Sony CMT-BX70DBI / HCD-BX70DBI Service Manual ▷ View online
HCD-BX70DBi
HCD-BX70DBi
21
21
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
• All capacitors are in μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
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
– DAB board –
no mark : DAB
– IP board –
no mark : iPod
– Other boards –
no mark : TUNER (FM/AM)
( ) : CD PLAY
[ ] : iPod
< > : DAB
• Voltages are taken with VOM (Input impedance 10 M
no mark : CD PLAY
– DAB board –
no mark : DAB
– IP board –
no mark : iPod
– Other boards –
no mark : TUNER (FM/AM)
( ) : CD PLAY
[ ] : iPod
< > : DAB
• 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
L :
DAB
h :
AUDIO
IN
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.
• Indication of transistor.
C
B
These are omitted.
E
Q
C E
B
These are omitted.
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen from
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
Note: The components identifi ed by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specifi ed.
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Parts on the pattern face side seen from
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Circuit Boards Location.
DAB board
MAIN board
9VREG board
5VREG board
AMP board
IP board
TOP KEY board
PANEL board
POER board
MOTOR board
HP board
CD board
HCD-BX70DBi
HCD-BX70DBi
22
22
•
: Uses unleaded solder.
• See page 21 for Circuit Boards Location.
6-5. PRINTED WIRING BOARDS - CD Section -
R150
R149
R148
R108
R154
R153
C148
C1
10
C109
C30
1
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
C14
3
C120
R144
R157
C142
C141
C140
C10
0
C10
7
R408
R156
C124
C127
C126
CN301
R101
C1
19
C10
2
R415
R414
C103
R405
C113
R102
R402
R10
5
R106
C132
C138
C137
R135
R134
R136
R130
R12
8
R12
9
R143
R139
C136
R12
0
R114
C153
C112
R125
R126
C149
C139
R127
R1
18
R140
R151
C122
C123
R220
R104
S201
R155
C128
C106
C201
R304
R302
C30
9
C20
5
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 28)
(Page 28)
HCD-BX70DBi
HCD-BX70DBi
23
23
• See page 24 for waveforms. • See page 38 for IC Block Diagrams. • See page 40 for IC Pin Function Description.
6-6. SCHEMATIC DIAGRAM - CD Board -
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
R128
R129
R143
R142
R139
R114
R140
R15
1
R220
R150
R212
IC101
R105
R106
R125
R126
R127
IC201
X102
C301
C307
C309
C100
C13
8
C153
C151
C204
C130
C128
C1
13
C127
C126
C103
C102
C120
C118
C117
C101
C124
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 29)
Ver. 1.2
HCD-BX70DBi
HCD-BX70DBi
24
24
• See page 21 for Circuit Boards Location.
6-7. PRINTED WIRING BOARD - DAB Board -
•
: Uses unleaded solder.
- PANEL Board -
- MAIN Board -
- IP Board -
- CD Board -
FB
IC101 JB (RFi)
(CD play mode)
(CD play mode)
200 mV/DIV, 500 ns/DIV
0.5 to 1.3 Vp-p
FT
IC101 XG (XO)
(CD play mode)
(CD play mode)
1 V/DIV, 20 ns/DIV
59.1 ns
50 ns
3.3 Vp-p
XB
IC101 (XOUT)
1 V/DIV, 20 ns/DIV
1.7 Vp-p
RT
Q903 (Collector)
RB
IC902 U (OSCI)
1 V/DIV, 1
µs/DIV
1.3
µs
1.7 Vp-p
20 V/DIV, 5
µs/DIV
11.2
µs
32 Vp-p
2 V/DIV, 5
µs/DIV
11.2
µs
3.2 Vp-p
RE
Q903 (Base)
IC301 RE (XOUT)
1 V/DIV, 100 ns/DIV
1 V/DIV, 100 ns/DIV
IC301 RB (XCOUT)
30.6
µs
2.8 Vp-p
200 ns
3.1 Vp-p
JW801
JW802
JW806
JW807
JW808
W801
JW804
JW805
CN800
CN801
C805
C823
C818
C817
C828
C833
C834
C824
D804
D805
FB801
C827
C807
C802
R801
R832
R830
C821
R811
IC803
IC801
FB802
R81
5
C820
R816
R817
R818
R803
R804
C811
C812
C813
C814
R805
C808
R806
R807
R80
8
R809
R810
R814
C825
R813
IC802
R802
C806
R825
R826
R800
C804
C803
1-876-414-
11
(11)
1
2
29
30
1
3
4
5
1
3
4
5
B
MAINT BOARD
CN326
DAB BOARD
DAB TUNER
MODULE
ANTENNA
DAB 75
Ω
A
B
C
D
1
2
3
4
5
• Waveforms
(Page 28)
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