STR-KS2300 - Sony Audio Service Manual (repair manual). Page 4

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STR-KS2300
STR-KS2300
4
4
2-2.  SCHEMATIC  DIAGRAM  - SMPS Board -
(5/5)
BOARD
G
MAIN
CN3002
(2/5)
BOARD
C
MAIN
CNP501
(2/5)
BOARD
B
MAIN
CNP502
(2/2)
BOARD
H
HDMI
CN3509
Refer to page
22 on original
service manual
Refer to page
19 on original
service manual
Refer to page
19 on original
service manual
Refer to page
27 on original
service manual
12
12
12.6
3.1
5
3.2
6.3
5
3.3
3.2
4
3.3
6.2
0.8
0
6.2
11.8
2.7
2.5
2.7
0
0
28.8
30.6
31.7
30.6
4
2.8
3
0.6
4
3
1.6
4.1
-3.8
1.3
3.3
20.9
335
0.4
20.9
20.9
20.2
330
0
22
1.3
324
22
22.5
23.1
9.2
9.2
11.9
0.6
0
2.5
2.3
275V
0.22
C901
1/2W
3.3M
R902
VDR901
1
4
3
2
L951
275V
0.22
C902
D5SBA60F01
D901
250V
0.01
C920
250V
0.01
C918
10EDB60-TB5
D904
C905
R903
R904
SARS03
D913
1
2
3
4
5
STR-F6138-LF1352
STR-F6168-LF1352
IC901
(US, CND, TW)
(AEP, UK, AUS, CH, TH)
1.5kV
1000p
C906
1.5kV
3300p
C985
35V
47
C908
4700p
C911
220p
C909
R914
2W
0.22
R912
220
R911
C912
250V
100p
E
EB902
10k
R907
MA2J1110GLS0
D908
MA2J1110GLS0
D907
MA2J1110GLS0
D914
3.3k
R906
1000p (AEP, UK, AUS, CH, TH)
1500p (US, CND, TW)
C907
MAZ8100GMLS0
D915
D1NL20U-TR2
D905
10
R905
MA2J1
110GLS0
D916
18k
R919
2.2k
R910
100k
R909
50V
22
C910
TLP421F(D4-GRJ)
PC901
TLP421F(D4-GRJ)
PC903
1/2W
3.3k
R908
MA2J1110GLS0
D909
0.1
C935
35V
2200
C932
35V
2200
C933
5.6uH
L931
1k
R934
1k
R935
1k
R938
4.7k
R933
470k
R936
3.3k
R939
33k
R932
0.047
C937
3
1
2
TA76431AS(TPE6)
IC931
0.1
C936
0.1
C939
0.1
C986
10k
R937
10k
R940
RT1N141C-TP-1
Q943
RT1N141C-TP-1
Q947
MAZ8051GMLS0
D932
1k
R949
1
3
4
5
6
8
STR-V153
IC921
2KV
47p
C925
R927
0.1
C929
4700p
C923
50V
2.2
C924
MAZ8051GMLS0
D926
MAZ8051GMLS0
D925
680k
R926
MAZ8100GMLS0
D923
UDZW-TE17-24B
D924
D1NL20U-TR2
D922
4.7k
R923
4.7
R985
35V
22
C922
1
2
10
11
7
9
12
13
14
5
4
8
15
16
3
T902
1k
R968
TLP421F(D4-GRJ)
PC902
10
R925
MA2J1110GLS0
D910
1k
R956
TLP421F(D4-GRJ)
PC904
2kV
0.001
C953
0.1
C976
0.1
C977
0.1
C978
0.1
C979
10V
3300
C940
16V
2200
C944
16V
1000
C946
25V
1000
C941
D1NL20U-TR2
D941
EK19LF-F7
D944
EK19LF-F7
D942
RK46LF-T1
D943
C928
220p
250V
0.047
C952
470
R955
220
R951
2.2k
R952
3.9k
R953
3
1
2
TA76L431S(TPE6,Q)
IC951
1
2
3
4
5
SI-3120KM-TLS
IC941
1
2
3
4
5
SI-3050KM-TLS
IC942
1
2
3
4
5
SI-3033KM-TLS
IC944
0.1
C960
0.1
C954
0.1
C951
10V
100
C947
10V
100
C959
16V
100
C943
150
R962
0
R943
0
R941
10k
R970
D945
UDZW-TE17-20B
S
RSR025N03TL
Q946
S
RSR025N03TL
Q945
47k
R969
1k
R978
47k
R957
1k
R958
100k
R966
10V
47
C961
0.1
C975
22k
R974
3.3k
R975
2SC3052EF-T1-LEF
Q964
RT1N141C-TP-1
Q944
E
EB909
ST
O2D-140
D971
1
4
3
2
L952
1
2
3
4
4P
CN902
P-GND
31.5V
31.5V
P-GND
250V
100p
C983
E
EB905
1
2
3
4
5
6
7
7P
CN905
E4V
AGND
AGND
AC-DET
P-CONT1
P-CONT2
P-CONT3
11EQS04-TB5
D972
4.7k
R960
1/2W
2.2
R967
C903
C938
C963
250V
470p
250V (US, CND, TW)
2200p
∗C963, 964
400V (AEP, UK, AUS, CH, TH)
3300p
400V (US, CND, TW)
0.01
∗C905
3W (AEP, UK, AUS, CH, TH)
(AEP, UK, AUS, CH, TH)
33k
3W (US, CND, TW)
(US, CND, TW)
100k
∗R903, 904
250V (AEP, UK, AUS, CH, TH)
330
250V (US, CND, TW)
1000
∗C903
2W (AEP, UK, AUS, CH, TH)
0.22
2W (US, CND, TW)
(AEP, UK, AUS, CH, TH)
(US, CND, TW)
(US, CND, TW)
0.33
250V (AEP, UK, AUS, CH, TH)
330p
250V (US, CND, TW)
470p
∗R912
5W
(AEP, UK, AUS, CH, TH)
0.05
5W
(US, CND, TW)
8A/125V
(AEP, UK, AUS, CH, TH)
(AEP, UK, AUS, CH, TH)
T6.3AL/250V
(US, CND, TW)
(US, CND)
0.1
∗R914
(AEP, UK, AUS, CH, TH)
100k (US, CND, TW)
470k
C964
FR901
JW970
JW971
1W
0.1
1
3
10
11
2
9
12
13
14
5
8
4
6
T901
TH901
FMX-22SL
D931
16V
470
C945
10V
470
C958
0.1
C980
0.1
C981
0.1
C982
35V
2200
C934
2.2uH
L942
2SC3052EF-T1-LEF
Q961
2SA1015TP-YGR
Q901
2SC3243-TP-E
Q921
25V
330
C942
4.7k
R954
R915
R931
R965
1/2W
R901
1M
10uH
L945
10uH
L936
10uH
L937
10uH
L935
10uH
L934
10uH
L948
10uH
L947
10uH
L950
R913
E
EB901
F901
OCP
GND
D
VCC
OLP
D
OCP
VCC
GND
FB/OLP
ST
AR
TUP
SENSE
OUTPUT
GND
INPUT
ENABLE
SENSE
OUTPUT
GND
INPUT
ENABLE
SENSE
OUTPUT
GND
INPUT
ENABLE
+12V REGULATOR
IC941
+5V REGULATOR
IC942
+3.3V REGULATOR
IC944
(CHASSIS)
SHUNT REGULATOR
IC951
SHUNT REGULATOR
IC931
(CHASSIS)
(CHASSIS)
(CHASSIS)
IC901
POWER CONTROL
IC921
POWER CONTROL
SMPS BOARD
B+ SWITCH
B+ SWITCH
MAIN POWER
TRANSFORMER
SUB POWER
TRANSFORMER
ISOLATOR
PC901-904
Q944, 964
POWER VOLTAGE CONTROL
POWER ON/OFF
Q943, 947
CONTROL
B+ SWITCH
B+ SWITCH
1
D.DCON 5V
NC
2
6V
3
AMP 12V
4
12V
5
3.3V
6
8V
7
D-GND
8
D-GND
9
9P
CN906
6
4
5
1
3
2
+6.3V
D-GND
D-GND
+4.1V
NC
+4.1V
CN903
6P
AC DETECT
NC
2
LIVE
1
NUTRAL
3
3P
CN901
(AC IN)
7
11
D
B
16
6
9
17
10
F
5
15
3
G
1
18
12
C
E
H
8
4
13
A
14
2
I
~
~
1W
(AEP, UK, AUS, CH, TH)
0.82
1W
(US, CND, TW)
1
∗R927
(EXCEPT TH)
3.3k
(TH)
8.2k
∗R965
(TH)
0
(EXCEPT TH)
5.6k
∗R931
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