Pioneer KEX-M8406ZT/UC Bedienungsanleitung

ORDER NO.

CRT2528

PUB. NO. CRT2528

AUDIO SYSTEM

HEAD UNIT

Manufactured for TOYOTA

by PIONEER CORPORATION

VEHICLE DESTINATION PRODUCED AFTER TOYOTA PART No. ID No. PIONEER MODEL No.

LEXUS GS430 U.S.A., CANADA August 2000 86120-3A521 P1718 KEX-M8406ZT/UC

LEXUS GS430 U.S.A., CANADA August 2000 86120-3A521 P1718 KEX-M8406ZT-91/UC

LEXUS GS430 U.S.A., CANADA August 2000 86120-3A750 P1723 KEX-M9406ZT/UC

LEXUS GS430 U.S.A., CANADA August 2000 86120-3A750 P1723 KEX-M9406ZT-91/UC

GS430

Service

Manual

KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91

-Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.

"Dolby" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.

-These models do not provide the test mode for CD changers.

-KEX-M8406ZT/UC and KEX-M9406ZT/UC have adopted AVC-LAN.

KEX-M8406ZT/UC

-Supplementary model is identical to the original except for the addition of following items.

Description Part No.

KEX-M8406ZT-91/UC KEX-M9406ZT-91/UC

Polyethylene Bag CEG1026 CEG1026

Carton CHA2025 CHA2025

Contain Box CHL4166 CHL4167

Protector CHP2331 CHP2331

KEX-M9406ZT/UC

ID No.P1718 ID No.P1723

-This service manual should be used together with the following manual(s):

Model Order No. Mech. Module Remarks

CX-631 CRT1640 2L Cassette Mech. Module:Mech.Description

CONTENTS

1. SAFETY INFORMATION ............................................3

2. EXPLODED VIEWS AND PARTS LIST .......................4

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .....8

4. PCB CONNECTION DIAGRAM ................................22

5. ELECTRICAL PARTS LIST ........................................34

6. ADJUSTMENT..........................................................42

7. GENERAL INFORMATION .......................................46

7.1 DIAGNOSIS .......................................................46

7.1.1 DIAGNOSIS MODE .................................46

7.1.2 DISASSEMBLY ........................................50

7.1.3 CONNECTOR FUNCTION DESCRIPTION ..51

7.1.4 TROUBLESHOOTING..............................52

7.2 PARTS................................................................53

7.2.1 IC ..............................................................53

7.2.2 DISPLAY...................................................56

7.3 EXPLANATION..................................................57

7.3.1 SYSTEM BLOCK DIAGRAM ...................57

7.3.2 OPERATIONAL FLOW CHART ................58

8. OPERATIONS AND SPECIFICATIONS.....................59

KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91

1. SAFETY INFORMATION

This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer.

Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair

complex products such as those covered by this manual.

Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.

If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so

and refer the repair to a qualified service technician.

KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91

59 38

30 33

48 46

23 61

11 13

818

2. EXPLODED VIEWS AND PARTS LIST

2.1 EXTERIOR

KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91

-EXTERIOR SECTION PARTS LIST

Mark No. Description Part No. Mark No. Description Part No.

1 Screw BMZ26P050FMC

2 Screw BMZ30P050FMC

3 Case CNB2550

4 Holder CNC8972

5 Insulator CNM6849

6 Cushion CNM6935

7 Main Unit CWM7090

8 Screw BMZ30P080FMC

9 Screw BPZ30P060FSN

10 Terminal(CN202) CKF1059

11 Terminal(CN303) CKF1059

12 Connector(CN302) CKM1065

13 Connector(CN301) CKM1322

14 Plug(CN652) CKS3535

15 Plug(CN651) CKS3542

16 Connector(CN701) CKS3568

17 Antenna Jack(CN201) CKX1024

18 Holder CNC8711

19 Holder CNC8712

20 FM/AM Tuner Unit CWE1543

21 Holder CNC6774

22 Chassis Unit CXB5288

23 Screw BPZ26P100FMC

24 Button(EJECT) CAC4839

25 Button(AM) CAC4841

26 Button(TAPE) CAC4843

27 Button(FM) CAC4848

28 Button(1,2) CAC5274

29 Button(3,4) CAC5275

30 Button(5,6) CAC5276

31 Button(SEEK,TRACK) CAC6543

32 Button(DISC) CAC6544

33 Button(SCAN,MSG) CAC6545

34 Button(RDS) CAC6546

35 Button(TRAF) CAC6547

36 Button(TYPE) CAC6548

37 Holder CNC7052

38 Holder CNV4738

39 Holder CNV4739

40 Holder CNV4740

41 Holder CNV4741

42 Lighting Conductor CNV4883

43 Holder CNV5337

44 Keyboard Unit CWM7101

45 Socket(CN902) CKS3548

46 Socket(CN901) CKS3555

47 Socket(CN903) CKS3972

48 Rubber CNV4743

49 LCD Unit CWM7104

50 Screw BPZ26P100FMC

51 LCD CAW1594

52 Plug(CN951) CKS3574

53 Holder CNV6140

54 Knob Assy CXA9518

* 55 Knob CAA1401

56 Spring CBL-108

57 Grille Unit(M8406ZT) CXB5287

Grille Unit(M9406ZT) CXB5582

58 Door(M8406ZT) CAT2127

Door(M9406ZT) CAT2140

59 Spring CBH1371

60 Cassette Mechanism ModuleEXK3885

61 Screw IMS26P050FMC

62 Transistor(Q331) 2SB1185

63 Transistor(Q521,522) 2SB1185

NOTE:

-Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List.

-Screws adjacent to ∇mark on the product are used for disassembly.

KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91

2.2 CASSETTE MECHANISM MODULE

KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91

1 Screw BSZ20P040FMC

2 Washer CBF1037

3 Washer CBF1038

4 Washer CBG1003

5 Deck Unit EWM1027

6 Screw(M2x5) EBA1028

7 Screw(M2x2.5) EBA1037

8 Spring EBH1531

9 Spring EBH1589

10 Connector(CN251) CKS3540

11 Spring EBH1515

12 Spring EBH1587

13 Spring EBH1517

14 Spring EBH1518

15 Spring EBH1519

16 Spring EBH1537

17 Cord EDD1027

18 Photo-interrupter(EGN2,3) EGN1006

19 Photo-interrupter(EGN1) EGN1005

20 Roller ENR1031

21 Shaft ELA1362

22 Roller ELA1348

23 Arm ENC1490

24 Arm ENC1397

25 Guide ENC1519

26 Holder ENC1516

27 Lever ENC1448

28 Arm ENC1488

29 Roller ENR1023

30 Belt ENT1027

31 Gear ENV1347

32 Collar ENV1508

33 Gear ENV1350

34 Flywheel ENV1500

35 Worm Gear ENV1439

36 Worm Wheel ENV1440

37 Gear ENR1037

38 Lever ENV1533

39 Arm ENV1525

40 Gathering PCB ENX1037

41 Gathering PCB ENX1060

42 Switch(S1)(S2) ESG1004

43 Motor Unit(M2)(SUB) EXA1382

44 Chassis Unit EXA1559

45 Tube ENM1039

46 Roller ENR1027

47 Reel Unit EXA1560

48 Head Base Unit EXA1434

49 Lever Unit EXA1578

50 Gear Unit EXA1545

51 Frame Unit EXA1476

52 Lever Unit EXA1439

53 Head Assy(HD1) EXA1594

54 Motor Unit(M1)(MAIN) EXA1499

55 Washer HBF-179

56 Screw JGZ20P025FNI

57 Spring EBH1545

58 Washer YE20FUC

59 Pinch Roller Unit EXA1533

60 Pinch Roller Unit EXA1532

61 Capacitor(C1) CEAL4R7M35

Mark No. Description Part No. Mark No. Description Part No.

-CASSETTE MECHANISM MODULE SECTION PARTS LIST

KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91

1234

Q203

L2 D5 L4 D7

Q201

AM RF

OSC

D231

CF52

CF51

T31 Q31

CF232

CF230

23 25

PA4026A

IC1

CF53 L52

PA4024A

IC2

DIVER

IC202

LA1061M

CN201

SUB

ANT

MAIN

ANT

FIX

COMP

FMTV

AMTV

VCO

AMIFC

FMB

AMB

TUNB

19 20 17 15 21 14 13 11 62

IC201 PM2007A

PLL

XIN

XOUT

PDI

PCK

PDO

PCE

COMP

IC204 PM4006B

11 12

IC205

NJM2903M

RDS DECODER

CN251

CN252

CN253

IC251

HA12216F

TAPE EQUALIZER

MECHANISM DRIVER

IC351

PA2020A

Q271

B.U

SUB

MOTOR

MAIN

MOTOR

TAPE-L

MTL

VR301

VREF

Q351

Q352

STBY

LOAD

SWITCH

MODE

SENSE

FWD

SENSE

REV

SENSE

FWD

LcH

REV

LcH

41 910

638 36 32

14 15 17 19

47 12

40 7 43

Lch

FMSL

AMSL

STO/AMDET

COMP

FMSD

PNS

S-80736AN-D0

IC703

RESET

VDD

Q573

Q576

Q578

Q577

Q572

Q575

Q571

Q574

HA12181FP

IC203

AM NOISE

CANCELLER

3AM-L

FM-L

AM-L

Q551

Q552

Q553

LCD

BACK

LIGHT

SWITCH

BLPW

IC951

LCD DRIVER

LC75874W

69 70

LCD

CN951

SWD5V

CN652

CN903 CN901

CN902

CN651

CN701

LCDBL

16 17 18 19

9876

20 18 2

3157K

57K

13 15

RESET

Q706 88 TAPEMUTE

AUD+B

TAPE-L

Q201

DSSILL

XIN

XOUT

PCK

PDO

PCE

5,6

13 ST

38 37

AMAIN UNIT

FM/AM TUNER UNIT

CDECK UNIT

DPCB UNIT

REEL PCB

GLCD UNIT

70µs

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91

5678

Q528

Q530

Q527

Q529

Q531

Q521

Q522

Q525 Q526

ILLUMINATION

DIMMER

CONTROL

ACC

Q501

Q323

REGULATOR

VDD5V

VDD

Q332

Q331

AUD+B

TUNB

REGULATOR

Q608

VDD SWITCH

VDD

SYSPW

Q337-1

Q336

Q337-2

Q335

Q302

ASEN

Q301

BSEN

Q303

ISEN

Q359

Q360 Q358

TUNB

TC74HC4066AF

IC781

ANALOG

SWITCH

NJM2068MD

IC703

NJM2068MD

IC702

Q709

Q603

Q607

UNBAL BAL

NJM2068MD

MIX AMP

IC701

L+

L-

6,12

ANSW

Q205

HA12181FP

IC203

AM NOISE

ANCELLER

Q703

MUTE

Q705

MUTE

Q701

AM-L

TUNER-L 21

KEY

MATRIX

19 20

S903 EJECT

14322

POWER

VOLGND

ENC1M

ENC2P

CN901

24 21 415

CN651

KD1

POWER

ENC1M

POWER

53 54 55

S901 POWER-VOL

TAPE-L

AMMT

FMMT

AMMT

FMMT

37 38

ENC1P

DSSILL

SYSTEM CONTROLLER

IC601

PDI

PCK

PDO

PCE

95 90

AMPW

AMPW 44

FMPW 43 AUD+B

ASEN

BSEN

ISEN

HA12187FP

IC681

AVC LAN

TX+

TX-

SYSMUTE

IPPW

ANSW

100

CN301

CN302

ACC

MUTE

ILL+

ACC

ILL-

FMPW

AMB

FMB

Q335

Q336

KEYBOARD UNIT

PD5579A

ENC2M

ENC1P

KD1

KST2

S902

AUDIO-TUNE

2110 13 8

KST2

ENC1M

ENC1P

ENC2M

ENC2P

KST2

KD1

ENC2M

ENC2P

SYSPW

KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91

1234

3.2 MAIN UNIT(GUIDE PAGE)

Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS

LIST”.

CASSETTE MECHANISM MODULE

SYSTEM MUTE

MIX AMP

TAPE MUTE

TUNER MUTE

RBDS DECODER

AM PNS

FM DIVERSITY

PLL

FM:-26dBs(400Hz,30%)

AM:-16dBs(400Hz,30%)

TAPE:- 8dBs

FM:-18dBs

AM:-18dBs

TAPE:-4dBs

AMAIN UNIT

CD E

FCN901

A-a

A-aA-a A-bA-b

A-bA-b

A-aA-a

Large size

SCH diagram

Guide page

Detailed page

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