Sony SA-WCT770 Service Manual ▷ View online
SA-WCT770
SA-WCT770
17
17
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
• All capacitors are in μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
specifi ed.
• f : Internal component.
• 2 : Nonfl ammable resistor.
• 5 : Fusible resistor.
• C : Panel designation.
• 2 : Nonfl ammable resistor.
• 5 : Fusible resistor.
• C : Panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
• A : B+ Line.
• Voltages and waveforms are dc with respect to ground in
• Voltages and waveforms are dc with respect to ground in
wireless connection to the bar speaker (SA-CT770).
no mark : POWER ON
• Voltages are taken with VOM (Input impedance 10 M
• Voltages are taken with VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F :
F :
AUDIO
(ANALOG)
J :
AUDIO
(DIGITAL)
• Abbreviation
CND : Canadian model
TW :
CND : Canadian model
TW :
Taiwan
model
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• f : Internal component.
•
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• f : Internal component.
•
: Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)
• Abbreviation
CND : Canadian model
TW :
CND : Canadian model
TW :
Taiwan
model
• Indication of transistor.
C
B
These are omitted.
E
Q
C E
B
These are omitted.
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Waveforms
– SUB MAIN Board –
Note: When the complete SUB MAIN board is replaced, re-
fer to “NOTE OF REPLACING THE IC104 ON THE
SUB MAIN BOARD AND THE COMPLETE SUB
MAIN BOARD” on page 4.
SUB MAIN BOARD AND THE COMPLETE SUB
MAIN BOARD” on page 4.
Note: When the complete SUB MAIN board is replaced, re-
fer to “NOTE OF REPLACING THE IC104 ON THE
SUB MAIN BOARD AND THE COMPLETE SUB
MAIN BOARD” on page 4.
SUB MAIN BOARD AND THE COMPLETE SUB
MAIN BOARD” on page 4.
1
IC100
7 (Xout)
1 V/DIV, 20 ns/DIV
50 ns
2 Vp-p
2
IC105
qf (XFSOOUT)
2 V/DIV, 20 ns/DIV
21 ns
4.5 Vp-p
20.8
Ps
3.3 Vp-p
3
IC105
wl (LRCK)
1 V/DIV, 10
Ps/DIV
4
IC105
e; (BCK)
1 V/DIV, 200 ns/DIV
326 ns
3.3 Vp-p
5
IC107
4
1 V/DIV, 20 ns/DIV
20.6 ns
3.2 Vp-p
6
IC103
9 (2Q)
2 V/DIV, 50 ns/DIV
81 ns
4.1 Vp-p
Note: The components identifi ed by mark 0 or
dotted line with mark 0 are critical for safety.
Replace only with part number specifi ed.
Note: Les composants identifi és par une marque
0 sont critiques pour la sécurité.
Ne les remplacer que par une piéce portant
le numéro spécifi é.
le numéro spécifi é.
Ver. 1.1
SA-WCT770
SA-WCT770
18
18
4-2. PRINTED WIRING BOARD - SUB MAIN Board (Side A) -
•
: Uses unleaded solder.
Note: When the IC104 on the SUB MAIN board is replaced, refer to “NOTE OF REPLACING THE
IC104 ON THE SUB MAIN BOARD AND THE COMPLETE SUB MAIN BOARD” on page 4.
E
1
3
4
6
6
1
3
3
4
6
E
1
3
4 6
E
1 3
4
6
E
1 3
4
6
E
E
D
G
S
9
1
1
2
24
23
1
4
3
1
1
3
8
1
1
16
17
32
33
48
49
64
3
4
1
2
2
8
14
1
7
44
22
23
1
24
37
13
48
12
25
1
36
3
4
1 2
3
1
4
5
3
4
1
2
2
1
5
R216
R217
R219
R221
R222
R223
R224
R225
R230
R231 R232 R233
R234
R235
R236
C201
C203
C204
C205
R242
C206
R243
C207
C209
R249
C210
C211
CL100
CL101 CL102
CL103
CL104
CL105
CL106
CL107
CL108
CL109
CL110
CL111
CL112
CL113
CL114
CL115
CL116
CL117
CL119
CL120
CL121
CL122
CL125
CL126
CL127
CL128
CL129
CL130
CL131
CL132
CL133
CL134
CL135
CL136
CL137
CL138
CL139
CL140
CL142
CL143
CL145
CL146
Q102
Q103
CL147
Q104
Q105
CL149
Q106
Q108
SL100
Q109
SL101
SL102
CL150
CL151
CL152
CL153
Q110
CL154
Q111
CL155
Q112
CL156
CL157
Q113
CL158
Q114
CL159
CL160
CL161
CL162
CL163
CL164
CL165
CL166
CL168
CL169
SL122
CL170
CL171
CL172
CL173
CL174
CL175
CL176
FB100
FB101
FB102
FB103
FB104
FB105
R103
R104
R105
R108
R109
R110
R111
R112
R113
R114
R115
R117
R118
R119
CN102
R120
R121
CN107
R124
R125
CN109
R126
R127
R128
CN111
CN113
R130
CN114
R131
R135
C101
C102
C103
C104
C105
C106
C107
C108
C109
R148
R149
C110
X100
X101
C112
C113
C114
C115
R152
C116
R153
C118
R154
C119
R155
R156
R158
R159
C120
C122
R160
C125
R161
C126
C127
R164
C129
R165
R167
C130
C131
C132
C133
C134
R171
C135
R172
C136
R173
C137
R174
R175
R176
R177
R178
R179
C140
C141
R180
R181
R182
R183
R184
C148
R185
R186
R187
JL130
R188
JL133
JL134
JL136
C152
R190
JL138
C155
R191
R192
C157
R193
C158
R194
R195
R196
R197
R198
R199
JL141
JL143
C161
JL145
D101
JL146
C162
C165
C166
RB002
C167
RB003
C170
D111
D112
C172
C174
ET100
C175
C177
C178
C179
IC100
IC101
IC103
IC104
C184
C185
IC105
C186
IC106
IC107
C187
C188
IC108
C189
IC109
C191
C194
C195
C196
C197
C198
C199
C05
R200
R202
R203
R205
R206
R208
R209
L001
L002
SUB MAIN BOARD
(SIDE A)
1-889-802-
A
K
SUB KEY
BOARD
CN002
>01P
(NC)
(CHASSIS)
RF1
RF MODULATOR
(SWA12-4V RX)
FFC1
SP1
(SUBWOOFER)
K
A
K
POWER
BOARD
CN901
>03P
SUB LED
BOARD
CN901
>02P
A
B
C
D
E
F
G
1
2
3
4
5
6
7
8
9
10
11
12
11, 12
(11, 12)
(Page 24)
(Page 22)
(Page 24)
Ver. 1.1
SA-WCT770
SA-WCT770
19
19
4-3. PRINTED WIRING BOARD - SUB MAIN Board (Side B) -
•
: Uses unleaded solder.
CL141
CL144
CL148
CL177
CL178
CL179
CL180
CL181
CL182
CL183
CL184
CL185
CL186
CL187
CL188
CL189
CL190
CL191
CL192
JL104
JL105
JL106
JL107
JL113
JL114
JL115
JL116
JL117
JL118
JL122
JL123
JL124
JL125
JL126
JL127
JL128
JL129
JL131
JL132
JL135
JL137
JL139
JL144
JL148 JL150
JL152
JL153
JL157
JL158
JL159
JL160
JL161
JL162
JL163
JL164
JL165
JL166
JL167
JL168
JL169
JL170
SUB MAIN BOARD
(SIDE B)
1-889-802-
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
10
11
11, 12
(11, 12)
Ver. 1.1
SA-WCT770
SA-WCT770
20
20
4-4. SCHEMATIC DIAGRAM - SUB MAIN Board (1/2) -
• See page 17 for Waveforms. • See page 25 for IC Block Diagrams. • See page 28 for IC Pin Function Description.
1
3.5
0
3.5
3.5
3.5
3.5
3.2
3.5
2
3.5
4.1
0
4.1
4.1
0.1
0.6
3.4
0.1
0
3.5
3.2
0
3.5
3.4
3.5
0
0
0
4.1
4.1
0
0
4
4.1
0
0
3.5
3.2
3.5
3.5
1.8
3.5
3.5
3.5
3.5
1.8
3.3
0
3.5
2.9
3.2
3.4
3.5
3.5
3.5
0.3
3.4
4.1
C102
0.1
C112
0.1
0.1
C103
0.1
C109
0.1
C107
0.022
C114
0.01
C108
0.22
C106
0.1
C104
0.1
C101
0.01
C105
0.1
C110
0.1
C116
16V
100
C115
C201
100
CL1
12
CL128
CL1
17
CL140
CL125
CL166
CL1
19
CL1
15
CL109
CL106
CL100
CL105
CL102
CL104
CL103
CL107
CL122
CL121
CL126
CL101
CL164
CL163
C
L111
CL1
14
CL108
CL139
CL138
CL137
CL136
CL176
CL135
CL170
CL175
CL132
CL174
CL131
CL171
CL130
CL113
CL129
CL173
CL1
16
CL134
CL133
CL172
CL120
CL1
10
CL127
CL168
CL165
CL169
3P
CN111
1
LED(R)
2
LED(G)
3
GND
3P
CN113
1
GND
2
KEY_PAIR
3
KEY_POWER
9P
CN102
D-GND
1
TXD1
2
RTS1
3
3.3V
4
CLK1
5
RXD1
6
CNVSS
7
RESET
8
D-GND
9
CN107
+4V
1
+4V
2
DOUT_RX
3
Link State
4
INT
5
RESETN
6
SCL_STX
7
SDA_STX
8
SCL_MRX
9
SDA_MRX
10
GPIO3
11
GND
12
POWER
13
LRCK1_TX
14
GPIO2
15
MCK_OUT_RX
16
DIN_TX
17
GPIO
18
GPIO
19
NC
20
NC
21
BCK0_RX
22
WCK0_RX
23
GND
24
DA2J10100L
D101
FB102
FB100
PST8435UL
IC101
1
GND
2
VDD
3
CD
4
OUT
R5F212BASNFP
IC100
1
NO USE
2
S-AIR_DA
TA
3
FW_MODE
4
NO USE
5
NO USE
6
RESET
7
Xout
8
Vss
9
Xin
10
Vcc1
11
NO USE
12
P_CONT2
13
P_CONT1(3.3V)
14
P_CONT_PVDD
15
NO USE
16
NO USE
17
NO USE
18
NO USE
19
NO USE
20
NO USE
21
LED_GREEN
22
LED_RED
23
PAIRING_LED
24
NO USE
25
DAMP_SHIFT
26
NO USE
27
DAMP_SCDT
28
DRIVE_RST(EN)
29
DAMP_INIT
30
DAMP_OVF
31
DAMP_LATCH
32
DAMP_SOFT_MUTE
33
DAMP_OVF2
34
DAMP_LA
TCH2
35
NO USE
36
AC_CUT
37
FW_TxD
38
FW_RxD
39
NO USE
40
NO USE
41
NO USE
42
PVDD_SD_EN
43
DC_DET
44
NO USE
45
DRIVE_SD
46
S-AIR FREQ DET
47
S-AIR DET
48
S-AIR_GPIO2
49
KEY_POWER
50
S-AIR_RESET
51
KEY_PAIRING
52
SUR_MODE_SW
53 SHIMUKE
54 MODEL
55 FAN_ON
56 FAN_DET
57 S-AIR_RF_FB
58 NO USE
59 Vss
60 NO USE
61 Vref
62 Vcc1
63 NO USE
64 S-AIR_CLK
JL167
JL129
JL161
JL117
JL168
JL158
JL130
JL163
JL160
JL114
JL150
JL115
JL106
JL107
JL159
JL104
JL105
JL148
JL123
JL128
JL124
JL125
JL126
JL113
JL164
JL118
JL170
JL169
JL162
JL166
JL116
JL122
JL165
HN1C01FU
Q103
1
2
3
4
5
6
Q109
1
2
3
4
5
6
RN2902
Q111
1
2
3
4
5
6
S
Q114
LSCR523UBFS8TL
Q102
Q113
100
RB002
100k
R115
R125
100
R149
100
R160
220
100k
R249
1k
R105
R124
15k
R174
220k
R180
2.2k
1k
R164
10k
R121
R154 100
47k
R112
47k
R118
47k
R127
10k
R109
R158
100
100
R135
4.7k
R128
R155
10k
R159
330
R182
100k
4.7k
R148
4.7k
R110
0
R120
R108
10k
10k
R104
100k
R117
100k
R114
1k
R103
10k
R113
100
R131
R161
0
R152
100
R153 100
R156
100k
R119
10k
R130
10k
4.7k
R111
4.7k
R126
SL102
SL101
20MHz
X100
CL182
CL183
CL184
CL185
CL186
CL187
CL188
CL189
CL190
CL191
CL192
C113
0.1
FB105
FB103
FB104
GPI02
RXD1
CNVSS
RXD1
RESN
LRCK
BCK
TXD1
PD-OUT
SCL
TXD1
DETECT
CNVSS
RESET
RESET
SDA
DATA
RESN
GPI02
SCL
256FS
SDA
DETECT
SYSTEM CONTROLLER
IC100
1
2
3
4
5
6
7
8
9
11
10
12
13
14
15
16
17
VOLTAGE DETECT
IC101
RN1902
(1/2)
SUB MAIN BOARD
SUB LED
>02S
CN901
BOARD
(2/2)
SUB MAIN
>001S
BOARD
SUB KEY
>01S
CN002
BOARD
SHUT DOWN
SWITCH
24P
10V
RESET SWITCH
SSM3J325F, LSOYF
LTC014EUBFS8TL
Q113, 114
B+ SWITCH
LED DRIVE
LED DRIVE
(NC)
(SWA12-4V RX)
RF1
RF MODULATOR
FFC1
10
11
12
13
14
15
G
16
H
I
F
1
C
J
D
6
E
2
B
3
A
4
5
7
8
9
(Page 24)
(Page 21)
(Page 24)
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