Sony STR-DB780 Service Manual

STR-DA1ES/DB780
3030
5-17. PRINTED WIRING BOARD – MAIN Board – • See page 20 for Circuit Boards Location.
IC111
IC131
IC151
IC801
IC802
IC621
IC421
IC521
IC804
IC502
IC501
28 15
1
14
IC503
IC403
IC402
IC401
28 15
114
IC602
IC601
28 15
114
IC603
1-684-329-
11
(11)
R L
FRONT
(CHASSIS)
R L
SURROUND
CENTER R L
PHONO IN
(CHASSIS)
R L
CD/SACD IN
R L
(CHASSIS)
R L
OUT IN
SUB
WOOFER
J111
MULTI CH IN
J131
J151
MD/TAPE
(DA1ES)
(DA1ES)
(DB780)
E
E
E
E
EE
E
DIGITAL
BOARD
CNS2
C
DIGITAL
BOARD
CNS1
G
4
1
5
8
4
1
5
8
4
1
5
8
7
1
8
14
85
1
4
7
1
8
14
IC805
E
17
BIAS
BOARD
CN581
N
15 1
214
17
BIAS BOARD
CN531
M
17
BIAS BOARD
CN481
Q
15
14 2
1
17
BIAS BOARD
CN431
O
1 7
BIAS BOARD
CN631
R
15
14 2
1
1
3
DC 1 BOARD
CN910
V
B
C
E
B
C
E
E
E
EE
85
1
4
8
5
1
4
15
31
1
7
-1
-2
3
1
16
BIAS BOARD
CN810
S
1
10
PRE/SPOUT
BOARD
CN449
X
12
BLU
BLU
1
2
BLK
E
14
WHT
RED
GRY
BRN
WHT
RED
BRN GRY
14
E
(CHASSIS)
PRE/SPOUT
BOARD
CN448
U
12
3
1
W
DC 2 BOARD
CN1109
DIGITAL BOARD
CN1109
D
VIDEO BOARD
CN302
J
H. P BOARD
CN849
T
(CHASSIS)
+
–
+
–
+
–
R L
SURROUND
SPEAKERS
IMPEDANCE USE 4 – 16Ω
TM501
MAIN BOARD
A
B
C
D
E
F
G
H
I
J
1 2 3 4 5 6 7 8 9 10 11 12
4
1
5
8
(DB780)
(DB780)
15 28
14 1
VIDEO. AU
BOARD
CN201
K
-2 -1
E
12
-2 -1
1
2
8
9
(DA1ES)
CENTER
JW651
JW652
JW102
JW101
BCE BCE BCE BCE BCE BCE BCE BCE BCE BCE
• Semiconductor
Location
Ref. No. Location
D790 G-12
D791 G-12
D796 G-12
D803 F-2
D804 F-2
D809 B-9
D810 F-9
D811 B-11
D812 G-2
D814 D-10
D815 E-10
D818 G-2
IC111 C-3
IC131 C-5
IC151 C-7
IC401 G-6
IC402 G-5
IC403 I-7
IC421 F-5
IC501 G-4
IC502 G-3
IC503 I-3
IC521 F-3
IC601 G-8
IC602 G-7
IC603 I-10
IC621 F-6
IC801 D-12
IC802 D-11
IC804 G-2
IC805 H-2
Q401 D-2
Q402 J-7
Q403 J-8
Q451 C-2
Q452 J-6
Q453 J-7
Q501 B-2
Q502 J-4
Q503 J-5
Q551 D-2
Q552 J-2
Q553 J-3
Q601 B-1
Q602 J-9
Q603 J-10
Q701 B-2
Q790 G-12
Q791 G-12
Q795 G-12
Q807 B-9
Q808 E-9
Q809 B-11
Q810 H-1
Q813 E-1
Q823 D-9
Q824 E-10
Q826 E-9
(Page
25)
(Page
28)
(Page
25)
(Page 34)
(Page 34) (Page 34) (Page 34) (Page 34)
(Page 42)
(Page 34)
(Page 36)
(Page 36)
(Page 26)
(Page 42)
(Page 25)
(Page 36)

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)