Sony CDXL-450 Service manual

CDX-L450

SERVICE MANUAL

Ver 1.0 2000. 12

The CDX-L450 is a front panel changed version of the CDX-4000R MODEL.
This service manual describes only differences from the CDX-3900R/4000R/4000RX.
Refer to the service manual for CDX-3900R/4000R/4000RX (9-870-071-S) for other information.

DIFFERENCE OF PARTS LIST

Page CDX-4000R CDX-L450

Ref. No. Part No. Description Remark

41

53

55 X-3378-514-1 PANEL SUB ASSY

3-044-185-11 MANUAL, INSTRUCTION, INSTALL

(ENGLISH,SPANISH,SWEDISH,

3-044-185-21 MANUAL, INSTRUCTION, INSTALL

(FRENCH,GERMAN,DUTCH,ITALIAN,

3-044-185-31 MANUAL, INSTRUCTION, INSTALL

(ENGLISH,CZECH,POLISH,TURKISH,

3-044-187-11 MANUAL, INSTRUCTION (ENGLISH,

SPANISH,SWEDISH,PORTUGUESE)

3-044-187-21 MANUAL, INSTRUCTION (FRENCH,

GERMAN,DUTCH,ITALIAN,GREEK)

PORTUGUESE)

GREEK)

RUSSIAN)

Part No. Description Remark

X-3380-204-1 PANEL SUB ASSY

3-227-793-11 MANUAL, INSTRUCTION, INSTALL

(ENGLISH,FRENCH,GERMAN,ITALIAN,

3-227-793-21 MANUAL, INSTRUCTION, INSTALL

(ENGLISH,SPANISH,SWEDISH,PORTUGUESE

3-227-740-11 MANUAL, INSTRUCTION (ENGLISH,FRENCH,

3-227-740-21 MANUAL, INSTRUCTION (ENGLISH,SPANISH,

SWEDISH,PORTUGUESE,GREEK,RUSSIAN)

AEP Model

UK Model

DUTCH)

GREEK,RUSSIAN)

GERMAN,ITALIAN,DUTCH)

3-044-187-31 MANUAL, INSTRUCTION (GERMAN)
3-044-187-41 MANUAL, INSTRUCTION (ENGLISH,CZECH,

POLISH,TURKISH,RUSSIAN)

FM/MW/LW COMPACT DISC PLAYER

9-870-237-11

Sony Corporation

Audio Entertainment Group

Printed in Japan ©2000. 12

2000L0441-1D

Published by General Engineering Dept.

CDX-3900R/4000R/4000RX

SERVICE MANUAL

Ver 1.2 2001. 05

Photo: CDX-4000RX

• The tuner and CD sections have no adjustments.

SPECIFICATIONS

AEP Model

UK Model

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

CD player section

Signal-to-noise ratio 90 dB
Frequency response 10 – 20,000 Hz
Wow and flutter Below measurable limit

Tuner section

FM

Tuning range 87.5 – 108.0 MHz
Aerial terminal External aerial connector
Intermediate frequency 10.7 MHz/450 kHz
Usable sensitivity 8 dBf
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 66 dB (stereo),

72 dB (mono)

Harmonic distortion at 1 kHz

0.6% (stereo),

0.3% (mono)
Separation 35 dB at 1 kHz
Frequency response 30 – 15,000 Hz

MW/LW

Tuning range MW: 531 – 1,602 kHz

LW: 153 – 279 kHz
Aerial terminal External aerial connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity MW: 30 µV

LW : 40 µV

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

Power aerial relay control
lead
Power amplifier control
lead
Telephone ATT control
lead (CDX-4000R/4000RX only)

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

(w/h/d)

Mounting dimension Approx. 182 × 53 × 162 mm

(w/h/d)
Mass Approx. 1.2 kg
Supplied accessories Parts for installation and

connections (1 set)

Front panel case (1)

Design and specifications are subject to change without
notice.

9-870-071-12

2001E0400-1
© 2001. 5

FM/MW/LW COMPACT DISC PLAYER

Sony Corporation

e Vehicle Company
Shinagawa Tec Service Manual Production Group

1

3-2. BLOCK DIAGRAM — CD SECTION —

CDX-3900R/4000R/4000RX

OPTICAL PICKUP

KSS-720A

A

C
B

D

E
F

PD

LD

FOCUS

COIL

TRACKING

COIL

I-V

CONV.

M902
SLED

MOTOR

M901

SPINDLE

MOTOR

A

5

C

7

B

6

D

8

FOCUS
ERROR

E

11

TRACKING

F

ERROR

10

PD

4

LD

LD

DRIVE

Q101

TRACKING/FOCUS COIL DRIVE

SLED/SPINDLE/LOADING MOTOR DRIVE

10
11

12
13

AMP

LD

3

IC7

FOCUS

COIL

DRIVE

TRACKING

8

COIL

DRIVE

9

SLED

6

MOTOR

7

DRIVE

SPINDLE

MOTOR

DRIVE

RF AMP, LD APC,

ERROR AMP

IC1

22
21

25
24

31
32

18

RFO RFAC

RF
EQ

FE

TE

LD ON

HOLD SW

AGC CONT

16

14

13

22
21
20

DIGITAL SERVO,

DIGITAL SIGNAL PROCESSOR

IC501

LOUT1
LOUT2

LOCK

SQSO
SQCK
SCOR

XRST
DATA
XLAT
SCLK
CLOK
SENS

XTALI

XTALO

MD2

GFS
FOK

92
95

34

6
7

24

73
11
13
14
17
15
16
22
32

86

87

SW4

(LIMIT)

SW1

(DISC IN)

SW3

(LOAD IN)

SW2

(SELF)

RFDC

FE

TE

SE

FFDR
FRDR

TFDR
TRDR

SFDR
SRDR

MDP

EFM
DEM

SERVO

CTL

61

54

50

52

51

42
43

40
41

38
39

35

D/A

I/F

DIGITAL

CLV

D/A

CONV.

SUB

CODE

PROCESS

X2

16MHz

CD L

R-CH

TUNER

A

SECTION

CD SYSTEM CONTROL

LOCK

46

SI2

49

SCK2

48

SCOR

64

MD2

71

CD RST

21

CD DATA

67

CD XLAT

68

SCLK

45

CD CKO

65

SENS

57

GFS

55

FOK

54

SSTP

11

D SW

10

IN SW

64

SELF SW

63

(Page 22)

IC5

A MUT

OPEN

BUS CLK

BUS SI
BUS SO
BUS ON

RESET

BU IN

X IN

X OUT

19

51
52
53
61
30
60

31

32

6

(KEY BOARD)

X1

10MHz

ATT

SW503

(RESET)

TUNER

B

SECTION

(Page 22)

SYSTEM CONTROL

IC501 (1/3)

ATT

58

DOOR SW

12

UNI CKI

20

UNI CKO

19

UNI SO

18

UNI SI

17

BUS ON

3

SYS RST

11

BU IN

77

RSTX

90

HSTX

86

IC652

1 3

RESET

BATT (H)

CHECK

Q701

BATT (L)

CHECK

Q702,703

BU 5V

BATT

BATT

M903

LOADING

MOTOR

04

LOADING

5

MOTOR

4

DRIVE

MUTE 1
MUTE 2

1
2

34
35

POWER

CONT

CD 5V

CD 6V

5V REG

Q364

Q365

6V REG

Q362

11V REG

Q361

POWER

CONT
Q363

BATT

69
66
40
70
20
22
23

18

17

LM EJ
LM LOD
SLED –
DRIVE ON
LD ON
HOLD
AGC CONT

CD ON

CDM ON

• Signal path
:CD

21 21

CDX-3900R/4000R/4000RX

3-3. BLOCK DIAGRAM — TUNER SECTION —

CNJ151

AUDIO OUT REAR

–1L–2

R

J1

(ANTENNA)

04

TUNER UNIT

TU1

ANTFM MPX

2 10

AM DET

ANTAM

1

IF AM

S-METER

I2C SDA
I2C SCL

RDS DET

FM AGC
E2PROM SDA
E2PROM SCL

ELECTRONIC VOLUME

IC151

Q171

MUTE

ATT

BATT

R-CH

B

CD

SECTION

(Page 21)

ACC

CHECK

Q661

POWER SUPPLY

7 6

VCC AMP +B

2

8.7V ON

3

5.6V ON

4

STB

IC671

COM 8V
TU 5.6V
TU 8.7V

A

CD

X51

CDL

Q121

MUTE

RDS DECODER

IC51

8

Q111
MUTE

IC90

NOISE

DET

NOISE ON

9

MULTI

PATH

RDS/RDBS

DEM/DEC

4 5

SECTION

Q90

10

DET

MUTE
CONT
Q131

4.332MHz

(Page 21)

8

19

BUFFER

Q1

5 1

14
12
13

SDA SCA

LV IN

20 2

9

4
17
18

MPX

16

OSCO OSCI

SEL

1

MPX

13

AM

11

AM IF

12

LEVEL

14

MPIN

15

SDA

20

SCL

21

SM

18

SYSTEM CONTROL

VOL ATT

57

TUN ATT

56

QUALITY

50

NS MASK

32

VSM

53

I2C SIO

70

I2C CKO

71

MPTH

52

DAVN

64

FM AGC

51

E2P SIO

9

E2P CKO

10

IC501 (2/3)

AMP MUTE

OUT LF

OUT LR

BEEP

AMP ON

TEL ATT

ACC IN

TEST IN

TU ON

PW ON

30

29

16
59
60
79

82

81

120

Q181

MUTE

MUTE
CONT

Q621, 622

1

POWER AMP

IC611

12

11

AUX IN

16

STAND BY

4

MUTE

22

TEL

ATT

Q571

8

ANT +B

5

BU +B BU 5V

9
10
11

COM 8V
TU 5.6V
TU 8.7V

5
3

9
8

R-CH

BATT

F901

• Signal path
:FM

:MW
:CD

CN601

1

FL+

9

FL–

2

RL+

10

RL–

4

FR+

12

FR–

3

RR+

11

RR–

16

BATT

13

ATT

7

ACC

15

TEST

5

AMP R

6

ANT R

4000R/4000RX

2222

t

CDX-3900R/4000R/4000RX

3-4. BLOCK DIAGRAM — DISPLAY SECTION —

SYSTEM CONTROL

04

KEY MATRIX
LSW901-917

S901-904

LSW801

J501

(REMOTE IN)

ACTIVE

ACTIVE

ROTARY

ENCODER

RE901

SW504

(NOSE DET)

KEY

Q651

KEY

Q652

KEY ACT

X502

32.768kHz

KEY IN0 DATA

46 13

KEY IN1

KEY ACK

76

AD ON

35

RC IN1

85

RC IN0

48

RE IN0

36

RE IN1

37

NOSE SW

67

XOA

73

XIA

74

IC501 (3/3)

DOOR IND

LCD SO

LCD CKO

LCD CE

ILL ON

3-5. CIRCUIT BOARDS LOCATION

LCD DRIVE

IC901

64
14
1547

29

7

XO

92

XI

93

63

62

DOOR IND

DRIVE

Q551

POWER

CONT
Q633

BATT

X501

3.68MHz

CL
CE

GREEN

2

AMBER

1

3900R/
4000R

LED801-803 LED910-915 LSW901-907,909-917

+10V REG

Q631

ILL +B

LCD901

AMBER

DRIVE

Q901

LED901-904

GREEN
DRIVE

Q902

SUB (CD) board

LOAD SW board

DISC IN SW board

KEY board

SUB board

LIMIT SW board

tuner uni
(TU1)

MAIN board

SERVO board

23 23

CDX-3900R/4000R/4000RX

3-7. SCHEMATIC DIAGRAM — CD MECHANISM SECTION (1/2) — • Refer to page 37 for IC Block Diagrams.

(Page 27)

• Waveforms (MODE:PLAY)

1

0V

Approx. 200mVp-p

qd

(TE)

IC1

2

0V

Approx. 620mVp-p

qf

(FE)

IC1

3

1.2Vp-p

qh

(RFO)

IC1

(Page 31)

Note:

• Voltage and waveforms are dc
with respect to ground
under no-signal conditions.
no mark : CD PLAY

(Page 27)

2626