JS337
JS339
JS338
0
R600
0
R602
500V
33p
C853
500V
33p
C803
500V
33p
C653
500V
33p
C703
500V
33p
C753
10V
C706
220
10V
C756
220
10V
C856
220
10V
C656
220
10V
C806
220
JR340
0
JS578
3.3k
R671
3.3k
R721
10k
R675
10k
R725
10k
R775
0.01
C675
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
uPC2581V-S
IC600
MUTE
+VOUT1
-VOUT1
COMP1
NF1
IN1
GND
IN2
NF2
COMP2
-VOUT2
+VOUT2
VCC
VCC
VEE
MUTE
+VOUT1
-VOUT1
COMP1
NF1
IN1
GND
IN2
NF2
COMP2
-VOUT2
+VOUT2
VCC
VCC
VEE
MUTE
+VOUT1
-VOUT1
COMP1
NF1
IN1
GND
IN2
NF2
COMP2
-VOUT2
+VOUT2
VCC
VCC
VEE
9
8
7
6
5
4
3
2
9
8
7
6
5
4
3
2
13
15
17
18
19
20
21
22
23
24
2
1
3
11
12
4
6
9
10
25
26
27
(1/3)
MAIN BOARD
POWER AMP
IC800
POWER AMP
IC700
POWER AMP
IC600
BOOSTER
BOOSTER
BOOSTER
BOOSTER
BOOSTER
BOOSTER
BOOSTER
BOOSTER
BOOSTER
BOOSTER
Q651, 652
LIMITER
Q751, 752
LIMITER
Q701, 702
LIMITER
Q851, 852
LIMITER
Q801, 802
LIMITER
Q811, 812
CURRENT
DETECT
AF POWER
PROTECT
DETECT
CURRENT
Q861, 862
DETECT
CURRENT
Q711, 712
DETECT
CURRENT
Q761, 762
DETECT
CURRENT
Q661, 662
PROTECT
AF POWER
PROTECT
AF POWER
PROTECT
AF POWER
PROTECT
AF POWER
D
B
16
10
11
F
5
15
L
K
3
G
1
12
C
E
H
8
9
6
7
J
4
13
A
14
2
I
(Page
23)
(Page 24)
(Page 24)
(Page 23)
STR-K7200
STR-K7200
23
23
• See page 48 for IC Block Diagrams.
6-8. SCHEMATIC DIAGRAM - MAIN Board (2/3) -
XM
D
BOARD
CN102
(2/5)
DIGITAL
AB BOARD
CNS502
A
C
VIDEO 2
CNP201
BOARD
(1/3)
BOARD
MAIN
4
MAIN
BOARD
(3/3)
5
BOARD
MAIN
6
(3/3)
BOARD
MAIN
7
(3/3)
BOARD
(3/3)
8
MAIN
MAIN
BOARD
(1/3)
1
B
CNS501
(2/5)
AB BOARD
DIGITAL
IC B/D
7
0
0
0
0
0
0
-6.
9
0
0
-6. 9
0
0
0
0
0
0
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
R3010
47k
R3011
47k
C3037
1
C3032
1
C3027
1
R3012
47k
R3013
47k
R3021
47k
R3022
47k
50V
C3024 4.
7
50V
C3034
4.7
C3025
0.1
C3022
1
R3020
47k
C3026
0.1
8
7
6
5
1
2
3
4
NJM4565M(TE2)
IC3002
50V
C409
4.7
R451
1k
50V
C459
4.7
R402
1k
R459
1k
R409
1k
R401
1k
R452
1k
J401
6P
R453
1k
R403
1k
R454
1k
R404
1k
C403
2200p
R405
1k
50V
C458
4.7
R455
1k
R408
1k
50V
C408
4.7
R458
1k
C405
2200p
6.8k
R335
0.1
C489
100p
C449
0.1
C499
100p
C450
C430 220p
C431
220p
MAZ8030G0LS0
D335
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
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
BD3471KS2
IC400
GND
HPFN
LPF
01
LPF
02
LPF
N2
LPFN1
SWVO
L
VCC
DGND
DA
TA
CLK
VEE
FRO
UT
FLOUT
SWO
UT
COUT
SROUT
SLOUT
SBROU
T
SBLO
UT
GND
GND
RECL4
RECR4
RECL3
RECR3
RECL2
RECR2
RECL1
RECR1
GND
INL16
INR16
INL1
5
INR15
INL14
INR1
INL1
INR13
GND
INL1
2
INR12
INL1
1
INR1
1
INL1
0
INR10
INL9
INR9
INL8
INR8
INL7
INR7
INL6
INR6
INL5
INR
5
INL4
INR
4
INL3 (DCAC_MIC
)
INR3 (DCAC_MIC)
INL2 (DMPORT_L)
INR2 (DMPORT_R)
INL1 (TUNER_L)
INR1 (TUNER_R)
GND
SBLIN
SBRIN
SLIN
SRIN
CIN
SWIN
LIN
RIN
GND
ROUT
LOUT
GND
ROUT SUB
LOUT SUB
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
13P
CNP410
VOL IC CLK
VOL IC DATA
VACS CTRL
PROTECTOR
+7V
-7V
FR OUT
AGND
FL OUT
SW
AGND
C OUT
SR OUT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
15P
CNP411
AGND
SL OUT
+7V
SBR OUT
SBL OUT
L IN
AGND
R IN
TUNER R
AGND
TUNER L
DMPORT L-
DMPORT R-
DMPORT L+
DMPORT R+
R3023
47k
1
3
4
CNP430
4P
L-CH
2
NC
GND
R-CH
R430
1k
R431
1k
JS335
JS409
JS410
JS411
JS461
JS459
JS460
JS400
1k
R449
1k
R450
JS408
JS458
JS3002
JS3037
JS3022
JS3001
JS336
J403
4P
J404
4P
JS401
1
3
4
5
6
6P
CN434
XMR
XMGND
XML
-7V
+7V
JS432
R487
2.2
R488
2.2
25V
C487
47
25V
C488
47
0
R336
22k
R337
16V
47
C335
28
29
30
31
32
9
6
4
12
11
10
3
1
2
MAIN BOARD (2/3)
BUFFER
IC3002
IC400
ANALOG SOUND PROCESSOR
W001-002
VEE
VCC
(CHASSIS)
(CHASSIS)
(CHASSIS)
L
R
CD-R OUT
SA-CD/CD/
L
R
SA-CD/CD/
CD-R IN
L
R
TV IN
L
R
SAT AUDIO
IN
L
R
DVD AUDI O
IN
L
R
VIDEO 1
AUDIO OUT
L
R
VIDEO 1
AUDIO IN
D
B
10
11
F
5
K
3
G
1
12
C
E
H
8
9
6
7
J
4
13
A
14
2
I
INPUT SELECTOR,
ELECTRICAL VOLUME
(Page 22)
(Page 26)
(Page 26)
(Page 41)
(Page 22)
(Page 24)
(Page 33)
(Page 24)
(Page 24)
(Page 24)
STR-K7200
STR-K7200
24
24
6-9. SCHEMATIC DIAGRAM - MAIN Board (3/3) -
8
TRANSFORMER
T901
MAIN POWER
J
STANDBY
CN912
K
BOARD
CNP505
DIGITAL
(4/5)
L
AB BOARD
DISPLAY
CN108
M
BOARD
BOARD
(2/3)
MAIN
N
MAIN POWER
T901
TRANSFORMER
E
CNP790
BOARD
HEADPHONE
2
(1/3)
BOARD
MAIN
BOARD
(2/3)
MAIN
5
MAIN
(1/3)
BOARD
3
MAIN
(2/3)
BOARD
6
CNP504
F
(4/5)
AB BOARD
DIGITAL
BOARD
G
VIDEO
CNP203
CNP203
CN2000
BOARD
DCAC
H
BOARD
(2/3)
7
MAIN
16
7
-16. 8
-6.9
-19. 8
-20. 4
-44. 8
0.8
0.2
0.2
0.8
0.2
0.8
6.4
-43. 8
-5.5
6.4
3.3
0
0
16
-44. 8
-44. 8
3.2
0
-44. 3
-44. 8
-44. 8
0.1
0.7
-5.
5
-5.
7
5
-3.6
-5.
5
1.
2
-6.
9
C400
2200p
R466
1k
R470
47k
RY301
2SC3052EF-T1-LEF
Q301
50V
C471
4.7
R467
100k
100V
0.22
C920
100V
0.22
C921
39k
R326
50V
10
C325
10k
R327
6.8k
R325
2SC3052EF-T1-LEF
Q325
2SA1163L-TE85L
Q320
2SC3052EF-T1-LEF
Q321
1k
R328
10k
R503
220k
R507
2SC1815GR-TPE2
Q500
10k
R504
8
7
6
5
4
3
2
1
NJM4565M(TE2)
IC565
470k
R502
10k
R505
0.1
C500
2SB734-T-34
Q930
100V
0.1
C933
35V
47
C931
4.7
R932
22k
R930
PTZ-TE25-5.6B
D930
10k
R931
35V
47
C932
1SR154-400TE-25
D352
0.47
C350
0.47
C352
1SR154-400TE-25
D943
0.47
C940
16V
3300
C904
0.47
C941
1SR154-400TE-25
D941
1SR154-400TE-25
D940
1SR154-400TE-25
D942
E
ET902
1
3
4
4P
CN500
+15V
GND
2
NC
-15V
2.2k
R375
2SC3052EF-T1-LEF
Q375
RY375
1
3
4
5
5P
CN792
HP_DETECT
2
NC
R-CH
GND
L-CH
2SC3052EF-T1-LEF
Q360
RY360
12V
2SC3052EF-T1-LEF
Q355
RY355
12V
RY350
12V
2SC3052EF-T1-LEF
Q350
2.2k
R350
RT1P241C-TP- 1
Q501
1k
R355
1k
R360
R301
2.2k
MA2J1110GLS0
D360
MA2J1110GLS0
D326
MA2J1110GLS0
D501
MA2J1110GLS0
D350
MA2J1110GLS0
D325
MA2J1110GLS0
D355
MA2J1110GLS0
D375
MA2J1110GLS0
D320
MA2J1110GLS0
D327
MA2J1110GLS0
D301
JS922
JS920
1
2
3
4
5
6
6P
CNP940
F1
NC
GND
F2
R4 -AC
R4 +AC
1
3
5
5P
CNP921
R1 (UPPER TAP)
2
NC
4
NC
R1 GND
R1 (UPPER TAP)
1
2
3
3P
CNP500
+7V
GND
-7V
MAZ8200GMLS0
D931
47
R362
33
R361
47
R357
33
R356
47
R352
33
R351
47
R377
33
R376
R302
100
R303
100
D5SBA20-4003
D921
~
~
C923
6800
71V
C922
6800
71V
0
JR320
2W
680
R393
2W
R392
680
1
3
4
5
6
7
7P
CN350
HP_DETECT
HP RY
2
NC
C/SUR/SB_RY
FRONT B RY (NC)
SW PREOUT RY
FRONT A RY
2W
R510
330
MAZ8220GMLS0
D500
22k
R501
33k
R506
JS470
JS471
JS472
JS473
JS393
JS394
JS392
JR406
0
2W
100
R511
G
TA7807S
IC350
1
2
3
I
I
O
O
G
TA79007SB
IC352
1
2
3
47k
R358
47k
R363
47k
R353
47k
R304
47k
R378
1
2
3
3P
CNP930
-20V
F1
F2
JS388
JS389
J405
1
2
3
4
5
6
7
7P
CNP912
R2 RETURN GND
NC
-15V
STBY GND
R2 GND IN
+15V
+15V (NC)
1
2
3
3P
CN941
GND (R4)
+7V (R4)
GND (R4) (NC)
JS930
35V
47
C930
10V
220
C320
100k
R320
C900
0.1
1/2W
0.15
R940
16V
100
C353
16V
100
C351
21
23
24
18
13
22
15
20
19
17
25
26
27
28
29
30
31
32
MAIN BOARD (3/3)
PROTECT DETECT
IC565
+7V REGULATOR
IC350
-7V REGULATOR
IC352
(CHASSIS)
AUDIO OUT
SUB WOOFER
B- SWITCH
B- SWITCH
LIMITER
PROTECT SWITCH
PROTECT SWITCH
RELAY DRIVE
VCC
VEE
RELA
Y
DRIVE
RELA
Y
DRIVE
RELA
Y
DRIVE
-2
-1
-2
-1
-2
-1
-1
-2
(CHASSIS)
-20V REGULATOR
W001-002
+
+
-
-
R
L
L
R
CENTER
+
-
TB607
SURROUND
TB604
+
-
R
FRONT
-
L
+
R
L
TB601
SPEAKERS
RELAY DRIVE
D
B
16
10
11
F
5
15
3
G
1
12
C
E
H
8
9
6
7
J
4
13
A
14
2
I
(Page 35)
(Page 22)
(Page 23)
(Page 22)
(Page 23)
(Page 28)
(Page
41)
(Page 35)
(Page 23)
(Page 47)
(Page 47)
(Page 28)
(Page 43)
(Page 23)
(Page 47)
Click on the first or last page to see other HT-7200DH / STR-K7200 service manuals if exist.