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Sony STR-DB780 Service Manual

Sony STR-DB780
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STR-DA1ES/DB780
2929
5-16. SCHEMATIC DIAGRAM – S-VIDEO/VIDEO 3/VIDEO.AU Boards – See page 45 for IC Block Diagrams.
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.
C856
C863 C869
C855
C852
C853
C850
C851
C867
C854
C861
C862
C
87
4
C859
C870
C858
D
85
0
D
85
1
CN853
JW851
JW850
R856
R857
R858
R859
R861
R854
R855
R860
R862
R863
J851
J850
J852
IC850 IC852
C860
C857
C202
C201
CN202
C213C211
C214
R843
R211
J201
J202
IC201
R842
R255
R253
R203
R252
R202
R251
R201
R205
R254
R256
R206
R204
R298C293
CN299
R
2
96
R
2
95
J299
EB299
C294
R299
C864
J298
C872
CN851
CN201
C212
0.1
0.1 0.1
0.1
47p
47p
47p
47p
0.1
2200p
2200p
2200p
4
7p
10
50V
10 50V
10
50V
1S
S
1
3
3
1
S
S
1
3
3
4P
75
75
75
75
75
75
75
75
75
75
NJM-2595D NJM-2595D
10
50V
0.1
2200p
2200p
3P
100p2200p
0.01
33
1k
6P
6P
TC9273-014
33
2.2k
2.2k
2.2k
1k
1k
1k
1k
2.2k
1k
1k
1k
1k
1k0.022
7P
7
5
7
5
0.022
1k
0.1
3P
0.1
11P
9P
2200p
AA1
AA2
AA3
AA4
A
A
1
A
A
2
A
A
3
A
A
4
DD1
DD2
DD3
DD4
DD5
DD6
DD7
DD8
DD9
DD10
DD11
DD12
D
D
1
D
D
2
D
D
3
D
D
4
DD
5
D
D
6
DD
7
D
D
8
D
D9
D
D
1
0
D
D
11
D
D
1
2
ZZ1
ZZ2
ZZ3
ZZ4
ZZ
1
ZZ2
ZZ3
ZZ
4
ZZ1
Z
Z2
Z
Z3
ZZ
4
Z
Z3
ZZ
4
+5V
SW1
SW2
SW3
SW4
GND
GND
GND
VIDEO3
-5V
+5.6V (BACK UP)
(CHASSIS)
(CHASSIS)
(CHASSIS)
OUT
MONITOR
S-VIDEO
Y
C
S-VIDEO
TV/SAT
IN
S-VIDEO
IN
S-VIDEO
S-VIDEO
IN
DVD/LD
VIDEO 1
OUT
VIDEO 1
Y
C
C
Y
C
Y
C
Y
C SWITCH Y SWITCH
VIDEO
Y
C
LOUT
ROUT
GND
-15V
DATA
CLK
L
R
NC
NC
F.LAT
GND
(CHASSIS)
(CHASSIS)
R
L
VDD
VSS
COM
TV/DBS
DVD/LD
V2 OUT
VIDEO2
V1 OUT
VIDEO1
LAT
GND
DAT
CLK
COM
VIDEO3
R
L
R
L
R
L
R
L
R
L
AUDIO OUT
AUDIO IN
TV/SAT
AUDIO IN
AUDIO IN
DVD/LD
AUDIO OUT
R
L
AUDIO IN
VIDEO 2
VIDEO 1
SELECTOR
VIDEO
GND
+15V
L
R
Y
C
VIDEO
GND
GND
S-VIDEO
R
L
AUDIO
VIDEO
INPUT
VIDEO 3
(CHASSIS)
Y
C
NC
(Page 33)
(Page 27)

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Sony STR-DB780 Specifications

General IconGeneral
TypeStereo Receiver
Total Harmonic Distortion0.09 %
Digital inputs2 Optical, 1 Coaxial
Weight10.5 kg
Video inputscomposite
Video outputs1 composite, 1 S-Video
Output Power100 Watts (8 Ohms, 20 Hz - 20 kHz, 0.09% THD)
Signal-to-Noise Ratio96 dB (Line in)
Input Sensitivity150 mV (Line in)

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