Sony STR-DB780 Service Manual

STR-DA1ES/DB780
3939
5-26. SCHEMATIC DIAGRAM – DISPLAY Board – • See page 45 for IC Block Diagram.
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque 0 sont
critiques pour la sécurité. Ne les remplacer que
par une pièce portant le numéro spécifié.
C1603
R1601R1602
C1575
Q1601
R1621R1619R1617R1615R1671
Q1602Q1603Q1604Q1599Q1607
R1623
R1622R1620R1618R1616R1624R1608
CNP662
CNS663
CNP661
IC1711
C1711
R1712 R1711
C
1
61
3
C
161
2
R1673
R1674
C
1
6
1
1
C
1
6
1
0
C
1
6
1
4
C
1
6
15
R1676C1660C1659
JW121
C1658
C1662
IC1602
C1666
C1667
R1677
C1538
CNP660
C1648
C1668
FL1601
D1612 D1603D1599
D1604
D1602 D1601
RV1601
IC1600
0.1
11
0.1
2SC2785TP
-HFE
2.2k2.2k2.2k2.2k2.2k
2SC2785TP
-HFE
2SC2785TP
-HFE
2SC2785TP
-HFE
2SC2785TP
-HFE
2SC2785TP
-HFE
2.2k
220220220220220220
13P
31P
8P
NJL64H400A
47
16V
10 100
0
.1
0
.1
100
100
0
.1
0
.1
0
.1
0
.1
47k100p220p
0.1
220p
74ACT08
0.1
10
50V
82k
0.1
11P
0.1
100
50V
SEL5821A
-TP15
SEL5821A
-TP15
SEL5821A
-TP15
SEL5821A
-TP15 SEL5821A
-TP15
SELS5B23CTP15
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
P15
P16
1G
3G
4G
5G
6G
7G
8G
9G
10G
12G
P11
P10
P9
P8
P7
P6
P5
P4
P2
P1
F2
P3
11G
P12
P13
P14
P15
P16
DIN
DIN
CLK
CLK
2G
9G
8G
7G
6G
5G
4G
3G
2G
1G
10G
11G
12G
F1
DIN
CLK
STB
STB
F1
F2
STB
CLK
DIN
AA1
AA2
AA3
AA4
AA5
AA6
AA1
AA2
AA3
AA4
AA5
AA6
B1
B2
B3
B4
B1
B2
B3
B4
C1
C2
C3
C4
C1
C2
C3
C4
C5
C5
C6
C7
C6
C7
C8
C9
C8
C9
STB
A/D(3)
A/D(2)
A/D(0)
A/D(1)
JOG(-)
JOG(+)
GND
+5V
SETUP/NAME
LEVEL/SURR
EQ
SELECT LED
GND
GND
+5V
MODE LED
DCS LED
2CH LED
F1
F2
GND
+5V
STB
CLK
DIN
POWER SW.
VOL(+)
VOL(-)
JOG(+)
JOG(-)
SIRCS
A/D(3)
A/D(2)
A/D(1)
A/D(0)
SP SW.
GND
GND
LED LATCH
GND
+5V
POWER SW.
SIRCS
SP SW.
A/D(1)
A/D(1)
A/D(3)
+3.3V(STBY)
A/D(3)
+3.3V(STBY)
AUTO DEC LED
MULTI LED
INPUT LED
-34V
FUNC(A)
FUNC(B)
FUNC(A)
FUNC(B)
FLUORESCENT INDICATOR TUBE
MODE
INPUT
MODE
MULTI
CH
DIRECT
2CH ST AUTO DEC.
CINEMA
SOUND
DIGITAL
LED
DRIVE
LED
DRIVE
LED
DRIVE
LED
DRIVE
LED
DRIVE
LED
DRIVE
FLUORESCENT
INDICATOR TUBE
DRIVER
ROTARY
ENCODER
REMOTE CONTROL
RECEIVER
GOV
LEVEL SHIFT
MASTER VOLUME
MODE LED
µPD16315
(Page 41)
(Page 41)
(Page 41)
(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)