Sony STR-DB870 Service Manual

STR-DB870/DB1070
3434
5-21. PRINTED WIRING BOARDS – H.P/MUTING/POWER/SP/VIDEO 3 Boards – • See page 14 for Circuit Boards Location.
CP401
CN502
R583
JW102
JW103
C453
JW110 JW111
R834
C471
C421
C481
C653C603
C436
R821
JW112
R433
R733
R683
R633
C403
R431
C431
R481
JW105
CN403
RY810 RY809
RY808
RY802
C503
R533
C553
JW107
R483
JW113
JW150
R1803
R1802
R1801
JW62
S1803
S1802
RV1801
S1801
JW65
JW64
JW63
D1801
CN1801
CN749
EB749
CN1701
C1701
S1704
IC1701
S1702
S1703
R1704
R1701
R1702
JW70
JW69
R1703
C293
C294
JW68
JW67
JW66
R299
R298
EB299
CN299
1-681-105-
11
(11)
T
MAIN
BOARD
CN803
I
MAIN
BOARD
CN805
41
1
11
(AEP, UK, E, CH)
–2
–1
–1 –2 –1 –2 –1 –2
– –
+
+
FRONT
SPEAKERS
IMPEDANCE USE 4-16Ω
TM502
SP BOARD
SUB WOOFER
SUB WOOFER
L R L R L R
SURROUND BACK SURROUND FRONT
J401
J402
J701
CENTER
PRE OUT
J403
(DB1070)
(DB870)
AEP, UK,
E, CH
MUTING BOARD
Y
DISP BOARD
CN1603
81
AUDIO SPLIT
D1801, S1802
FUNCTION
MUTING
INPUT MODE
RV1801
ROTARY ENCODER
31
1-681-100-
11
(11)
H. P BOARD
1
125
7
4
6
3
5
S
MAIN BOARD
CN801
(CHASSIS)
PHONES
J749
1-681-103-
11
(11)
POWER BOARD
11
1
X
DISP
BOARD
CN1602
DISPLAY
I/1
DIMMER
31
S1701
SPEAKERS
S1702 – 1704
OFF T ON
1-681-101-
11
(11)
VIDEO 3 BOARD
(CHASSIS)
71
K J
VIDEO AU
BOARD
CN202
S-VIDEO
BOARD
CN753
1-681-104-
11
(11)
S-VIDEO
VIDEO 3 INPUT
J299
R L
AUDIO VIDEO
J298
S1801 – 1803
(Page 32)
(Page 26) (Page 26)
(Page 24)
(Page 32)
(Page 24)
(Page 26)

Sony STR-DB870 Specifications

General

Brand	Sony
Model	STR-DB870
Category	Stereo Receiver
Language	English