CRT3321 KEHM8547

User Manual: KEHM8547

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TOYOTA

KEX-M8547

ZT/EW

ORDER NO.

CRT3321
KEX-M8547ZT/EW

RECEIVER ASSY, RADIO

KEX-M8547ZT

/EW

KEX-M8547ZT-91/EW
KEX-M8647ZT/EW
KEX-M8647ZT-91/EW
VEHICLE

DESTINATION

PRODUCED
AFTER

OEM PARTS No.

ID No.

PIONEER MODEL No.

LAND CRUISER PRADO

EUROPE

August 2004

86120-60461

P3745

KEX-M8547ZT/EW

LAND CRUISER PRADO

EUROPE

August 2004

86120-60461

P3745

KEX-M8547ZT-91/EW

LAND CRUISER PRADO

EUROPE

August 2004

86120-60451

P3746

KEX-M8647ZT/EW

LAND CRUISER PRADO

EUROPE

August 2004

86120-60451

P3746

KEX-M8647ZT-91/EW

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

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 2004
K-ZZA. JULY 2004 printed in Japan

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This service manual should be used together with the following manual(s):
Model No.
A

CX-1011

Order No.
CRT2406

Mech.Module
3L

Remarks
Cassette Mech. Module : Mech. Description, Disassembly

Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.
"Dolby" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.
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.
- Supplementary model is identical to the original except for the addition of following items.

B

Description
Polyethylene Bag
Cover
Carton
Contain Box
* Air Cap

* : Non spare part
KEX-M8547ZT-91/EW
KEX-M8647ZT-91/EW
CEG1026
CEG1045(x2)
CHG4857
CHL4857(x1/4)
CHW1947

C

D

E

F

2

KEX-M8547ZT/EW
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7

8

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.

A

- Service Precaution
1. 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. When you exchange the CN473 (mentioned P.6 PART
No.11) for new part. Cut all terminals about 0.5mm
to 1mm. ( There is some possibility to touch the
terminal with under chassis because of long terminals.)

B

[ 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:
C

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.

D

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.

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.
E

F

KEX-M8547ZT/EW
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CONTENTS
SAFETY INFORMATION ..................................................................................................................................... 3
1. SPECIFICATIONS ............................................................................................................................................ 5
2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................ 6
2.1 EXTERIOR................................................................................................................................................. 6
2.2 CASSETTE MECHANISM MODULE......................................................................................................... 8
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .......................................................................................... 10
3.1 BLOCK DIAGRAM ................................................................................................................................... 10
3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE).............................................................................. 12
3.3 KEYBOARD UNIT.................................................................................................................................... 18
3.4 CASSETTE MECHANISM MODULE....................................................................................................... 20
4. PCB CONNECTION DIAGRAM ..................................................................................................................... 22
4.1 MAIN UNIT............................................................................................................................................... 22
4.2 KEYBOARD UNIT(KEX-M8547ZT/EW)................................................................................................... 26
4.3 KEYBOARD UNIT(KEX-M8647ZT/EW)................................................................................................... 27
4.4 CASSETTE MECHANISM MODULE....................................................................................................... 28
5. ELECTRICAL PARTS LIST ............................................................................................................................ 30
6. ADJUSTMENT ............................................................................................................................................... 38
6.1 JIG CONNECTION DIAGRAM................................................................................................................. 38
6.2 CASSETTE AND AUDIO ADJUSTMENT ................................................................................................ 39
6.3 SELF-DIAGNOSIS FUNCTION ............................................................................................................... 41
7. GENERAL INFORMATION ............................................................................................................................. 45
7.1 DIAGNOSIS ............................................................................................................................................. 45
7.1.1 DISASSEMBLY ..................................................................................................................................... 45
7.1.2 CONNECTOR FUNCTION DESCRIPTION .......................................................................................... 46
7.1.3 TROUBLE-SHOOTING ......................................................................................................................... 47
7.2 IC ............................................................................................................................................................. 48
7.3 EXPLANATION ........................................................................................................................................ 51
7.3.1 SYSTEM BLOCK DIAGRAM ................................................................................................................ 51
7.3.2 OPERATIONAL FLOW CHART ............................................................................................................ 52
7.4 CLEANING............................................................................................................................................... 53
8. OPERATIONS ................................................................................................................................................ 54

A

B

C

D

E

F

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KEX-M8547ZT/EW
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1. SPECIFICATIONS
A

General
Power source . . . . . . . 13.2 V(10.5V - 16.0V allowable)
Backup current. . . . . . . . . . . . . . Less than 0.3 mA
Grounding system . . . . . . . . . . . . . . Negative type
Weight . . . . . . . . . . . . . . . . . . . . . . . . 1.18 kg
Tape player
Tape . . . . . . . . . Compact cassette tape (C-30 - C-90)
Tape speed . . 4.76 cm/sec.(+0.14 cm/sec.,-0.05 cm/sec.)

B

Wow & flutter. . . . . . . . . . . Less than 0.2 %(WRMS)
Fast forward/rewind time. . . . Less than 120 sec. for C-60
Stereo separation . . . . . . . . . . . . . More than 30 dB
Signal-to-noise ratio . . . . . . . . . . . . More than 40 dB
FM tuner
Frequency range. . . . . . . . . . . . . 87.5 - 108.0 MHz
Usable sensitivity . . . . . Less than14 dBµV (S/N: 30 dB)
Signal-to-noise ratio . . . . .More than 46 dB(54dBµ input)

C

Distortion . . . . . . . . . . . . . . . . . Less than 1.5%
Digital noise . . . . . . Less than 25 mVp-p (74 dBµ input)
MW tuner
Frequency range. . . . . . . . . . . . . . 522 - 1,611 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%

D

LW tuner
Frequency range. . . . . . . . . . . . . . . 153 - 279 kHz
Usable sensitivity . . . . Less than 40 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%
E

F

KEX-M8547ZT/EW
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2. EXPLODED VIEWS AND PARTS LIST
NOTES : • Parts marked by " * " are generally unavailable because they are not in our Master Spare Parts List.
• 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.)
"

A

2.1 EXTERIOR

B

C

D

E

F

6

KEX-M8547ZT/EW
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(1) EXTERIOR SECTION PARTS LIST
Mark No.

Description

Mark No.

Part No.

Description

Part No.

1
2
3
4
5

Screw
Screw
Upper Case
Front Frame
Insulator

BMZ30P050FTC
BSZ26P060FTC
CNB3080
CNC9684
CNM7528

26
27
28
29
30

Button
Button
Button
Button
Button

See Contrast table(2)
See Contrast table(2)
See Contrast table(2)
See Contrast table(2)
See Contrast table(2)

6
7
8
9
10

Main Unit
Screw
Screw(M3x6)
Terminal(CN502)
Connector(CN801)

See Contrast table(2)
BMZ30P060FTC
CBA1393
CKF1064
CKM1322

31
32
33
34
35

Button
Cushion
Rubber
Lighting Conductor
Lighting Conductor

See Contrast table(2)
CNM9194
CNV6939
CNV6942
CNV6943

11
12
13
14
15

Connector(CN473) *1
Connector(CN472)
Plug(CN804)
Connector(CN353)
Antenna Jack(CN501)

CKM1350
CKM1351
CKS3539
CKS3568
CKX1024

36
37
38
39
40

Lighting Conductor
Lighting Conductor
Holder
Holder
Holder

CNV6944
CNV6948
CNV6951
CNV6952
CNV6953

16
17
18
19
20

Holder
Rear Frame
FM Tuner Unit
FM/AM Tuner Unit
Holder

CNC9686
CND2155
CWE1679
CWE1773
CNC8855

41

Keyboard Unit

See Contrast table(2)

42
43
44
45

Socket(CN901)
Knob Unit(TUNE)(PWR, VOL)
Grille Unit
Door

CKS3552
CXB7979
See Contrast table(2)
CAT2293

21
22
23
24
25

Terminal(CN802)
Shield Unit
Screw
Button
Button

VNF1084
CXB9781
BPZ20P080FTC
See Contrast table(2)
See Contrast table(2)

46
47
48
49
50

Spring
Chassis Unit
Cassette Mechanism Module
Screw
Transistor(Q810, 811)

CBH1371
CXC3861
EXK4290
ISS26P055FTC
2SB1185

A

B

C

(2) CONTRAST TABLE
KEX-M8547ZT/EW and KEX-M8647ZT/EW are constructed the same except for the following:
Mark

No.

Description

KEX-M8547ZT/EW

KEX-M8647ZT/EW

6
24
25
26
27

Main Unit
Button
Button
Button
Button

CWM9554
CAC7276(TA)
CAC7278(CS-EJECT)
CAC7280(DISC)
CAC7281(TAPE)

CWM9555
CAC7277(CS-EJECT)
CAC7279(TA)
CAC7268(AM)
CAC7269(FM)

28
29
30
31
41

Button
Button
Button
Button
Keyboard Unit

CAC7282(FM)
CAC7283(AM)
CAC7284(CH, PROG, DISC)
CAC7285(SEEK, TRACK)
CWS1338

CAC7270(TAPE)
CAC7271(DISC)
CAC7272(SEEK, TRACK)
CAC7273(CH, PROG, DISC)
CWS1339

44

Grille Unit

CXC3340

CXC3341

D

E

*1 : The cautions in the case of exchanging parts (mentioned P.7 PART No.11) are indicated to P.3.

F

KEX-M8547ZT/EW
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2.2 CASSETTE MECHANISM MODULE
For grease application, refer to the service manual for CX-1011 (CRT2406).
A

B

C

C
D

E

D

F

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KEX-M8547ZT/EW
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CASSETTE MECHANISM MODULE SECTION PARTS LIST
Mark No.

Description

Mark No.

Part No.

1
2
3
4
5

Screw
Washer
Washer
Screw
Screw

BSZ20P040FTC
CBF1037
CBG1003
EBA1028
BMZ20P022FTC

6
7
8
9
10

Spring
Spring
Spring
Spring
Spring

EBH1653
EBH1642
EBH1641
EBH1626
EBH1627

11
12
13
14
15

Spring
Cord
Photo-reflector(Q101)
Arm
Lever Unit

EBH1648
EDD1024
EGN1004
ENC1526
EXA1610

16
17
18
19
20

Lever
Arm
Frame
Holder
Gear

ENC1543
ENC1532
ENC1533
ENC1547
ENC1535

21
22
23
24
25

Arm
Roller
Belt
Collar
Arm

ENC1550
ENR1040
ENT1027
ENV1508
ENV1539

26
27
28
29
30

Arm
Gear
Gear
Gear
Worm Wheel

ENV1540
ENV1569
ENV1547
ENR1044
ENV1559

31
32
33
34
35

Lever
Flywheel
Gathering PCB
Switch(S101,S102,S103)
Deck Unit

ENV1551
ENV1607
ENX1073
ESG1007
EWM1031

36
37
38
39
40

Plug(CN251)
Gathering PCB
Motor Unit(M1)
Motor
Head Assy(HD1)

CKS3540
ENX1066
EXA1618
EXM1035
EXA1594

41
42
43
44
45

Arm
Screw
Bracket
Chassis Unit
Pinch Holder Unit

ENC1537
EBA1031
ENC1559
EXA1636
EXA1608

46
47
48
49

Pinch Roller
Pinch Holder Unit
Pinch Roller
Reel Unit

ENV1518
EXA1607
ENV1518
EXA1625

Description

Part No.

50

Head Base Unit

EXA1611

51
52
53
54
55

Lever Unit
Gear Unit
Motor Unit(M2)
Washer
Spring

EXA1587
EXA1596
EXA1660
HBF-179
EBH1537

56
57
58
59
60

Worm Gear
Spring
Lever
Washer
Tube

ENV1564
EBH1672
ENC1548
YE15FTC
ENM1039

61
62
63

Spring
Spring
Sensor Unit

EBH1645
EBH1545
EWM1041

A

B

C

D

E

F

KEX-M8547ZT/EW
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3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
A

A

MAIN UNIT
FM/AM TUNER UNIT
FM/AM 1ST IF 10.7MHz
T51 Q51 CF51 CF52 CF53

AMRF
AMANT

28

ANT ADJ
FMANT
27
RFGND
26

6

FML

CF202

D

6

17

9 22 10 19 14

12 15 16

13

3

2

STIND

NL2

FMSD

SL

8

NL1

SDBW

CE1

LOCL
25

CK

FMLOC
24

CE2

RF ADJ

C

VDD
CREQ

13

Q501

IC 3
EEPROM

AM 2ND IF X901
450kHz 10.25MHz

IMG ADJ

1

18

FMRF

IC501
LA1061M

B

Q401
21

ATT

FM MAIN ANT/DIV
5

LDET

DI/DO

Q126

COMP

IC1
MIXER, IF AMP, DET.

Q146

AMDET

SUB

1
2

VCC

MAIN

L ch

IC 2 FM MPX

CN501

AMPNS

ANTENNA

MPXREF 41kHz
AMDET

ATT

1

4

ST

NL2I

NL1

MSD

MSL

SDBW

PCE1

PCE2

pck

PDIO

AUD+B
SW5V

creq

D
Q561

Q502
16 3

AM PNS

IC561
9
HA12181FP

Q181

C

1

13

SSL

19 51 47 31 32 53 33 5

6

Q566

39

SCPON

40

SSD

SDATA

92
37
38
36

Q171

35

BU

Q182

pck

AUD+B

PCE2

Q565
COMP+B

PDI

B

PDO

A

7

LOCL

1

IC562
NJM2068MD

SBSD

SBSL

FM COMP

5

SSD

SBDO

15 13 16 14 9

2
7

COMP+B

Q161

Q183

10

SCE

IC151
LA1061M

SBCE

6

SBCK

5

spck

FM SUB ANT/DIV

SBDI

Q121

SCMP

SFMANT

STUNB

1

ldet

Q141

C

currq

FM TUNER UNIT

SSL
spck
SCE
SPDI
SPDO

AUD+B

Q172

D

C DECK UNIT
CN252
1

FWD
LcH

CN353

CN251

+B

TAPE EQUALIZER

4

16

4

AUD+B

37
39
4

REV
LcH

TAPE-L

3

3

20

20

CSL

11

28 12

MTL
BU

NR

VR302

5

6

IC251
HA12216F

VREF
Q271
MTL

BU

CN254

17
2

M

1

5

MECHANISM DRIVER

2

IC351
PA2020B
1

CN255

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

7

13

CN253
1
1

MAIN
MOTOR

reset

XOUT

SUB
MOTOR

RESET
1 12
IC602
S-80835CNNB-B8U

LOAD

E

2

STBY

VDD

4

6

4

6

(1

CN256

M

KEY MATRIX
MODE
SENSE

LOAD
SWITCH SWITCH

70µs

ILLUMINATION

D SENSOR UNIT

B KEYBOARD UNIT

F

10

KEX-M8547ZT/EW
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2

3

4

C

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6

7

8

A

AUDIO SELECTOR
FOR AMP

TUNER MIXING AMP
FML

IC401

2

1

NJM2068MD

TUL

2

CSL

1

AM

Q401

Q402

Q403

6

Inh

CSL 1
12

5
RCK,RDT,rdslk,57K,drst

VDD

IC203
NJM2068MD

6

6

LANL

X251
(3.648MHz)

IC204
NJM2068MD

7 6

CN801

SYSTEM MUTE
Q204 Q205

7

+B

UNBALANCE TO BALANCE
IC303
NJM2068MD

6

3

IC304
NJM2068MD

7 6

7

11

ACC
ILL-

SYSTEM MUTE
Q304 Q305

AMP

ANT

TX+

TX-

mute

9
Inh

B

LP

L+

L10

BALANCE TO
UNBALANCE
7

1

ILL+

9 B

IC302
TC4052BF

TUL 2

11

RDS MUTE
Q404

D

UNBALANCE TO BALANCE

3

AUDIO SELECTOR
FOR RSA

AMB
20

IC252
PM4009A

RDS
DECODER

5

LANL

Q406
8

IC202
TC4052BF

20

LM

IC201
NJM2068MD

5

LANLP

6

LANLM

ANTPB

B

RSALP

Q203

RSALM

AMP+ Q882

Q252
BU

Q865 Q867
Q405

CN472
11

10

sysmt!
FMB

Q303

B
A

Q864 Q866

SW5V

CMP+
CMP-

sysmt@
AUD+B

SW1

rmut

TX1+

Q863

FMB

AMB

RSL+
RSL-

SW2

Q884

Q563

TX11

Q302
SEL2b

Q862

20

Q860

Q202

BU

SEL1b

6

5 25 28
STSW1

ON

STSW2

STSW1

97

STSW2

95

CN473
6

IPPW
TX
RX1

k

RX2

22

8

30

1

29

2

IC701
HA12187FP

6

BUSP

TX+

5

BUSM

TX-

SWVDD
SW5V

DI

Q645

VDD

PD5945A

SWVDD

ANTB

LANLP

L+

LANLM

L-

TXACC

mute

BU

+B
1

Q451

IC601

DO

7

TX+

21

SYSTEM CONTROLLER

E

C

BU

Q861
SEL2b

sysmute

43

Q564

sysmute@

FMPW

AMPW

st

NL1

FMSD

MSL

SDBW

PCE1

pck

PCE2

PDI

44

PDO

9 51 47 31 32 53 33 52 45 54 93 56 91 57 55

LOCL

NL2

rdsmute

currq

SEL1b

5R6V IC

12

AVC-LAN

IC870
S-812C56AUA-C3K

11

Q644

3

Q452

100

Q453

2

VDD

D

BU

ANT+B

Q870

AUDIO+B
Q810
BU

AUD+B

SYSPWR

1

Q817

2

ISEN

Q805

asens

73

ASEN

Q807

bsens

75

BSEN

ISENS

ILL+

ISEN
ACC

ASEN
Q806

BU

BSEN

LAN MUTE
Q801

et

LANMUTE

10

MUTE

13

4

15

7

E

RSEMT

ILL-

LAMP

XIN

XOUT

RES MUTE
Q497
RSEMUTE

94

ILLQ825

X601
(10MHz)

SW5V

CN804
KDT0-KDT3,kst0-kst@

MATRIX

BU

ILLB

INATION

13,14

Q811

5,6

Q813

CN901

UNIT

F

Q816

KEX-M8547ZT/EW
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3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)
Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or
"ELECTRICAL PARTS LIST".

A

A-a

A-a

A-a

A-b

A-b

A-a

Large size
SCH diagram

FM/AM TUNER UNIT

Guide page

A-b

RDS MUTE

Detailed page

FM TUNER UNIT

B

NC

SCE

SPDI

spck

SPDO

NC

NC

SSD

SCPON

C

SHIMUKE

NC

D

RDS DECODER

SYSTEM CONTROLLER
NC

VCC

SWVDD

sysmute
sysmute@

KISYU

MSL

SSL

f/R

E

B

CN901

C

F

CN251

A
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4

5

6

7

8

A

A-b
A

BALANCE TO UNBALANCE

MAIN UNIT

TUNER MIXING AMP

SYSTEM MUTE

B
LFM:-9.5dBs
AM:-13.4dBs
TAPE:-7.5dBs
L+
(AMP)

AUDIO SELECTOR
FOR AMP

UNBALANCE TO BALANCE

UNBALANCE TO BALANCE
AUDIO
SELECTOR
FOR RSA

R+

SYSTEM MUTE

R-

FM:-9.5dBs
AM:-13.4dBs
TAPE:-7.5dBs

C
L-

L+
(RSA)

VDD 5V

HARD MUTE

D

>

E

ILL
SENSE

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.

Decimal points for resistor
and capacitor fixed values
are expressed as :
2.2 ← 2R2
0.022 ← R022

B.UP
SENSE

FM:-3.8dBs
AM:-7.7dBs
TAPE:-1.8dBs

ACC
SENSE

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.

F

A
KEX-M8547ZT/EW
5

6

7

8

13

14

1

2

3

4

KEX-M8547ZT/EW

A-a
FM TUNER UNIT

F
E
A-a A-b

FM/AM TUNER UNIT

D
C

NC
NC
SSD
SCPON
SCE
spck
SPDI
SPDO

RDS MUTE

NC

B

A-b

1
TUNER MIXI

A
1

2

3

4

B

CN901

RDS DECODER

5

6

CN251

KISYU

sysmute@

4

sysmute

SWVDD

VCC

NC

NOT

6
7

5
6
7

KEX-M8547ZT/EW

7

8

A-a A-b

C

f/R

SPDO

SPDI

SCPON
spck

SCE

SSD

NC

NC

SYSTEM CONTROLLER

NC

SHIMUKE

3

SSL

2

MSL

5
8

A

A-b

B

C

D

E

F

A-a

15

NC

F

TUNER MIXING AMP

16

1

D

2
AUDIO
SELECTOR
FOR RSA

AUDIO SELECTOR
FOR AMP

HARD MUTE

UNBALANCE TO BALANCE

UNBALANCE TO BALANCE

C

FM:-9.5dBs
AM:-13.4dBs
TAPE:-7.5dBs

FM:-9.5dBs
AM:-13.4dBs
TAPE:-7.5dBs

SYSTEM MUTE

SYSTEM MUTE

A

A-b

3

L+
(RSA)

L-

R-

R+

L+
(AMP)

L-

MAIN UNIT

A
2

VDD 5V

E
BALANCE TO UNBALANCE

A-a A-b

1
3
4

B

1

KEX-M8547ZT/EW

4

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.

VDD 5V

2

5

3

4

5

6

6

7
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.

ACC
SENSE

FM:-3.8dBs
AM:-7.7dBs
TAPE:-1.8dBs

7

7

KEX-M8547ZT/EW

8

A-a A-b

B.UP
SENSE

>

6

Decimal points for resistor
and capacitor fixed values
are expressed as :
2.2 ← 2R2
0.022 ← R022

ILL
SENSE

HARD MUTE

5
8

A

B

C

D

E

F

A-b

17

1

2

3

4

3.3 KEYBOARD UNIT
A

B
PWR•VOL
PWR•VOL

C

R:KEX-M8647ZT/EW
L:KEX-M8547ZT/EW

D

E

A

CN804

F

B
18

KEX-M8547ZT/EW
1

2

3

4

5

6

7

8

A

B

KEYBOARD UNIT

8V 85mA

8V 85mA

8V 85mA

8V 85mA

8V 85mA

8V 85mA

B

C

S905
S907
S909

L
FM
AM
SEEK
TRACK

R
TAPE
DISC
CH
PROG
DISC

SEEK
TRACK

CH
PROG
DISC

S911

L
S906 TAPE
S908 DISC
S910 CH
PROG
DISC

R
FM
AM
SEEK
TRACK

D

S912
CH
PROG
DISC

SEEK
TRACK

E

F

B
KEX-M8547ZT/EW
5

6

7

8

19

1

2

3

4

3.4 CASSETTE MECHANISM MODULE
A

C

DECK UNIT

CN252

0R0

VR301
CCP1280
33K(B)

R022
R276

0R0

D

0R0

R285

0R0

R322

C272 R1

MUTE

CN251
E

-8.24dBs(300mV)–1dB

A

F

C
KEX-M8547ZT/EW
1

2

3

0R0

R274

R292

20

100K

C403

0R0

R272

MUTE

NC

DET(L)

NC

PBOUT(R)

R273

4

CN353

0R0

13K

910

C404 R01

R321

0R0
R294

R403

0R0

R259

R287

R293

R1

18K

120/70
NR

C309

NFI(R)

RAI(R)

DOLBY B NR

RIN(R)

R257

F/R

R33

C402
MSGV

FIN(R)
VREF

3R3K

R402

MSGV(S)

NC

DET(L)

PBOUT(L)

NC

VCC
MSOUT

20
19
18
17
16
15
14
13
12
11

0R0

15K 3900P

R1

R401 C401

R1
NC

TAI(L)

RAI(L)

30
29
28
27
26
25
24
23
22
21
MOUT(L)

EQOUT(L)

GND

270K

TEST TAPE
NCT-150
(400Hz, 200nWb/m)

R261

C255

180

MSDET

HA12216F

GND

18K

R255

HD1
HEAD ASSY
EXA1594

R01

C

C251 390P

MSI

FIN(L)

BIAS

FL

R281 0R0

IC251

RIP

TAI(R)

Fwd-L

MAOUT

Q27
2SC

R1

0R0

1/50
C252 390P

FR

MSGV(R)

RIN(L)

R271

R282 0R0

R291

NFI(L)

EQOUT(R)

270K

180
C271

Fwd-R

31
32
33
34
35
36
37
38
39
40

R256

C254 390P
R284 0R0

M-OUT(R)

Rev-R
RR

18K

C301

RL

R01

R283 0R0

R262

C256

Rev-L

R258

13K

1
2
3
4
5
6
7
8
9
10

C253 390P

C302

VR302
CCP1280
33K(B)
R260

C310

B

5

6

7

8

A

M1 MOTOR UNIT
(MAIN MOTOR)
EXA1618

CN255
R278 100K

100K

R375

0R0

MCS
RRS

300

FRS

R362

C352

ESG1007x3

RS2

C

IC351

VCC2
VCC

R22

MS2

MC
CE

NC
NC

MM

MECHANISM
DRIVER

R01

1K

1K

R353

R354

0R0

1SS355

C353

1K

1K

R351

R374

R352

M2
MOTOR UNIT
(SUB MOTOR)
EXA1660

SM1

NC

0R0

C

CN254

TAB

C351

TAB

RSB

R01

0R0

R274

SC1

D SENSOR UNIT

C354

SC2

PA2020B

RS1

LOAD
S101

RS3

R404
270K

S102

3900P

R355

47K

R01

MODE

load

C405 R033

R321

70 s
S103

MCS
0R0

B

L102
L101

mtl

220K
R373

3

RSB

RS
R277

R275

910

Q101
EGN1004

CN256
GND

270K

R022

Q271
2SC4116
R276

C403

CN253

C355

MUTE

0R0

D352

C356

D

R01

R1

E

SWITCHES:
REEL SENSE PCB
S101:LOAD SWITCH..........EJECT-PLAY
S102:MODE SWITCH............ON-OFF
S103:70 s SWITCH...............ON-OFF
The underlined indicates the switch position.

CN353

F

C D
KEX-M8547ZT/EW
5

6

7

8

21

1

2

3

4

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 diagram.
2.Viewpoint of PCB diagrams

A

MAIN UNIT
ADJ

FM TUNER UN

Capacitor

Connector

SIDE A
ANTENNA
B
Chip Part

P.C.Board

SIDE B

C

FM/AM TUNER UNIT

D

E

F

A
22

KEX-M8547ZT/EW
1

2

3

4

5

6

7

8

A

SIDE A

M TUNER UNIT
CAR HARNESS

CAR HARNESS

CAR HARNESS

B

C

D

E

F

B

FRONT

C

CN901

A

CN251

KEX-M8547ZT/EW
5

6

7

8

23

1

A

A

2

3

4

3

4

MAIN UNIT

B

C

D

E

F

A
24

KEX-M8547ZT/EW
1

2

5

6

7

8

A

SIDE B

B

C

D

E

F

A
KEX-M8547ZT/EW
5

6

7

8

25

1

2

3

4

4.2 KEYBOARD UNIT(KEX-M8547ZT/EW)

B

B

SIDE A

KEYBOARD UNIT

KEYBOARD UNIT

SIDE B

TUNE

A

B

CH
PROG
DISC
CH
PROG
DISC

TAPE

>

FM

C

CN804

>

DISC

TA

A

SEEK
TRACK

>

AM

>

SEEK
TRACK

D

PWR•VOL

EJECT

E

F

B
26

KEX-M8547ZT/EW
1

2

3

4

5

6

7

8

4.3 KEYBOARD UNIT(KEX-M8647ZT/EW)

B

SIDE A

KEYBOARD UNIT

SIDE B
A

EJECT

PWR•VOL

KEYBOARD UNIT

B

SEEK
TRACK
SEEK
TRACK

CN804

>

C

TAPE

FM

AM

A
>

CH
PROG
DISC

D

>

E

TUNE

TA

CH
PROG
DISC

DISC

>

B

F

B
KEX-M8547ZT/EW
5

6

7

8

27

1

2

3

4

4.4 CASSETTE MECHANISM MODULE
A

C

SIDE A

DECK UNIT

A

8 10 12 14 16 18 20

6

4

2

CN353

B

1

3

5

7

9 11 13 15 17 19

CN251
C321

C

C271

C

DECK UNIT

SIDE B

D

HEAD ASSY

M2

M1

IC,Q ADJ
VR302

CN254

CN255
CN253

CN252

22

21

IC253
IC251

E

Q351
Q352

1
VR301

D

CN256

F

C
28

KEX-M8547ZT/EW
1

2

3

4

5

D

6

7

8

A

SENSOR UNIT

S101
LOAD
S103
70µs

S102
MODE

L101

CN256
L102

6
5
4
3
2
1

Q101
REEL SENSE

B

C
CN253

C

D

E

F

D
KEX-M8547ZT/EW
5

6

7

8

29

1

2

3

4

5. ELECTRICAL PARTS LIST
A

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.

B

Circuit Symbol and No.

Part No.

A
Unit Number:CWM9554 (M8547ZT)
Unit Number:CWM9555 (M8647ZT)
Unit Name:Main Unit
MISCELLANEOUS

C

D

E

F

IC 151
IC 201
IC 202
IC 203
IC 204

IC
IC
IC
IC
IC

LA1061M
NJM2068MD
TC4052BF
NJM2068MD
NJM2068MD

IC 252
IC 302
IC 303
IC 304
IC 401

IC
IC
IC
IC
IC

PM4009A
TC4052BF
NJM2068MD
NJM2068MD
NJM2068MD

IC 501
IC 561
IC 562
IC 601
IC 602

IC
IC
IC
IC
IC

LA1061M
HA12181FP
NJM2068MD
PD5945A
S-80835CNNB-B8U

IC 701
IC 870
Q 121
Q 126
Q 141

IC
IC
Transistor
Transistor
Transistor

HA12187FP
S-812C56AUA-C3K
2SC3356
2SC3356
2SC3356

Q
Q
Q
Q
Q

146
161
171
172
181

Transistor
Transistor
Transistor
Transistor
Transistor

2SC3356
IMX1
2SB1260
UMX1N
DTC144EU

Q
Q
Q
Q
Q

182
183
201
202
203

Transistor
Transistor
Transistor
Transistor
Transistor

2SC4081
2SA1576
DTC144EU
DTC144EU
DTC144EU

Q
Q
Q
Q
Q

204
205
252
301
302

Transistor
Transistor
Transistor
Transistor
Transistor

FMG13
FMG13
2SC3052-12
DTC144EU
DTC144EU

Q
Q
Q
Q
Q

303
304
305
401
402

Transistor
Transistor
Transistor
Transistor
Transistor

DTC144EU
FMG13
FMG13
IMX1
FMG13

30

Part No.

Q
Q
Q
Q
Q

403
404
405
406
451

Transistor
Transistor
Transistor
Transistor
Transistor

FMG13
DTA114EU
DTC143TU
IMH3A
2SB1260

Q
Q
Q
Q
Q

452
453
497
501
502

Transistor
Transistor
Transistor
Transistor
Transistor

2SC2712
2SC2712
DTC114EU
IMX1
2SC2712

Q
Q
Q
Q
Q

561
563
564
565
566

Transistor
Transistor
Transistor
Transistor
Transistor

2SC2712
IMT2A
IMH1A
2SB1689
DTC114EU

Q
Q
Q
Q
Q

644
645
801
805
806

Transistor
Transistor
Transistor
Transistor
Transistor

DTC114EU
2SA1162
DTC114EU
DTC144TUA
DTC144TUA

Q
Q
Q
Q
Q

807
810
811
813
816

Transistor
Transistor
Transistor
Transistor
Transistor

DTC144TUA
2SB1185
2SB1185
2SA1162
IMX1

Q
Q
Q
Q
Q

817
825
860
861
862

Transistor
Transistor
Transistor
Transistor
Transistor

IMX1
2SA1162
2SA1162
DTC143EU
DTC144TUA

Q
Q
Q
Q
Q

863
864
865
866
867

Transistor
Transistor
Transistor
Transistor
Transistor

IMD3A
DTA114EU
DTA114EU
DTA114EU
DTA114EU

Q
Q
Q
D
D

870
882
884
101
102

Transistor
Transistor
Transistor
Diode
Diode

2SD1767
2SA1162
DTC124EU
CPH5512
HZU3R3(B2)

D
D
D
D
D

115
135
181
182
203

Diode
Diode
Diode
Diode
Diode

1SS355
1SS355
1SV249
1SV249
HZU4R7(B2)

D 401
D 452
D 472

Diode
Diode
Diode

1SS355
1SS355
MPG06G-6415G50

KEX-M8547ZT/EW
1

2

3

4

5

Circuit Symbol and No.

6

7

Part No.

Circuit Symbol and No.

8

Part No.

D 473
D 474

Diode
Diode

MPG06G-6415G50
1SS355

L 514
L 561

Inductor
Inductor

CTF1473
CTF1473

D
D
D
D
D

475
497
502
562
563

Diode
Diode
Diode
Diode
Diode

1SS355
UDZS20(B)
CPH5512
UDZS10(B)
UDZS10(B)

L
L
T
T
T

Inductor
Coil 350µH
Coil
Coil
Coil

LCTA100J3225
CTH1276
CTC1187
CTC1187
CTC1187

D
D
D
D
D

691
692
693
703
704

Diode
Diode
Diode
Diode
Diode

1SS355
1SS355
1SS355
UDZS18(B)
UDZS18(B)

T 146
T 501
X 251
X 601
VR561

Coil
Coil
Crystal Resonator 3.648MHz
Radiator 10.0MHz
Semi-fixed 10kΩ(B)

CTC1187
CTB1102
CSS1447
CSS1577
CCP1396

D
D
D
D
D

801
802
803
804
805

Diode
Diode
Diode
Diode
Diode

1SS355
UDZS5R6(B)
RM4LFJ10
1SS355
UDZS20(B)

FU471

Fuse 5A
FM Tuner Unit
FM/AM Tuner Unit

CEK1216
CWE1679
CWE1773

D
D
D
D
D

808
809
810
815
816

Diode
Diode
Diode
Diode
Diode

HZU8R2(B2)
HZU7R5(B3)
HZU8R2(B2)
1SS355
HZU7R5(B3)

R
R
R
R
R

13
14
15
16
101

RS1/16S100J
RS1/16S100J
RS1/16S100J
RS1/16S100J
RS1/16S102J

D
D
D
D
D

860
861
862
863
864

Diode
Diode
Diode
Diode
Diode

HZU8R2(B3)
1SS355
1SS355
DAP202K
1SS355

R
R
R
R
R

103
104
105
106
107

RS1/16S681J
RS1/16S153J
RS1/16S681J
RS1/16S681J
RS1/16S681J

D 870
D 871
D 882
ZNR501
ZNR502

Diode
Diode
Diode
Surge Protector
Surge Protector

MPG06G-6415G50
UDZS16(B)
1SS355
RCCA-201Q31UA-PI
RCCA-201Q31UA-PI

R
R
R
R
R

108
109
110
112
113

RS1/16S681J
RS1/16S102J
RS1/16S473J
RS1/16S472J
RS1/16S473J

L
L
L
L
L

32
33
101
104
115

Inductor
Inductor
Inductor
Inductor
Inductor

LCYB12NJ1608
LCYB12NJ1608
CTF1409
CTF1473
LCYBR12J1608

R
R
R
R
R

115
117
121
122
123

RS1/16S331J
RS1/16S681J
RS1/16S100J
RS1/16S222J
RS1/16S121J

L
L
L
L
L

116
122
127
135
136

Inductor
Inductor
Inductor
Inductor
Inductor

LCYBR12J1608
LCYBR10J1608
LCYBR10J1608
LCYBR12J1608
LCYBR12J1608

R
R
R
R
R

124
125
126
127
128

RS1/16S220J
RS1/16S100J
RS1/16S100J
RS1/16S222J
RS1/16S121J

L
L
L
L
L

142
147
151
152
153

Inductor
Inductor
Inductor
Inductor
Inductor

LCYBR10J1608
LCYBR10J1608
CTF1409
CTF1409
CTF1473

R
R
R
R
R

129
130
135
141
142

RS1/16S220J
RS1/16S100J
RS1/16S331J
RS1/16S100J
RS1/16S222J

L
L
L
L
L

161
251
363
491
492

Inductor
Inductor
Inductor
Inductor
Inductor

LCTA561J4532
LCTA101J2520
LFEA4R7J
CTF1578
CTF1578

R
R
R
R
R

143
144
145
146
147

RS1/16S121J
RS1/16S220J
RS1/16S100J
RS1/16S100J
RS1/16S222J

L
L
L
L
L

501
507
508
509
510

Inductor
Inductor
Inductor
Inductor
Inductor

LCTA4R7J2520
CTF1409
CTF1409
CTF1409
LCTA561J4532

R
R
R
R
R

148
149
150
151
152

RS1/16S121J
RS1/16S220J
RS1/16S100J
RS1/16S104J
RS1/16S103J

L 511
L 512
L 513

Inductor
Inductor
Inductor

CTF1473
LCTA1R0J2520
CTF1473

R 153
R 154

RS1/16S103J
RS1/16S334J

601
801
121
126
141

6

B

RESISTORS

KEX-M8547ZT/EW
5

A

7

8

C

D

E

F

31

1

Circuit Symbol and No.

2

3

Part No.

Circuit Symbol and No.

4

Part No.

R 155
R 156
R 157

RS1/16S101J
RS1/16S101J
RS1/16S104J

R 241
R 243
R 244

RS1/16S222J
RS1/10S103J
RS1/10S103J

R
R
R
R
R

158
161
162
163
164

RS1/16S104J
RS1/16S683J
RS1/16S224J
RS1/16S473J
RS1/16S473J

R
R
R
R
R

245
246
247
248
249

RS1/10S103J
RS1/10S103J
RS1/16S223J
RS1/16S223J
RS1/16S223J

R
R
R
R
R

165
166
171
172
174

RS1/16S182J
RS1/16S103J
RS1/16S152J
RS1/16S822J
RS1/16S472J

R
R
R
R
R

250
251
252
253
254

RS1/16S223J
RS1/16S153J
RS1/16S474J
RS1/16S681J
RS1/16S0R0J

R
R
R
R
R

175
176
178
181
182

RS1/16S223J
RS1/16S103J
RS1/10S2R2J
RS1/16S102J
RS1/16S223J

R
R
R
R
R

257
261
285
286
313

RS1/16S102J
RS1/16S225J
RS1/16S104J
RS1/16S104J
RS1/16S163J

R
R
R
R
R

183
184
185
186
187

RS1/16S102J
RS1/16S102J
RS1/16S472J
RS1/16S101J
RS1/16S223J

R
R
R
R
R

314
315
316
317
318

RS1/16S163J
RS1/16S163J
RS1/16S163J
RS1/16S163J
RS1/16S163J

R
R
R
R
R

201
202
203
204
205

RS1/16S223J
RS1/16S223J
RS1/16S223J
RS1/16S223J
RS1/16S223J

R
R
R
R
R

319
320
321
322
323

RS1/16S163J
RS1/16S163J
RS1/16S103J
RS1/16S103J
RS1/16S103J

R
R
R
R
R

206
207
208
211
212

RS1/16S223J
RS1/16S223J
RS1/16S223J
RS1/16S101J
RS1/16S101J

R
R
R
R
R

324
325
326
327
328

RS1/16S103J
RS1/16S181J
RS1/16S181J
RS1/16S181J
RS1/16S181J

R
R
R
R
R

213
214
215
216
217

RS1/16S163J
RS1/16S163J
RS1/16S163J
RS1/16S163J
RS1/16S163J

R
R
R
R
R

329
330
331
332
333

RS1/10S470J
RS1/10S470J
RS1/10S470J
RS1/10S470J
RS1/16S473J

R
R
R
R
R

218
219
220
221
222

RS1/16S163J
RS1/16S163J
RS1/16S163J
RS1/16S103J
RS1/16S103J

R
R
R
R
R

334
335
337
338
339

RS1/16S473J
RS1/16S473J
RS1/16S473J
RS1/16S473J
RS1/16S473J

R
R
R
R
R

223
224
225
226
227

RS1/16S103J
RS1/16S103J
RS1/16S181J
RS1/16S181J
RS1/16S181J

R
R
R
R
R

340
359
401
402
405

RS1/16S473J
RS1/16S100J
RS1/16S432J
RS1/16S432J
RS1/16S224J

R
R
R
R
R

228
229
230
231
232

RS1/16S181J
RS1/10S470J
RS1/10S470J
RS1/10S470J
RS1/10S470J

R
R
R
R
R

407
408
409
410
411

RS1/16S102J
RS1/16S102J
RS1/16S222J
RS1/16S222J
RS1/16S224J

R
R
R
R
R

233
234
235
237
238

RS1/16S473J
RS1/16S473J
RS1/16S473J
RS1/16S473J
RS1/16S473J

R
R
R
R
R

412
413
414
417
418

RS1/16S224J
RS1/16S102J
RS1/16S102J
RS1/16S753J
RS1/16S753J

R 239
R 240

RS1/16S473J
RS1/16S473J

R 427
R 428

RS1/16S123J
RS1/16S123J

A

B

C

D

E

F

32

KEX-M8547ZT/EW
1

2

3

4

5

Circuit Symbol and No.

6

7

Part No.

Circuit Symbol and No.

8

Part No.

R 429
R 430
R 431

RS1/16S823J
RS1/16S823J
RS1/16S473J

R 566
R 567
R 568

RS1/16S222J
RS1/16S822J
RS1/16S222J

R
R
R
R
R

432
433
451
452
453

RS1/16S473J
RS1/16S101J
RS1/16S102J
RS1/16S223J
RS1/16S823J

R
R
R
R
R

569
570
571
572
573

RS1/16S164J
RS1/16S223J
RS1/16S473J
RS1/16S472J
RS1/16S332J

R
R
R
R
R

454
455
456
457
458

RS1/16S181J
RS1/16S181J
RS1/16S181J
RS1/16S181J
RS1/16S181J

R
R
R
R
R

574
575
576
577
578

RS1/16S332J
RS1/16S332J
RS1/16S683J
RS1/16S332J
RS1/16S683J

R
R
R
R
R

459
460
497
498
500

RS1/16S223J
RS1/16S223J
RS1/4S121J
RS1/4S121J
RS1/16S471J

R
R
R
R
R

579
580
581
582
583

RS1/16S221J
RS1/16S221J
RS1/16S683J
RS1/16S332J
RS1/16S332J

R
R
R
R
R

506
507
508
509
510

RS1/16S104J
RS1/16S103J
RS1/16S103J
RS1/16S334J
RS1/16S101J

R
R
R
R
R

584
585
588
603
604

RS1/16S332J
RS1/16S332J
RS1/16S562J
RS1/16S102J
RS1/16S681J

R
R
R
R
R

511
512
513
514
515

RS1/16S101J
RS1/16S104J
RS1/16S104J
RS1/16S103J
RS1/16S182J

R
R
R
R
R

605
606
607
608
609

RS1/16S102J
RS1/16S0R0J
RS1/16S104J
RS1/16S102J
RS1/16S681J

R
R
R
R
R

516
517
518
519
520

RS1/16S683J
RS1/16S224J
RS1/16S473J
RS1/16S473J
RS1/16S102J

R
R
R
R
R

610
611
612
616
620

RS1/16S0R0J
RS1/16S0R0J
RS1/16S102J
RS1/16S473J
RS1/16S0R0J

R
R
R
R
R

522
525
526
527
528

RS1/16S222J
RS1/16S473J
RS1/16S681J
RS1/16S681J
RS1/16S681J

R
R
R
R
R

621
622
624
625
626

RS1/16S681J
RS1/16S0R0J
RS1/16S0R0J
RS1/16S681J
RS1/16S473J

R
R
R
R
R

529
530
531
532
533

RS1/16S103J
RS1/16S681J
RS1/16S473J
RS1/16S473J
RS1/16S472J

R
R
R
R
R

627
629
631
632
633

R
R
R
R
R

534
535
536
537
538

RS1/16S393J
RS1/16S473J
RS1/16S103J
RS1/16S473J
RS1/16S681J

R
R
R
R
R

634
635
637
638
641

RS1/16S102J
RS1/16S471J
RS1/16S102J
RS1/16S102J
RS1/16S473J

R
R
R
R
R

539
541
542
543
544

RS1/16S681J
RS1/16S681J
RS1/16S681J
RS1/16S681J
RS1/16S681J

R
R
R
R
R

642
643
644
645
646

RS1/16S104J
RS1/16S104J
RS1/16S473J
RS1/16S102J
RS1/16S103J

R
R
R
R
R

545
546
561
562
563

RS1/16S473J
RS1/16S103J
RS1/16S104J
RS1/16S123J
RS1/16S105J

R
R
R
R
R

647
648
654
655
656

RS1/16S102J
RS1/16S102J
RS1/16S102J
RS1/16S102J
RS1/16S102J

R 564
R 565

RS1/16S562J
RS1/16S223J

R 657
R 658

RS1/16S102J
RS1/16S223J

A

(M8547ZT)
(M8647ZT)

6

7

C

D

RS1/16S473J
RS1/16S472J
RS1/16S0R0J
RS1/16S102J
RS1/16S102J

KEX-M8547ZT/EW
5

B

8

E

F

33

1

Circuit Symbol and No.

2

3

Part No.

Circuit Symbol and No.

4

Part No.

R 659
R 660
R 661

RS1/16S102J
RS1/16S102J
RS1/16S102J

R 840
R 841
R 844

RS1/4S1R5J
RS1/4S1R5J
RS1/16S471J

R
R
R
R
R

662
663
664
665
666

RS1/16S102J
RS1/16S102J
RS1/16S102J
RS1/16S102J
RS1/16S681J

R
R
R
R
R

846
847
848
849
856

RS1/16S105J
RS1/10S361J
RS1/16S272J
RS1/16S392J
RS1/16S103J

R
R
R
R
R

667
668
669
670
671

RS1/16S473J
RS1/16S473J
RS1/16S473J
RS1/16S473J
RS1/16S473J

R
R
R
R
R

857
860
861
862
863

RS1/16S103J
RS1/16S223J
RS1/16S103J
RS1/16S104J
RS1/16S223J

R
R
R
R
R

672
673
674
675
676

RS1/16S473J
RS1/16S473J
RS1/16S473J
RS1/16S473J
RS1/16S102J

R
R
R
R
R

865
867
868
869
870

RS1/16S103J
RS1/16S472J
RS1/16S102J
RS1/16S102J
RS1/10S102J

R
R
R
R
R

677
678
679
680
681

RS1/16S102J
RS1/16S102J
RS1/16S102J
RS1/16S102J
RS1/16S102J

R
R
R
R
R

871
882
884
886
888

RS1/16S472J
RD1/4PU121J
RS1/16S223J
RS1/16S472J
RS1/16S473J

R
R
R
R
R

682
683
684
685
687

RS1/16S102J
RS1/16S102J
RS1/16S102J
RS1/16S102J
RS1/16S473J

R
R
R
R
R

690
691
692
693
698

RS1/16S473J
RS1/16S473J
RS1/16S473J
RS1/16S473J
RS1/16S102J

R
R
R
R
R

699
701
703
704
705

RS1/16S473J
RS1/16S473J
RS1/4S101J
RS1/4S101J
RS1PMF680J

R
R
R
R
R

711
751
801
802
803

R
R
R
R
R

804
805
806
807
808

RS1/8S472J
RS1/8S472J
RS1/8S472J
RS1/4S121J
RS1/4S121J

R
R
R
R
R

810
811
812
820
821

RS1/16S104J
RS1/16S104J
RS1/16S104J
RS1/16S123J
RS1/16S103J

R
R
R
R
R

822
834
835
836
837

RS1/16S103J
RS1/16S223J
RS1/16S221J
RS1/16S331J
RS1/16S681J

R 838
R 839

RS1/16S471J
RS1/16S151J

A

B

C

D

E

F

34

(M8647ZT)

RS1/16S473J
RS1/16S822J
RS1/8S222J
RS1/8S472J
RS1/8S472J

CAPACITORS
C
C
C
C
C

32
33
101
102
103

CCSRCH100D50
CCSRCH100D50
CKSRYB102K50
CKSRYB472K50
CKSRYB102K50

C
C
C
C
C

104
105
107
115
116

CKSRYB104K25
CKSRYB102K50
CKSRYB105K10
CCSRCH270J50
CCSRCH150J50

C
C
C
C
C

117
118
120
121
122

CCSRCH100D50
CCSRCK2R0C50
CKSRYB103K50
CKSRYB222K50
CKSRYB472K50

C
C
C
C
C

123
124
126
127
128

CCSRCH120J50
CKSRYB102K50
CKSRYB222K50
CKSRYB472K50
CCSRCH120J50

C
C
C
C
C

129
135
136
137
138

CKSRYB102K50
CCSRCH270J50
CCSRCH150J50
CCSRCH100D50
CCSRCK2R0C50

C
C
C
C
C

140
141
142
143
144

CKSRYB103K50
CKSRYB222K50
CKSRYB472K50
CCSRCH120J50
CKSRYB102K50

C
C
C
C
C

146
147
148
149
151

CKSRYB222K50
CKSRYB472K50
CCSRCH120J50
CKSRYB102K50
CKSRYB472K50

KEX-M8547ZT/EW
1

2

3

4

5

Circuit Symbol and No.

6

7

Part No.

Circuit Symbol and No.

8

Part No.

C
C
C
C
C

152
153
154
155
156

CKSRYB103K50
CKSYB106K6R3
CKSRYB105K10
CKSRYB102K50
CKSQYB225K10

C
C
C
C
C

261
262
263
281
282

CCSRCH471J50
CEJQ4R7M35
CKSRYB473K50
CKSRYB182K50
CKSRYB182K50

C
C
C
C
C

157
158
161
162
163

CKSRYB103K50
CKSRYB102K50
CKSRYB392K50
CKSRYB103K50
CKSRYB103K50

C
C
C
C
C

283
284
285
286
309

CKSRYB182K50
CKSRYB182K50
CCSRCH391J50
CCSRCH391J50
CKSRYB102K50

C
C
C
C
C

171
172
173
181
182

CKSRYB104K16
CKSRYB103K50
CKSRYB103K50
CKSRYB105K10
CKSRYB103K50

C
C
C
C
C

310
319
320
321
322

CKSRYB105K10
CCSRCH220J50
CCSRCH220J50
CCSRCH220J50
CCSRCH220J50

C
C
C
C
C

183
184
201
202
203

CKSRYB222K50
CKSRYB222K50
CEJQNP4R7M16
CEJQNP4R7M16
CEJQNP4R7M16

C
C
C
C
C

323
324
325
326
327

C
C
C
C
C

204
205
206
207
208

CEJQNP4R7M16
CCSRCH330J50
CCSRCH330J50
CCSRCH330J50
CCSRCH330J50

C
C
C
C
C

328
329
330
335
336

C
C
C
C
C

209
210
215
216
219

CKSRYB102K50
CKSRYB105K10
CEJQNP4R7M16
CEJQNP4R7M16
CCSRCH220J50

C
C
C
C
C

337
338
351
355
356

C
C
C
C
C

220
221
222
223
224

CCSRCH220J50
CCSRCH220J50
CCSRCH220J50
CCH1432
CCH1432

C
C
C
C
C

381
382
383
384
401

CKSRYB182K50
CKSRYB182K50
CKSRYB182K50
CKSRYB182K50
CKSRYB123K50

C
C
C
C
C

225
226
227
228
229

CCH1432
CCH1432
CCSRCH221J50
CCSRCH221J50
CCSRCH221J50

C
C
C
C
C

402
403
404
405
406

CKSRYB123K50
CCH1432
CCH1432
CKSRYB153K50
CKSRYB102K50

C
C
C
C
C

230
231
232
233
235

CCSRCH221J50
CKSRYB473K50
CEJQ101M6R3
CKSRYB102K50
CCH1432

C
C
C
C
C

411
412
415
416
417

CKSRYB104K16
CKSRYB104K16
CKSRYB105K10
CKSRYB105K10
CCSRCH391J50

C
C
C
C
C

236
237
238
243
244

CCH1432
CCH1432
CCH1432
CKSQYB102K50
CKSQYB102K50

C
C
C
C
C

418
421
451
480
493

CCSRCH391J50
CEJQ470M6R3
CKSRYB222K50
CKSQYB102K50
CCSQCH181J50

C
C
C
C
C

245
246
251
252
253

CKSQYB102K50
CKSQYB102K50
CKSRYB104K16
CKSRYB472K50
CEJQ220M6R3

C
C
C
C
C

494
495
496
497
503

CCSQCH181J50
CKSQYB102K50
CKSQYB102K50
CCSRCH221J50
CKSQYB103K50

C
C
C
C
C

254
256
257
259
260

CKSRYB104K16
CCSRCH270J50
CCSRCH270J50
CKSRYB104K16
CCSRCH471J50

C
C
C
C
C

504
506
507
508
509

CKSRYB102K50
CCSRCH100D50
CKSRYB472K50
CKSRYB103K50
CKSRYB103K50

4.7µF/35V
4.7µF/35V
4.7µF/35V
4.7µF/35V

4.7µF/35V
4.7µF/35V
4.7µF/35V
4.7µF/35V

4.7µF/35V
4.7µF/35V
4.7µF/35V
4.7µF/35V

4.7µF/35V
4.7µF/35V
4.7µF/35V
4.7µF/35V

4.7µF/35V
4.7µF/35V

6

7

B

CCH1432
CCH1432
CCH1432
CCH1432
CCSRCH221J50
CCSRCH221J50
CCSRCH221J50
CCSRCH221J50
CCH1432
CCH1432

C

CCH1432
CCH1432
CEJQ4R7M35
CEJQ220M10
CEJQ100M16

KEX-M8547ZT/EW
5

A

8

D

E

F

35

1

Circuit Symbol and No.

A

B

C

D

E

F

2

3

Part No.

4

Circuit Symbol and No.

Part No.

C
C
C
C
C

510
511
512
513
514

CKSYB106K6R3
CKSRYB472K50
CEV100M16
CKSRYB102K50
CKSQYB225K10

C
C
C
C
C

701
703
704
801
802

C
C
C
C
C

515
516
517
518
519

CKSRYB102K50
CKSRYB103K50
CKSRYB103K50
CKSRYB392K50
CKSRYB103K50

C
C
C
C
C

803
804
805
806
807

C
C
C
C
C

520
521
522
523
524

CKSRYB103K50
CEV101M10
CKSRYB103K50
CEJQ100M16
CKSRYB472K50

C
C
C
C
C

808
814
815
821
822

C
C
C
C
C

525
561
562
563
564

CKSRYB102K50
CEJQ3R3M50
CKSRYB333K16
CEJQNP1R0M50
CQMA683J50

C
C
C
C
C

823
824
825
829
861

C
C
C
C
C

565
566
567
568
569

CQMA333J50
CQMA333J50
CQMA333J50
CKSRYB105K10
CKSRYB333K16

C
C
C
C
C

866
867
870
871
872

C
C
C
C
C

570
571
572
573
574

CKSRYB123K50
CKSRYB682K50
CEJQ101M10
CKSRYB392K50
CKSRYB334K10

C 873
C 883

C
C
C
C
C

575
576
579
580
581

CKSRYB102K50
CCSRCH151J50
CCSRCH470J50
CCSRCH470J50
CCSRCH470J50

C
C
C
C
C

582
583
584
585
586

CKSRYB473K50
CKSRYB473K50
CKSRYB473K50
CKSRYB223K50
CKSRYB223K50

S
S
S
S
IL

901
901
902
902
901

Encoder(M8547ZT)
Encoder(M8647ZT)
Encoder(M8547ZT)
Encoder(M8647ZT)
Lamp 8V 85mA

CSD1083
CSD1080
CSD1080
CSD1083
CEL1748

C
C
C
C
C

587
601
602
603
604

CKSRYB104K16
CKSRYB102K50
CKSRYB103K50
CKSRYB103K50
CKSRYB104K16

IL
IL
IL
IL
IL

902
903
904
905
906

Lamp 8V 85mA
Lamp 8V 85mA
Lamp 8V 85mA
Lamp 8V 85mA
Lamp 8V 85mA

CEL1748
CEL1748
CEL1748
CEL1748
CEL1748

C
C
C
C
C

605
645
648
671
672

CEJQ220M6R3
CKSRYB103K50
CKSRYB102K50
CCSRCH101J50
CCSRCH101J50

C
C
C
C
C

673
674
675
691
692

CCSRCH101J50
CCSRCH101J50
CCSRCH101J50
CKSRYB102K50
CKSRYB102K50

C
C
C
C
C

693
694
695
696
697

CKSRYB102K50
CKSRYB102K50
CKSRYB102K50
CKSRYB102K50
CKSRYB102K50

36

CKSRYB103K50
CCSRCH221J50
CCSRCH221J50
CKSRYB102K50
CEJQ1R0M50

2200µF/16V

100µF/10V

100µF/10V

2200µF/16V

CKSRYB102K50
CCH1405(P35)
CKSQYB473K50
CKSRYB102K50
CEJQ1R0M50
CKSRYB102K50
CEJQ1R0M50
CEJQ1R0M50
CKSRYB103K50
CCH1402
CKSRYB103K50
CKSRYB472K50
CCH1402
CKSRYB103K50
CEJQ101M6R3
CEJQ100M16
CEJQ100M16
CKSRYB103K50
CKSRYB103K50
CCH1405(P35)
CKSRYB105K10
CKSRYB103K50

B
Unit Number:CWS1338(M8547ZT)
Unit Number:CWS1339(M8647ZT)
Unit Name:Keyboard Unit
MISCELLANEOUS

RESISTORS
R
R
R
R
R

901
902
903
904
905

(M8647ZT)
(M8647ZT)
(M8647ZT)
(M8647ZT)
(M8547ZT)

RS1/16S0R0J
RS1/16S0R0J
RS1/16S0R0J
RS1/16S0R0J
RS1/16S0R0J

R
R
R
R
R

906
907
908
909
910

(M8547ZT)

RS1/16S0R0J
RS1/16S0R0J
RS1/16S0R0J
RS1/16S3R3J
RS1/16S5R6J

(M8547ZT)

R 911
R 912

RS1/16S3R3J
RS1/16S3R3J

KEX-M8547ZT/EW
1

2

3

4

5

Circuit Symbol and No.
R 913
R 914

6

Part No.
RS1/16S5R6J
RS1/16S3R3J

C
Unit Number:EWM1031
Unit Name:Deck Unit
MISCELLANEOUS
IC 251
IC 351
Q 271
D 352
VR301

IC
IC
Transistor
Diode
Semi-fixed 33kΩ(B)

HA12216F
PA2020B
2SC4116
1SS355
CCP1280

VR302

Semi-fixed 33kΩ(B)

CCP1280

RESISTORS
R
R
R
R
R

255
256
257
258
259

RS1/16S181J
RS1/16S181J
RS1/16S183J
RS1/16S183J
RS1/16S133J

R
R
R
R
R

260
261
262
271
272

RS1/16S133J
RS1/16S274J
RS1/16S274J
RS1/16S183J
RS1/8S0R0J

R
R
R
R
R

273
274
275
276
277

RS1/8S0R0J
RS1/16S0R0J
RS1/16S473J
RS1/16S104J
RS1/16S224J

R
R
R
R
R

278
281
282
283
284

RS1/16S104J
RS1/8S0R0J
RS1/8S0R0J
RS1/8S0R0J
RS1/8S0R0J

R
R
R
R
R

285
287
291
292
293

RS1/16S0R0J
RS1/16S0R0J
RS1/8S0R0J
RS1/10S0R0J
RS1/10S0R0J

R
R
R
R
R

294
321
322
351
352

RS1/10S0R0J
RS1/8S0R0J
RS1/8S0R0J
RS1/16S102J
RS1/16S102J

R
R
R
R
R

353
354
355
362
373

RS1/16S102J
RS1/16S102J
RS1/16S274J
RS1/8S301J
RS1/16S0R0J

R
R
R
R
R

374
375
401
402
403

RS1/8S0R0J
RS1/8S0R0J
RS1/16S153J
RS1/16S332J
RS1/16S911J

R 404

RS1/16S274J

7

Circuit Symbol and No.
CAPACITORS

8

Part No.

C
C
C
C
C

251
252
253
254
255

CKSRYB391K50
CKSRYB391K50
CKSRYB391K50
CKSRYB391K50
CKSRYB103K50

C
C
C
C
C

256
271
272
301
302

C
C
C
C
C

309
310
351
352
353

CKSRYB104K25
CKSRYB104K25
CKSQYB224K16
CKSRYB392K50
CKSRYB103K50

C
C
C
C
C

354
355
356
401
402

CKSRYB103K50
CKSQYB104K50
CKSRYB103K50
CKSRYB392K50
CKSRYB334K10

C 403
C 404
C 405

CKSRYB223K25
CKSRYB103K50
CKSRYB333K16

1µF/50V

CKSRYB103K50
ECH0002
CKSRYB104K25
CKSRYB104K25
CKSRYB104K25

6

B

C

D
Unit Number:EWM1041
Unit Name:Sensor Unit
MISCELLANEOUS
L
L
S
S
S

101
102
101
102
103

Inductor
Inductor
Switch(LOAD)
Switch(MODE)
Switch(70µS)

CTF1546
CTF1546
ESG1007
ESG1007
ESG1007

Q 101

Photo-reflector

EGN1004

D

Miscellaneous Parts List
M 1
M 2
HD1

Motor Unit(MAIN)
Motor Unit(SUB)
Head Assy

EXA1618
EXA1660
EXA1594

E

F

KEX-M8547ZT/EW
5

A

7

8

37

1

2

3

4

6. ADJUSTMENT
6.1 JIG CONNECTION DIAGRAM
A

- Connection Diagram TOYOTA EMV SYSTEM MODEL
KEX-M8547ZT/EW(L)
KEX-M8647ZT/EW(R)
EMV(DENSO)

H/U

B

20P

20P

12P

20P

20P

12P

6P

28P

26P

28P

26P

GGD1304
GGD1346
Bullet connector
(To DC Regulated Power Supply)
GM-9127ZT-02/EW(L)
GM-9427ZT-02/WL(R)

Bullet connector
(To DC Regulated Power Supply)

AMP
C

GGD1240

25P

16P

25P

16P

NAVI ECU(A/W)

Bullet connector GGD1169
SP Line
FR-

FR+

AUI-

AUI+

18P

10P

18P

10P

D

CDX-M9027ZT/WL(R)
Bullet connector
(To DC Regulated Power Supply)

MCD

Non-connected

24P

32P
24P
For MCD(used for another system)
E

*Please don't connect the MCD(L) and MCD(R)
at the same time
CDX-M8086ZT/E(L)
MCD

12P
12P
F

38

KEX-M8547ZT/EW
1

2

3

4

5

6

7

8

6.2 CASSETTE AND AUDIO ADJUSTMENT
A

-Connection Diagram

BACK UP

+13.2V

ACC

GND

DC Regulated
Power Supply

GND

B

MAIN UNIT
Extension Cord GGD1121
DECK UNIT
C
CN353

FM/AM TUNER UNIT

VR302

VR301

Pin2
Pin3

VR561

CN251

L-CH
R-CH

D

mV
Meter

DOLBY B NR ADJUSTMENT
No.
1

Test Tape

Adjustment Point

NCT-150
(400Hz, 200nwb/m)

VR301(Lch), VR302(Rch)

Adjustment Method
(Switch Position)
mV Meter : - 8.24dBm + 1dB
(DOLBY NR Switch : OFF)
E

F

KEX-M8547ZT/EW
5

6

7

8

39

1

2

3

4

3

4

AM NOISE CANCELER ADJUSTMENT

A

Connection:

SSG

Output
2-signal pad

KEX-M8547ZT/EW
KEX-M8406ZT
KEX-M8647ZT/EW
KEX-M9406ZT

AM dummy

Noise meter

Pulse generator
(equivalent to HP8011A)

Setting of the pulse generator. (setting of superimposed pulse)
B
Pulse width

:50µsec

4Vp-p(EMF)
Pulse intervals :5msec
50us
Pulse voltage :4Vp-p
5ms

Adjustment:
1. Setting of SSG
Receiving frequency
: 999 kHz
Percentage modulation : 30%
Modulation frequency : 400 Hz
Antenna input
: 74 dBµV (EMF)
2. Tune a RADIO to the "999kHz" with 1 condition.

C

3. .Mix signal with the above-mentioned pulse and
SSG moduration OFF .
4. Variable resistance adjust noise level to a
minimum.
Adjustment point : VR561

D

E

F

40

KEX-M8547ZT/EW
1

2

5

6

7

8

6.3 SELF-DIAGNOSIS FUNCTION
A

1.To Service Check

DISPLAY

Display
A

Frame of display adjustment

B

Audio mode

B
C

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

D

Audio H/U

EMV

DSP AMP

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

CD-CH
E

LAN Monitor

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

F

KEX-M8547ZT/EW
5

6

7

8

41

1

2

3

4

Service Check

A

EMV

B

OK

DSP AMP

OK

CD-CH

NCON

Audio H/U

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

LAN Monitor

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

Audio H/U

Unit Check Mode

Current

Memory

Occurred Date/Time

D

61-40

E

The detected abnormalities
(Diagnosis code) are displayed.
At this example, it is 40
(abnormalities in mechanism or
media) of 61 (= cassette).

3.How to exit from the diagnostic test mode
ACC-OFF

F

42

KEX-M8547ZT/EW
1

2

3

4

Logical
address name
Communi
-cation
control
Logical
address
01H

5

6

No diagnosis
Abnormal reset
Abnormal +B
Abnormal ACC
Abnormal MUTE
Fuse broken
Microcomputer - abnormal
ROM - abnormal
RAM - abnormal
Bus - abnormal
F-ROM - abnormal
V-RAM - abnormal
Gate allay abnormal
Paint controller abnormal
Backup memory abnormal
Voice output controller abnormal
Internal power supply abnormal
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
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
Voice processor ON abnormal
ON/OFF command or parameter abnormal
Registration command transmission
Multiple frames intermit.
Diagnosis - no response

Diagnosis details

Logical
address
60H

40H

61H

43H
62H
63H

64H
65H

TV tuner

Cassette
tape

CD
CD-P
CD-CH

MD
MD-CH

10
11
40
41
42
43
44
45
10
11
40
41
42
43
44
45
46
10
40
41
42
43
44
10
11
12
40
41
42
43
44
45
46
47
48
50
51
52
10
11
12
40
41
42
43
44
45
46
47
48
50
51
52

Diagnosis
code

Diagnosis details

EJECT failure
TAPE jamming
Dirty head
Mech power supply abnormal
CD Mech abnormal
CD loading/unloading abnormal
CD lead-in abnormal
No disc loaded
Incorrect disc
Disc unreadable
CD-ROM abnormal
CD abnormal
EJECT abnormal
Scratches or non-recorded side
CD high temperature detected
Excessive current detected
Tray IN/OUT abnormal
Elevator abnormal
Clamp abnormal
MD mech abnormal
MD IN/OUT abnormal
MD lead-in abnormal
No disc loaded
Incorrect disc
Disc unreadable
MD-ROM abnormal
MD abnormal
EJECT error
Scratches or non-recorded side
MD high temperature detected
Excessive current detected
Tray IN/OUT abnormal
Elevator abnormal
Clamp abnormal

Mechanical failure or cassette broken

AM tuner PLL unlocked
FM tuner PLL unlocked
No antenna connected
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
TV – no reception
VNR screen error
No antenna connected
Antenna power supply abnormal
SEL +B current – small
SEL +B current – large
Belt broken

Diagnosis code table
Logical
address name
Radio

7

02H

32H
34H

21H
23H
24H
25H
C0H

Extended
communi
-cation

Information
display/front
monitors

SW, Audio
SW, SW
shifting,
Command
SW
XM tuner

85H

5AH
84H
5BH
83H
82H
9AH
FM multiplex
(VICS), radio
wave beacon,
beacon, optical
beacon, FM
multiplex (data),
and FM
multiplex tuner

Voice
control

Logical
address
58H
80H

Logical
address name
Navigation
/GPS

Diagnosis details

PLL Unlock
CODEC Communication Error
SSDEC Communication Error
SSDEC No Response Error
NVM Error
CAP Error
ANTENNA No Contact
ANTENNA Short

11
12
13
14
15
16
40
41

Panel open/close mechanical operation abnormal

Front seat monitor abnormal
Heater abnormal
Panel SW abnormal
Touch SW failure

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
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
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)

10
11
12
13
14
15
16
40
41
42
43
44
45
41
45
46
47
4A
4B
4C
40
41
40
41
42
43
50
51
52
53
54
55
56
57
10
11
12
13
40
41
10
11

Diagnosis
code

6

E1
E2
E3
E4
FF

D6
D7
D8
D9
DA
DB
DC
DD
DE
DF
E0

00
01
10
11
12
13
20
21
22
23
24
25
26
27
28
29
2A
30
31
D0
D1
D2
D4
D5

Diagnosis
code

5
7
8

KEX-M8547ZT/EW

8

A

B

43

C

D

E

F

44
45H

Diagnosis details
PLL unlocked
CDEC communication error
SSDEC communication error
SSDEC no response
NVM error
CAP error
No antenna connected
Antenna short-circuited
Disc unreadable
DVD abnormal
EJECT abnormal
Scratches or non-recorded side
DVD high temperature detected
Excessive current detected
Tray IN/OUT abnormal
Elevator abnormal

Diagnosis
code

11
12
13
14
15
16
40
41
42
44
45
46
47
48
50
51

A

DVD-CH

Logical
address
C0H

Diagnosis code table

B
Logical
address name
XM

1

1

2

C

D

E

F

2

KEX-M8547ZT/EW
3
4

3

4

5

6

7

8

7. GENERAL INFORMATION
7.1 DIAGNOSIS
7.1.1 DISASSEMBLY

A

- Removing the Upper Case (not shown)
1. Remove the Case.

Cassette Mechanism Module

- Removing the Cassette Mechanism Module (Fig.1)

1

Remove the four screws and then remove
the Cassette Mechanism Module.

1

1

1

1

B

- Removing the Grille Assy (Fig.1)

2

Remove the two screws and then remove
the Grille Assy.

2

2

C

Fig.1

Grille Assy
- Removing the Front Frame (Fig.2)

1

Remove the three screws and then remove
the Front Frame.

1

1
1

D

Front Frame

Fig.2

- Removing the Main Unit (Fig.3)

1
2

3

Straighten the tabs at two locations
indicated.

3

Remove the two screws.

2

1

3

E

Remove the two screws and then remove
the Main Unit.

2
1

F

Fig.3

Main Unit

KEX-M8547ZT/EW
5

6

7

8

45

1

2

3

4

7.1.2 CONNECTOR FUNCTION DESCRIPTION

A

SUB ANTENNA
MAIN ANTENNA

B

MUTE L-

L+

R-

(SLD)

R+ SGND

L+ R+ MUTE NC TX+ NC (AMP+B) ILL+ BU

GND L- R- NC NC TX- NC ANT+B ILL- ACC

(BU) (ACC) TX- TX+ NC (GND)

TX- TX+ SW2

SW1 SWG CMP- CMP+ NC NC NC

NC RMU RSL- RSL+ RSR- RSR+ (SLD) NC NC NC

C

D

E

F

46

KEX-M8547ZT/EW
1

2

3

4

5

6

7

8

7.1.3 TROUBLE-SHOOTING
Is B-UP ON?
bsens terminal
Pin 75(IC601)

NO

Check +B
(Check a power supply.)

A

YES
Is ACC ON?
asens terminal
Pin 73(IC601)

NO

Turn on ACC
(Check a power supply.)

NO

Check illumination circuit?
ISENS terminal Pin 2(IC601)

NO

Check PWRSW terminal
power Pin 69(IC601)

NO

Is amplifier connected
correctly?

YES
Does illumination
come on?
YES
Is PWR-ON enabled?

B

YES
Is voice output?

NO

YES

Connect amp correctly

YES

Check the following terminals
Is any sound of FM, AM and
NO
SYSPW Pin 1(IC601)
TAPE (internal sources) output?
sysmute2 Pin 5(IC601)
sysmute1 Pin 6(IC601)
YES
Are FM and AM
sounds output?

NO

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

C

YES
Is TAPE sound output?

NO

Recheck hardware

YES
IsTAPE mechanical unit
operated normally?

NO

YES

Is VOL adjustment
enabled?

NO

Check the following terminals
stby Pin 90(IC601)
CM Pin 89(IC601)
SC1 Pin 88(IC601)
SC2 Pin 87(IC601)

Check the following terminals
SYSPWR Pin1(IC601)

Check encoder input.
ENC1- Pin 65(IC601)
ENC1+ Pin 63(IC601)

D

YES
Normal operation

E

F

KEX-M8547ZT/EW
5

6

7

8

47

1

2

3

4

7.2 IC
A

B

C

D

E

- Pin Functions(PD5945A)
Pin No.
Pin Name
1
SYSPWR
2
ISENS
3
KISYU
4
LAMP
5
sysmute@
6
sysmute
7
RSEMUTE
8
BYTE
9
CNVSS
10
LANMUTE
11
SWVDD
12
reset
13
XOUT
14
VSS
15
XIN
16
VCC
17
nmi
18
rck
19
ldet
20
NC
21
RX2
22
IPPW
23
SEL2a
24
NC
25
SEL2b
26
SHIMUKE
27
SEL1a
28
SEL1b
29
RX1
30
TX
31
PDO
32
PDI
33
pck
34
NC
35
SPDO
36
SPDI
37
spck
38
SCE
39
SCPON
40
SSD
41, 42
NC
43
FMPW
44
AMPW
45
rdsmute
46
drst
47
currq
48
RDS57K
49
RDT
50
rdslk
51
LOCL
52, 53
PCE1, 2
54
SDBW
55
NL2
56
FMSD
57
st

I/O
O
I
I
O
O
O
O
I
I
O
O
I
O
I
I
I
I
I
I
O
I
O
O
O
O
I
O
O
I
O
O
I
O
O
O
I
O
O
O
I
O
O
O
O
O
O
I
I
I
O
O
I
I
I
I

Function and Operation
Power supply control output
Illumination sense input
Model input
Lamp power supply control(D/A) output
System mute output for RSE
System mute output
RSE mute output
Vss(Single chip) input
CNVSS input
AVC-LAN mute output
SWVDD output
Reset input
Main clock output
GND input
Main clock input
Power supply(2.7-5.5V) input
VDD input
RDS data clock input
PLL lock signal input
Not used
(BUS)
BUS power supply output
Selector switch a output for RSE
Not used
Selector switch b output for RSE
Model input(L, R)
Selector switch a output for AMP
Selector switch b output for AMP
(BUS)
(BUS)
PLL data output
PLL data input
PLL data clock output
Not used
Sub tuner data output
Sub tuner data input
Sub tuner data clock output
Sub tuner chip enable output
Sub tuner power supply control output
Sub tuner station ON signal input
Not used
FM power output
AM power output
RDS mute output
RDS decoder IC reset output
Current request output
RDS 57kHz ON/OFF input
RDS data input
RDS station ON signal input
Local L output
PLL chip enable 1, 2 output
SD bandwidth ON signal input
NL2 ON signal input
FM ON signal input
Stereo input

F

48

KEX-M8547ZT/EW
1

2

3

4

5

Pin No.
58
59
60
61
62
63
64
65
66-68
69
70-72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87, 88
89
90
91
92
93
94
95
96
97
98
99
100

6

Pin Name
ROMDT
ROMCLK
ROMCS
TEST
VCC
ENC1+
VSS
ENC1KST0-2
power
KDT0-2
asens
csej
bsens
KDT3
ENC2+
ENC2MS
f/R
PLAY
mtl
NR
CSLOAD
POS
ES
SC2, 1
CM
stby
NL1
SSL
MSL
ILLSTSW2
AVSS
STSW1
VREF
AVCC
ANTB

I/O
O
O
O
I
I
I
I
I
O
I
I
I
I
I
I
I
I
I
O
O
I
O
I
I
I
O
O
O
I
I
I
I
I
I
I
I
I
O

7

8

Function and Operation
ROM correction data output
ROM correction clock output
ROM correction chip select output
Test mode input
Power supply(2.7-5.5V) input
VOL encoder input +
GND input
VOL encoder input Key strobe output 0-2
POWER key input
Key data input 0-2
ACC sense input
Tape eject sense input
Back up sense input
Key data input 3
AUD encoder input +
AUD encoder input Music sense input
Head forward/reverse select output
MS gain select output
METAL input
Dolby B NR ON/OFF output
Tape loading detect input
Position sense input
Tape end detect input
Sub motor control output 2, 1
Capstan control output
Tape stand-by output
Noise level input
Sub tuner signal level input
Main tuner signal level input
Illumination - input
Stearing SW 2 input
A/D converter GND input
Stearing SW 1 input
A/D converter reference voltage input
A/D converter power supply input
Antenna power supply control output

A

B

C

D

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

1

30

* PD5945A

100

31

E

81
80

51

50

F

KEX-M8547ZT/EW
5

6

7

8

49

1

2

3

4

- FM/AM Tuner Unit
FM/AM 1ST IF 10.7MHz
T51 Q51 CF51 CF52 CF53

AMRF
28

AMANT

A

MPXREF 41kHz
AMDET

ATT

L ch

IC 2 FM MPX

6
R ch
AMIN

ANT ADJ
FMANT

27
RFGND
26

COMP

IC1
MIXER, IF AMP, DET.

LDET

5
20
21
18

ATT
FMRF
CF202

25

No. Symbol I/O Explain
1 STIND O stereo
indicator
2 FMSD
O FM station
detector

B

C

3 NL1
4 NL2
5 Rch

O
O
O

6 Lch

O

7 WC
8 SDBW O
9 AMDET O
10 VDD

noise level-1
noise level-2
R channel
output
L channel
output
write control
SD bandwidth
AM detector
output
power
supply
digital ground
chip enable-2

11 12 15 16

8

13

2

3

4

STIND
1

AMDET

NL2

NL1

FMSD

SL

SDBW

CE1

CK

CE2

FMLOCL
24

DGND

22 10 19 14

VDD
CREQ

7 17

DI/DO

VCC

RF ADJ
LOCL

LOCH
23

IC 3
EEPROM

WC
AMPNS

IMG ADJ

AM 2ND IF X901
450kHz 10.25MHz

9

"Low" when the FM stereo signals are received.
To be pulled up to the "VDD" at 47kΩ.
"High" when signals are received. To be pulled up to the "VDD" at 47kΩ
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)
"High" when noise is received. Output for the RDS. GND at 47kΩ//1,800pF.
"High" when noise is received. Output for the RDS. GND at 36kΩ//330pF.
FM stereo "R-ch" signal output or AM audio output.
Add the specified de-emphasis constant.
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.
SD bandwidth signal output. For detection of detuning data for the RDS.
AM detector output. r out < 100Ω

Power supply pin for the digital section.
DC 5V +/- 0.25V. Be careful about overlapping noise in the logic section.
11 DGND
Grounding for the digital section.
12 CE2
I
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 input/Data output
data output
To be pulled up to the "VDD" at 47kΩ
15 CK
I
clock
Clock input To be pulled up to the "VDD" at 47kΩ
16 CE1
I
chip enable-1
AF·RF chip enable. Active at "High"To be grounded at 47kΩ
17 AMPNS O AM PNS IF signal IF signal output for AM PNS circuit.
18 LDET
O lock detector
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 FM composite signal output. r out < 100Ω
22 VCC
power supply
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.

D

E

F

50

KEX-M8547ZT/EW
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5

6

7

8

7.3 EXPLANATION
7.3.1 SYSTEM BLOCK DIAGRAM
A

+B, ACC
+B, ACC

AVC-LAN

KEX-M8547ZT/EW
KEX-M8647ZT/EW

SPEAKER
EMV

1DIN
HEAD UNIT

OTHER MAKERS

L/R

AMPLIFIER

AVC-LAN

AVC-LAN

B

AVC-LAN

L/R

PIONEER

CD-CH
PIONEER

C

D

E

F

KEX-M8547ZT/EW
5

6

7

8

51

1

2

3

4

7.3.2 OPERATIONAL FLOW CHART

A

Power ON

VCC=5V
Pin 16, 62
B

bsens
Pin 75
bsens=L
asens
Pin 73
C

asens=L
SWVDD←H
Pin 11

IPPW←H
Pin 22

SYSPWR←H
Pin 1

D

Source keys
operative

Source ON
E

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

F

52

KEX-M8547ZT/EW
1

2

3

4

5

6

7

8

7.4 CLEANING
A

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

Portions to be cleaned
Cassette heads
Pinch rollers
Capstans

Cleaning tools
Cleaning paper : GED-008

B

C

D

E

F

KEX-M8547ZT/EW
5

6

7

8

53

1

2

3

4

8. OPERATIONS
- KEX-M8547ZT/EW
- RADIO

A

KEX-M8547

TRAFFIC ANNOUNCEMENT

ZT/EW

B

AM

FM
SEEK
UP/DOWN

POWER
ON/OFF,
VOLUME

MANUAL TUNING

- TAPE
EJECT
C

KEX-M8547

ZT/EW

D

TAPE
POWER
ON/OFF,
VOLUME

AUTO
PROGRAM
SEARCH

DIRECTION
CHANGE

- CD, DVD

E

KEX-M8547

ZT/EW

CD,DVD
F

POWER
ON/OFF,
VOLUME
54

TRACK
SELECT

DISC
SELECT
KEX-M8547ZT/EW

1

2

3

4

5

6

- KEX-M8647ZT/EW
- RADIO

7

8

TRAFFIC ANNOUNCEMENT
A

KEX-M8647

ZT/EW

B

AM

FM
SEEK
UP/DOWN

MANUAL TUNING

POWER
ON/OFF,
VOLUME

- TAPE
EJECT

C
KEX-M8647

ZT/EW

TAPE
D

AUTO
PROGRAM
SEARCH

DIRECTION
CHANGE

POWER
ON/OFF,
VOLUME

- CD, DVD

KEX-M8647

ZT/EW

E

CD,DVD
TRACK
SELECT

DISC
SELECT

POWER
ON/OFF,
VOLUME

F

KEX-M8547ZT/EW
5

6

7

8

55

1

2

3

4

- Jigs List
Name
Extension cord
Extension cord
Extension cord
Extension cord
Extension cord
Test tape
Cleaning paper

A

Jig No.
GGD1169
GGD1240
GGD1304
GGD1346
GGD1121
NCT-150
GED-008

Remarks
Adjustment
j
Adjustment
j
Adjustment
j
Adjustment
j
Cassette mechanism module adjustment
j
Cassette mechanism module adjustment
j
Cleaning
g cassette heads, pinch rollers and capstans

B

C

D

E

F

56

KEX-M8547ZT/EW
1

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4



---

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.3
Linearized                      : Yes
Modify Date                     : 2004:07:16 17:51:51+09:00
Create Date                     : 2004:07:14 10:54:06Z
Subject                         : Linked
Page Count                      : 56
Page Mode                       : UseThumbs
Page Layout                     : SinglePage
Producer                        : Acrobat Distiller 4.05 for Macintosh
Author                          : PMC
Mod Date                        : 2004:07:15 11:26:30+09:00
Creation Date                   : 2004:07:14 10:54:06Z
Metadata Date                   : 2004:07:15 11:26:30+09:00
Creator                         : PMC
Title                           : CRT3321

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