DOWNLOAD Sony STR-DB1070 / STR-DB870 Service Manual ↓ Size: 8.4 MB | Pages: 92 in PDF or view online for FREE

Model
STR-DB1070 STR-DB870
Pages
92
Size
8.4 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
str-db1070-str-db870.pdf
Date

Sony STR-DB1070 / STR-DB870 Service Manual ▷ View online

21
STR-DB870/DB1070
6-7.
NOTE  FOR  PRINTED  WIRING  BOARDS  AND  SCHEMATIC  DIAGRAMS
Note on Printed Wiring Board:
X
: parts extracted from the component side.
Y
: parts extracted from the conductor side.
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
C
B
These are omitted.
E
Q
B
These are omitted.
C
E
Q
B
These are omitted.
C
E
Q
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted.  pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in 
 and 
1
/
4
 
W or less unless otherwise
specified.
f
: internal component.
2
: nonflammable resistor.
C
: panel designation.
A
: B+ Line.
B
: B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: TUNER
J
: AUDIO IN (ANALOG)
c
: AUDIO IN (DIGITAL)
E
: VIDEO IN
• Abbreviation
CH
: Chinese model
CND : Canadian model
E2
: 120 V AC area in E model
E3
: 240 V AC area in E model
KR
: Korean model
MY
: Malaysia model
SP
: Singapore model
TW
: Taiwan model
Note:
The components identi-
fied by mark 
0
 or dotted
line with mark 
0
 are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque 
0
 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
22
STR-DB870/DB1070
• Circuit Boards Location
DC2 board
SP board
S-VIDEO board
H.P board
DIGITAL board
BIAS board
MUTING board
SW board
POWER board
VIDEO board
VIDEO 3 board
AC board
VIDEO AU board
V.SWITCH board
(120 V AC area and 240 V AC area in E models)
TUNER
MAIN board
DISP board
DC1 board
STR-DB870/DB1070
23
23
6-8.
SCHEMATIC  DIAGRAM  – DIGITAL Board (1/5) –
 See page 46 for Waveforms.
 See page 46 for IC Block Diagrams.
CN1106
CN1107
D1802
R1432
C
14
30
C1429
R1433
X1401
R1431
C1426
C1424
IC1410
R1434
R1426
R1427
C1431
C1423
R1430
R1428
C1425
C1808
C1317
C1320
C1318
L1201
IC1804
C1807
R1425
C1421
R1420
C1422
R1437
FB1407
R1422
R1424
R
1
423
R
1
421
R1418
FB1405
R1436
R1435
C1414
C1416
C1418
C1417
C1412
R1411
R1413
R1410
C1415
R1419
C1420
R1417
R1416
IC1803
R1804
D1801
C1316
IC1303
C1319
C1315
C1313
IC1301
IC1802
R1803
C1802
C1413
R1414
R1415
IC1406
FB1403
R1409
C
14
10
C1409
R1404
FB1404
R1405
R1403
C1411
FB1401
FB1402
Q1802
R1801
R1802
IC1801
C1309
C1310
IC1302
R1304
C1308 R1303
C1307
C1306
R1407
R1406
C1403
R1408
C1404
C1427
R1402
C1428
IC1409
R1429
FB
1
406
IC1407
Q1401
Q1402
Q1804
Q1803
Q1801
C1314
R1308
CN1105
R1401
C1406
CN1104
C1801
R1809
IC1402
IC1401
IC1403
C1405
J1401
R1412
C1419
C
1402
C140
8
IC1405
IC1408
IC1404
C1401
X1301
R1307
9P
7P
1SS352
100
15p
15p
150
24.576MHz
1M
47
16V
0.1
TC7WU04F
100
100
1k
220
16V
0.1
100
4.7k
100p
470
16V
10
50V
0.1
10
50V
0
2933
220
16V
100
0.1
10k
0.1
220
21B
100
100
100
100
100
471
100
100
0.1
0.22
47
16V
0.1
0.1
100
4.7k
33k
0.01
10k
1000p
10k
10k
2905
10k
1SR154
330p
BU1924F
1000p
0.1
47p
7812
7805
680
470
16V
0.1
10k
10k
TC74HC153
21A
22k
470
1
6V
0.1
560k
21A
100
1k
10
50V
21A
21A
RT1N141C
680
10k
7805
100
16V
100
16V
2933
39k
0.1
39k
0.1
0.1
100
100
0.1
100
0.1
0.1
100
0.1
TC7WH74FU
0
2
1B
TC7WH157FU
2SC2712
2SC2712
RT1N141C
2SB733
2SB733
82p
100
15P
75
22 50V
100
16V
10k
TORX178
TORX179
TORX178
0.1
1P
5.6k
0.1
0.1
1p
TC7WU04F
LC89056W-E
TOTX178A
0.01
4.332MHz 2.2k
1A
1
B
2
B
3
B
4
B
5
B
6
B
7
B
8
B
9
B
10B
11B
12B
13B
14B
15B
16B
17B
18B
19B
2C
3C
4C
5C
6C
7C
8C
9
C
10C
1
D
2
D
11C
H1
H2
H4
H5
H6
H7
L1
L2
L3
L4
L5
L6
L7
L8
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
B1
B2
B3
B4
B5
B6
B7
B8
P1
P2
H3
*
PW_RY
GND
STOP
+32V
FL1
FL2
GND_A1
MBUS_TV
MBUS_DVD
SIRCS
OSD_DATA
OSD_CLK
OSD_CS
GND
MBUS_OUT
MBUS_V1
CTRL A1
V_SW1
V_SW2
V SW3
V SW4
P/N
GND
V.POWER
SUB T
VDD
GND
RESET
MD0
MD2
SIN1
SOT1
-5V
+5V
(CHASSIS)
+8V
GND
VCC
COUNTER
DIGITAL AUDIO
INTERFACE RECEIVER
CLOCK
SELECT
GND
VCC
INVERTER
DIGITAL SELECT
INVERTER
INVERTER
+3.3V REGULATOR
+5V REGULATOR
I
G
O
I
G
O
B+ SWITCH
D POWER
ON/OFF
+5V REGULATOR
I
G
O
+3.3V REGULATOR
I
G
O
I
G
O
I
G
O
+12V REGULATOR
+5V REGULATOR
B+ SWITCH
ON/OFF
V POWER
RDS DECODER
T2
T1
VSS2
VDD2
XI
XO
NC
RCLK
CMP
VSS3
VSS1
VDD1
MUX
VREF
RDAT
QUAL
(AEP,UK)
*
CN1104
21P
15P
11P
(US,CND)
(DB1070:AEP,UK,E,CH)
(DB870:AEP,UK)
AM
THE ASSEMBLED
BLOCK
*SUPPLIED AS
STEREO
TUNED
R CH
MUTING
GND
L CH
FM DET OUT
VDD 12V
VDD 3.3V
FMIF OUT
GND
DO
CLOCK
DATA
CE
*FM/AM TUNER UNIT
FM
75
COAXIAL
+5V(B_UP)
V-SYNC
(US,CND)
DB870:CND
/DB1070
DIGITAL
OPTICAL RECEIVER
DIGITAL
OPTICAL RECEIVER
DIGITAL
OPTICAL RECEIVER
DIGITAL
DVD/LD
OPTICAL
IN
OPTICAL
IN
TV/SAT
OPTICAL
IN
MD/DAT
DVD/LD
IN
COAXIAL
OSC
OPTICAL
IN
MD/TAPE
(DB870)
(DB1070)
OPTICAL
MD/DAT
OPTICAL
MD/TAPE
(DB870)
(DB1070)
OUT
OUT
TRANSCEIVER
OPTICAL
DIGITAL
(Page 31)
(Page 24)
(Page 26)
(Page 25)
(Page 27)
(Page 45)
STR-DB870/DB1070
24
24
6-9.
SCHEMATIC  DIAGRAM  – DIGITAL Board (2/5) –
 See page 46 for Waveform.
R1611
R1612
FB1604
R1608
C1615
C1613
C1612
C1617
C1618
FB1603
FB1602
C1610
R1610
R1605
C1611
R1667
R1653
R1655
R1654
R1656
R1657
R1651
R1650
R1666
C1608
C1602
R1607
C1601
R1609
R1606
R1601
C1603
R1602
C1604
R1603
C1605
C1609
C1606
C1607
C1614
FB1601
C1616
IC1602
IC1601
X1601
100
220
21B
0
0.1
47
16V
0.1
470
16V
0.1
21A
21A
0.1
100
100
0.1
0
100
100
100
100
100
100
100
100
0.1
0.1
100
0.1
100
4.7k
100
0.1
100
0.1
10k
0.1
0.1
0.1
0.1
0.1
471
0.1
IDT71V016S
CXD9616R
13.5MHz
1A
1E
2E
3E
4E
5E
6E
7E
8E
1F
2F
1G
2G
3G
4G
5G
6G
3F
E1
E2
E3
E4
E5
E15
E16
E17
E18
E19
E20
E21
E22
E23
E24
E25
E26
E27
E28
E29
E30
E31
E32
E33
E34
E1
E2
E3
E4
E5
E6
E7
E8
E9
E10
E11
E12
E13
E14
E15
E16
E17
E18
E19
E20
E21
E22
E23
E24
E25
E26
E27
E28
E29
E30
E31
E32
E33
E34
I2
I3
I4
I5
I6
I7
M1
M2
O1
O2
O3
O4
E6
E7
E8
E10
E11
E12
E13
E14
I1
M3
E9
S-RAM
AUDIO DSP2
(Page 25)
(Page 23)
(Page 27)
(Page 26)
Page of 92
Display

Click on the first or last page to see other STR-DB1070 / STR-DB870 service manuals if exist.