Sony STR-DB1070 / STR-DB870 Service Manual ▷ View online
STR-DB870/DB1070
29
29
6-14. PRINTED WIRING BOARD – DIGITAL Board (Conductor Side) –
•
See page 22 for Circuit Boards Location.
IC1403
IC1404
IC1402
C1317
C1205
C1411
C1109
C1264
C1426
C1418
C1431
IC1802
Q1813
C1807
C1808
Q1801
IC1301
C1802
Q1803
IC1302
C1801
C1309
C1318
Q1811
C1617
C1310
CP1101
CN1102
CN1103
C1513
C1613
X1601
X1701
X1501
C1201
C1204
C1207
C1208
C1261
C1271
C1281
C1231
C1234
C1241
C1254
C1274
C1284
C1121
IC1401
C1131
C1244
C1251
C1104
IC1801
C1224
C1221
C1106
C1103
C1102
C1410
C1107
C1406
CN1105
CN1104
C1516
IC1803
C1815
FB1502
C1712
R1654
R1656
R1657
R1653
JW1003
JW1004
R1601
JW1006
FB1601
FB1404
R1280
C1232
R1221
R1222
R1223
R1231
R1232
Q1702
R1712
R1814
FB1201
C1721
C1616
C1615
C1614
C1611
C1610
C1609
C1608
C1607
C1606
C1605
C1604
C1603
C1602
C1601
C1282
C1272
C1262
C1252
C1242
R1233
C1206
R1241
C1210
R1242
R1243
C1203
C1211
R1811
JW1105
JW1104
R1771
R1702
R1738
R1762
R1761
R1760
R1764
R1759
R1758
R1757
R1753
C1707
C1709
C1722
R1763
R1737
R1741
R1734
R1727
R1251
R1706
R1655
R1252
R1253
C1222
R1713
C1705
C1701
R1704
R1735
C1719
C1708
C1718
C1717
C1716
C1715
C1714
C1706
JW1102
R1756
R1736
R1703
R1260
R1270
R1212
C1427
C1401
C1402
1
1
1
3
3
3
1
3
1
3
1
3
C1403
C1404
C1405
C1409
Q1701
C1424
R1799
R1411
C1419
C1421
C1412
C1429
C1425
C1423
R1749
C1430
C1702
C1306
C1307
C1312
R1815
R1303
R1812
R1607
C1416
R1609
C1110
C1612
R1513
C1517
R1667
FB1102
R1250
C1511
JW1005
R1605
R1509
R1608
FB1602
C1202
C1214
R1240
C1212
FB1603
R1512
R1204
C1417
C1422
C1503
C1502
C1501
C1507
C1505
C1515
C1514
C1506
C1504
C1510
C1509
C1508
R1281
R1263
R1262
R1271
C1283
R1261
R1283
R1401
C1311
JW1001
R1282
R1273
R1272
FB1202
FB1401
C1114
C1115
R1610
JW1002
IC1805
Q1810
C1809
IC1807
IC1806
C1812
C1811
CP1103
CN1109
CN1108
R1773
C1728
C1727
C1726
C1725
C1724
JW1101
C1723
R1813
FB1703
C1713
CN1101
CN1107
CN1106
IC1804
C1710
R1752
C1213
IC1808
(AEP, UK)
C1512
(US, CND)
MAIN BOARD
CN807
D
MAIN BOARD
CN806
F
(DB1070)
21
20
1
2
21
20
1
2
3
1
3
1
3
1
DC2
BOARD
CN901
E
MAIN
BOARD
CN808
G
1
2
1
3
DISP
BOARD
CN1601
C
1
2
31
30
DC2 BOARD
CN903
B
1
9
1
7
1
3
1
3
1
3
1
3
E
C
B
E
C
B
VIDEO BOARD
CN303
A
FM
75
Ω
COAXIAL
AM
*
FM/AM TUNER UNIT
1
3
B
C
E
MD/DAT
OPTICAL
OUT
MD/TAPE
OPTICAL
OUT
DVD/LD
COAXIAL
IN
(DB870)
(DB1070)
MD/DAT
OPTICAL
IN
TV/SAT
OPTICAL
IN
DVD/LD
OPTICAL
IN
MD/TAPE
OPTICAL
IN
(DB870)
(DB1070)
J1401
(DB1070)
E
E
(AEP, UK, E, CH)
(US, CND, E, CH)
(US, CND, E, CH)
(DB1070)
(DB1070)
(AEP, UK, E, CH)
B
C
E
B
C
E
1-681-098-
11
(11)
DIGITAL BOARD
(CONDUCTOR SIDE)
*
SUPPLIED AS THE
ASSEMBLED BLOCK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
A
B
C
D
E
F
G
H
I
J
K
L
DB870: CND/
DB1070
DIGITAL
• Semiconductor
Location
Ref. No.
Location
IC1301
C-17
IC1302
C-16
IC1401
D-17
IC1402
E-17
IC1403
G-17
IC1404
H-17
IC1801
C-9
IC1802
C-8
IC1803
C-6
IC1804
C-5
IC1805
K-3
IC1806
I-4
IC1807
I-4
IC1808
J-6
Q1701
E-7
Q1702
E-6
Q1801
C-8
Q1803
C-7
Q1810
J-3
Q1811
K-5
Q1813
K-6
(Page 30)
(Page 34)
(Page 40)
(Page 44)
(Page 44)
(Page 34)
(Page 34)
STR-DB870/DB1070
30
30
6-15. PRINTED WIRING BOARD – VIDEO Board –
•
See page 22 for Circuit Boards Location.
CN306
C367
C378
JW75
CN301
JW311
JW112
JW97
JW305
R342
JW126
IC312
JW86
JW87
R344
C354
JW103
JW108
JW107
JW319
JW104
JW316
JW315
JW95
C381
JW127
JW101
JW105
JW92
JW317
JW102
JW130
JW91
JW133
C342
C343
C369
JW96
C364
C374
R338
C347
C363
C335
JW318
C351
JW99
JW72
D304
D303
JW84
JW83
JW82
C346
C358
C365
C336
JW81
C360
R351
R339
C352
IC308
JW314
C379
C373
R315
R326
IC310
R345
R325
JW88
JW129
JW80
C307
R303
JW118
JW313
C326
R304
C302
R358
R308
R306
R354
R311
R313
JW59
R310
C308
C313
R305
R307
C377
R314
C305
R312
JW100
C312
C311
C310
C304
C309
JW106
JW93
C301
R318
R309
C382
R359
Q302
IC303
R302
R301
JW60
C303
FL303
C372
JW111
JW122
JW76
JW90
JW300
IC304
CT302
JW98
C380
IC311
R320
FL301
CT303
IC309
C328
FL302
JW312
R319
R332
R340
JW310
R324
C376
JW132
JW113
CP301
JW109
R355
C324
C350
R352
R353
C370
C359
C366
C362
C375
C348
R323
C349
X302
R330
R331
CT301
R317
JW125
R336
C368
D301
R350
R349
R348
R347
R334
Q305
Q304
C333
R333
R357
C339
C329
R329
C341
C361
C331
R321
C318
JW61
C337
C353
R341
R356
JW115
R346
C332
JW124
FB303
IC305
R327
C322
CN303
C320
C340
JW301
C319
C316
C330
R328
C315
C314
JW77
JW73
JW121
JW131
JW89
X301
JW119
C355
R316
R343
JW74
C345
JW110
C344
FL304
L301
R337
JW79
JW78
R335
R322
FL305
C323
C325
JW94
IC306
JW321
JW320
CP302
JW309
CN302
IC302
IC301
IC307
1
4
3
1
CONTROL A1 II
J303
MONITOR
OUT VIDEO
J302
TV/SAT
IN VIDEO
DVD/LD
IN VIDEO
OUT VIDEO
VIDEO 2
IN VIDEO
OUT VIDEO
VIDEO 1
IN VIDEO
PRR-Y
PBB-Y
Y
PRR-Y
COMPONENT VIDEO
PBB-Y
Y
PRR-Y
PBB-Y
Y
J305
J304
MONITOR
OUT
TV/SAT
IN
DVD/LD
IN
J301
E
1
8
16
9
1
7
8
14
1
7
8
14
(DB870)
(US, CND)
DB870: CND/
DB1070
DB870: CND/
DB1070
DB1070:
US, CND
US, CND
DB1070:
AEP, UK, E, CH
AEP, UK, E, CH
A
DIGITAL
BOARD
CN1104
H
S-VIDEO BOARD
CN751
(US, CND)
14
8
1
7
14
8
1
7
14
8
1
1
4
8
5
7
3
1
3
1
3
1
1
5
1
5
E
E
(DB1070: US, CND)
(DB1070: AEP, UK, E, CH)
(DB1070: AEP, UK, E, CH)
(DB1070: AEP, UK, E, CH)
(DB1070)
1-681-094-
11
(11)
VIDEO BOARD
A
B
C
D
E
F
1
2
3
4
5
6
7
8
(Page 29)
(Page 32)
D301
E-7
D303
C-2
D304
C-2
IC301
C-5
IC302
C-6
IC303
C-7
IC304
E-3
IC305
E-5
IC306
E-4
IC307
E-7
IC308
C-3
IC309
D-7
IC310
E-2
IC311
D-6
IC312
C-2
Q302
C-5
Q304
E-8
Q305
E-7
• Semiconductor
Location
Ref. No.
Location
STR-DB870/DB1070
31
31
6-16. SCHEMATIC DIAGRAM – VIDEO Board –
•
See page 46 for Waveforms.
•
See page 46 for IC Block Diagrams.
S-VIDEO
BOARD
CN751
C363
C
369
R
351
C373
C365
C364
C378
C380
R357
R305
R307
R310
R304
R306
R309
R325
R301
R302
R303
R312
R311
Q302
C
38
2
C
37
9
C381
C367
C360
C377
R355
IC310
FB303
C368
C362
C366
JW305
D
304
D
303
C358
R337
C302
C304
C305
R313
R314
R316
R315
C353
C352
C337
C343
R339
C344
R340
C351
C349
R346
C348
C347
R344
C346
C342
R338
C345
R341
C336
R342
C335
C354
C350
FL304
R
350
C
355
R348
R345
R343
R349
C375
R333
R330
R329
C339
C340
C341
C333
R334
C332
FL302
R332
C324
E5
E6
E7
E4
R317
X302
JW301
X301
CT301
C316
C
322
C323
C
T302
C329
R331
IC305
L301
CT303
C326
C328
C325
CN306
R
321
R
320
R
322
C319
C318
IC311
IC308
R354
R359
R308
CN302
CN303
CN301
IC309
R352
R353
C361
C359
C370
C372
R356
C374
IC312
IC302
Q304
FL305
FL303
IC304
IC306
FL301
J303
J304
J305
J302
R318
R323
J301
C310
R328
R
319
C
320
R336
R335
C331
C330
C315
C314
D301
C312
C309
C308
C311
R
358
IC303
C313
C307
R326
C301
IC301
C303
Q305
R347
R324
R327
C376
IC307
10
50V
47p
75
0.1
0.1
0.1
0.1
0.1
100
75
75
75
75
75
75
10k
75
75
75
1k
1k
BA1A4M
0.1
0.1
0.1
0.1
0.1
0.1
330
74ACT08
1
50V
10 50V
10 50V
1S
S
133
T
1S
S133
T
0.1
330
470
10V
10V
33p
33p
330
22k
22k
330
2200p
2200p
47p
47p
75
47p
75
2200p
10
50V
75
10
50V
10 50V
75
10
50V
47p
75
47p
75
47p
75
47p
0.1
0.1
47k
10
50V
47k
47k
47k
1.2k
10
50V
4.7k
10
10
0.1
2200
10V
0.1
0.1
100
0.1
100
0.1
1M
14MHz
17.34MHz
20p
10p
10p
27p
20p
100p
1k
BA7622F
20p
18p
0.1
33p
4P
1k
1k
1k
0.1
1
50V
LA7213
NJM-2296M-
330
330
1k
2P
LA7213
330
150k
1000
6.3V
6.3V
0.1
0.1
1000
6.3V
6.3V
150k
0.1
74ACT08
OPA2652
2SC2785
74HCU04
74HC00
3P
3P
1P
75
75
9P
10
50V
100
330
27p
75
75
10
50V
10 50V
470
10V
10V
470 10V
1SS133T
10
50V
10
50V
10
50V
10
50V
22
k
TC74HC4053AF
10 50V
33p
330
470
10V
OPA2652
470
10V
10V
2SC2785
3.9k
1M
330
1 50V
MB90089F-
G-238-BND
G-238-BND
SW1
SW2
SW3
SW4
SW1
SW2
SW3
SW4
A1
A2
A3
A4
A1
A2
A3
A4
B1
B2
B3
B4
B5
B1
B2
B3
B4
B5
C1
C2
C3
C4
C1
C2
C3
D1
D2
D1
D2
D3
D4
D3
D4
E1
E2
E3
E1
E2
E3
C4
*
*
GND
GND
EXVSYN
EXHSYN
VSYNC
HSYNC
XS
EXS
VCC
VBLK
FSCO
AVCC
VIN
CIN
YIN
YOUT
COUT
VOUT
CS
SIN
SCLK
TEST
VOC0
VOC1
VOC2
VOB
XD
EXD
+5V
SW1
SW2
SW3
SW4
GND
GND
VIDEO3
-5V
MONITOR-C/IN
MONITOR-C/OUT
MONITOR-Y/IN
MONITOR-Y/OUT
MBUS-STATUS-OUT
MBUS-TV
MBUS-DVD
MBUS-V1
SIRCS OUT
VCC
GND
CIN
VIN
YIN
VOUT
COUT
YOUT
AVSS
VSS
VCC
VSYNC
GND
HSYNC
IN
IN
HSYNC
GND
VSYNC
VCC
(CHASSIS)
(CHASSIS)
(CHASSIS)
(CHASSIS)
Y
PBB-Y
PRR-Y
Y
PBB-Y
PRR-Y
Y
PBB-Y
PRR-Y
IN
DVD/LD
IN
TV/SAT
MONITOR
OUT
VIDEO
COMPONENT
*
21P
15P
11P
(US,CND)
(DB1070:AEP,UK,E,CH)
(DB870:AEP,UK)
CN303
GND_A1
MBUS_TV
MBUS_DVD
SIRCS
OSD_DATA
OSD_CLK
OSD_CS
MBUS_OUT
MBUS_V1
CTRL A1
V_SW1
V_SW2
V SW3
V SW4
P/N
GND
-5V
+5V
+5V(B_UP)
V-SYNC
GND
(US,CND)
DB870:CND
/DB1070
VIDEO SELECT
INVERTER
(US,CND)
DB870:CND
/DB1070
*
(US,CND)
(DB1070:AEP,UK,E,CH)
(DB870:AEP,UK)
19P
14P
10P
CN301
+5V(BACK UP)
SYNC SEPARATE
SYNC SEPARATE
DB1070:AEP,
UK,E,CH
(DB870)
VIDEO SELECT
LINE AMP
VCC
VSS
VCC
VSS
LINE AMP
BUFFER
BUFFER
1
2
3
1
2
3
1
2
3
OSD DRIVER
VIDEO
BUFFER
CLOCK
1
2
3
COMPARATOR
1
2
3
CONTROL A1 II
MONITOR
OUT VIDEO
TV/SAT
IN VIDEO
IN VIDEO
DVD/LD
OUT VIDEO
IN VIDEO
OUT VIDEO
IN VIDEO
VIDEO 2
VIDEO 1
(DB1070:AEP,UK,E,CH)
(US,CND)
(DB1070:US,CND)
DB1070:AEP,
UK,E,CH
(DB1070:US,CND)
(DB1070:AEP,UK,E,CH)
(DB1070)
LEVEL SHIFT
LEVEL SHIFT
22
µ
H
CT303
OSD
FOR
ADJUSTMENT
CT301
OSD
CT302
OSD
(Page 33)
(Page 23)
Ver 1.2
STR-DB870/DB1070
32
32
6-17. PRINTED WIRING BOARDS – S-VIDEO/VIDEO AU Boards –
•
See page 22 for Circuit Boards Location.
JW34
C767
CN753
JW35
JW702
JW25
Q750
R767
JW15
R766
R752
JW16
C753
R769
C757
C759
C758
C755
C762
C760
JW17
JW750
R759
C754
C763
R765
R757
R754
R756
C752
R758
JW18
Q751
R750
R753
R761
JW703
C766
JW19
C761
R764
R771
IC750
JW42
JW711
JW70
JW28
C769
IC752
JW21
R770
R751
C756
R768
C770
R755
IC751
D750
JW712
JW33
R772
JW707
JW24
JW708
JW36
D751
JW26
JW23
JW43
C765
C751
C750
C772
C768
R760
JW751
JW704
JW27
JW701
CN751
JW71
JW706
JW709
JW700
JW705
JW710
C764
JW20
JW22
Q752
R773
Q753
R762
R763
R774
4
1
JW52
R204
R203
R251
R254
JW57
C213
JW53
C211
JW48
JW54
R201
JW47
JW51
R211
R255
JW49
JW50
IC201
JW46
CN201
CN202
C201
JW55
C212
JW56
R206
R256
R205
R253
R202
JW58
R252
VIDEO BOARD
CN301
CTRL S
IN
(US, CND)
J753
CTRL S
OUT
J755
CTRL S
OUT
J756
CTRL S
STATUS IN
J754
S-VIDEO
OUT
J751
S-VIDEO
IN
S-VIDEO
IN
J750
MONITOR
TU/SAT
DVD/LD
VIDEO 1
S-VIDEO
OUT
S-VIDEO
IN
J752
(US, CND)
1-681-195-
11
(11)
1
8
16
9
1
8
16
9
(US, CND)
(DB870: CND/DB1070)
(DB870)
(DB870)
E
E
E
E
1
8
16
9
(US, CND)
S-VIDEO BOARD
R
L
TV/SAT
AUDIO IN
R
L
R
L
DVD/LD
AUDIO IN
AUDIO OUT
R
L
AUDIO IN
VIDEO 2
R
L
AUDIO OUT
R
L
AUDIO IN
VIDEO 1
J202
J201
28
1
15
14
1
3
K
VIDEO 3
BOARD
CN299
1-681-096-
11
(11)
L
MAIN
BOARD
CN101
J
VIDEO 3 BOARD
CN299
VIDEO AU BOARD
H
(US, CND)
(US, CND)
A
B
C
D
E
1
2
3
4
5
6
7
8
9
10
D750
C-5
D751
C-5
IC201
C-7
IC750
C-5
IC751
C-2
IC752
C-4
Q750
C-2
Q751
C-2
Q752
C-1
Q753
C-2
• Semiconductor
Location
Ref. No.
Location
(Page 34)
(Page 42)
(Page 42)
(Page 30)
Click on the first or last page to see other STR-DB1070 / STR-DB870 service manuals if exist.