Sony STR-DB870 Service Manual

STR-DB870/DB1070
2525
5-12. SCHEMATIC DIAGRAM – S-VIDEO/VIDEO AU Boards – • See page 38 for IC Block Diagrams.
CN201
C213C211
R211
CN202
C212
C201
G1
R201
R202
R251
R252
R203
R253
R204
R254
R255
R206
R205
R256
C202
G2
J202
CN753
D750
C769
C772
R771R770
R774
R773R767
R766
R768
R769
C765
C768
Q750
C766
R764
R765
R762
C764
R763
C758
R754
R755
R756
R757
C755
C759
C756
C767 C763
R760
R761
C760
C757
R759
R758
C753
C752
C762
C754
C761
R753
R750
R751
R752
J201
D751
CN751
IC752IC750
JW750
JW751
IC751
R772
Q753
Q752
Q751
J756
J755
J754
J753
J751
J750
J752
IC201
C770
C750
C751
9P
100p2200p
1k
3P
2200p
2200p
1k
1k
1k
1k
2.2k
2.2k
1k
1k
2.2k
1k
2.2k
1k
2200p
6P
4P
1SS133T
0.1
0.1
7575
100
10k10k
6.8k
6.8k
10k
470p
470p
BA1A4M
47
16V
4.7k
10k
75
0.1
75
10
50V
75
75
75
75
0.1
10
50V
0.1
0.1 0.1
75
75
10
50V
0.1
75
75
47p
47p
2200p
2200p
2200p
1k
1k
1k
1k
6P
1SS133T
NJM-2296D-NJM-2296D-
NJM-2145D-
100
BN1A4M
BN1A4M
BN1A4M
TC9273-014
10
50V
47p
47p
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
A
9
A
1
0
A
1
1
A
1
2
*
C
C
Y
C
Y
Y
+5V
SW1
SW2
SW3
SW4
SIRCS OUT
MBUS-TV
MBUS-STATUS-OUT
MBUS-V1
VIDEO3
GND
GND
GND
MBUS-DVD
VIDEO3(Y)
VIDEO3(C)
-5V
VCC
OUT1
IN4
IN3
IN2
O3-1
O3-2
O3-3
O2-3 O2-2 O2-1
NC
IN1
INH2 INH1
GND
MONITOR-C/IN
MONITOR-C/OUT
MONITOR-Y/IN
MONITOR-Y/OUT
LOUT
ROUT
GND
15V
-15V
LAT
DATA
CLK
L
R
NC
N
C
VIDEO3
R
L
VDD
VSS
CO
M
T
V/DB
S
D
V
D/LD
V2 OUT
VIDE
O
2
V1 OU
T
VIDEO
1
L
AT
G
ND
DAT
C
LK
CO
M
V
IDEO
3
C
Y
C
Y
(CHASSIS)
(CHASSIS)
(CHASSIS)
(CHASSIS)
(CHASSIS)
+5V(BACK UP)
DB870:CND
/DB1070
(US,CND)
VIDEO3
*
(US,CND)
(DB1070:AEP,UK,E,CH)
(DB870:AEP,UK)
19P
14P
10P
CN751
Y SWITCHC SWITCH
(DB870)
CONTROL S
I/O SWITCH
Q750,751
BUFFER BUFFER
Q752,753
IN
MONITOR
CTRL S
CTRL S
TV/SAT
STATUS IN
CTRL S
DVD/LD
OUT
CTRL S
OUT
VIDEO 1
MONITOR
S-VIDEO
OUT
S-VIDEO
TV/SAT
IN
S-VIDEO
IN
DVD/LD
S-VIDEO
OUT
S-VIDEO
IN
VIDEO 1
L
R
L
R
L
R
L
R
L
R
L
R
TV/SAT
AUDIO IN
AUDIO IN
DVD/LD
AUDIO OUT
AUDIO IN
VIDEO 2
AUDIO OUT
AUDIO IN
VIDEO 1
VIDEO
SELECT
(US,CND)
(DB870)
(Page 23)
(Page 35)
(Page 29)
(Page 35)

Sony STR-DB870 Specifications

General

Brand	Sony
Model	STR-DB870
Category	Stereo Receiver
Language	English