Schematic Diagram - Standby Board, Dcdc Board - Sony STR-K890 Service Manual

4-18. SCHEMATIC DIAGRAM – STANDBY BOARD, DCDC BOARD –
1 2
A
STANDBY BOARD
B
CNP802
6P
+15V 6
R2 GND IN 5
N
STBY GND
4
MAIN
-15V
3
BOARD
C
1
R2 RETURN GND
(4/4)
CN915
(Page 27)
CNP903
5P
D
+15V 1
C
STOP 2
DIGITAL
GND 3
BOARD
+9V STANDBY 4
(4/5)
5
POWER RELAY
CNP505
(Page 21)
E
Q921
2SC1740S-QRT
AC DET
0
F
0.6
G
H
STR-K890
3 4 5
R810
0.22
1/2W
D920 D923 C913
10EDB40-TA2B5
10EDB40-TA2B5 0.1
C915
2200
D921 D922
25V
10EDB40-TA2B5 10EDB40-TA2B5
C916
1000 R811
25V 0.22
1/2W
Q901
2SC1740S-QRT
RELAY DRIVE
0.2
RY901
R903 5V, TV-8
2.2k 0.8
R902
47k
R904
1
1/4W
C950
D910
3300
10EDB40-TA2B5
16V
JW905
D911 7.5
C920
JW908
10EDB40-TA2B5
0.1
D912
4
10EDB40-TA2B5
6 3
D913
C921
10EDB40-TA2B5
0.1
D914
1SS133T-72
C924
R922
1 8 1
22k
50V
D915
R921
1SS133T-72
R923 T902
47k
10k
POWER TRANSFORMER
(SUB)
6 7 8
CNP804
3P
1 R2 AC AC-R2-17V
2 R2 GND GND
3 R2 AC AC-R2-17V
CNP805
3P
1 R2 AC
2 R2 GND
3 R2 AC
F901
CNP902
T2.5AL/250V
2P
FH901 FH902
1 LIVE
2 NEUTRAL
CNP901
3P
1 LIVE L
AC IN
3 NEUTRAL
N
No mark:FM
31 31
9 10 11
DCDC BOARD
SI-8050S-LF1101
1 2
F4001
CN4001
T3.15AL/250V
3P
FH4001 FH4002
D4001
1
D3SB60F3
CL003
L4000
2
100uH
CL004
3
F4002
C4002
T3.15AL/250V
C4003
3300
1000
FH4003 FH4004
35V
35V
D4803
RK36LF-B3
T901
POWER TRANSFORMER
(MAIN)
STR-K890
12 13 14
IC4001
IC4001
+6.3V REG
3 4 5
L4001
100uH
E E
R4001 1 DGND
470
3 +6.3V DIGITAL
BOARD
4 +4.1V
C4005
1000
(1/5)
R4002 16V CN4103
680
3P
CNP512
(Page 18)
No mark:FM
J
MAIN
BOARD
(4/4)
CNP801
(Page 27)
K
MAIN
BOARD
(4/4)
CNP802
(Page 27)