Sony HT-DDW790 / HT-DDW795 / STR-K790 Service Manual ▷ View online
25
25
STR-K790
STR-K790
4-12. PRINTED WIRING BOARD – MAIN BOARD –
:Uses unleaded solder.
• See page 13 for Circuit Boards Location.
IC850
IC601
IC501
IC502
IC701
IC400
IC822
IC821
POWER
TRANSFORMER
T901
(Page 26)
O
POWER
TRANSFORMER
T901
(Page 26)
M
N
STANDBY
BOARD
CNP906
(Page 26)
I
HEADPHONE
BOARD
CNP790
(Page 33)
DISPLAY
BOARD
CN104
(Page 31)
J
DIGITAL
BOARD
CNP506
(Page 17)
D
G
DIGITAL
BOARD
CNS502
(Page 17)
F
DIGITAL
BOARD
CNS501
(Page 17)
E
DCAC
BOARD
CN2001
(4pin-6pin)
(Page 33)
DCAC
BOARD
CN2001
(7pin-9pin)
(Page 33)
B
15
1
1
11
1
4
8
5
1
4
8
5
MAIN BOARD
AEP,UK
AEP,UK
AEP,UK
AEP,UK
AEP,UK
AEP,UK
AEP,UK
L
FRONT
SPEAKERS
IMPEDANCE USE 6-16
CENTER
R
L
SURROUND
SPEAKERS
IMPEDANCE USE 6-16
SUB
WOOFER
WOOFER
R
AUDIO IN
AUDIO IN
AUDIO IN
SAT
TV
SA-CD/CD
Z2
JW819
JW780
JW781
JW496
JW520
JW
602
JW440
JW436
JW309
JW498
JW301
Q703
Q704
Q753
Q503
Q504
Q603
Q604
Q553
Q554
Q653
Q654
JWH01
JW
H02
JW
711
JW715
JW558
JW559
JW584
JW716
JW717
JW570
JW445
JW
817
JW704
JW818
JW
H08
JW
H06
JWH05
JW438
JW816
JW569
R858
JW
H09
JW505
JW412
JW317
JW500
JW507
JWB01
Q754
JW550
JW650
JW318
JW422
JW441
JW752
JW754
JW751
JW712
JW757
JW600
JW535
JW537
JW815
TP1
TP2
R595
R757
R754
R593
R752
R772
R765
C752
R758
R591
R760
R594
R763
C753
Q751
R597
D448
R751
D449
R449
R753
Q755
JW700
JW480
Q756
Q752
JWB02
R596
JW451
JW808
JW753
R766
JW809
JW755
JWH10
JWH18
JWH11
JW455
JW
722
JW620
JW504
R761
R762
C763
R759
R755
R756
R764
R771
D751
JW706
JW490
JW840
JW636
JW630
JW452
R770
JW707
JW628
JW492
JW469
JW637
JW703
JW705
JW320
JW701
JW468
JW471
JW581
JW610
JW525
JW612
JW456
JW453
JW611
JW
613
JW605
JW608
JW616
JW617
JW618
JW619
JW621
JW622
Q852
Q502
R844
C816
R517
R740
R703
Q657
D882
Q507
R549
R659
R401
R857
R616
R856
C403
R563
R560
R666
R453
C702
D702
C713
C563
R564
CC02
CC04
R793
R565
R668
R791
CC54
D529
R531
C564
R711
Q557
R452
R500
R550
C801
C803
R653
CC01
R403
R700
D806
C802
C662
D804
CC03
CC53
C666
R852
D552
R402
R451
R558
R663
R882
R562
R568
C815
R611
R471
R557
D549
R555
D811
R621
Q851
C664
Q705
D881
D884
D883
R729
R667
C663
D501
R569
R556
R715
R708
C653
R503
R661
Q602
R660
R664
Q555
RR15
C716
R522
Q552
R655
D651
R707
R567
C482
C811
C813
R532
R658
Q707
Q655
R554
Q702
R454
R704
R665
Q652
R622
Q471
R600
R706
R705
Q501
R609
CC16
R672
R472
R610
C613
D601
R613
R854
R612
CNP902
R406
Q656
D821
Q505
R607
R572
R710
C614
D851
R606
R669
R566
Q607
R615
R617
Q882
R884
R885
R605
Q601
R604
C703
R840
R571
R510
C514
R507
R804
Q651
R506
R709
D551
R519
R561
R513
C484
R670
C603
R521
CC51
R614
Q801
R722
R509
R473
C529
R652
R855
C503
R671
Q706
C814
R529
Q605
Q551
R608
R719
R713
R720
R520
Q883
R505
CC52
Q881
R883
D502
R851
D791
R662
C404
D801
C812
R559
R721
R718
C566
R714
CC15
R657
R514
Q509
RR16
R656
R701
R702
Q556
Q701
D701
R806
C472
D602
R717
R803
R508
RY502
R712
R716
C516
C714
R843
C552
R515
R502
C502
R552
R501
R553
R504
C553
R551
R602
R601
C652
R603
R654
C602
Q506
D729
R651
D802
Q606
RR14
R570
R910
C657
C651
C601
C557
C607
C551
C501
C507
C824
C823
C424
C422
C432
C431
C421
C423
C425
C433
C434
C426
C446
C436
C435
C471
C751
C700
C757
C707
C701
C842
C715
C708
C758
C508
C515
C500
C600
C608
C558
C615
C658
C808
C807
C806
C766
C616
C661
C562
C561
C612
C611
C512
C511
C762
C761
C712
C711
C704
C706
C756
C754
C504
C554
C604
C654
C656
C606
C590
C592
C594
C593
C452
C402
R416
JW750
JW409
JW807
JW806
JW804
JW601
CNP501
JW439
JW437
JW
H0
7
D841
C729
C506
C556
C549
C565
C882
R881
C665
JW607
R815
TM602
JWH16
R404
RY551
R574
Q608
D703
R724
R725
RY701
CC14
RY601
D603
JWH12
JW527
RR11
RR12
CC12
CC13
JW528
D553
JWH04
JW606
R625
C881
D805
D807
JW350
JW803
CNP502
R407
R479
JW813
RR13
CN701
CNP907
Q708
JW529
R624
JW501
JW530
JW760
JW460
R853
C851
JW821
JW822
JW823
JW
824
JW825
JW826
JW827
JW828
JW829
JW831
JW832
JW833
JW834
JW835
JW836
JW837
JW838
JW839
JW841
JW842
JW843
JW844
JW845
JW852
JW853
JW855
CNP908
CNP732
JW435
JW854
JW425
JW814
JW
846
JW847
JW848
JW820
JW856
CNP504
JW913
C821
C822
R539
R516
JW735
R816
R518
R620
R618
R619
JW615
JW
582
JW578
D652
JW
720
JW540
JWH20
JWH21
JWH22
JW926
JW927
CC11
R512
C513
R511
JW830
CNP916
CNP733
JWH19
JWH17
JW950
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
1
1
1
7
5
4
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
1
3
1
3
3
1
1
2
1
2
1
2
14
15
14
15
14
15
1
14
15
28 29
42
43
56
J400
TM604
1
2
A
B
C
D
E
F
G
H
3
4
5
6
7
8
9
10
11
12
13
14
15
16
• Semiconductor Location
Ref. No.
Location
D448
F-5
D449
F-5
D501
G-8
D502
G-6
D529
F-6
D549
F-8
D551
G-12
D552
G-10
D553
D-10
D601
G-10
D602
G-10
D603
D-8
D651
G-14
D652
F-12
D701
G-3
D702
G-2
Ref. No.
Location
D703
C-7
D729
F-3
D751
G-6
D791
F-13
D801
E-14
D802
F-14
D804
D-15
D805
D-15
D806
D-15
D807
D-15
D811
D-14
D821
D-6
D841
F-3
D851
E-10
D881
F-12
D882
E-12
Ref. No.
Location
D883
F-12
D884
F-12
IC400
D-4
IC501
E-6
IC502
E-5
IC601
E-8
IC701
F-4
IC821
C-6
IC822
D-6
IC850
E-9
Q471
E-3
Q501
G-6
Q502
H-8
Q503
H-7
Ref. No.
Location
Q504
H-8
Q505
G-8
Q506
G-8
Q507
G-7
Q509
E-13
Q551
G-11
Q552
H-11
Q553
H-11
Q554
H-11
Q555
G-12
Q556
G-12
Q557
G-11
Q601
G-9
Q602
H-9
Q603
H-9
Q604
H-10
Ref. No.
Location
Q605
G-10
Q606
G-9
Q607
G-9
Q608
D-10
Q651
G-13
Q652
H-13
Q653
H-12
Q654
H-13
Q655
G-14
Q656
G-13
Q657
G-12
Q701
G-3
Q702
H-4
Q703
H-4
Q704
H-4
Q705
G-5
Ref. No.
Location
Q706
G-4
Q707
G-3
Q708
C-6
Q751
G-5
Q752
H-6
Q753
H-5
Q754
H-6
Q755
G-6
Q756
G-5
Q801
F-14
Q851
F-11
Q852
E-9
Q881
E-12
Q882
F-12
Q883
F-12
Ver. 1.1
26
26
STR-K790
STR-K790
4-13. PRINTED WIRING BOARD – STANDBY BOARD –
:Uses unleaded solder.
• See page 13 for Circuit Boards Location.
• Semiconductor
Location
Ref. No.
Location
D901
D-3
D910
E-2
D911
E-2
D912
E-2
D913
E-2
D914
E-2
D915
E-2
D920
B-4
D921
C-4
D922
B-4
D923
B-4
Q901
D-3
Q911
D-3
1-872-417-
STANDBY BOARD
T902
US,CND
JW901
POWER
TRANSFORMER
(SUB)
JW909
B901
C800
G901
R900
FH952
CNP904
C902
CNP903
C901
D922
R913
R912
Q911
R812
R903
Q901
E
E
1
1
7
3
1
7
R810
D923
D921
D920
C916
C915
C914
C911
R911
D913
D912
D915
D911
D910
RY901
R904
D914
FH902
F901
C912
D901
C913
CNP801
JW910
JW907
JW906
R905
JW912
JW911
JW920
JW921
CNP906
CNP900
T901
POWER
TRANSFORMER
MAIN
BOARD
CNP902
(Page 25)
O
MAIN
BOARD
CNP907
(Page 25)
M
N
MAIN BOARD
CNP916
(Page 25)
C
DIGITAL
BOARD
CNP505
(Page 17)
AC IN
1
2
A
B
C
D
E
3
4
5
6
7
8
27
27
STR-K790
STR-K790
4-14. SCHEMATIC DIAGRAM – MAIN BOARD (1/4) –
B
DCAC
BOARD
CN2001
(7pin to 9pin)
(Page 34)
F
DIGITAL
BOARD
(3/5)
CNS501
(Page 20)
G
DIGITAL
BOARD
(5/5)
CNS502
(Page 22)
20
MAIN BOARD
(3/4)
(Page 29)
E
DCAC
BOARD
CN2001
(4pin to 6pin)
(Page 34)
(Page 28)
(Page 29)
(Page 30)
0
0
0
0
0
0
0
0
0
0
-7
0.9
0.9
0
0
4.3
7
0
0
0
-7
7
0
0
0
3.5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3.5
7
0
0
0
0
0
0
0
0
0
0
No mark:FM
AUDIO IN
AUDIO IN
AUDIO IN
SAT
TV
SA-CD/CD
IC B/D
CC01
CC51
R401
R451
R402
R452
CC02
CC52
Q471
R472
R473
R471
IC502
C594
R593
R594
R591
R595
R596
C592
R597
C593
WOOFER AMP
C590
0.33
0.33
C452
C402
C421
C431
C432 C422
C424
C434
C433
C423
C425
C435
C436
C472
C404
C403
C482
C484
R
4
0
7
R
4
0
6
C426
R403
R453
CC03
CC53
R404
R454
CC04
CC54
JW301
C446
R416
CNP501
CNP502
CNP733
IC400
C471
TP1
CNP732
J400
J400
1k
1k
2SD2144S
+3.3V REG
-TP-UVW
1k
2.2k
680
10
50V
10
50V
4.7
50V
10
50V
10
50V
4.7
50V
4.7
50V
10
50V
10 50V
4.7
50V
4.7
50V
10
50V
10
50V
0.1
0.001
0.001
0.1
0.1
1
0
0
1
0
0
4.7
50V
4.7
50V
1k
15P
11P
M61542FP
ANALOG SOUND
PROCESSOR
PROCESSOR
100
10V
10V
3P
6P
100P
100P
1k
1k
100P
100P
IC NJM4565D
0.33
62k
22k
2.2k
6.8k
6.8k
0.68
220k
0.033
1k
1k
100P
100P
1k
1k
100P
100P
3P
• See page 36 for IC Block Diagram.
28
28
STR-K790
STR-K790
4-15. SCHEMATIC DIAGRAM – MAIN BOARD (2/4), STANDBY BOARD –
C
DIGITAL
BOARD
(4/5)
CNP505
(Page 21)
I
DISPLAY
BOARD
CN104
(Page 32)
(Page 29)
0
0.3
-37
14
0
0.8
-21.4
7
-14.4
-7
0.6
0
-21.8
AC IN
STANDBY BOARD
C813
C811
C824
IC821
D811
IC822
C822
C823
C806
C808
Q801
R804
R803
D801
D802
C807
D805
D807
D804
D806
C801
C802
R806
C821
Q901
R904
R903
D914
D915
C911
C912
C914
D913
D912
D911
D910
R900
No mark:FM
D901
CNP900
RY901
T902
CNP904
R810
C901
C902
R812
R905
R911
R912
R913
C913
JW901
FH902
F901 *1
FH952
C812
C814
CNP906
CNP916
CNP907
CNP801
D821
CNP902
R910
C803
T901
D920
D923
D922
D921
CNP903
G901
C916
Q911
CNP908
C915
47
25V
TA7807S
D5SBA20-4003
TA79007S
-7V REG
+7V REG
0.47
47
25V
47
35V
47
35V
2SB734-T-34
-20V REG
10k
4.7
HZS22-1LTA
HZ5.6BP-TK
47
35V
10EDB40-TA2B5
10EDB40-TA2B5
10EDB40-TA2B5
10EDB40-TA2B5
0.22
0.22
22k
0.47
2SC1740S-QRT
RELAY DRIVE
4.7k
47k
1SS133T-72
1SS133T-72
0.22
0.22
3300
16V
10EDB40-TA2B5
10EDB40-TA2B5
10EDB40-TA2B5
10EDB40-TA2B5
ISS133T-72
2P
POWER RELAY
2P
0.22
1/2W
0.22
0.22
0.22
1/2W
1/2W
1
47k
33k
10k
0.47
50V
7P
7P
3P
AK04V1
5P
0.33
3300
16V
POWER
TRANSFORMER
3P
1000
25V
2SC1740S-QRT
AC DET
3P
2200
25V
4700
63V
0.22
3.3M
POWER
TRANSFORMER
0.22
4700
63V
3P
(CHASSIS)
(Page 27)
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