Sony STR-DB1070 / STR-DB870 Service Manual ▷ View online
STR-DB870/DB1070
26
26
6-11. SCHEMATIC DIAGRAM – DIGITAL Board (4/5) –
•
See page 46 for Waveform.
•
See page 46 for IC Block Diagram.
C1105
C1108
C1223
C1232
C1242
C1263
FB1101
IC1102
R1222
C1222
C1221
IC1221
R1231
R1221
R1242
R
1241
C1243
C1233
C1231
C1241
R1234
R1224
C1234
R1233
R1223
C1224
R1243
R1263
R1253
C1254
C1244
R1254
R1244
C1264
IC1241
C1251
R1262
R1251
C1253
C1508
C1509
R1566
IC1502
C1515
C1514
R1513
R1512
C1517
C1516
FB1502
FB1501
C1252
C1262
C1261
C1271
C1272
R1282
R1281
R1271
IC1261
C1273
C1283
R1273
R1283
C1284
C1274
R1274
R1264
R1284
C1115
R1134
IC1281
R1131
C1507
C1511
C1513
C1512
C1506
C1510
C1504
R1510
R1101
R1121
R1132
R1122
R1124
C1114
C1121
C1112
C1113
FB1102
C1106
C1107
C1104
C1102
C1505
R1504
R1503
R1502
R1501
R1509
C1503
R1508
C1502
C1501
R1505
CN1103
C1101
IC1101
IC1501
X1501
R1507
R1506
C1131
C1281
C1282
R1232
R1252
R
1272
C1103
R1261
C1110
C1109
470p
470p
180p
1800p
1800p
180p
21B
M5218AFP-T
22k
1800p
22
50V
M5218AFP
1.5k
1.5k
22k
1.5k
180p
180p
22
50V
22
50V
100k
100k
22
50V
220
220
22
50V
220
220
220
22
50V
22
50V
100k
100k
22
50V
M5218AFP
22
50V
22k
1.5k
180p
0.1
0.1
100
IDT71V016S
0.1
0.1
100
100
0.1
470
16V
16V
21A
21A
1800p
1800p
22
50V
22
50V
1800p
22k
1.5k
1.5k
M5218AFP
180p
180p
220
220
22
50V
22
50V
100k
100k
100k
100p
100k
M5218AFP
33k
0.1
0.1
47
16V
0.1
0.1
0.1
0.1
100
100
33k
33k
33k
100k
100p
22
50
50
0.1
0.1
21A
4.7
50V
50V
10 50V
4.7
50V
50V
47
16V
0.1
100
100
100
100
0
0.1
10k
0.1
0.1
100
21P
0.1
PCM1800
CXD9617R
13.5MHz
100
100
22
50V
22
50V
1800p
22k
22k
22k
10
50V
1.5k
0.1
47 16V
2C
3C
4C
5C
6C
7C
8C
9C
10C
1F
2F
1H
2H
3H
4H
2J
3J
4J
5J
6J
7J
9J
3F
11C
8J
1J
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
F13
F14
F15
F16
F17
F18
F19
F20
F21
F22
F23
F24
F25
F26
F27
F28
F29
F30
F31
F32
F33
F34
G2
G3
G4
G5
G6
I1
J1
J2
J3
J4
J5
J6
J7
K1
K2
K3
K4
K5
K6
K7
K8
K1
K2
K3
K4
K5
K6
K7
K8
G1
I7
I6
I5
I4
I2
I3
G7
F1
F2
F3
F4
F5
F7
F8
F9
F10
F11
F12
F13
F14
F15
F16
F17
F18
F19
F34
F33
F32
F31
F30
F29
F28
F27
F26
F25
F24
F23
F22
F21
F20
F6
P1
P2
GND
GND
GND
GND
GND
GND
GND
C
GND
GND
GND
S-RAM
AUDIO DSP1
BUFFER
VCC
VEE
VCC
VEE
VEE
VEE
VCC
VCC
VCC
VEE
LINE AMP
LINE AMP
LINE AMP
LINE AMP
(DB1070)
A/D CONVERTER
SOURCE-L
SOURCE-R
DB9-W/DB8-NC
DB9-SB/DB8-W
SR
SL
FRONT-R
FRONT-L
TUNER-R
TUNER-L
(Page 23)
(Page 24)
(Page 25)
(Page
27)
(Page
35)
STR-DB870/DB1070
27
27
6-12. SCHEMATIC DIAGRAM – DIGITAL Board (5/5) –
•
See page 46 for IC Block Diagrams.
CN1108
CN1102
R1798
R1797
R1795
Q1811
CN1109
Q1812
IC1807
Q1703
Q1704
C1702
Q1705
D1703
R1808
R1701
C1213
IC1202
R1280
C1210
C1211
R1220
R1230
C1207
Q1813
R1807
IC1808
FB1202
Q1814
D1803
IC1806
IC1805
C1203
C1208
C1206
C1205
C1214
R1212
FB1201
R1204
R1201
R1203
R1202
C1201
C1202
C1809
C1812
Q1810
C1212
C1204
R1260
R1270
R1250
R1240
R1805
R1806
IC1201
C1811
C1815
3P
21P
10k
10k
10k
2SB733
2P
RT1N141C
7805
RT1N141C-T
2SC2712-YG
220p
2SC2712-YG
1SS184
10k
10k
10
50V
PCM1748
8.2k
0.1
0.1
8.2k
8.2k
10
50V
2SB733
680
7805
21A
RT1N141C
1SR154
2933
NJM2391-26
0.1
10
50V
0.1
10 50V
4700p
100
21A
10k
100
100
100
330
25V
25V
0.1
470
16V
16V
4700
6.3V
6.3V
2SD1733
0.1
220
16V
16V
8.2k
8.2k
8.2k
8.2k
680
10k
PCM1604Y/2K
1D
2D
1G
2G
3G
4G
5G
6G
1I
2I
3I
4I
5I
6I
7I
8I
9I
10I
11I
2J
3J
4J
5J
6J
7J
8J
9J
1J
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D1
D2
J1
J5
J4
J3
J2
N1
J7
J6
N
5
N
2
N
4
N
3
O1
O2
O3
O4
*
*
DATA
CLK
+15V
-15V
GND
GND
D.GND
8V
-5V
FUNC-LAT
SB-RY
PRE-RY
2ND-RY
C-RY
REAR-RY
W-FR-RY
HP-RY
SP-FR-RY
HP-CONT
CD-RY
PROTECTOR
AC-MUTE
VOL-LAT
S-MUTE
+5V REGULATOR
O
G
I
D POWER
Q1811,1812
Q1703-1705
MUTING SWITCH
O
G
I
O
G
I
B+ SWITCH
+2.5V REGULATOR
+3.3V REGULATOR
+5V REGULATOR
O
G
I
D POWER
Q1813,1814
D/A CONVERTER
D/A CONVERTER
(DB1070)
SWITCH
SWITCH
* C1811,1815
1000 16V
1000 63V
(DB1070:AEP, UK)
(DB870/EXCEPT DB1070: AEP, UK)
(Page
24)
(Page 26)
(Page 25)
(Page 23)
(Page 45)
(Page 37)
(Page 37)
STR-DB870/DB1070
28
28
6-13. PRINTED WIRING BOARD – DIGITAL Board (Component Side) –
•
See page 22 for Circuit Boards Location.
R1274
R1769
R1651
R1606
R1716
R1650
R1751
C1243
R1224
R1234
R1244
R1220
C1414
R1203
C1233
D1701
R1767
R1808
R1798
R1797
R1796
R1793
R1792
R1791
R1790
R1789
R1788
R1787
X1301
R1780
R1786
R1785
R1784
R1783
R1782
R1779
R1778
R1777
R1776
R1775
R1774
R1772
R1781
R1768
R1770
R1765
R1795
R1800
R1766
R1755
R1754
R1748
R1701
R1746
R1744
R1745
R1742
R1750
R1804
R1714
R1740
R1732
R1731
R1730
R1729
R1728
R1747
R1739
R1726
R1725
R1724
R1733
R1721
R1720
R1719
R1718
R1705
R1711
R1715
R1743
R1710
IC1303
R1709
R1707
R1717
R1708
R1666
JW1103
C1711
IC1407
C1720
D1702
D1703
Q1705
Q1704
Q1703
IC1602
R1230
R1603
IC1702
IC1501
IC1601
C1428
R1402
R1409
R1405
R1407
R1434
C1108
R1403
FB1407
R1404
C1101
C1415
FB1403
R1307
R1414
R1415
R1416
Q1401
Q1402
R1419
FB1405
R1413
FB1406
R1433
X1401
C1408
R1508
R1418
R1431
R1422
R1423
R1506
R1566
R1426
R1427
R1428
R1420
R1425
R1430
C1413
Q1804
Q1812
R1809
C1315
C1313
C1320
C1420
C1316
C1319
L1201
R1406
R1417
R1308
C1308
FB1604
D1801
D1803
R1723
R1801
R1802
R1803
D1802
R1421
C1314
C1618
R1505
R1432
R1502
R1503
R1504
R1510
R1507
R1501
R1121
R1810
R1412
R1602
FB1402
C1223
R1408
R1722
R1201
R1410
IC1703
R1806
R1807
R1794
R1805
R1611
R1202
IC1202
IC1701
Q1814
IC1221
IC1281
IC1406
IC1409
IC1241
IC1261
R1284
IC1102
C1253
IC1410
IC1405
IC1408
C1273
R1254
R1124
R1264
R1122
R1131
Q1802
C1263
R1134
C1112
FB1501
R1101
IC1201
R1424
R1132
C1105
C1113
R1429
R1435
R1436
R1437
FB1101
R1612
IC1101
(AEP, UK)
IC1502
(DB1070)
DIGITAL BOARD
(COMPONENT SIDE)
E
E
E
E
(DB1070)
(AEP, UK)
(US, CND, E, CH)
E
E
(DB1070)
A
E
E
E
A
K
1
3
5
4
(US, CND)
1-681-098-
11
(11)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
A
B
C
D
E
F
G
H
I
J
D1701
D-11
D1702
F-13
D1703
G-13
D1801
B-14
D1802
B-16
D1803
I-15
IC1101
H-4
IC1102
J-3
IC1201
I-10
IC1202
I-11
IC1221
I-8
IC1241
I-7
IC1261
I-5
IC1281
I-4
IC1303
B-3
IC1405
G-2
IC1406
D-2
IC1407
F-3
IC1408
E-4
IC1409
E-4
IC1410
F-4
IC1501
F-6
IC1502
D-6
IC1601
G-9
IC1602
E-9
IC1701
F-12
IC1702
C-14
IC1703
E-13
Q1401
C-3
Q1402
C-3
Q1703
G-13
Q1704
G-13
Q1705
G-13
Q1802
B-10
Q1804
B-11
Q1812
I-14
Q1814
J-13
• Semiconductor
Location
Ref. No.
Location
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)
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