Sony HCD-BX20I / HCD-BX50BTI Service Manual ▷ View online
HCD-BX20i/BX50BTi
HCD-BX20i/BX50BTi
29
29
6-8. SCHEMATIC DIAGRAM - BLUETOOTH Section (BX50BTi) -
• See page 42 for IC Block Diagrams.
FB905
R901
R902
R903
R904
R905
R906
CN901
FB913
FB914
FB904
FB903
FB902
FB901
FB908
FB909
FB910
FB911
C921
C922
R941
R974
R973
R972
R907
R967
R943
R944
R949
R945
C945
R955
R957
C966
R948
IC901(1/2)
IC901(2/2)
C946
R946
C965
R947
R968
R942
R950
R963
R953
R951
C953
R956
R958
R952
C954
R964
R954
R921
R922
R925
R929
IC902(2/2)
R908
R971
R970
R969
C931
C923
R923
R909
R911
R910
R914
IC902(1/2)
C932
R924
R926
R930
C924
R928
R927
C925
C926
R931
R933
C929
R932
R934
C928
C902
R962
R960
R961
R959
D901
C901
IC903
C903
C904
C905
C957
FB907
FB906
R918
R917
R916
R915
D902
R936
R937
R900
R935
CN902
R938
R939
R940
R966
CN903
JR902
C908
C907
C927
C912
R965
C958
C941
C942
C951
C952
C930
C906
R913
IC904
CN904
C914
ANT901
0
100
100
100
100
100
100
15P
0
0
0
0
0
0
0
0
0
0
1 50V
1 50V
100
470
470
470
470
100k
100k
100k
1k
100k
22p
100k
1M
0.22
50V
47k
NJM14558V-
NJM14558V-
22p
100k
0.22
50V
47k
100k
100
1k
100k
47k
1k
1
50V
100k
1M
1k
1
50V
100k
47k
100
100
220
4.7k
NJM14558V-
470
470
470
470
470p
470p
220
2.2k
0
2.2k
0
NJM14558V-
470p
220
220
4.7k
470p
4.7k
4.7k
0.0047
0.0047
4.7k
4.7k
2.2
50V
50V
4.7k
4.7k
2.2
50V
50V
0.1
100
100
100
100
MC2838-T11
22
16V
XC6213B332MR
0.1
4.7
35V
35V
22p
22p
0
47k
47k
47k
47k
MC2838-T11
100
100
100
100
6P
100
100
100
100
6P
0
47
16V
47
16V
2.2
50V
50V
47
16V
100
22p
0.22
50V
0.22
50V
1
50V
1
50V
2.2
50V
0.1
47k
BLUETOOTH MODULE
CXN1404-3BGL
2p
ROLE
TXD
CTS
RXD
RTS
RT
S
TXD
RXD
CTS
TXD
RXD
RTS
CTS
ROLE
DGND
AVDD5V
VCC
UART_TXD
UART_RXD
UART_/RTS
UART_/CTS
GND
GND
VCC
SPI_MOSI
SPI_MISO
SPI_CLK
SPI_CSB
AOUTR
AGND
AOUTL
AGND
(BT_AV_ROLE)
AINL
AINR
VIN
VSS
CE
NC
VOUT
GND
A-IN_N_R
A-IN_P
_R
A-IN_N_L
A-IN_P
_L
GND
A-OUT_N_R
A-O
UT_P_R
A-OUT_N_L
A-OUT_P_L
GND
PIO-00
PIO-01
PIO-03
PIO-04
PIO-06
PIO-07
PIO-08
PIO-09
PIO
-10
PIO
-1
1
RSV
GND
PIO-05
PIO-02
GND
VDD
VDD
VDD/
VREF
SPI_
MOS
I
SPI_CLK
SPI_
MIS
O
SPI_
CSB
USB
_VB
US
USB
_DP
USB
_DN
PCM_CLK
PCM_SYNC
PCM_IN
PCM_OUT
AIO-00
AIO-01
AIO-02
AIO-03
GND
DVDD5V
(BT_TXD)
(BT_RESET)
(BT_RTS)
(BT_RXD)
(BT_CTS)
+3.3V REGULATOR
MIX AMP
1
2
3
8
7
4
5
6
LINE AMP
(NC)
(NC)
UAR
T_CTS
UAR
T_R
TS
UAR
T_RX
D
UAR
T_TXD
RES
ET
PATTERN
ANTENNA
(FOR BLUETOOTH)
1
2
3
8
4
5
6
7
(Page 34)
Note: IC904 on the BT board cannot exchange with single. When IC904
on the BT board is damaged, exchange the entire mounted board.
HCD-BX20i/BX50BTi
HCD-BX20i/BX50BTi
30
30
6-9. PRINTED WIRING BOARD - IP Board -
•
: Uses unleaded solder.
• See page 25 for Circuit Boards Location.
30
1
E
E
Q102
Q103
Q104
Q105
Q106
R101
R102
R103
R104
R105
R106
R107
R108
R109
R1
10
R
111
R112
R113
R1
14
R1
15
R1
17
R118
CN101
CN102
R122
R132
R135
R136
R137
R138
R139
C101
C102
C103
R140
C104
R141
C105
R142
R143
R144
C108
C109
R146
R147
R148
R149
C111
X101
R150
C114
C115
C118
C119
C120
D102
D104
IC101
IC102
IC103
E
E
X101
IP BOARD
(SIDE A)
IP BOARD
(SIDE B)
1-876-184-
11
(11)
1-876-184-
11
(11)
C
MAIN BOARD
CN325
(iPod)
1
10
E
1
3
4
5
1
3
4
52
40
14
A
K
26
39
27
1
13
2
A
K
A
B
C
D
E
1
2
3
4
5
6
7
8
9
10
(Page 32)
Ref. No. Location
• Semiconductor Location
Ref. No. Location
D102
C-4
D104
B-3
IC101
B-4
IC102
A-3
IC103
A-4
Q102
E-2
Q103
E-1
Q104
C-2
Q105
C-1
Q106
B-3
HCD-BX20i/BX50BTi
HCD-BX20i/BX50BTi
31
31
6-10. SCHEMATIC DIAGRAM - IP Board -
• See page 42 for Waveforms. • See page 42 for IC Block Diagrams. • See page 45 for IC Pin Function Description.
MAIN
C
(3/3)
CN325
BOARD
21
IC B/D
5.1
4.9
3.4
1.3
5.1
3.4
4.7
0
0
-1.1
-1.1
0
0
-1.1
-1.1
3.4
3.4
3.4
3.3
3.3
3.4
3.2
3.4
1.6
3.4
3.4
3.4
1.7
1.7
3.4
3.4
3.4
-1.1
3.4
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
30P
CN102
DGND
DGND
TPA+
USB D+
TPA-
USB D-
TPB+
VBUS
TPB-
ACC ID
PWR+
PWR+
ACC PWR
RESERVED
DGND
DGND
RESERVED
RXD
TXD
ACC DET
S-VIDEO-Y
S-VIDEO-C
VIDEO-OUT
REMOTE SENSE
LINE-IN-L
LINE-IN-R
LINE-OUT-L
LINE-OUT-R
A-GND
DGND
5
4
3
2
1
TK11133CSCL-G
IC102
CONT
GND
NP
VOUT
VIN
10
C108
6.3V
470
C109
4
3
1
2
PST3641UL
IC103
GND
VDD
CD
OUT
16V
10
C114
16V
10
C115
CL109
CL102
CL103
CL104
CL105
CL106
CL107
CL108
CL110
CL111
CL112
CL113
CL115
CL116
CL118
CL120
RT1P141M-TP-1
Q106
CL122
CL123
CL125
CL124
CL130
CL132
CL133
CL137
CL138
CL139
CL140
CL141
CL142
CL143
CL144
CL145
CL146
CL147
CL148
CL149
CL150
CL151
CL152
CL153
CL154
CL155
CL156
CL135
0.1
C104
0.1
C102
0.1
C103
C101
0.1
0.1
C120
0.1
C
111
0.1
C118
100k
R107
100k
R108
100k
R109
100k
R110
75k
R106
75k
R111
220k
R112
330k
R113
100
R114
100
R115
100
R102
100
R101
100
R136
100
R149
100
R103
100
R104
10k
R122
10k
R132
10k
R135
R146
10k
100k
R140
100k
R139
100k
R148
100k
R147
1k
R141
R143
1k
R144
1k
1k
R142
10k
R105
1000p
C119
0.22
C105
0
R118
33k
R117
100
R138
100
R137
20MHz
X101
10k
R150
2SD21
14KT146W
Q102
2SD2114KT146W
Q103
2SD21
14KT146W
Q104
2SD2114KT146W
Q105
27 28 29 30 31 32 33 34 35 36 37 38 39
41
42
43
44
45
46
47
48
49
50
51
52
3
4
5
6
7
8
9
10
11
12
13
17
18
19
20
21
22
23
24
25
26
40
2
15
16
14
1
R5F21246SN060FP
IC101
NC
SCL
P33
SDA
MODE
P34
P44
RESET
XOUT
VSS
XIN
VCC
LED
LED
LED
P23
P22
P21
P20
P17
P16
RXD_iPod
TXD_iPod
P13
NC
AC CUT
RXD_DMPOR
T
P12
P1
1
P10
P31
P30
P65
VIDEO_MUTE
AUDIO_MUTE
P07
NC
NC
P04
VREF
P60
DETECT
P61
MODEL
DEST
KEY1
KEY0
P37
LED
TXD_DMPOR
T
P06
P05
RB521S-30-TE61
D102
1
2
3
4
5
6
7
8
9
10
10P
CN101
PGND
VBUS 5V
RXD
TXD
L-
L+
R-
R+
SHIELD
DETECT
RB521S-30-TE61
D104
+3.3V REGULATOR
IC102
Q102-105
MUTING
RESET SIGNAL GENERATOR
IC103
MUTING CONTROL SWITCH
IC101
iPod INTERFACE
(iPod)
IP BOARD
9
E
6
G
1
D
3
A
4
5
C
8
F
B
H
7
2
(Page 35)
HCD-BX20i/BX50BTi
HCD-BX20i/BX50BTi
32
32
6-11. PRINTED WIRING BOARDS - MAIN Section -
•
: Uses unleaded solder.
• See page 25 for Circuit Boards Location.
JW217
CN321
CN303
C309
C115
C110
C215
C1
18
C210
C218
C331
CN323
C389
C214
C114
C395
C220
C120
JW474
JW475
JW312
C367
JW398
JW395
JW397
JW406
JW402
JW432
JW401
JW438
JW304
JW369
JW363
JW330
JW325
JW327
JW315
JW442
JW373
JW431
JW435
JW489
JW322
JW324
C369
JW376
JW333
JW334
JW341
JW343
JW328
JW336
JW361
JW486
JW456
JW371
JW372
JW487
JW370
JW340
JW339
JW463
JW403
JW400
R153
JW436
JW430
JW433
JW393
JW358
JW365
JW364
EP302
JW465
CN309
JW450
C364
JW349
JW472
JW469
JW464
C386
C352
C344
JW480
JW481
JW451
C303
JW377
JW482
JW483
JW459
C301
JW360
JW458
JW446
JW470
JW434
JW457
JW476
X302
JW310
D321
JW368
JW485
CN310
1
2
10
11
C350
JW306
JW331
JW332
CLP311
JW429
JW405
R253
D318
L101
C379
JW359
J302
C351
CN312
JW326
JW428
EP301
JW342
D323
JW316
JW488
JW471
C126
JW399
JW347
C127
C226
C102
JW348
JW301
C116
C227
JW354
JW404
JW317
JW337
JW305
C394
C216
JW323
JW379
JW335
JW303
JW302
JW314
JW345
C363
JW344
JW479
JW444
JW423
JW313
C319
JW443
CN311
CN305
1
21
20
2
JW445
JW388
X301
C336
JW407
JW321
JW439
JW460
JW441
JW353
JW454
C371
C375
C377
JW410
JW366
JW308
JW484
CN306
JW384
JW389
CN316
L201
JW478
JW307
JW437
JW394
IC311
JW473
IC307
JW309
JW396
JW387
JW329
JW417
JW425
C208
C202
JW350
JW440
C108
JW357
JW374
JW367
JW416
JW415
D331
JW385
JW455
JW424
JW418
JW420
JW419
JW490
JW408
JW412
JW452
JW386
Q392
R314
CN322
JW382
JW427
JW426
JW390
JW383
JW378
JW392
JW421
JW422
R308
R312
JW409
JW41
1
JW414
JW380
C391
CN325
JW338
JW413
JW391
JW381
CN301
JW477
JW467
JW346
JW447
JW355
JW362
JW352
JW356
C324
Q390
JW461
JW318
JW31
1
JW462
JW448
JW466
JW468
JW351
JW375
Q304
C365
CN313
C387
Q317
C307
C304
A
A
K
CN314
IC305
C325
C335
R1
16
R216
R775
IC309
R744
C308
R115
R114
R1
13
R112
R111
R107
Q310
R207
R108
R208
R21
1
R212
R213
R214
R215
R452
R455
R456
R479
R745
IC312
C382
Q319
Q320
R119
R120
R121
R219
R220
R221
R359
R360
R361
R362
R453
R704
Q312
JR498
JR317
JR318
JR319
JR345
JR334
D325
R473
Q203
JR313
C368
IC304
R234
R134
D330
D329
R303
JR330
JR324
R104
R204
R1
10
C499
R210
C109
C498
Q345
JR336
JR337
JR335
R703
R131
R702
JR341
JR315
JR340
C209
JR333
R770
R768
R769
R760
R231
R757
R785
R784
R786
C230
R766
R773
JR303
JR312
D320
Q342
D319
R783
R782
R781
JR301
R778
R777
R705
IC201
R789
R774
R792
R791
R793
JR314
JR332
R722
R724
R746
R741
R734
R733
R732
R731
R728
R727
R726
R725
R718
R747
R748
R720
R719
JR308
R717
C130
R716
R711
R709
R707
R706
R759
C101
C103
C104
C111
C1
13
C1
17
C1
19
C122
C123
C125
C201
C203
C204
R309
C21
1
C213
C217
C219
C222
C223
C225
D313
JR302
C766
C337
JR309
JR307
D302
D303
JR342
D304
E
C359
D309
R109
R713
Q103
IC301
JR320
R302
JR325
C366
IC310
C362
C361
D322
D332
IC303
C355
JR211
C348
JR101
JR107
JR201
JR213
JR207
C342
C341
C340 C339
C338
Q341
Q340
Q338
Q333
JR214
C333
(NC)
Q307
JR219
C330
Q315
Q316
JR221
JR331
JR222
Q343
Q344
Q347
Q348
JR223
R209
R101
R102
R103
R105
R106
JR316
C316
R117
R122
R123
R124
R125
R126
R129
R130
R201
R202
R203
R205
R206
JR304
JR306
JR305
R217
R222
R223
R224
R225
R226
R227
R229
R230
Q313
C311
C310
Q301
C305
JR329
R345
R347
R348
R349
C302
JR322
Q302
R409
R410
R411
Q303
R413
R416
Q305
R419
R420
R421
Q306
JR326
Q309
R425
R427
R428
JR327
JR328
R431
JR321
R435
R436
R439
JR344
R441
JR343
R449
R450
R458
R459
R460
R461
Q393
R463
R469
R470
R471
R475
R415
R478
R481
R482
R484
R301
R307
R487
R488
R489
R315
R495
R496
R498
R317
R500
R51
1
R600
R611
R344
JR323
R356
R364
R396
R403
R404
R406
R407
R408
R412
R414
R128
R417
R418
R448
R447
R429
R430
R432
R433
R424
R422
R753
R462
R464
R465
R466
R467
R468
R472
R477
R780
R485
R486
R492
R493
R494
D774
R700
R701
R228
R311
R313
R316
C132
C232
CN324
D305
IC306
R437
R401
C373
C380
MAIN BOARD
E
PANEL
BOARD
F
TOP KEY
BOARD
CN802
K
MOTOR
BOARD
BOARD
CN001
CD BOARD
CN201
A
IP BOARD
CN101
C
BT BOARD
CN901
B
K
K
A
1
4
1
9
E
E
E
E
E
E
E
E
E
E
A
K
K
E
K
K
A
E
E
AMP BOARD
CN308
D
E
E
E
E
3
1
E
E
K
K
A
E
E
K
A
A/K
K
A
K/A
E
E
J
H
G
HP BOARD
CN317
AMP BOARD
CN320
POWER BOARD
CN904
(CHASSIS)
(CHASSIS)
1
1
10
3
4
5
1
6
1
5
1
8
1
12
E
E
E
E
E
E
E
1-876-051-
1-876-057-
11, 12
1
3
1
3
(11, 12)
9VREG BOARD
(BX50BTi)
(BX20i)
(BX20i)
5
4
1
3
(BX50BTi)
TUNER (FM/AM)
SUPPLIED WITH THE
ASSEMBLED BLOCK
ANTENNA
M901
(FAN)
(FAN)
AM
FM 75
COAXIAL
M
(BX20i)
(BX20i)
(BX50BTi)
(BX50BTi)
R
L
SPAEKER
(BX50BTi)
(BX20i)
(BX50BTi)
(BX20i)
(BX50BTi)
1-876-058-
11, 12
1
3
1
3
(11, 12)
5VREG BOARD
(EXCEPT BX20i: SP)
11, 12
(11, 12)
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
(EXCEPT BX20i: AEP)
(BX20i: AEP)
(EXCEPT BX20i: AEP)
(EXCEPT
BX20i:
AEP)
(BX20i: AEP)
(BX20i: AEP)
(Page
26)
(Page
38)
(Page
38)
(Page 26)
(Page 30)
(Page 28)
(Page 36)
(Page
40)
(Page 36) (Page 36)
Ref. No. Location
• Semiconductor Location
Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location
D302
H-4
D303
H-3
D304
C-7
D305
J-11
D309
F-2
D313
D-15
D318
B-8
D319
E-12
D320
E-13
D321
B-9
D322
H-7
D323
E-12
D325
H-8
D329
H-6
D330
G-11
D331
H-6
D332
G-13
D774
C-3
IC201
B-8
IC301
E-3
IC303
B-11
IC304
D-11
IC305
J-13
IC306
J-11
IC307
G-11
IC309
F-9
IC310
F-2
IC311
B-2
IC312
D-14
Q103
E-10
Q203
G-10
Q301
F-3
Q302
C-6
Q303
B-6
Q304
H-5
Q305
H-4
Q306
H-5
Q307
C-15
Q309
F-2
Q310
F-11
Q312
G-3
Q313
G-3
Q315
H-13
Q316
D-15
Q317
B-15
Q319
D-14
Q320
C-14
Q333
H-7
Q338
H-7
Q340
G-11
Q341
G-11
Q342
E-13
Q343
E-13
Q344
E-13
Q345
E-13
Q347
C-15
Q348
C-16
Q390
C-7
Q392
C-6
Q393
C-7
Ver. 1.4
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