Sony SA-WCT260 Service Manual ▷ View online
SA-WCT260
SA-WCT260
17
17
3-4. PRINTED WIRING BOARDS - MAIN Section (2/2) -
•
: Uses unleaded solder.
R231
R232
R233
CL118
CL120
CL123
CL124
CL129 CL130
CL131
CL132
CL134
CL135
CL136
CL137
CL141
CL144
CL151
R104
R108
R110
R111
R113
R114
R117
R120
R124
R125
R126
R128
R129 R131
C105
R148
R149
R152
C116
R153
R154
JL104
JL105
C122
JL106
JL107
JL108
JL109
R162
C126
C127
R164
R165
R167
JL1
10
JL111
JL1
12
JL113
JL114
C130
JL115
JL116
JL117
C133
JL118
C134
JL119
R171
C135
R172
C136
R175
R176
JL120
R178
JL121
JL122
JL123
JL124
JL125
JL126
JL127
JL3000
JL3001
JL129
C148
C157
JL140
JL142
JL144
C161
JL147
JL148
D107
JL150
JL151
JL152
JL153
C172
JL156
JL158
C174
JL159
JL160
JL161
C186
C191
C196
C197
1
9
1
2
1
4
L101
CN104
CN105
CN106
S100
S101
C163
C169
C173
C180
C182
1
3
CN901
D901
CL900
CL901
CL902
R900
R901
SECURE LINK
SUB MAIN BOARD
(CONDUCTOR SIDE)
SP100
1-883-799-
A
B
C
D
E
F
G
H
1
2
3
4
5
6
7
8
9
10
11
12
13
FRONT LED BOARD
(SIDE A)
FRONT LED BOARD
(SIDE B)
/
1-883-801-
12
(13)
11
(13)
1-883-801-
12
(13)
POWER
BOARD
CN901
>01P
A
A
K
K
K
D901
A
K
A
(GRN)
(RED)
(Page 18)
SA-WCT260
SA-WCT260
18
18
3-5. PRINTED WIRING BOARD - POWER Board -
•
: Uses unleaded solder.
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
C921
C900
C902
C902
C905
C906
C906
C903
C904
C904
C935
C936
C936
1-882-860-
12
(12)
E
E
E
MAIN POWER
TRANSFORMER
E
PATTERN
SPARK-GAP
AC1
(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)
(EXCEPT US, CND)
(EXCEPT US, CND)
(EXCEPT US, CND)
(US, CND)
(US, CND)
(EXCEPT US, CND, BR)
(US, CND, BR)
(EXCEPT US, CND, BR)
(US, CND)
(EXCEPT US, CND)
(US, CND)
(EXCEPT US, CND)
(US, CND)
(US, CND, BR)
A
B
C
D
1
2
3
4
5
6
7
8
(EXCEPT US, CND, BR)
3
1
2
4
SUB MAIN
BOARD
CN104
>01P
(EXCEPT BR)
LF900, 901
LINE FILTER
(Page 17)
Ver. 1.1
SA-WCT260
SA-WCT260
19
19
3-6. SCHEMATIC DIAGRAM - POWER Board -
• See page 20 for IC Block Diagrams.
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
1kV
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
SARS10
D920
1
3
4
5
6
7
IC920
D
S/GND
Vcc
OLP/SS
FB
OCP/BD
D3SB60F3
D900
D924
RT1P141M-TP-1
Q922
RT1N441M-TP-1
Q921
CL921
CL922
CL923
CL905
CL920
CL940
CL960
C935
200V
330
C936
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
2
NC
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
2
NC
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
2SA1980-AT
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
4
3
1
2
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)
Q921, 922
OVER LOAD PROTECT
B+ SWITCH
LINE FILTER
LINE FILTER
R923
82k 3W
(EXCEPT US, CND)
(EXCEPT US, CND)
100k 3W (US, CND)
470p 250V (EXCEPT US, CND)
100P 250V (US, CND)
C907
STR-W6765N (EXCEPT US, CND)
STR-W6735N (US, CND)
0.36 2W (EXCEPT US, CND)
0.22 2W (US, CND)
R921
0.33 2W (US, CND)
R922
0.47 2W (EXCEPT US, CND)
REGULATOR
(US, CND)
(EXCEPT US, CND)
REGULATOR
(US, CND)
(EXCEPT US, CND)
(EXCEPT US, CND)
(US, CND)
(EXCEPT US, CND)
(EXCEPT US, CND)
(EXCEPT US, CND, BR)
(US, CND)
(US, CND)
(EXCEPT US, CND, BR)
(US, CND, BR)
(US, CND, BR)
(EXCEPT US, CND, BR)
PATTERN
SPARK-GAP
CAM901
(AC IN)
AC1
5A 125V (US, CND)
T3.15AH 250V (EXCEPT US, CND, BR)
T5AH 250V (BR)
F900
POWER ON/OFF
CONTROL
POWER VOLTAGE
CONTROL
Q961, 962
SHUNT REGULATOR
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
D1NL40-TA2 (EXCEPT US, CND)
D1NL20U-TR2 (US, CND)
D901, 924
BOARD
CN104
>01S
SUB MAIN
(EXCEPT BR)
130 450V (BR)
100 450V (EXCEPT US, CND, BR)
C936
Ver. 1.1
SA-WCT260
SA-WCT260
20
20
• IC Block Diagrams
– SUB MAIN Board –
IC101 PST8435UL
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
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
IC105 CXD9843AR
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