Sony CDX-MP450X Service Manual ▷ View online
21
21
CDX-MP450X
Pin No.
Pin Name
I/O
Pin Description
58
ANT ON
O
Car antenna control output
59
EZ SEL
I
Rotary commander shift key input
60
POWER ON
O
System power on/off control and power amplifier control output
61 – 63
NC
—
Not used. (Open)
64
ST IN
I
FM stereo indicator input (L: FM STEREO ON, H: FM MONO ON)
65
LCD CK0
O
Clock data output for LCD driver IC.
66
LCD SO
O
Serial data output for LCD driver IC.
67
NC
—
Not used. (Open)
68
MSC
O
Serial clock output to slave microcomputer IC.
69
MSI
I
Serial input from slave microcomputer IC.
70
MSO
O
Serial output to slave microcomputer IC.
71
MSRQ
I
Serial request input from slave microcomputer IC.
72
MCS
O
Chip select output to slave microcomputer IC.
73
NC
—
Not used. (Open)
74
VREF
—
Reference power supply voltage pin
75
GND0
—
Ground
76
X OUT
O
Crystal oscillator output (4.5 MHz)
77
X IN
I
Crystal oscillator input (4.5 MHz)
78
BU IN
I
Back-up power supply input
79
VDD0
—
Power supply pin
80
RESET
I
Reset input
22
22
CDX-MP450X
MPEG
SECTION
5
MPEG
SECTION
4
CD
SECTION
1
MPEG
SECTION
3
CD
SECTION
8
MPEG
SECTION
2
AM ANT
R-OUT
FM ANT
2
1
16
TUNER UNIT
TU601
R-CH
L-CH
TONE
FL
RL
23
22
21
20
36
28
37
38
27
18 17 16
12
11
5
3
9
7
4
22
STBY
MUTE
RR+
RR-
FR+
FR-
TEL MUTE
BATT
AMP REM
ACC
BATT
R-CH
R-CH
ACC
ANT REM
13
PERK
15
RL–
10
6
5
16
7
RL+
2
3
11
4
12
FL–
9
1
FL+
PJ401-3
PJ401-1
CNP901
IN2
OUT2+
OUT2-
OUT1+
OUT1-
IN1
POWER AMP
IC902
47
49
48
SYSTEM CONTROL
IC801(1/2)
VOL CE
VOL DATA
VOL CLK
8
MUTE
35 ED1 PDOUT
31 VCOH FM
32 VCOL AM
45 MONO
26 S-METER
46 SD
29 FM IFC
4
LCL/DX
5
VT
51 FM ON
BATT
52 AM ON
68 MSC
BATT
BATT
LOW PASS
FILTER
Q603,604
6
VCO
11
MONO
19
S-METER
20
SD
21
IFC/SEEK
28 AM IFC
8
FM +B
9
TU +B
FM POWER
CONTROL
Q602,607
10
AM +B
AM POWER
CONTROL
Q601,606
DRIVER +5V
MECHA ON
REG
Q905
REG
Q901,IC903
CD MECHA
POWER CONTROL
Q906-908
POWER
CONTROL
Q909,923,924
Signal path
: FM
: AM
: CD AUDIO
CE
DI
CL
Q406
Q405
AUDIO+3.3V
D+3.3V
A+13.3V
CD ON
CD POWER
CONTROL
Q902-904
Q902-904
AM DET 12
L-OUT 18
22
FM DET
64 ST IN
39 LCL/DX
69 MSI
70 MSO
71 MSRQ
72 MCS
6 SYSRST
2 SELF SW
40
BEEP
17
POWER IC ON
19
AMP MUTE
16
TEL MUTE
41
ACC IN
78
BU IN
58
60
ANT ON
AMP ON
1 AMP ON
5 BU+B
2
AMP+B
4
VCC
GND
8
ACC CHECK
Q913,914
AM POWER
CONTROL
Q915,916
REG
IC904
BU CHECK
Q911,912,922
ACC
BATT
MUTE DRIVE
Q401,402
BATT
BATT
BATT
BU CHECK
POWER SUPPLY
IC901
R-CH
Q407
16
AUX
IN
IN
A MUTE
L
AUDIO OUT
FRONT
-4
-2
CNJ601
(ANTENNA)
MSC
MSI
MSO
MSRQ
MCS
SYSRST
SELF SW
VIDEO +6V
BU+5V
BU+3.3V
ELECTRONIC VOLUME
IC401
L3
L2
LTOUT
LSIN
LFIN
LSOUT
L1
R
L
R
AUDIO OUT
REAR
3-2. BLOCK DIAGRAM — TUNER SECTION —
(Page 23)
(Page 24)
(Page 23)
(Page 24)
(Page 24)
(Page 24)
23
23
CDX-MP450X
TUNER
SECTION
1
MPEG
SECTION
7
MPEG
SECTION
6
TUNER
SECTION
8
A
TRACKING
COIL
FOCUS
COIL
OPTICAL PICK-UP
BLOCK
KSS-720A
M
M
LOADING
MOTOR
SPINDLE
MOTOR
SW2
(SELF)
SW3
(DISC IN)
SW1
(DOWN)
B
C
D
PD
E
F
6
12
13
10
11
8
9
5
4
M
6
SLED
MOTOR
DRIVE
LD
DRIVE
Q511
SLED
SERVO
TRACKING
SERVO
FOCUS
SERVO
TRACKING
COIL
DRIVE
FOCUS
COIL
DRIVE
SPINDLE
MOTOR
DRIVE
LOADING
MOTOR
DRIVE
7
18
22
21
25
24
1
2
34
35
31
32
61
92
95
86
7
8
9
2
1
11
10
12
16
14
A + B + C + D
A + C
B + D
VCA
EFM
DEM
SERIAL
I/F
PWM
AMP
PWM
SUB CODE
PROCESSOR
CPU
I/F
AMP
A
+
B
+
C
+
D
+
B
+
C
+
D
COMP
COMP
D/A
I/F
EQ
AMP
APC
23
52
54
50
51
38
39
40
41
42
43
35
6
80
82
78
79
81
77
23
84
34
22
7
6
24
13
15
14
16
17
17
32
56
6
43
30
45
28
76
24
23
22
63
69
69
55
11
34
82
5
4
70
81
21
61
64
25
I - V
CONV
SFDR
SRDR
TFDR
TRDR
FFDR
FRDR
MDP
SE
TE
FE
RFDC
RFAC
FE
TE
RW/R
RFDCO
RFAC
FOK
DATA
CLOCK
XLAT
SENS
SCLK
XRST
CD DATA
CD CKO
CD XLAT
CD XLAT
SENS
FOK
LM EJECT
LM LOADING
LM LOADING
RW/R
SLD MINUS
SLD MINUS
DRV OE
CD RST
SCOR
SQCK
SQSO
FOK
GFS
SCOR
TEXT CLK
SQCK
SUBQ
TEXT IN
GFS
SELF SW
IN SW
LOCK
EMPHI
C2PO
LRCK
BCK
LRCKI
BCKI
XTAI
PCMDI
PCMD
CD C2PO
CD LRCK
SELF SW
DA LRCK
DA BCK
DA DATA
DA XCK
CD PCMD
CD BCK
LOCK
EMPHO
SCLK
IC515
R-CH
L-CH
A/D
CONV
CLV
SERVO
CD SYSTEM CONTROL
IC513(1/2)
D SW
7
E/(U)
SW4
(LIMIT)
27
LIMIT
SW
DSP
IC516
RF AMP
IC511
AMP
A
B
C
D
E
F
PD
LD
TR+
TR–
F+
F–
LD
DRIVER
IC512
M902
SLED MOTOR
NUTE1
NUTE2
M901
M903
Signal path
: CD AUDIO
3-3. BLOCK DIAGRAM — CD SECTION —
(Page 22)
(Page 24)
(Page 24)
(Page 22)
24
24
CDX-MP450X
CD
SECTION
7
TUNER
SECTION
2
TUNER
SECTION
3
TUNER
SECTION
4
TUNER
SECTION
5
CD
SECTION
6
180
184
182
185
185
13
79
82
85
86
90
84
80
14 15 16 17 18
36
2,3,5,6,8,9
11,12,39,40,42
43,45,46,48,49
43,45,46,48,49
53,54,56,58-60
62,64,66,68,70
62,64,66,68,70
72-74,76,78
30
35
CD-DA
DEC
MPEG
AUDIO
DEC
MEMORY
CONTROL
VIDEO
MIX
DIGITAL
AUDIO
I/F
19-24
27-32
27-32
2-4,6
8-11
21-23
25-29
25-29
1-7
10-20,31
94
89
89
90
11
12
75
1
38
80
32
77
78
79
41
40
100
3
10
9
71
91 - 93
13 - 20
202 - 204
163
167
166
157
158
177
178
208
206
207
169
96,98-100,102,104-106
108,110-112,114,116
118,120-122,124
142,143,145
148,150,152
154,155
PROGRAM
STREAM
DEC
LYLICS
DEC
OSD
DEC
MPEG
AUDIO
DEC
128
96
CD PCMD
CD BCK
CD LRCK
CD C2P0
CD DATA
CD BCK
ROM CS
RESET
LDQM
MWE
SD CAS
SD RAS
SD CSO
SD CLK
UDQM
CD LRCK
CD C2P0
CD C2P0
DA DATA
DA BCK
DA BCK
DA LRCK
DA XCK
DA XCK
DA DATA1
DA BCK
DA LRCK
DA XCK
H CS
TV RST
SDA
SCL
CD ON
CDM ON
XTAL
EXTAL
MSC
MSI
MSO
RESET
MSRQ
MCS
A MUTE
BU IN
H R/W
HRD
H WAIT
H INT
CS
R/W
RD
WAIT
INT
H ADDR
0-2
0-2
HDATA
0-7
0-7
H RST
Q0-7
MADDR 0-18
H DATA 0-7
HADDR 0-2
MPEG DECODER
IC514
VDATA 0-7
A0-10,BA
SDRAM
IC520
DQ 0-15
LDQM
WE
CAS
RAS
CS
CLK
UDQM
MD 0-15
MA 0-11
MD 0-7
MA 0-18
MA 0-18
MD 0-15
MDATA 0-15
CE
A0-18
ROM
IC521
HOST
I/F
HSYNC
VSYNC
VCLK
SYSCLK
15
16
CD ON
MECHA ON
MSC
MSI
A MUTE
MSO
BU CHECK
MSRQ
MCS
MCS
SYS RESET
IC519
X511
12MHz
CD SYSTEM CONTROL
IC513(2/2)
X514
27MHz
IC523
AUDIO
DSP
3-4. BLOCK DIAGRAM — MPEG SECTION —
(Page 22)
(Page 22)
(Page 22)
(Page 22)
(Page 23)
(Page 23)
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