Sony HT-CT780 Service Manual ▷ View online
HT-CT780
HT-CT780
33
33
5-3. BLOCK DIAGRAM - AMP Section -
SP2
WOOFER
(R-CH)
SP4
TWEETER
(R-CH)
SDA
20
SCL
21 19 18 16
70
X0
71
X1
X101
4MHz
SYSTEM CONTROLLER
IC102 (3/4)
DAMP_SDAO
55
DAMP_SCLO
54
DAMP_SOFT_MUTE
47
DAMP_PDN
51
DAMP_INIT
52
DC_DET
50
STREAM PROCESSOR
IC501
SDIN1
24
SCLK
23
LRCLK
22
MCLK
11
AMP_D1FLFR
MCK
SDIN3
26
AMP_D3CSW
DSP_LRCK
DSP_BCK
AMP_D1FLFR, AMP_D3CSW,
MCK, DSP_BCK, DSP_LRCK
MCK, DSP_BCK, DSP_LRCK
>002B
BUFFER
Q501
PWM_M_2 40
DIGITAL POWER AMP
IC503
INPUT_D
OUT_D
15
INPUT_C
14
INPUT_B
6
INPUT_A
5
27
OUT_D 28
OUT_C 32
OUT_B 35
PW_VACS_DET 121
OUT_A 39
PWM_P_2 41
VALID 37
PWM_M_4 48
PWM_P_4 49
DC DETECT
Q502
THERMAL DETECT
Q950, 952
DC DETECT
Q503
L503
L506
L505
L504
OUT_A 40
TH902
(Except US, CND, TW)
MUTE
PDN
RESET
DRIVE_OCP
(DIAG)
56
FA
U
LT
16
AMP_OVF1
57
CLIP
18
OTW
17
RESET
4
: AUDIO (DIGITAL)
SIGNAL PATH
: AUDIO (ANALOG)
SP1
WOOFER
(L-CH)
SP3
TWEETER
(L-CH)
(Page 32)
Ver. 1.1
HT-CT780
HT-CT780
34
34
5-4. BLOCK DIAGRAM - PANEL/POWER SUPPLY Section -
TH901
RECT
D901
RECT
D965
LINE FILTER
LF901
RECT
D967
85 SIRCS_IN_1
REMOTE CONTROL
RECEIVER
IC801
33 BT LED
LED DRIVE
Q801
49
INITX (RESET)
14 FL_DOUT
15 FL_CLK
12 FL_CS
15 FL_CLK
12 FL_CS
ND801
FLUORESCENT
INDICATOR TUBE
SYSTEM CONTROLLER
IC102 (4/4)
AC1
(AC IN)
F901
F501
POWER CONTROL
IC930
BD
6
VCC
3
FB/OLP
5
D934
D942
D105
D601, 602
D1801
D936
D932
PVDD_28V
+28V
(FOR L-CH)
+28V
(FOR R-CH)
GVDD_12V
D937
REGULATOR
Q930
D501
D804
+12V REGULATOR
IC502
F502
F931
E_4V
E_3.3V
DSP_1.1V
DIGITAL
POWER AMP
B+
103
AC_CUT
76
P_CONT_DSP
120
PCONT2
51
PCONT_DRIVER
119
PCONT1
DC/DC
CONVERTER
IC602
DC/DC
CONVERTER
IC313
DC/DC
CONVERTER
IC601
VDD
11
P_CONT3
DD_12V
+12V
REGULATOR
IC110
E_12V
VOLTAGE DETECT
IC106
RESET SWITCH
Q106
BT_3.3V
137
PCONT_BT
+3.3V REGULATOR
IC306
SW_3.3V
+3.3V REGULATOR
IC105
60
5VPWR
HDMI_TX_5V
DD_6V
SP_5V
+5V REGULATOR
IC1005
+5V REGULATOR
IC604
DIR_5V
SW_4V
B+ SWITCH
Q104, 105
DC/DC
CONVERTER
D803, 805, Q802
61
SPARTA_PCONT
1
VIN1
SP_3.3V
RG_1V
SP_1.3V
F+
VIN
VH
VBUS SWITCH
IC1802
130
PCONT_USB
2
USB_FAULT
16
VIN2
+3.3V REGULATOR
IC605
FOR
FLUORESCENT
INDICATOR TUBE
T901
POWER
TRANSFORMER
SI
SCK
STB
13 FL_RESET
RESET
39 NFC DATA
NFC1
NFC MODULE
(RC-S730 (WW))
3 SW1
VBUS_5V
14
5
SW2
EN1
12
EN2
NFC_SDA
SW
NFC_SCL
40 NFC SCL
NFC_IRQ
35 NFC IRQ
NFC_RF_DET
38 NFC_RFDET
143 USB DP
142 USB DM
ISOLATOR
PH930
SHUNT
REGULATOR
IC931
PROTECT DETECT
Q931
BLUETOOTH
INDICATOR
D801
+5V REGULATOR
IC304
89 KEY0
94 KEY1
88 KEY2
94 KEY1
88 KEY2
D/ST
1
KEY
BOARD
+3.3V REGULATOR
IC803
DC/DC CONVERTER
IC603
UPDATE
3
2
CN001
HT-CT780
HT-CT780
35
35
7.8
Ps
12 Vp-p
wa
Q802 (BASE)
5 V/DIV, 5
Ps/DIV
20.8
Ps
3.4 Vp-p
2
IC303 qk (LRCK)
1 V/DIV, 10
Ps/DIV
3
IC303 ql (BCK)
1 V/DIV, 200 ns/DIV
324 ns
3.7 Vp-p
5
IC303 r; (XTO)
1 V/DIV, 20 ns/DIV
40.6 ns
2.6 Vp-p
qd
IC603 3 (SW1)
2 V/DIV, 1
Ps/DIV
8.2 Vp-p
qf
IC603 qf (SW2)
2 V/DIV, 1
Ps/DIV
1.6
Ps
8.3 Vp-p
qs
IC601 1 (BOOT)
5 V/DIV, 1
Ps/DIV
3
Ps
20.2 Vp-p
qa
IC602 1 (BOOT)
5 V/DIV, 1
Ps/DIV
3
Ps
20.6 Vp-p
9
IC313 1 (BOOT)
5 V/DIV, 2
Ps/DIV
2.9
Ps
21 Vp-p
6
IC308 qd (XTAL)
1 V/DIV, 20 ns/DIV
39.4 ns
3.8 Vp-p
q;
IC102 ua (X1)
1 V/DIV, 100 ns/DIV
250 ns
3.4 Vp-p
7
IC308 y; (BCLK_OUT)
1 V/DIV, 200 ns/DIV
324 ns
4.4 Vp-p
20.8
Ps
3.6 Vp-p
8
IC308 ya (LRCLK_OUT)
1 V/DIV, 10
Ps/DIV
4
IC303 w; (SCKO)
1 V/DIV, 20 ns/DIV
40.4 ns
3.1 Vp-p
1
IC1501 <zzc (XTALOUT)
1 V/DIV, 20 ns/DIV
37.4 ns
2.4 Vp-p
For Schematic Diagrams.
Note:
• All capacitors are in
• 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
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : POWER ON
*
: Impossible to measure
• 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)
E :
VIDEO
N :
Bluetooth
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.)
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.
• Indication of transistor.
C
B
These are omitted.
E
Q
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
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.
• MAIN board is multi-layer printed board. However, the
patterns of intermediate layers have not been included in
diagrams.
diagrams.
• Waveforms
– MAIN Board –
– FL Board –
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
Note: When the complete MAIN board is replaced, refer to
“NOTE OF REPLACING THE IC503 ON THE MAIN
BOARD AND THE COMPLETE MAIN BOARD”
and “NOTES ON THE WIRELESS CONNECTION
(LINK) AFTER REPAIRS ARE COMPLETE” on page
5.
BOARD AND THE COMPLETE MAIN BOARD”
and “NOTES ON THE WIRELESS CONNECTION
(LINK) AFTER REPAIRS ARE COMPLETE” on page
5.
Note: When the complete MAIN board is replaced, refer to
“NOTE OF REPLACING THE IC503 ON THE MAIN
BOARD AND THE COMPLETE MAIN BOARD”
and “NOTES ON THE WIRELESS CONNECTION
(LINK) AFTER REPAIRS ARE COMPLETE” on page
5.
BOARD AND THE COMPLETE MAIN BOARD”
and “NOTES ON THE WIRELESS CONNECTION
(LINK) AFTER REPAIRS ARE COMPLETE” on page
5.
HT-CT780
HT-CT780
36
36
5-5. PRINTED WIRING BOARDS - MAIN Section (1/2) -
•
: Uses unleaded solder.
Note 1: When the KEY board is defective,
replace the complete mounted board.
1
28
56
29
1
19
1
19
1
19
8
1
16
9
5
4
4
1
3
3
4
1
5
8
108
73
1
36
144
109
72
37
4
1
5
8
1
4
8
5
1
19
57
58
76
39
58
57
39
1
19
76
38
20
FB604
R210
FB608
CN001
FB1001
R214
R215 R216
R217
R218
R602
R603
R604
R605
C1512
R606
R607
C1514
R220
R608
C1515
R221
R609
R1106
R222
C1518
C1519
R610
R611
9
1
1
4
1
5
R612
R613
R614
R615
R616
C1523
R1113
C1524
R231
R425
R232
R426
R1116
C1527
R233
R1117
C1528
C1529
R235
CN601
R236
R1505
R239
R1506
R623
R1507
C1530
R624
R1508
R1120
C1531
R625
IC1501
C1532
R432
R1122
R433
C1534
R434
R1124
R1115
R435
R241
R436
C1536
R437
C1537
R438
C1538
R441
C1543
C1544
CL101
CL102
C601
C602
C603
CL106
C604
24
2
4
1
5
8
23
1
C605
C606
C608
R1529
LN101
CL307
CL308
C610
CL309
C611
R1532
C612
R1533
C613
1
4
8
5
CL119
C616
CL503
C617
CL504
C618
CL505
CL507
C619
CL311
CL506
CL312
CL313
CL120
R1540
R1541
F501
F502
C623
LN501
C626
LN502
C627
JL610
CL131
CL132
JL613
CL133
JL614
CL134
CL135
CL136
C632
CL137
CL138
C635
CL139
C638
C639
CL140
CL141
CL143
18
2
2
14
1
13
17
1
C640
R1560
44
1
89
132
133
176
88
45
R1561
CL147
CL148
C645
C646
Q106
C648
Q301
CL151
CL152
RB102
RB103
C650
RB104
C651
C652
C653
L301
L305
RB502
L307
L501
44
23
1
22
RB1501
RB1502
RB1503
RB1504
IC601
IC602
IC603
CN1001
CN1004
FB101
FB103
C1001
FB105
C1002
C1003
FB107
C1004
C1005
C1008
C1009
FB303
FB304
R101
R102
R103
C1010
R104
C1011
C1012
R106
R108
C1015
R109
C1017
C1018
C1019
R111
R112
C1020
C1021
R117
C1024
R118
C1025
X1501
C1027 C1028
C1029
R1002 R1001
R506
CN103
R1003
R1004
CN104
R1005
1
4
8
5
CN105
R1006
C1031
R1009
IC1001
IC1002
C1033
C1034
C1804
IC1004
R129
IC1005
CN301
C1035
C1036
20
38
IC1006
C1807
1
4
4
1
C1808
R1012
R1013
R130
R1014
R325
R1015
R519
R329
FB1501
C1041
CN501
R136
C1042
CN502
R520
R521
R522
R523
C1048
R1020
C1049
R1022
C102
R333
R1023
C103
R140
R334
C104
R335
C105
R529
R336
R1026
C106
C107
R143
R1028
R1027
C108
C1050
C1051
C1052
R148
C110
R341
R1031
R1801
X101
C1059
R342
C306
R1032
C113
C114
R345
C115
CL001
R346
C116
R1806
R153
R347
R154
C118
C119
C1061
C1064
C504
R158
C311
24
13
37
48
12
1
25
36
X301
C312
C506
X302
C313
C120
R1810
C1069
C121
C315
R1811
R352
C122
C316
C123
R354
C124
R160
C109
C319
R161
R162
R357
R358
R1048
C510
R164
C1071
R1049
R165
C511
C129
C512
C1073
C1074
C1075
R169
C321
C1076
C322
C516
R360
C1079
R1051
C325
C519
R362
C326
R363
C327
R364
19
1
C134
R365
C135
R366
R367
C137
R368
C520
R369
C139
R175
R176
R177
C1084
C330
C1085
R179
C1086
C333
C1087
C140
R370
R1060
R371
R1061
JL319
C141
C1089
C142
R372
R1062
R1063
C143
C338
R180
C339
25
26
50
100
76
1
51
75
C145
R181
R1066
C146
R1067
R183
R184
C1090
C1092
R187
C340
C534
C535
C342
C536
C537
C344
C151
C539
C346
C347
C154
3
1
1
4
5
5
R190
C349
R191
R192
R1077
R193
R194
R195
C542
R197
C350
R198
JL335
R199
C351
C353
R1080
C354
R1081
C549
C356
R393
C357
C361
C359
D105
LN1001
R396
D106
LN1002
R1089
R399
C360
JL150
C362
C363
C364
R1091
C368
C369
C370
RB1001
C371
RB1002
C373
8
1
9
16
C374
IC102
C377
C378
C379
IC106
ET501
IC302
C382
ET502
IC303
IC110
RB1015
RB1016
C387
C388
IC308
L604
C389
IC309
LN1801
LN1802
IC501
IC503
C390
C391
C392
C393
IC313
C396
C397
C398
JC501
JC502
JC503
JC504
1
2
4
3
R200
CN1501
R201
CN1502
R202
R203
R208
R209
L503
L504
L505
L506
L602
L308
L608
L607
MAIN BOARD
(SIDE A)
1-894-096-
A
K
K
A
(CHASSIS)
(CHASSIS)
(CHASSIS)
(CHASSIS)
(CHASSIS)
(CHASSIS)
(CHASSIS)
(CHASSIS)
(CHASSIS)
FL
BOARD
CN803
>01P
POWER
BOARD
CN902
>02P
HDMI IN
3
FFC2
RF1
RF MODULATOR
(SWA12-4V TX)
E
FFC1
FFC3
BT1
Bluetooth
MODULE
MODULE
E
KEY
BOARD
UPDATE
(Except AEP, UK)
SPC2
HDCP 2.2
1
HDCP 2.2
ARC
HDMI OUT
2
HDMI IN
SP4
TWEETER
(R-CH)
SP2
WOOFER
(R-CH)
SPC1
SP3
TWEETER
(L-CH)
SP1
WOOFER
(L-CH)
A
B
C
D
E
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
11, 21
(11, 21)
Note 4: When the IC503 on the MAIN board is replaced, refer to “NOTE OF REPLACING THE
IC503 ON THE MAIN BOARD AND THE COMPLETE MAIN BOARD” on page 5.
Note 3: IC102, IC308, IC313, IC601 to IC603, IC1002, IC1004 and IC1501 on the MAIN board cannot
replace with single. When these parts are damaged, replace the complete mounted board.
Note 2: When the RF modulator (Ref .No. RF1) is replaced, refer to “NOTES ON THE WIRELESS
CONNECTION (LINK) AFTER REPAIRS ARE COMPLETE” on page 5.
(Page 48)
(Page 46)
Ver. 1.1
Click on the first or last page to see other HT-CT780 service manuals if exist.