Sony HT-DDW880 / HT-DDW900 / STR-K880 / STR-K900 Service Manual ▷ View online
17
17
STR-K880/K900
STR-K880/K900
3-2. BLOCK DIAGRAM – DISPLAY/POWER SECTION –
• R-CH is omitted due to same as L-CH.
IN2
8
12
+V OUT2
POWER AMP
IC701
POWER AMP
IC601
9
NF2
LIMITER
Q701,702
11
-V OUT2
IN2
12
+V OUT2
9
NF2
11
-V OUT2
BOOSTER
Q703
BOOSTER
Q704
CURRENT
DETECT
Q705,706
AF POWER
PROTECT
Q740
LIMITER
Q651,652
BOOSTER
Q653
BOOSTER
Q654
CURRENT
DETECT
Q655,656
IN2
8
12
+V OUT2
POWER AMP
IC501
9
NF2
LIMITER
Q501,502
11
-V OUT2
BOOSTER
Q503
BOOSTER
Q504
CURRENT
DETECT
Q505,506
2
+V OUT1
5
NF1
LIMITER
Q571,572
3
-V OUT1
BOOSTER
Q533
BOOSTER
Q534
CURRENT
DETECT
Q535,536
D721
PROTECT
SWITCH
Q722,723,725
RELAY
DRIVE
Q790
RY791
RELAY
DRIVE
Q710
RY701
D1110
RELAY
DRIVE
Q610
RY601
RY600
D1108
RELAY
DRIVE
Q800
RELAY
DRIVE
Q550
RY501
D1107
D1111
L
R
SR
SL
C
R-CH
L
R
R-CH
R-CH
R-CH
PHONES
TM601
TM602
61
PROTECTOR
62
HP RY
66
FRONT RY
69
REAR RY
68
C/SB RY
67
SP_B_RY
RV102
ENCODER
3
1
VOL_ENC(B)
64
VOL_ENC(A)
65
POWER KEY
56
?/1
S100
77
RSTX
48
STOP
54
SIRCS
72
BRIGEABLE RY
63
FUSE DETECT
REMOTE
CONTROL
RECEIVER
1
IC102
D910-913
AC
IN
T902
RY901
D915
F901
D914
RELAY
DRIVE
Q901
D920-923
23
VCC5
84
VCC3
-7V
REG
3
2
+7V
REG
1
3
AUDIO
+7V
IC801
IC802
POWER RY
58
RELAY
+B
D805-808
82
83
X0
X1
X1101
24MHz
F1
F2
L
SL
SL
C
A
IN1
6
SBL
J791
FLUORESCENT
INDICATOR TUBE
FL101
FL_DATA
FL_CLK
9
FL_LAT
7
DIN
8
CLK
9
STB
14 29
SEG1-16
42 31
GRID1-12
F1
F2
FL DRIVE
IC100
ADCC
38
S108-111,115
FUNCTION
KEY
A/D1
39
FUNCTION
KEY
A/D2
40
S101-107
SYSTEM CONTROL
IC1101(2/2)
• Signal Path
: FM
AF POWER
PROTECT
Q640
AF POWER
PROTECT
Q540
AF POWER
PROTECT
Q580
IC691
2
1
FRONT A
FRONT B
SURROUND
IC691
5
7
55
HP DETECT
BUFFER
IC101
35
AVCC
+3.3V
REG
3
1
IC1904
AUDIO
-7V
+10V
REG
3
1
TUNER
+10V
IC1902
+3.3V
REG
3
1
TUNER
+3.3V
IC1071
RY801
T901
Q921
AC DET
1
2
IC1111
D802
R803
+B
-B
-B
SWITCH
Q691,692
RELAY
DRIVE
Q809
VOLTAGE
SELECT
S901
-20V REG
Q801
FL101
-20V
POWER AMP
-B
+5V
REG
3
1
IC1031
+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
1
ENC_B
32
ENC_A
31
INPUT
SELECTOR
8
RESET
5
1
IC2000
AMP
+3.3V
(STBY)
MAIN
SECTION
TM501
K880
CENTER
SB
SURROUND
BACK
(Page 16)
B
MAIN
SECTION
(Page 16)
AUTO CAL MIC
J2000
RY802 RY803
AEP, UK
CND
E51
EXCEPT
CND
CND
EXCEPT
E51
E51
18
18
STR-K880/K900
STR-K880/K900
3-3. PRINTED WIRING BOARD – DIGITAL BOARD (SIDE A) –
:Uses unleaded solder.
• See page 15 for Circuit Boards Location.
IC1301
IC1303
IC1452
IC1501
IC1502
IC1602
IC1601
IC1503
IC1101
IC1131
IC1406
IC1405
IC1404
IC1403
IC1401
IC1111
AEP,UK
EXCEPT AEP,UK
EXCEPT
AEP,UK
AEP,UK
AEP,UK
1-868-878-
11
(11)
DIGITAL BOARD
(SIDE A)
R1354
JR1303
R1318
C1315
C1315
R1321
R1351
R1362
R1301 C1301
JR1005
C1302
JR1302
FB1306
C1304
C1303
R1303
R1304
D1302
C1360
R1359
R1358
C1357
R1357
R1356
R1357
R1356
FB1453
C1361
JR1008
C1405
C1408
C1362
R1402
FB1452
R1401
FB1405
R1407
R1403
R1403
C1002
R1486
C1487
R1484
C1542
R1492
R1460
R1461
R1483
C1483
R1445
C1441
R1444
R1491
R1507
R1506
R1505
R1504
R1503
R1502
FB1503
R1556
R1305
C1522 C1521
R1515
R1523
R1513
JR1020
JR1511
R1360
R1319
D1301
FB1305
R1306
R1307
R1308
R1309
R1310
R1312
R1313
R1311
R1315
R1316
C1251 C1253
R1010
R1011
R1012
R1013
R1014
R1015
R1016
R1017
R1202
R1555
R1557
RB1500
RB1507
R1501
C1509
C1511
R1512
R1514
RB1506
RB1501
RB1502
RB1504
R1574
RB1503
RB1508
R1573
R1570
R1571
R1572
R1571
R1572
R1541
R1150
R1511
R1508
R1509
R1472
R1475
R1420
R1471
R1470
R1473
C1472
R1495
R1493
R1434
R1463
C1432
R1435
C1462
R1464
R1446
R1476
C1566
C1569
R1436
C1567
R1426
C1913
C1063
JR1202
C1105
C1104
R1063
R1062
R1061
R1068
R1067
R1066
R1065
C2217
R1130
R1041 R1042
R1140
R1134 R1135
R1136
R1137
R1120
R1044
R1044
R1142
C1502
R1049
R1143
R1153
R1121
R1154
R1152
R1151
R1076
R1510
R1144
R1161
R1162
R1160
R1149
C1255
R1155
R1421
R1156
C1254
R1494
R1454
R1424
R1490
C1422
R1425
C1451
R1455
R1414
C1411
R1466
C1568
C1557
R1416
R1188
R1185
R1084
R1081
R1164
R1194
R1157
C1142
C1118
C1119
R1635
C1620
C1604
C1129
C1131
C1132
R1636
C1605 R1128
C1130
R1191
R1192
R1097
R1122
R1123
R1129
R1083
R1123
R1129
R1083
R1124
R1106
R1108
R1077
R1078
C1123
C1122
R1189
C1107
R1127
R1542
C1137
X1101
C1102
R1119
R1113
R1115
R1116
R1125
R1111
R1110
R1126
R1109 R1107
R1114
R1035
R1112
R1117
R1118
R1201
R1187
R1059
R1175
R1095
R1094
R1058
D1001
FB1308
R1179
R1180
R1088
R1073
R1072
R1180
R1088
R1073
R1072
R1183
R1184
R1184
R1181
R1182
R1172
R1171
R1103
X1502
X1301
1
12
24
13
1
5
10 1213
15
20
24
25
30
36
37
40
45
48
1
4
5
8
1
5
10
1213 15
20
24 25
30
36
37
40
45
48
1
5
10
15
20
22
23
25
30
35
40
44
1
5
10
15
20
25
30
31
35
40
45
50
55
60
61
65
70
75
80
85
90
91
95
100
105
110
115
120
1
4
5
8
1
4
5
8
1
4
5
8
1
4
5
8
1
4
5
8
1
50
31
30
51
100
81
80
1
16
9
8
1
16
9
8
1
4
5
8
1
2
A
B
C
D
E
3
4
5
6
7
• Semiconductor
Location
Ref. No.
Location
D1001
B-6
D1301
C-2
D1302
C-1
D1501
D-6
D1502
D-6
IC1101
D-5
IC1111
C-6
IC1131
E-5
IC1301
B-2
IC1303
C-2
IC1401
E-2
IC1403
E-3
IC1404
E-3
IC1405
E-4
IC1406
E-5
IC1452
D-2
IC1501
D-3
IC1502
C-3
IC1503
D-4
19
19
STR-K880/K900
STR-K880/K900
3-4. PRINTED WIRING BOARD – DIGITAL BOARD (SIDE B) –
:Uses unleaded solder.
• See page 15 for Circuit Boards Location.
MAIN
BOARD
CNP911
(Page 25)
MAIN
BOARD
CNP913
(Page 25)
A
B
DISPLAY
BOARD
CNS100
(Page 29)
C
MAIN
BOARD
CNP500
(Page 25)
G
MAIN
BOARD
CNP501
(Page 25)
H
STANDBY
BOARD
CNP903
(Page 31)
D
MAIN
BOARD
CNP912
(Page 25)
E
VIDEO
BOARD
CNS203
(Page 37)
F
IC1031
IC1901
IC1904
IC1071
IC1001
IC1902
IC1354
IC1351
1
1
7
5
1
1
1
2
3
3
3
4
5
SUFFIX-12,-13
SUPPLEMENT-1
Page 20
SUFFIX-11,-12,-13,-14
SUPPLEMENT-1
Page 17
SUFFIX-14
SUPPLEMENT-1
Page 21
for
FLASH
PROGRAMMING
FLASH
PROGRAMMING
1
6
23
1
1
2
8
9
2
7
10
AEP,UK
AEP,UK
AEP,UK
TUNER UNIT
VIDEO 1
IN
VIDEO 2
IN
DVD IN
COAXIAL
OPTICAL
DIGITAL
K880
17
16
2
1
15
14
2
1
1
3
3
3
3
1
1
3
1
1
1
10
1
15
CNS509
C1354
C1351
C1314
R1320
C1313
FB1302
R1323
C1305
C1308
R1302
C1358
C1359
C1306
C1312
R1314
C1134
C1310
C1309
JR1207
C1355
R1355
J1301
C1457
C1401
C1402
C1454
R1474
C1005
C1403
C1404
C1450
C1460
C1001
C1409
C1494
D1003
C1407
C1406
R1260
R1261
R1530
D1501
D1503
D1502
D1504
C1501
D1004
C1004
C1491
C1481
C1442
C1541
C1448
C1438
C1547
CNS501
C1468
C1428
C1433
C1473
C1545
C1504
C1505
C1506
C1503
C1507
C1508
C1510
C1513
C1514
C1520
C1519
C1251
R1252
C1252
CNS508
JR1019
C1914
C1064
FB1501
JR1015
FB2034
C2216
C2218
C1516
C1515
JR1016
C1517
C1518
C1525
C1543
C1463
C1418
C1423
C1458
C1544
C1540
C1478
C1453
C1413
CNS502
JR1104
R1082
R1159
C1139
C1495
C1144
R1096
C1145
C1146
C1149
C1121
C1602
C1601
C1103
FB1502
CNP505
CNP503
D1108
D1107
FB1101
C1022
R1039
D1110
D1111
C1100
C1140
C1299
C1138
R1193
C1120
R1190
C1124
C1108
CNS504
C1172
R1186
C1171
R1105
CNS505
C1032
C1906
C1908
CNP504
C1905
C1031
1-868-878-
11
(11)
DIGITAL BOARD
(SIDE B)
C1021
TP1000
1
2
A
B
C
D
E
3
4
5
6
7
8
• Semiconductor
Location
Ref. No.
Location
D1003
D-6
D1004
D-6
D1107
C-3
D1108
C-3
D1110
C-3
D1111
C-3
D1503
D-6
D1504
D-6
IC1001
E-6
IC1031
B-1
IC1071
B-4
IC1351
C-7
IC1354
B-7
IC1601
C-5
IC1602
C-5
IC1901
B-2
IC1902
A-4
IC1904
B-3
Ver. 1.2
20
20
STR-K880/K900
STR-K880/K900
3-5. SCHEMATIC DIAGRAM – DIGITAL BOARD (1/5) –
• See page 15 for Waveform.
• See page 41 for IC Block Diagram.
C1303
C1305
R1318
R1313
R1314
R1355
R1356
R1357
R1358
R1359
R1354
R1351
X1301
R1310
C1313
R1316
R1315
C1004
R1312
C1914
JR1202
C1005
C1306
R1301
R1306
IC1354
IC1351
C1354
C1351
C1357
C1355
C1252
C1253
C1308
TN1
C1064
JR1005
R1302
JR1302
JR1303
R1323
C1362
TP1003
FB1302
R1305
R1308
C1312
R1319
C1310
R1311
R1360
FB1305
TP1004
R1307
C1314
FB1306
C1359
C1358
C1361
R1261
R1260
R1252
R1251
JR1020
R1321
C1315
C1302
C1301
C1309
C1360
JR1511
C1304
R1304
R1303
C1913
C1063
IC1071
D1302
IC1902
CNS508
J1301
JR1207
D1003
D1004
IC1301
C1251
JR1019
D1301
IC1303
R1362
R1309
100
100
0
TORX147L
TORX147L
0.1
0.1
0.1
0.1
10k
100
10k
75
1k
22k
560k
100
12.288MHz
1M
100p
100
100
0.1
100
47
16V
0.1
47
16V
5.6k
22
1p
22
25V
0.1
0.1
0.1
47
16V
0
4.7k
0
0
10k
0.01
680
100
0.1
0
18p
100
100
100
0.1
1000
6.3V
6.3V
0.1
0.1
1k
1k
39k
39k
0
0
0.1
0.01
0.1
18p
47p
0.01
100
33k
0.1
0.1
TA78033LS
1SS355-TE-17
TA7809LS
0
1SS367-T3SONY
1SS367-T3SONY
LC89056W-E
0.1
0.1
1SS355TE-17
TC7WU04F(TE12R)
100
100
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