Kenwood CX-402-A, CX-402-ACRH-2, CX-402-R, CX-402-W, CX-402-WACH-2 Service manual

CD RECEIVER

CX-402A

SERVICE MANUAL

CX-402ACRH2 CX-402R/402W CX-402WACH2 CX-402WCVH2

CLOCK

MODE

MULTI CONTOROL CD TUNER/ANTI THEFT

ANTI THEFT

VOL

AM

FM

AUX

CD

PUSH POWER

PUSH A.SEL

TUNE/SKIP

RMH

RDM

3

RPT

4

2

1

MUTE

UPDISCDOWN

6

5

CX-402A/402R/402W (M)

HONDA GENUINE

CX-402WCVH2 Destination Australia

SCREW SET (N99-1621-15) *Except CX-402ACRH2/402WCVH2

14pin BUS-CN

J900

J901

20pin POWER SUPPLY-CN

POWER AMP

IC90

BU DET

ACC DET

P-ANT

H-REMOTE

H-MUTE

IC52

E-VOL

IC21 RST

BUS

IC30

SYS ACC

B.U. 5V

A 8V

IC20

PROTECTION

THERMAL

PON 5V

ILL DET

KEY-ILLUMI +B

LCD

EEP ROM

IC10

LED

DRIVER

SYSTEM u-COM

IC11

(CX-402 only)

SRV 8V

IC20

AM

IC41

TUNER PACK

A400

PLL

IC40

AM+B

FM+B

LPF

ANT

J400

KEY ILLMI

LCD BACK LIGHT

LED IND

LCD DRIVER

KEY MATRIX VOL

LCD

(F/E,IF,NC,MPX)

INTER FACE

+B

BACK LIGHT

NOISE

CANCELER

ILL

BUS+

BUS-

SYS

Rch-

Rch+

Lch+

Lch-

ACC

P-ANT

H-MUTE

H-REMO

RL-

RR+

RR-

RL+

FR-

FR+

FL+

FL-

B.U.

ILL

FL IN

RL IN

RR IN

FR IN

MUTE

STBY

FL-

FL+

FR+

FR-

RL-

RL+

RR+

RR-

BEEP

B.U. 13.2V

BUS

CDFMAM

B.U. 5V

SYS ON BUS DO BUS DI

PON A

PON D

ILL DET

KEY ILL

LCD BL

LED IND

RESET

H.P

H MUTE

HANDLE

P ANT

ACC DET

BU DET

DI

CE

CL

B.U. 5V

B.U. 13.2V

DI

CLKCEDO

X100

32.678kHz

X101

6.29MHz

ENC UP

ENC DOWN

ACC

A 8V

SDA

SCL

B.U. 5V

CE

CLK

DATA

B.U. 13.2V

PON 5V

A 5V

A 8V

FM+B

AM+B

FM OSC AM OSC AGC

VT

FM ANT AM ANT

AM AF

AM IF

FM L

FM R

FM S-METER

AM S-METER

FM SD

ST IND

AM SD

AM+B

B.U. 5V PON 5V

SW2

SW3

SW1

LO/EJ

MOTOR

M STOP

MUTE L

MUTE R

M RST

CLK

MECHA

DATA

Lch

Rch

B.U. 5V

A 8V

SRV 8V

B.U. 5V

DI

CLK

CE

DO

KS3 KS4 KS5 KS6

KI1

KS2

KS4

KI3

X2

X1

XT2

XT1

SYNTHESIZER UNIT (X14- ) (A/2)

CD MECHA. (ME1)

SYNTHESIZER UNIT (X14- ) (B/2)

CX-402/420 (M/J) CX-424 (J)

AM FM CD CD(BUS) (VOL.MAX)

: 3300mV

: 500mV : 390mV : 3200mV

360mV

44mV

60mV

350mV

2

CX-402A/402R/402W

BLOCK DIAGRAM

CX-402A/402R/402W

MICROCOMPUTER'S TERMINAL DESCRIPTION

(X14-) IC11 : µ-COM

PORT

No.

10 P MUTE O Power amplifier mute control. "L" : Mute on. "H" : Mute off. 11 - - 12 LCD DI I LCD driver data. 13 LCD DO O LCD driver data. 14 LCD CLK O LCD driver clock. 15 LCD CE O LCD driver chip enable.

16,17 - - -

18 IC/VDD - Writing voltage. 19 H-MUTE I Handle mute. "L" : Mute on. "H" : Mute off. 20 ACC DET I ACC detection. "L" : ACC on. "H" : ACC off. 21 BU DET I Back-up detection. "L" : Back-up on. "H" : Back-up off. 22 - - 23 BUS DI I IE BUS data. 24 BUS DO O IE BUS data. 25 SYS ON O System control. "H" : ACC on. "L" : ACC off. 26 P ANT O Power antenna control. 27 P-ON D O Power-on control (Digital). "L" : ACC on. "H" : ACC off.

28 P-ON A O Power-on control (Analogue).

29,30 - - -

31 RESET - System reset. "L" : Reset. 32 XT1 - Sub system clock. 33 XT2 - Sub system clock. 34 REGC 35 X2 - Main system clock. 36 X1 - Main system clock. 37 GND - GND. 38 VDD - VDD.

39-46 - - -

47 ILL DET I "SMALL" detection. "L" : "SMALL" detection. 48 LCD BL O LCD back light control. "H" : ACC/POWER on. "L" : Other. 49 DIMMER O Dimmer control. "H" : Dimmer on. "L" : Base. 50 KEY ILLUMI O Key illumination control. "H" : Key illumination turns on.

51 LED IND O LED indicator. seconds during ACC off.

52 EJECT I Disc eject key. "L" : Disc eject. "H" : Other. 53 ENC DOWN I Encode down. 54 ENC UP I Encode up. 55 VDD - VDD.

PORT NAME I/O FUNCTION OPERATING CONDITION

1- -2 CD CLK O CD clock. 3- -4 EV DATA O E-volume data. 5 EV CLK O E-volume clock. 6 VDD - VDD. 7 GND - GND.

8 P STBY O Power amplifier stand-by control.

9 BEEP O Beep.

"L" : Power amplifier does not work. "H" : Power amplifier works.

"H" : ACC/POWER/SVR on. "L" : ACC/POWER off.

The indicator turns on and off every 2

The indicator turns on during disc in.

3

CX-402A/402R/402W

MICROCOMPUTER'S TERMINAL DESCRIPTION

(X14-) IC11 : µ-COM

PORT

No.

56 GND - GND.

57-59 - - -

60 CD SW2 I CD SW2. "L" : SW on. "H" : SW off. 61 CD SW1 I CD SW1. "L" : SW on. "H" : SW off. 62 CD MUTE I CD mute. "L" : Mute on. "H" : Mute off. 63 CD RST O CD reset. "L" : Reset. "H" : Other. 64 CD STOP O CD stop. "L" : Stop. "H" : Other. 65 CD LO/EJ I/O CD loading/eject control. "L" : Loading. "H" : Eject. 66 CD MOTOR O CD motor driver SW. "H" : Motor drives. "L" : Motor does not drive. 67 CD SW3 I CD SW3. "H" : SW on. "L" : SW off.

68,69 - - -

70 REF CON O A/D port reference voltage. "H" : ACC on. "L" : Other. 71 AVDD - AVDD. 72 GND - GND. 73 AVREF I A/D port reference voltage. 74 TYPE1 I Destination setting 1. "H" : AUX exists. "L" : AUX does not exist. 75 TYPE2 I Destination setting 2.

76,77 - - -

78 STEREO I Stereo broadcasting station detection.

79 S METER I S-meter.

80 FM SD I FM SD detection.

81 AM SD I AM SD detection.

82 - - 83 HANDLE I handle remote control. 84 HEAT I Heat protection detection. 85 - - -

86 Navigation-L O Navigation L-ch voice signal input SW.

87 MUTE-RE O Rear L/R-ch mute. "L" : Mute on. "H" : Mute off. 88 MUTE-FR O Front R-ch mute. "L" : Mute on. "H" : Mute off. 89 MUTE-FL O Front L-ch mute. "L" : Mute on. "H" : Mute off. 90 TEST I For test mode. "L" : Test mode. "H" : Other.

91 Navigation-R O Navigation R-ch voice signal input SW.

92 EV CE O E-volume chip enable. 93 PLL CE O PLL chip enable. 94 EPR DATA I/O EEPROM data. 95 - - 96 EPR CLK O EEPROM clock. 97 - - 98 PLL DO O PLL data. 99 PLL CLK O PLL clock.

100 CD DATA I/O CD data.

PORT NAME I/O FUNCTION OPERATING CONDITION

"L" : Stereo broadcasting station. "H" : Monaural broadcasting station. S-meter checks level during searching ASL. S-meter reads level during SD is "H". "H" : FM signal exists. "L" : FM signal does not exist. "H" : AM signal exists. "L" : AM signal does not exist.

"H" : Navigation voice signal input. "L" : Other.

4

A BDFHJCEG I

IC41

Q605

Q604

Q104

Q105

Q201

Q206

Q900

IC52

D500

Q207

Q204

IC30

Q504

IC51

IC11

IC21

Q510

Q511

IC10

Q607

D700

D901

D205

D601

D902

Q202

D201

D602

D603

D206

D207

Q205

Q600

Q100

Q402

Q401

D203

D202

D301

D300

D200

D600

S704

S705

S703

S700

S702

S706

S710

S712

S707

S708

S711

S709

S701

X14 B/2

X14-674x-xx A/2 (J74-1236-32)

A400

J400

L400

IC90

IC40

J901

L900

J900

IC20

Q200

CN10

CN11

ED70

SYNTHESIZER UNIT

X100

R425

R556

R557

R558

R559

R158

R177

R159

R178

R173

R172

R174

R167

R166

R175

R160

R176

R164

R165

R162

R163

R125

R133

R132

R117

R118

R116 R114

R115

R119

R123

R124

R122

R121

R150

R148

R152

R156

R157

R154

R139

R137

R145

R179

R539

R533

R523

R524

W100

R519

W101

R526

R900

R902

R903

R608

R555

R404

R412

R413

R205

R206

R207

R180

R181

R214

R208

R209

R510

R516

R518

R513

R421

R422

R423

R424

R426

C526

C527

C524

C525

C523

C425

C426

C422

EJECT

SEL

6

TUNER

DISC

5

PL75

4

3

2

1

CALL

TRICK

ASL/

POWER

C423

C521

C522

C517

C520

C539

C901

C553

C548

C602

C115

C116

C113

R906

C100

C111

C414

C415

C420

C421

C416

C418

C303

R102

R111

R100

R103

R110

R109

R108

R107

R104

C905

R112

C911

C903

C505

C417

R904

R216

R611

C606

W600

5V

1

GND

VDD

ILL+B

RST

B1443

LAMP+B

L404

R300

C919

W14

R210

R901

R204

R203

R603

R301

R610

R602

R302

R601

W1

X400

X101

L403

L402

W2

W3

W4

W13

W11

W9

W5

W10

W6

W7

C511

C512

C510

C509

C513

C514

C207

C206

C424

C500

C501

C300

C419

C502

C503

C546

C545

C549

C544

C541

C540

C542

C550

C601

C556

C902

C915

C918

C101

C916

C917

C529

C530

C531

C528

C105

C106

C519

C536

C537

C103

C518

C538

C904

C412

C406

C401

C203

C516

C200

C201

C402

C202

W8

W12

L401

C557

C405

F900

R213

C925

C926

C608

C927 C928

C607

LM7001JU

C914

C204

RST

24

1

16

9

8

1

2

24

25

1

2

20

19

11

10

12

9

7

8

6

5

4

3

1

2

14

13

2

1

13

14

5

BE

B

E

B

E

B

E

B

E

1

7

8

14

1

16

17

32

33

48

49

64

1

100

1

8

5

4

1

25

26

76

75

51

50

22

1

2

3

4

BEE

E

BE

B

C

B

E B

C

B

E

CEB

1

4

5

8

BE

TH90

B E

B

E

B

E

B

E

B

E

B

E

B

E

1

8

9

16

1

43

PL72

W17

C89

R5

C29

C46

R52

C23

R49

C33

R9

C20

C19

R20

R8

C1

C8

C12

C10

C11

R18

C3

C2

C17

C18

R17

C16

R15

C15

C14

R16C13

R12

R10

C7

C6

R11

C5

R19

R214

R202

C55

R21

C4

CLVS

VDET

TRCRS

BDO

/RFDET

OFT

1

STLD

SMCK

ST-O

FLAG

TOFS

FCLK

DQSY

IPFLAG

1

16

32

17

25 51

75

76100

50

26

14

15

28

B

E

IC1

IC4

D1

S3

S2

Q1

IC2

S1

X32-5010-00 (J74-1158-12)

CD PLAYER UNIT

(X14-674x-xx)

Ref.No IC10 IC11 IC20 IC21 IC30 IC40 IC41 IC51 IC52 Q100

Address 4C 5D 6C 6D 6B 3C 2E 3C 3D

IC90

3A 5C

Ref.No

Q104 Q105 Q200 Q201

Q202 Q204 Q205 Q206 Q207 Q401

Address

5D 4D 6C 6C

6D 6D 5E 5E 5E 2C

Q402

Q504

Q510 Q511 Q600

Q604 Q605 Q607 Q900

2D

4C

4C 3C 4B

4B 4B 6D 3B

(X32-5010-00)

Ref.No IC1 IC2 IC4 Q1

Address 5H 5I 3I 5G

PC BOARD (Component side view)

1

2

3

4

5

6

7

65

Refer to the schematic diagram for the value of resistors and capacitors.

KMOQSLNPRT

G

D

S

BE

D501

Q602

Q601

Q603

Q606

Q103

Q101

Q102

Q300

Q203

D400

D401

Q400

C935

R304

R414

R168

R170

R171

R161

R128

R129

R127

R126

R130

R134

R135

R131

R120

R151

R147

R155

R153

R140

R138

R136

R141

R146

R144

R142

R143

R537

R538

R534

R535

R544

R545

R546

R543

R540

R541

R520

R530

R531

R532

R529

R527

R528

R609

R552

R553

R554

R548

R549

R550

R606

R607

R605

R600

R604

R405

R406

R407

R401

R402

R403

R415

R411

R408

R409

R410

R183

R182

R303 R305

R400

R212

R416

R511

R508

R506

R507

R517

R515

R512

R514

R420

R417

R418

R419

R502

R503

R504

R501

R500

C534

C535

C532

C533

C604

C605

C900

C603

C552

C551

C600

C554

C555

C114

C208

C209

C117

C205

C112

C104

C102

C110

C109

C301

C411

C413

C410

C400

C403

C302

C408

C409

C404

C407

R105

C908

C909

C910

C907

C906

C913

C912

R521

C937

C936

C920

R215

C938

R700

R707

R706

R708

R710

R709

C701

C700

C703

C702

R701

14 2

113

R704

R705

R703

R702

PL74

PL76

PL73

PL70

PL71

R522

R505

R509

W601

1

16

17

32

33

48

49

64

IC70

CN70

X14 B/2

X14-674x-xx A/2 (J74-1236-32)SYNTHESIZER UNIT

/MUTER

D.OUT

R125

RW

LDON

FBAL

R233

RF

GND

ARF

IOP-

IOP+

F

TE

TR

TBAL

TE

FE

+

-

-+

GCTL

A

R234

C

D B

1

Vref

E

R54

R38

R37

C26

C85

R36

R34

R32

R218

C35

C25

C28

C24

LDCNT

X1

R46

R76

R82

R73

EJECT/SLED-

22

FCS+

LD

R3

16

VR

PD

FCS-

Vc

Vcc

F

R6

TRK-

TRK+

CP3

A.+B

S.+B

SW3

Rch

S.GND

1

SLED+

LOAD

+

ECS

+

FOD

R107

R47

B

CP1

E

CP2

BU.5V

C21

SPDL+

SPDL-

A.GND

Lch

TVD

-

+

R75

/MSTOP

/MRST

BE

C45

R83

R72

R71

C43

R81

BBEE

R77

R108

SW1

/CLK

DATA

R104

SW2

D.GND

/RST

C71

R121

R117

5

C72

C68

4

R122

R102

R118

R126

R238

C90

C77

8

C79

C80

1

C78

+

A.5V

LO/EJ

/MUTEL

MOTOR

R78

C41

D4

CN2

CN1

Q4

Q3

Q2

D2

Q5

IC6

D3

D5

X32-5010-00 (J74-1158-12)

CD PLAYER UNIT

(X14-)

Ref.No IC70

Address 5K

(X14-674x-xx)

Ref.No Q101 Q102 Q103 Q203 Q300 Q400 Q601 Q602 Q603 Q606

Address 4N 4N 4N 6M 6P 2O 4O 4O 3O 4O

(X32-5010-00)

Ref.No IC6 Q2 Q3 Q4 Q5

Address 4Q 5R 4R 4R 5Q

PC BOARD(Foil side view

)

1

2

3

4

5

6

7

Refer to the schematic diagram for the value of resistors and capacitors.

7 8