Schematic Diagram - Power Section - Sony STR-DG820 Service Manual

6-35. SCHEMATIC DIAGRAM - POWER Section -

1 2
A
R2 RETURN GND
NC
K
-15V
STBY GND
MAIN
BOARD
R2 GND
(3/3)
CNP912
+15V
B
(Page 23)
L
GND
R4
MAIN
R4
BOARD
(3/3)
GND
CN941
(Page 23)
C
R2 SUPPLY
NC
AH
R2 GND
POWER RELAY
MICOM
STOP
BOARD
CN7008
STBY SUPPLY (+5V)
(Page 37)
STBY_GND
STBY_GND
D
(CHASSIS)
E
J
N
NC
MAIN NC
BOARD
T901
(3/3)
L (U 120V CE 230V)
MAIN POWER
CNP940
TRANSFORMER
(Page 23)
M
R2_AC
F
MAIN R2_CENTER_TAP
BOARD
(3/3)
R2_AC
CNP920
(Page 23)
AC-R2-17V
AQ
AC-R2-17V
GND
DCDC
GND
G BOARD
CN4001
AC-R2-17V
(Page 45)
AC-R2-17V
H
I
STR-DG820
3 4 5
STANDBY BOARD
CN722
6P
JL927
1
2
JL928
3
JL929
4
JL930
5
JL931
6
C915
0.1
CN914
4P
JL924
1
JL925
2
3
JL926
4
D914
10EDB40-TB5
CN915
8P
JL923
1
IC910
2
JL922
3
JL921
+5V REGULATOR
4
JL920 Q910
2SC3052EF-T1-LEF
5
JL919
0 AC OFF DETECT
6
R913
JL918
7 IC910
JL949 BA05T 0.6
8
4.6 9.2
3 1
VCC
OUT
GND
C916
C922
C923 10
2
470
0.1 50V
25V
C919
EB912 470p
JL910
CN910
4P
1
2
3
4
CN912
R911
3P
0.22
1/2W
JL932
1
JL933
2
JL934
3 D910
R912 1SR154-400TE-25
0.22
1/2W
CN913
6P
JL935
1
JL936 D913
2 1SR154-400TE-25
JL937
3
JL938
4
JL939
5
C914 C913
JL940 C912
1000 2200
0.1
6
25V 25V
6 7 8
Q912-914
REGULATOR
Q913
2SB734-T-34
9.2 15.4
R919
14.8
10k
R918
D922
3.3k
R916
UDZSNPTE-176.2B
2.2k
10k
0 0 14.8
0.6 3.7 0
R917
Q912
10k Q914
RT1N241C-TP-1
RT1N241C-TP-1
Q911
2SC3052EF-T1-LEF
RELAY DRIVE
D912
1SR154-400TE-25
D911
1SR154-400TE-25
C911
0.1
47 47
9 10 11
RY910
D921
MA2J1110GLS0
R920
4.7
(US, CND)
T910
SUB POWER
TRANSFORMER
5
6
D919 4
1SR154-400TE-25
7
D918
JS910
1SR154-400TE-25
C920 3
0.1
8
D917
1SR154-400TE-25
2
9
1
D916
1SR154-400TE-25
10
D915
1SR154-400TE-25
11
T911
SUB POWER
TRANSFORMER
5
6
4
TH910
7
3
8
2
9
1
10
11
(AEP, ECE, UK)
POWER SW BOARD
SW1
POWER
STR-DG820
12 13
F910
T2.5AL/250V (AEP, ECE, UK)
6.3A/125V (US, CND)
JS008
R910
3.3M JL947
1/2W
(CHASSIS)
CNP917
2P
2
1
CNP916
3P
(AC IN)
1 L
2 NC
3
N
C924
0.01
250V
CN1
3P
CL2
1
2 NC
CL1
3
(Page 39)
CN2
2P
AK
CL4
2
PWR_SW
CL3
1 DISPLAY
+3.3V
BOARD
CNP718