Sony HT-CT550W / STR-CT550WT Service Manual ▷ View online
STR-CT550WT
STR-CT550WT
21
21
5-10. SCHEMATIC DIAGRAM - MAIN Board (3/7) -
• See page 15 for Waveforms. • See page 32 for IC Block Diagrams.
IC B/D
IC B/D
IC B/D
(2/7)
BOARD
MAIN
15
17
(5/7)
MAIN
BOARD
20
(1/7)
MAIN
BOARD
MAIN
21
(1/7)
BOARD
MAIN
22
(4/7)
BOARD
MAIN
14
(2/7)
BOARD
16
15
14
13
5
6.5
3.3
1.3
2.5
0
0
0
3.3
0
0
0
0
0
3.3
2.5
1.2
1.7
3.3
0
3.3
2.5
1.7
1.7
2.5
5
2.5
2.5
2.5
3.3
1.8
1.7
2.7
0
0
3.3
2.8
0
0
0
3.3
3.3
0.9
1.2
1.6
1.6
1.6
1.6
1.6
0.9
1.2
1.6
3.3
1.6
1.6
1.6
1.6
3.3
3.3
4
4.7k
R1057
4.7k
R1055
1k
R1115
5
4
3
2
1
TK11150CSCL-G
IC1008
CTRL
GND
CNp
V
out
Vi
n
100
R1018
JL1002
JL1003
JL1004
JL1026
1000p
C1073
MLPCM_D1
MLPCM_D2
DIR_XSTATE
DGND
DIR_ERR
DIR_NLPCM
LRCK
BCK
MCK
DIR/AD/D0
1
C1041
JL1068
220uH
L1003
MC2840-T112-1
D1004
AGND
SW3.3V
DGND
A_VCC
COAX_DVD
LCH_OUT
RCH_OUT
CL1046
CL1043
680
R1050
CL1063
CL1053
CL1049
CL1058
CL1055
R1075
1M
100
R52
CL1064
10k
R1012
R1056
100
CL1051
CL1069
100
R1100
CL1047
100
R1043
0
R1
186
R1083
100
100
R1099
100
R1078
CL1073
100
R1071
CL1041
CL1044
CL1054
100
R1184
100
R1045
CL1060
CL1050
CL1062
100
R1183
R1079
100
CL1052
100
R1044
CL1059
CL1045
R1058
100
CL1061
CL1066
CL1067
100
R1046
R1185
100
R1054
100
100
R1097
100
R1098
100
R1060
100
R51
CL1048
CL1042
CL1075
OPT_SAT
JL1028
JL1029
OPT_TV
CL1076
CL1071
CL1072
CL1070
CL1074
MLPCM_D3
100k
R1131
100k
R1134
10uH
L1002
10uH
L1005
0
R1102
1
2
24.576MHz
X1002
0.22uH
L1004
10
C1047
10
C1027
10
C1028
12p
C1019
12p
C1018
100
R1076
68
R48
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TC74LCX541FT(EKJ)
IC1001
MAIN_D3CSW
MAIN_D1FLFR
MAIN_BCK
MAIN_LRCK
MAIN_MCK
AMP_D1FLFR
AMP_LRCK
AMP_MCK
10k
R1013
C1011
0.01
D3.3V
R1035
0
AMP_BCK
22
R1158
22
R1159
22
R1162
22
R1161
22
R1160
100
R1163
100
R1164
100
R1166
100
R1167
100
R1168
100
R1169
JL1005
SW4V
CL1016
CL1017
CL1018
CL1019
1000p
C1023
1k
R1051
CL66
DA2J10100L
D53
0.1
C1024
10
C1004
10
C1051
100p
C1031
100p
C1035
10V
470
C1025
10V
470
C1021
PCM9211PTR
IC1011
1
ERROR/INT0
2
NPCM/INT1
3
MPIO_A0
4
MPIO_A1
5
MPIO_A2
6
MPIO_A3
7
MPIO_C0
8
MPIO_C1
9
MPIO_C2
10
MPIO_C3
11
MPIO_B0
12
MPIO_B1
13 MPIO_B2
14 MPIO_B3
15 MPO0
16 MPO1
17 DOUT
18 LRCK
19 BCK
20 SCKO
21 DGND
22 DVDD
23 MDO/ADR0
24 MDI/SDA
25
MC/SCL
26
MS/ADR1
27
MODE
28
RXIN7/ADIN0
29
RXIN6/ALRCKI0
30
RXIN5/ABCKI0
31
RXIN4/ASCKI0
32
RXIN3
33
RXIN2
34
RST
35
RXIN1
36
VDDRX
37
RXIN0
38
GNDRX
39
XTI
40
XTO
41
AGND
42
VCC
43
FILT
44
VCOM
45
AGNDAD
46
VCCAD
47
VINL
48
VINR
R1080
220
0.68uH
L1007
330
R1165
220
R1053
220
R1059
JL1072
JL1082
JL1083
JL1084
JL1085
JL1086
JL1087
JL1088
JL1089
JL1090
JL1091
30P
CN1006
1
RESERVED
2
DETECT
3
RESERVE
4
NC
5
NC
6
LRCK_X
7
BCK_X
8
SDIO_X
9
LRCK_W
10
BCK_W
11
SDIO_W
12
GND
13
+3.3V
14
+3.3V
15
GND
16
GND
17
256FS
18
INT
19
PD-OUT_Airoha
20
NC
21
I2CSDA
22
I2CCLK
23
RESET
24
GND
25
SDIO_Y
26
BCK_Y
27
LRCK_Y
28
SDIO_Z
29
BCK_Z
30
LRCK_Z
JL1092
0.1
C1117
0.068
C1112
4700p
C1110
0.1
C1113
10
C1116
S-1170B33UC-OTSTFG
IC50
1
CONT
2
VSS
3
NC
4
VIN
5
VOUT
1k
R1052
0.1
C1022
DIR_CLK
DIR_CE
DIR_ERR
DIR_NLPCM
DIR_DO
DIR_DI
DIR_XST
A
TE
HDMI_ARC
DIR_RST
DIR_ERR
DIR_NLPCM
DIR_XSTATE
HDMI_MCK
HDMI_BCK
HDMI_LRCK
HDMI_SD0
HDMI_SD1
HDMI_SD2
HDMI_SD3
WSS_DET
WSS_RF
WSS_I2C_SDL
WSS_I2C_SDA
DIR_ZERO
HDMI_SPDIF
WSS_INT
WSS_RESET
3
9
5
1
7
2
8
4
I2S BUFFER
IC1001
DIGITAL AUDIO INTERFACE RECEIVER
IC1011
+5V REGULATOR
IC1008
IC50
+3.3V REGULATOR
(3/7)
MAIN BOARD
TRANSCEIVER
(EZW-RT50)
WIRELESS
EZW-RT50/
EZW-RT20
A/D CONVERTER,
13
A
15
E
D
C
4
14
16
8
G
B
1
11
3
10
I
9
J
F
H
6
2
5
7
12
17
18
GND
VCC
(Page 19)
(Page 19)
(Page 22)
(Page 20)
(Page 23)
(Page 20)
STR-CT550WT
STR-CT550WT
22
22
5-11. SCHEMATIC DIAGRAM - MAIN Board (4/7) -
• See page 15 for Waveforms. • See page 32 for IC Block Diagrams.
IC B/D
IC B/D
IC B/D
BOARD
MAIN
11
(6/7)
MAIN
BOARD
(3/7)
22
MAIN
BOARD
(2/7)
19
MAIN
BOARD
(2/7)
13
17
3.3
3.3
1.7
1.7
0.6
3.3
1.8
1.6
12
3.3
1.6
3.3
1.6
3.3
3.3
3.3
1.6
3.3
1.6
12
12
0
0
16
16
3.3
0.7
6.7
6
1.6
3.3
1.6
1.6
3.3
1.6
12
27.3
32.3
32.3
16
16
32.3
27.3
27.3
32.3
16
16
32.3
32.3
27.3
12
16
16
0
3.3
0
0
0.6
12
16
16
0
0
16
16
0
3.3
3.3
0
0
3.3
3.3
3.3
1.8
3.3
3.3
1.8
3.3
1.6
1.6
1.6
3.3
3.3
3.3
1.6
3.3
AMP_D1FLFR
AMP_BCK
AMP_LRCK
AMP_3.3V
12V
DGND
AMP_MCK
OVF_1
DRIVER_SD
DRIVER_RST
DAMP_LAT1
SC_SHIFT
SC_DT
S_MUTE
NS_INIT
DGND
100
R3069
R3003
6.8k
2200p
C3168
100k
R3554
JL3014
100
R3066
1000p
C3070
JL3012
0
R3555
470
R3011
1
C3052
C3172
1000p
1M
R3052
10k
R3013
2200p
C3170
100
R3102
C3001
0.1
100k
R3126
100
R3073
JL3013
R3002
6.8k
100
R3151
2200p
C3167
2200p
C3117
R3001
4.7k
JL3104
JL3101
2200p
C3118
2200p
C3120
C3173
1000p
C3122
1000p
100k
R3127
0
R3104
100k
R3177
100
R3152
JL3011
JL3103
470
R3012
JL3002
2200p
C3169
1k
R3064
JL3102
2200p
C3119
R3009
100k
JL3001
JL3029
100k
R3176
C3123
1000p
JL3030
100k
R3175
100
R3101
JL3015
100
R3072
100k
R3125
JL3056
0
R3022
1k
R3062
DC_SD
22
R3054
0.01
C3071
0
R3065
0.01
C3501
10k
R3098
2SC5053T100Q
Q3000
JL3313
0.1
C3012
0.1
C3014
0.1
C3020
0.1
C3013
0.1
C3017
0.1
C3016
0.1
C3015
0.1
C3555
L3013
10uH
35V
2200
C3116
35V
2200
C3166
NSP_MUTE
L3103
L3153
L3152
L3102
5
4
3
2
2
1
1
TC7SHU04FU
IC3007
NC
GND
VCC
100
R3068
44
38
39
40
41
42
43
7
6
5
4
3
2
1
37
36
35
34
33
32
8
9
10
11
28
29
30
31
17
16
15
14
13
12
27
26
25
24
23
22
21
20
19
18
CXD9981TN
IC3100
GVDD_B
OTW
NC
NC
SD
PWM_A
RESET_AB
PWM_B
OC_ADJ
GND
AGND
VREG
M3
M2
M1
PWM_C
RESET_CD
PWM_D
NC
NC
VDD
GVDD_C
GVDD_D
BST_D
NC
PVDD_D
PVDD_D
OUT_D
GND_D
GND_C
OUT_C
PVDD_C
BST_C
BST_B
PVDD_B
OUT_B
GND_B
GND_A
OUT_A
PVDD_A
PVDD_A
NC
BST_A
GVDD_A
0
R3020
0
R3021
0
R3070
0
R3071
0
R3108
22k
R3106
3.3
R3119
3.3
R3120
3.3
R3169
3.3
R3170
R3513
22k
0.01
C3502
0.1
C3105
0.1
C3103
0.1
C3153
0.1
C3155
49.152MHz
X3051
DZ2J140M0L
D3510
MM3404A18URE
IC3050
1
CE
2
GND
3
V
out
4
Vi
n
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37 38 39 40 41 42 43 44 45 46 47 48
CXD9843AR
IC3010
XVSS
VSUBC
VSSR
OUTR2
VDDR
OUTR1
VSSR
VSSL
OUTL2
VDDL
OUTL1
VSSL
XOVSS
XFSOOUT
XOVDD
DVDD
DVSS
NSPMUTE
SOFTMUTE
PGMUTE
SCDT
SCSHIFT
SCLA
TCH
OVF_R
OVF_L
SFLAG
INIT
MCKSEL
LRCK
BCK
DATA
BFVDD
BFVSS
TEST
DVDD
XFSIIN
FSOCKO
FSOI
HPOUTR2
HPVSSR
HPOUTR1
HPVDDR
HPOUTL2
HPVSSL
HPOUTL1
HPVDDL
XVDD
XFSOIN
10uH
L3052
10uH
L3051
10uH
L3053
2.2
C3171
2.2
C3121
10
C3054
10
C3056
10
C3011
2.2
C3174
2.2
C3175
2.2
C3124
2.2
C3125
2.2
C3108
2.2
C3113
2.2
C3158
2.2
C3163
0.1
C3107
0.1
C3106
0.1
C3157
0.1
C3156
3
2
1
4
10uH
L3151
3
2
1
4
10uH
L3101
10
C3510
R3512
22k
1
C3104
100p
C3069
2SC4154TP-1EF
Q3002
2SC4154TP-1EF
Q3551
2SC4154TP-1EF
Q3552
2SC4154TP-1EF
Q3554
0
R3017
22
R3015
22
R3014
JL3053
JL3054
100
R3061
+
–
+
–
TB3001
10k
R3556
32V
DGND
22
R3005
JL3003
JL3004
16V
C3000
100
1
2
2P
CN3006
+FAN
GND
10
C3091
10
C3100
330
R3053
10p
C3058
8p
C3060
150
R3055
RT3AMMAM1-T111-1F
Q3101
RT3AMMAM1-T111-1F
Q3151
22k
R3510
SCDT
DRIVER_RESET
AMP_LRCK
AMP_BCK
INIT
NSP-MUTE
SCDT
OVF
SOFT_MUTE
SHIFT
LAT1
SOFT_MUTE
DC_DET
NSP-MUTE
LAT1
SHIFT
SD
SD
AMP_D1FLFR
DRIVER_RESET
SD
OVF
AMP_BCK
AMP_LRCK
AMP_MCK
DC_DET
INIT
AMP_MCK
AMP_D1FLFR
IC3100
POWER AMP
CLOCK BUFFER
IC3007
+1.8V REGULATOR
IC3050
STREAM PROCESSOR
IC3010
(4/7)
MAIN BOARD
M3001
M
(FAN)
(CHASSIS)
CAM303
CAM302
(CHASSIS)
Q3000, 3002
FAN MOTOR DRIVE
DC DETECT
PROTECT DETECT
Q3552, 3554
-2
-1
-1
-2
OVER LOAD
DETECT
DETECT
OVER LOAD
(L)
(R)
SS-CT550W
ONLY FOR
SPEAKERS
13
A
15
E
D
C
4
14
16
8
G
B
1
11
3
10
I
9
F
H
6
2
5
7
12
18
17
(Page 21)
(Page 20)
(Page 20)
(Page 24)
Note: When IC3100 on the MAIN board is replaced, spread the
compound referring to “NOTE OF REPLACING THE
IC3100 ON THE MAIN BOARD AND THE COMPLETE
MAIN BOARD” on servicing notes (page 3).
IC3100 ON THE MAIN BOARD AND THE COMPLETE
MAIN BOARD” on servicing notes (page 3).
STR-CT550WT
STR-CT550WT
23
23
5-12. SCHEMATIC DIAGRAM - MAIN Board (5/7) -
• See page 32 for IC Block Diagrams.
23
BOARD
MAIN
(2/7)
MAIN
BOARD
17
(3/7)
MAIN
BOARD
18
(7/7)
IC B/D
5
2.9
2.9
2.9
2.9
0
0
3.1
1.5
1.5
2.9
2.9
2.9
2.9
1.6
2.7
3.1
0
3.1
0
3.3
0
JL210
JL209
100k
R234
100
R228
100k
R210
100
R225
100k
R212
R221
100k
100k
R235
0.1
C212
A_VCC
LCH_OUT
RCH_OUT
DGND
COAX_DVD
AGND
0
R213
DRC5114E0L
Q201
OPT_SAT
OPT_TV
SW3.3V
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TC74LVX4052FT
IC205
Y0
Y2
Y
Y3
Y1
INH
VEE
Vss
B
A
X3
X0
X
X1
X2
VDD
R216
1k
4.7k
R218
3.3k
R217
L202
10uH
0
R205
0
R206
C222
1
C221
1
10V
100
C217
R204
C224
0.047
C248
0.047
C254
1p
JL264
8
7
6
5
4
3
2
1
TC7WHU04FU(TE12R)
IC253
GND
VDD
470
R252
JL257
10
C260
VCC
OUT
GND
TORX147L(SONY)
IC251
1
2
3
220uH
L251
220p
C257
100k
R260
JL260
JL256
0.1
C252
JL252
JL263
220k
R254
JL251
10
C253
JL253
10
C261
1
C255
75
R251
0.1
C251
0
R262
0.1
C256
10V
100
C262
JL259
JL255
100
R256
10k
R253
100
R255
100k
R259
100
R257
J251
220p
C258
JL261
VCC
OUT
GND
TORX147L(SONY)
IC252
1
2
3
JL258
JL254
J252
2.2k
R261
2.2k
R258
10k
R207
10k
R208
47k
R219
47k
R220
RDS_INT/CLK
ST_SDA/DI
Rch
Lch
A5V
TUNER_3.3V
ST_SCL/CLK
GND
RDS_INT/CLK,ST_SCL/CLK,ST_SDA/DI
FB1009
R203
A_SEL0
ST_SCL/CLK
RDS_INT/CLK
ST_SDA/DI
IC205
AUDIO SELECT
IC253
WAVE SHAPER
L
R
TV IN
SAT/CATV IN
IC252
OPTICAL RECEIVER
IC251
(5/7)
MAIN BOARD
OPTICAL RECEIVER
OPT
VIDEO IN
COAX
DIGITAL
INVERTER
13
A
E
D
C
4
14
8
G
B
1
11
3
10
9
F
6
2
5
7
12
LINE IN
180 (AEP, UK)
100 (US, CND, TW)
R203, 204
(Page 25)
(Page 20)
(Page 21)
Ver. 1.1
STR-CT550WT
STR-CT550WT
24
24
5-13. SCHEMATIC DIAGRAM - MAIN Board (6/7) -
• See page 32 for IC Block Diagrams.
A
BOARD
CN901
POWER
IC B/D
IC B/D
IC B/D
IC B/D
MAIN
BOARD
11
(4/7)
(2/7)
12
BOARD
MAIN
12
12
6
1
3.1
1.4
4
3.3
12
7.7
0.9
0.8
4
7.7
0.9
0.8
16.3
32.3
0.4
16.3
32.3
0.4
32.3
2.7
32.3
0
27.3
1
3
4
5
6
7
8
9
9P
CN401
32V
32V
32V
GND
GND
GND
MAIN_ON
E4V
JL402
JL401
JL403
0.1
C416
47k
R417
3.3k
R416
JL405
16V
100
C420
JL404
10k
R418
E4V
D12V
P_CON_MAIN
P_CON1
32V
8.2k
R409
1
C407
SJPB-L4
D401
68k
R408
MP2467DN-LF-Z
IC401
1
SW
2
EN
3
COMP
4
FB
5
GND
6
RSET
7
VIN
8
BST
9
220k
R405
10uH
L401
100k
R403
C409
22
50V
47
C411
470k
R407
39k
R410
100p
C403
1
2
3
4
6
5
SI-3010KM-TLS
IC403
VCONT
VIN
GND
VOUT
ADJ
GND
390
R413
C410
22
MP2467DN-LF-Z
IC402
1
SW
2
EN
3
COMP
4
FB
5
GND
6
RSET
7
VIN
8
BST
9
0.1
C406
1
C408
50V
47
C412
SJPB-L4
D402
10uH
L402
39k
R414
100p
C404
100k
R404
220k
R406
5.6k
R412
10k
R415
5
4
3
2
1
TK11133CSCL-G
IC404
Vcont
GND
Np
V
out
Vi
n
100k
R401
100k
R402
6V
D3.3V
JL406
SW4V
DGND
6.3V
1000
C421
16V
100
C414
16V
100
C413
0.01
C401
0.01
C402
0.1
C417
0.1
C418
0.1
C415
0.1
C405
1000p
C423
RT1N431M-TP-1
Q402
0.1
C422
10k
R420
56k
R419
P_CON2
150k
R411
10V
470
C419
S
2SJ605-Z-E1-AZ
Q401
0.1
R422
5W
IC402
+4V REGULATOR
IC404
+12V REGULATOR
IC401
+6V REGULATOR
IC403
MAIN BOARD (6/7)
+3.3V REGULATOR
B+ SWITCH
B+ SWITCH
A
E
D
C
4
8
B
1
11
3
10
9
F
6
2
5
7
(Page 31)
(Page 22)
(Page 20)
Click on the first or last page to see other HT-CT550W / STR-CT550WT service manuals if exist.