Sony CDX-MP40 Service Manual ▷ View online
21
21
CDX-MP40
• R-ch is omitted due to
same as L-ch.
• Signal path
:CD
:CD-R/RW(MP3)
84
85
82
83
16
12
D/A
CONV
TRACKING
ERROR
FORCUS
ERROR
9
1
OSC
EFM
DEMOD
SERVO
CTL
RF
EQ
EQ
52
56
54
55
DSUB CODE
PROCESS
8
7
6
5
4
3
2
33
40
9
10
71
94
83
84
85
35
36
37
28
I/F
87
86
97
98
LD
DRIVE
Q1
FOCUS
COIL
DRIVE
TRACKING
COIL
DRIVE
SLED
MOTOR
DRIVE
SPINDLE
MOTOR
DRIVE
LOADING
MOTOR
DRIVE
6
5
23
2
15
16
17
18
13
14
11
12
9
10
26
62 63 64 65
17
18
59
Q913,914
CDM ON
SWITCH
SWITCH
Q915
CD ON
SWITCH
Q916,D927
CD+5V
REG
Q912,D926
CD DRIVE+6V
REG
M902
(SLED)
M901
(SPINDLE)
M903
(LOADING)
SW3
(DISC IN)
SW2
(SELF)
SW4
(LIMIT)
X1
16.9344MHz
X2
12.288MHz
OPTICAL PICK-UP
KSS-721A
I-V
CONV.
CDL
STB
AO
TSO
38 PACK
34 TSTB
TSI
27 FLAG
TSCK
CD_RST
RFOK
XTALEN
/RESET
STANDBY
REQ
MIDIO(I2C_SDA)
MICK(I2C_SCL)
X1
SDO
SDIO
BCKIA
LRCKIA
63 XTAL
65 EXTAL
INSW/PH2
11
SW5
(DOWN)
D_SW
SELF SW
LIMIT_SW
LOAD
EJECT
CDMON
CDON
R-CH
MAIN
SECTION
A
A-ATT
MAIN
SECTION
B
23
24
M
M
M
BATT
D925
LOUT
ROUT
PACK
TSTB
TSI
TSCK
SI
RFOK
FLAG
C16M
DIN
DECXRST
DECSTBY
DECINT
SDA
SCL
DOUT
SCKIN
SCKO
LRCKIN
LRCK
SO
SCK
STB
AO
XTALEN
RST
RSTX
92
BUCHK
91
BUSON
78
UNI CK
77
UNI_SI
76
UNI_SO
75
LINKOFF
BU CHK
BUSON
BUS-CLK
BUS-SI
BUS-SO
LINK-OFF
93
A-ATT
A
C
B
D
E
F
PD
LD
B
D
A
C
E
F
PD
A+5V
LD
APC
FCS-
FCS+
TRK+
TRK-
SL-
SL+
SP+
SP-
LD-
LD+
FOCUS
COIL
TRACKING
COIL
FD
TD
SD
MD
LOAD
EJECT
IC3
CD MASTER CONTROL
IC1
RF AMP,DIGITAL SERVO
DIGITAL SIGNAL PROCESSOR
IC2
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING MOTOR DRIVE
FD
TD
SD
MD
A+5V
AU+5V
D+5V
DR+6V
38
28
29
30
31
32
33
34
62
9
12
13
14
2
3
72
80
1
19
39
5
81
6
4
1
2
IC12
IC5
DSP
IC7
5V 3.3V
17
3
14
12
7
16
18
6
8
13
4
2
5
15
9
11
SYSRST
MAIN
SECTION
C
MAIN
SECTION
D
21-23
25-29
25-29
20-13
3,2,31
1,12,4
1,12,4
11,7,10
46,47
49-51
53-55
49-51
53-55
3,4
7,10
11,15
38-36
34-31
41,42
45,44
38-36
34-31
41,42
45,44
32
30
5
16
17
43
OE
CS1
OE
CE
CE
WR
WR
IO0-IO7
DQ1-DQ3,
IO4-IO8
AD0-AD16
A0-A16
IC4
S-RAM
+2.5V
(IC5)
BU+3.3V
3
+2.5V
REG
2
IC6
3-3. BLOCK DIAGRAM — CD SECTION —
(Page 22)
(Page 22)
(Page 22)
(Page 22)
22
22
CDX-MP40
• R-ch is omitted due to same as L-ch.
• Signal path
:FM
:AM(MW/LW)
:CD
:CD-R/RW(MP3)
PJ601
(ANTENNA)
2
4
ANT
L
CDL
3
R
6
S-METER
5
QUALITY
14
SDA
13
SCL
17
SDA(EEP)
16
9
SCL(EEP)
RDS DET
TU501
TUNER UNIT
2
45
47
70
27
26
25
7
9
5
19
IC801 (1/2)
SYSTEM CONTROL
IC401
INPUT SELECTOR,
ELECTRONIC VOLUME,
SIGNAL PROCESSOR
AUX L
OUT LF
18
OUT LR
21
OUT RF
20
OUT RR
35
BEEP
ATT
72
67
AMP ON
74
AMP ATT
40
TEL ATT
38
ACC IN
CD L
RADIO L
R-CH
SDA
SCL
MUTE
VOL ATT
7 QUALITY
85 NS_MASK
VSM
I2C SIO
I2C CKO
EE SIO
EE CKO
DAVN(NIL)
AUDIO OUT REAR
CD
SECTION
A
CD
SECTION
B
CD
SECTION
C
CD
SECTION
D
Q904,905
LINE MUTE
SWITCH
Q402
MUTE
R-CH
Q401
MUTE
22 MUTE
4 STBY
16 AUX
11
12
5
3
9
7
IC501
POWER AMP
1
-1
-2
-5
-6
-3
-4
9
2
10
CNP901
R-CH
PJ401
FL+
FL-
RL+
RL-
4
12
FR+
FR-
3
11
RR+
RR-
16 +B (BATT)
13 ATT
5 AMP R
6
8
19
ANT R
GND
R-CH
BATT
F901
10A
Q901
TEL
ATT
ATT
Q911,D918,919
TUNER +5V
REG
Q909,910
TUNER ON
SWITCH
Q906,D917
+8V REG
Q907,908
POWER ON
CONTROL
Q921
AMP REM
CONTROL
CONTROL
SWITCH
Q920
AMP B+
SWITCH
Q917
ANT REM
CONTROL
SWITCH
Q922
ANT B+
SWITCH
7 ACC
15 TEST
69
50
TU ON
37
TEST IN
Q902
ACC
DETECT
POW ON
24
SYSRST
25
BUSON
43
BUSSI
44
BUSCKO
42
BUSSO
28
BU IN
86
87
7
TU MUTE
8
MUTE CONDITION
TU MUTE
TU ATT IN
30
88
BATT
Q804
BUS-SO
SWITCH
Q805,806
LIMNKOFF
SWITCH
Q802
SWITCH
BATT
BATT
Q903,D916
+5V REG
BATT
BU+5V
BU+3.3V
+8V
TUNER
+8V
TUNER
+5V
BATT
17
18
L
R
AUDIO OUT FRONT
R-CH
L
R
BUS AUDIO IN
R-CH
L
R
CDR
R-CH
8 CD R
IC601
RDS DECODER
IC803
BUS INTERFACE
27
13 RST
12 BUSON
8 DATA OUT
11 CLK IN
9 DATA IN
10 B/U-C
6
DATA I/O
4
CLK
2
RST
3
BATT
8
7
5
6
4
2
3
1
BATT
CNJ801
BUS
CONTROL IN
Q602
NS MASK
SWITCH
X601
4.332MHz
DELAY
BATT
D921
1
BUSON
33
1
RESET
S801
RESET
2
IC802
3
+3.3V
REG
2
IC902
BU+5V
RESET
16 MPX
4 OSCO
5 OSCI
SDA
SCL
9
10
DAVN 8
SYSRST
D810
D808
D818
A-ATT
D701
D802
D819
IC701
BUFFER
BU-CHECK
BUSON
BUS-SI
BUS-CLK
BUS-SO
LINK-OFF
2
6
5
3
7
1
AEP,UK MODEL
AEP,UK MODEL
Q801,D801
BATT DET
3-4. BLOCK DIAGRAM — MAIN SECTION —
(Page 21)
(Page 21)
(Page 21)
(Page 21)
23
23
CDX-MP40
3-5. BLOCK DIAGRAM — DISPLAY SECTION —
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
c
: CD-R/RW (MP3)
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.
• Waveforms
— SERVO Board —
(MODE: CD PLAY)
—
MAIN Board
—
1
2
3
4
2.8 Vp-p
59 ns
1V/DIV,20ns/DIV
5
1.2 Vp-p
82 ns
1V/DIV,40ns/DIV
Approx. 200m Vp-p
Approx. 300m Vp-p
100mV/DIV,20
µ
s/DIV
100mV/DIV,20
µ
s/DIV
500mV/DIV,1
µ
s/DIV
1.7 Vp-p
IC1
wd
(XTAL)
IC1
uj
(RFO)
IC1
oa
(FEO)
IC1
od
(TEO)
IC3
yd
(XTAL)
6
7
8
2V/DIV,40ns/DIV
3.2 Vp-p
54 ns
2V/DIV,20
µ
s/DIV
3.8 Vp-p
30.5
µ
s
2V/DIV,100ns/DIV
230 ns
5.5 Vp-p
IC601
4
(OSCD)
IC801
qs
(OSCOUT)
IC801
qh
(XOUT)
Q803
KEY
DETECT
CNP801
(REMOTE IN)
IC951(US,Canadian MODEL)
IC971(AEP,UK MODEL)
X802
32.768kHz
15
16
12
13
5
18
20
19
4
26
91
98
6
29
2
IC801 (2/2)
SYSTEM CONTROL
IC901
LCD DRIVER
(US,Canadian MODEL)
(AEP,UK MODEL)
KEY IN0
DATA
CLK
CE
LCDSO
LCDCKO
LCDCE
Q919
ILL ON
SWITCH
Q918
ILL B+
SWITCH
KEY IN1
KEY ACK
XKEYON
RC IN1
RC IN0
SIRCS
34 NOSE SW
XIN
XOUT
OSC OUT
92
ILLON
75
DOOR
IND
BATT
ILL B+
OSC IN
X801
18.432MHz
AEP,UK :LED933,934
US,CND:LED910,911
US,CND:LED910,911
LCD BACK
LIGHT
78
77
76
COM1
COM4
LCD901
LIQUID
CRYSTAL
DISPLAY
D809
D807
(
)
AEP,UK :LED903,911,951-954,LSW901(2/2),
904(2/2)-910(2/2),912(2/2)-922(2/2)
US,CND:LED901-906,LSW901(2/2)-917(2/2)
904(2/2)-910(2/2),912(2/2)-922(2/2)
US,CND:LED901-906,LSW901(2/2)-917(2/2)
KEY
ILLUMINATION
(
)
65
|
68
1
I
64
S1
I
S64
|
REMOTE
CONTROL
RECEIVER
AEP,UK :S911,LSW912(1/2)-922(1/2)
US,CND:S902,LSW908(1/2)-917(1/2)
US,CND:S902,LSW908(1/2)-917(1/2)
FUNCTION SWITCH
AEP,UK :S902,903,931,LSW901(1/2),904(1/2)-910(1/2)
US,CND:S901,903,931,LSW901(1/2)-907(1/2)
FUNCTION SWITCH
US,CND:S901,903,931,LSW901(1/2)-907(1/2)
FUNCTION SWITCH
DOOR IND
SW
BATT
LED930,931
S802
(NOSE DET)
Q923,924
24
24
CDX-MP40
3-6. PRINTED WIRING BOARDS — CD MECHANISM SECTION — • Refer to page 20 for Circuit Boards Location.
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
13
14
R154
C75
C69
C58
C65
C55
C62
C54
C53
C51
IC6
C63
C60
C112
C57
R8
R9
R5
R7
C111
C114
C3
C6
C13
C16
C19
C24
C25
C29
C34
C36
C38
C35
C22
C30
C23
C77
C15
C20
Q1
R26
C79
R3
R13
R54
R55
C44
R65
R67
R73
R76
R77
R90
R91
R92
R94
R104
R105
R106
R107
R113
R114
R115
R121
R130
FB6
JR3
JR5
JR6
JR8
JR14
L4
R97
R98
R45
R46
R47
R48
JR17
JR21
C70
C78
C67
L8
IC12
C102
C81
L6
R152
Ref. No.
Location
IC1
E-8
IC2
H-8
IC3
D-3
IC4
G-2
IC5
G-4
(IC6)
E-3
IC7
F-6
(IC12)
E-4
(Q1)
C-8
• Semiconductor
Location
( ): SIDE B
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