Sony HT-CT550W / SA-WCT550W Service Manual ▷ View online
SA-WCT550W
SA-WCT550W
13
13
3-5. PRINTED WIRING BOARDS - LED CONNECT, FRONT LED Boards -
3-6. SCHEMATIC DIAGRAM - LED CONNECT, FRONT LED Boards -
MAIN
CN106
SUB
B
BOARD
CL902
CL901
CL900
(GRN)
(RED)
SMLT12D16C-STP4
D900
1
3
4
4P
CN900
LED(R)
LED(G)
GND
22
R900
820
R901
1
2
3
3P
CN915
LED(R)
LED(G)
GND
CL910
1
2
3
3P
CN910
LED(R)
LED(G)
GND
JL912
JL910
JL911
0.01
C710
FRONT LED BOARD
LED CONNECT BOARD
LINK/STANDBY
INDICATOR
A
D
C
4
B
1
3
2
1
3
1
3
CN910
CN915
CL910
C710
JL910
JL911
JL912
1
4
CN900
D900
CL900
CL901
CL902
R900
R901
(RED)
(GRN)
B
SUB MAIN
BOARD
CN106
LED CONNECT BOARD
(SIDE A)
LED CONNECT BOARD
(SIDE B)
1-883-800-
11
(11, 12)
1-883-800-
11
(11, 12)
FRONT LED BOARD
(COMPONENT SIDE)
FRONT LED BOARD
(CONDUCTOR SIDE)
1-883-801-
11
(11, 12)
1-883-801-
11
(11, 12)
A
B
C
D
1
2
3
LINK/STANDBY
INDICATOR
(Page 11)
(Page 12)
•
: Uses unleaded solder.
SA-WCT550W
SA-WCT550W
14
14
3-7. PRINTED WIRING BOARD - POWER Board -
B
E
IC940
IC950
CL900
CL901
CL902
CL903
CL904
CL905
CL910
CL911
CL912
CL913
CL914
CL915
CL916
CL917
CL918
CL920
CL921
CL922
CL923
CL924
CL925
CL926
CL927
CL928
CL929
CL930
CL940
CL941
CL942
CL943
CL950
CL951
CL952
CL953
CL960
CL962
CL963
CL964
Q921
Q922
Q923
CAM901
Q960
Q961
R901
Q962
R902
R903
R904
R905
R910
R914
R915
R916
R920
R925
R927
R928
R929
R930
R931
R932
R940
R941
R942
R943
R944
R945
R946
R947
R949
R950
R951
C916
R953
R955
R956
R957
JL900
JL901
R959
JL902
JL903
JL904
JL905
JL906
JL908
R960
TH920
JL909
R961
C925
R962
R963
C928
C929
JL911
JL912
JL913
JL914
C930
JL915
C931
C932
JL917
JL919
C943
C944
C946
C947
C952
C953
C954
C960
D902
D912
D913
D914
D915
D916
D922
D923
D925
D926
D927
D928
D929
D930
D931
D932
E
B
C
E
1
1
2
2
3
4
3
4
7
3
1
6
4
+
-
1
3
C
E
C
E
1
9
E
B
1
4
5
8
D940
IC920
D950
JS901
JS902
JS903
JS904
JS905
F900
Q901
Q920
PC901
PC902
PC903
EB901
EB902
VDR900
R900
R911
R913
CN900
CN901
R921
R922
R923
FR910
R924
R926
FH900
FH901
TH900
A001
A002
C907
C911
C914
C917
LF900
C919
LF901
C922
C923
C923
C924
C927
C937
C940
C941
C951
JW902
JW903
JW904
JW905
JW907
JW908
JW909
D900
D901
JW910
JW913
JW914
JW915
JW917
JW918
D910
D911
JW920
D920
D924
T901
T902
IC910
C920
C921
C900
C902
C902
C905
C906
C906
C903
C904
C904
C935
C936
C936
1-882-860-
11
(11)
E
A
SUB MAIN
BOARD
CN104
E
E
MAIN POWER
TRANSFORMER
E
PATTERN
SPARK-GAP
(AC IN)
(CHASSIS)
(CHASSIS)
E
POWER BOARD
SUB POWER
TRANSFORMER
1
5
10
6
1
2
4
3
1
2
4
3
1
7
8
14
(US, CND, TW)
(AEP, UK)
(AEP, UK)
(US, CND, TW)
(US, CND, TW)
(AEP, UK)
(AEP, UK)
(US, CND, TW)
(AEP, UK)
(US, CND, TW)
(AEP, UK)
(US, CND, TW)
(AEP, UK)
(US, CND, TW)
(US, CND, TW)
(AEP, UK)
A
B
C
D
1
2
3
4
5
6
7
8
(Page 11)
•
: Uses unleaded solder.
Ver. 1.1
SA-WCT550W
SA-WCT550W
15
15
3-8. SCHEMATIC DIAGRAM - POWER Board -
29.2
2.5
4.2
3.1
4.2
3.1
32.3
31.3
0.9
21.8
21.1
0
303
21.1
0
1.5
0.9
21.1
-0.5
20.2
7.7
11.1
0.9
21.8
300
302
302
0
21.1
-4.5
22.6
22.4
20.4
2.5
2.5
0
3.3
0
3.3
31.3
0
-5.4
21.1
11.6
C940
4700p
0.01
C931
0.01
C930
470p
C925
250V
C900
0.22
100
R920
1k
R929
1k
R941
4.7k
R925
4.7k
R931
68k
R932
1k
R930
VDR900
SARS03
D920
1
3
4
5
6
7
IC920
D
S/GND
Vcc
OLP/SS
FB
OCP/BD
~
~
D3SB60F3
D900
D924
C936
450V
100
RT1P141M-TP-1
Q922
RT1N441M-TP-1
Q921
CL921
CL922
CL923
CL905
CL920
CL940
CL960
C935
200V
330
E
EB901
E
EB902
2200p
C928
4.7k
R927
0
R928
47
R924
250V
1000p
C903
1
2
3
4
LF900
1
2
3
4
LF901
50V
10
C924
100V
100p
C929
1
3
3P
CN900
LIVE
NEUTRAL
D927
UDZSUSTE-176.2B
R921
R922
CL901
CL902
2SD1388TP-4
Q920
PS2561AL1-1-V-W
PC903
50V
47
C927
1
3
4
5
6
7
8
9
9P
CN901
32V
32V
32V
GND
GND
GND
MAIN_ON
E4V
470
R951
4.7k
R915
10
R901
UDZSUSTE-1710B
D915
0.01
C952
2.2k
R956
4
3
1
2
MM1431CURE
IC950
NC
33k
R910
D901
2.2
R914
0.047
C953
C954
0.01
UDZSUSTE-1730B
D914
RK36LF-B3
D950
1F6G
D910
1/2W
FR910
1
680k
R916
4700p
C916
D1NL20U-TR2
D911
R911
5.6
PS2561AL1-1-V-W
PC901
4.7k
R902
4.7k
R903
2SA1015TP-YGR
Q901
22k
R962
3.3k
R960
RT1N441M-TP-1
Q962
2SC4154TP-1EF
Q961
100
R963
RT1N441M-TP-1
Q960
3.3k
R961
0.047
C943
1k
R943
R949
1k
2.2k
R944
4
3
1
2
MM1431CURE
IC940
NC
470k
R942
CL942
PS2561AL1-1-V-W
PC902
3.9k
R955
100
R945
2.2k
R947
27k
R946
CL900
CL903
CL904
CL910
CL911
CL912
CL913
CL914
CL915
CL916
CL917
CL918
CL924
CL926
CL925
CL927
CL928
CL929
CL930
CL909
CL941
CL950
CL951
CL952
CL962
CL964
CL943
CL953
8
7
5
4
3
2
1
IC910
STR-A6159M
OCP
VCC
GND
FB
START_UP
DRAIN
DRAIN
R959
10k
10k
R953
250V
C905
1000p
250V
C904
470p
250V
C906
470p
400V
C921
3300p
400V
C920
0.01
10k
R904
JS905
2W
R913
100k
400V
3300p
C911
CL963
250V
C937
0.1
250V
C902
0.1
T901
1
4
7
9
2
5
6
8
10
TH920
1
3
10
11
2
9
12
13
14
5
8
6
7
T902
R926
820
35V
1000
C941
10V
2200
C951
0.1
C947
0.1
C946
0.1
C932
C944
0.01
JL900
JL901
JL902
JL903
JL904
JL905
JL906
JL908
JL909
JL911
JL912
JL913
JL914
JL915
JL917
JL919
TH900
DZ2J200M0L
D922
DZ2J330M0L
D930
DZ2J062M0L
D928
DZ2J100M0L
D932
DZ2J051M0L
D916
DZ2J100M0L
D912
DZ2J24000L
D913
DA2J10100L
D902
DA2J10100L
D929
DA2J10100L
D923
DA2J10100L
D925
DA2J10100L
D926
DZ2J068M0L
D931
50V
1
C919
50V
2.2
C917
100V
47
C914
2SC5053T100Q
Q923
470
R957
0.1
C960
FMX-22SL
D940
R905
100k
JS903
JS902
JS901
JS904
R900
1/2W
1M
1k
R940
C923
1.2kV
3300p
C922
1.5kV
680p
1k
R950
IC920
POWER CONTROL
(CHASSIS)
TRANSFORMER
MAIN POWER
TRANSFORMER
SUB POWER
ISOLATOR
ISOLATOR
ISOLATOR
POWER CONTROL
IC910
IC940
POWER BOARD
SHUNT REGULATOR
IC950
(CHASSIS)
(AC IN)
Q921, 922
OVER LOAD PROTECT
IC B/D
IC B/D
B+ SWITCH
*
LINE FILTER
LINE FILTER
R923
82k 3W (AEP, UK)
100k 3W (US, CND, TW)
470p 250V (AEP, UK)
100P 250V (US, CND, TW)
C907
STR-W6765N (AEP, UK)
STR-W6735N (US, CND, TW)
0.36 2W (AEP, UK)
0.22 2W (US, CND, TW)
R921
0.33 2W (US, CND, TW)
R922
0.47 2W (AEP, UK)
REGULATOR
(US, CND, TW)
(AEP, UK)
REGULATOR
(US, CND, TW)
(AEP, UK)
(AEP, UK)
(AEP, UK)
(US, CND, TW)
(AEP, UK)
(US, CND, TW)
(US, CND, TW)
(AEP, UK)
(US, CND, TW)
(US, CND, TW)
(AEP, UK)
PATTERN
SPARK-GAP
CAM901
T3.15AH 250V (AEP, UK)
5A 125V (US, CND, TW)
F900
POWER ON/OFF
CONTROL
POWER VOLTAGE
CONTROL
Q961, 962
SHUNT REGULATOR
CN104
BOARD
A
SUB MAIN
13
A
15
E
D
C
4
14
16
17
8
G
B
1
11
3
10
I
9
J
F
H
6
2
5
7
12
D901, 924
D1NL40-TR2 (AEP, UK)
D1NL20U-TR2 (US, CND, TW)
(Page 12)
Ver. 1.1
SA-WCT550W
SA-WCT550W
16
16
• IC Block Diagrams
– SUB MAIN Board –
IC101 PST8435UL
GND 1
VDD 2
+
–
–
VREF
OUT
4
CD
3
IC103 TC74LCX74FT (EKJ)
IC104 CXD9981TN
14
1 2 3
4 5 6
7
13 12 11
10
9 8
VCC
GND
CK
CLR
CK
CLR
Q
PR
Q
Q
PR
Q
D
D
12
11
10
13
14
15
16
9
8
17
18
22
21
5
6
7
26
25
4
AGND
GVDD_C
GND
GND_B
OUT_D
GND_D
GND_C
GND_A
OUT_A
44
41
40
39
38
37
36
35
34
33
33
32
31
30
29
28
27
PWM
RCV.
OVERLOAD
PROTECTION
TEMP.
SENSE
GATE
DRIVE
ISENSE
POWER
ON
RESET
INTERNAL PULLUP
RESISTORS TO VREG
OUT_C
BST_C
PVDD_C
PVDD_D
PVDD_D
PVDD_D
NC
BST_D
GVDD_D
GVDD_D
BST_B
OUT_B
PVDD_B
GVDD_A
PVDD_A
PVDD_A
PVDD_A
VREG
VDD
PWM_D
/RESET_CD
PWM_C
M1
M2
M3
VREG
OC_ADJ
PWM_B
/RESET_AB
/SD
/OTW
PWM_A
2
NC
3
1
NC
GVDD_B
20
NC
19
NC
PROTECTION
AND
I/O LOGIC
BTL/P BTL-CONFIGURATION
PULLDOWN RESISTORS
BTL/P BTL-CONFIGURATION
PULLDOWN RESISTORS
BTL/P BTL-CONFIGURATION
PULLDOWN RESISTORS
BTL/P BTL-CONFIGURATION
PULLDOWN RESISTORS
UNDER
VOLTAGE
PROTECTION
VREG
43 BST_A
42 NC
24
23
23
VREG
4
4
CTRT.
TIMING
PWM
RCV.
GATE
DRIVE
CTRT.
TIMING
PWM
RCV.
GATE
DRIVE
CTRT.
TIMING
PWM
RCV.
GATE
DRIVE
CTRT.
TIMING
IC105 CXD9843AR
IC106 MM3404A18URE
12
11
10
9
8
7
6
5
4
3
VSUBC
XVSS
OUTR2
VSSR
OUTR1
VDDR
VSSL
VSSR
OUTL2
OUTL1
VSSL
VDDL
2
1
PWM
CLOCK
GENERATOR
(SECONDARY)
CLOCK
GENERATOR
(PRIMARY)
31
29
25 OVFFLAGL
26 SFLAG
27 INIT
30
S
g P
GAIN
CONTROL
INIT/
MUTE
SAMPLING
RATE
CONVERTER
FILTER &
LOW CUT
FILTER
LINER
INTERPOLATOR
'6
48
XFSOIN
47
XVDD
HPVDDL
46
45
HPOUTL1
HPVSSL
44
43
HPOUTL2
HPVDDR
42
41
HPOUTR1
HPVSSR
40
HPOUTR2
39
37
FSOCKO
38
FSOI
13
XOVSS
14
XFSOOUT
15
XOVDD
16
DVDD
17
DVSS
18
NSPMUTE
19
SOFTMUTE
20
PGMUTE
SERIAL
CONTROLLER
21
SCDT
22
SCSHIFT
23
SCLA
TCH
24
OVFFLAGR
28 MCKSEL
32 BFVDD
33 BFVSS
34 TEST
35 DVDD
36 XFSIIN
LRCK
BCK
DATA
VOUT
3
CE 1
GND 2
VDD
4
+
–
VOLTAGE
REFERENCE
CURRENT
LIMIT
BIAS
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