Sharp CDXMP-450-X Service manual

CDX-MP450X

SERVICE MANUAL

Ver 1.0 2001. 02

• The tuner and CD sections have no adjustments.

AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC DISTORTION 19 watts per channel minimum continuous average power into 4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more than 1% total harmonic distortion.

CD player section

System Compact disc

digital audio system Signal-to-noise ratio 90 dB Frequency response 10 – 20,000 Hz Wow and flutter Below measurable limit Laser Diode Properties

Material GaAlAs Wavelength 780 nm Emission Duration Continuous Laser output power Less than 44.6 µW*

* This output is the value measured at a distance

of 200 mm from the objective lens surface on the Optical Pick-up Block.

Tuner section

FM

Tuning range 87.5 – 107.9 MHz Antenna terminal External Antenna connector Intermediate frequency 10.7 MHz Usable sensitivity 9 dBf Selectivity 75 dB at 400 kHz Signal-to-noise ratio 65 dB (stereo),

68 dB (mono) Harmonic distortion at 1 kHz

0.7% (stereo),

0.4% (mono) Separation 35 dB at 1 kHz Frequency response 30 – 15,000 Hz

AM

Tuning range 530 – 1,710 kHz Antenna terminal External Antenna connector Intermediate frequency 10.7 MHz/450 kHz Sensitivity 30 µV

SPECIFICATIONS

US Model

Model Name Using Similar Mechanism NEW CD Drive Mechanism Type MG-383KU-121//K Optical Pick-up Name KSS-720A

Power amplifier section

Outputs Speaker outputs

(sure seal connectors)

Speaker impedance 4 – 8 ohms Maximum power output 50 W × 4 (at 4 ohms)

General

Outputs Audio outputs (front/rear)

Power Antenna relay control lead Power amplifier control lead

Inputs Telephone ATT control lead

Antenna input connector Remote controller input connector

Tone controls Bass ±9 dB at 100 Hz

Treble ±9 dB at 10 kHz

Power requirements 12 V DC car battery

(negative ground)

Dimensions Approx. 178 × 50 × 183 mm

(7 1/8 × 2 × 7 1/4 in.) (w/h/d)

Mounting dimensions Approx. 182 × 53 × 162 mm

(7 1/4 × 2 1/8 × 6 1/2 in.) (w/h/d)

Mass Approx. 1.3 kg

(2 lb. 10 oz.)

Supplied accessories Parts for installation and connections (1 set)

Front panel case (1) Card remote commander RM-X114

Design and specifications are subject to change without notice.

9-870-292-11

FM/AM COMPACT DISC PLAYER

Sony Corporation

Audio Entertainment Group General Engineering Dept.

1

CDX-MP450X

3-2. BLOCK DIAGRAM — TUNER SECTION —

CNJ601

(ANTENNA)

2

MPEG

SECTION

(Page 24)

DRIVER +5V

MECHA ON

CD ON

AUDIO+3.3V

D+3.3V

A+13.3V

1

2

AM ANT

FM ANT

TUNER UNIT

TU601

AM DET

FM DET

LCL/DX

S-METER

IFC/SEEK

Q905

Q901,IC903

L-OUT

R-OUT

VCO

MONO

FM +B

TU +B

AM +B

REG

1

CD

SECTION

L-CH

(Page 23)

18

16

12

22

4

VT

5

6 11 19

SD

20 21

8

9

10

R-CH

AM POWER

CD MECHA

POWER CONTROL

Q906-908

LOW PASS

FILTER

Q603,604

FM POWER

CONTROL Q602,607

CONTROL Q601,606

BATT

POWER

CONTROL

Q909,923,924

3

MPEG

CD POWER

CONTROL Q902-904

BATT

SECTION

(Page 24)

8

CD

SECTION

L3

36

L2 LTOUT LSIN LFIN

37

L1

38

ST IN

64

LCL/DX

39

ED1 PDOUT

35

VCOH FM

31

VCOL AM

32

MONO

45

S-METER

26

SD

46

FM IFC

29

AM IFC

28

BATT

FM ON

51

AM ON

52

MSC

MSI

MSO

MSRQ

MCS

SYSRST

SELF SW

68 69 70 71 72

6

2

MSC MSI MSO MSRQ MCS SYSRST

SELF SW

ELECTRONIC VOLUME

28

27

SYSTEM CONTROL

IC801(1/2)

POWER IC ON

IC401

LSOUT

VOL CE

VOL DATA

VOL CLK

MUTE

BEEP

AMP MUTE

TEL MUTE

ACC IN

BU IN

ANT ON

AMP ON

23 22

47 49 48

8

40

17 19 16

41

78

58

60

TONE

CEDICL

18 17 16

BU+3.3V

FL

21

20

RL

(Page 24)

MPEG

SECTION

4

A MUTE

ACC CHECK

Q913,914

BU CHECK

Q911,912,922

VIDEO +6V

BU+5V

REG

IC904

MUTE DRIVE

Q401,402

ACC

BATT

Q405

1

5

Q406

BU CHECK

POWER SUPPLY

IC901

AMP ON

BU+B

5

AMP+B

VCC

IN2

12

IN1

11

AUX

16

IN

STBY MUTE

MPEG

SECTION

2

4

POWER AMP

IC902

4 22

+

OUT2

OUT2-

+

OUT1

OUT1-

(Page 24)

AM POWER

CONTROL Q915,916

BATT

PJ401-3

L

AUDIO OUT

R-CH

5

3

9

7

R-CH

Q407

-4

PJ401-1

-2

CNP901

1

9

2

10

3

11

4

12

13

15

R

L

R

FL+

FL–

RL+

RL–

RR+

RR-

FR+

FR-

TEL MUTE

PERK

FRONT

AUDIO OUT

REAR

Signal path

: FM

: AM

: CD AUDIO

6

ANT REM

5

AMP REM

BATT

ACC

16

BATT

7

ACC

8

GND

(Page 23)

2222

3-3. BLOCK DIAGRAM — CD SECTION —

CDX-MP450X

OPTICAL PICK-UP

BLOCK

KSS-720A

A

B

C

D

E

F

PD

LD

TRACKING

COIL

FOCUS

COIL

I - V

CONV

SPINDLE

MOTOR

LOADING

MOTOR

LD

DRIVE

Q511

M902

SLED MOTOR

TR+

TR–

F+ F–

M901

M903

RF AMP

IC511

RFAC

RFDCO

FE

TE

RW/R

6

23

14

16

12

VCA

A + B + C + D

A

6

B

7

C

8

D

9

A + C B + D

E

10

F

11

PD

2

APC

LD

1

DRIVER

IC512

M

6 7

8 9

10 11

12

M

13

M

5 4

SLED

MOTOR

DRIVE

TRACKING

COIL

DRIVE

FOCUS

COIL

DRIVE

SPINDLE

MOTOR

DRIVE

LOADING

MOTOR

DRIVE

NUTE1 NUTE2

A + B + C + D

COMP

31 32

25 24

22 21

18

1 2

34 35

EQ

AMP

SFDR

SRDR

TFDR

TRDR

FFDR

FRDR

RFAC

61 92

RFDC

54

FE

50

52

51

38 39

40 41

42 43

35

TE

SE

MDP

A/D

CONV

SLED

SERVO

TRACKING

SERVO

FOCUS SERVO

EFM

DEM

DSP

IC516

D/A

I/F

CLV

SERVO

SERIAL

I/F

PWM AMP

PWM

SUB CODE

PROCESSOR

CPU

I/F

FOK

AMP

XTAI

PCMDI

BCKI

LRCKI

PCMD

BCK

LRCK

C2PO

EMPHI

LOCK

GFS

SQSO

SQCK

SCOR

DATA

CLOCK

XLAT

SENS

SCLK

FOK

XRST

L-CH

95

R-CH

86

IC515

80 82 78

79 81 77 23

84 34

22

6 7

24

13 15 14 16 17

32

11

DA XCK

DA DATA DA BCK DA LRCK

CD PCMD

CD BCK CD LRCK CD C2PO

CD SYSTEM CONTROL

EMPHO

21 61

LOCK

56

GFS

43

TEXT IN

28

SUBQ SQCK

30 45

TEXT CLK

76

SCOR

22

CD DATA

24

CD CKO CD XLAT

23

SENS

63

SCLK

69

FOK

55

CD RST

34

81

LM EJECT LM LOADING

70

4

RW/R SLD MINUS

5

82

DRV OE

IC513(1/2)

SELF SW

IN SW

LIMIT

SW

D SW

E/(U)

TUNER

1

SECTION

(Page 22)

MPEG

7

SECTION

(Page 24)

MPEG

6

SECTION

(Page 24)

SELF SW

6

64

27

25

SW1

7

(DOWN)

Signal path

: CD AUDIO

8

SW2

(SELF)

SW3

(DISC IN)

SW4

(LIMIT)

TUNER

SECTION

(Page 22)

23 23

CDX-MP450X

3-4. BLOCK DIAGRAM — MPEG SECTION —

MPEG DECODER

IC514

CD

SECTION

(Page 23)

CD PCMD

CD BCK

6

CD LRCK

CD C2P0

180 184 182 185

13

128

79 82 85 86 90 84 80

CD DATA CD BCK

CD LRCK CD C2P0

RESET

ROM CS

LDQM MWE SD CAS SD RAS SD CSO SD CLK UDQM

MEMORY CONTROL

MDATA 0-15

53,54,56,58-60 62,64,66,68,70

72-74,76,78

MD 0-15

PROGRAM

STREAM

DEC

MADDR 0-18

CD-DA

DEC

MPEG AUDIO

DEC

LYLICS

DEC

MPEG AUDIO

DEC

OSD DEC

HOST

I/F

H DATA 0-7

96,98-100,102,104-106

108,110-112,114,116

118,120-122,124

MA 0-18

AUDIO

DSP

VIDEO

MIX

HADDR 0-2

2-4,6

8-11

DIGITAL

AUDIO

I/F

VDATA 0-7

202 - 204

DA DATA1

DA BCK

DA LRCK

DA XCK

HSYNC VSYNC

VCLK

SYSCLK

R/W

WAIT

CS

RD

INT

163 167 166 169

154,155

142,143,145

148,150,152

157 158 177 178

206 207 208 15 16

IC519

X514

27MHz

DA DATA DA BCK

DA LRCK DA XCK

7

CD SYSTEM CONTROL

94

H CS TV RST H R/W

89 90

HRD

11

H WAIT

12

H INT

H ADDR 0-2

91 - 9313 - 20

CD

SECTION

(Page 23)

IC513(2/2)

SDA SCL

CD ON

CDM ON

71

9

10

3

CD ON

2

100

MECHA ON

TUNER

SECTION

(Page 22)

SDRAM

IC520

2,3,5,6,8,9 11,12,39,40,42 43,45,46,48,49

LDQMWECAS

14 15 16 17 18 36

MD 0-15

DQ 0-15

RASCSCLK

A0-10,BA

UDQM

19-24 27-32

MA 0-11

21-23 25-29

Q0-7

CE

3035

MD 0-7

1-7

10-20,31

A0-18

ROM

IC521

MA 0-18

XTAL

EXTAL

MSC

MSI

MSO

MSRQ

MCS

RESET

A MUTE

40

41

79

78

77 32 80 38

1

IC523

X511

12MHz

MSC

MSI

MSO

MSRQ MCS SYS RESET

A MUTE

3

4

TUNER

SECTION

(Page 22)

TUNER

SECTION

HDATA 0-7

(Page 22)

BU IN

75

BU CHECK

5

TUNER

SECTION

(Page 22)

H RST

96

2424