Schematic Diagram - Smps Board - Sony STR-KS1200 Service Manual

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3 7 6 3 1 5 1 5 0

5-29. SCHEMATIC DIAGRAM - SMPS Board -

1 2 3 4
A
SMPS BOARD
B
CN901
F901
C 3P T6.3AL 250V
LIVE 1
AC IN
NUTRAL 3
L951
C901
0.22
275V
EB909
R901
1M
1/2W
EB901
D
VDR901
(CHASSIS)
IC B/D
IC901
POWER CONTROL
E
3.3
20.9
319
F
0.4
IC901
STR-F6168-LF1352
G
C983
100p
250V
T E
L 1 3 9 4 2 2 9 6 5 1 3
C912
EB902 100p
250V
H
(CHASSIS)
IC B/D
IC921
POWER CONTROL
I
J
K
L
w w w
STR-KS1200
• See page 40 for IC Block Diagrams.
5 6 7 8 9
C964 C963
470p 470p
250V 250V
TH901
C920
0.01
L952 250V
4
1 4 1
C902 FR901
D901
0.22 0.1
~
275V D5SBA60F01 1W
2 3 2 3
~
C918 C903
330
0.01
250V 250V
D905
20.9
D1NL20U-TR2
20.9
D908
MA111-TX
20.3
Q901
2SB1116A-TP-LK
B+ SWITCH
R907
R906
10k
3.3k
D907
MA111-TX
D904
C907
10EDB60-TB5
1000p
R919
C911 18k
C906
4700p
1000p
1.5kV
R914 R912
R911
0.1
0.33
220
5W 2W
IC921
STR-V153
1 3 4 5 6 8
R967
2.2
1/2W
R968
1k
R925
10
Q921
D923 R985
D922
2SD1616A-TP-LK
MAZ8100GMLS0 4.7
B+ SWITCH D1NL20U-TR2
22 23
22.5
R923
4.7k
C922
C925 R926
22
47p 680k
35V
2KV C923
4700p
R927
C924
1
2.2
1W
50V
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y
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http://www.xiaoyu163.com
10 11 12 13 14
C931
C938
0.01
470p
630V
250V
R975
R934
1k C937
0.047
8
L931
6 9 5.6uH R936
470k
C905
0.0033
400V
5 10
IC931
D931
FCH20A15
4 11 SHUNT REGULATOR
D913 28.7
IC931
SARS03
3
TA76431AS(TPE6)
3 12 2.5
1
C935
2 13 C933 2
0.1 2200
R905
35V
10
1 14
T901
MAIN POWER
TRANSFORMER
R910
2.2k
R909
100k
PC901-904
ISOLATOR
PC901
TLP421F(D4-GR)
1.7 31.7
C910 R935
22
1k
50V 30.6
Q Q
3 7 6
R908
D909 PC903
3.3k
1/2W MA111-TX TLP421F(D4-GR)
6.8 3.9
2.9
PC904
R915
R960
470k TLP421F(D4-GR)
120.5 0.6 4.7k
0.6
PC902
TLP421F(D4-GR)
1.5 3.9
R956 R954
R955
1k
22k
2.9 470
C953
0.001
2kV
L937
T902 L942 L945 L936
10uH
SUB POWER 10uH 10uH 10uH
TRANSFORMER D941
D1NL20U-TR2
1 16
D944
EK19LF-F7
2 15
D942
C978
EK19LF-F7
0.1 C979
3 14
0.1
4 13
C946 C941
D943
1000 1000
RK46LF-T2 25V
16V 2.5
5 12
3
2.3
11 1
IC951
2
7 10 TA76L431S(TPE6,Q)
C940 C977
3300 0.1
10V
8 9
C944
C976
IC951
0.1 2200
25V 16V
C928
220p
SHUNT REGULATOR
250V
u 1 6 3
.
39 39
2 4
8 9 9
15 16 17 18
R931 C934 C939
C936 R937
3.3k 2200 0.1
0.1
10k
35V
R965
5.6k
R932
R974
33k
22k
3.3k
R933
4.7k
Q944,964
0
POWER VOLTAGE
Q943
CONTROL
30.6 0 RT1N141C-TP-1
3.4 3.4
0
Q964 Q944
R938
RT1N141C-TP-1 R949
R939 2SC3052EF-T1-LEF 1k
3.3k 1k
6.2 S 6.2
Q946
RSR025N03TL
R969
11.9 B+ SWITCH 47k
IC B/D IC B/D
IC944 IC942
+12V REGFULATOR
+3.3V REGULATOR +5V REGULATOR
IC944 IC942
SI-3033KM-TL SI-3050KM-TL
3 1 5 1 5 0 8 9 2
1
1 2 3 4 5 1 2 3 4 5
R943
R962 0
150
R970 C954
10k 0.1
C958 C980 C959 C945 C981 C947 C982 C942
C960
100
22 0.01 0.1 100 22 0.01 0.01
35V 35V
35V 10V
C952
0.047
L947
10uH
9.2 9.2
S
L948
10uH
Q945 R957
RSR025N03TL 47k
R951
B+ SWITCH
220 11.9
R958
1k
R952
2.2k
L935 10uH
L934 10uH
R953
3.9k
m
c o
STR-KS1200
2
8 9 9
19 20 21 22 23
CN902
4P
D
1 P-GND
2 32.0V
MAIN
3 32.0V
BOARD
4 P-GND
R940 (8/10)
10k
CN3002
(Page 25)
D932
MAZ8051GMLS0
Q943,947
POWER ON/OFF CONTROL
3.4
Q947
RT1N141C-TP-1 0.8
EB903
EB904
EB905
R978
1k
(CHASSIS)
11EQS04-TB5
D972
IC941
IC B/D
IC941
SI-3120KM-TL
4 9 8 2 9 9
CN906
2 3 4 5 9P
1 D.DCON5V
3 6V
L950
10uH 4 AMP_12V E
5 12V
MAIN
6 3.3V
C975
R941 BOARD
0.1
0 7 8V (4/10)
CNP501
8 D-GND
(Page
9 D-GND
21)
CN905
C943 7P
100
1 E4V
16V
2 AGND
F
3 AGND
C951
22
0.1 4 AC-DET
MAIN
BOARD
5 P-CONT1
(4/10)
6 P-CONT2
CNP502
7 P-CONT3 (Page
21)
CN903
6P
H
6 +6.3V
5
D-GND
4 D-GND HDMI
RE BOARD
3 +4.1V
(2/2)
Q961
CN3509
0 1 +4.1V
2SC2412K-T-146-R
(Page
AC DETECT
0.6
31)
R966 C961
100k 47
10V