Sony STR-DB870 Service Manual

STR-DB870/DB1070
3535
VIDEO AU
J402
R433
R483
R533
R583
R683
R633
R733
R834
CN403
C481
R481 R431 C431
CN502
CN1701
R1703
R1701
R1702C1701
R1704
CN1801
R1803
R1801 R1802
EB749
J749
CN749
CN299
C294
C293
EB299
J299
J298
R298
R299
D1801
S1801 S1802 S1803
RV1801
TM502
RY802
C503
C553
C403
C453
C603
C653
R821
RY809
RY810
RY808
C436
C421C471
J401
J403
J701
IC1701
S1703 S1702
S1704
S1701
4P
1k
1k
1k
1k
1k
1k
1k
10
4P
470p
10 10 470p
11P
11P
22k
100
1047
16V
1k
8P
220
1k 2.2k
5P
7P
2200p
2200p
3P
1k
1k
SEL5821A
22 50V
22 50V
22 50V
22 50V
22 50V
22 50V
10
100p
100p
50V
100p
50V
4P
1P
2P
NJL63H400A
L
R
SL
SW
SR
R
L
SB
C
GND
RY+
PRE,RY-
FSP,RY-
R
L
GND
GND
(CHASSIS)
H.P R
GND
H.P L
H.P GND
(CHASSIS)
GND
GND
(CHASSIS)
L
R
AUDIO
VIDEO
S-VIDEO
VIDEO 3
INPUT
C
Y
VIDEO3(C)
VIDEO3(Y)
VIDEO3
HP-CONT
1
2
3
4
5
6
7
AUDIO SPLIT
AUDIO SPLITINPUT MODE MUTING
FUNCTION
ROTARY ENCODER
LR
FRONT
SPEAKERS
IMPEDANCE
USE 4-6Ω
(AEP,UK,E,CH)
-1
-2
-1
-2
-1
-2
-1
-2
L
R
L
R
FRONT
SURROUND
L
R
SUB WOOFER
SUB WOOFER
CENTER
(DB870)
(DB870)
(DB1070)
BACK
SURROUND
PRE OUT
VCC
GND
OUT
REMOTE CONTROL
RECEIVER
DISPLAY DIMMER
SPEAKERS
ONOFF
PHONES
5-22. SCHEMATIC DIAGRAM – H.P/MUTING/POWER/SP/VIDEO 3 Boards –
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.
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(Page 25)
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Sony STR-DB870 Specifications

General

Brand	Sony
Model	STR-DB870
Category	Stereo Receiver
Language	English