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Sony Manuals
Receiver
STR-KS1200
Service manual
Schematic Diagram - Smps Board; I A O Y - Sony STR-KS1200 Service Manual
Multi channel av receiver
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:
Operating instructions manual
(68 pages)
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Contents
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STR-KS1200
Q Q
3 7 6 3 1 5 1 5 0
2-14. SCHEMATIC DIAGRAM - SMPS Board -
1
2
3
4
5
A
SMPS BOARD
B
C964
470p
250V
CN901
F901
C
3P
T6.3AL 250V
LIVE
1
AC IN
NUTRAL
3
L951
C901
0.22
1
4
275V
EB909
R901
1M
2
3
1/2W
EB901
D
VDR901
(CHASSIS)
IC901
POWER CONTROL
E
3.3
20.9
319
F
0.4
IC901
STR-F6168-LF1352
D904
10EDB60-TB5
G
C983
100p
250V
T E
L
1 3 9 4 2 2 9 6 5 1 3
C912
R914
EB902
100p
250V
H
(CHASSIS)
IC921
POWER CONTROL
I
1
3
J
K
C925
47p
L
2KV
R927
1
1W
w w w
STR-KS1200
6
7
8
9
C963
470p
250V
TH901
C920
0.01
L952
250V
4
1
C902
FR901
D901
0.22
0.1
~
275V
D5SBA60F01
1W
2
3
~
C905
0.0033
C918
C903
400V
330
0.01
250V
250V
D913
SARS03
R905
10
D905
20.9
D1NL20U-TR2
20.9
D908
MA111-TX
R910
20.3
Q901
2.2k
2SB1116A-TP-LK
B+ SWITCH
R907
R906
R909
10k
3.3k
D907
100k
MA111-TX
C907
1000p
R919
C911
18k
C906
4700p
C910
1000p
22
1.5kV
50V
R908
D909
3.3k
1/2W
MA111-TX
R912
R911
0.1
0.33
220
5W
2W
R915
470k
IC921
STR-V153
4
5
6
8
R967
2.2
1/2W
T902
SUB POWER
TRANSFORMER
R968
1
1k
R925
10
2
3
4
Q921
D923
R985
D922
2SD1616A-TP-LK
MAZ8100GMLS0
4.7
B+ SWITCH
D1NL20U-TR2
5
22
23
22.5
R923
7
4.7k
8
C922
R926
22
680k
35V
C923
4700p
C924
2.2
50V
x
a o
y
.
i
http://www.xiaoyu163.com
10
11
12
13
14
R931
3.3k
R965
5.6k
R932
C931
C938
33k
0.01
470p
630V
250V
R975
3.3k
R934
1k
C937
R933
0.047
4.7k
8
L931
6
9
5.6uH
R936
470k
5
10
IC931
D931
30.6
FCH20A15
4
11
SHUNT REGULATOR
28.7
IC931
3
TA76431AS(TPE6)
3
12
2.5
1
C935
2
13
C933
2
R939
0.1
2200
3.3k
35V
1
14
T901
MAIN POWER
TRANSFORMER
PC901-904
ISOLATOR
PC901
TLP421F(D4-GR)
1.7
31.7
R935
1k
30.6
Q
Q
3
7
6
PC903
TLP421F(D4-GR)
6.8
3.9
2.9
PC904
R960
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
L942
L945
L936
10uH
2.2uH
10uH
10uH
D941
C952
D1NL20U-TR2
0.047
16
D944
EK19LF-F7
15
D942
C978
EK19LF-F7
0.1
C979
14
R951
0.1
220
13
C946
C941
D943
1000
1000
RK46LF-T2
25V
R952
16V
2.5
2.2k
12
3
2.3
11
1
IC951
2
10
TA76L431S(TPE6,Q)
C940
C977
3300
0.1
10V
9
C944
C976
IC951
0.1
2200
25V
16V
C928
220p
SHUNT REGULATOR
250V
u 1 6 3
16
16
2
4
8
9
9
15
16
17
18
19
C934
C939
C936
R937
2200
0.1
0.1
10k
35V
R974
22k
Q943,947
Q944,964
0
POWER ON/OFF CONTROL
POWER VOLTAGE
Q943
CONTROL
0
RT1N141C-TP-1
3.4
3.4
0
Q964
Q944
Q947
R938
RT1N141C-TP-1
R949
2SC3052EF-T1-LEF
1k
RT1N141C-TP-1
1k
6.2
S
6.2
Q946
RSR025N03TL
R969
11.9
B+ SWITCH
47k
R978
D972
IC941
IC944
IC942
+12V REGFULATOR
+3.3V REGULATOR
+5V REGULATOR
IC941
IC944
IC942
SI-3120KM-TL
SI-3033KM-TL
SI-3050KM-TL
3
1
5
1
5
0
8
9
1
2
3
4
5
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
C951
C960
100
22
22
0.01
0.1
100
22
0.01
0.01
0.1
35V
35V
35V
10V
L947
10uH
9.2
9.2
S
L948
10uH
Q945
R957
RSR025N03TL
47k
B+ SWITCH
11.9
R958
1k
L935
10uH
L934
10uH
R953
3.9k
m
c o
.
2
8
9
9
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 12)
D932
MAZ8051GMLS0
3.4
0.8
EB903
EB904
EB905
1k
(CHASSIS)
11EQS04-TB5
2
4
9
8
2
9
9
CN906
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
8)
CN905
C943
7P
100
1
E4V
16V
2
AGND
F
3
AGND
4
AC-DET
MAIN
BOARD
5
P-CONT1
(4/10)
6
P-CONT2
CNP502
7
P-CONT3
(Page
8)
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
(Refer to page
AC DETECT
0.6
31 on original
service manual)
R966
C961
100k
47
10V
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Table of Contents
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