Sony HCD-BX20I / HCD-BX50BTI Service Manual ▷ View online
HCD-BX20i/BX50BTi
HCD-BX20i/BX50BTi
25
25
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
• All capacitors are in μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in
Ω and
1
/
4
W or less unless otherwise
specifi ed.
• f :
internal
component.
• 2 : nonfl ammable resistor.
• C : panel designation.
• 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.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
– CD board –
no mark: CD PLAY
– BT board –
no mark: BLUETOOTH
– IP board –
no mark: iPod
– Other board –
no mark: TUNER (FM/AM)
( ) : CD PLAY
[ ] : iPod
< > : BLUETOOTH
• Voltages are taken with VOM (Input impedance 10 M
no mark: CD PLAY
– BT board –
no mark: BLUETOOTH
– IP board –
no mark: iPod
– Other board –
no mark: TUNER (FM/AM)
( ) : CD PLAY
[ ] : iPod
< > : BLUETOOTH
• Voltages are taken with VOM (Input impedance 10 M
Ω).
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
f :
TUNER
(FM/AM)
J
: CD PLAY
O :
iPod
E
: BLUETOOTH IN
j
: BLUETOOTH OUT
h :
AUDIO
IN
• Abbreviation
AUS :
AUS :
Australian
model
CND :
Canadian
model
SP
: Singapore model
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : parts extracted from the conductor side.
• f :
• 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:
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts on the parts face side seen from
the pattern face are indicated.
Parts on the pattern face side seen from
the parts face are indicated.
the pattern face are indicated.
Parts on the pattern face side seen from
the parts face are indicated.
Note:
The components identi-
fi
The components identi-
fi
ed by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specifi ed.
cal 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 nu-
méro spécifi é.
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une piéce portant le nu-
méro spécifi é.
• Indication of transistor.
C
B
These are omitted.
E
Q
C E
B
These are omitted.
• Circuit Boards Location
BT board (BX50BTi)
MAIN board
9VREG board
5VREG board
AMP board
IP board
TOP KEY board
ANT board (BX50BTi)
PANEL board
POER board
MOTOR board
HP board
CD board
VOL SELECT board (BX20i: Singapore model)
Caution:
Parts face side:
(Conductor Side)
Pattern face side:
(Component Side)
Parts face side:
(Conductor Side)
Pattern face side:
(Component Side)
Parts on the parts face side seen from
the pattern face are indicated.
Parts on the pattern face side seen from
the parts face are indicated.
the pattern face are indicated.
Parts on the pattern face side seen from
the parts face are indicated.
Ver. 1.1
HCD-BX20i/BX50BTi
HCD-BX20i/BX50BTi
26
26
6-5. PRINTED WIRING BOARDS - CD Section -
•
: Uses unleaded solder.
• See page 25 for Circuit Boards Location.
R150
R149
R148
R108
R154
R153
C148
C1
10
C10
9
C301
C303
C302
C104
R1
10
C1
16
C404
R203
R204
R205
R206
R207
R208
R209
R210
R219
R223
R222
R147
R221
R218
R146
R145
C150
R113
C403
R202
C151
C108
C105
C147
C146
C145
C152
C1
18
C1
17
C144
C101
C125
CN201
C143
C120
R144
R157
C142
C141
C140
C100
C107
R408
R156
C124
C127
C126
CN301
R101
C1
19
C102
R415
R414
C103
R405
C113
R102
R402
R105
R106
C132
C138
C137
R135
R134
R136
R130
R128
R129
R143
R139
C136
R120
R114
C153
C112
R125
R126
C149
C139
R127
R1
18
R140
R151
C122
C123
R220
R104
S201
R155
C128
C106
C201
R304
R302
C309
C205
C207
C307
R303
C133
R111
R112
C115
R21
1
Q301
R301
C204
C202
C206
C306
R212
C401
C130
C405
IC201
IC401
IC101
R201
R142
CN001
S001
CD BOARD
(COMPONENT SIDE)
CD BOARD
(CONDUCTOR SIDE)
3
1
4
5
1
7
8
14
28
22
21
15
TP124
(VC)
TP121
(RFI)
1
25
26
50
51
75
76
100
1
21
A
MAIN
BOARD
CN305
16
1
1-872-135-
11
(11)
1-872-135-
11
(11)
OPTICAL PICK-UP BLOCK
(KSM-213DCP)
A
B
C
D
E
F
G
1
2
3
4
5
6
7
8
9
E
(LIMIT)
M401
(SPINDLE)
M402
(SLED)
M
M
1-866-548-
21
(21)
MOTOR BOARD
K
MAIN BOARD
CN311
DISC TRAY
OPEN/CLOSE
DETECT
OPEN 5CLOSE
M
M001
(LOADING)
X102
(Page 32)
(Page 32)
HCD-BX20i/BX50BTi
HCD-BX20i/BX50BTi
27
27
6-6. SCHEMATIC DIAGRAM - CD Board -
• See page 42 for Waveforms. • See page 42 for IC Block Diagrams. • See page 45 for IC Pin Function Description.
R108
R154
R153
C201
R304
R201
R110
R303
R203
R204
R205
R206
R207
R208
R209
R210
R219
R223
R222
R221
R218
R112
R202
R211
Q301
R301
C202
R157
TP121 (RFI)
TP124 (VC)
R156
CN301
R10
1
C401
R415
R102
R12
8
R129
R143
R142
R139
R114
R140
R15
1
R220
R150
R212
IC101
R105
R106
R125
R126
R127
IC201
X102
C301
C307
C309
C100
C138
C153
C151
C204
C130
C128
C1
13
C127
C126
C103
C102
C120
C118
C117
C101
C12
4
C125
R145
R146
R147
R148
R149
C149
C105
C143
C146
C145
C148
C104
C405
C404
C403
C205
C116
C133
CN201
C110
R113
R111
C115
R155
C109
C132
R104
C123
C122
C139
C150
R136 R135
R134
C112
C108
R120
R118
C136
C107
R130
R144
C144
C147
C140
C137
C141
C142
C106
R302
C306
C303
C302
R405
R402
R408
R414
C207
C152
C206
IC401
0
1M
1M
100
10V
2.2
0
10k
2.2
100
100
100
100
100
100
100
100
100k
100k
100k
100k
100k
100
0
100
2SA2119K
100k
100
10V
10V
100
100
16P
220
220
10V
47k
10k
470k
1k
47k
22k
47k
10k
0
0
100k
0
TK63115SCL-G@GT
0.1
1
0.001
0.1
470p
0.1
470p
0.1
0.1
0.0022
0.1
0.1
0.1
0.01
0.01
0.022
C119
0.022
0.022
0.1
0.0047
0.0047
0
0
0
0
0
22p
0.1
0.01
470p
0.01
47p
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
10k
100
22
6.3V
47
0.1
0.1
0
470p
470p
0.01
0.001
22k
470k
1M
0.1
0.1
47p
0.1
4.7k
22k
0.1
0.1
0.01
0.01
0.0022
0.1
100
10V
0
100
10V
10V
10
10
10k
2.2k
2.2k
4.7k
1
470p
1
BA5826SFP-E2
SP-
SP+
SL+
SL-
100
1M
1k
0
0
0
16.9344MHz
TC94A70FG-006
5p
5p
21P
0
100k
IC101
CD-MP3 PROCESSOR
IC401
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE MOTOR DRIVE
IC201
+1.5V REGULATOR
SP-
SP+
SL+
SL-
M401
(SPINDLE)
M402
(SLED)
AUTOMATIC POWER
CONTROL
S201
(LIMIT)
IC B/D
A
MAIN
BOARD(1/3)
CN305
32
31
IC B/D
OPTICAL
PICK-UP
BLOCK
(KSM-213DCP)
M
M
(Page 33)
Ver. 1.2
HCD-BX20i/BX50BTi
HCD-BX20i/BX50BTi
28
28
6-7. PRINTED WIRING BOARDS - BLUETOOTH Section (BX50BTi) -
•
: Uses unleaded solder.
• See page 25 for Circuit Boards Location.
IC904
CN903
CN902
FB907
C905
C958
C906
C904
C951
C953
C952
C954
C930
C929
C928
C927
C907
C966
C965
C903
IC903
C912
C908
CN901
FB903
FB904
FB914
FB913
FB905
C942
C922
C921
JR902
C901
C902
C941
R938
R939
R940
R966
R913
R937 R935
R936
R900
FB906
R955
R957
R953
R963
C957
R915
R916
R918
R917
D902
D901
R965
R932
R934
C926
R930
C924
R922
R926
R924
R928
C932
IC902
R954
R964
R959
R961
R960
R962
R956
R958
R952
R951
R945
C945
R947
R943
R949
R967
R941
IC901
R950
R971
R970
R969
R908
R948
C946
R946
R944
R974
R973
R972
R907
R942
R968
R910
R911
R909
R914
R921
C923
R929
C925
R925
R923
C931
R923
C931
R927
R931
R933
R901
R902
R903
R904
R905
R906
FB908
FB909
FB910
FB911
FB901
FB902
C914
CN904
B
MAIN BOARD
CN323
BT BOARD
(SIDE A)
1-873-212-
11
(11)
1
1
6
1
1
25
50
26
6
3
5
4
(NC)
(NC)
BLUETOOTH MODULE
BT BOARD
(SIDE B)
1-873-212-
11
(11)
K
A
A
K
A
A
ANT BOARD
1-873-213-
11
(11)
ANT901
PATTERN
ANTENNA
(FOR BLUETOOTH)
A
B
C
D
E
F
G
1
2
3
4
5
6
7
8
(Page 32)
Note: IC904 on the BT board cannot exchange with single. When IC904
on the BT board is damaged, exchange the entire mounted board.
Click on the first or last page to see other HCD-BX20I / HCD-BX50BTI service manuals if exist.