Schematic Diagram - Standby Dcdc Board - Sony STR-DH800 Service Manual

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5-31. SCHEMATIC DIAGRAM - STANDBY DCDC Board -

1
2
STANDBY DCDC BOARD
A
B
B920
(CHASSIS)
NO904
6P
CL906
C
+6.2V
1
T
NC
2
CL907
D_GND
3
HDMI
D_GND
4
BOARD
CL908
(2/2)
+4V
5
CN3507
+4V
6
(Page 31)
NO903
12P
D
JL900
+6.2V
1
NC
2
+6.2V
3
DGND
4
T E
L
1 3 9 4 2 2 9 6 5 1 3
JL901
D
DGND
5
JL902
+4V
6
DIGITAL
+4V
7
BOARD
JL903
(3/4)
POWER RELAY
8
JL904
CN2000
E
STOP
9
(Page 22)
JL905
STBY_Supply(+5V)
10
JL906
STBY_GND
11
STBY_GND
12
F
G
H
w w w
STR-DH800
• See page 42 for IC Block Diagrams.
3
4
5
IC B/D
IC960
+4V REGULATOR
IC960
5
4
3
2
1
SI-8033S
L961
CL902
100uH
R960
680
R961
470
D960
RB051LA-40TR
C919
C960
R962
C961
C962
0.47
1000
1.5k
0.1
1000
16V
35V
IC901
+9V REGULATOR
IC901
KIA7809API-U/PF
9.1
O
2
C916
G
47
3
25V
D910
UDZSUSTE-176.2B
D900
10EDB40-TB5
IC900
+5V REGULATOR
IC900
BA50BC0T
5
OUT
VCC
8.3
2
1
GND
R912
R904
3
22k
2.2k
Q905
2SC3052EF-T1-LEF
2SC3052EF-T1-LEF
0
AC OFF DETECT
0.6
R903
10k
R910
3.3k
C900
C901
C920
R905
470
0.1
10
10k
25V
50V
x
a o
y
.
i
http://www.xiaoyu163.com
6
7
8
IC B/D
IC950
+6.2V REGULATOR
IC950
5
4
3
2
1
SI-8050S-LF1101
L951
100uH
L963
CL901
100uH
L952
R950
100uH
220
R952
1k
D950
RB060M-30
C918
C950
R951
C951
C952
0.47
1000
330
0.1
1000
16V
35V
15.9
I
1
C915
0.47
Q
Q
3
7
6
RY900
D907
MA2J1110GLS0
R920
4.7
T3.15AL 250V (AEP, UK)
Q911-913
REGULATOR
Q912
2SB734-T-34
8.3
16.3
15.7
R913
R914
Q910
3.3k
10k
RELAY DRIVE
0.1
0.8
0.1
15.7
2.9
0.1
C921
C922
2200
2200
25V
25V
Q911
Q913
RT1N241C-TP-1
RT1N241C-TP-1
u 1 6 3
41
41
2
4
8
9
9
9
10
11
F901
3.15A
D908
250V
D5SBA20-4003
~
C912
C913
~
6800
0.22
25V
100V
C911
C914
1000
0.22
25V
100V
F902
3.15A
250V
3
1
5
1
5
0
8
9
FH900
FH901
(US, CND)
T910
SUB POWER
TRANSFORMER
F900
5
8A 125V (US, CND)
6
4
7
3
8
2
9
1
10
11
D903
1SR154-400TE-25
TH921
T911
SUB POWER
TRANSFORMER
D901
5
1SR154-400TE-25
6
4
D904
1SR154-400TE-25
7
3
8
C923
D902
0.1
2
1SR154-400TE-25
9
1
10
m
11
c o
(AEP, UK)
.
STR-DH800
2
8
9
9
12
13
14
CNP907
4P
N
1
R3 AC
2
NC
MAIN
BOARD
3
CENTER
(3/3)
4
R3 AC
CN553
T901
(Page 27)
MAIN POWER
CNP901
TRANSFORMER
4P
1
L(U'120V, CE'230V)
P
2
NC
3
NC
MAIN
BOARD
4
N
(3/3)
CN554
(Page 27)
CN905
5P
CL900
1
-15V
U
2
NC
CL909
3
GND
VIDEO
BOARD
4
GND
CL910
NO200
5
+15v
(Page 35)
CNP906
2
4
9
8
2
9
9
3P
1
L
(AC IN)
2
NC
3
N

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