Sony HT-DDW790 / HT-DDW795 / STR-K790 Service Manual ▷ View online
13
13
STR-K790
STR-K790
• Circuit Boards Location
SECTION 4
DIAGRAMS
For Schematic Diagrams.
Note:
• All capacitors are in
Note:
• All capacitors are in
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
• %
: indicates tolerance.
•
f
: internal component.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• Voltages and waveforms are dc with respect to ground un-
der no-signal (detuned) conditions.
No mark : FM
No mark : FM
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
J
: ANALOG
c
: DIGITAL
I
: VIDEO
For Printed Wiring Boards.
Note:
•
Note:
•
X
: parts extracted from the component side.
•
a
: Through hole.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
• Indication of transistor.
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Side B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side A)
the parts face are indicated.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
• Waveforms
– DIGITAL Board –
1
IC1905
9
(MCLK1)
1 V/DIV, 40 ns/DIV
72 ns
3.5 Vp-p
2
IC1101
id
(X1)
1 V/DIV, 20 ns/DIV
41.6
n
s
4.2 Vp-p
3
IC1301
ws
(XIN)
1 V/DIV, 40 ns/DIV
81.4 ns
4.2 Vp-p
DIGITAL board
MAIN board
DISPLAY board
HEADPHONE board
POWER board
DCAC board
STANDBY board
HDMI BRIDGE board (AEP,UK)
HDMI SW board (AEP,UK)
Note:
The components identi-
fied by mark
fied by mark
0
or dot-
ted line with mark
0
are
critical for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés
par une marque
par une marque
0
sont cri-
tiques pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
14
14
STR-K790
STR-K790
4-1. BLOCK DIAGRAM – MAIN SECTION –
• Signal Path
: FM
: ANALOG
: DIGITAL
: VIDEO
• R-CH is omitted due to same as L-CH.
AUDIO IN
AUDIO IN
AUDIO IN
PROCESSOR
INL3
6
49
LOUT
INL4
4
INL5
2
40
SLOUT
33
COUT
DATA
24
CLOCK
25
59
VOL IC_CL
SDA
SCL
60
VO ICL_DA
SYSTEM CONTROL
IC1101(1/2)
VIDEO 2/
BD IN
DVD
IN
J1301
3
5
6
2
IC1303
DIGITAL AUDIO
I/F RECEIVER
IC1301
L
DISPLAY
/POWER
SECTION
/POWER
SECTION
DIN2
5
DOUT
35
DI
36
CLK
38
CE
37
ERROR
34
XSTATE
17
XMODE
48
13
CK OUT
20
XMCK
14
BCK
15
LRCK
16
DATAO
IC1303
X1301
12.288MHz
AUDIO DSP
IC1905
KFSI0
SYSCLK
LRCK
BCK
DOUT
22
15
10
11
12
SDI2
30
HCLK
34
HCS
36
HACN
32
PM
113
XRST
2
23
SDO1
24
SDO2
25
SDO3
BCKI2
29
LRCKI2
28
LRCKI1
15
BCKI1
17
IC1502
SRAM
AUDIO CODEC
IC1452
AD CONVERTER
IC1401
SCKI
38
RST
37
ML
36
MC
35
MDI
34
MDO
33
10
VOUT5
BCK
40
LRCK
41
DATA3
47
DATA1
45
DATA2
46
14
VOUT1
12
VOUT3
11
VOUT4
ANALOG SOUND
27
AVCC
26
DVDD
SL
ADIFL
13
LIN
16
19
20
21
SL
C
32
SWOUT
SW
SLIN
CIN
SWIN
A
98 97 95 96 99 100
94
1
DO
DI
CLK
CE
ERROR
XSTATE
CKSEL1
DATA0
3
BST
20
HCLK
4
HCS
5
HACN
7
PM
92
BST_SEL
6
XRST
10
PCM1609/1803_RST
12
PCM1609_ML
13
PCM1609_MC
14
PCM1609_MDI
15
PCM1609_MDO
5
6
29
30
J400
INL2
8
SA-CD/CD
SAT
TV
OPTICAL
IN
IC1351
DIN0
3
22
21
XIN
XOUT
12
9
93
XMODE
CKSEL1
47
GP9
68
HDOUT
35
HDIN
33
2
GP9
18
HD OUT
19
HD IN
8
GP12
GP12
37
MCLK1
MCLK2
X1502
13.9MHz
14
SCKOUT
1
LIN
7
PDWN
20
BCKO
19
LRCKO
18 SDI1
24
AUDIO
GP8
69
EXLOCK
59
INL1
10
TUNER PACK
FM
75
Ω
COAXIAL
AM
R-CH
DI
DO/SD/ST
CLK
CE
FM
AM
R CH
L CH
TUNER +10V
10V
DO/SD/ST
73
SLATCH
74
TUNER_DATA
47
TUNER_CLK
46
OPTICAL
DIGITAL
COAXIAL
D1301
IC400
SDA
SCL
EEPROM
IC1131
IC502
WOOFER AMP
3
7
IC1503
SELECTOR
1
6
5
56
2
A
B
BST
S
Y
ANTENNA
(Page 15)
B
DISPLAY
/POWER
SECTION
(Page 15)
57
ADCC_INT
D1501-1503
+3.3V
REG
+7V
Q471
VIDEO 1 IN/
PORTABLE AUDIO IN/
AUTO CAL MIC
J2000
R-CH
AUTO CAL MIC
86
HDMI_S1
87
HDMI_OED
CN5001
CN5002
CN5003
DVD IN
HDMI
HDMI
VIDEO 2 / BD IN
OUT
OEB
42
2,3,5,
6,8,9,
6,8,9,
11,12,
14,15,
14,15,
80
62-64,
67,68,
70,71,
73,74,
67,68,
70,71,
73,74,
76,77
25,26,
28,29,
31,32,
34,35,
28,29,
31,32,
34,35,
38-40
S1
21
IC5004
INPUT
DET
1
5
7
3
IC5005
INPUT
SELECT
88
HDMI_PRE
3
1
4
6
IC5002
+5V REG
IC5001
HDMI
SELECT
4
5
HDMI
+5.8V
+5.8V
1
AEP,UK
AEP,UK
RDS DATA
RDS INT
SD
RDS DATA
RDS CLK
53
52
TUNER SD
43
15
15
STR-K790
STR-K790
4-2. BLOCK DIAGRAM – DISPLAY/POWER SECTION –
• R-CH is omitted due to same as L-CH.
• Signal Path
: FM
IN2
8
12
+V OUT2
POWER AMP
IC501
POWER AMP
IC601
9
NF2
LIMITER
Q501,502
11
-V OUT2
IN2
12
+V OUT2
9
NF2
11
-V OUT2
BOOSTER
Q503
BOOSTER
Q504
CURRENT
DETECT
Q505,506
AF POWER
PROTECT
Q507
LIMITER
Q601,602
BOOSTER
Q603
BOOSTER
Q604
CURRENT
DETECT
Q605,606
IN2
8
12
+V OUT2
POWER AMP
IC701
9
NF2
LIMITER
Q701,702
11
-V OUT2
BOOSTER
Q703
BOOSTER
Q704
CURRENT
DETECT
Q705,706
2
+V OUT1
5
NF1
LIMITER
Q751,752
3
-V OUT1
BOOSTER
Q753
BOOSTER
Q754
CURRENT
DETECT
Q755,756
D1001
PROTECT
SWITCH
Q881-883
RELAY
DRIVE
Q509
RY502
RELAY
DRIVE
Q608
RY551
D1111
RY601
D1110
RELAY
DRIVE
Q708
RY701
D1107
L
R
R
L
R-CH
R-CH
SR-CH
R-CH
R-CH
SR-CH
SR-CH
R-CH
R-CH
PHONES
TM602(1/2)
61
PROTECTOR
62
HP_RY
66
FRONT_A_RY/DG51_FB
69
C/REAR/SB_RY
RV102
ENCODER
3
2
VOL_ENCODER(B)
64
VOL_ENCODER(A)
65
POWER_KEY
56
?/1
S152
77
RSTX
48
STOP
54 SIRCS
63
FUSE DETECT
REMOTE
CONTROL
RECEIVER
1
IC102
D910-913
AC
IN
T900(AEP,UK)
T902(US,CND)
T902(US,CND)
RY901
D915
F901
D914
RELAY
DRIVE
Q901
D920-923
23
VCC5
84
VCC3
-7V
REG
3
2
+7V
REG
1
3
AUDIO
+7V
IC821
IC822
POWER_RY 58
RELAY
+B
D804-807
82
83
X0
X1
X1101
24MHz
F1
F2
L
SL
SL
C
A
IN1
6
SW
J790
FLUORESCENT
INDICATOR TUBE
FL101
9
FL_LAT
7 DIN
8 CLK
9 STB
16
FL_CLK
17
FL_DATA
14
29
31
31
SEG1-17
42
32
GRID1-11
F1
F2
FL DRIVE
IC100
ADCC
38
DC-CONTROL
68
S114-119
FUNCTION
KEY
A/D1
39
FUNCTION
KEY
A/D2
40
S103,104
SYSTEM CONTROL
IC1101(2/2)
AF POWER
PROTECT
Q607
AF POWER
PROTECT
Q707
FRONT
SURROUND
55
HP_DETECT
BUFFER
IC101
35
AVCC
36
AVRH
+3.3V
REG
3
1
IC1904
AUDIO
-7V
+10V
REG
3
1
TUNER
+10V
IC1902
T901
Q911
AC DET
1
2
IC1111
D811
R803
+B
-B
-B
SWITCH
Q851,852
-20V REG
Q801
FL101
-20V
POWER AMP
-B
+5V
REG
3
1
IC1031
PROTECT
DET
2
7
IC850
+5V
+2.5V
REG
5
+2.5V
+3.3V
REG
2
4
IC1901
+3.3V
+5V
REG
3
1
IC1001
AUDIO
+5V
SPEAKERS
IMPEDANCE USE 6-16
Ω
MASTER
VOLUME
VOLUME
RV101
ENCODER
3
2
ENC_B
32
ENC_A
31
INPUT
SELECTOR
8
RESET
5
1
IC2000
AMP
+3.3V
(STBY)
MAIN
SECTION
CENTER
SUB
WOOFER
(Page 14)
B
MAIN
SECTION
(Page 15)
AUTO CAL MIC
+7V
TM604(1/2)
TM602(2/2)
TM604(2/2)
DC
CONTROL
Q2001,2002
VACS
CONTROL
D841
R-CH
45
VAX CTRL
+5.8V
REG
4
1
2
IC5006
HDMI
+5.8V
+5.8V
+3.3V
REG
3
1
IC5003
HDMI
+3.3V
+3.3V
89
HDMI_CTRL
AEP,UK
16
16
STR-K790
STR-K790
4-3. PRINTED WIRING BOARD – DIGITAL BOARD (SIDE A) –
:Uses unleaded solder.
• See page 13 for Circuit Boards Location.
IC1905
IC1301
IC1502
IC1452
IC1401
IC1131
IC1101
IC1111
IC1503
IC1303
1-872-321-
11
(11)
C1118
C1119
C1502
C1315
C1509
C1122
C1123
C1129
C1511
R1106
R1107
R1108
C1131
C1132
R1301
C1137
R1303
R1110
R1304
C1521
R1111
R1305
C1522
R1112
R1306
R1307
R1308
R1309
R1117
R1118
R1501
C1142
R1502
R1310
R1504
R1311
R1505
R1312
R1506
R1313
R1120
R1508
R1121
R1509
R1122
R1123
R1124
R1318
R1125
R1319
R1126
R1127
1
5
4
3
R1128
R1510
R1129
R1511
R1512
R1513
R1514
R1321
R1096
R1515
R1325
R1134 R1135
R1523
R1524
R1140
R1143
R1144
C1362
R1150
R1151
R1152
R1153
R1154
R1156
R1947
R1948
C1567
R1157
C1568
C1569
R1541
FB1452
FB1453
R1160
R1161
R1356
R1357
R1164
R1359
R1360
R1555
R1556
R1557
R1175
R1179
R1180
R1181
R1182
R1185
R1188
R1570
R1189
R1571
R1572
R1573
R1574
R1191
R1192
R1194
JR1511
RB1500
RB1501
RB1502
RB1503
RB1504
RB1506
RB1507
RB1508
X1101
X1301
C1405
C1408
D1001
X1502
C1604
C1605
C1414
C1415
R1201
R1010
R1011
FB1305
R1012
FB1306
R1013
R1014
FB1308
R1015
US,CND
US,CND
AEP,UK
AEP,UK
R1400
R1401
FB1503
R1403
FB1310
R1404
C1620
R1405
R1406
R1407
C1434
R1410
R1411
R1035
R1425
R1426
C1067
R1041
R1042
R1049
R1435
R1436
R1058
R1059
R1635
R1636
FB1350
R1445
R1446
R1253
R1061
R1062
R1065
R1066
R1067
R1068
R1072
R1073
R1076
C1487
R1077
R1460
R1461
R1464
R1466
R1469
JR1005
R1083
R1084
JR1008
R1088
R1470
R1471
R1472
R1475
R1476
R1094
R1095
R1484
JR1020
R1486
R1491
R1492
R1493
R1408
R1494
R1495
W1001
C1102
C1107
C1301
C1302
C1303
C1304
C1409
C1401
C1404
C1002
R1943
C1361
R1351
JL002
JL005
JL008
FB1403
FB1405
C1068
D1301
D1302
D1109
JL007
C1913
C1031
R1946
JL014
JL009
JL010
JL011
DIGITAL BOARD
(SIDE A)
15
DIGITAL
BOARD
(SIDE B)
(Page 17)
1
2
A
B
C
D
E
3
4
5
6
7
8
• Semiconductor
Location
Ref. No.
Location
D1001
B-6
D1109
C-7
D1301
C-3
D1302
C-2
IC1101
D-6
IC1111
C-7
IC1131
E-6
IC1301
B-3
IC1303
C-3
IC1401
E-2
IC1452
D-3
IC1502
C-4
IC1503
D-5
IC1905
C-4
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