Schematic Diagram - Digital Board (1/5); Schematic Diagram - Digital Board (2/5) - Sony STR-DB1070 - Fm Stereo/fm-am Receiver Service Manual

5-2. SCHEMATIC DIAGRAM – DIGITAL Board (1/5) – •
*FM/AM TUNER UNIT
STEREO
TUNED
MUTING
P1 C1306 C1307
R CH 0.1
GND
P2
AM L CH
FM DET OUT
VDD 12V
VDD 3.3V
FMIF OUT
FM
75 GND
COAXIAL
DO
CLOCK
DATA
CE
CN1105
15P * CN1104
21P (US,CND)
15P (DB1070:AEP,UK,E,CH)
*SUPPLIED AS
11P (DB870:AEP,UK)
THE ASSEMBLED
BLOCK
CN1104
* (US,CND)
MBUS_OUT
A1
MBUS_TV
A2
MBUS_DVD
A3
MBUS_V1 A4
SIRCS
A5
+5V(B_UP) DB870:CND
/DB1070
OSD_DATA A6
OSD_CS A7
OSD_CLK
A8
V-SYNC
A9
A10
P/N
A11
GND_A1 A12
(Page 23) CTRL A1 R1809 10k
A13
V_SW1
A14
V_SW2
A15
V SW3 A16
V SW4
-5V
+5V
GND
GND
DIGITAL
OPTICAL RECEIVER
IC1401 R1406
TORX179
DVD/LD
OPTICAL
IN
DIGITAL
OPTICAL RECEIVER
IC1402 R1407
TORX178
TV/SAT
OPTICAL
IN
(DB870)
MD/TAPE
DIGITAL
OPTICAL
OPTICAL RECEIVER
IN
IC1403 R1408
TORX178
DIGITAL
MD/DAT
OPTICAL
IN
(DB1070)
(DB870)
DIGITAL
OPTICAL
MD/TAPE
TRANSCEIVER
OPTICAL
IC1404
OUT
TOTX178A
MD/DAT
OPTICAL
OUT R1402
(DB1070)
J1401
1P
DVD/LD
COAXIAL
IN
C1401 R1401
0.01
(CHASSIS)
•
See page 38 for Waveforms. See page 38 for IC Block Diagrams.
B1
B2
B3
0.1
R1304
39k
C1308 R1303
0.1 39k
+12V REGULATOR
O I
G
C1309
C1315
B4 100 IC1301
0.1
16V 7812
C1313 47p
B5 C1310 C1314
100 82p
B6 R1307
16V X1301
4.332MHz 2.2k
B7
G
O I
B8 R1308 100
IC1302
2933
+3.3V REGULATOR
+5V REGULATOR
IC1801
7805
O I
G
Q1801
2SB733
B+ SWITCH
+5V REGULATOR
IC1802
7805
O I
R1801 R1802
G
680 10k
Q1803
2SB733
B+ SWITCH
R1804
R1803
10k
680
Q1802
RT1N141C
V POWER
Q1804
ON/OFF RT1N141C
C1801 C1802
D POWER
100 470
16V 16V ON/OFF
R1417
FB1402
FB1401
21A
21A
C1411
R1414
10 C1413
10k
50V 0.1
IC1406
TC74HC153
100
R1415
10k Q1402
2SC2712
INVERTER
Q1401
2SC2712
INVERTER
100
C1403
0.1
DIGITAL SELECT
R1412
5.6k
FB1403
21A
C1415
0.01
R1410 R1413
33k 4.7k
100
R1403 R1404
1k 560k R1409
C1404 22k C1412 R1411
0.1 0.1 100
C1416
0.22
C1409
0.1
C1414
0.1
FB1404
21A
INVERTER
C1405
IC1405
0.1
TC7WU04F
CLOCK
100 C1427
SELECT
0.1
IC1407
TC7WH157FU
R1405
C1406
100
22 50V
75
R1429
0
(Page 16)
RDS DECODER
IC1303 BU1924F
L1201
0
T2 CMP
C1319
1000p
T1 VSS3
VSS2 VSS1
C1317
10
VDD2 VDD1
50V
C1320
XI MUX
0.1
C1318
XO VREF
10
50V
NC RDAT
RCLK QUAL
C1316
330p
(AEP,UK)
D1801
1SR154
IC1803 IC1804
2905 2933
I O I O
G G
C1807 C1808
220 470
16V 16V
+5V REGULATOR +3.3V REGULATOR
10k
R1416
10k
R1425
100
C1419 C1420 R1419 R1420 C1421 C1425
0.1 1000p 10k 10k 0.1 100p
R1428
4.7k
DIGITAL AUDIO
INTERFACE RECEIVER
IC1408
C1423 C1431
LC89056W-E
0.1 220
16V
C1417
0.1
C1418
47
16V
R1426
100
R1435
100
C1422 0.1
R1436
R1437
100
220
R1424 FB1407
OSC
100 21B
R1422
100
FB1405
471
R1418 100
(Page 18)
15 15
R1430
100
H3
H2
R1427
1k
COUNTER
IC1409
TC7WH74FU
C1428
0.1
R1432
100
R1434
100
GND
R1433 150
C1429
15p
VCC
R1431 X1401
C1426 1M 24.576MHz
IC1410
47 C1424
TC7WU04F
16V 0.1
STR-DB870/DB1070
CN1106
9P
SUB T
L1
V.POWER
PW_RY
L2
+8V
GND
STOP
L3
+32V
D1802
1SS352 FL2
(Page 37)
FL1
MD2
L4
MD0
L5
RESET
L6
GND
VDD
SIN1
L7
SOT1
L8
CN1107
7P
(Page 17) (Page 19)