Sony HCD-BX7DAB Service Manual ▷ View online
HCD-BX7DAB
29
29
HCD-BX7DAB
6-13. PRINTED WIRING BOARD – MAIN Section –
: Uses unleaded solder.
•
See page 21 for Circuit Boards Location.
EP303
JW
395
JW
46
0
JW
362
C324
JW343
JW342
JW
326
JW
360
JW
209
JW208
D314
JW
478
JW413
X301
JW325
JW
331
JW411
JW
417
C113
Q392
Q391
R312
JW
425
JW410
JW
329
JW409
JW
437
JW387
CN312
JW373
JW394
JW
330
JW
383
C208
JW
354
CN322
JW386
JW
306
JW
339
CN305
JW397
JW388
JW461
JW
479
JW422
JW344
JW
340
JW
348
JW367
JW357
JW
444
JW341
JW
335
CN306
JW374
JW
349
JW352
JW
419
JW
308
JW
311
JW
456
R308
JW322
JW359
JW
363
JW
356
JW
338
JW399
JW
3
14
JW
389
JW345
JW
446
JW
487
JW
429
JW
4
62
JW381
JW358
JW375
JW
435
JW
391
JW473
JW
309
JW477
JW384
JW
3
18
JW
304
JW
353
JW400
JW320
JW
392
JW
380
JW378
JW
404
JW458
JW403
JW
4
26
JW379
JW
327
JW371
JW441
JW
4
34
JW
432
JW
421
JW
333
R314
C350
JW
398
X302
C344
JW301
C364
CN311
IC311
C319
CN318
CN316
C349
CN321
CN303
C369
JW
351
JW
420
JW
43
9
D
321
C372
C36
3
C352
C353
CN304
JW
42
4
JW372
JW
361
JW463
JW
443
C207
C108
C107
C116
C367
C216
C309
C301
C224
C213
C124
JW369
JW
445
C371
C377
C379
JW
305
Q390
C115
C114
C214
C322
C215
JW465
JW
475
JW
43
6
JW
466
D315
D312
D331
JW
328
JW
416
JW459
JW
390
JW
504
JW393
JW303
JW321
JW
442
JW370
JW396
JW319
C391
JW
310
JW
415
D318
JW401
D308
JW
350
CN
310
JW
365
JW368
JW
431
JW423
JW
414
JW
433
JW
347
JW
337
JW
455
JW
334
JW
470
JW408
JW
336
JW
503
JW
3
55
C375
JW484
EP302
JW376
JW
42
7
JW
454
L302
JW
307
JW474
JW346
JW
332
JW
480
C336
C303
JW
430
JW
468
JW377
C351
JW302
JW
471
JW
428
JW
472
JW
418
JW
476
JW457
JW483
JW
46
7
L301
JW412
JW
453
EP301
JW
490
C394
CN309
JW485
JW
4
40
C320
JR206
JR218
IC301
D
332
JR
301
Q314
Q318
R
103
R203
R109
R110
R209
R210
JR486
Q
393
R305
R
381
C302
D309
C361
C242
R
34
4
R322
R
310
R315
R307
R306
R317
R321
D304
Q
303
JR494
D324
JR303
JR478
JR485
IC310
R218
JR304
JR470
JR305
JR481
JR469
JR479
C
311
JR475
JR421
JR492
JR491
R102
JR212
R301
R302
R303
R
304
R309
R311
R313
R318
R316
R417
R319
R320
R325
R324
R323
R326 R327
R328
R329
R330
R429
R430
R
331
R
332
R
333
R
334
R335
R
336
R
337
R
338
R339
R
340
R
43
3
R434
R441
JR201
JR106
JR483
CN307
R446
R457
R365
R366
R367
R368
R369
R370
R371
R372
R473
R474
R375
D
310
D
311
R
385
R386
R388
R389
R390
R391
R392
R393
R394
R395
R490
R491
R491
R492
R493
R494
R
486
R497
R
300
C333
C310
C346
R412
Q309
C316
JR482
R466
R465
C340
C342
C341
R464
IC309
R472
R477
R467
R468
R
408
R
462
R
426
R205
R
206
R105
R106
R387
IC304
JR474
Q333
R
425
R118
C142
C354
JR484
C368
R442
C243
R444
R445
R454
Q103
Q203
Q340
Q
341
R
101
R201
R345
R227
R211
R
111
R
112
Q310
Q
312
R452
R455
R456
R453
C339
R212
C386
JR472
Q313
Q311
R414
R
407
R
406
C305
Q305
C106
Q306
R404
JR476
JR489
JR495
C
355
JR422
C35
6
JR505
C330
JR302
JR101
R463
Q301
R376
JR
500
JR480
C143
R403
C308
D320
R
419
R
413
R411
R410
Q
302
JR490
C206
R202
Q344
C348
C347
D306
C362
Q321
IC322
IC321
R450
R449
Q315
D
322
R
448
R
427
R416
Q338
R
439
R479
R
461
R423
R217
R117
R
436
R
435
R421
R
420
Q343
Q342
R458
R34
1
D319
R
496
R
471
R470
R
469
D303
D329
R431
D302
IC323
Q304
D307
R402
R438
R
440
R443
R447
R451
D323
C393
D335
R
382
C392
D330
C112
C212
D
336
C211
C111
C366
C338
JR493
D326
D325
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
1
3
5
4
E
MAIN BOARD
1-873-144-
13
(13)
K
POWER
BOARD
CN904
L
5V REGULATOR
BOARD
CN324
B
USB BOARD
CN905
A
CD BOARD
CN203
C
FRONT PANEL
BOARD
N
TOP PANEL
BOARD
CN802
P
MOTOR BOARD
CN001
F
DAB BOARD
CN801
G
AMP
BOARD
CN320
E
AMP
BOARD
CN308
J
SPEAKER
BOARD
CN319
H
HEADPHONE
BOARD
CN317
(CHASSIS)
(CHASSIS)
(CHASSIS)
M
REGULATOR
BOARD
C314
1
7
1
8
1
5
K
K
A
K
A
A
A
K
A/K
A
K
K
A
K
A/K
TUNER
(FM/AM)
FM 75
Ω
COAXIAL
ANTENNA
AM
A
A/K
K
1
2
24
25
A
K
K
A
K
K
A
K
A/K
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
8
9
10
11
12
13
1
12
1
6
19
1
18
2
1
4
1
2
9
8
•
Semiconductor
Location
Location
Ref. No. Location
D302
D-6
D303
D-6
D304
E-11
D306
F-9
D307
E-3
D308
B-9
D309
J-6
D310
G-9
D311
G-9
D312
A-9
D314
A-9
D315
B-9
D318
D-9
D319
D-5
D320
C-4
D321
D-10
D322
D-4
D323
F-7
D324
C-4
D325
E-2
D326
D-2
D329
D-6
D330
H-5
D331
C-9
D332
C-9
D335
A-11
D336
D-10
IC301
I-9
IC304
G-7
IC309
G-4
IC310
I-6
IC311
I-3
IC321
F-10
IC322
I-11
IC323
J-11
Q103
D-4
Q203
D-3
Q301
J-4
Q302
F-10
Q303
F-11
Q304
D-7
Q305
D-5
Q306
D-6
Q309
J-6
Q310
G-4
Q311
E-4
Q312
G-4
Q313
E-3
Q314
E-10
Q315
D-6
Q318
E-10
Q321
I-11
Q333
D-5
Q338
D-5
Q340
G-5
Q341
G-5
Q342
D-4
Q343
D-5
Q344
D-4
Q390
E-11
Q391
E-11
Q392
F-11
Q393
E-10
(Page 36)
(Page 36) (Page 34)
(Page 34)
(Page 40)
(Page 28)
(Page 28)
(Page 22)
(Page 24)
(Page 38)
(Page 38)
(Page 22)
(Page 26)
HCD-BX7DAB
30
30
HCD-BX7DAB
6-14. SCHEMATIC DIAGRAM – MAIN Section (1/4) –
•
See page 42 for IC Block Diagrams.
R202
R102
CN311
Q302
R312
C319
R322
C355
R307
R314
R308
R315
R317
R306
R321
C361
R344
R103
R203
C324
R408
R462
R467
R468
R472
R477
R426
C364
D304
C338
C366
Q392
Q390
C330
Q303
C348
D321
D318
M001
Q393
IC311
Q321
R339
R423
Q391
Q318
Q314
C356
R310
CN001
S001
CN305
CN304
L301
D306
C346
C354
C347
IC321
IC322
IC323
C391
4.7k
4.7k
5P
RT1N141C-TP-1
47
220
10V
10V
100
0.1
1k
47
47
100k
47k
22k
47k
0.1
100
47k
47k
100
10V
10V
2.2k
1k
4.7k
4.7k
1k
1k
10k
10
50V
UDZW-TE17-3.9B
0.1
0.1
KTC3203Y-A
KTC3205Y-A
0.1
RT1P441C
0.1
1N4002-B5
1N4002-B5
2SA1235TP-
BA6956AN
5P
470
10V
10V
LCD VDD
DGND
DACGND
+9V
A
CD-L
CD-R
19
72
LRCK
A-IN
BCK
ST-REQ
GATE
35
36
GATE
ST-REQ
38
37
A-IN
BCK
40
LRCK
4
4
6
5
6
6
6
7
6
8
6
9
BUS2
B
U
S
2
B
U
S
3
BUS3
BUS2-1
B
U
S
2
-1
BUS3-1
B
U
S
3
-1
REQ-1
REQ-1
REQ
R
E
Q
BUS1
B
U
S
1
BUS0
B
U
S
0
CCE
C
C
E
BUCK
B
U
C
K
6
3
7
5
CCE-1
C
C
E
-1
BUCK-1
B
U
C
K
-1
BUS1-1
B
U
S
1
-1
BUS0-1
B
U
S
0
-1
8
6
8
8
8
9
71
7
6
7
0
9
1
9
0
RT1N141C
10k
100
KTC3203Y-A
RT1N141C
RT1P441C
0.1
100
19P
1SS355W
0.1
0.1
0.1
TC74HC4066AFT
TC74HC4066AFT
TC74VHC157FT
LRCK
CCE
BUCK
BUS3
BUS2
BUS1
BUS0
DVDD 3.3V
DVSS
ST-REQ
REQ
GATE
A-IN
BCK
VC
C
1
C
4
C
4
A
4
B
3
B
3
A
1
A
1
B
2
B
2
A
2
C
3
C
G
N
D
USB-RST
OPEN SW
CLOSE SW
OPEN
CLOSE
V
C
O
+
O
-
V
M
V
CC
I+
I-
G
N
D
G
N
D
VC
C
1
C
4
C
4A
4
B
3
B
3
A
1
A
1
B
2
B
2A
2
C
3
C
G
N
D
DO
DI
USB-SO
USB-SI
GATE
ST_REQ
GPIN/AIN
ZDET/LRCKIN
MGND
VM(7V)
DVDD(3.3V)
D-OUT
DGND
SBSY
REQ
BUCK
BUS3
BUS2
BUS1
BUS0
AGND
L-OUT
DACGND
R-OUT
AVDD(3.3V)
CCE
RST
CLOSE SW
OPEN SW
DGND
CLOSE
OPEN
A
/B
1
A
1
B
1
Y
2
A
2
B
2
Y
G
N
D
V
C
C
G
4
A
4
B
4
Y
3
A
3
B
3
Y
(1/4)
(LOADING)
LOADING MOTOR DRIVE
VOLTAGE DETECT
INVERTER
BUS SWITCH
BUS SWITCH
DATA SELECTOR
Q314,318,391
+3.3V REGULATOR
+3.3V REGULATOR
Q302,303,390,392
DGND
CLOSE
OPEN
CD TRAY
OPEN/CLOSE
DETECT
CD DRIVE MUTE
SFSY/BCKIN
25P
C320 100k
(Page 25)
(Page 23)
(Page 32)
(Page
31)
HCD-BX7DAB
31
31
HCD-BX7DAB
6-15. SCHEMATIC DIAGRAM – MAIN Section (2/4) –
•
See page 42 for Waveforms.
•
See page 42 for IC Block Diagrams.
•
See page 45 for IC Pin Function Description.
C339
C316
C362
Q301
CN322
CN306
R466
R412
R464
R465
R313
R320
R325
R328
R319
R368
R388
R392
R304
R474
R492
R493
R327
R417
R393
R330
R329
R331
R332
R333
R334
R434
R433
R316
R369
R370
R371
R372
R375
R387
R463
R301
R302
R303
R365
R366
R367
R389
R390
R391
R491
R490
R300
R386
R486
R441
R446
R429
R430
R394
R494
R473
R381
R382
R311
C341
C342
C310
C311
C340
C386
C392
C393
D309
D310
D311
IC310
D303
L302
2.2
µ
H
R457
R340
R338
R337
R336
R335
R326
X302
X301
R385
R395
Q309
C301
C333
C344
IC301
R497
0.1
0.1
0.1
2SC3052F
4P
13P
47k
10k
10k
47k
0
47k
100
100
100
100
100
100
100
1M
10k
10k
100
10k
100
100
100
100
100
100
100
10k
10k
0
100
100
100
100
100
100
10k
100
100
100
100
100
100
100
100
100
10k
10k
100
220k
100k
10k
10k
4.7k
4.7k
220
10k
1M
1k
1k
220k
0.1
0.1
22p
22p
0.1
0.01
220p
220p
1SS355W
1SS355W
1SS355W
PST3629NR
MC2836
5MHz
2SC3052F
4.7
16V
16V
0.1
1000
6.3V
6.3V
LCD VDD
DGND
DACGND
+9V
DGND
+9V
DACGND
+9V
DACGND
LCD VDD
A
ACDET
A
A
35
36
37
8
0
81
82
87
92
93
44
38
40
6
7
6
6
6
5
6
8
7
0
7
1
7
2
6
9
7
5
7
6
89
88
90
91
86
2
9
3
0
2
7
2
6
2
5
1
9
4
94
6
3
93
92
1
2
3
1
8
2
8
31
32
4
27
94
26
25
30
29
28
95
100
4.7k
100
100
100
100
100
100
0
100
DGND
KEY1
KEY2
KEY0 RETURN
SIRCS
BACK LIGHT
BACK LIGHT 9V
EVER 3.3V
LCD DATA
LCD CLOCK
LCD VDD
POWER ON
STBY LED
KEY0
KEY0 RETURN
USB/BT LED
DGND
S
IR
C
S
B
Y
T
E
X
C
IN
X
C
O
U
T
R
E
S
E
T
X
O
U
T
X
IN
N
M
I
A
C
C
U
T
SPEC IN
VREF
R
D
S
IN
T
S
BS
Y
USB TXD
USB RXD
USB CTS
USB RTS
NC
NC
NC
N
C
L
C
D
C
LK
S
T C
L
K
S
T D
A
T
A
O
U
T
N
C
N
C
D
A
B
-P
O
W
ER
3.3V
D
A
B
-PO
W
ER
5
V
L
C
D
B
A
C
K
L
IG
T
H
T L
E
D
S
TA
N
D
B
Y
L
ED
S
TB
Y
-R
E
LA
Y
NC
NC
USB RESET
NC
N
C
N
C
N
C
C
D
B
U
S
3
C
D
B
U
S
2
C
D
B
U
S
1
C
D
B
U
S
0
M
P
3 IR
E
Q
C
D
O
N
C
D
X
R
S
T
C
D
D
R
IV
E
M
U
T
E
C
D
C
L
K
U
S
B
P
O
W
E
R
S
E
L
IN
H
SE
L
A
S
E
L
B
AMP DATA
TA LINE
-MUTE
AMP CLOCK
NC
NC
I-POWER MONITOR
STK-ON
CDM LOAD OUT
CDM LOAD IN
CDM SW(OPEN)
CDM SW(CLOSE)
RDS DATA
ST CE
NC
N
C
N
C
N
C
D
A
T
A
N
C
N
C
C
D
C
C
E
K
EY
W
AK
E U
P
_
D
IS
P
L
A
Y
K
E
Y
W
A
K
E
U
P
_
P
O
W
E
R
MODEL-IN
DAB TXD
DAB RXD
BT_RTS
B
T
_
A
V
_
R
O
L
E
B
T
_
R
ES
E
T
B
T
A
U
D
IO
O
U
T
M
U
T
E
B
T C
T
S
B
T
PO
W
E
R
KEY0
KEY1
KEY2
PULL UP
PULL DOWN
U
S
B
/B
T
L
ED
DEC BUS SEL1
DEC BUS SEL2
NC
S
T D
A
T
A
IN
/S
TE
R
E
O
L
CD
AVSS
AVCC
C
N
V
S
S
V
S
S
V
C
C
V
S
S
V
C
C
(2/4)
SYSTEM CONTROLLER
VOLTAGE DETECT
AC DETECT
32.768kHz
RESET
SWITCH
OUT
VDD
GND
CD
NC
M3062LFGPFP-703
4.7k
R376
100
100
100
7
7
7
8
R318
100
R309
10k
R323
R324
2
3
24
(Page 39)
(Page 39)
(Page 30)
(Page 33)
(Page
32)
HCD-BX7DAB
32
32
HCD-BX7DAB
6-16. SCHEMATIC DIAGRAM – MAIN Section (3/4) –
•
See page 42 for IC Block Diagrams.
R454
R444
R117
R217
R445
R442
Q333
Q338
C350
R421
Q343
C351
R205
R206
R106
R105
Q340
CN309
R450
R449
D329
C302
C305
Q305
C303
CN318
Q344
R431
R461
D320
R435
R436
D322
D319
R209
R109
R110
R210
D332
R118
R218
EP301
R439
R425
R305
R341
R469
R496
R470
R471
R227
R345
C124
C224
C352
C353
C363
C369
R448
R427
R416
R458
Q342
CN316
Q341
CN321
R411
R410
R413
Q306
R404
R407
Q304
R414
D324
C371
C375
C142
C143
C368
C242
C243
D323
D330
R419
R420
D331
D315
D314
D308
D312
CN312
CN303
Q315
C112
C212
C211
C206
C106
C111
IC304
JR201
JR101
D335
D336
EP302
Q103
Q203
R101
R406
C372
R403
D302
C113
C108
C107
C207
C208
C213
C367
C216
C116
R201
C394
C336
C377
C379
47k
47k
47k
47k
10k
10k
RT1N141C-TP-1
RT1N141C-TP-1
10
50V
10k
2SC3052F
100
16V
16V
22k
22k
22k
22k
RT1N141C-TP-1
5P
2.2
2.2
1SS355WTE-17
0.1
0.01
2SC3052F
100
16V
16V
7P
2SC3052F
47k
47k
MC2838
2.2k
22k
MC2836
MC2837
4.7k
4.7k
47k
47k
MC2836
4.7k
4.7k
47k
100k
47
47
100k
100k
100k
10k
22k
47k
2.2
50V
50V
2.2
50V
50V
2200
35V
2200
35V
2200
25V
1000
10V
4.7k
22k
47k
47k
2SA1235TP-1EF
8P
RT1P441C
5P
4.7k
100k
47k
2SC3052F
1k
10k
2SA1235EF
47
MC2836
0.068
0.068
0.047
0.01
0.1
0.047
0.01
1SS355W
1SS355W
47k
47k
1N4002-B5
2SC3052F
R2S15904SP
DTC343TK
DTC343TK
220k
1k
UDZW-TE17-3.6B
1
50V
1
50V
1
50V
1
50V
1
50V
1
50V
10
50V
4.7
50V
50V
4.7
50V
50V
2.2
50V
50V
22
50V
0.068
0.068
DACGND
LCD VDD
+9V
ACDET
A
CD-L
CD-R
TU-R
AVDD5
TU-L
82
81
87
80
86
28
1N4002-B5
470p
470p
470p
470p
470p
470p
0
0
MC2837
MC2837
2200
16V
RELAY
GND
ACDET
+B
-B
PROTECT
UNREG
UNREG GND
SUB GND
UNREG SUB
INR3
INR2
INR1
INL1
INL2
INL3
INL4
IGOUTL
VOLINL
IGOUTR
VOLINR
NC
NC
TREL
TRER
DGND
CLK
DATA
REFIN
AGND
ROUT
LOUT
INR4
BASL2
BASL1
BASR2
BASR1
HP-L
HP-R
HPGND
SP-L
SP-R
AUDIO-IN R
GND
AUDIO-IN L
VCC
SP-R
GND
SP-L
GND
FAN GND
FAN 9V
L-IN
R-IN
AGND
STBY
MONITOR
R-OUT
L-OUT
+B
GND
-B
USB UNREG
USB UNREG
PROTECT
(3/4)
(CHASSIS)
IC306_I
IC306_G
IC306_O
IC305_I
IC305_G
IC305_O
Q342-344
DC DETECT
Q304-306
RELAY DRIVE
Q333,338
PROTECT DETECT
Q340,341
MUTING CONTROL
Q103,203
MUTING
INPUT SELECTOR,
ELECTRICAL VOLUME
12P
6P
+5V REGULATOR
2.2k
2.2k
1N4002-B5
1N4002-B5
1N4002-B5
D326
1N4002-B5
D325
1N4002-B5
(Page 31)
(Page 30)
(Page 33)
(Page 28)
(Page 28)
(Page 41)
(Page 37)
(Page 37)
(Page 35)
(Page 35)
Click on the first or last page to see other HCD-BX7DAB service manuals if exist.