Pioneer GX-470 Service manual

ORDER NO.

CRT2916

GX470

AUDIO SYSTEM

HEAD UNIT

VEHICLE DESTINATION

LEXUS GX470 U.S.A., CANADA November 2002 86120-60440 P1731 KEX-M8727ZT/UC

LEXUS GX470 U.S.A., CANADA November 2002 86120-60470 P1732 KEX-M8527ZT/UC

PRODUCED

AFTER

TOYOTA PARTS No. ID No.

PIONEER MODEL

No.

KEX-M8727ZT-91/UC

KEX-M8527ZT-91/UC

Manufactured for TOYOTA

by PIONEER CORPORATION

PUB.NO.

CRT2916

1234

A

For details, refer to "Important symbols for good services".

KEX-M8727ZT/UC (P1731)

B

KEX-M8527ZT/UC (P1732)

Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. "Dolby" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.

C

This service manual does not describe the CD test mode. For the operations in the CD test mode, refer to the CD player's Service Manual.

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

Model No. Order No. Mech.Module Remarks

CX-1011 CRT2406 3L Cassette Mech. module: Mech.Description, Disassembly

D

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

Description Part No.

KEX-M8727ZT-91/UC KEX-M8527ZT-91/UC Polyethylene Bag CEG1174 CEG1174 Carton CHG4857 CHG4857 Contain Box CHL4857 CHL4857

* Air Cap CHW1947 CHW1947

E

F

Cover CEG1045(x2) CEG1045(x2)

2

1234

KEX-M8727ZT/UC

5678

[ Important symbols for good services ]

In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely. When you find the procedures bearing any of the symbols, be sure to fulfill them:

1. Product safety

You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should keep the safety during servicing by following the safety instructions described in this manual.

2. Adjustments

To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable. In accordance with the procedures or instructions described in this manual, adjustments should be performed.

3. Cleaning

For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning, proper cleaning should be performed to restore their performances.

4. Shipping mode and shipping screws

To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or the shipping screws should be installed before shipping out in accordance with this manual, if necessary.

A

B

5. Lubricants, glues, and replacement parts

Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed ones should be used.

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.

C

D

E

56

KEX-M8727ZT/UC

F

3

7

8

1234

1. SPECIFICATIONS

General

Power source . . . . . . .13.2 V(10.5V—16.0V allowable)

Backup current. . . . . . . . . . . . . . Less than 0.3 mA

Grounding system . . . . . . . . . . . . . . Negative type

Weight . . . . . . . . . . . . . . . . . . . . . . . .1.16 kg

T ape player

Tape . . . . . . . . . Compact cassette tape (C-30 - C-90)

Tape speed . . 4.76 cm/sec.(+0.14 cm/sec.,-0.05 cm/sec.)

Wow & ﬂutter. . . . . . . . . . . Less than 0.2 %(WRMS)

Fast forward/rewind time. . . . Less than 110 sec. for C-60

Stereo separation . . . . . . . . . . . . . More than 30 dB

Signal-to-noise ratio . . . . . . . . . . . . More than 40 dB

FM tuner

Frequency range. . . . . . . . . . 87.75,87.9 - 107.9 MHz

Usable sensitivity . . . . .Less than 14 dBµV (S/N: 30 dB)

Signal-to-noise ratio . . . . .More than 46 dB(54dBµ input)

Distortion . . . . . . . . . . . . . . . . . Less than 1.5%

Digital noise . . . . . . Less than 25 mVp-p (74 dBµ input)

AM tuner

Frequency range. . . . . . . . . . . . . . 530 - 1,710 kHz

Usable sensitivity . . . . Less than 34 dBµV(S / N : 20 dB)

Selectivity . . . . . . . . . . . . More than 20 dB (±9 kHz)

Signal-to-noise ratio . . . . More than 42 dB (74 dBµ input)

Distortion . . . . . . . . . . . . . . . . . Less than 1.5%

A

B

C

D

E

F

56

KEX-M8727ZT/UC

7

8

5

1234

2. EXPLODED VIEWS AND PARTS LIST

NOTES : • Parts marked by " * " are generally unavailable because they are not in our Master Spare Parts List.

A

• Screw adjacent to mark on the product are used for disassembly.

• For the applying amount of lobricants or glue, follow the instructions in this manual. (In the case of no amount instructions,apply as you think it appropriate.)

2.1 EXTERIOR

"

2

B

24

C

33

36

37

38

46

D

49

43

25

44

45

35

31

48

2

47

3

41

38

24

42

20

40

32

37

6

5

24

19

40

34

49

21

14

49

16

15

10

8

17

11

13

12

21

18

22

9

10 10

26

E

43

27

28

49

39

1

29

30

1

4

7

23

1

F

1

6

KEX-M8727ZT/UC

1

1234

5678

EXTERIOR SECTION PARTS LIST

Mark

No. Description Part No.

1 Screw BMZ30P050FMC 2 Screw BSZ26P060FMC 3 Upper Case CNB2757 4 Front Frame CNC9684 5 Earth CND1020

* 6 Cushion CNM5281 7 Insulator CNM7528 8 Main Unit(KEX-M8727ZT) CWM8581 Main Unit(KEX-M8527ZT) CWM8060 9 Screw BMZ30P060FMC

10 Screw(M3x6) CBA1393 11 Connector(CN801) CKM1322 12 Connector(CN473) CKM1350 13 Connector(CN472) CKM1351 14 Plug(CN804) CKS3539

15 Connector(CN353) CKS3568 16 Antenna Jack(CN501) CKX1024 17 Rear Frame CNC9685 18 Holder CNC9686 19 FM/AM Tuner Unit CWE1630

20 Holder CNC8855 21 Terminal(CN802,803) VNF1084 22 Transistor(Q811) 2SB1185 23 Chassis Unit CXB7972 24 Screw BPZ20P080FMC

25 Button(EJECT) CAC7260 26 Button(TRAF) CAC7261 27 Button(AM) CAC7262 28 Button(FM) CAC7263 29 Button(TAPE) CAC7264

30 Button(DISC) CAC7265 31 Button(SEEK,TRACK) CAC7266 32 Button(CH,DISC) CAC7267 33 Rubber CNV6939 34 Lighting Conductor CNV6942

35 Lighting Conductor CNV6943 36 Lighting Conductor CNV6944 37 Lighting Conductor CNV6948 38 Holder CNV6951 39 Holder CNV6952

40 Holder CNV6953 41 Keyboard Unit CWS1337 42 Socket(CN901) CKS3552 43 Knob Unit CXB8817 44 Grille Unit(KEX-M8727ZT) CXB9460

Grille Unit(KEX-M8527ZT) CXB9463 45 Door CAT2291 46 Spring CBH1371 47 Shield Unit CXB9781 48 Cassette Mechanism Module EXK4290

56

No. Description Part No.

Mark

49 Screw ISS26P055FUC

KEX-M8727ZT/UC

A

B

C

D

E

F

7

8

1234

2.2 CASSETTE MECHANISM MODULE

For grease application, refer to the service manual for CX-1011 (CRT2406).

A

B

C

D

E

D

F

8

1234

KEX-M8727ZT/UC

5678

CASSETTE MECHANISM MODULE SECTION PARTS LIST

Mark

No. Description Part No.

1 Screw BSZ20P040FMC 2 Washer CBF1037 3 Washer CBG1003 4 Screw EBA1028 5 Screw CBA1037

6 Spring EBH1653 7 Spring EBH1642 8 Spring EBH1641 9 Spring EBH1626 10 Spring EBH1627

11 Spring EBH1648 12 Cord EDD1024 13 Photo-reﬂector(Q101) EGN1004 14 Arm ENC1526 15 Lever EXA1610

16 Lever ENC1543 17 Arm ENC1532 18 Frame ENC1533 19 Holder ENC1547 20 Gear ENC1535

21 Arm ENC1550 22 Roller ENR1040 23 Belt ENT1027 24 Collar ENV1508 25 Arm ENV1539

26 Arm ENV1540 27 Gear ENV1569 28 Gear ENV1547 29 Gear ENR1044 30 Worm Wheel ENV1559

31 Lever ENV1551 32 Flywheel ENV1554 33 Gathering PCB ENX1073 34 Switch(S101,S102,S103) ESG1007 35 Deck Unit EWM1031

36 Plug(CN251) CKS3540 37 Gathering PCB ENX1066 38 Motor Unit(M1) EXA1618 39 Motor EXM1035 40 Head Assy(HD1) EXA1594

41 Arm ENC1537 42 Screw JGZ20P025FNI 43 Bracket ENC1559 44 Chassis Unit EXA1636 45 Pinch Holder Unit EXA1608

46 Pinch Roller ENV1518 47 Pinch Holder Unit EXA1607 48 Pinch Roller ENV1518 49 Reel Unit EXA1625 50 Head Base Unit EXA1611

56

KEX-M8727ZT/UC

No. Description Part No.

Mark

51 Lever Unit EXA1587 52 Gear Unit EXA1596 53 Motor Unit(M2) EXA1623 54 Washer HBF-179 55 Spring EBH1537

56 Worm Gear ENV1564 57 Spring EBH1655 58 Lever ENC1548 59 Washer YE15FUC 60 Tube ENM1039

61 Spring EBH1645 62 Spring EBH1545 63 Sensor Unit EWM1041

7

A

B

C

D

E

F

9

8

4

Q

M

1234

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

A

MAIN UNIT

FM/AM TUNER UNIT

CN501

ANT

MAIN

SUB

B

5

SUB

6

MAIN

MFIX

13

IC501

LA1061M

AMANT

28

ATT

FMANT

27 26

RFGND

1

ATT

Q501

NIN

AMRF

ANT ADJ

FMRF

FM/AM 1ST IF 10.7MHz

T51 Q51 CF51

MIXER, IF AMP, DET.

CF202

AM 2ND IF

IMG ADJ

RF ADJ

LOCL

450kHz

AM PNS

16 3

IC561

HA12181FP

CF52 CF53

IC1

10.25MHz

AMPNS

17

MPXREF 41kHz

AMDET

X901

AMDET

VCC

9

222510 14 12 15 16 8 13 2 4

AUD+B

SW5V

9

IC 3

EEPROM

VDD

CREQ

DI/DO

19

CE2CKCE1

Q561

IC 2 FM MPX

SDBWSLFMSD

L ch

6

COMP

21

LDET

18

STIND

NL1

NL2

1

3

FML

RBDS

DECODER

8

Q252

Q406

IC252

PM4009A

TUNER MIXING

FML

2

AML

20

RCK,RDT,rdslk,57K,drst

NJM2068

AMB

Q405

IC401

C

Q502

DECK UNIT

C

CN252

FWD

LcH

REV LcH

1

4

5

D

CN254

M

MAIN

MOTOR

2 1

M

SUB

MOTOR

E

TAPE EQUALIZER

37 39

5

MECHANISM DRIVER

2

CN255

28

VR302

VREF

IC351

PA2020A

1

CN253

HA12216F

12

MODE

SENSE

IC251

11

NR

Q271

17

7

1

CN256

D

CN251

+B

16

6

TAPE-L

MTL

BU

MTL

STBY

LOAD

64

LOAD

70µs

SWITCH

SENSOR UNIT

CN353

4

3

20

AUD+B

CSL

3

BU

20

RESET

VDD

MS,DIR,PLAY,MTL, NR,CSLOAD,POS,ES, SC2,SC1,CM,STBY

IC602

S-80735ANDZI

2

51

19

ldet

12

1

RESET

LOCL

13

PDO,PDI

31,32

XOUT

pck

PCE2

PCE1

53

33

52

XIN

15

KEY MATRIX

ILLUMINATION

st

NL1

NL2

FMSD

93SL56

57

91

55

SYSTEM CONTROLLER

IC601

PD5840A

CN804

KDT,kst

ILLB

Q811

5,613,14

CN901

B

KEYBOARD UNIT

Q816

Q

AMB

AMPW

44

BU

Q813

F

10

KEX-M8727ZT/UC

1234

6

FMSD

5678

A

TUNER MIXING AMP

FML

2

NJM2068MD

AML

Q406

20

IC252

PM4009A

252

RCK,RDT,rdslk,57K,drst

Q405

AMB

st

NL1

NL2

57

91

55

YSTEM CONTROLLER

IC601

PD5840A

AMB

44

IC401

AMPW

FMB

Q563

Q564

4

AUD+B

LAMP

1

43

SYSPWR

TUL CSL

FMB

FMPW

6

SWVDD

ASENS BSENS

AUDIO SELECT

FOR AMP

16 8

2

IC202

1

TC4052BF

5

LANL

AUDIO SELECT

FOR RSA

1

CSL

IC302

2

TUL

TC4052BF

5

LANL

75

SYSMUTE15SYSMUTE2

22

IPPW

30

TX

29

RX

100

ANTB

11

2

ISENS

73

75

16 8 8

BALANCE TO

UNBALANCE

IC201

NJM2068MD

8

BU

Q882

86 1 2

HA12187FP

SW5V

SWVDD

3

6

Q884

IC701

Q645

UNBALANCE TO BALANCE

IC203

NJM2068MD

UNBALANCE TO BALANCE

IC303

NJM2068MD

LANL+

LANL-

5

VDD

Q644

Q805

ISEN

Q807

Q806

ASEN

BSEN

Q453

BU

Q451

ILL

ACC

BU

6763

8

IC204

NJM2068MD

IC304

NJM2068MD

SWVDD

Q863

Q452

AUD+B

7

SYSTEM MUTE

7676

AUD+B

Q867Q865

Q862

SYSTEM MUTE

Q205Q204

Q305Q304

Q866Q864

Q860

Q861

CN801

+B

ILL

AMP

TX+

L+

ANT

TX-

L-

ACC

B

CN472

RSL+

TX1+

TX1-

BU

RSL-

BU

C

CN473

LANL+

LANL-

AVC-LAN

TX+

TX-

ACC

+B

D

N804

5,6

Q816

KDT,kst

ILLB

Q811

Q813

BU

AUD+B

Q808

Q802

BU

VDD

5R6V IC

IC870

S-81256SGUP-DIM

32

Q870

BU

E

F

56

KEX-M8727ZT/UC

7

8

11

X X

1234

3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)

A

B

C

"ELECTRICAL PARTS LIST".

Large size

A-b

SCH diagram

Guide page

Detailed page

A-a A-b

A-a

FM DIVERSITY

A-a

FM:-24.0dBs(30%,400Hz)

AM:-11.7dBs(30%,400Hz)

RBDS DECODER

KE KE

TUNER

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

5V

D

SYSTEM CONTROLLER

E

CN251

C

TAPE:-7.5dBs(0dB,1kHz)

8V

F

CN901

B

A

12

1234

KEX-M8727ZT/UC

5678

A

A-b

R417,418 KEX-M8727ZT 91K KEX-M8527ZT 62K

TUNER MIXING AMP

FM:-14.4dBs

AM:-14.8dBs

(KEX-M8727ZT)

AM:-11.5dBs

(KEX-M8527ZT)

TAPE: -7.5dBs

VDD 5V

TAPE: -7.5dBs

BALANCE TO UNBALANCE

FM:-14.4dBs AM:-14.8dBs

(KEX-M8727ZT)

AM:-11.5dBs

(KEX-M8527ZT)

AUDIO SELECTOR FOR AMP

AUDIO SELECTOR FOR RSA/RSE

UNBALANCE TO BALANCE

MAIN UNIT

A

SYSTEM MUTE

L-

(AMP)

(RSA)

B

L+

R+

R-

C

L-

L+

5V

HARD MUTE

D

13.2V

>

5V

13.2V

E

13.2V

ILL

SENSE

8.3V

NOTE :

Symbol indicates a resistor. No differentiation is made between chip resistors and discrete resistors. Symbol indicates a capacitor. No differentiation is made between chip capacitors and discrete capacitors.

B.UP

SENSE

ACC

SENSE

Decimal points for resistor and capacitor fixed values are expressed as :

←

2.2 2R2

←

0.022 R022

The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation.

FM:-4.6dBs

AM:-5.0dBs

(KEX-M8727ZT)

AM:-1.7dBs

(KEX-M8527ZT)

TAPE: +2.3dBs

F

A

56

KEX-M8727ZT/UC

7

8

13

1234

A

A-b

KEX-M8727ZT

KEX-M8527ZT

TUNER MIXING AMP

1

2

5V

B

RBDS DECODER

C

FM:-24.0dBs(30%,400Hz)

AM:-11.7dBs(30%,400Hz)

A-b A-a

A-a

D

E

FM DIVERSITY

F

A-a

14

1234

KEX-M8727ZT/UC

5678

A

3

5V

4

5

6

7

A-b

B

SYSTEM CONTROLLER

C

TAPE:-7.5dBs(0dB,1kHz)

CN251

C

D

8V

A-b A-a

A-a

E

CN901

B

F

56

KEX-M8727ZT/UC

A-a

7

8

15

1234

A

R-

L+

L-

(AMP)

R+

L+

L-

(RSA)

B

SYSTEM MUTE

MAIN UNIT

A

C

A-b A-a

UNBALANCE TO BALANCE

HARD MUTE

D

AUDIO

SELECTOR

AUDIO SELECTOR

FOR AMP

FOR RSA/RSE

E

BALANCE TO UNBALANCE

FM:-14.4dBs

AM:-14.8dBs

AM:-11.5dBs

(KEX-M8727ZT)

(KEX-M8527ZT)

TAPE: -7.5dBs

FM:-14.4dBs

AM:-14.8dBs

AM:-11.5dBs

(KEX-M8727ZT)

(KEX-M8527ZT)

TAPE: -7.5dBs

VDD 5V

F

R417,418

KEX-M8727ZT 91K

KEX-M8527ZT 62K

A-b

16

G AMP

1

2

V

KEX-M8727ZT/UC

1234

5678

A

FM:-4.6dBs

AM:-5.0dBs

AM:-1.7dBs

(KEX-M8527ZT)

(KEX-M8727ZT)

TAPE: +2.3dBs

13.2V

HARD MUTE

>

13.2V

B.UP

SENSE

ILL

ACC

SENSE

B

←

The > mark found on some component parts indicates

the importance of the safety factor of the part.

Therefore, when replacing, be sure to use parts of

Decimal points for resistor

and capacitor fixed values

are expressed as :

2.2 2R2

0.022 R022

identical designation.

C

A-b A-a

Symbol indicates a resistor.

No differentiation is made between chip resistors and

discrete resistors.

Symbol indicates a capacitor.

No differentiation is made between chip capacitors and

discrete capacitors.

NOTE :

D

13.2V

5V

E

8.3V

F

V

3

4

5

6

KEX-M8727ZT/UC

56

7

A-b

17

8

1234

3.3 KEYBOARD UNIT

A

B

PWR•VOL

C

D

E

CN804

A

F

B

18

1234

KEX-M8727ZT/UC

5678

A

KEYBOARD UNIT

B

8V 85mA

C

D

56

KEX-M8727ZT/UC

E

F

B

7

8

19

1234

4

6

3.4 CASSETTE MECHANISM MODULE

A

DECK UNIT

C

CN252

C253 390P

B

RL

RR

Rev-L

Rev-R

Fwd-R

FR

FL

HD1 HEAD ASSY EXA1594

TEST TAPE NCT-150

C

(400Hz, 200nWb/m)

Fwd-L

R283 0R0

R284 0R0

R282 0R0

C254 390P

C252 390P

C251 390P

R256

180

R281 0R0

R255

180

C256

C271

1/50

C255

VR302

CCP1280

33K(B)

R260

13K

R01

R259

13K

VR301

CCP1280

33K(B)

R291

0R0

R262

R261

270K

R257

3900P

C401

R1

26

252423

NC

RAI(L)

IC251

BIAS

RAI(R)

5

678

18K

C310

NC

PBOUT(L)

NC

PBOUT(R)

C309

DET(L)

R1

15K

R401

21

22

NC

MSGV(S) MSGV(R)

MAOUT

MSI

MSDET

VCC

MSOUT

MSGV

F/R

120/70

NR

MUTE

NC

9

10

0R0

R287

R1

R258

18K

31

NFI(L)

32

RIN(L)

33

RIP

34

FIN(L)

35

GND

36

GND

37

FIN(R)

38

VREF

39

RIN(R)

40

NFI(R)

R293

18K

0R0

R292

0R0

C302

292827

30

TAI(L)

MOUT(L)

EQOUT(L)

HA12216F

DOLBY B NR

EQOUT(R)

M-OUT(R)

TAI(R)

234

1

C301

R294

0R0

R1

R271

20 19 18 17 16 15 14 13 12 11

R33

C402

3R3K

R402

R403 910

C404

R273

0R0

R272

C403

R01

R022

R321

R276

R274

Q271 2SC411

100K

C

0R0

C272

R1

0R0

R322

D

R285 0R0

CN251

MUTE

-8.24dBs(300mV)±1dB

E

F

A

CN353

20

C

KEX-M8727ZT/UC

1234

0

5678

A

M1 MOTOR UNIT (MAIN MOTOR) EXA1618

CN255

CN253

100K

Q271 2SC4116

R022

C403

100K

R276

1

0R0

R274

0R0

R321

C405

R275

R404 270K

R277

R278

220K

47K

R033

R375 0R0

R373 0R0

R355

MCS

RS3

RRS

RS2

FRS

RS1

RSB

SC2

SC1

TAB

MS2

MC

CE

VCC2

VCC

NC

IC351 PA2020A

SM1

MM

270K

C

R374 0R0

C352

3900P

R362 300

CN254

C351 R22

MECHANISM

R351 1K

R353 1K

R352 1K

R354 1K

DRIVER

C356 R01

C354 R01

C353 R01

RSB GND RS

mtl

MCS

load

CN256

D

M2 MOTOR UNIT (SUB MOTOR) EXA1623

Q101 EGN1004

L101

S103

S102

S101

L102

70µs

MODE

LOAD

ESG1007x3

SENSOR UNIT

B

C

N353

D352 1SS355

C355 R1

D

SWITCHES: SENSOR UNIT

S101:LOAD SWITCH..........EJECT-PLAY

S102:MODE SWITCH............ON-OFF

S103:70µs SWITCH...............ON-OFF

The underlined indicates the switch position.

E

F

56

KEX-M8727ZT/UC

C D

7

8

21

1234

4. PCB CONNECTION DIAGRAM

4.1 MAIN UNIT

A

NOTE FOR PCB DIAGRAMS

1.The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic dia gram.

2.Viewpoint of PCB diagrams

Connector

B

P.C.Board

C

Capacitor

Chip Part

SIDE A

SIDE B

MAIN UNIT

A

ANTENNA

D

FM/AM TUNER UNIT

E

F

22

A

KEX-M8727ZT/UC

1234

5678

A

SIDE A

AVC-LAN

B

20

11121231341451561671781891910

10119128137146155164173182191

C

CN251

C

D

E

FRONT

KEX-M8727ZT/UC

56

B

CN901

F

A

7

8

23

1234

A

MAIN UNIT

A

B

C

D

E

F

A

24

1234

KEX-M8727ZT/UC

5678

A

SIDE B

B

C

D

E

56

KEX-M8727ZT/UC

F

A

7

8

25

1234

4.2 KEYBOARD UNIT

KEYBOARD UNIT

A

B

TUNE

SIDE A SIDE B

KEYBOARD UNIT

B

A

TRAF

CH

PROG

CH

PROG

>

DISC

>

DISC

C

TAPE

CN804

FM

D

>

SEEK

TRACK

AM

E

EJECT

PWR•VOL

F

>

SEEK

TRACK

26

B

KEX-M8727ZT/UC

1234

5678

4.3 CASSETTE MECHANISM MODULE

DECK UNIT

C

C271

SIDE A

CN353

A

18

16

17

20

19

14

6

4

2

7

5

3

1

12

10

8

15

13

11

9

A

B

CN251

C321

C

IC,Q

IC253 IC251

Q351

Q352

C

ADJ VR302

VR301

DECK UNIT

HEAD ASSY

CN252

SIDE B

M2

CN254

22

1

21

D

M1

CN255

CN253

CN256

D

E

56

KEX-M8727ZT/UC

F

C

7

8

27

1234

A

SENSOR UNIT

D

L101

S103

70µs

S102

MODE

S101

LOAD

CN256

L102

Q101

B

C

REEL SENSE

C

6 5

4 3 2

1

CN253

D

E

F

D

28

KEX-M8727ZT/UC

1234

5678

5. ELECTRICAL PARTS LIST

NOTE:

• Parts whose parts numbers are omitted are subject to being not supplied.

• The part numbers shown below indicate chip components.

Chip Resistor RS1/_S___J,RS1/__S___J

Chip Capacitor (except for CQS.....)

CKS....., CCS....., CSZS.....

Circuit Symbol and No. Part NamePart No.

A

Unit Number:CWM8581(KEX-M8727ZT)

:CWM8060(KEX-M8527ZT)

Unit Name:Main Unit

MISCELLANEOUS

IC 201 IC NJM2068MD IC 202 IC TC4052BF IC 203 IC NJM2068MD IC 204 IC NJM2068MD IC 252 IC PM4009A

IC 302 IC TC4052BF IC 303 IC NJM2068MD IC 304 IC NJM2068MD IC 401 IC NJM2068MD IC 501 IC LA1061M

IC 561 IC HA12181FP IC 601 IC PD5840A IC 602 IC S-80735ANDZI IC 701 IC HA12187FP IC 870 IC S-81256SGUP-DIM

Q 201 Transistor DTC144EU Q 202 Transistor DTC144EU Q 203 Transistor DTC144EU Q 204 Transistor FMG13 Q 205 Transistor FMG13

Q 301 Transistor DTC144EU Q 302 Transistor DTC144EU Q 303 Transistor DTC144EU Q 304 Transistor FMG13 Q 305 Transistor FMG13

Q 405 Transistor DTC143TU Q 406 Transistor IMH3A Q 451 Transistor 2SB1260 Q 452 Transistor 2SC2712 Q 453 Transistor 2SC2712

Q 497 Transistor DTC114EU Q 501 Transistor IMX1 Q 502 Transistor 2SC2712 Q 561 Transistor 2SC2712 Q 563 Transistor IMT2A

Q 564 Transistor IMH1A Q 644 Transistor DTC114EU Q 645 Transistor 2SA1162 Q 801 Transistor DTC114EU Q 802 Transistor IMX1

Q 805 Transistor DTC144TUA Q 806 Transistor DTC144TUA Q 807 Transistor DTC144TUA

Circuit Symbol and No. Part NamePart No.

Q 808 Transistor 2SB1184F5 Q 811 Transistor 2SB1185

Q 813 Transistor 2SA1162 Q 816 Transistor IMX1 Q 825 Transistor 2SA1162 Q 860 Transistor 2SA1162 Q 861 Transistor DTC143EU

Q 862 Transistor DTC144TUA Q 863 Transistor IMD3A Q 864 Transistor DTA114EU Q 865 Transistor DTA114EU Q 866 Transistor DTA114EU

Q 867 Transistor DTA114EU Q 870 Transistor 2SD1767 Q 882 Transistor 2SA1162 Q 884 Transistor DTC124EU D 203 Diode HZU4R7(B2)

D 452 Diode 1SS355 D 472 Diode MPG06G-6415G50 D 473 Diode MPG06G-6415G50 D 474 Diode 1SS355 D 475 Diode 1SS355

D 497 Diode UDZS20(B) D 501 Diode 1SV241 D 502 Diode 1SV241 D 503 Diode DAP202K D 504 Diode 1SS355

D 691 Diode 1SS355 D 692 Diode 1SS355 D 693 Diode 1SS355 D 703 Diode UDZS18(B) D 704 Diode UDZS18(B)

D 801 Diode 1SS355 D 802 Diode UDZS5R6(B) D 803 Diode RM4LFJ10 D 804 Diode 1SS355 D 805 Diode UDZS20(B)

D 808 Diode HZU8R2(B2) D 809 Diode HZU7R5(B3) D 810 Diode HZU8R2(B2) D 811 Diode 1SS355 D 812 Diode HZU7R5(B3)

D 860 Diode HZU8R2(B3) D 861 Diode 1SS355 D 862 Diode 1SS355 D 863 Diode DAP202K D 864 Diode 1SS355

D 870 Diode MPG06G-6415G50 D 871 Diode UDZS16(B) D 882 Diode 1SS355 L 251 Inductor LCTA101J2520

A

B

C

D

E

F

56

KEX-M8727ZT/UC

7

8

29

Ω

1234

Circuit Symbol and No. Part NamePart No.

L 252 Inductor LCTC100K3216

L 363 Inductor LFEA4R7J

A

L 505 Ferri-Inductor LAU4R7K L 506 Coil CTB1112 L 507 Inductor LCTC6R8K3216 L 508 Inductor LCTC6R8K3216

L 509 Inductor LCTC6R8K3216 L 510 Inductor LCTA561J4532 L 511 Inductor LCTA4R7J2520 L 512 Inductor LCTA1R0J2520 L 513 Inductor LCTA1R0J2520

L 514 Inductor LCTA1R0J2520 L 561 Inductor LCTA4R7J2520

B

L 601 Inductor LCTA100J3225 L 801 Coil 350µH CTH1276 CG501 Surge Protector DSP-201M-A21F

CG502 Surge Protector DSP-201M-A21F X 251 Crystal Resonator 3.648MHz CSS1447 X 601 Radiator 10.0MHz CSS1577 VR561 Semi-ﬁxed 10k FU471 Fuse 5A CEK1216

FM/AM T uner Unit CWE1630

(B) CCP1396

RESISTORS

C

R 201 RS1/16S223J R 202 RS1/16S223J R 203 RS1/16S223J R 204 RS1/16S223J R 205 RS1/16S223J

R 206 RS1/16S223J R 207 RS1/16S223J R 208 RS1/16S223J R 211 RS1/16S101J R 212 RS1/16S101J

R 213 RS1/16S103J R 214 RS1/16S103J

D

R 215 RS1/16S163J R 216 RS1/16S163J R 217 RS1/16S163J

R 218 RS1/16S163J R 219 RS1/16S163J R 220 RS1/16S163J R 221 RS1/16S103J R 222 RS1/16S103J

R 223 RS1/16S103J R 224 RS1/16S103J R 225 RS1/16S181J

E

R 226 RS1/16S181J R 227 RS1/16S181J

R 228 RS1/16S181J R 229 RS1/10S470J R 230 RS1/10S470J R 231 RS1/10S470J R 232 RS1/10S470J

R 233 RS1/16S473J R 234 RS1/16S473J R 235 RS1/16S473J R 237 RS1/16S473J R 238 RS1/16S473J

F

R 239 RS1/16S473J R 240 RS1/16S473J R 241 RS1/16S222J

30

1234

Circuit Symbol and No. Part NamePart No.

R 243 RS1/10S103J R 244 RS1/10S103J

R 245 RS1/10S103J R 246 RS1/10S103J R 247 RS1/16S562J R 248 RS1/16S562J R 249 RS1/16S562J

R 250 RS1/16S562J R 257 RS1/16S102J R 261 RS1/16S225J R 285 RS1/16S104J R 286 RS1/16S104J

R 313 RS1/16S103J R 314 RS1/16S103J R 315 RS1/16S163J R 316 RS1/16S163J R 317 RS1/16S163J

R 318 RS1/16S163J R 319 RS1/16S163J R 320 RS1/16S163J R 321 RS1/16S103J R 322 RS1/16S103J

R 323 RS1/16S103J R 324 RS1/16S103J R 325 RS1/16S181J R 326 RS1/16S181J R 327 RS1/16S181J

R 328 RS1/16S181J R 329 RS1/10S470J R 330 RS1/10S470J R 331 RS1/10S470J R 332 RS1/10S470J

R 333 RS1/16S473J R 334 RS1/16S473J R 335 RS1/16S473J R 337 RS1/16S473J R 338 RS1/16S473J

R 339 RS1/16S473J R 340 RS1/16S473J R 359 RS1/16S100J R 401 RS1/16S432J R 402 RS1/16S432J

R 407 RS1/16S102J R 408 RS1/16S102J R 413 RS1/16S102J R 414 RS1/16S102J R 417 (KEX-M8727ZT) RS1/16S913J

R 417 (KEX-M8527ZT) RS1/16S623J R 418 (KEX-M8727ZT) RS1/16S913J R 418 (KEX-M8527ZT) RS1/16S623J R 427 RS1/16S203J R 428 RS1/16S203J

R 429 RS1/16S683J R 430 RS1/16S683J R 431 RS1/16S473J R 432 RS1/16S473J R 433 RS1/16S101J

R 451 RS1/16S102J R 452 RS1/16S223J R 453 RS1/16S823J R 454 RS1/16S181J R 455 RS1/16S181J

KEX-M8727ZT/UC

5678

Circuit Symbol and No. Part NamePart No.

R 456 RS1/16S181J R 457 RS1/16S181J R 458 RS1/16S181J R 459 RS1/16S223J R 460 RS1/16S223J

R 497 RS1/4S121J R 498 RS1/4S121J R 501 RS1/16S225J R 502 RS1/16S225J R 503 RS1/16S225J

R 504 RS1/16S225J R 505 RS1/16S222J R 506 RS1/16S104J R 507 RS1/16S103J R 508 RS1/16S103J

R 509 RS1/16S334J R 510 RS1/16S101J R 511 RS1/16S101J R 512 RS1/16S104J R 513 RS1/16S104J

R 514 RS1/16S103J R 515 RS1/16S182J R 516 RS1/16S683J R 517 RS1/16S224J R 518 RS1/16S473J

R 519 RS1/16S473J R 520 RS1/16S102J R 522 RS1/16S222J R 525 RS1/16S473J R 526 RS1/16S681J

R 527 RS1/16S681J R 528 RS1/16S681J R 529 RS1/16S103J R 530 RS1/16S681J R 531 RS1/16S473J

R 532 RS1/16S473J R 533 RS1/16S472J R 534 RS1/16S393J R 535 RS1/16S473J R 536 RS1/16S103J

R 537 RS1/16S473J R 538 RS1/16S681J R 539 RS1/16S681J R 543 RS1/16S681J R 546 RS1/16S103J

R 551 RS1/16S0R0J R 552 RS1/16S0R0J R 561 RS1/16S104J R 562 RS1/16S123J R 563 RS1/16S105J

R 564 RS1/16S682J R 567 RS1/16S822J R 568 RS1/16S222J R 569 RS1/16S184J R 570 RS1/16S223J

R 571 RS1/16S473J R 582 RS1/16S332J R 583 RS1/16S332J R 584 RS1/16S332J R 585 RS1/16S332J

R 603 RS1/16S102J R 605 RS1/16S102J R 606 RS1/16S0R0J

Circuit Symbol and No. Part NamePart No.

R 607 RS1/16S104J R 608 RS1/16S102J

R 609 RS1/16S681J R 610 RS1/16S0R0J R 611 RS1/16S0R0J R 612 RS1/16S102J R 620 RS1/16S0R0J

R 621 RS1/16S681J R 622 RS1/16S0R0J R 629 RS1/16S472J R 631 RS1/16S0R0J R 632 RS1/16S102J

R 633 RS1/16S102J R 634 RS1/16S102J R 635 RS1/16S471J R 637 RS1/16S102J R 638 RS1/16S102J

R 641 RS1/16S473J R 642 RS1/16S104J R 643 RS1/16S104J R 644 RS1/16S473J R 645 RS1/16S102J

R 646 RS1/16S103J R 647 RS1/16S102J R 648 RS1/16S102J R 651 RS1/16S0R0J R 654 RS1/16S102J

R 655 RS1/16S102J R 656 RS1/16S102J R 657 RS1/16S102J R 658 RS1/16S223J R 659 RS1/16S102J

R 660 RS1/16S102J R 661 RS1/16S102J R 662 RS1/16S102J R 663 RS1/16S102J R 664 RS1/16S102J

R 665 RS1/16S102J R 666 RS1/16S681J R 667 RS1/16S473J R 668 RS1/16S473J R 669 RS1/16S473J

R 670 RS1/16S473J R 671 RS1/16S473J R 672 RS1/16S473J R 673 RS1/16S473J R 674 RS1/16S473J

R 675 RS1/16S473J R 676 RS1/16S102J R 677 RS1/16S102J R 678 RS1/16S102J R 679 RS1/16S102J

R 680 RS1/16S102J R 681 RS1/16S102J R 682 RS1/16S102J R 683 RS1/16S102J R 684 RS1/16S102J

R 685 RS1/16S102J R 687 RS1/16S473J R 688 RS1/16S0R0J R 689 RS1/16S0R0J R 690 RS1/16S473J

A

B

C

D

E

F

56

KEX-M8727ZT/UC

7

8

31

1234

Circuit Symbol and No. Part NamePart No.

R 691 RS1/16S473J R 692 RS1/16S473J R 693 RS1/16S473J

A

R 698 RS1/16S102J R 699 RS1/16S473J

R 701 RS1/16S473J R 703 RS1/4S101J R 704 RS1/4S101J R 705 RS1PMF680J R 711 RS1/16S473J

R 801 RS1/8S222J R 802 RS1/8S472J R 803 RS1/8S472J R 804 RS1/8S472J

B

R 805 RS1/8S472J

R 806 RS1/8S472J R 807 RS1/4S121J R 808 RS1/4S121J R 810 RS1/16S104J R 811 RS1/16S104J

R 812 RS1/16S104J R 820 RS1/16S123J R 821 RS1/16S103J R 822 RS1/16S103J R 823 RS1/16S223J

C

R 824 RS1/16S102J R 825 RS1/16S331J R 826 RS1/16S103J R 827 RS1/16S471J R 828 RS1/16S221J

R 840 RS1/4S1R5J R 841 RS1/4S1R5J R 844 RS1/16S471J R 846 RS1/16S105J R 847 RS1/10S361J

R 848 RS1/16S272J R 849 RS1/16S392J

D

R 856 RS1/16S103J R 857 RS1/16S103J R 860 RS1/16S223J

R 861 RS1/16S103J R 862 RS1/16S104J R 863 RS1/16S223J R 865 RS1/16S103J R 867 RS1/16S472J

R 868 RS1/16S102J R 869 RS1/16S102J R 870 RS1/10S102J R 871 RS1/16S472J

E

R 882 RD1/4PU121J

R 884 RS1/16S223J R 886 RS1/16S472J R 888 RS1/16S473J

CAPACITORS

C 201 CEJQNP4R7M16 C 202 CEJQNP4R7M16 C 203 CEJQNP4R7M16 C 204 CEJQNP4R7M16 C 205 CCSRCH330J50

F

C 206 CCSRCH330J50 C 207 CCSRCH330J50 C 208 CCSRCH330J50

32

1234

Circuit Symbol and No. Part NamePart No.

C 209 CKSRYB102K50 C 210 CKSRYB105K10

C 215 CEJQNP4R7M16 C 216 CEJQNP4R7M16 C 219 CCSRCH220J50 C 220 CCSRCH220J50 C 221 CCSRCH220J50

C 222 CCSRCH220J50 C 223 4.7µF/35V CCH1432 C 224 4.7µF/35V CCH1432 C 225 4.7µF/35V CCH1432 C 226 4.7µF/35V CCH1432

C 227 CCSRCH221J50 C 228 CCSRCH221J50 C 229 CCSRCH221J50 C 230 CCSRCH221J50 C 231 CKSRYB473K50

C 232 CEJQ101M6R3 C 233 CKSRYB102K50 C 235 4.7µF/35V CCH1432 C 236 4.7µF/35V CCH1432 C 237 4.7µF/35V CCH1432

C 238 4.7µF/35V CCH1432 C 243 CKSQYB102K50 C 244 CKSQYB102K50 C 245 CKSQYB102K50 C 246 CKSQYB102K50

C 251 CKSRYB104K16 C 253 CEJQ220M6R3 C 254 CKSRYB104K16 C 256 CCSRCH270J50 C 257 CCSRCH270J50

C 259 CKSRYB104K16 C 260 CCSRCH471J50 C 261 CCSRCH471J50 C 262 CEJQ4R7M35 C 263 CKSRYB473K50

C 281 CKSRYB182K50 C 282 CKSRYB182K50 C 283 CKSRYB182K50 C 284 CKSRYB182K50 C 309 CKSRYB102K50

C 310 CKSRYB105K10 C 319 CCSRCH220J50 C 320 CCSRCH220J50 C 321 CCSRCH220J50 C 322 CCSRCH220J50

C 323 4.7µF/35V CCH1432 C 324 4.7µF/35V CCH1432 C 325 4.7µF/35V CCH1432 C 326 4.7µF/35V CCH1432 C 327 CCSRCH221J50

C 328 CCSRCH221J50 C 329 CCSRCH221J50 C 330 CCSRCH221J50 C 335 4.7µF/35V CCH1432 C 336 4.7µF/35V CCH1432

C 337 4.7µF/35V CCH1432 C 338 4.7µF/35V CCH1432 C 351 CEJQ4R7M35 C 355 CEJQ220M10 C 356 CEJQ100M16

KEX-M8727ZT/UC

5678

Circuit Symbol and No. Part NamePart No.

C 381 CKSRYB182K50 C 382 CKSRYB182K50 C 383 CKSRYB182K50 C 384 CKSRYB182K50 C 401 CKSRYB183K50

C 402 CKSRYB183K50 C 403 4.7µF/35V CCH1432 C 404 4.7µF/35V CCH1432 C 406 CKSRYB102K50 C 411 CKSRYB104K16

C 412 CKSRYB104K16 C 415 CKSRYB105K10 C 416 CKSRYB105K10 C 417 CCSRCH331J50 C 418 CCSRCH331J50

C 421 CEJQ470M6R3 C 480 CKSQYB102K50 C 493 CCSQCH221J50 C 494 CCSQCH221J50 C 497 CCSRCH221J50

C 503 CKSQYB103K50 C 504 CKSRYB222K50 C 505 CKSRYB222K50 C 506 CKSRYB222K50 C 507 CKSRYB222K50

C 508 CKSRYB103K50 C 509 CKSRYB103K50 C 510 CEJQ100M16 C 511 CKSRYB472K50 C 512 CEJQ100M16

C 513 CKSRYB473K50 C 514 CEJQ2R2M50 C 515 CKSRYB102K50 C 516 CKSRYB103K50 C 517 CKSRYB103K50

C 518 CKSRYB392K50 C 519 CKSRYB103K50 C 520 CKSRYB103K50 C 521 CEJQ101M10 C 522 CKSRYB103K50

C 523 CEJQ100M16 C 524 CKSRYB472K50 C 530 CCSRCH100D50 C 561 CEJQ3R3M50 C 562 CKSRYB333K16

C 563 CEJQNP1R0M50 C 564 CQMA683J50 C 565 CQMA333J50 C 566 CQMA333J50 C 567 CQMA333J50

Circuit Symbol and No. Part NamePart No.

C 604 CKSRYB104K16 C 605 CEJQ220M6R3

C 645 CKSRYB103K50 C 648 CKSRYB102K50 C 671 CCSRCH101J50 C 672 CCSRCH101J50 C 673 CCSRCH101J50

C 674 CCSRCH101J50 C 675 CCSRCH101J50 C 691 CKSRYB102K50 C 692 CKSRYB102K50 C 693 CKSRYB102K50

C 694 CKSRYB102K50 C 695 CKSRYB102K50 C 696 CKSRYB102K50 C 697 CKSRYB102K50 C 701 CKSRYB103K50

C 703 CCSRCH221J50 C 704 CCSRCH221J50 C 801 CKSRYB102K50 C 802 CEJQ1R0M50 C 803 CKSRYB102K50

C 804 2200µF/16V CCH1186 C 805 CKSQYB473K50 C 806 CKSRYB102K50 C 807 CEJQ1R0M50 C 808 CKSRYB102K50

C 814 CEJQ1R0M50 C 815 CEJQ1R0M50 C 816 CKSRYB103K50 C 817 100µF/10V CCH1402 C 824 CKSRYB472K50

C 825 100µF/10V CCH1402 C 829 CKSRYB103K50 C 831 CKSRYB103K50 C 861 CEJQ101M6R3 C 866 CEJQ100M16

C 867 CEJQ100M16 C 870 CKSRYB103K50 C 871 CKSRYB103K50 C 872 2200µF/16V CCH1186 C 873 CKSRYB105K10

C 883 CKSRYB103K50

C

Unit Number:EWM1031 Unit Name:Deck Unit

A

B

C

D

E

C 568 CKSRYB105K10 C 569 CKSRYB333K16 C 570 CKSRYB103K50 C 571 CKSRYB682K50 C 572 CEJQ101M10

C 573 CKSRYB392K50 C 574 CKSRYB334K10 C 575 CKSRYB102K50 C 585 CKSRYB223K50 C 586 CKSRYB223K50

C 601 CKSRYB102K50 C 602 CKSRYB103K50 C 603 CKSRYB103K50

56

MISCELLANEOUS

IC 251 IC HA12216F IC 351 IC PA2020A Q 271 Transistor 2SC4116 D 352 Diode 1SS355 VR301 Semi-ﬁxed 33kΩ(B) CCP1280

VR302 Semi-ﬁxed 33kΩ(B) CCP1280

RESISTORS

R 255 RS1/16S181J R 256 RS1/16S181J R 257 RS1/16S183J

KEX-M8727ZT/UC

F

33

7

8

1234

Circuit Symbol and No. Part NamePart No.

R 258 RS1/16S183J R 259 RS1/16S133J

A

R 260 RS1/16S133J R 261 RS1/16S274J R 262 RS1/16S274J R 271 RS1/16S183J R 272 RS1/8S0R0J

R 273 RS1/8S0R0J R 274 RS1/16S0R0J R 275 RS1/16S473J R 276 RS1/16S104J R 277 RS1/16S224J

R 278 RS1/16S104J

B

R 281 RS1/8S0R0J R 282 RS1/8S0R0J R 283 RS1/8S0R0J R 284 RS1/8S0R0J

R 285 RS1/16S0R0J R 287 RS1/16S0R0J R 291 RS1/8S0R0J R 292 RS1/10S0R0J R 293 RS1/10S0R0J

R 294 RS1/10S0R0J R 321 RS1/8S0R0J R 322 RS1/8S0R0J

C

R 351 RS1/16S102J R 352 RS1/16S102J

R 353 RS1/16S102J R 354 RS1/16S102J R 355 RS1/16S274J R 362 RS1/8S301J R 373 RS1/16S0R0J

Circuit Symbol and No. Part NamePart No.

C 405 CKSRYB333K16

D

Unit Number:EWM1041 Unit Name:Sensor Unit

Q 101 Photo-reﬂector EGN1004 L 101 Inductor CTF1546 L 102 Inductor CTF1546 S 101 Switch(LOAD) ESG1007 S 102 Switch(MODE) ESG1007

S 103 Switch(70µS) ESG1007

B

Unit Number:CWS1337 Unit Name:Keyboard Unit

MISCELLANEOUS

S 901 Encoder(TUNE) CSD1083 S 902 Encoder(PWR•VOL) CSD1080 IL 901 Lamp 8V 85mA CEL1748 IL 902 Lamp 8V 85mA CEL1748 IL 903 Lamp 8V 85mA CEL1748

IL 904 Lamp 8V 85mA CEL1748 IL 905 Lamp 8V 85mA CEL1748 IL 906 Lamp 8V 85mA CEL1748

RESISTORS

R 374 RS1/8S0R0J R 375 RS1/8S0R0J R 401 RS1/16S153J R 402 RS1/16S332J R 403 RS1/16S911J

D

R 404 RS1/16S274J

CAPACITORS

C 251 CKSRYB391K50 C 252 CKSRYB391K50 C 253 CKSRYB391K50 C 254 CKSRYB391K50 C 255 CKSRYB103K50

C 256 CKSRYB103K50 C 271 1µF/50V ECH0002

E

C 272 CKSRYB104K16 C 301 CKSRYB104K16 C 302 CKSRYB104K16

C 309 CKSRYB104K16 C 310 CKSRYB104K16 C 351 CKSQYB224K25 C 352 CKSRYB392K50 C 353 CKSRYB103K50

C 354 CKSRYB103K50 C 355 CKSQYB104K50 C 356 CKSRYB103K50 C 401 CKSRYB392K50

F

C 402 CKSRYB334K10

R 905 RS1/16S0R0J R 906 RS1/16S0R0J R 907 RS1/16S0R0J R 908 RS1/16S0R0J R 909 RS1/16S3R3J

R 910 RS1/16S5R6J R 911 RS1/16S3R3J R 912 RS1/16S3R3J R 913 RS1/16S5R6J R 914 RS1/16S3R3J

Miscellaneous Parts List

M 1 Motor Unit(MAIN) EXA1618 M 2 Motor Unit(SUB) EXA1623 HD1 Head Assy EXA1594

C 403 CKSRYB223K25 C 404 CKSRYB103K50

34

1234

KEX-M8727ZT/UC

5678

6. ADJUSTMENT

6.1 CONNECTION DIAGRAM

1. RSE (option) system

KEX-M8727ZT/UC

A

H/U

20P

Bullet connector

(To DC Regulated Power Supply)

AMP(M/L)

25P

GGD1240

Bullet connector SP Line

SDVD(PANA)

16P

12P20P

GGD1169

FR+ FR-

GGD1305

AUI+

AUI-

GGD1306

EMV(DENSO)

6P 10P 14P 8P

6P 10P 14P12P20P

Bullet connector

(To DC Regulated Power Supply)

Bullet connector

(To DC Regulated Power Supply)

NAVI ECU(DENSO)

10P18P

18P 10P

24P

10P 32P

8P

B

GGD1239

C

CDX-M8027ZT/E

12P

Rear Display(F-TEN)

20P

MCD

32P

16P

GGD1304

24P 10P 32P

RSE-ECU

20P 12P 16P

20P

Bullet connector

(To DC Regulated Power Supply)

24P

AV Unit

Bullet connector

(To DC Regulated Power Supply)

D

12P

E

16P

F

56

KEX-M8727ZT/UC

7

8

35

1234

2. RSA (option) system

A

KEX-M8727ZT/UC

H/U

20P

B

Bullet connector

(To DC Regulated Power Supply)

25P

C

GGD1240

Bullet connector SP Line

12P20P

AMP(M/L)

6P 10P 14P 8P

6P

GGD1302

16P

Bullet connector

(To DC Regulated Power Supply)

16P

GGD1169

EMV(DENSO)

10P 14P12P20P

Bullet connector

(To DC Regulated Power Supply)

NAVI ECU(DENSO)

8P

GGD1239

10P18P

FR+ FR-

AUI+AUI-

D

18P 10P

RSA Controller

24P

CDX-M8027ZT/E

MCD

E

32P

*Please connect only one Multi CD at the same time *MCD does not operate if RSA controller is not connected.

24P

20P

F

36

1234

KEX-M8727ZT/UC

5678

3. Standard system

KEX-M8727ZT/UC

A

H/U

20P

Bullet connector

(To DC Regulated Power Supply)

AMP(M/L)

12P20P

12P

25P

GGD1240

Bullet connector SP Line

GGD1304

16P

GGD1169

EMV(DENSO)

6P 10P 14P 8P

10P 14P20P

GGD1300

(To DC Regulated Power Supply)

Bullet connector

(To DC Regulated Power Supply)

NAVI ECU(DENSO)

8P

B

GGD1239

Bullet connector

C

10P18P

CDX-M8027ZT/E

FR+ FR-

AUI+AUI-

MCD

32P

*Please connect only one Multi CD at the same time

18P 10P

D

Bullet connector

(To DC Regulated Power Supply)

12P

E

24P

56

KEX-M8727ZT/UC

F

7

8

37

1234

4. RSE (option) system

A

KEX-M8527ZT/UC

H/U

AMP

12P20P

GM-8027ZT/E

16P

6P 10P 14P 8P

6P 10P 14P12P20P

GGD1305

Bullet connector

(To DC Regulated Power Supply)

20P

B

Bullet connector

(To DC Regulated Power Supply)

25P

EMV(DENSO)

8P

GGD1239

Bullet connector

(To DC Regulated Power Supply)

NAVI ECU(DENSO)

10P18P

25P

C

GGD1240

Bullet connector SP Line

16P

GGD1169

FR+ FR-

AUI+

18P 10P

AUI-

GGD1306

SDVD(PANA)

20P

D

20P

24P

24P 10P 32P

10P 32P

RSE-ECU

20P 12P 16P

CDX-M8027ZT/E

MCD

20P

12P

32P

Bullet connector

(To DC Regulated Power Supply)

12P

E

Rear Display(F-TEN)

32P

16P

GGD1304

24P

AV Unit

16P

F

38

1234

KEX-M8727ZT/UC

Bullet connector

(To DC Regulated Power Supply)

5678

5. RSA (option) system

KEX-M8527ZT/UC

H/U

20P

12P20P

20P

Bullet connector

(To DC Regulated Power Supply)

AMP

25P

GGD1240

Bullet connector SP Line

GGD1302

GM-8027ZT/E

16P

GGD1169

6P

EMV(DENSO)

6P 10P 14P 8P

10P 14P12P20P

Bullet connector

(To DC Regulated Power Supply)

Bullet connector

(To DC Regulated Power Supply)

NAVI ECU(DENSO)

10P18P

8P

GGD1239

A

B

C

CDX-M8027ZT/E

FR+ FR-

AUI+AUI-

MCD

32P

*Please connect only one Multi CD at the same time *MCD does not operate if RSA controller is not connected.

18P 10P

D

RSA Controller

24P

E

20P

56

KEX-M8727ZT/UC

F

7

8

39

1234

6. Standard system

A

KEX-M8527ZT/UC

H/U

20P

12P20P

6P 10P 14P 8P

20P

GGD1304

GGD1300

B

C

Bullet connector

(To DC Regulated Power Supply)

GM-8027ZT/E

AMP

25P

GGD1240

Bullet connector SP Line

16P

Bullet connector

(To DC Regulated Power Supply)

16P

GGD1169

EMV(DENSO)

10P 14P12P20P

Bullet connector

(To DC Regulated Power Supply)

NAVI ECU(DENSO)

8P

GGD1239

10P18P

FR+ FR-

AUI+AUI-

D

CDX-M8027ZT/E

18P 10P

Bullet connector

(To DC Regulated Power Supply)

12P

MCD

32P

E

32P

*Please connect only one Multi CD at the same time

24P

F

40

1234

KEX-M8727ZT/UC

5678

6.2 TUNER/AUDIO ADJUSTMENT

MAIN UNIT

Extention Cord GGD1121

CN353

DECK UNIT

VR302

VR301

Pin2 Pin3

CN251

L-CH

R-CH

mV Meter

DOLBY B NR ADJUSTMENT

No. Test Tape Adjustment Point Adjustment Method

(Switch Position)

1 NCT-150 VR301(Lch),VR302(Rch)

(400Hz,200nwb/m)

mV Meter : –8.24dBs(300mV)±1dB

(DOLBY NR Switch : OFF)

A

B

C

D

E

F

56

KEX-M8727ZT/UC

7

8

41

1234

A

AM NOISE CANCELER ADJUSTMENT

Connection:

SSG

2-signal pad AM dummy

B

Pulse generator (equivalent to HP8011A)

KEX-M8727ZT/UC KEX-M8527ZT/UC

Output

Noise meter

Setting of the pulse generator (setting of superimposed pulse)

4Vp-p(EMF)

C

50us

5ms

Pulse width :50usec

Pulse intervals :5msec

Pulse voltage :4Vp-

p

Adjustment:

1. Setting of SSG Receiving frequency : 1,000 kHz Percentage modulation : 30% Modulation frequency : 400 Hz Antenna input : 74 dBuV (EMF)

2. Tune a RADIO to the "1,000kHz" with 1' condition.

D

3. Mix signal with the above-mentioned pulse and SSG' moduration OFF.

4. Variable resistance adjust noise level to a minimam. Adjustment point : VR561 (Main Unit)

E

F

42

KEX-M8727ZT/UC

1234

5678

6.3 SELF-DIAGNOSTIC FUNCTION

1.To Service Check

DISPLAY

A

Display

Frame of display adjustment

Audio mode

A

B

1. Press [AUDIO] key of EMV .

2. Press [DISPLAY] key of EMV .

3. The position of A and B is order of pushed 6 times in A,B,A,B,A and B.

->Service Check screen is displayed.

2.Service Check

Service Check

EMV

DSP AMP

CD-CH

LAN Monitor

C

D

Audio H/U

The name of each apparatus, such as an Audio H/U, is displayed.

E

->As it is, it waits for a while. (In general less than 1 minute)

KEX-M8727ZT/UC

56

F

43

7

8

1234

A

B

Service Check

EMV

DSP AMP

CD-CH

LAN Monitor

OK

NCON

Audio H/U

CHEK

When displayed as [CHEK] or [EXCH], details will be displayed if the portion is touched.

It changes on the screen which displays the abnormalities on communication.

The diagnostic result of each model is displayed. Results are [OK], [NCON],[CHEK], and [EXCH]. OK : No error code NCON : EMV has judged it as the thing without connection. (Disconnection being possible if there is actually connection) CHEK : An error code indicating that diagnosis is judged to be necessary is entered.

C

EXCH : An error code indicating that exchange is judged to be necessary is entered.

Memory

61-40

Audio H/U

Occurred Date/Time

The detected abnormalities (Diagnosis code) are displayed.

At this example, it is 40 (abnormalities in mechanism or media) of 61 (= cassette).

Unit Check Mode

Current

D

E

3.How to exit from the diagnostic test mode

ACC-OFF

F

44

1234

KEX-M8727ZT/UC

5678

Diagnosis details

Gyroscope abnormal

GPS receiver abnormal

RTC abnormal

SS section abnormal

No Time updating

TCXO abnormal

PLL lock abnormal

GPS antenna abnormal

GPS antenna power supply abnormal

Map disc reading abnormal

SPD signal abnormal

Player abnormal

High temperature abnormal

Antenna power supply abnormal

1011121314151640414243444541454647

code

Diagnosis

Radio wave beacon - no antenna connected

Optical beacon - no antenna connected

No FM antenna connected

FM receiver abnormal

Radio wave beacon abnormal

Optical beacon abnormal

Voice-control activation SW abnormal

Voice-control Microphone abnormal

Multi-CD-CH (optical cable) abnormal

Multi-CD-CH (optical cable) not connected

Multi-CD-CH (CarNet) abnormal

Multi-CD-CH (CarNet) not connected

HIT64 communication not connected

404140414243505152535455565710111213404110

4B

4C

4A

HIT64 communication abnormal

HIT64 BRQ disconnection

HIT64 BRQ short-circuit

HIT64 disconnection

CarNet communication not connected

CarNet communication abnormal

CarNet periodical communication abnormal

Video circuit abnormal

Back light abnormal (with no current)

Back light abnormal (with excessive current)

Panel open/close mechanical operation abnormal

Front seat monitor abnormal

Heater abnormal

Panel SW abnormal

Touch SW failure

TEL ECU abnormal

Communication serial lines abnormal

Wireless PWR lines abnormal

11

104041

A

B

58H

80H

Logical

address

Logical

Navigation

/GPS

address name

Diagnosis details

Antenna power supply abnormal

Tuner power supply abnormal

AM tuner abnormal

FM tuner abnormal

SW tuner abnormal

TV tuner PLL unlocked

FRONTEND abnormal

TV divergence shifting error

40H

TV – no reception

VNR screen error

AM tuner PLL unlocked

FM tuner PLL unlocked

No antenna connected

1011404142434445101140414243444546104041424344101112404142434445464748505152101112404142434445464748505152

code

Diagnosis

60H

Logical

address

83H

54H

FM multiplex

No antenna connected

82H

84H

5BH

9AH

(VICS), radio

wave beacon,

beacon, optical

beacon, FM

multiplex (data),

and FM

multiplex tuner

Antenna power supply abnormal

SEL +B current – small

SEL +B current – large

Belt broken

Mechanical failure or cassette broken

61H

02H

85H

Voice

control

Extended

communi

-cation

EJECT failure

TAPE jamming

Dirty head

Mech power supply abnormal

CD Mech abnormal

CD loading/unloading abnormal

43H

62H

CD lead-in abnormal

No disc loaded

Incorrect disc

Disc unreadable

CD-ROM abnormal

CD abnormal

63H

32H

34H

Information

display/front

monitors

EJECT abnormal

Scratches or non-recorded side

CD high temperature detected

Excessive current detected

Tray IN/OUT abnormal

Elevator abnormal

21H

23H

SW, Audio

SW, SW

Clamp abnormal

MD mech abnormal

MD IN/OUT abnormal

MD lead-in abnormal

No disc loaded

64H

65H

24H

25H

57H

TEL ECU,

shifting,

Command

SW

Incorrect disc

Disc unreadable

MD-ROM abnormal

68H

TEL

MD abnormal

EJECT error

Scratches or non-recorded side

Diagnosis code table

Logical

Radio

address name

TV tuner

Cassette

tape

CD

CD-P

CD-CH

MD

MD-CH

C

MD high temperature detected

Excessive current detected

Tray IN/OUT abnormal

Elevator abnormal

Clamp abnormal

D

E

Diagnosis details

No diagnosis

Abnormal reset

Abnormal +B

Abnormal ACC

Abnormal MUTE

Fuse broken

Microcomputer - abnormal

ROM - abnormal

RAM - abnormal

Bus - abnormal

F-ROM - abnormal

000110111213202122232425262728

code

Diagnosis

01H

Logical

address

Logical

Communi

-cation

control

address name

56

Voice output controller abnormal

V-RAM - abnormal

Gate allay abnormal

Internal power supply abnormal

Paint controller abnormal

Backup memory abnormal

292A30

Sync signal abnormal (input)

Sync signal abnormal (output)

ECU not connected

Transmission abnormal

Connecting confirmation: abnormal

Connecting confirmation: no response

Registered device data missing

(History of registered devices)

Master unavailable

31

D0D1D2D4D5D6D7D8D9

KEX-M8727ZT/UC

Connecting confirmation: abnormal

Connecting confirmation: no response

Last mode abnormal

Command/order: no response

Mode status abnormal

Transmission fault

Master reset

Slave reset

Master abnormal

Registration completion

acknowledgement error

E0E1E2E3E4

DF

DE

DB

DC

DA

DD

7

Voice processor ON abnormal

ON/OFF command or parameter abnormal

Registration command transmission

Multiple frames intermit.

Diagnosis - no response

FF

F

45

8

1234

-

e

.

-

)

-

)

-

Removing the Cassette Mechanism Module (Fig.1)

e

the Cassette Mechanis

odule

-

)

dicated.

e

the Ma

3

s

7. GENERAL INFORMATION

7.1 DIAGNOSIS

7.1.1 DISASSEMBLY

A

Removing the Upper Case (not shown

1. Remove the Upper Case

Remove the four screws and then remov

B

Removing the Grille Assy (Fig.1)

Remove the two screws and then remov the Grille Assy.

m M

Cassette Mechanism Module

.

1

C

2

Grille Assy

1

2

Fig.1

Removing the Front Frame (Fig.2

the Front Frame.

D

1

Front Frame

Fig.2

Removing the Main Unit (Fig.3

1

Remove the two screw

E

Straight the tabs at two locations in

2

3

1

Remove the two screws and then remov

in Unit.

F

46

1234

3

2

Main Unit

Fig.3

KEX-M8727ZT/UC

5678

7.1.2 CONNECTOR FUNCTION DESCRIPTION

A

SUB ANTENNA

B

MAIN ANTENNA

MUTE

(BU)

L- R-

L+

TX-

(ACC)

TX+

R+

NC

SGND

(GND)

TX-

NC

TX+

STSW2

RMUTE

RSA L-

STSW1

SWGND

RSA R-

RSA L+

NC

SGND

RSA R+

NCNCNC

NC

L+

(SGND)

L-

GND

R+ R-

MUTE

NC

NC NC

TX+ TX-

NC NC

ILL+

(AMP+)

ILL-

ANT

BU ACC

C

D

56

KEX-M8727ZT/UC

E

F

47

7

8

1234

7.1.3 TROUBLESHOOTING

A

B

C

Is B-UP ON?

BSENS terminal Pin 75(IC601)

YES

Is ACC ON?

ASENS terminal Pin 73(IC601)

YES

Does illumination come on?

YES

Is PWR-ON enabled?

YES

Is voice output?

YES

NO

Check +B

(Check a power supply.)

Turn on ACC

(Check a power supply.)

Check illumination circuit?

ISENS terminal Pin 2(IC601)

Check PWRSW terminal

power Pin 69(IC601)

Is amplifier connected correctly?

Connect amp correctly

NO

Is any sound of FM, AM and

YES

TAPE (internal sources) output?

YES

Are FM and AM sounds output?

YES

NO

Check the following terminals

NO

SYSPWR Pin 1(IC601)

sysmute2 Pin 5(IC601) sysmute1 Pin 6(IC601)

Check the following terminals FMPW Pin 43(IC601) AMPW Pin 44(IC601)

Is TAPE sound output?

YES

IsTAPE mechanical unit operated normally?

YES

Check the following terminals

D

Is VOL adjustment enabled?

YES

Normal operation

Check encoder input.

NO

ENC1- Pin 65(IC601)

SYSPWR Pin1(IC601)

NO

Recheck hardware

Check the following terminals CM Pin 89(IC601) SC1 Pin 88(IC601) SC2 Pin 87(IC601)

E

F

48

KEX-M8727ZT/UC

1234

7.2 IC

5678

- Pin Functions(PD5840A)

Pin No. Pin Name I/O Function and Operation

1 SYSPWR O S 2 isens I 3NC 4 LAMP 5,6 SYSMUTE2,1 O 7 RSEMUTE O 8 BYTE I 9 CNVSS 10 LANMUTE O 11 SWVDD O 12 reset I 13 XOUT O 14 VSS 15 XIN 16 VDD 17 nmi I 18 rck I 19 NC I 20 INH2 Selector output for RSE 21 RX2 22 IPPW O 23 SEL2a O Selector change for RSE 24 NC Not used 25 SEL2b 26 27 SEL1a O 28 SEL1b O 29 RX1 30 TX 31 PDO O 32 PDI I 33 pck O 34 ANT1 O Not used 35-40 41 ANT0 O 42 NC 43 FMPW 44 AMPW O AM power output 45 NC 46 drst O 47,48 NC 49 RDT 50 rdslk I 51 LOCL O 52 PCE1 O 53 PCE2 O 54,55 NC I 56 FMSD I FM signal input 57 st 58 ROMDT ROM correction data 59 ROMCLK O

INH1

NC

I

O

I O

O

I

I/O

ystem power control Illumination sense input Not used Lamp power supply control System mute output RSE mute Vss joint GND

AVC-LAN mute SWVDD

Reset input

Crystal oscillating element connection pin

GND Crystal oscillating element connection pin

Power supply

VDD joint RDS clock input Not used

BUS BUS driver power supply output

Selector change for RSE Selector output for AMP output

Selector change for AMP output Selector change for AMP output BUS BUS PLL data output Pll data input PLL clock output

Not used

Not used Not used

FM power output

Not used RDS decoder IC reset

Not used RDS data input RDS LK signal input

Local L output PLL chip enable output EEPROM chip enable output

Not used

Stereo input

ROM correction clock

A

B

C

D

E

56

KEX-M8727ZT/UC

F

49

7

8

1234

30

31

50

51

80

81

100

1

Pin No. Pin Name I/O Function and Operation 60 ROMCS O

A

61 TEST I 62 VCC 63 ENC1+ I 64 VSS 65 ENC1- I 66–68 KST0-2 O 69 power I 70-72 KDT0-2

I 73 asens I 74 csej I 75 bsens I 76 KDT3 77 ENC2+

B

78 ENC279 MS 80 fR 81 PLAY 82 mtl 83 NR 84 CSLOAD 85 POS 86 ES 87 SC2 88 SC1 89 CM

C

90 stby 91,92 NC

I

O

I

O

I

O

93 SL

ROM correction chip select output Test terminal 5V VOL encoder input+ GND VOL encoder inputKey strobe POWER key input Key data input ACC power sense input Cassette eject sense input Back up power sense input Key data input AUD encoder input + AUD encoder input Music sense input Head forward/reverse select output MS gain select output Tape loading detect input NR ON/OFF output

Tape loading detect input Position sense input Tape end sense input Sub motor control output Sub motor control output Capstan motor control output Stand-by output Not used Signal level

94 ILL- Illumination 95 STSW2 96 AVSS 97 STSW1 98 VREF

Stearing SW2 A/D GND Stearing SW1 A/D converter reference voltage input

-

99 AVCC Analog power supply 100 ANTB

O

Antenna control

D

E

F

*PD5840A

IC's marked by * are MOS type. Be careful in handling them because they are very liable to be damaged by electrostatic induction.

*S-81256SGUP-DIM

REF

VOL

123

GND

VIN

VOUT

50

1234

KEX-M8727ZT/UC

5678

- FM/AM Tuner Unit

FM/AM 1ST IF 10.7MHz

AMRF

AMANT

28

ATT

ANT ADJ

FMANT

27 26

RFGND

ATT

LOCH

23

FMRF

T51 Q51 CF51

IMG ADJ

RF ADJ

LOCL

CF52 CF53

IC1

MIXER, IF AMP, DET.

CF202

AM 2ND IF

X901

450kHz

10.25MHz

AMPNS

WC

222510 14 12 15 16 81 32 34

177

VDD

VCC

MPXREF 41kHz

AMDET

EEPROM

FMLOCL

CREQ

DI/DO

19

IC 3

DGND 11

CE2CKCE1

IC 2 FM MPX

SDBWSLFMSD

L ch

6

R ch

5

AMIN

20

COMP

21

LDET

18

STIND

AMDET

NL1

NL2

1

924

A

No. Symbol I/O Explain

1 STIND O stereo

"Low" when the FM stereo signals are received.

indicator To be pulled up to the "VDD" at 47kΩ.

2 FMSD FM station "High" when signals are received. To be pulled up to the "VDD" at 47kΩ

O

detector Meanwhile, 10kΩ should be used when taking diver FIX trigger from here

and "High: 0.9VDD or more" and "Low: 250mV or less". (Should satisfy the diver IC specifications)

3 NL1 O noise level-1

"High" when noise is received. Output for the RDS. GND at 47kΩ//1,800pF.

4 NL2 O noise level-2 "High" when noise is received. Output for the RDS. GND at 36kΩ//330pF. 5 Rch O R channel

FM stereo "R-ch" signal output or AM audio output.

output Add the specified de-emphasis constant.

6 Lch O L channel

output

7 WC write control

FM stereo "L-ch" signal output or AM audio output. Add the specified de-emphasis constant.

EEPROM write control. Writing permissible at "Low". Normally open. 8 SDBW O SD bandwidth SD bandwidth signal output. For detection of detuning data for the RDS. 9 AMDET O AM detector

AM detector output. r out < 100Ω

output

10 VDD power

supply

Power supply pin for the digital section.

DC 5V +/- 0.25V. Be careful about overlapping noise in the logic section.

11 DGND digital ground Grounding for the digital section. 12 CE2 I chip enable-2

EEPROM chip enable. Active a "Low"

To be pulled up to the "VDD" at 47kΩ

13 SL I/O signal level

Received FM/AM signal level (strength) output.

Connect the specified load resistor and capacitor (10k Ω+ 39k Ω//4,700pF)

14 DI/DO I/O data input/

data output 15 CK I clock 16 CE1 I chip enable-1 17 AMPNS AM PNS IF signal

O

18 LDET O lock detector

Data input/Data output To be pulled up to the "VDD" at 47kΩ Clock input To be pulled up to the "VDD" at 47kΩ AF·RF chip enable. Active at "High"To be grounded at 47kΩ IF signal output for AM PNS circuit. Active at "Low". To be pulled up to the "VDD" at 47kΩ

19 CREQ I current request Active at "Low". To be grounded at 47kΩ 20 AMINI AM audio input

The frequency response and the level are set by connecting an external CR network with terminal AMIN as terminal AMDET. r in = 50kΩ

21 COMP O composite signal 22 VCC power supply

FM composite signal output. r out < 100Ω

Analog section power supply pin.DC 8.4V +/- 0.3V 23 LOCH I local high FM local high pin. When seeking local high, apply 5V together with "LOCL". 24 FMLOCL I FM local low FM local low pin. When seeking local low, apply 5V to the base of the NPN

transistor with which the specified resistor is being connected to the emitter.

Keep it open in case of ordinary marketed models. 25 LOCL I local low FM/AM local low pin. When seeking local low, apply 5V to the base of the

NPN transistor.

Since this pin is exclusive for AM when the FMLOCL is in use,

do not drive it under FM.

26 RFGND RF ground Grounding for the antenna section. 27 FMANT I FM antenna input FM antenna input. 75Ω. Surge absorber (DSP-201M-S00B) is necessary. 28 AMANT I AM antenna input AM antenna input. High impedance.

Connect to the antenna through an L (LAU type) of 4.7µH.To cope with the

power transmission line hums, insert a series circuit consisting of an L

(a coil of about 100mH) + R (a resistor of 470 Ω to 2.2kΩ) between the GND.

B

C

D

E

F

56

KEX-M8727ZT/UC

7

8

51

1234

7.3 EXPLANATION

7.3.1 SYSTEM BLOCK DIAGRAM

A

1. Standard system

+B, ACC AVC-LAN

+B, ACC

SPEAKER

NAVI

RGB

ECU

B

OTHER MAKERS

EMV

OTHER MAKERS

AVC-LAN

1DIN

HEAD UNIT

L/R

AVC-LAN

L/R

AVC-LAN

AMPLIFIER

PIONEER or

OTHER MAKERS

CD-CH

2. RSA (option) system

C

+B, ACC

SPEAKER

NAVI

ECU

OTHER MAKERS

RGB

EMV

OTHER MAKERS

1DIN

HEAD UNIT

L/R

AVC-LAN

AMPLIFIER

PIONEER or

OTHER MAKERS

L/R

AVC-LAN

D

L/R

RSA

L/R

AVC-LAN

CD-CH

E

F

52

1234

KEX-M8727ZT/UC

5678

3. RSE (option) system

NAVI

RGB

ECU

OTHER MAKERS

AVC-LAN

EMV

OTHER MAKERS

NTSC

+B, ACC

1DIN

HEAD UNIT

L/R

AVC-LAN

AMPLIFIER

PIONEER or

OTHER MAKERS

A

SPEAKER

B

DVD-P

OTHER

MAKERS

L/R

AVC-LAN

NTSC

L/R

EXTENSION

UNIT

OTHER

MAKERS

L/R

HEAD

PHONE

RSE ECU

OTHER

MAKERS

NTSC

REAR

DISPLAY

OTHER

MAKERS

REMOTE

CONTROLLER

L/R

AVC-LAN

INFRARED

AVC-LAN

HEAD

PHONE

L/R

CD-CH

PIONEER

C

D

56

KEX-M8727ZT/UC

E

F

53

7

8

1234

7.3.2 OPERATIONAL FLOW CHART

A

Power ON

VCC=5V

Pin 62

B

VDD=5V

Pin 16

bsens

Pin 75

BSENS=L

asens

C

Pin 73

ASENS=L

SWVDD←H Pin 11

IPPW←H Pin 22

D

SYSPWR←H Pin 1

Source keys operative

Source ON

E

YES

Completes power-on operation. (After that, proceed to each source operation)

F

54

1234

KEX-M8727ZT/UC

5678

7.4 CLEANING

Before shipping out the product, be sure to clean the following portions by using the prescribed cleaning tools:

Portions to be cleaned Cleaning tools Cassette heads

Pinch rollers Capstans

Cleaning paper : GED-008

A

B

C

D

E

56

KEX-M8727ZT/UC

F

55

7

8

8. OPERATIONS

- KEX-M8727ZT/UC, KEX-M8527ZT/UC

-RADIO

TRAFFIC INFORMATION

POWER ON/OFF, VOLUME

-TAPE

POWER ON/OFF, VOLUME

-CD,DVD

AM

SEEK UP/DOWN

EJECT

AUTO PROGRAM SEARCH

FM

MANUAL TUNING

TAPE

DIRECTION CHANGE

CD,DVD

POWER ON/OFF, VOLUME

TRACK SELECT

DISC SELECT

PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan

PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936

PIONEER CORPORATION 2002

K-ZZS.AUG. 2002 Printed in Japan

Pioneer GX-470 Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SAFETY INFORMATION

CONTENTS

1. SPECIFICATIONS

2. EXPLODED VIEWS AND PARTS LIST

2.1 EXTERIOR

2.2 CASSETTE MECHANISM MODULE

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)

3.3 KEYBOARD UNIT

3.4 CASSETTE MECHANISM MODULE

4. PCB CONNECTION DIAGRAM

4.1 MAIN UNIT

4.2 KEYBOARD UNIT

4.3 CASSETTE MECHANISM MODULE

5. ELECTRICAL PARTS LIST

6. ADJUSTMENT

6.1 CONNECTION DIAGRAM

6.2 TUNER/AUDIO ADJUSTMENT

6.3 SELF-DIAGNOSTIC FUNCTION

7. GENERAL INFORMATION

7.1 DIAGNOSIS

7.1.1 DISASSEMBLY

7.1.2 CONNECTOR FUNCTION DESCRIPTION

7.1.3 TROUBLESHOOTING

7.2 IC

7.3 EXPLANATION

7.3.1 SYSTEM BLOCK DIAGRAM

7.3.2 OPERATIONAL FLOW CHART

7.4 CLEANING

8. OPERATIONS