Sony DAV-C770 / HCD-C770 / HCD-C990 Service Manual ▷ View online
HCD-C770/C990
57
57
7-26. SCHEMATIC DIAGRAM – AMP Section (2/2) –
•
See page 71 for Waveform.
•
See page 76 for IC Block Diagrams.
C318
C453
C454
C304
D361
D351
C303
D362
C334
D352
C332
C341
C406
C400
C313
C316
C401
C407
C333
D312
D322
D342
D332
D331
D341
D311
D321
C362
C363
C353
C417
C414
C365
C343
C345
C319
C106
R112
R111
D353
D363
C356
C381
C384
C382
C423
C374
C418
C376
D364
D354
C375
C425
C424
C402
C395
C405
C404
C411
C419
C421
C422
C427
C426
D366
C413
D356
D346
D336
D316
D326
C455
C456
C457
C458
D313
D323
D333
D343
D314
D324
D334
D344
D315
D325
D335
D345
C462
C461
C412
C396
C354
FB303
FB309
FB312
FB313
FB318
FB320
L302
C432
C308
C302
R302
IC300
L300
FB300
R300
Q113
Q114
C397
D365
D355
D106
C301
IC301
IC311
IC309
IC307
IC306
IC304
X300
J401
R370
C307
C317
C342
C364
C383
C403
C420
D190
C190
D191
C191
R190
C111
C121
C131
C132
C133
C134
C135
C136
C122
C123
C124
C125
C126
C112
C113
C114
C115
C116
L406
L405
L404
L403
L402
L401
C451
C452
C460
C459
C162
C161
C163
C164
C165
C166
C167
C168
C169
C170
C171
C172
C141
C142
C143
C144
C145
C146
C147
C148
C149
C150
C151
C152
C182
C181
R110
R107
R109
D104
D105
D103
D101
D102
R106
C103
R105
C104
R101
C101
R102
R103
C102
R104
C105
R108
R113
Q103
Q104
Q110
Q109
Q112
Q111
Q106
Q105
Q107
Q108
Q102
Q101
100
10V
10V
1
1
0.022
SFPL
SFPL
0.022
SFPL
0.022
SFPL
0.1
0.01
0.1
0.1
0.1
0.01
100
10V
10V
100
10V
10V
0.022
LI116
LI116
P6SMB39AT3
P6SMB39AT3
P6SMB39AT3
P6SMB39AT3
LI116
LI116
100
10V
10V
0.01
0.1
100
10V
10V
0.1
0.1
0.1
100
10V
10V
0.1
1
100k
100k
SFPL
SFPL
0.022
100
10V
10V
0.1
0.01
100
10V
10V
0.1
0.1
0.022
SFPL
SFPL
0.022
100
10V
10V
0.1
0.01
0.1
100
10V
10V
0.1
0.1
0.01
0.1
100
10V
10V
100
10V
10V
0.1
SFPL
0.022
SFPL
P6SMB39AT3
P6SMB39AT3
LI116
LI116
1
1
1
1
LI116
LI116
P6SMB39AT3
P6SMB39AT3
LI116
LI116
P6SMB39AT3
P6SMB39AT3
LI116
LI116
P6SMB39AT3
P6SMB39AT3
1
1
0.022
0.022
0.022
10.0p
0.001
0.01
1M
MC74VHC1G04
0
10k
DTC124EKA
DTA114EK
0.022
SFPL
SFPL
MA111-TX
22
6.3V
CXD9702L
CXD9702L
CXD9702L
CXD9702L
CXD9702L
CXD9702L
49.152MHz
680
5p
100
50V
50V
100
50V
50V
100
50V
50V
100
50V
50V
100
50V
50V
100
50V
50V
RB411D
2.2
RB411D
1
50V
100k
0.01
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.01
0.01
0.01
0.01
0.01
1
1
1
1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
100k
100k
100k
MA111-TX
MA111-TX
MA111-TX
MA111-TX
MA111-TX
100k
1
100k
1
100k
1
100k
100k
1
100k
1
100k
100k
2SC2412
2SC2412
2SC2412
2SC2412
2SC2412
2SC2412
2SC2412
2SC2412
2SC2412
2SC2412
2SC2412
2SC2412
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
DIAG
EN
(2/2)
POWER AMP
POWER AMP
POWER AMP
POWER AMP
POWER AMP
POWER AMP
BUFFER
GND
VCC
SPEAKER
REAR L
REAR R
WOOFER
CENTER
FRONT L
FRONT R
OVER LOAD
DETECT
OVER LOAD
DETECT
OVER LOAD
DETECT
Q111,112
OVER LOAD
DETECT
OVER LOAD
DETECT
OVER LOAD
DETECT
DETECT
Q113,114
PROTECT
Q109,110
Q105,106
Q107,108
Q103,104
Q101,102
10µH
10µH
10µH
10µH
10µH
10µH
1µH
(Page
56)
HCD-C770/C990
58
58
7-27. PRINTED WIRING BOARDS – AUDIO Section –
•
See page 37 for Circuit Boards Location.
• Semiconductor
Location
Ref. No.
Location
D201
B-2
D202
A-4
D203
A-4
IC201
B-2
IC202
A-5
Q201
E-2
Q205
E-5
Q206
E-5
Q207
E-3
Q208
E-3
Q220
E-2
Q221
E-2
Q222
A-4
Q223
A-3
IC202
IC201
1-685-073-
11
(11)
E
E
E
E
E
E
E
FM/AM TUNER
PACK
AM
COAXIAL
FM
75Ω
E
DVD BOARD
CN002
K
VIDEO BOARD
CN207
R
L
AM
AUDIO IN
R
L
AUDIO OUT
VIDEO IN
VIDEO OUT
Y
R
PB/CB
L
AUDIO IN
VIDEO IN
P/CR
VIDEO 2
COMPONENT
VIDEO OUT
VIDEO 1
J205
J206
INTERLACE SELECTABLE
SCAN SELECT
SUPPLIED WITH
THE ASSEMBLED
BLOCK
AUDIO BOARD
(COMPONENT SIDE)
AUDIO BOARD
(CONDUCTOR SIDE)
1-685-073-
11
(11)
SEL BOARD
1-685-889-
11
(11)
A
B
C
D
E
F
1
2
3
4
5
6
7
R
AMP BOARD
PIN301
(Page 42)
(Page 60)
(Page 55)
HCD-C770/C990
59
59
7-28. SCHEMATIC DIAGRAM – AUDIO Section –
•
See page 71 for Waveform.
•
See page 76 for IC Block Diagrams.
R238
R244
R291
R242
C242
R253
R246
C240
R224
R219
R221
R220
C226
C228
C223
C225
R223
R218
Q207
R245
R239
R228
R227
Q206
Q205
R233
R250
R236
C234
R229
C233
R230
R237
R243
R251
R231
J205
R232
R249
R241
C238
R235
C236
J206
CN201
R208
R209
R211
R210
CN205
CNP205
CN202
CN208
C213
C214
R295
R294
R252
R247
C245
Q208
C235
C237
C241
C239
C243
R203
C207
C204
IC201
C205
C210
D201
C209
C221
R204
R202
R205
C203
R206
R207
R201
C201
Q201
Q220
Q221
C224
C220
C222
C227
C232
C230
S201
R212
R254
C206
C208
X201
IC202
R292
C215
R290
C216
R293
C609
C608
R225
R217
R222
R226
R214
L205
D202
D203
R213
C211
R215
R216
Q222
Q223
L206
CN204
10k
10k
470k
10k
220p
47k
47k
220p
100
100
100k
100k
0.1
0.1
0.1
0.1
10k
10k
DTC343TK-T
-146
1k
1k
1k
1k
DTC124EK
DTC124EK
10k
10k
10k
1000p
100k
1000p
100k
6.8k
6.8k
75
75
6P
6.8k
6.8k
47k
220p
47k
220p
6P
11P
220
220
220
220
2P
2P
29P
11P
0.01
0.01
330
330
10k
10k
10
50V
DTC343TK-T
-146
22
6.3V
22
6.3V
22
35V
22
35V
10 6.3V
68k
4.7
50V
50V
560p
BU1924F-E2
0.01
22
35V
UDZ-TE17-4.3B
47
16V
22
35V
47k
1k
100k
0.1
470k
270
4.7k
330p
2C2412
2SC2412
2SC2412
22
35V
22
35V
22
35V
22
35V
10
50V
10 50V
220
75
51
56
4.332MHz
MC14052 BDR2
1k
1
470k
1
1k
6800p
6800p
33k
33k
33k
33k
6.8k
MA111-TX
MA111-TX
47k
22
35V
6.8k
4.7k
2SA1037AK
DTC124EKA
2P
CE
TD
CL
DO
DI
DI
CE
DO
TD
CL
FM-DET
TUNED
R-CH
L-CH
DO
CK
CE
DI
Y
0
Y2
Y
Y
3
Y
1
IN
H
VE
E
V
S
S
V
D
D
X2
X
1
X
X
0
X
3
A
B
A.GND
RDATA
RCLK
TUNDO
TUNDIN
TUNSTE
TUNCE
TUNCLK
D.GND
D.IN
D.DND
D.OUT
D.GND
AUMUTE
DGND
L
A.GND
R
A.GND
R.IN
A.GND
L.IN
10V
10V
AV0
AV1
AV2
NC
I/P-SEL
10V
CB
CR
Y
V2-IN
V-OUT
V1-IN
D-IN
AV2
AVO
AV1
GND
A.GND
AUDIO OUT R
AUDIO IN R
AUDIO OUT L
AUDIO IN L
VIDEO OUT
VIDEO IN
AUDIO IN R
AUDIO IN L
COMPONENT
VIDEO OUT
Y
COMPONENT
VIDEO OUT
PB/CB
VIDEO IN
COMPONENT
VIDEO OUT
PR/CR
VIDEO 1
BUFFER
RDS DECODER
AMP
AMP
INVERTER
INVERTER
AUDIO INPUT
SELECTOR
Q207,208
MUTING
SELECTABLE
INTERLACE
SCAN SELECT
FM/AM TUNER
PACK
THE ASSEMBLED
BLOCK
SUPPLIED WITH
FM
COAXIAL
AM
(AEP)
VIDEO 2
TU-ON
Q222,223
B+ SWITCH
10µH
10µH
75Ω
AMP BOARD
(1/2)
PIN301
R
(Page 52)
(Page 61)
(Page 56)
HCD-C770/C990
60
60
7-29. PRINTED WIRING BOARD – VIDEO Section –
•
See page 37 for Circuit Boards Location.
IC209
16
9
1
8
IC207
IC204
IC208
IC206
K
AUDIO BOARD
CN208
F
DVD BOARD
CN003
4
3
2
1
S VIDEO
VIDEO
MONITOR
OUT
J202
OPTICAL
DIGITAL IN
VIDEO 2
IC204
3
1
6
4
VIDEO BOARD
(COMPONENT SIDE)
(CONDUCTOR SIDE)
VIDEO BOARD
1-685-072-
11
(11)
1-685-072-
11
(11)
A
B
C
D
1
2
3
4
5
• Semiconductor
Location
Ref. No.
Location
IC204
D-2
IC206
D-4
IC207
B-5
IC208
D-3
IC209
B-4
Q210
A-4
Q214
A-4
(Page 42)
(Page 58)
Click on the first or last page to see other DAV-C770 / HCD-C770 / HCD-C990 service manuals if exist.