Kenwood CX-401-W, CX-401-WCVH-2 Service manual

©

2000-9 PRINTED IN JAPAN

B51-7680-00 (N)33

CD RECEIVER

CX-401W/WCVH2

SERVICE MANUAL

SEEK/TUNE

CLK

SCN

PUSH

ON/MUTE

OFF

VOL

6

R

54

M

3

H

2

B.SB NR

1

PUSH

CALL UP

ASL/TRICK

TUNERDISC

SEL

MULTI CONTROL CD TUNER/ANTI-THEFT

Panel assy (A64-2055-43)

Screw set (N99-1673-05)

Knob (VOL, SEEK) (K23-1049-13)

HONDA GENUINE ACCESSORIES

MODEL PARTS No. DESTINATION CX-401WCVH2 08A50-S5A-700 Australia, New Zealand CX-401W 08A02-4C5-100 Australia, New Zealand

DC cord for servicing E30-4499-15

CX-401W/WCVH2

2

MICROCOMPUTER'S TERMINAL DESCRIPTION

System Microcomputer 703035AYGC-J01 (X14- : IC11) Terminal description

Pin No.

Pin Name I/O Description Processing Operation

1 NC O Not used 2 CD CLK O CD clock 3 NC O Not used 4 EV DATA O E-VOL data Input select 1:AM/ 2:FM/ 3:CD/ 4:BUS 5 EV CLK O E-VOL clock 6 VDD - 5V potential 7 VSS - GND 8 CD MOTOR O CD SW for motor driver Motor ON: "H" / Motor OFF: "L"

9 CD STOP O CD stop Stop: "L" 10 CD RST O CD reset Reset: "L" 11 CD SW3 I CD SW3 detection SW ON: "H" / SW OFF: "H" 12 LCD DI I LCD driver data input 13 LCD DO O LCD driver data output 14 LCD CLK O LCD driver clock 15 BEEP O Beep output 16 CD SW2 I CD SW2 detection SW ON: "L" / SW OFF "H" 17 CD SW1 I CD SW1 detection SW ON: "L" / SW OFF "H" 18 IC/Vpp - Writing voltage 19 CD LO/EJ O CD loading/Eject control Eject: "L" / loading: "H" 20 CD MUTE I CD mute Mute ON: "L" / Mute OFF: "H" 21 NC O Not used 22 NC O Not used 23 BUS DI I IEBUS data input 24 BUS DO O IEBUS data output 25 SVR O For SVR discharge SVR discharge: "H" 26 P ANT O Power antenna control Tuner ON: "H" / others: "L" 27 NC O Not used 28 P STBY O Power AMP stanby control Power IC ON: "H" / Power IC OFF: "L" 29 P MUTE O Power AMP mute control Mute ON: "L" / Mute OFF: "H" 30 SYS ON O System control ACC ON: "H" / ACC OFF: "L" 31 RESET I System reset input Reset: "L" 32 XT1 I

Sub system clock connection terminal

32.768kHz

33 XT2 -

Sub system clock connection terminal

32.768kHz 34 REGC I Regulator connection terminal 35 X2 -

Main system clock connection terminal

6.29MHz 36 X1 I

Main system clock connection terminal

6.29MHz 37 VSS - GND 38 VDD - 5V potential 39 NC O Not used 40 PON D O Power ON (Digital) ACC ON: "H" / ACC OFF: "L" 41 PON A O Power ON (Analog)

ACC ON, Power ON : "H" / ACC OFF: "L" 42 NC O Not used 43 NC O Not used 44 NC O Not used 45 NC O Not used 46 NC O Not used 47 ILL IN I Key illumination input Illum ON: "L" / Illum OFF: "H" 48 LAMP ON O LCD back light control

ACC ON, Power ON : "H" / others: "L" 49 SRV O CD servo power conrol CD ON: "H" / CD OFF: "L" 50 NC O Not used 51 NC O Not used

CX-401W/WCVH2

5

Pin No.

Pin Name I/O Description Processing Operation

52 TYPE 1 I Destination setting

First clock display used : "L" / not used :

"H"

53 NC O Not used 54 LED IND O LED indicator control 55 VDD - 5V potential 56 VSS - GND 57 NC O Not used 58 NC O Not used 59 NC O Not used 60 NC O Not used 61 NC O Not used 62 NC O Not used 63 NC O Not used 64 NC O Not used 65 NC O Not used 66 NC O Not used 67 NC O Not used 68 LCD CE O LCD driver chip enable 69 NC O Not used 70 REF CON O A/D port standard voltage output ACC ON : "H" / others: "L" 71 AVDD - 5V potential 72 AVSS - GND 73 AVREF I A/D port standard voltage input REF CON connection 74 NC I Not used 75 EJECT I Eject key detection 76 NC I Not used 77 NC I Not used 78 NC I Not used 79 NC I Not used 80 ST I Stereo station ST: "L" / MONO: "H" 81 S METER I S meter 82 SD I SD Station detected: "H" / Not detected 83 H MUTE I Handie mute Mute ON: "L" / Mute OFF: "H"

84 HANDLE I Handie remote control

Voltage input terminal that changes

by

the handle remote control keys. 85 HP I Temperature detection 86 NC O Not used 87 ENC UP I Encoder Up 88 ENC DOWN I Encoder Down 89 MUTE O Mute Mtue ON: "L" / Mute OFF: "H" 90 BU DET I BU detection BU ON: "L" / BU OFF: "H" 91 ACC DET I ACC detection ACC ON: "L" / ACC OFF: "H" 92 EV CE O E-VOL chip enable 93 PLL CE O PLL chip enable 94 EPR DATA O EEPROM data For code security 95 NC O Not used 96 EPR CLK O EEPROM clock For code security 97 NC O Not used 98 PLL DO O PLL data

CX-401W/WCVH2

6

ADJUSTMENT

F

/

E

RESET

(X14 A/2)

RESET LAND

CHASSIS

Left side view

insert a flat-blade screwdriver tip into the reset hole on the left side panel of the set to short-circuit between the reset land on the PC board(X14-,A/2) with the chassis(GND).

HOW TO RESET THE SET

A B C D E F G H I J

1

2

3

4

5

6

7

78

PC BOARD (COMPONENT SIDE VIEW)

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

C117

R911

R109

R4

R5

R3

R1

R2

R7

R8

R9

R6

R10

C3

C4

C2

R11

PL7

PL5

PL6

PL9

PL8

C1

13

1

14

2

R405

R403

R404

R413

R402

R400

R182

R201

R412

R206

R207

R131

R219

R130

R129

R125

R218

R215

R124

R128

R137

R135

C406

C407

R153

R162

R111

R110

C403

R115

R114

R113

R414

R99

C413

C411

C402

C401

R611

R613

R100

R134

R612

R907

R136

R602

R923

R600

R603

C923

C902

R604

C921

C916

C930

C109

C937

C931

C936

C935

C101

C201

C934

C108

C200

C100

R421

R425

C409

R415

R419

R420

C414

C105

C209

R459

R908

R460

C205

C524

C509

C511

R463

R464

C602

R462

R504

R505

R418

R507

C505

R506

R461

R466

R465

R909

R912

C928

R424

R426

R427

C211

C115

C116

C929

SDG

BE

EB

E

B

BE

EB

BE

EB

BE

1

16

33

48

49

64

17

32

IC1

D402

D401

D501

D503

D502

D209

Q400

Q905

Q906

Q208

Q200

Q201

Q101

Q607

Q213

Q603

Q902

Q903

Q100

Q907

D1

S5

S6

S4

S2

S3

S10

S11

S9

S7

S8

S1

D602

CN71

ED1

IC10

Q205

Q103

Q203

Q605

Q602

IC40

Q601

Q503

Q502

Q504

Q505

IC50

IC21

Q102

IC51

IC11

IC12

IC41

Q604

Q204

D210

D403

D911

D204

D203

D213

Q403

Q404

Q904

D903

D202

D201

D200

D604

D603

D102

D103

Q600

D205

D101

D100

D207 D208

D212

D904

D214

D211

J1

A1

CN74

Q207

Q202

X14-6350-20 A/2 (J74-1074-12)

J901

IC91

D902

J902

IC20

Q212

Q217

S14

S13

X14 B/2

W103

W102

W101

C212

W100

C118

R181

R145

R920

R407

R408

R411

R409

R410

R217

R173

R174

R172

R169

R171

R175

R180

R178

R176

R177

R121

R119

R216

R122

R143

R150

R149

R144

R118

R117

R157

R158

R160

R152

R154

R161

R166

R167

R168

R164

R165

R108

R141

R151

C438

C437

R107

R608

C408

C439

R607

R138

R431

R132

R510

R910

C440

R511

C471

R155

R163

R601

C442

C441

R606

R913

C114

C113

C933

C932

R433

R434

C107

R458

C102

R509

C207

C512

R446

R447

TH1

C106

R508

L402

C938

R503

C513

R502

R500

R501

C601

R127

C525

C526

R614

R609

R610

C421

C422

X100

C423

C425

C426

C427

R140

C429

C110

C430

C433

R416

R417

R422

R423

C428

R435

R436

1

8V

5V

33

1

CBEECB

2

1

CE

RST

1

LAMP +B

ILL +B

SRV

1

R921

R922

R102

R924

R103

R925

R205

R202

R204

R213

R212

R101

R104

R105

C518

C519

X400

C903

C904

C914

C922

C405

C400

C906

C510

L401

C404

C515

C915

C516

C500

C504

C905

C913

C530

C600

C527

C501 C503 C502

C517

C528

C523

X101

C206

C103

F901

C470

C412

C435

C112

C436

C529

C410

C472

C473

C474

C475

C508

C208

C521

C522

C111

C431

C432

C434

W11

C203

C506

C202

C210

C204

R605

C912

R214

W10

W2

W6

W4

W5

W3

W9

W1

W7

W8

5

4

135

23

TUNER

EJECT

DISC

ASL/TRICK

SEL

1

PL10

1

PL1

PL2

L403

L404

C901

L901

B

C104

6

BE

B

E

B

E

BE

B

E

BE

224

25

2

19

20

EB

268

71113

14

5

BE

EB

124

POWER

UP

DOWN

CALL UP

113

14

10

20 11

23

11 1

34

44

22

12

8

916

100

25

75

51

76

50

26

4

5

8

916

4

85

2

34

E

EBE

EB

BE

EB

IC Q

15I 10 6C 11 5F 12 4F 20 7D 21 6F 40 2D 41 2F 50 5D 51 3E 91 3B

100 5F 101 4F 102 5F 103 5G 200 3G 201 3F 202 3F 203 4G 204 3G 205 6F 207 3F 208 3F 212 7E 213 7E 217 7F 400 2D 403 2E 404 2E 502 4D 503 4D 504 3D 505 3D 600 6E 601 6D 602 6E 603 5E 604 6E 605 5E 607 6E 902 6C 903 5D 904 4D 905 5C 906 4D 907 2C

X14-6350-20

Kenwood CX-401-W, CX-401-WCVH-2 Service manual

CONTENTS

MICROCOMPUTER'S TERMINAL DESCRIPTION

ADJUSTMENT