Sony STR-K990 - Schematic Diagrams - Standby & DCDC

3232
STR-K990
STR-K990
4-18. SCHEMATIC DIAGRAM – STANDBY BOARD, DCDC BOARD –
E
DIGITAL
BOARD
(1/5)
CNP512
(Page 19)
MAIN
BOARD
(4/4)
CNP801
(Page 28)
J
MAIN
BOARD
(4/4)
CNP802
(Page 28)
K
0.8
0.6
0.2
0
No mark:FM
17.2
6.4
5.1
2.4
No mark:FM
N
MAIN
BOARD
(4/4)
CN915
(Page 28)
E
C
DIGITAL
BOARD
(4/5)
CNP505
(1pin to 5pin)
(Page 22)
(CHASSIS)
10EDB40-TA2B5
D910
10EDB40-TA2B5
D911
10EDB40-TA2B5
D912
10EDB40-TA2B5
D913
10EDB40-TA2B5
D920
10EDB40-TA2B5
D921
10EDB40-TA2B5
D922
10EDB40-TA2B5
D923
1/2W
0.22
R810
1/2W
1/4W
0.22
R811
0.1
C913
0.1
C914
0.1
C920
0.1
C922
0.1
C921
50V
1
C924
47k
R921
22k
R922
10k
R923
3.3M
R901
G901
2.2k
R903
1
R904
1SS133T-72
D901
1SS133T-72
D914
1SS133T-72
D915
2SC1740S-QRT
Q901
2SC1740S-QRT
Q921
47k
R902
1
2
2
2P
CNP902
LIVE
NEUTRAL
FH901 FH902
RY901
JW908
1
2
3
3P
CNP805
R2 AC
R2 GND
R2 AC
1
2
3
3P
CNP804
R2 AC
R2 GND
R2 AC
1
2
3
4
5
5P
CNP903
+15V
STOP
GND
+9V STANDBY
POWER RELAY
25V
1000
C916
1
3P
CNP901
LIVE L
N
NEUTRAL
1
3
4
8
6
POWER TRANSFORMER
T902
(SUB)
16V
3300
C950
25V
2200
C915
1
2
3
4
5
6P
CNP802
R2 RETURN GND
-15V
STBY GND
R2 GND IN
+15V
6
7.5
JW905
F901
5A/125V
STANDBY BOARD
RELAY DRIVE
AC DET
12345
SI-8050S-LF1101
IC4001
35V
3300
C4002
FH4001 FH4002
CL003
CL004
0.1
C4004
0.47
C4006
680
R4002
1.5k
R4000
470
R4001
16V
1000
C4005
RK36LF-B3
D4803
100uH
L4000
100uH
L4001
1
2
3
CN4103
3P
DGND
+6.3V
+4.1V
D3SB60F3
D4001
FH4003 FH4004
1
2
3
3P
CN4001
AC-R2-17V
GND
AC-R2-17V
35V
1000
C4003
DCDC BOARD
IC4001
F4001
T3.15AL/250V
F4002
T3.15AL/250V
+6.3V REG
AC IN
POWER TRANSFORMER
T901
(MAIN)
1 2 3 4 5 6 7 8 9 10 11 12 13 14
A
B
C
D
E
F
G
H