Sony HT-DDW790 / HT-DDW795 / STR-K790 Service Manual ▷ View online
29
29
STR-K790
STR-K790
4-16. SCHEMATIC DIAGRAM – MAIN BOARD (3/4) –
20
MAIN BOARD
(1/4)
(Page 27)
D
DIGITAL
BOARD
(4/5)
CNP506
(Page 21)
0.7
4.1
0.4
-0.6
-37
-36
-1.5
0
-5.5
-36.4
0.2
0
-1.1
-1.1
1.1
0
0
6.3
-37
7
-5.5
-3.6
-5.5
37
0
-1.5
0
-1.1
-37
-1.5
0
-36
0
0
-2
0
1.1
0.4
-0.6
0.4
-1.1
0.4
1.1
-1.1
-1.1
37
0
1.1
-37
6.3
-5.5
1.2
-7
37
1.1
-1
37
-0.2
-0.2
-0.2
-0.2
37
-1
1
37
37
-37
No mark:FM
POWER AMP
Q851,Q852
-B SWITCH
-B SWITCH
PROTECT DET
Q701,Q702,Q751,Q752
LIMITER
LIMITER
Q705,Q706,Q755,Q756
CURRENT DETECT
CURRENT DETECT
Q703,Q704,Q753,Q754
BOOSTER
BOOSTER
L
SURROUND
SPEAKERS
IMPEDANCE
USE 6-16
USE 6-16
SUB WOOFER
R
R816
D703
Q708
R725
IC850
R853
R854
R852
R857
R815
C816
C815
C851
R724
R855
R479
R702
R752
R753
R703
C757
C707
C704
R701
R751
C703
C753
C756
C706
R704
C702
C752
R754
C701
C751
R700
C754
D448
D449
R449
C716
Q705
R721
R711
C713
R722
R713
C715
D702
Q706
R720
D701
R714
Q703
Q702
Q704
R708
R709
R707
C708
R705
Q701
R710
R706
C711
C712
C714
C766
Q755
R771
R761
C763
R772
R763
Q756
R770
D751
R764
Q753
Q752
Q754
R758
R759
R757
C758
R755
Q751
R760
R756
C761
C762
RR16
CC16
CC15
CC14
RR15
RR14
C700
RY701
JW700
JW751
JW754
JW752
JW753
R762
R712
R766
R765
R729
D729
R740
JW607
TM604
D852
Q851
Q852
R851
R858
R856
D851
R715
Q707
AF POWER
PROTECT
PROTECT
R719
R717
R718
R716
C729
CNP504
IC701
TP2
1
1SS133T-72
2SC1740S-QRT
RELAY DRIVE
100
NJM4565D
10k
33k
10k
10k
1
10
100V
10
100V
0.1
82
220k
2.2k
68k
100
10V
100p
1k
100p
3p
500V
68k
100p
4.7
50V
50V
47k
0.022
2SA1038S
-RSE-TP
10
4.7k
220p
47k
1.5k
10
50V
1SS133T-72
2SA1038S
-RSE-TP
68k
1SS133T-72
15k
MN2488-OPY-MK
2SC3623
-ATP-LK
-ATP-LK
MP1620
-OPY-MK
100
100
560
47
25V
2.2k
2SA1115TP-EF
0.22
82k
47p
500V
47p
500V
0.01
2.2
100V
50V
RELAY
12V
6.2k
2SC1815
GR-TPE2
GR-TPE2
DTA124ESA-TP
10k
470k
ISS133T-72
22k
2SC1815 GR-TPE2
22k
15k
22k
3.3k
68k
2.2k
2.7k
100
10V
1k
100p
3p
100p
68k
100p
1SS133T-72
1SS133T-72
1k
0.022
2SA1038S-RSE-TP
10
4.7k
220p
47k
1.5k
2SA1038S
-RSE-TP
68k
1SS133T-72
15k
MN2488-OPY-MK
2SC3623A
TP-LK
MP1620
-OPY-MK
100
100
560
47
25V
2.2k
2SA1115TP-EF
0.22
82k
47p
47p
10
0.01
0.01
0.01
10
10
6.2k
22k
2.2k
47k
1SS133T-72
100k
JW
470
0.01
5P
STK350-530T-E
(Page 27)
(Page 30)
(Page 28)
30
30
STR-K790
STR-K790
4-17. SCHEMATIC DIAGRAM – MAIN BOARD (4/4) –
J
HEADPHONE
BOARD
CNP790
(Page 34)
(Page 29)
0.1
0.7
0
3.3
4.1
4.1
-37
-37
-1.1
0
37
0.4
-0.6
0
-1.5
0
-37
0
-1.1
-37
37
0.4
-0.6
0
0
-1.7
0.7
0.1
0
-37.4
0
0
-1.1
-1.1
-1.1
0
0
1.1
1.1
0.4
-1
-1
-1
0
0
1.1
1
0.4
0
-37.6
0
3.3
4.1
4.1
0
-1.1
0
-0.6
0.4
37
0
-1.5
-37
-37
-1.1
0
-0.6
0.4
37
0
0
-1.5
-37
-37
-37
0
0
0
0.4
1.1
1.1
-1
-1
0
-1
0
0.4
1.1
1.1
-1
-1
-1
0
37
1
-1
37
-0.2
-0.2
-0.2
-0.2
37
-1
1
37
37
-37
37
1.1
-1
37
-0.2
-0.2
-0.2
-0.2
37
-1
1
37
37
-37
No mark:FM
POWER AMP
POWER AMP
AF POWER
PROTECT
PROTECT
Q881,Q883
PROTECT SWITCH
Q503,Q504,Q553,Q554,
Q603,Q604,Q653,Q654
Q603,Q604,Q653,Q654
BOOSTER
Q505,Q506,Q555,Q556,
Q605,Q606,Q655,Q656
Q605,Q606,Q655,Q656
CURRENT DETECT
Q501,Q502,Q551,Q552,
Q601,Q602,Q651,Q652
Q601,Q602,Q651,Q652
LIMITER
FRONT
SPEAKERS
IMPEDANCE
USE 6-16
USE 6-16
CENTER
R793
C551
C502
C552
R501
R551
C507
C557
R504
R554
C601
C602
C607
R601
R604
C651
C652
R651
R654
C657
R507
R508
R509
R511
R513
R514
R517
R518
R519
R520
R522
C513
C514
C516
R558
R559
R570
R561
C563
R563
R564
R569
R568
C565
R567
C564
R557
R572
R571
C566
R607
R609
C613
R613
R614
R619
R618
C615
C614
R617
R622
C616
R620
R669
R668
C664
R667
C665
R672
R671
C666
R664
R670
R663
C663
R661
R658
R659
R657
R624
C882
R882
R883
R884
R885
C506
C606
R516
R566
R616
R666
RY502
C662
C661
C612
C611
C562
C561
C512
C511
RY601
R512
R562
R612
R662
R515
R565
R615
R665
R510
R610
R660
R531
R532
R791
C501
C515
R625
C554
C654
RY551
C504
R560
R574
R500
R600
D884
D529
D549
C529
C549
R653
R603
C603
C604
C653
IC601
JW600
R553
R503
JW500
C503
C553
IC501
RR13
RR12
TM602
TM602
RR11
D791
CN701
Q509
D881
R840
R844
R843
R549
R550
R529
R539
Q653
Q651
Q652
Q655
D651
D652
Q657
Q654
Q656
Q606
Q602
Q605
D601
D602
Q607
Q557
D552
D551
Q555
Q553
Q551
Q552
Q556
Q506
Q502
Q501
Q503
Q505
D501
D502
Q507
D553
Q608
Q881
R881
C881
Q882
Q883
D882
D883
D603
D841
C842
C658
C608
C558
C508
C600
R602
C656
R652
C500
R502
R552
C556
R655
R656
R605
R606
Q601
R608
Q604
R621
Q603
R611
R555
R556
Q554
R505
R506
Q504
R521
CC11
CC12
CC13
82
4.7
50V
100p
100p
1k
1k
100
10V
100
10V
68k
68k
4.7
50V
100p
100
10V
1k
68k
4.7
50V
100p
1k
68k
100
10V
560
100
100
4.7k
1.5k
15k
15k
22k
22k
68k
47k
220p
0.01
0.022
100
100
68k
4.7k
220p
1.5k
15k
22k
22k
10
50V
15k
0.01
560
47k
10
0.022
560
100
220p
1.5k
15k
22k
22k
10
50V
0.01
15k
47k
0.022
68k
22k
22k
0.01
15k
10
50V
47k
10
0.022
15k
68k
1.5k
220p
4.7k
100
100
560
82
10
50V
10k
6.8k
39k
1k
3p 500V
3p
500V
3.3k
3.3k
3.3k
3.3k
47p
500V
47p
500V
47p
500V
47p
500V
47p
500V
47p
500V
47p
500V
47p
500V
6.2k
6.2k
6.2k
6.2k
22k
22k
22k
22k
680 1W
680 1W
0.22
0.22
0.22
RELAY
12V
RELAY
12V
2.2k
4.7
50V
10
50V
2.2k
100p
500V
500V
100p
500V
500V
RELAY
12V
100p
500V
500V
0.22
82
47k
47k
1SS133T-77
100p
50V
100p
500V
500V
100p
50V
100p
50V
100p
50V
1SS133T-72
4P
2SC1740S-QRT
1SS133T-72
MN2488
-OPY-MK
2SA1115TP-EF
2SC3623
ATP-LK
2SA1038S
-RSE-TP
1SS133T-72
1SS133T-72
2SC1815 GR-TPE2
MP1620
-OPY-MK
2SA1038S
-RSE-TP
2SA1038S
-RSE-TP
2SC3623
ATP-LK
2SA1038S
-RSE-TP
1SS133T-72
1SS133T-72
2SC1815 GR-TPE2
2SC1815 GR-TPE2
1SS133T-72
1SS133T-72
2SA1038S
-RSE-TP
MN2488-OPY-MK
2SA1115TP-EF
2SC3623
ATP-LK
2SA1038S
-RSE-TP
2SA1038S
-RSE-TP
2SC3623
ATP-LK
2SA1115TP-EF
MN2488-OPY-MK
2SA1038S
-RSE-TP
1SS133T-72
1SS133T-72
2SC1815 GR-TPE2
1SS133T-72
2SC1740S-QRT
2SA1038S
-RSE-TP
2SC1740S-QRT
2SC1841
TP-PAFAEA
1SS133T-72
1SS133T-72
1SS133T-72
47
25V
47
25V
47
25V
47
25V
2.2
100V
68k
3p 500V
68k
2.2
100V
68k
68k
3p 500V
2.2k
82k
2.2k
82k
2SA1115TP-EF
100
MP1620
-OPY-MK
10
MN2488
-OPY-MK
4.7k
2.2k
82k
MP1620
-OPY-MK
2.2k
82k
MP1620
-OPY-MK
10
1SS133T-72
1SS133T-72
0.01
0.01
2.7k
2.7k
STK350-530T-E
2.7k
2.7k
STK350-530T-E
10
10
10
6.8k
22k
22k
47k
100k
47k
100k
47k
10V
MTZJ-T-72-5.6C
47
25V
0.01
0.01
0.01
AF POWER
PROTECT
PROTECT
AF POWER
PROTECT
PROTECT
AF POWER
PROTECT
PROTECT
RELAY DRIVE
RELAY DRIVE
VACS
CONTOROL
(Page 27)
Ver. 1.1
31
31
STR-K790
STR-K790
IC102
IC101
IC100
1-872-420-
11
(11)
1
23
CL103
CL104
CL105
CL106 CL107
CL109 CL110
CL111 CL112
CL113 CL114
CL115 CL116
CL117 CL118
CL127
CL119
CL125
CL120
CL121
CL128
CL108
JW119
RV101
FL101
FLUORESCENT INDICATOR TUBE
R103
R115
R116
R117
R118
R119
C100
C101
C106
C107
C110
C111
C112
S103
S104
C144
C145
C147
C148
C149
C150
C151
C152
R198
R199
JW153
JW139
JW109
JW114
JW132
JW151
JW141
JW115
JW111
JW110
JW129
JW149
JW127
JW118
JW150
JW138
JW117
JW136
JW144
JW130
JW131
JW142
JW113
JW133
JW120
JW101
JW102
JW103
JW128
JW116
JW135
JW134
JW152
JW148
JW143
R121
JW108
CN104
JW105
JW140
JW137
JW146
JW147
CNS102
CN101
W101
JW106
JW107
RV102
CNP102
TP100
C146
C161
JW112
JW145
JW104
DISPLAY BOARD
1
2
A
B
C
D
E
3
4
5
6
7
8
9
10
11
12
13
14
K
POWER
BOARD
CNP102
(Page 33)
I
MAIN
BOARD
CNP908
(Page 25)
L
DCAC
BOARD
CN2001
(Page 33)
H
DIGITAL
BOARD
CNS513
(Page 17)
AUTO CAL
INPUT
SELECTOR
SELECTOR
MASTER
VOLUME
VOLUME
DISPLAY
4-18. PRINTED WIRING BOARD – DISPLAY BOARD –
:Uses unleaded solder.
• See page 13 for Circuit Boards Location.
32
32
STR-K790
STR-K790
4-19. SCHEMATIC DIAGRAM – DISPLAY BOARD –
• See page 38 for IC Block Diagrams.
20
22
22
21
17
14
21
21
21
21
-16
8
0
-10
-19
0
-21
-20
-20
-20
-20
-20
-20
-20
-20
-20
-20
-17
-9
0
2.8
0
5
5
5
5
3.3
3.3
5
3.3
0.7
5
0
5
5
5
3.3
No mark : FM
2200p
C106
0.1
C100
0.1
C101
0.1
C144
0.1
C145
0.1
C150
0.1
C151
0.1
C152
220p
C110
220p
C111
220 p
C147
220 p
C148
220p
C149
100
R115
100
R116
10 0
R117
10 0
R119
82k
R118
10
R121
S103
S103
S104
VCC
GND
OUT
RPM7240-H4
IC102
1
2
3
10
11
8
9
6
7
4
5
2
3
1
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
PT6315
IC100
SW
1
SW
2
SW
3
SW
4
OSC
DOUT
DI
N
CLK
ST
B
KEY1
KEY2
VSS
VDD
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
VEE
SEG17
G
RID11
G
RID10
GRID9
GRID8
GRID7
GRID6
GRID5
GRID4
GRID3
GRID2
GRID1
VDD
VSS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
17P
CNS102
DC-CONTROL
GND
GND
+3.3V(STDBY )
+5V
VOL_JOG_2A
VOL_JOG_2B
PW_SW
SIRCS
AD2
AD1
FL_LAT
FL_DI N
FL_CLK
INPUT_JOG_4A
INPUT_JOG_4B
DCAC_IN
220p
C112
2200p
C107
2
5
6
7
8
9
10
11
12
14
19
18
17
13
16
20
15
23
24
27
21
28
26
25
22
31
33
35
30
32
36
34
29
42
44
43
40
37
39
38
41
46
48
47
45
49
50
53
FLUORESCENT INDICATOR TUBE
FL101
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TC74ACT08P
IC101
RV101
1
2
3
CL103
CL104
CL105
CL106
CL107
CL108
CL109
CL110
CL111
CL112
CL113
CL114
CL115
CL116
CL117
CL11 8
CL119
CL120
CL121
CL125
CL127
CL128
JW109
5.5
JW120
10
JW103
10
JW102
JW101
1
2
3
CN104
3P
-20V
F1
F2
47 0
R103
JW146
JW147
1
2
3
CN101
3P
AD1
PW_SW
GND
RV102
1
2
3
1
2
2P
CNP102
DCAC_IN (CN2001)
DC-CONTROL (CN2001)
50V 10
C146
50V
10
C161
R198
2.2
R199
1G
2G
3G
4G
5G
6G
7G
8G
9G
10G
11G
1G
2G
17P
3G
4G
16P
5G
15P
14P
13P
12P
11P
10P
9P
8P
6P
7P
5P
4P
2P
1P
6G
7G
8G
9G
10G
11G
3P
17P
16P
15P
14P
13P
12P
11P
10P
9P
8P
7P
6P
5P
4P
3P
2P
1P
DISPLAY BOARD
IC100
FL DISPLAY DRIVER
IC101
ELECTRONIC VOLUME
IC102
REMOTE
CONTROL RECEVER
DISPLAY
MASTER
VOLUME
VOLUME
INPUT
SELECTOR
AUTO CAL.
2.2
IC B/D
IC B/D
H
DIGITAL
BOARD
(4/5)
CNS513
(Page 21)
L
DCAC
BOARD
CN2001
(Page 34)
K
POWER
BOARD
CNP152
(Page 34)
I
MAIN
BOARD
(2/4)
CNP908
(Page 28)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A
B
C
D
E
F
G
H
I
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