Sony SA-WCT180 Service Manual ▷ View online
SA-WCT180
SA-WCT180
17
17
3-5. PRINTED WIRING BOARD - MAIN Board -
A
B
C
D
E
1
2
3
4
MAIN BOARD
(COMPONENT SIDE)
MAIN BOARD
(CONDUCTOR SIDE)
•
: Uses unleaded solder.
• See page 13 for Circuit Boards Location.
3-6. PRINTED WIRING BOARD - KEY Board -
KEY BOARD
(COMPONENT SIDE)
KEY BOARD
(CONDUCTOR SIDE)
A
B
1
2
3
4
•
: Uses unleaded solder.
• See page 13 for Circuit Boards Location.
3-7. SCHEMATIC DIAGRAM - KEY Board -
A
3
2
B
1
KEY BOARD
ES1:
A:46-FH010T-04IF
B:46-FH006T-04HP
ES2:
ES2:
46-FH008T-03P
1
2
3
XP5
3PIN/2.0mm
XP5
3PIN/2.0mm
C1
7
N
C
/0.
1uF
C1
7
N
C
/0.
1uF
C1
9
N
C
/0.
1uF
C1
9
N
C
/0.
1uF
SW1
POWER
SW1
POWER
SW2
LINK
SW2
LINK
D
D
1
2
3
SA-WCT180
SA-WCT180
18
18
3-10. PRINTED WIRING BOARD - POWER Board -
POWER BOARD
(COMPONENT SIDE)
POWER BOARD
(CONDUCTOR SIDE)
A
B
C
D
E
1
2
3
4
5
6
3-8. PRINTED WIRING BOARD - LED Board -
LED BOARD
(COMPONENT SIDE)
LED BOARD
(CONDUCTOR SIDE)
A
1
2
3
•
: Uses unleaded solder.
• See page 13 for Circuit Boards Location.
3-9. SCHEMATIC DIAGRAM - LED Board -
PIN-1 GREEN
PIN-3 RED
ES1:
46-FF034T-04H, change to 3PIN
1
2
3
1
2
3
XS6
3PIN/2.0mm
XS6
3PIN/2.0mm
LED1
LED_3P_2PARTA
LED1
LED_3P_2PARTA
C3
N
C
/0.
1uF
C3
NC/0
.1
uF
C1
6
N
C
/0.
1uF
C1
6
NC/0
.1
uF
LED_LINK
LED_POWER
D
D
1
2
3
A
2
B
1
LED BOARD
•
: Uses unleaded solder.
• See page 13 for Circuit Boards Location.
SA-WCT180
SA-WCT180
19
19
3-11. SCHEMATIC DIAGRAM - POWER Board -
• See page 20 for IC Block Diagrams.
A
3
6
E
2
D
5
B
C
7
1
4
POWER BOARD
1
2
1
2
3
4
1
4
2
3
3
5
6
1
2
8
12
9
11
1
4
2
3
1
2
3
4
5
6
3
1
2
1
2
3
1
2
4
3
4
6
7
1
3
11
8
9
12
2
1
3
4
C534
0.1uF/50V/X7R
C534
0.1uF/50V/X7R
CY503
NC/220pF/250VAC
NC/220pF/250VAC
CY503
NC/220pF/250VAC
NC/220pF/250VAC
R543 100K
R543 100K
R570 0
R570 0
CN501
2PIN/7.92mm
CN501
2PIN/7.92mm
R502D
1M
R502D
1M
FB503
NC/FB90@100MHz
FB503
NC/FB90@100MHz
FB501
FB90@100MHz
FB501
FB90@100MHz
R536
2M/5%
R536
2M/5%
C549
0.1uF/50V/X7R
C549
0.1uF/50V/X7R
R542
1.5K
R542
1.5K
R531
NC
NC
R531
NC
NC
47uF/35V
CE531
47uF/35V
CE531
CY506
1000pF/250VAC
CY506
1000pF/250VAC
CN502
4PIN/2.5mm
4PIN/2.5mm
CN502
4PIN/2.5mm
4PIN/2.5mm
C535 220pF/50V/X7R
C535 220pF/50V/X7R
R541
680
R541
680
R502A
1M
R502A
1M
U531
TOP256EN
U531
TOP256EN
R565
22
22
R565
22
22
ZD531
12V
ZD531
12V
LIF501
LIF4-22-15
LIF501
LIF4-22-15
CY507
nc/470pF/250VAC
CY507
nc/470pF/250VAC
D533
NC/MUR420/4A/200V
D533
NC/MUR420/4A/200V
ZD532
27V
ZD532
27V
R533
0
0
R533
0
0
R534
47K/2W
R534
47K/2W
T5311
NC/ER28
NC/ER28
T5311
NC/ER28
NC/ER28
R510
NC/10
R510
NC/10
R502B
1M
R502B
1M
LIF502
NC/LIF4-22-15
LIF502
NC/LIF4-22-15
TR501
NTC/3ohm/5A
TR501
NTC/3ohm/5A
ZD534
NC/BZX79C24
ZD534
NC/BZX79C24
R540
0
0
R540
0
0
R557
20k
20k
R557
20k
20k
CY502
470pF/250VAC
470pF/250VAC
CY502
470pF/250VAC
470pF/250VAC
C536
100pF/1KV
C536
100pF/1KV
R544
75
R544
75
CY501
470pF/250VAC
470pF/250VAC
CY501
470pF/250VAC
470pF/250VAC
NC/MUR420/4A/200V
NC/MUR420/4A/200V
C533
2200pF/1KV
C533
2200pF/1KV
CN503
6PIN/2.5mm/120mm
CN503
6PIN/2.5mm/120mm
FB502
FB90@100MHz
FB502
FB90@100MHz
R532
NC
NC
R532
NC
NC
R569 0
R569 0
C531
4700pF/1KV
C531
4700pF/1KV
R539
100
R539
100
U533
AS431
U533
AS431
R537
2M/5%
2M/5%
R537
2M/5%
2M/5%
CX501
0.33uF/275VAC
CX501
0.33uF/275VAC
D538
SB20A200
D538
SB20A200
C532
0.1uF/50V/X7R
C532
0.1uF/50V/X7R
47uF/35V
CE532
47uF/35V
CE532
D531
FR207/2A/1000V
FR207/2A/1000V
D531
FR207/2A/1000V
FR207/2A/1000V
100uF/450V
CE502
100uF/450V
CE502
D532
FR104/1A/400V
D532
FR104/1A/400V
U532
LTV-817S-B
U532
LTV-817S-B
R538
5.6
5.6
R538
5.6
5.6
820uF/50V
CE533
820uF/50V
820uF/50V
CE533
T5311-1
EF25
EF25
T5311-1
EF25
EF25
R546
30k
R546
30k
BD1
KBP306
BD1
KBP306
F501
T3.15A 250V
F501
T3.15A 250V
RV501
VDR/560V
RV501
VDR/560V
R502C
1M
R502C
1M
++
C
S
D
V
F
CONTROL
X
C
S
D
V
F
CONTROL
X
++
++
++
-
+
-
+
Alternative
1.18V
2.18V
3.18V
4.GND
5.GND
6.GND
PG
HV
VDD
D
FB
HV
+18V
HV
GND
VDD
D
FB
PG
GND
+18V
1
2
1
2
3
4
D
P-GND
FB
VDD
N.C
A8
A10
A9
A10
1
2
3
4
5
6
D
P-GND
FB
VDD
N.C
A12
A9
A12
A13
SA-WCT180
SA-WCT180
20
20
• IC Block Diagrams
– MAIN Board –
U2 EUP3482ADIR1
U2 EUP3482ADIR1
– POWER Board –
U531 TOP256EN
U531 TOP256EN
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• IC Pin Function Description
MAIN BOARD U6 STA369BWS (DIGITAL AMP)
Pin No.
Pin Name
I/O
Description
1
GND_SUB
-
Ground terminal
2
SA
I
I2C select address signal input terminal Fixed at “H” in this unit
3
TEST_MODE
I
Fixed at “L” in this unit
4
VSS
I/O
Internal reference voltage (–3.3V) input/output terminal
5
VCC_REG
I/O
Internal reference voltage input/output terminal
6
OUT2B
O
Audio signal (subwoofer) output terminal
7
GND2
-
Ground terminal
8
VCC2
-
Power supply terminal
9
OUT2A
O
Audio signal (subwoofer) output terminal
10
OUT1B
O
Audio signal (subwoofer) output terminal
11
VCC1
-
Power supply terminal
12
GND1
-
Ground terminal
13
OUT1A
O
Audio signal (subwoofer) output terminal
14
GND_REG
-
Internal reference ground terminal
15
VDD
I
Internal reference voltage (+3.3V) input terminal
16
CONFIG
I
Parallel mode command signal input terminal Fixed at “H” in this unit
17
OUT3B/FFX3B
O
Not used
18
OUT3A/FFX3A
O
Not used
19
EPAD/OUT4B
O
Not used
20
TWARN/OUT4A
I/O
Not used
21
VDD_DIG
-
Power supply terminal (+3.3V)
22
GND_DIG
-
Ground terminal
23
PWRDN
I
Muting signal input terminal
24
VDD_PLL
-
Power supply terminal (+3.3V) (for PLL)
25
FILTER_PLL
I
Connection to PLL fi lter terminal
26
GND_PLL
-
Ground terminal (for PLL)
27
XTI
I
Master clock signal input terminal
28
BICKI
I
Bit clock signal input terminal
29
LRCKI
I
L/R sampling clock signal input terminal
30
SDI
I
Audio data (subwoofer) input terminal
31
RESET
I
Reset signal input terminal
32
INT_LINE
O
Fault signal output terminal
33
SDA
I
Serial data input terminal
34
SCL
I
Clock signal input terminal
35
GND_DIG
-
Ground terminal
36
VDD_DIG
-
Power supply terminal (+3.3V)
37
GND
-
Ground terminal
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