Sony CDX-M730 Service Manual ▷ View online
29
29
CDX-M730
8
9
11
10
4
2
1
3
5
4
6
8
7
BUS ON
SW
Q804
BUS INTERFACE
IC802
BATT
CNP801
(BUS CONTROL IN)
6
13
2
RESET
12
1
BUS
ON
DATA
CLK
3
BATT(L)
CHECK
BUF
IC303
7
6
LCD DRIVER
IC60
100
99
97
98
100
99
97
98
86
X351
18.43MHz
INH
CLK
DATA
CEO
INH
CLK
DATA
CE1
DIMMER
85
LED SW1
85
86
XTAL
LINK OFF
RES
BU IN
BUS ON
UNI SCK
UNI SI
UNI SO
EXTAL
X803
4MHz
66 CEO
69 INH
64 CKO
70
52
CEI
71 CE2
LCD +9V
ILL ON
+9V
62
RX
46
LED SW1
47
LED SW2
57
BOOT
SA CLK
SA IN
SA CLK
SA OUT
AEP,UK,E MODEL
60
LCD SO/TX
POWER
CONTROL
Q907,908
VREF
CONTROL
Q303,304
I
DET
Q302
SHIFT
Q909
POWER
CONTROL
Q903,904
LED
DRIVE
Q501,502
MOTOR
B+ REG
B+ REG
IC306
MT B+
KEY IN
MATRIX
AD ON
CONTROL
Q921
BATT
BU +6V
BU +5V
LCD 9V
MT B+
FLASH W
CLOSE SW
RT
INA1
SHIFT
OPEN SW
I DET
FPCTRL
MOT–
MOT+
FLSWPWON
FLS SO
FLS SI
LED SW1
LED SW2
BOOT
BATT
CD +6V
BZ801
BATT
98
1
112
101
38
34
81
50
97
SUB SYSTEM CONTROL
IC301
TUNER
SECTION
B
LCD1
LCD60
LCD DRIVER
IC61
98
97
99
84
INH
CE2
CLK
DATA
LED SW2
86
DIMMER
CN502
POWER
CONTROL
Q1,2
LCD +9V
DIMMER
CONTROL
Q3
ILL ON 9V
TX (SO)
RX (SI)
FL SW
1
3
I
DET
IC308
3
7
2
MOTOR
DRIVE
IC307
3
14
16
11
6
12
SW1001
(OPEN/CLOSE)
40
96
99
37
PWM 65
BEEP
DRIVE
Q803
BEEP
ON/OFF
DRIVE
Q906
15
CDM ON 111
DDC ON 57
+9V
ON/OFF
DRIVE
Q911
1
2
69
CENTER SW
100
101
82
KEY IN1
47
KEY IN0
46
RC IN1
79
KEY ACK
80 AD ON
72
SYSRST
6
BU IN
77
BUS ON
14
UNI CKO
19
UNI SO
18
UNI SI
17
RC IN0
48
12
115
116
106
13
98
97
2
3
OUT1 7
9
OUT2 10
INA2 14
VCC
DC/DC
CONVERTER
CONTROL
IC901
SIRCS 24
RSTX 90
HSTX 86
SYSTEM CONTROL
IC801 (3/3)
CNP803
(REMOTE IN)
M601
(OPEN/CLOSE)
100
D70
IC803
D513
IC902
RESET
IR
RECEIVE
IC62
7
IR
RECEIVE
IC502
7
16
16
SIRCS
INTERFACE
9
17
3
4
SW1002
(CENTER)
OPEN KEY
61
LSW60(1/2)
OPEN
(DISPLAY BOARD)
SW501
RESET
DETACH SW
64
S1
(DETACH)
NOSE SW
62
D512
(DISC IN)
LCD DRIVER
IC1
LED POWER
CONTROL
Q60,61
LCD +9V
DIMMER
CONTROL
Q62
BATT
BATT
LCD
Q912
Q806
BATT
CHECK(H)
Q920
LED62-69
LCD
BACKLIGHT
LED1,2
LCD
BACKLIGHT
TEST
TERMINAL
LSW60(2/2)
OPEN
S60
(RESET)
4-4. BLOCK DIAGRAM — DISPLAY SECTION —
(Page 28)
30
30
CDX-M730
tuner unit
(TU601)
(TU601)
IN SELF SW board
LOAD-SW board
SW board
DISPLAY board
KEY board
SERVO board
SL SW board
MAIN board
SUB(CD) board
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for schematic diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
•
f
: internal component.
•
C
: panel designation.
•
A
: B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
f
: AM/MW/LW
J
: CD
for printed wiring boards:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
x
: parts mounted on the conductor side.
•
a
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A)
(Side A)
parts face are indicated.
4-5. CIRCUIT BOARDS LOCATION
• Waveforms
— Servo Board —
(MODE: CD PLAY)
1
1.8Vp-p
2
3.3msec
IC1
ts
(PACK)
3
IC1
uj
(RFO)
4
Approx. 100mVp-p
IC1
oa
(FEO)
0V
5
Approx. 100mVp-p
IC1
od
(TEO)
19.9344MHz
IC1
wd
(XTAL)
5Vp-p
1.5Vp-p
0V
• Waveforms
—
Main Board
—
(MODE: FM)
1
3.8Vp-p
2
32.768kHz
IC801
uf
(XOA)
3
3.68MHz
IC801
os
(XO)
4
18.43MHz
IC301
ih
(EXTAL)
5
4MHz
IC803
4
(XOUT)
4.3MHz
IC601
4
(XO)
5.4Vp-p
2.6Vp-p
3.8Vp-p
3.5Vp-p
31
31
CDX-M730
IC B/D
IC B/D
TP77
TP78
TP78
R29
R30
R30
C1
C5
C43
TP79
TP80
TP80
TP81
TP82
TP83
TP84
TP82
TP83
TP84
CN2
CN3
TP85
M902
M901
SW2
TP4
TP2
TP2
TP3
M903
TP87
TP86
TP9 TP8
R3
R26
C4
C6
C3
TP10
C13
R5
C11
C15
C10
C8
C16
TP7
TP92
R6
TP17
TP20
TP16
TP19
TP20
TP16
TP19
C21
C22
R25
TP21
TP18
TP18
R24
R7
TP6
C17
FB1
TP11
TP12 C9
C14
TP89
C19
C20
C23
R9
R8
C24
TP22
TP23
TP24
TP25
TP88
FB4
C41
C26
C27
C34
C25
TP32
R14
R15
TP30
R12
R10
C30
TP91
C37
TP90
TP29
TP28
TP26
TP27
R21
R22
C36
TP34
TP35
TP36
TP46
TP37
TP38
TP39
TP40
TP41
TP42
TP43
TP44
TP45
C35
FB2
CN1
R18
R19
R20
R17
TP66
FB7
FB6
TP62
TP47
TP63
TP48
TP49
TP64
TP50
TP51
TP52
TP68
TP53
TP69
TP54
TP70
TP55
TP71
TP56
TP72
TP57
TP73
TP58
TP74
TP59
TP75
TP60
TP76
TP61
C38
X1
SW3
SW4
CN13
Q1
C18
IC2
FB3
IC1
TP5
TP1
TP1
C40
C29
C45
C44
SW5
• Refer to page 30 for Waveforms.
4-6. SCHEMATIC DIAGRAM — CD MECHANISM SECTION — • Refer to page 46 for IC Block Diagrams.
Note:
• Voltage is dc with respect to
ground under no-signal conditions.
no mark : CD PLAY
no mark : CD PLAY
(Page 38)
32
32
CDX-M730
4-7. PRINTED WIRING BOARDS — CD MECHANISM SECTION — • Refer to page 30 for Circuit Boards Location.
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
13
14
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