Sony STR-DB780 Service Manual

STR-DA1ES/DB780
2121
5-8. SCHEMATIC DIAGRAM – DIGITAL (1/3)/V-3 OPT Boards – • See page 44 for Waveforms. • See page 45 for IC Block Diagrams.
C1127
C1123
R1123
CNP9
R1127
C1117
C1116
R1118
C1118
C1130
IC1107
IC1106
IC1105
IC1104
J1101
C1106
C1102
C1103
C1107
R1105
R1106
C1104
C1129C1111 C1113
R1111
R1112
FB1105
R1114
R1108
R1100
C1110
C1109
X1101
R1124
D1101
R1102
R1110
R1113
C1513
C1515
C1514
R1508
R1509
R1104
C1101
C1510
C1509
C1508
C1507
R1101
C1551C1501
C1115R1109
R1501
R1502
R1503
R1504
R1505
R1506
C1502
R1551
R1552
R1553
C1503
C1504
IC1502 IC1552
IC1503
C1506
C1505
C1124
C1114
R1117
R1119
D1001
C1528
C1527
R1519
R1520
R1521
C1526
R1518
C1525
R1517
C1524
R1516
C1523
CNS1
IC1102
C1105
C1108
C1131
R1122
C1122
C1121
C1120
R1120
R1121
C1126
IC1103
R1115 C1112
IC1501
D1502
R1507
R1557
C1309
C1311 C1310
C1913
C1914
C1227C1916
C1915
C1221
R1705
R1711
R1710
IC1902
R1116
FB1101
FB1104
JR1104
JR1103
FB1501
FB1102
D1501
C1512
FB1502
R1554
R1555
R1556
C1552
JR1123
CNS7
IC1905
IC1101
CN289
C289
R289
FB1109
R1107
C1119
IC289
JR1116
R1314
R1364
TU301
0.1
0.1
100
3P
100
0.1
470
10V
560k
1000p
0.1
TOTX141L
TORX141L
TORX141L
TORX141L
1P
0.1
47
16V
0.1
0.01
4.7k
33k
0.01
1000p0.1 0.1
1k
100
100
100
1M
18p
18p
12.288MHz
100
1SS352-TPH3
10k
1k
1k
0.1
10
50V
0.1
100k
100
100
0.1
47 16V
0.1
0.1
10 50V
10k
0.00150.0015
47p100
330
10k
10k
330
15k
68k
22
50V
330
10k
10k
0.1
10
50V
4565DD 4565DD
7805
470
16V
0.1
0.1
1p
1k
22k
1SS352
-TPH
22 50V
22 50V
100k
100k
100k
22 50V
100k
22 50V
100k
22 50V
100k
22 50V
21P
TC7WU04F
47
16V
0.1
100p
100
0.1
0.1
0.1
100
100
10
50V
TC74ACT153AF
10k 0.01
AK4527
1SS367
-T3
5.6k
4.7k
0.1
0.1 0.1
0.1
47
16V
0.10.1
47
16V
0.1
100
100
100
M5F7810L
75
0
0
1SS367
-T3
1
330
15k
68k
22
50V
0
2933
LC89056W-E
3P
0.1
100
5.6k
22
50V
TORX141PL
0
0
0
A1
A2
A3
A4
A5
A6
A7
B1
B
2
B3
BB1
BB2
BB3
BB4
BB5
BB6
BB7
DD3
DD4
DD5
DD1
DD2
FF3
FF4
FF5
FF6
FF11
FF10
BB8
BB9
BB10
BB11
FF2
FF1
BB12
FF8
FF7
FF9
LIN-
LIN-
LIN+
LIN+
RIN+
RIN+
RIN-
RIN-
II1
II2
II3
II4
II5
II6
II7
II8
II1 II2
II3
II4
II5
II6
II7
II8
K1
K2
K3
K4
K5
K6
K7
K8
K9
K10
GND
OPTICAL DIN
+3.3V
L
GND
R
GND
GND
GND
GND
GND
GND
LS
RS
C
SB
GND
GND
W
T.L
L.O
R.O
GND
T.R
(1/3)
DVD/LD
DVD/LD
TV/SAT
COAXIAL IN
MD/TAPE
ASSIGNABLE
CD/SACD
IN
OPTICAL
MD/TAPE
OPTICAL
OUT
IN
OPTICAL
IN
OPTICAL
DIGITAL
DIGITAL OPTICAL
RECEIVER
DIGITAL OPTICAL
RECEIVER
DIGITAL OPTICAL
RECEIVER
DIGITAL OPTICAL
TRANSCEIVER
INTERFACE RECEIVER
DIGITAL AUDIO
DIGITAL SELECTOR
VCC
BUFFER
GND
INVERTER
VCC
GND
VCC
GND
BUFFER
AM
ANTENNA
COAXIAL
THE ASSEMBLED
BLOCK
∗ SUPPLIED AS
(DB780:AEP,UK)
15P
11P(EXCEPT DB780:AEP,UK)
(DB780:AEP,UK)
O
G
I
+3.3V REGULATOR
O
G
I
+10V REGULATOR
(DB780:AEP,UK)
A/D,D/A CONVERTER
G
OI
+5V REGULATOR
GND
3.3V
V3 OPT
DIGITAL
(OPTICAL)
DIGITAL OPTICAL RECEIVER
TUNER UNIT
FM 75Ω
(Page 31)
(Page 23)
(Page 22)

Sony STR-DB780 Specifications

General

Type	Stereo Receiver
Total Harmonic Distortion	0.09 %
Digital inputs	2 Optical, 1 Coaxial
Weight	10.5 kg
Video inputs	composite
Video outputs	1 composite, 1 S-Video
Output Power	100 Watts (8 Ohms, 20 Hz - 20 kHz, 0.09% THD)
Signal-to-Noise Ratio	96 dB (Line in)
Input Sensitivity	150 mV (Line in)