Sony STR-DB870 Service Manual

STR-DB870/DB1070
1515
5-2. SCHEMATIC DIAGRAM – DIGITAL Board (1/5) – • See page 38 for Waveforms. • See page 38 for IC Block Diagrams.
CN1106
CN1107
D1802
R1432
C
14
30
C1429
R1433
X1401R1431
C1426
C1424
IC1410
R1434
R1426
R1427
C1431C1423
R1430
R1428
C1425
C1808
C1317
C1320
C1318
L1201
IC1804
C1807
R1425
C1421R1420
C1422
R1437
FB1407
R1422
R1424
R
1
423
R
1
421
R1418
FB1405
R1436
R1435C1414
C1416
C1418
C1417C1412 R1411
R1413R1410
C1415
R1419C1420
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
C1307C1306
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
24.576MHz1M
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
0.110k
0.1
220
21B
100
100
100
100
100
471
100
1000.1
0.22
47
16V
0.10.1 100
4.7k33k
0.01
10k1000p
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
0.10.1
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
OI
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
75Ω
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 23)
(Page 16)
(Page 18)
(Page 17) (Page 19)
(Page 37)

Sony STR-DB870 Specifications

General

Brand	Sony
Model	STR-DB870
Category	Stereo Receiver
Language	English