Sony HCD-BX77DBI Service Manual ▷ View online
HCD-BX77DBi
HCD-BX77DBi
29
29
5-14. SCHEMATIC DIAGRAM - MAIN Section (3/3) -
• See page 36 for IC Block Diagrams.
D332
R498
R489
CN316
C359
C365
Q317
R460
R459
R478
R428
R475
Q316
R415
D313
R469
C387
R481
R482
R484
C307
R495
R409
C304
C337
R349
R348
R347
Q348
Q307
Q347
C219
C222
R253
L201
R230 R229
R153
C122
C119
L101
C123
C225
C125
R130 R129
Q338
C336
Q333
R427
R416
C350
D322
R441
R450
R449
R414
R417
D302
R403
C305
Q305
R404
C303
R406
Q306
Q304
Q343
D319
R458
C351
R496
Q344
Q342
D320
D303
R439
R421
R463
Q313
R316
R313
R311
R436
R435
Q345
R470
R471
R461
R425
R413
R41
1
R410
R419
R431
D329
IC307
IC305
C335
C325
CN314
CN325
CLP311
EP301
CN313
C223
EP302
CN303
C363
IC201
R222
C209
R223
C386
R210
R110
C127
C126
R122
R123
R131
C109
R105
R106
C352
R206
R104
R302
Q312
Q315
D325
IC306
R401
C373
R437
C380
CN324
CN312
R303
C302
D331
IC303
JW348
R309
C227
R231
C226
R204
R205
R420
D305
CN321
M901
MC2836
2.2k
2.2k
8P
0.1
470
16V
KTA1266GR
47
47
10k
1k
4.7k
2SC3052F
10k
MC2838
100k
47
16V
47
10
220k
47
16V
100
47k
47
16V
1
1M
22k
470k
2SC3052F
2SC3052F
2SC3052F
0.1
0.1
10
1/2W
4.7
4.7
10
1/2W
0.1
0.1
0.01
0.47
0.47
4.7
4.7
RT1N141C-TP-1
22
50V
RT1N141C-TP-1
22k
47k
10
50V
MC2836
4.7k
2.2
2.2
47
10k
UDZW-TE17-
3.6B
680
0.01
2SC3052F
680
100
16V
16V
220k
2SC3052F
KTA1266GR
2SC3052F
MC2837
47k
100
16V
16V
100k
2SC3052F
ISA1235
MC2837
MC2836
47k
10k
10k
ISA1235
100k
2.2k
47k
22k
2.2k
2SC3052F
100k
10k
47k
100k
47k
4.7k
100k
47k
47k
MA2J1110GLS0
KIA7809API-U/PF
0.1
100
16V
3P
10P
CN326
11P
3P
0.01
12P
100
16V
16V
R5523N001B-TR-F
22k
1
22k
22
25V
22k
22k
1
50V
1
50V
22k
22k
22k
1
4.7k
47k
47
10V
47k
4.7k
100k
RT1N441C
2SC3052F
MA2J1110GLS0
KIA7805API-U/PF
470
0.1
10
1
3P
6P
100k
0.1
1N4002-B5
NJM4558M-TE2
100
1
50V
22k
1
50V
4.7k
4.7k
47k
1N4002-B5
5P
B1
B2
B3
B4
B5
B6
B8
B9
B10
B11
C1
C2
C3
C6
C7
C4
C5
78
77
47
51
52
48
80
94
73
AIN_R
AIN_L
IPOD_L
IPOD_R
66
RELAY
ACDET
UNREG
UNREG GND
SUB GND
UNREG SUB
HP-L
HP-R
HPGND
SP-L
SP-R
AUDIO-IN R
GND
AUDIO-IN L
R-OUT
L-OUT
+B
GND
-B
USB UNREG
RXD
TXD
L+
R+
L-
R-
PROTECT
+B
-B
GND
PGND
DGND
AGND
AGND
5V
DAB 9V
1.2V_ON
3.3V_ON
DAB_L
DAB_R
S1DI
S1DO
VBUS 5V
SHIELD
(CHASSIS)
(CHASSIS)
USB UNREG GND
FAN+
GND
FAN+
(3/3)
DETECT
REGULATOR
+9V
O
G
I
(FAN)
FAN MOTOR DETECT
R
L
SPEAKER
Q307,347,348
Q316,317
FAN MOTOR
DRIVE
POWER
MONITOR
VBUS POWER
ON/OFF SWITCH
LINE AMP
Q342-344
DC DETECT
Q304-306
REGULATOR
B+ SWITCH
Q312,313
DRIVE
RELAY
Q333,338
DETECT
PROTECT
+5V REGULATOR
REGULATOR
+9V
O
G
I
O
G
I
VCC
GND
J302
KIA7809API-U/PF
(Page 28)
(Page 27)
(Page 25)
(Page
23)
(Page 27)
(Page 31)
(Page 31)
(Page 35)
HCD-BX77DBi
HCD-BX77DBi
30
30
CN317
JW501
J500
J301
JW505
JW502
R584
C131
R534
R53
7
R582
R585
C531
R58
3
R233
R581
R586
R589
C581
R54
0
R539
R538
R588
R532
R533
R536
R133
R232
R531
R535
C231
R132
R590
R587
C504
C522
R544
R516
R518
R545
R504
R506
C524
R514
C525
C515
C526
R508
C523
C518
C528
R523
R502
R515
R546
R507
R503
R513
R501
R512
C502
C501
R505
R510
R509
R543
C527
C505
R524
R519
R517
R522
R521
CN308
C512
JW589
JW585
JW586
JW588
EP501
C503
EP502
CN320
R541
R542
JW582
C529
C506
JW583
JW581
C511
C519
JW584
JW587
IC601
C521
1
8
1-876-056-
HP BOARD
G
PHONES
AUDIO IN
MAIN BOARD
CN316
1-876-053-
12
(12)
AMP BOARD
H
MAIN BOARD
CN321
D
1
5
MAIN BOARD
CN309
A
B
C
D
E
F
G
1
2
3
4
5
6
12
(12)
(CHASSIS)
(CHASSIS)
(Page 26)
(Page 26)
(Page 26)
5-15. PRINTED WIRING BOARDS - AMP, HEADPHONE Section -
•
: Uses unleaded solder.
• See page 19 for Circuit Boards Location.
HCD-BX77DBi
HCD-BX77DBi
31
31
5-16. SCHEMATIC DIAGRAM - AMP, HEADPHONE Section -
• See page 36 for IC Block Diagrams.
CN320
C525
R543
C529
R542
R544
C526
R510
R512
R509
C523
R508
C506
R546
C503
R503
C524
R504
R507
R513
R515
R545
C527
C528
R514
C519
C501 C505
C504
R505
C502
R502
C511
R521
C512
R506
CN308
R516
R517
R518
R519
IC601
CN317
R133
R233
C131
C231
R232
R132
R537
R538
R539
R540
R587
R588
R589
R590
R583
R582
R581
R533
R532
R531
J301
R541
R524
R523
R536
R535
R534
R586
R585
R584
C531 C581
R522
R501
J500
5P
0.0022
470k
100
35V
35V
100
1/2W
470k
0.0022
2.2k
1k
47k
10p
1k
47
25V
0
47
25V
1k
10p
47k
2.2k
1k
0
10k
2200p
2200p
1k
470
10V
100p 100p
470p
47k
470p
47k
10
50V
470
10 50V
470
7P
STK433-730-E
8P
1k
1k
470p
470p
47k
47k
10k
10k
10k
10k
10k
10k
10k
10k
470
470
470
470
470
470
2.2k
2.2k
470
470
470
470
470
470
0.01
0.01
470
470
CH21 IN
CH2 NF
STBY
CH1 NF
CH1 IN
MONIT
OR
SUB
+PRE
CH2 OUT
-
CH2 OUT+-
CH1 OUT
-
CH1 OUT+
+VCC
-VCC
-PRE
R-OUT
L-OUT
+B
GND
-B
GND
STBY
MNT
NC
AUDIO-IN L
GND
AUDIO-IN R
HP-R
SP-R
HPGND
HP-L
SP-L
R-IN
L-IN
POWER AMP
2.2K
2.2K
22k
22k
AUDIO IN
PHONES
C518
0.1
C515
0.1
C521
EP501
EP502
(CHASSIS)
0.1
C522
0.1
(Page 27)
(Page 29)
(Page 29)
HCD-BX77DBi
HCD-BX77DBi
32
32
C841
IC902
D915
R922
D905
R920
R919
Q901
C816
D904
R944
C919
C920
C917
C918
R934
R938
R937
R936
R935
R943
R942
Q903
Q905
C924
D807
C812
C811
R925
R921
C910
C908
R851
C907
FB901
R932
R933
R931
R929
R930
R852
C804
W801
W802
S803
IC901
C815
JW802
FL901
JW807
JW810
C814
L901
JW801
JW806
JW809
JW804
JW803
JW805
C805
JW81
1
C909
JW812
JW808
JW813
JW814
S801
D902
C838
R853
R854
R855
R856
R860
R861
R862
R863
R868
R864
R857
R869
R867
R865
R86
6
CN802
S807
S806
S805
S804
S812
S811
S813
S810
S809
S814
S821
S820
S819
S818
S815
S816
S817
FLUORESCENT INDICATOR TUBE
PANEL BOARD
1-876-052-
12
(12)
E
E
1
13
K
A
A
1
3
E
2C
1C
1
2
3
4
5
6
7
8
9
A
K
A
A
K
K
1B
2B
OPEN/CLOSE
E
MAIN BOARD
CN306
T801
DC/DC CONVERTER
STANDBY
POWER
(CHASSIS)
F
MAIN BOARD
CN322
1-876-055-
TOP KEY BOARD
x
ENTER
DSGX
FUNCTION
AUDIO IN
+
+
–
VOL
1
4
TUNE –
–
TUNE +
PLAY MODE/
TUNING MODE
REPEAT/
FM MODE
CANCEL
CD
TUNER/
BAND
DAB
AUTOSCAN
iPod
S801, 803– 807,
S809 – 821
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
8
9
10
11
12
13
12
(12)
(Page 26)
(Page 26)
5-17. PRINTED WIRING BOARDS - PANEL Section -
•
: Uses unleaded solder.
• See page 19 for Circuit Boards Location.
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