Sony CDX-CA680X, CDX-L580X Service Manual

CDX-CA680X/L580X

SERVICE MANUAL

Ver 1.0 2002. 11

Photo: CDX-CA680X

• The tuner and CD sections have no adjustments.

SPECIFICATIONS

AEP Model

UK Model

Model Name Using Similar Mechanism CDX-L380X
CD Drive Mechanism Type MG-393XA-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 9 dBf
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 67 dB (stereo),

69 dB (mono)

Harmonic distortion at 1 kHz

0.5% (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 (front)

(CDX-CA680X only)
Audio outputs (rear)
Power aerial relay control
terminal
Power amplifier control
terminal

Inputs Telephone ATT control

terminal
Remote controller input
terminal
BUS control input terminal
(CDX-CA680X only)
BUS audio input terminal
(CDX-CA680X only)

Tone controls Low ±10 dB at 60 Hz

(XPLOD)
Mid ±10 dB at 1 kHz
(XPLOD)
High ±10 dB at 10 kHz
(XPLOD)

Power requirements 12 V DC car battery

(negative ground)

Dimensions Approx. 178 × 50 × 180 mm

(w/h/d)

Mounting dimension Approx. 182 × 53 × 161 mm

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

connections

Front panel case (1)

Design and specifications are subject to change without
notice.

9-874-248-01

2002K0400-1
© 2002. 11

FM/MW/LW COMPACT DISC PLAYER

Sony Corporation

e Vehicle Company
Published by Sony Engineering Corporation

1

3-2. BLOCK DIAGRAM — CD SECTION —

OPTICAL PICK-UP

(KSS-720A)

RF AMP,DIGITAL SERVO,

DIGITAL SIGNAL PROCESSOR

IC1

CDX-CA680X/L580X

PD

LD

A

C

B

D

E

F

FOCUS

COIL

I-V

CONV.

LD

DRIVE

Q1

A

84

C

85

B

82

D

83

E

87

F

86

PD

97

LD

98

FOCUS/TRACKING COIL DRIVE,

SLED/SPINDLE/LOADING MOTOR DRIVE

FSC

16

FSC

15

TRACKING

ERROR

LD AMP

IC2

+

FOCUS

COIL

­DRIVE

FD

26

FORCUS

ERROR

RF
EQ

EFM

DEMOD

SERVO

CTL

FDTDSD

62 63 64 65

MD

D/A

CONV

DSUB CODE

PROCESS

I/F

OSC

23 24

X1

16.9344MHz

LOUT
ROUT

PACK
TSTB

SCK

STB

RST

RFOK

(Page 16)

TUNER

16
12

52
56

SI

8

SO

7

6

5

AO

4

3

2

SW1

(DISC IN)

CDL
CDR

SECTION

A

SYSTEM CONTROL

CD PACK

31

TSTB

51

21

CD_TSO

22

CD_TSI

23

CD_TCKO

55

STB

54

AO

53

CD_RST

52

RFOK

60

INSW

IC501 (1/3)

TRACKING

COIL

M902

(SLED)

M901

(SPINDLE)

M903

(LOADING)

17

18

+-

M

13

14

+-

M

11

12

+-

M

9

10

TRK

TRK

SL-

SL+

SP-

SP+

LD-

LD+

+

-

TRACKING

COIL

DRIVE

SLED

MOTOR

DRIVE

SPINDLE

MOTOR

DRIVE

LOADING

MOTOR

DRIVE

MD

LOAD

EJECT

50

SW2

TD

23

SD

5

6

1

2

A5V

AU5V

D5V

DR6V

SERVO 5V

MECH6V

(SELF)

SW3

(LIMIT)

SW5

(DOWN)

CD_SELFSW

LIMIT

57

59

D_SW

CD_L_ LO

62

63

CD_LM_EJ

RESET

IC602

33

1

S702

RESET

RESET

B.UP+B

3

Signal path

: CD

15 15

CDX-CA680X/L580X

3-3. BLOCK DIAGRAM — TUNER SECTION —

J1

(ANTENNA)

TUNER UNIT

ANT

1

MUTE-CONDITION

TU1

S-METER

TU-SDA
TU-SCL

E2P-SDA
E2P-SCL

QUALITY

TU-MUTE

TU-VDD

VCC(8.3V)

L-CH

R-CH

RDS

4

3

6
14
13

9

17
16

5

8

7

11

10

R-CH

X51

4.332MHz

Q22

(Page 15)

RDS DEMODULATOR

MPX

16

OSCO

4

OSCI

5

IC51

VDD

A

CD

SECTION

SDA

SCL

DAVN

+5V REG.

Q1

CDL

CDR R-CH

9

10

8

AUDIO 8.3V

BUS-LCH

5

CD-LCH

9

TV-LCH

7

SDA

27

SCL

26

25

SYSTEM CONTROL

VOLATT

70

VSM

2

I2C_SIO

45
47

I2C_CKO

DAVN

27

87

E2P_SIO
E2P_CKO

86

QUALITY

3

85

NS-MASK

88

TU-ATT

30

TU-ATTIN

MUTE

IC501 (2/3)

I2C

BUS

STB

BEEP

TELATT

ACCIN

TESTIN

ATT

DIAG

SYSRST

BUSON

UNISI

UNICKO

UNISO

BU IN

SOUND CONTROL

ELECTRONIC VOLUME

IC401

INPUT SELECTOR

CONT.

69
35

40

38

37

67

68

24
25
43
44
42
28

BATT

CA680X

EVR

13
12

8

9
11
13

EFFECT

TONE

BUS INTERFACE

B/U-C

BUSON
DATA IN

DATA OUT
CLK IN

B/U-C

BACK-UP CHECK/

LOW VOLTAGE

LINE MUTE

CONTROL
Q478,479

IC580

CHECK

Q581,582

BUSON

DATA I/O

CLK

CLK

CLK

VCC

OUT

OUT

-RL

1
6
4

2

3

J330

L

-3

CN601

19

17

18

-4

-1

-2

-1

-2

1
9

2

10

4

12

3

11

13

7

15

5

6

8

16

R

L

R

L

R

FL+
FL-

RL+
RL-

FR+
FR-

RR+
RR-

ATT

ACC

TEST

ANP-R

ANT-R

GND

+B(BATT)

R-CH

R-CH

22

AUDIO 8.3V

POWER AMP

IC750 (1/2)

-FL
19

MUTE

Q441

18

MUTE

Q461

CN580

BUS

CONTROL IN

8

6

3

5

2

4

1

7

BATT

OVER VOLTAGE

DET.

Q580,D580,581

BATT

12

11

STB

22

BEEP

16

SDA

2

SCL

4

ACC

DETECT

Q631

MULTIPLE VOLTAGE

REGULATOR

IC750 (2/2)

AMP-REM

ANT-REM

DIAG

25

PANEL+B

MECH 6V

SERVO 5V

AUDIO 8.3V

MUTE

MUTE

CONT.

I2C

BUS

B.UP+B

29

27

37
34
33
31
30
35

VP

VP2
VP1

TEL
ATT

Q651

5
3

9
7

6

20

D759

D760

B.UP+B
PANEL+B
MECH 6V
SERVO 5V
AUDIO 8.3V

BATT

R-CH

R-CH

F901

10A

• Signal path

: FM

CA680X

BUS AUDIO IN

AUDIO OUT REAR

CA680X

AUDIO OUT FRONT

: CD

• R-ch is omitted due to same as L-ch.

L580X

1616

CDX-CA680X/L580X

t

3-4. BLOCK DIAGRAM — DISPLAY SECTION —

SYSTEM CONTROL

KEYIN0

5

KEYIN1

4

KEY ACK

26

AD_ON

91

RCIN1

98

RCIN0

6

SIRCS

29

NOSE-SW

34

DOOR-IND

75

XIN

15

XOUT

16

IC501 (3/3)

LCDSO

LCDCKO

LCDCE

OSCOUT

OSCIN

KEY MATRIX

LSW901,904-910,

912-922

S902,903,911

J561

(REMOTE IN)

(DOOR INDICATOR)

LED801

LED802

Z

S801

Z

D502

D501

REMOTE
RECEIVE

S501

(NOSE DET)

LED

DRIVER

Q701

KEY

ACTIVE

Q664

IC971

X502

32.768kHz

2

3-5. CIRCUIT BOARDS LOCATION

LCD DRIVER

IC901

DATA

18
20
19

12

13

DI

78

CLK

CL

77

CE

CE

76

X501

18.432MHz

SEG1

|

SEG64

COM1

|

COM4

PANEL+B

PANEL+B

1

|

64

LCD

LCD901

65

|

68

LED933,934

(LCD BACK LIGHT)

LSW901,904-910,
912-922
LED903,911,933,934,
951-954

KEY

()

ILLUMINATION

DISC IN board

KEY board

• Waveforms
— Servo Board —

(MODE: CD PLAY)

1

SERVO board

SUB (CD) board

LIMIT board

tuner uni
(TU1)

MAIN board

SUB board

— Main Board —

1

2

3

4

5

16.9344MHz

IC1

IC1

(XTAL)

wd

3.4msec

(PACK)

ts

uj

oa

(RFO)

(FEO)

IC1

Approx. 620mVp-p

IC1

2.4Vp-p

4.8Vp-p

1.8Vp-p

0V

0V

4.332MHz

IC51

(OSCO)

4

2

18.432MHz

IC501 qs (OSCOUT)

3

32.768kHz

IC501

(XOUT)

qh

4.5Vp-p

2.3Vp-p

5Vp-p

Approx. 200mVp-p

od

(TEO)

IC1

17 17

CDX-CA680X/L580X

3-7. SCHEMATIC DIAGRAM — CD MECHANISM SECTION — • Refer to page 17 for Waveforms and page 18 for Common Note on Schematic Diagram.

SW3

CN2

TP77
TP78

C1

TP81
TP82
TP83
TP84

C5

R29
R30

TP79
TP80

C43

• Refer to page 27 for IC Block Diagrams.

Q1

C3

TP9 TP8

R26

R3

C4

C6

C14

TP10

C13

C11

R5

TP7

TP12

TP11

C15

C10

C9

TP89

C18

C19

C20 C23

R9

C24

TP24

TP25

TP22

TP23

R8

TP88

IC1

C35

TP45
TP44
TP43
TP42
TP41

TP40
TP39
TP38
TP37

TP46

TP36

C38

M902

M901

SW1

SW2

CN1

TP5
TP2

TP3

CN3

M903

SW5

TP1
TP4

TP85

TP92

TP87

TP86

C8

TP35
TP34

C16C70

IC B/D

C17

C41

C27

C26

R12

C30

R10

TP31

TP30

R15

TP90

TP91
TP27
TP29
TP26
TP28

R7

TP14

BP3

BP4

TP18

TP17
TP20
TP16
TP19

TP21

C22

IC2

TP15

R6

BP1

C29

R14

C34

C71

TP33

TP32

C25

X1

BP2

C36

C44

R31

FB5

TP6

R22

R21

R18

R19

R20

R17

TP66

TP61
TP76
TP60
TP75
TP59
TP74
TP58

TP73
TP57
TP72
TP56
TP71
TP55
TP70
TP54
TP69
TP53
TP68
TP52

TP51

TP50
TP64
TP49

TP48
TP63
TP47
TP62

CN1

(Page 23)

IC B/D

Note:

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

2020

CDX-CA680X/L580X

3-9. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — • Refer to page 17 for Waveforms and page 18 for Common Note on Schematic Diagram.

• Refer to page 27 for IC Block Diagrams.

TU1

R332

R333

R330
R331

C330
C331

C332

C333

J330

JC29

R29

Q22

J1

C3

C2

C1

C4

JC1

R1

C6

Q1

D1

JC59C5

C61

C62

R2

R3

L1

C59

R60

C58

C7

C51

C64

JW95

C11

JW97

C421

C420

C401

C402

C403

C404

C405

C406

C407

C409

JC409

JC406

JC407

R402 R401

C408

IC B/D

IC51

C56

R54

X51

C54

R57

C57

C55

R56

R62

R61

IC B/D

IC401

C410

R403

R405

R406

R407

R408

R409

R404

C413

C412

C411

C431

C451

C441

C461

R431

C334

R451

R441

JC431

R432

Q431

R452

Q451

JC441

R442

Q441

R462

Q461

R461 R463

Q479

Q478

JC479

C479

C480

JC444

D479

D480

JC755

R480

R479

C462

R453

R433

R443

C432

C452

C442

C751

IC B/D

JC631

JC609

JC753

C753

JC754

C756

R756

Q631

C765 C764

R752

JC651

R633

C631

R634

C754

C755

Q651

JC756

R632

IC750

C757

C758

C759

C760

C761

R636

R653 R651

R654

R631

D651

D759

D760

D751

D752

D761

D762

D753

D754

D755

D756

D757

D758

R652

R609

D609

C602

C617

C618

D601

C601

CN330

C335

CN601

F901

L601

Note:

•Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
(): MW
<>: CD PLAY

: Impossible to measure

∗

(Page 23)

2222

3-10. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) — • Refer to page 18 for Common Note on Schematic Diagram and page 27 for IC Block Diagrams.

(Page 22)

JC401

L502

C301

C343

L301

(Page 26)

C305

L304

L303
L305

C302

L302

CN702

(Page 20)

CNP301

R720

Q701

R701

R702

R703

R704

JC580 JC581 JC582

JC533

L307

C303

L306

JC303

JC701

R531

R534

R530

R528

R525

JC530

R523

R524

R526

R527

JC532

R999

JC21

JC88

R521

R522

R536

R535

R520

IC501

R532

R519

R539

R538

JC53

R518

R533

S501

R540 R541

R516

R515
R512

R511
R510

X502

X501

R509

C501

C509

C503

D502

R508

C504

R503
R502

R501

C508

C507

C506

C505

R517

R513 R514

D501

CDX-CA680X/L580X

C623

S702

L501

R504R505

Q664

R584

R585

Q582

JC584

C621

C580

IC B/D

Q581

IC602

IC580

Q580

D580

D581

C622

R582

R583

TH580

C581

D582
D583

R580R581

CN580

C582

D720

D719

D715

D704

D712

D716

D717

D718

D710

D711

23 23

R673

R672

R671

R674

J561

Note:

•Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
(): MW
<>: CD PLAY

: Impossible to measure

∗

CDX-CA680X/L580X

3-13. SCHEMATIC DIAGRAM — KEY SECTION — • Refer to page 18 for Common Note on Schematic Diagram.

LED933

LED934

R927

R928

R929

LSW912(2/2)

LED911

LED951

R930

R931

R934

LSW913(2/2)

LED952

LSW914(2/2)

LSW901(2/2)

R935

R936

LSW915(2/2)

LSW916(2/2)

LSW917(2/2)

LSW918(2/2)

R941

R942

LSW919(2/2)

LSW920(2/2)

LSW921(2/2)

LSW922(2/2)

R946

R947

LSW905(2/2)

LSW906(2/2)

LSW909(2/2)

LSW910(2/2)

R950

R951

LED954

R960

R961

R962 R967

LSW908(2/2)

LED903

LED953

LSW904(2/2)

LSW907(2/2)

R981 R982 R983

R966

R970

R990

C986

C971

R989

D983

C981

C985

IC971

D981

R985

C982

R972

C983

C984

R979

R980
R978

R986

R987
R988

IC901

(Page 23)

CN801

S801

LED801

LED802

CN802 CN901

D902

R975

R976
R977

R971

D901

R911 R912 R913

LSW912(1/2)

S911

R901 R902 R903

LSW901(1/2)

LSW913(1/2)

S902 S903

LSW914(1/2)

LSW915(1/2)

R904 R905 R906

LSW904(1/2)

LSW905(1/2)

LSW916(1/2)

LSW906(1/2)

LSW917(1/2)

LSW907(1/2)

R917 R918 R920R919R916R915R914

LSW918(1/2)

LSW908(1/2)

LCD901

LSW919(1/2)

R909 R910R907 R908

LSW909(1/2)

LSW920(1/2)

LSW910(1/2)

LSW921(1/2)

R921

LSW922(1/2)

Note:

•Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM

2626