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

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
JL901
D
DGND 5
JL902
+4V 6
DIGITAL
+4V 7
BOARD
JL903
(3/4)
POWER RELAY 8
CN2000 JL904
E
STOP 9
(Page 22)
JL905
STBY_Supply(+5V) 10
JL906
STBY_GND 11
STBY_GND 12
F
G
H
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
CL901
R960
680
R961
470
D960
RB051LA-40TR
C919 C960 R962 C961 C962 C918
1000 0.1 1000 0.47
0.47 1.5k
16V 35V
IC901
+9V REGULATOR
IC901
KIA7809API-U/PF
9.1
O I
2 1
C916 G
47
3
25V
D910
UDZSUSTE-176.2B
D900
10EDB40-TB5
IC900
+5V REGULATOR
IC900
BA50BC0T
5 8.3
OUT VCC
2 1
GND
R912 R904
3 22k 2.2k
Q905
Q910
2SC3052EF-T1-LEF 2SC3052EF-T1-LEF
0 AC OFF DETECT RELAY DRIVE
0.6
R903
10k
R910
3.3k
C900 C901 C920 R905
470 0.1 10 10k
25V 50V
6 7 8
IC B/D
IC950
+6.2V REGULATOR
IC950
5 4 3 2 1
SI-8050S-LF1101
L951
100uH
L963
100uH
L952
R950 100uH
220
R952
1k
D950
RB060M-30
C950 R951 C951 C952
1000 330 0.1 1000
16V 35V
15.9
C915
0.47
FH900
RY900
D907
MA2J1110GLS0
R920
4.7
T3.15AL 250V (AEP, UK)
8A 125V (US, CND)
Q911-913
REGULATOR
Q912
2SB734-T-34
1SR154-400TE-25
8.3 16.3
15.7
1SR154-400TE-25
R913 R914
3.3k 10k
0.1
0.8 0.1 15.7 1SR154-400TE-25
2.9 0.1
C921 C922
2200 2200
1SR154-400TE-25
25V 25V
Q911 Q913
RT1N241C-TP-1 RT1N241C-TP-1
41 41
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
FH901
(US, CND)
T910
SUB POWER
TRANSFORMER
F900
5
6
4
7
3
8
2
9
1
10
11
D903
TH921
T911
SUB POWER
TRANSFORMER
D901
5
6
4
D904
7
3
8
C923
D902
0.1
2
9
1
10
11
(AEP, UK)
STR-DH800
12 13 14
CNP907
4P
N
1 R3 AC
2 NC
MAIN
BOARD
3 CENTER
(3/3)
CN553
4 R3 AC
T901
(Page 27)
MAIN POWER
CNP901
TRANSFORMER
4P
P
1 L(U'120V, CE'230V)
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
3P
1 L
(AC IN)
2 NC
3 N