Sony HCD-BX77DBI Service Manual ▷ View online
HCD-BX77DBi
HCD-BX77DBi
17
17
5-3. BLOCK DIAGRAM - MAIN Section -
AUDIO IN
R-CH
J301
CD-L
A
DAB-L
F
TUNER-L
E
iPod-L
B
PROTECT
J
10
3
1
26
SDA
25
SCL
AMP
DA
TA
24
AMP
CLOCK
22
INH
40
SEL
A
39
TA
LINE MUTE
23
OUT1
INPUT SELECTOR,
ELECTRICAL VOLUME,
SURROUND/TONE CONTROL
IC304
SYSTEM CONTROLLER
IC301 (3/4)
: AUDIO
: CD PLAY
SIGNAL PATH
R-ch is omitted due to same as L-ch.
: AUDIO IN
: TUNER (FM/AM)
D1
5
C1
SEL1
VOL1
B1
A1
INPUT SELECTOR
IC312
A
13
14
12
10
X1
X0
Q319
INH
6
Q320
X
11
MUTING
Q103
R-CH
23
MUTING
CONTROL
SWITCH
Q340, 341
: DAB
POWER AMP
IC601
11 CH1 IN
10
MONIT
OR
CH1 OUT+ 4
CH1 OUT– 5
CH1 OUT– 5
13
STBY
J500
R-CH
PHONES
SPEAKER
+
–
–
–
+
R
L
J302
DC
DETECT
Q342 – 344
POWER
MONITOR
Q345
M901
(FAN)
+9V
M
M
AC DET
K
D313
STK-ON
53
FAN MOTOR
DRIVE
Q316, 317
FAN MOTOR
DETECT
Q307, 347, 348
: iPod
7
(Page 15)
(Page 16)
(Page 16)
(Page 16)
(Page 18)
(Page 18)
HCD-BX77DBi
HCD-BX77DBi
18
18
5-4. BLOCK DIAGRAM - PANEL, POWER SUPPLY Section -
SIRCS
4
SYSTEM CONTROLLER
IC301 (4/4)
(AC IN)
T902
SUB POWER
TRANSFORMER
RY901
T901
MAIN POWER
TRANSFORMER
RECT
D911 – 914
D923
D922
D330
D920
PROTECT
D332
D322
D318, 321
D303
D804, 805
AMP B+
F901
F902
TO
POWER AMP
AMP B–
+9V
REGULATOR
IC305
REGULATOR
Q304 - 306
UNREG SUB
UNREG SUB
SYS +3.3V
+9V
RECT
D907, 908
EVER +3.3V
RESET SIGNAL
GENERATOR
IC310
RELAY
DRIVE
Q315
LF901
LINE
FILTER
TUNER, DAB +9V
5
STBY-RELAY
20
AC CUT
66
I-POWER MONITOR
12
RESET
REMOTE CONTROL
RECEIVER
IC901
X301
32.768kHz
11
10
XCOUT
INOUT
13
15
X302
5MHz
XOUT
XIN
S801, 803 – 807,
S809 – 821
(FRONT PANEL KEYS)
KEY1 – KEY3
RESET
SWITCH
Q309
AC DETECT
Q301
B+ SWITCH
Q312, 313
VM +7V
RECT
D924 – 927
+5V
REGULATOR
IC306
VBUS POWER
ON/OFF SWITCH
IC201
VBUS +5V
DAB +3.3V
DAB +1.2V
+3.3V
REGULATOR
IC801
+1.2V
REGULATOR
IC802
IP +3.3V
+3.3V
REGULATOR
IC102
CD +1.5V
+1.5V
REGULATOR
IC201
KEY WAKE UP
74
D774
STANDBY
D902
STANDBY LED
89
LED DRIVE
Q901
57
CD ON
94
X5V FLAG
80
DMPORT POWER
52
51
DAB-POWER 1.2V
DAB-POWER 3.3V
AVDD +3.3V
DVDD +3.3V
+3.3V
REGULATOR
Q302, 303,
Q390, 392
RECT
D916 – 919
AC DET
K
PROTECT
J
+9V +4V
VOLTAGE
DETECT
Q393
PROTECT
DETECT
Q333, 338
VFL
FL901
FLUORESCENT
INDICATOR TUBE
T801
DC/DC
CONVERTER
RECT
D904, 905
OSC
Q903
GRID DRIVE
Q905
90
91
93
92
91
93
92
FL RESET
FL CS
FL SCLK
FL SD
FL SCLK
FL SD
RSTB
CSB
CLKB
DIN
GR1
AD2, AD1 SG5 – SG35,
SG1 – SG4
GR2 – GR11
FLUORESCENT
INDICATOR TUBE DRIVER
IC902
+9V
52
32
53
54
55
54
55
1 – 31, 61 – 64
33 – 42
59, 60
81 – 83
+9V
REGULATOR
IC307
(Page 17)
(Page 17)
HCD-BX77DBi
HCD-BX77DBi
19
19
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.
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
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 :
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 : Internal component.
•
: Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)
• 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.
from 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.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
DAB board
MAIN board
9VREG board
5VREG board
AMP board
IP board
TOP KEY board
PANEL board
POWER board
MOTOR board
HP board
CD board
• Circuit Boards Location.
HCD-BX77DBi
HCD-BX77DBi
20
20
R150
R149
R148
R108
R154
R153
C148
C1
10
C109
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
T CLOSE
M
M001
(LOADING)
X102
(Page 26)
(Page 26)
5-5. PRINTED WIRING BOARDS - CD Section -
•
: Uses unleaded solder.
• See page 19 for Circuit Boards Location.
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