Sony STR-KS1100 Service Manual page 27

Q Q
3 7 6 3 1 5 1 5 0
4-17. SCHEMATIC DIAGRAM – MAIN Board (8/8) –
(8/8)
CN901 F901
2P T6.3AL
250V
(AC IN)
C901
R901
0.22
1M
275V
1/2W
EB908
EB909
(Page 26)
C906
680p
1.5kV
IC901
STR-F6168-LF13
C908
47
35V
POWER CONTROL
T E
L 1 3 9 4 2 2 9 6 5 1 3
EB901
C912
R914
100p
0.1
125V
5W
(CHASSIS) EB902
C913
100p
125V
POWER CONTROL
IC921
STR-V153
C925 R927
C923
47p 1
0.0047
2kV 1W
UDZW-TE17
w w w
STR-KS1100
• See page 34 for IC Block Diagrams.
LF901 LF902
TH901
LINE FILTER LINE FILTER
C963 C965
0.001 100p
C902
VDR901
0.22
275V
C964 C966
0.001 100p
C920
0.01
250V
R930
0
R924 2
0
4 1
D901
D5SBA60F01
3
C905
D904
0.0033
10EDB60-TB5
400V
C918
0.01
250V
C911 0.0047 C903
330
450V
Q901
2SB1116
B+ SWITCH
D908 R918 D905
MA111-TX 0 D1NL20U-TR2
D906
MA111-TX D914
MA111-TX
R906
D907 3.3k
MA111-TX D915
C909 R919 UDZW-TE17-10B
220p 18k
R911 C907
220 0.001
R907
10k
R912
0.33
2W
R967
2.2
1/2W
D910 R968 R921
MA111-TX 1k 100k
2W
D923
R925
UDZW-TE17-10B
10
D921
ERA22-08KFLB
Q921 R923
D925
2SD1616 4.7k
UDZW-TE17
-5.1B REGULATOR
C924 C922
2.2 R926 D924 22
50V 680k UDZW-TE17-24B 35V
D926 C929
0.1
-5.1B
x a o
y
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http://www.xiaoyu163.com
C931
10000p
630V
L931
10µH
C938
680p
125V
D931
FCH20A15
T901
MAIN POWER TRANSFORMER
R903 R904
100k 100k
3W 3W
R934
D913
1k
SARS03
R905
10
R910
2.2k
PC901
TLP421F
R909
ISOLATOR
100k
C910
R935
22
1k
50V
Q Q
3 7 6
PC903
R908 TLP421F
3.3k
ISOLATOR
1/2W
D909
MA111-TX
PC904
TLP421F
+3.3V ADJ
R960
ISOLATOR
10k REGULATOR
VC
IC943
SI-3033KM-TL
R915
220k
R948
10k
PC902
TLP421F
ISOLATOR
R956
1k
D942 EC21QS04
D944 EC21QS04
T902
SUB POWER TRANSFORMER
D943 EC21QS04
C921
3300p
500V
D922 R922
D1NL20U-TR2 4.7
C928
220p
125V
u 1 6 3
.
27 27
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2 4
8 9 9
R931
8.2k
R965
0
C934
R937 R940 C936
2200
C937 R933 R932 10k 10k 0.1
35V
0.047 4.7k 33k
R936 R938
470k 1k
SHUNT REGULATOR
Q943
RT1N141C-TP-1
IC931
TA76431AS Q947
RT1N141C-TP-1
C932 C933 R939 R949
C935 2200 2200 3.3k 1k
0.1 35V 35V
R970 22k
R962 3.3k
Q964
2SC2713G
Q944
RT1N141C-TP-1
Q946
RSR025N03
B+ SWITCH
3 1 5 1 5 0 8 9 2
R946
150
R943
0
VOUT +5V REGULATOR ADJ VOUT +12V REGULATOR ADJ
IC942 IC941
VIN GND VC VIN GND VC
SI-3050KM-TL SI-3120KM-TL
C948 C949 C945 C947 D945
C955 C954
22 100 22 100 UDZW-TE17
0.1 0.1
35V 10V 35V 10V -20B
C944 L942
2200 10µH L945 L941
C977 0.1 16V 10µH 10µH
C953 0.001 2kV C979 0.1 C941 1000 25V L947
10µH
D941 D1NL20U-TR2 C978 0.1 C946 1000 16V
C976 0.1 C940 3300 10V
C952
R955 R954 0.047
470 22k
R951
220
R952
2.2k
SHUNT REGULATOR
IC951
TA76L431S
R953
3.9k
C961
R966
10
100k
50V
m
c o
STR-KS1100
2
8 9 9
31.5V
P-GND
AMP_12V
AMP_3.3V
C939
2.2
(Page 26)
Q943,947
D932 POWER ON/OFF CONTROL
UDZW-TE17-5.1B
EB904
(CHASSIS)
EB903
Q944,964
POWER VOLUME
CONTROL
4 9 8 2 9 9
S
R969
47k
D.DCON5V
R941 R978
6V
0 1k
L950 10µH
12V
C975 0.1
GND
E4V
(Page 21)
8V
VOUT
VIN GND
C951
0.1
C942 C943
22 100
35V 16V
P.CONT2
P.CONT3
P.CONT1
3.3V
Q945
AC-DET
RSR025N03
(Page 20)
B+ SWITCH
S
R957 R958
47k 1k
Q961
2SC2412K
AC DETECT
8V
MGND
(Page 20)