Kenwood Kdc-m4524 User manual

B53-0014-00 (N)1874

CD RECEIVER

KDC-M4524/G/Y/GY

SERVICE MANUAL

Panel assy

(A64-2879-02): KDC-M4524 /Y

(A64-2882-02): KDC-M4524G /GY

Escutcheon

(B07-3001-02)

Mounting hardware assy

(J21-9716-03)

Plastic cabinet assy

(A02-1486-13) DC cord

(E30-4790-05)

Lever

(D10-4589-04) Antena adaptor

(T90-0523-05)

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TUNER

MP3

CH

SWITCH UNIT (X16- )

BUFFER RDS

DECODER BUFFER

EEPROM

REMOCON

RESET SW

WITH

LCD DRIVER

KEY MATRIX

LCD

DSI

u-COM

MPX

E-VOL

&

ACC DET

TEL MUTE

B.U DET

PRE MUTE

DRIVER

MUTE POWER

IC

THERMAL

PROTECT

ACC

TEL MUTE

BACK UP

(REAR)

PRE OUT

SP OUT

SURGE DET

SERVOSERVO+B SW 14V

WIRED REMO

SUPPLY

IC

POWER ANT CON

P CON

RESET

SW 5V

PANEL 5V

SW5V

MECHA

+B

MECHA+

ILL SW

ILLUMI

IC7

IC2

IC1

IC4

IC3

IC8

IC1 IC2

S-METER

AUDIO OUT

IFC OUT

PLL-DATA

PLL-CLK

SW5V

AM+B

A8V

SW(SW3)

12EJE SW(SW2)

LO/S SW(SW1)

MS CLK

MS DATA

LO.E/LIM

M MUTE

LO/EJ

M STOP

M RST

SERVO+B

A8V

BU5V

MECHA+

DATA C

CH MUTE

CH RST

REQ H

REQ C

CH CLK

CH-CON

DATA H

BACK UP

QUAL

S-METER

R DATA

R CLK

FM

AM

MP

LEVEL

CD

QUAL

AFS

CH

SW5V

BU5V

DSI

L CLK

L DATAS

L CE

L DATAL

REMO

MUTE

P-MUTE

PHONE

ACC DET

B.U DET

BEEP

PS1-0

PS1-1

PS1-2

PS2-0

PS2-2

RST

BU5V

BACK UP

A8V

SW5V

AM+B

ILLUMI

A8V

BU5V

MODE

FM

AM

MP3

E-TYPE

1372mV

855mV

3600mV

K-TYPE

1800mV

600mV

3600mV

P-STBY

BU5V

TDF DET

PANEL

BU5V

SW5V

DATA

CLK

BLOCK DIAGRAM

KDC-M4524/G/Y/GY

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COMPONENTS DESCRIPTION

● SWITCH UNIT (X16-2052-71/2362-70)

Ref. No. Function Operation

IC1 LCD Driver

IC2 Remote-control IC

Q1 Key-scan Start SW "ON" when the base goes "L".

Q2 Key-illuminations SW (GREEN) ON (Key-illuminations Green) when the base goes "H".

Q3 Key-illuminations SW (RED) ON (Key-illuminations RED) when the base goes "H".

● ELECTRIC UNIT (X25-9622-71/9812-70)

Ref. No. Function Operation

IC1 System MI-COM

IC2 E-VOL.& N.C. MPX

IC3 Power Supply IC

IC4 Power IC

IC6 Analog SW (Mute logic)

IC7 RDS Demodulator

IC8 Reset IC “L”: detection voltage below 3.6V

IC9 CD mechanism 5V AVR

Q1 SERGE Det. ON when the base goes “Hi”.

Q2 B.U. Det. ON when the base goes “Hi”during BU applied.

Q3 ACC Det. ON when the base goes “Hi”during ACC applied.

Q4 SW 5V ON when the base goes “Lo”.

Q21 SERVO +B AVR Output voltage 7.4V

Q22 SW 14V ON when the base goes “Hi”.

Q41 MECHA 5V AVR SW ON when the base goes “Lo”.

Q101 Buffer The buffer for composite signals.

Q151 Panel 5V SW ON when the base goes “Lo”.

Q201 Noise buffer

Q350 Mute driver for Audio mute SW ON when the base goes “Lo”.

Q351 Pre mute SW Audio Pre-output is muted when the base goes“Hi”.

Q352 Pre mute SW

Q401 DSI ILLUMI SW ON when the base goes “Lo”.

KDC-M4524/G/Y/GY

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● SYSTEM MICROCOMPUTER UPD703030GC011 (IC1 : X25)

pin pin name I/O Description

truth table

Processing Operation

1 PLL CLK I/O Clock output to F/E

2 AFS O Noise detection time constant switching terminal FM seek/during/AF search : L, receiving : H

3 TDF DET I TDF panel detection terminal Panel detached : H, panel attached :L

4 IC2 SDA I/O Data input and output terminal with E-VOL

4 IC2 SDA I/O Data input and output terminal with CD mechanism

4 IC2 SDA I/O Data input and output terminal with E2PROM

5 IC2 SCL I/O Clock output to E-VOL

5 IC2 SCL I/O Clock output to CD mechanism

5 IC2 SCL I/O Clock output to E2PROM

6VDD -

7 VSS -

8 - O Not used

9 BEEP O Beep output terminal

10 REMO I Remote control input

11 R QUAL I RDS decoder quality input terminal

11 - O Not used With no RDS and destination is output L

12 R DATA I RDS decoder data input terminal

12 - O Not used With no RDS and destination is output L

13 L CE O CE output to LCD driver

14 - O Not used

15 L INH O Reset output to LCD driver Display light off, KEY reset : L Display light on,

KEY scan : H

16 DSI O DSI control terminal DSI light on : H, Light off : L

17 - O Not used

18 TEST -

19~21

- O Not used

22 MOSW O CD mechanism motor IC switch eLoading/Eject/Break : H

23 LO/EJ I/O CD mechanism Loading/Eject switch eStop/Break : Hi-Z Loading : L Eject : H

24 M STOP O Stop request to CD mechanism

25 M RST O Reset output to CD mechanism Usually : H, Reset : L

26 MUTE I/O Mute terminal L : MUTE OFF, H : MUTE ON

27

LO.E/LIM SW (SW3)

I CD Down Switch detection terminal H : chucking

28 M MUTE L I MUTE request from CD mechanism L : MUTE request

29 M MUTE R I MUTE request from CD mechanism L : MUTE request

30 - O Not used

31 RESET I Usually : H, Reset : L

32 XT1 I Sub clock 32.765kHz

33 XT2 I Sub clock 32.765kHz

34 REGC -

Ceramic capacitor connected to the pair grounds

35 X2 I Main clock 20MHz

36 X1 I Main clock 20MHz

37 VSS -

38 VDD -

39 CLKOUT -

40 IC2 TYPE1 I E-VOL setting switching terminal

41 IC2 TYPE0 I E-VOL setting switching terminal

42 - O Not used

43 TYPE1 I Destination switching terminal r

44 TYPE0 I Destination switching terminal r

MICROCOMPUTER’STERMINAL DESCRIPTION

KDC-M4524/G/Y/GY

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pin pin name I/O Description

truth table

Processing Operation

45 CD MECHA+B I/O Power supply control terminal for MP3 ON : L, OFF : Hi-Z

46 SW5V I/O Control terminal for switch5V ON : L, OFF : Hi-Z

47 PS2-0 O Control terminal for power supply IC w

48 PS2-1 O Control terminal for power supply IC w

49 PS1-0 O Control terminal for power supply IC q

50 PS1-1 O Control terminal for power supply IC q

51 PS1-2 O Control terminal for power supply IC q

52 BU DET I BU detection terminal BU detection : L, with no BU : H

53 ACC DET I ACC detection terminal ACC detection : L, with no ACC :H

54 - O Not used

55 BVDD -

56 BVSS -

57,58

- O Not used

59 P-MUTE O POWER IC MUTE output terminal POWER OFF :L, ALLOFF : L, TEL MUTE : L

60 P-STBY O POWER IC STBY output terminal POWER IC ON :H, OFF : L

61,62

- O Not used

63 PRE MUTE O PREOUT MUTE output during momentary power down L,

When M-MUTEL : L

64~67

- O Not used

68 LX-RST O Reset output to external unit Usually, L after system RST returned,after

more than 400m sec H,and L

69 LX-CON O Control output to external unit ON : H, OFF : L

70 AVCONT O AD reference voltage control output during motion : H

71 AVDD -

72 AVSS -

73 AVREF - Connection with 70pin

74 PHONE I PHONE detection terminal TEL MUTE : 1V orless, NAVI MUTE :more

than 2.5V

74 - I Not used (with no PHONE destination)

75~81

- I Not used

82 S-METER I S-meter detection terminal Dependant for control use of tuner

83 NOISE I FM noise detection terminal Dependant for control use of tuner

84 IFC-OUT I F/E IFC OUT input terminal Dependant for control use of tuner

85 LX-MUTE I MUTE request to external unit H : MUTE ON, L : MUTE OFF

86 LX-REQM O Request output to external unit Request detection : L

87 R CLK I RDS decoder Clock input terminal

87 - O Not used Destination with no RDS :output L fixed

88 LX-REQS I Request intput to external unit Request detection : L

89 KEY-REQ I Request of communication from LCD driver L : KEY input

90 LO.S SW (SW1) I Loading start switch detection terminal Loading start : L

91

12EJE SW (SW2)

I

12cmDISK EJECT position detection switch terminal

12cmDISC : L

92 - O Not used

93 - O Not used

94 LX-DATAS I Data input from external unit

95 LX-DATAM O Data output to external unit Holding the last

96 LX-CLK I/O Clock output and input terminal with external unit

97 L DATAL I Data input from LCD driver

98 L DATAS O Data output to LCD driver

99 L-CLK I/O Clock output to LCD driver

100 PLL DATA I/O Data output and input terminal with F/E

MICROCOMPUTER’STERMINAL DESCRIPTION

KDC-M4524/G/Y/GY

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MICROCOMPUTER’STERMINAL DESCRIPTION

Truth table 1

PS1-0 PS1-1 PS1-2 AUDIO P-CON P-ANT

L L L OFF OFF OFF

H(L) L(H) L ON OFF OFF

H H L ON ON OFF

HHHONONON

Truth table 2

PS2-0 PS2-1 ILLUMI FM+B AM+B

L L OFF OFF OFF

H (L) L (H) ON ON OFF

H H ON OFF ON

Truth table 3

MOSW LO/EJ CD mechanism operation

L H Load

H H Eject

- L Lo/Ej invalid truth

Hi-Z H Brake

Truth table 4 (destination setting)

destination ports

model destination TYPE2 TYPE1 TYPE0

KDC-MP222 K - 0 0

KDC-MP4023 M (E) - 0 1

KDC-M4524/G/Y/GY E/E2 - 1 0

1. How to enter the test mode

While holding the Preset 1 and Preset 3 keys, reset the

unit.

2. How to exit from the test mode

Reset the unit, ACC OFF, power OFF and Panel detached.

(Note) The test mode cannot be terminated by momen-

tary power down.

3. Initial status in the test mode

•Sources : ALL OFF

•Display : All segments are lit.

•Volume :-10 dB (displayed as "30")

•Loudness : OFF

•CRSC :OFF regardless of the presence of

switching function.

•SYSTEM Q : Flat

•BEEP : When pressing any keys, the buzzer

generates a beep at any time.

•SYSTEM Q MENU: OFF

4. Special display inTuner mode

When any of the following messages is displayed in Tuner

mode, the F/E may be abnormal.

•"TNE2P NG" :The EEPROM is set to the default (un-

stable values) because the F/E was shipped without

passing through the adjustment process, etc.

•"TNCON NG" : Communication with the F/E is not pos-

sible.

TEST MODE

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5. Forced switching of K3I

Each press of the Preset 6 key inTuner mode should switch

K3I from AUTO →Forced Wide→Forced Middle →Forced

Narrow →AUTO.

The initial status is AUTO and the display shows these

modes as follows.

•AUTO : FMA

•Forced Wide : FMW

•Forced Middle : FMM

•Forced Narrow : FMN

6.Test mode specifications of the CD receiver

•Forced ejection is inhibited in the reset start operation.

When the unit is reset while a CD is loaded in it, the CD

is not recognized by resetting.

•Each press of the Track Up key jumps to the following

track numbers:

No. 9 →No.15 →No.10→No.11 →No.12 →No.13 →

No. 14 →No.9 (The cycle restarts from here.)

•Each press of the Track Down key jumps to the previous

track number to the track being played.

•When the number of total trucks of the MP3 disc is less

than 9, 1st truck is played.

•When the disc media is CD, a short press of the Preset

1 key jumps to the track number 28.

7. Audio-related specifications

•A short press of the Q key initiates the audio adjustment

mode.

•Pressing the ✽key on the remote initiates the audio ad-

justment mode.

•Fader is selected to the initial item.

•Continuous holding of a remote control key is inhibited.

•Bass, Middle and Treble are adjusted in 3 steps of Min/

Center/Max with the Track Up/Down keys.

•Balance is adjusted in 3 steps of Left Max/Center/Right

Max with the Track Up/Down keys.

•Fader is adjusted in 3 steps of Rear Max/Center/Front

Max with the Track Up/Down keys.

•Bass f/Bass Q/Bass EXT/Middle f/Middle Q/Treble f are

not death with by the audio adjust.

8. Menu-related specifications

•A short press of the PLAY/PAUSE key initiates the Menu

mode.

•Pressing the DNPP/SBF key on the remote initiates the

Menu mode.

•Continuous holding of a remote control key is inhibited,

a short press initiates the Menumode.

•Contrast is adjusted in 3 steps of 0/5/10, with the trackup/

down keys.

9. Backup current measurement

When the unit is reset while ACC is OFF (i.e. by turning

Backup ON), the MUTE terminal goes OFF in 2 seconds

in place of 15 second. (The CD mechanism is not acti-

vated at this time.)

10. Special display when the display is all on

Pressing the Preset keys while the power is ALL OFF dis-

plays the following information.

Version display

PRESET 1 (8 digits, Month/Day/Hour/Minute)

(Display) SYSxxxxx : System microcomputer

Short press : View power ON time.

(The All OFF period is not counted.)

PRESET 3 Long press/hold :Clear power ON time at

the power ON time displaying.

(Display) PonTim xxxxx Max.60000 (hours)

Short press : Display CD operation time.

PRESET 4 Long press/hold :Clear CD operation time at

the CD operation time displaying.

(Display) CDTimxxxxx Max. 60000 (hours)

Short press : Display CD ejection count.

PRESET 5 Long press/hold : Clear CD ejection count at

the CD ejection count displaying.

(Display) EjeCnt xxxxx Max. 60000 (times)

Short press : Display Panel open/close count.

PRESET 6 Long press/hold :Clear Panel open/close

count at the Panel open/close count.

(Display) PnCnt xxxxx Max. 600000 (times)

11.Other specifications

LINE MUTE inhibit time is 1 second from 10 second when

start up the test mode.

12.Switching the frequency span (K/M type)

While holding the preset qkey and preset tkeys, reset

the unit.

13.Response to OEM setting (destination of elec-

tronic volume setting)

S03F/E models are response to OEM models option at

put in µ-com 2 pin.

Its setting re following steps.

TEST MODE

IC2-TYPE0 IC2-TYPE1 Description

(41pin) (40pin)

Low Low qTrade model (initial quantif)

Low High wTrade model (CRSC Change)

High Low eOEM model-ready CRSC change

High High rOEM model-ready CRSC &

de-emphasis

KDC-M4524/G/Y/GY

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ABCDE

1

2

3

4

5

6

7

+

TEST

IFC

NOISE

SMETER

RST

SCL

SDA

C115

C117

C211

C255

C256

C258

C309

R8

R355

R356

C201

C202

C251

C252

C253

C254

C257

C301

C302

C303

C351

C352

L3

L5

L6

L7

L8

L10

R9

R31

R171

R172

R173

R174

R175

R176

R180

R181

R182

R183

R301

R302

R303

R304

R305

R306

R307

R308

R309

R310

R311

R351

R352

R357

R358

R374

X3

W12

W9

W7W4

W6

W3

13

9106 7 5 1 1

8

9

25

242

11 12 8 4 3 2

W2

W10

W11

W8

W5

W1

W

W15 W17

R202

9

8

C118 C114

16

1R112

R113

R114

C116

C203

R201

R203

C204

C206

C212

C213

14

R207

R208

R403

R153

R52

R102

R104

R154

R206

R106

R101

100 1

R152

R51

C4

0

R54

R53

R58

R56

C407

R63

224

231

15 1

1

24

1

2

14 2

R160

R60

R61

R62 R55

R59

2526

R409

R420

R410

C4

0

X1 R419

R415

28

1

C210

R256

15

14

C205

58

14

1

R404

R315

R401

C111

C304

7675

8

7

R402

R405

R406

R317

R255

R27

R28

R417

R10

BEE

C5

R11

R24

R251

R26

R25

50

R412

C4 R7

C3

R6

R4

R5

R411

EB

IC4

IC7

IC1

IC2

IC10

IC6

J4

A1

CN2

J3

J2

D31

D51

D52

D201

D202

D251

D252

D254

D255

D301

D302

D303

D304

D305

D306

D307

D308

D309

D310

D311

J5

P1

D151

D155

D156

D157

D158

D159

D160

D161

D162

D2

D4

D203

D206

D269

D270

D271

D154

D153

D152

CN4

Q350

Q23

Q3

D26

Q2

ELECTRIC UNIT (X25-9622-71/9812-70) (J74-1466-12)

PC BOARD (COMPONENT SIDE VIEW)

▼

▲

KDC-M4524/G/Y/GY

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1

2

3

4

5

6

7

9

L1

GND

R

ST

VDD

C21

C43

C44 L12

C26

L11

C1

C41 C42

C22

C23

C24

C25

C27

C28

C29

C409

R8

R22

R23

R13

3

1

6

1

R407

W12

W23

W30

1

16

8

9

W22

W26

W21

W19

W16

W28

W31

W29

W20

W27

W18

W25

W14

W13

W24

W32

B

112

51

E

W15 W17

C405

C407

2

13

4

R409

C406

R410

X2

C408

X1 R419

R415

R27

R28

R417

R412

7

C3

R6

R4

R5

R411

R416

R44

C45

R43

R42

R41

EB

IC3

IC8

IC9

Q21

D1

D3

D21

D22

D23

D251

D252

D253

D254

D255

J1

D2

D401 D41

Q41

▼

▲

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

IC Q Address

15E

24C

34G

42D

64D

85F

95G

24E

34E

21 2H

23 4E

41 5G

350 3B

IC Address

22J

D24

D20

D18

D10

D16

D19

D15

D11

D12

D7

D8

D9

D17

D1

D14

SWITCH UNIT

X16-2052-71/2362-70 (J74-1464-02)

D13

IC2

D23

K13

K15

KS4

KS3

KS5

KS2

VOL-

VOL+

KI1

KI4

KI2 13

54

145 46 68

ATT 12345 6

RST CLK TI AUD

FM

AM

SRC

KDC-M4524/G/Y/GY

ELECTRIC UNIT

(X25-9622-71/9812-70)

SWITCH UNIT

(X16-2052-71/2362-70)

w

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6

3

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3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

10

KLMNO

1

2

3

4

5

6

7

R1

C30

W101

R312

R103

R414

R314

R313

R210

R209

R252

R408 R64

R65

R205

R3

R2

C31

R32

R257

R254

R264

R253

C410 R12

R21

BEE

R161

R162

R105

R211

R204

R33

TH1

W102

BE

EB

BE

EB

D402

Q401

Q4

Q1

Q22

D24

D25

Q151

Q201

D257

D256

D258

ELECTRIC UNIT (X25-9622-71/9812-70) (J74-1466-12)

PC BOARD (FOIL SIDE VIEW)

▼

▲

KDC-M4524/G/Y/GY

w

.

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i

a

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y

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1

6

3

.

c

o

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Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

11

C112 C113

C356

R115

R111 C106

EB

EBEB

Q101

Q351

Q352

▼

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

IC Q Address

14S

14T

Q Address

13M

44M

22 3K

151 7M

201 4O

351 3Q

352 3Q

401 7K

D30

J1

D31

D32

D25

SWITCH UNIT

X16-2052-71/2362-70 (J74-1464-02)

R22 C9

C7

C6

R30

R20

R24

R25

R31

R35

R34

R33R32

R36

R28

C12

C10

C3

R14

R15 C2

C1

R16

R19

R4

R26

R23

R5

R21

R3 C4 C5

R17

R1

R18

IC1

C11

Q1

EB

BE

Q3 BE

Q2

1

25

26

50 51

75

76

100

KS2

KS4

ESD-GND

SW5V

D-GND

REMO

DI

CL

142

151

CE

DO

L-INH

VLCD1

KI5 KI1

KS3

K12 ILL+B

ILL GND

RESET

KS5 KI4

KI3

PANEL-5V

TSRQP

1

2

3

4

5

6

7

IC Q Address

25T

36T

ELECTRIC UNIT

(25-9622-71/9812-70)

SWITCH UNIT (X16-2052-71/2362-70)

KDC-M4524/G/Y/GY

w

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x

i

a

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1

6

3

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c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

12

UVWXY

1

2

3

4

5

6

7

R31

R25

R36

R64

R14 C31

R42

C16

C18 R21

R20

R17

C17

R34

C30

R29

C29

R19

R16

R43

R78

R41

R40

R33

R32

R24

L1

C15

C26

C84

C77

C61

C82

C81

C80

C79

C1

C2

BE

C44

R48

C4

CP24

R68

C86

C22

R26

C20

R23

C33

C83

C58

X1

R65

1

13

54

40

20

21

R56

C53C48

R74

R75

R49

CP1

CP14

CP10

CP21

CP20

CP15

CP7

CP13

CP2

CP6

CP12CP11 CP9

Q1

EB

Q2

1

25

75

76100

51

26 50

IC9

S1

S2

IC13

IC10

1

15

30

16

S3

IC4

S4

3

1

4

5

IC1

CD PLAYER UNIT

X32-5410-00 (J74-1487-12)

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

PC BOARD (COMPONENT SIDE VIEW)

IC Q Address

13V

46W

13 2V

IC Q Address

14W

25X

CD PLAYER UNIT (X32-5410-00)

KDC-M4524/G/Y/GY

w

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i

a

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1

6

3

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c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

13

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

ADACABAAZ

1

2

3

4

5

6

7

PC BOARD (FOIL SIDEVIEW)

C87

C78

C47

R52

L5

C28

R76

R27

CP4

R28

SO0

D-MUTE

SGND

S7.5

MD

FD

R22

C21

C27

5

1

5

1

C25

C23

C24

C42

C70

C65

R71

C67

C74

B

C

A

RFI

D

E

F

FE

VR

PD

A8V

TE2

VC

ASY

EFM

ATEST

IOP-

TE VREF

EARF

FRF

IOP+

63

62

61

60 59

58

RFOK

RZM

LZM

TBC

AGND

C75

R69

R67C68 C76

R70

C56

R59

R73

R46

C88

R53

R13

X3

R60

R58

C12

C8

C6

C9

C43

C72

C73

L4

C66

C71

C69

R45

2.5V C40

C46C38

R77

R37

R35

R30 R39

R38

C32

C39

W1 R18

C3 EFLG

C54

CP8

C60

C37

R47

L2

R4

SDA

SCL

SD

TD

VPP/PON

uGND

BU5 /RST

C19

R61

R72

CP18

CP19

C85

R66

R50

R51

R2

C63

C59

C57

R57

F-

T+

T-

F+

LD

ADGND

TD

FD

SD MD

SLD+

SLD-

DGND

D4.7

SPD-

SPD+

E2P-WR

R55

C45 C34

C41

C36

C35 R11 R12

C13

R10

R6

R1

R3 C5

C11

C51

C7

R7

R9

R5

R8

C10

C64

C50

C52

C55

R63

R62

1

16

D1

Q4

CN2

CN1

B

E

24 12EJE

/CLK

Lch DATA

LOS

Rch

LE/LM

LO/EJ

MOTOR

1

14

8

125

75 51

26

50

100

76

X2

1

7

1 36

108 73

37

72

144

109

14

85

IC2

17

14 8

IC12

IC6

IC8

IC7

IC5

IC11

CP5

CP22

CP17

CP16CP23

Q3

B

E

Q5

B

E

D2

CD PLAYER UNIT

X32-5410-00 (J74-1487-12)

IC Q Address

24AC

6 5AA

7 5AB

85AC

IC Q Address

11 3AB

35AC

43Z

56AC

CD PLAYER UNIT (X32-5410-00)

KDC-M4524/G/Y/GY

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

14

ABCDE

1

2

3

4

5

6

7

4.7K

22K

47K

10K

98

R176 1K

R181 10

R374

1

2

1K

SCOUT

C118

680P

MODE

10u16

C114

0.01

C115

SW2

D-OUT

2

1

R51 2.2K

GND

8

AUDIO+B

MS-DA

MS-CLK

SW1

5

4

3

Lch

7

6

MUTE-L

11

MUTE-R

Rch

10

9

M-STOP

M-RST

13

12

D4.5V

19

BU5V

SW3

N.C

16

15

14

DGND

18

17

SERVOGND

SERVO+B

22

MOSW

LO/EJ

21

20 23

R54 1K

R52 2.2K

R53 1K

R62 100K

R61 100K

R58 2.2K

R56 1K

R55 1K

R65 4.7K

R59 100

R60 2.2K

R64 4.7K

R63 2.2K

0.01

CIN

VSSA

VDDA

MPX

VREF

RDDA

QUAL

2.2u50

C117

C116

330P 4

7

6

5

3

2

1

10

11

12

13

14

15

16

VDDD

SYNC

VSSD

OSCI

OSCO

TCON

RDCL

S-METER

IF1 GND

IF+B 24

23

AMIF OUT

AUDIO OUT

RDS OUT 19

20

21

22

R111

4.7K

2.2K

C113

27P

X3

4.332MHz

R113

2.2K R114

R112

2.2K

1000P

2.2K

C111

R106

3

11

15

SCL

NOISE OUT

VDD 5V

DIG GND 16

17

18

PLL +B

IFC OUT

SDA

12

13

V1

14

7

OSC GND

W/N

OSC GND 8

10

9

OSC GND

AM ANT

AM +B

FM +B

4

5

6

C106

L7

4.7uH

L6

4.7uH

FM ANT

RF GND 2

1

L5

4.7uH

52mH

L3

R104 470

R102 470

R105

4.7K

R357

100

C351

10u16 R351

270

R355

30K

L10

C211

47u10

C210

0.01

R203

4.7K

CASSR

RFOUT

4.7uH

CASSL

CREF

VREF

1

4

3

2ACOUTL

LFOUT

ACOUTR

28

25

26

27

10

CDGND

CDR

7

6

5

AFS

RH-

CDL

9

8

RROUT

LROUT

SDA

GND

VDD

MPOUT

MPIN

LEVEL

MPX

AM

12

11

14

13 QUAL

SMUTE

SCL

MUXL

MUXR

19

22

23

24

20

21

17

18

15

16

C212

0.1

∗R206

1K

C213

0.1

R202

4.7K

CLK

10

MUTE

CH-CON

A. GND

REQ H

B.U.

GND

R358

100

C352

10u16 R352

270

R356

30K 3

6

4

5

9

2

1

1113

Rch

Lch

DATA C

REQ H

GND

A. GND

DATA H

B.U.

CH-CON

MUTE

RST

R303

100

C303

47u10

C302

0.47u50

R306

4.7

R302

R307

4.7K

10

7651

812 342

13

84

73

12

11

62

51

10

9

REQ C

0.47u50

C301 10

R301

C256

33u10

C252

W102

OUT1+

OUT2+

OUT2-

OUT1-

1

RR+

RR-

FR+

FR-

5

TAB

3

7

9

PGND2 2

10

8

4

6

STBY

VCC1

SVR

PGND1

33K

R251

1u50

C255

47K

R252

86

68

95

96

94

88

85

69

G

R

L

100K

R315

0.01

C304

100K

R314

R310 100

RST

REQ C

DATA C

DATA H

CLK

12 Lch

13

9

11

10

8 Rch

7

R311 100

R304 10R317 4.7K

RL

RR

R101 1K

4.7K

R103

1

100

84

82

87

2.2K

R115 27P

C112

2.2u50

C309

2.2u50

C201

2.2u50

C202

L

G

R

0.01

C204 0.022

C203

RL

FL

RR

FR

R207 1K

R208 1K

R209 10K

R210 10K

5

4

63

4.7K

R204

SDA

SCL

150P

C206 0.47

C205

D4.5V

24

91

90

29

28

25

24

27

23

22

SCL

SDA

14

PANEL

13 11 9 7 5 3 1

ILL GND

PAN5V

D GND

L-DE

L-DATAL

RST

LED+B

L-INH

L-DATAS

L-CLK

SW5V

REMO

26481012

15

ESD-GND

RST

15

97

98

99

13

3

10

47

R172

1K

R183 2.2K

R160

470

R154

470

R152

470

R173

470

R175

1K

R171

470

R153

100

R174

1K

R180

1K

R182

89 100K

R162

10K

R201

1K

R211

2.2K

R205

14

VCC

AIN3

AIN1

AIN2

1

CIN2

12

13

11

AOUT

CIN3

9

10

8

CIN1

COUT

BIN3

BIN1

BIN2

3

2

4

BOUT

GND

6

5

7

85 26

31

L8 4.7uH

C356 0.1

R161 2.2M

20

22

20

L12

ON/OFF

5

GND1

4

3VOS

SWOUT

2

1VIN

C42

100u25

C41

100u25

C43

220u16

C44

47K

R41

C45

0.22

47K

R42

47K

R43

1.5K

R21

C21

47u16

Q41

45

6

2

11

12

2

83

R312 100K

100K

R313

4.7K

R309

4.7K

R305

4.7K

R308

+

Q151

D156

P1

D162

D161

D160

D159

D155

D158

D157

D152

D154

D153

CN4

D51

CN2

D52

Q101

A1

J4

Q351

J3

D203

D201

D202

Q350

D206

Q201

D310

D311

Q352

J2

D309

D308

D306

D307

D304

D305D302 D303

D301 D258

D256

D252

D254

Q22

Q21

RDS DEMODULATOR

∗ B

BUFFER

E-VOL &

N.C. MPX

NOISE BUFFER

PRE

SW

MUTE

POWER

IC

ANALOG SW

(MUTE LOGIC)

PANEL 5V

SW

SERVO

+B AVR

SW 14V

WIRED

REMO

∗ C

D151

AVR SW

MECHA 5V

CD MECHA

+B

D41

Q41

D21

MUTE DRIVER for

AUDIO MUTE SW

to CD MECHANISM

REAR

PRE MUTE

IC7

IC2

IC4

IC6

IC9

(X25-9622-71/9812-70)

6.7V

0V

14.3V

4.9V

6.7V

0V

5V

2.5V

5.0V

0V 0V

5.0V

4.0V

0-4.9V

4.1V

5V

0V

8.1V

5V

0V

4.1V

5V

0V

4.9V

5.0V

0V

5.0V

0V

7.4V

14.3V

5.0V

0V

13.4V

X25-9622-71/9812-70 (1/2)

KDC-M4524/G/Y/GY

w

.

x

i

a

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1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

15

JIHGF

1

2

3

4

5

6

7

47K

0K

R181 10

R404 100K

R403 100K

R402 100K

R401 100K

R406 100K

R405 100K

C256

33u10

0.22u50

C252 OUT1+

OUT1-

FR+

FR- 7

910

8

VCC1

SVR

PGND1

L11

4.7uH

N.C REGC

IC2-SDA

TDF-DET

100 PLL-DATA

2PLL-CLK

1

AFS

4

3

L-CLK

L-DATAS

L-DATAL

CH-CLK

CH-DATAH

CH-DATAC

N.C

99

98

97

96

95

94

93

10

IC2-SCL

7

6

5

BEEP

N.C

9

8

15

14

13

12 R DATA

R QUAL

REMO

11

L-INH

N.C

L-CE

R408

100K

MUTE

LOE/LIM SW(SW3)

M MUTE L

M MUTE R

RESET

XT2

N.C

20

19

18

17

16

TEST

N.C

DSI

N.C

21

25

24

23

22

LO/EJ

MOSW

M RST

M STOP

26

N.C

27

28

29

XT1

30

31

32

33

PRE MUTE

(DC DET)

IFC-OUT

12EJE SW(SW2)

LO.S SW(SW1)

KEY-REQ

CH-REQC

R CLK

CH-REQH

CH-MUTE

92

91

90

89

88

87

86

85

NOISE

S-METER

N.C

84

83

82

81

80

79

78

77 N.C

76

72

73

74

75

AVREF

PHONE

66

67

68

69

70

71

CH-CON

AVCONT

N.C

CH-RST

61

62

63

64

65

N.C

ACC DET

CLKOUT

IC2 TYPE1

IC2 TYPE0

TYPE1

TYPE0

CD MECHA+B

SW5V

PS2-0

PS2-1

PS1-0

N.C

X2

X1

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

PS1-1

55

56

57

58

59

60

(SVR)

P-MUTE

P-STBY

N.C

51

52

53

54

N.C

PS1-2

BE DET

50

C406

0.1

R410

32.768kHz

R420 10K

X2

100K

C408

27P

R407

240

∗

R411 100K

∗

R416 100K

∗

R417 100K

∗

R412 100K

R409

15K

R419 100K

R415 100K

20.000MHz

X1

C409

47u16

10K

R7

100K

R9

33K

R6

10K C31

0.01

∗

R32

R31

R2

36K

R25 1K

R13

5.6K

R28 1K

R27 1K

R26 1K

1K C30

ILM

SW2

SW1

12

11

10

2

VBU

VDD

VCC

AUDIO

AM

FM

PANT

PCON

6

9

8

7

5

4

3

GND

1

R33

47K

∗

W101

∗

R23

4.7K R22

4.7K

C251 0.22u50

C253

0.22u50

C254

0.22u50

R254

R253

10

4.3K

C257

1u50

OUT4+

OUT3-

OUT4-

SGND

OUT3+

19

FL+

11

13

IN1

17

15 IN3

RL+

FL-

RL- 23

21

25 HSD

20

16

18

12

14

IN4

IN2

ACGND

PGND3

22

24

MUTE

VCC2

PGND4

FR-

RL+

FL+

RL-

FL-

FR+

RR-

RR+

P-CON

11

6

REAR L+

FRONT L+

FRONT R-

REAR L-

FRONT L-

9

810

7

REAR R+

REAR R-

FRONT R+

P-ANT

12

513

4

PHONE

ACC

GND

1514 23 16

1

B.U.

FUSE

2200u16

C1

1

FR

FL

RL

RR

R257 4.3KR255 220

TH1

22K

R256

C258 1u50

59

9

31

ILL GND

PAN5V

D GND

2

140uH

L1

0.01

C5

10K

R10

0.01

C4

1/2W

3.3K

R8

100K

R11

10u25

C22

10u25

∗

C23

10u16

C24

10u16

C29

10u16

C25

10u25

C26

220u16

C28

48

47

50

49

10u50

C27

++

51

∗

R24

EVSS

EVDD

VSS

VDD

AVSS

AVDD

BVSS

BVDD

22P

C407

C405 1

VOUT

VDD VSS

NC 3

4

2

1

25

24

23

22

47K

4

5

2

15

13

10

3

59

60

9

53

74

100K

R3

R5 10K

1000P

C3

3

2

R1 82K

R4 20K

+

6

2

69

68

53

52

74

82

84

87

100 99

89

83

90

60

63

45

31

51

RST

48

47

49

50

1

12

11

29

28

27

26

94

96

95

97

98

91

85

86

88

52

3

2

MODEL NAME

KDC-MP222

KDC-MP4023/G

KDC-M4524/G

KDC-M4524Y/GY

K

M

E

E2

UNIT No.

X25-9620-10

X25-9620-21

X25-9812-70

X25-9622-71

A

NO

YES

BC

NO

YES

NO

C23

YES

NO

R23 R24,

NO

YES

NO

411 R32

100K

22K

100K

22K

R412

YES

NO

YES

YES NO

NO

YES

R417

YES

NO

R206, Q23

NO

YES

NO

NO YES

YES

NO

25

D23,

YES

NO

YES

W101

ANT CONT 413

P.CON

RR+

RR-

FR-

FR+

FL-

FL+

RL+

RL-

1

B3

24

57

68

1

2

A3

4

B.U

5

68

7

ACC

GND

BLU/WHT

215

BLK 116 YEL

RED 314 BRN TEL MUTE

ANT CONT

ACC

GND

9

8

GRN/BLK

VIOL/BLK

FL+ 8 9

BLU/WHT

WHT/BLK

GRY/BLK

FR+

P CONT

FR-

FL-

GRY VIOL

512

6

711

10

WHT GRN RL+

RR+

RL-

RR-

GRN/BLK

VIOL/BLK

13

4

BLU/WHT

P. CON

RED

21

BLK

15 16

YEL

3

14

WHT/BLK

GRY/BLK

FRONT R

FRONT L

11

6

GRY

BLU

5

12

VIOL

7

10

B.UP

REAR R

REAR L

WHT GRN

46

Q3

R44

85

0.01

C410

100K

R264

47K

R12

416

+

151

D252

D401

D402

Q401 D51,52,152-155,160,161,

B30-1567-05

HZS12A2

MA4062-L or

HZS6C1

1SS133

D1F60

S1J or

2SC4081

2SA1036K

2SD2396

2SD1819A or

2SD2375 or

UMC2N

KRC410

UN5216 or

DTC143TUA or

KRA307

KRA303

UN5114 or

DTA114YUA or

UN5112 or

DTA124EUA or

Q350

Q151

:

:D402

Q1-3,41,201,401

Q22,23

Q101,351,352

Q21

Q4

:

203,206,269-271,401

301-308,311

D151,157-159,162,

D256-258

D156 :

:

HZS5B1

AM01Z or

MA4047-M or

DAN202K or

MA152WK or

KDS184

DSM1SD2 or

ERA15-02

D1F60

SFPB-54V

MA4082(N)-L or

HZS9A1L

MA4068(N)-M

1N5393G-M6 or

S2V20

∗

A

UPD703030GC011

TDA7407D

BA4911-V4

TDA7560

HD74HC27FP

SAA6581T

PST3436UL

SI-8050JD

IC8 :

D22,23,251-255

D24,25

D31

D41

D26

:

D2-4,201,202,309,310

D21

IC9

D1

:

IC2

IC7

IC3

IC4

IC6

IC1 :

:

Q3

D4

Q2

Q1

D3

D31

D2

Q4

D26

∗

Q23

D24

∗

D25

∗

D23 D22

D1

D271

D270

D269

D255

D251

D253

D257

J1

J5

SERGE

B.U.

ACC

TEL

SW for

SUPPLY IC

POWER

SW

5V

RESET

IC

DSI

SYSTEM

u-COM

POWER SUPPLY IC

DET.

MUTE

ILLUMI

SW

GND LINE

SIGNAL LINE

B LINE 2/2

J1

X16-

(X25-9XXX-XX)

∗

A

IC1

IC8

IC3

A

KDC-M4524/G (1/2)

KDC-M4524Y/GY (1/2)

DC CORD

(B30-4790-05)

DC CORD

(B30-4784-05)

(B30-6131-05)

(B30-6134-05)

0V

6.7V

0V

4.3V

14.3V

6.7V

5V

0V

14.0V

0V

14.0V

8.1V

7.9V

8.1V

14.3V

5.0V

13.1V

10.3V

1V

3V

VDD 5V

1V

3V

5V

VDD 7V

4.6V

0V

5V

0V

5V

0V

5.0V

3.3V

0V

5.0V

0V

0V or 5.0V

5V

0V

0V or 5.0V

5.0V

0V

5V

0V

5.0V

0V

5V

0V

5V

0V

5V

0V

5V

0V 5V

0V

5V

0V

5V or 0V

0V

5V

0V

5V

5.0V

0V

5V

0V

5V

0V

0.6-4.2V

0-4.9V

0-2.2V 5V

0V or

0V

5V

0V

5V

0V

5V

0V

5V

0V

5V

0V

5V

0V

5V

0V

X25-9622-71/9812-70 (2/2)

CAUTION : For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list).

Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measurements shall be

carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer.

•DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual

instruments or/and units.

KDC-M4524/G/Y/GY

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

16

KLMNO

1

2

3

4

5

6

7

X16-2052-71/2362-70 (1/2)

10K

TP35

S30

S6

COM7

COM8

COM4

COM5

COM6

COM1

COM2

COM3

S3

S1

S2

S5

S4

SEG1

SEG3

SEG2

SEG4

SEG5

SEG6

S18

S12

S9

S7

S8

S10

S11

SEG9

SEG7

SEG8

SEG10

SEG11

SEG12

S15

S14

S13

S17

S16

SEG13

SEG14

SEG15

SEG17

SEG16

SEG18

S24

S21

S20

S19

S22

S23

SEG19

SEG20

SEG21

SEG23

SEG22

SEG24

S27

S26

S25

S29

S28

SEG25

SEG27

SEG26

SEG30

SEG29

SEG28

SEG39

S36

S33

S32

S31

S35

S34

SEG32

SEG33

SEG31

SEG35

SEG36

SEG34

S37

S38

SEG37

SEG38

SEG45

S41

S40

S39

S44

S43

S42

SEG42

SEG41

SEG40

SEG44

SEG43

S46

S47

S45

S48

SEG48

SEG47

SEG46

2

1

5

4

3

8

7

6

9

11

10

12

13

14

17

15

16

18

19

20

21

22

23

25

24

26

27

28

29

31

30

32

33

35

34

38

37

36

40

41

39

43

44

42

45

48

47

54

51

49

50

52

53

55

56

46

C3

COM7

COM8

COM4

COM5

COM6

COM1

COM2

COM3

SEG3

SEG2

SEG1

SEG6

SEG5

SEG4

2

1

5

4

3

8

7

6C4

C5

C8

C7

C6

11

10

9

14

13

12

SEG9

SEG8

SEG7

SEG12

SEG11

SEG10

SEG15

SEG14

SEG13

SEG18

SEG17

SEG16

SEG21

SEG20

SEG19

SEG24

SEG23

SEG22

SEG27

SEG26

SEG25

SEG30

SEG29

SEG28

C2

C1

17

16

15

20

19

18

23

22

21

26

25

24

29

28

27

32

31

30

35

34

33

38

37

36

SEG39

SEG33

SEG32

SEG31

SEG36

SEG35

SEG34

SEG37

SEG38

SEG45

SEG42

SEG41

SEG40

SEG44

SEG43

SEG48

SEG47

SEG46

SEG50

SEG49

47

41

40

39

43

42

44

45

46

53

50

48

49

51

52

56

54

55

57

58

8

15

9

3

13

7

6

2

4

1

ILL+B

ILL GND

RESET

REMO

L-INH

NC

CE

DO

SW5V

KI1

KI

2

KI

3

KI

4

KI1

KI4

KI3

KI2

KI

5

75

74

73

72

71

70

69

68

67

66

65

64

63

62

61

60

59

58

57

56

55

54

53

52

51

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

27

26

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

KS5

KS4

KS3

KS2

KS1

COM1

COM2

COM3

COM4

COM5

COM6

COM7

COM8

COM9

COM10

S60

S59

S58

S57

S56

S55

S54

S53

S52

S51

S45

S44

S43

S42

S41

S40

S39

S38

S37

S36

S35

S34

S33

S32

S31

S30

S29

S28

S27

S26

S1

S2

S3

S4

S5

S6

S7

S8

S9

S10

S11

S12

S13

S14

S15

S16

S17

S18

S19

S20

S21

S22

S23

S24

S25

KI5

P1

P3

P2

P4

VDD

VLCD

VLCD0

VLCD1

VLCD2

VLCD3

VLCD4

VSS

TEST

OSC

INH

DO

CE

CL

DI

S4

S3

S2

S1

S10

S8

S7

S6

S5

S9

S15

S14

S13

S12

S11

S20

S19

S18

S17

S16

S21

S22

S23

S38

S34

S32

S31

S33

S36

S35

S37

S46

S42

S40

S39

S41

S44

S43

S45

S47

S50

S30

S29

S60

S59

S58

S57

S56

S55

S54

S53

S52

S51

C4

C1

C8

C2

C3

C7

C5

C6

KS4

KS3

R17

0.22

R16

0.22

R15

S49

S48

S25

S24

S50

S46

S47

S48

S49

28

29

30

31

32

S28

S27

S26

79 KI3

78 KI2

KI4

80

KI1

77 KS6

76

KI5

84

83

14

PANEL 5V

96

98

99

100

1000P

R3

4.7K

4.7K4.7K

R14

4.7K

2.2

ESD-GND

D-GND

12

5

VO

VCC

GND1

GND3

5

4

1

3

KS5

C2

C3

C4

C5

TP36

T

97

R28

390

0.1

C10

C1

3.9K

R1

TP22

TP31

TP21

TP26

TP25 1K

R36

96

TP30 97

R32

1K

TP29 98

470

R33

DI

CL

470

TP27

TP28

11

10

100

99

470

R34

R35

Q1

2

GND2

R31

1K

TP33

R30

47

TP24

PANEL-SW

30K

C6

2.2

TP32

C12

1000P

KS2

J1

1/2

to

J1

Q1

X89

LCD DRIVER

KEY-SCAN

START SW

D31

D32

D30

D25

S17 RESET

REMOTE SENSOR IC

SWICTH UNIT (X16-2052-71/2362-70)

ED1(SEGMENT)

ED1(COMMON)

B

IC1

IC2

0V

5.0V

5V

0V

5V

0V

5V

8.6V

5.0V

1.7V

3.4V

5.1V

0V

5V

5.0V

0V

5V

0V

6.8V

2.5V

5V

0V

KDC-M4524/G/Y/GY

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

17

TSRQP

1

2

3

4

5

6

7

CAUTION : For continued safety, replace safety critical components only with manufacturer's recom-

mended parts (refer to parts list).

Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance

measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before

the appliance is returned to the customer.

•DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to

variations between individual instruments or/and units.

X16-2052-71/2362-70 (2/2)

2SD2396 DTC143TUA

UN5111

UN5114

UN5216

2SA1036K

2SD1819A

2SD2114K

2SC4081 DTA114EUA

DTA124EUA

DTA143EUA

DTC124EUA

UMC2N DAN202K

DAP202U

DTA114YUA TC74HCT7007AF

MCH6101 NJM4580V

SEG51

SEG45

S44

S46

S47

S45

S49

S50

S48

SEG48

SEG47

SEG46

SEG49

SEG50

SEG57

S52

S53

S51

S55

S56

S54

SEG54

SEG52

SEG53

SEG55

SEG56

S59

S58

S57

S60

SEG60

SEG58

SEG59

60

54

53

57

55

56

59

58

66

63

62

61

65

64

68

67

59SEG51

SEG48

SEG47

SEG46

SEG50

SEG49 56

54

55

57

58

SEG57

SEG54

SEG53

SEG52

SEG56

SEG55

SEG60

SEG59

SEG58 65

62

60

61

63

64

68

66

67

330

R18

KI1

KI2

KI3

KI4

2.2K

R4

KI5

8

4

2

1

3

6

5

7

6

2

0

9

1

4

3

5

7

0

9

2.2K

R5

9

8

7

6

330

R20

510

R21

510

R22

390

84

83

KDC-M4524Y

MODEL NAME UNIT No.

0.01

0.01 R23

390

KDC-M4524YG

X16-2362-70

Q2,3

C9

C11

TP15

TP5

TP14

TP4

TP13

TP3

TP12

TP2

TP11

TP1

R19

0.01

C7

220

R25

E2

KS2

KS3

TP7

TP17

TP16

TP6

KS4

TP18

TP8

TP19

KS5

TP9

R26

510

R24

220

KDC-M4524G

KDC-M4524 E2G

EG

E

X16-2052-71

5

3

4

Q2

IC1 : LC75808W

IC2 : PNA4S22M

Q2,3 :

DTA114EUA or

Q3

MA3082-H

D30 :

D25 :

Q1 :

B30-1605-05D7-20 : B30-1564-05D23,24 :

KEY-

SW

MA3062WA

D23

D24

ILLUMINATIONS

2SD2114K

D16

D17

D12

D9

D19

D11

D14

D8

D15

D10

D13

D7

GND LINE

B LINE

D1

S1

S2S4

S3

S6

S5

S10

S9

VOL+

VOL-

ATT

S11 S14S12 S13 S15

2

1

S22

S23 S27

S26

S24 S25

FM

AM

SRC

S7

S8

CLK

S18 S16

6

S19 S21

S20

AUD

TI

GREEN

RED

D18 D20

UN5111

B38-1633-05D1 :

MA8062D31,32 :

KDC-M4524/G/Y/GY (2/2)

KDC-M4524/G/Y/GY

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

18

UVWXY

1

2

3

4

5

6

7

22K

10K

4.7K

22K

4.7K

0V

5.0V

0V

5V

0V

5.0V

0V

5.0V

3.3V

5.0V

0V

5.0V

0V

3.3V

0V

3.3V

0V

5.0V

0V

5.0V

0V

5V

5.0V

0V

5.0V

0V

3.3V

0V

5.0V

0V

5.0V

0V

5.0V

0V

5.0V

1.65V

0V

7.5V

0V

1.65V

7.5V

5.0V

0V

3.3V

0V

5.0V

0V

IC6

IC8

IC7

IC1

IC4

(X32-5410-00)

MECHANISM CONTROL/

MICRO PROCESSOR

Q2

3.3V AVR

LEVEL

SHIFT

(3.3V-5V)

DM1 (X92- )

MOTOR

SPINDLE

M

LOE/LIM SW

S3

8EJE SW

∗S4

D.5V SW

(AUDIO)

3.3V AVR

LOS SW

12EJE SW

S1

S2

CN1 Q5

A.8V SW

Q3

DM2 (X92- )

SLED MOTOR

LOADING &

M

AUDIO L.P.F

IC2 (1/2)

IC2 (2/2)

Q1 DRIVER

4ch BTL

D1

3.3V

SW

AVR

LOE/LIM SW 64

39

S.GND

S7.5V

MOTOR

LO/EJ

D4.7V

D.GND

RST

L1

BU5V 4.7

5V

C15

+3.3V

C20

R23

100K

BU5V

GND

R18

28

27

26

4.7K

C19

0.1

C26

0.1

16.000MHz

R26

100K C22

1

X2

BU5V

D4.7V

+

2.2

C23

22u6.3

C27 C28

1000P CN

STB

GND

VIN

2

1

R25

1K

3

4

BU5V

+3.3V VOUT

5

BU5V

223 S7.5V

1

2

4

5

6

7

8

24

22

30

FOK

WAIT

EFLG

100

87

31

27

26

29

28

25

24

23

CP1

VDD

VSS

REGC

XT2

XT1

RESET

33

32

31

34

X1

X2

36

35

38

37

W1 18

21

20

19

20

CP2

100

MUTE R

MUTE L

VPP

17

16

15

14

13

4.7K

12EJE SW

LOS SW

8EJE SW

AD3

AD2

AD1

AD0

ASTB

READ

WRITE

+3.3V +

3

0.1

+3.3V

C33

89

90

65

91

A1

Y1

1

2

C31

AD8AD8

AD3

AD2

AD1

AD0

ASTB

DSTB,/RD

R/W

WRL

42

41

40

45

44

43

48

47

46

50

49

51

AD4 AD4

AD7

AD5

AD6 52

53

BVDD

BVSS

54

55

56

AD7

AD5

AD6

+3.3V

100K

59

AD9

AD10

57

58

AD11

AD12 60

61

AD9

AD10

AD12

AD11

62

AD13

AD14

AD15 63

CP24

0.1

BU5V

14

13

VCC

A6

R24

D.OUT

BU5V

LOE/LIM

SW

8EJE SW

MSTOP

MRST

MUTE L

MUTE R

A.GND

DATA

LOS SW

12EJE

SW

3113

11

BU5V9

10

12 12

87

S7.5V

12

C16

0.1

Rch 16

14

15 19

20

17

0.1

C88

Lch

A8V 18

19

20 A8V

94

CLK 21

22 96 A8V

BU5V

12

11

10

9

PON

R14 PON

PON

8

7

6

5

4

BU5V

EVSS

EVDD

SCK0

3

2

E2P SDA

E2P SCL

1

CP4

4.7K

99

100

96

97

98

100

CP6

ZMUTE L

D-MUTE

SAD0

MSTOP

FOGUP

ZMUTE R

INTSV

91

SOD

94

95

91

92

93 1K

R27

89

90

87

88

90

89

SW5V

A8V

23

24 SLD+

12

13

S7.5V

SPD-

R4

2.2K

C3

2.2

C2

1

96

BU5V

CLK

SW5V

S7.5V

DATA

94

R28

10K

S7V

NIS

GND

CTL

C4

1

2

3

0.01 OUT

5

4

IN

10u10

C1

A8V

C12

2200P

A8V

2200P

C8

R6

330 4

1

C9

0.1

SLD-

18

19

SLD+

R10

330 8

7

A8V

680P

2.7K

68P

18K

30K 11K

C5

R1

A3.3V

C6

680P

3

2R3

C11

C7

0.1

R7

7.5K

R5

R2

C10

0.1

R8

7.5K

S7.5V

18K

R13

C13

68P

5

6R12

30K

R11

11K R9

4.7

C21

A3.3V

FO+

SPD+

SPD-

VCC1

GND

MUTE

GND

SPIN

SPIN-

SPIN+

FDIN

FDIN-

BIAS

R38 100K

100K

SW5V

AVDD

DBBWRDY0

DBBRRDY0

R42 100K

REQ

RESET

HSCB

CS 65

66

67 R43 100K

68

69

70

R41 10K

R40 10K 0.1

78

DASC

E2P WR

PIC SEL

ASEL

WMA

85

86

83

84

E2P

WR

R30

1K

R33

80

81

82

79

WTS

AVSS

AVREF

71

72

73

MDL

SEL

HOT

74

75

C32

R77

1K

76

77

R78

BU5V

R39

100K

10K

R32

R35

1K

S7.5V

10K

BU5V

SW5V

9

18K13K

105 R36

16K

108 R31

4.7K

C29

330P

R29

2

1

4

3

C30

1500P

R34

5

8

7

6

S7.5V

15

14

13

12 12

11

10

FO-

14

13

15

SW5V

100

22

26

SLIN+

TDIN

TDIN-

VCC 29

30

27

28

LO/EJ

SLIN

SLIN-

24

25

23

330P

R17

13K

C17

S7.5V

R21

4.3K

R22

R76

13K

R20

12K

24

16

TR-

SLD+

SLD-

VCC2

GND

CNT

19

20

21

17

18

TR+

19

18

17

S7.5V

22

16

4700P

12K

R16

R19

12K

106

107

C18

A3.3V

C42

4.7

A

3

0.1

C35

AD

3

C34

C

22

0.1

10K

R75

10K

R51

R49 100K

RE

A

WR

I

AU3.3V

AD

0

AS

T

AD

1

AD

2

A3.3V

AD

5

AD

4

AD

8

AD

6

AD

7

AD1

2

AD1

0

AD1

AD

9

1K

R50

4.7

IOP2

R46

IOP1

A3.3V

R57

4.7K

Q2

100K

R47

VCC

(X25-)

CN2

to

A

2/3

X32-5410-00 (1/2)

KDC-M4524/G/Y/GY

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

19

ADACABAAZ

1

2

3

4

5

6

7

3.3V

0V

3.3V

1.5V

3.3V

0V

3.3V

0V

3.3V

0V

3.3V

0V

3.3V

0V

3.3V

0V

3.3V

0V

3.3V

0V

3.3V

0V

3.3V

0V

3.3V

0V

1.65V

3.3V

0V

3.3V

0V

3.3V

0V

3.3V

0V

3.3V

0V

3.3V

0V

5.0V

0V

C

8IC13

X32-5410-00 (DXM-6410)

(X93- )

IC11

OPTICAL

PICKUP

DPU1

V

EL

F

T

V

-5V)

UPD63760GJIC11

IC13 IS41LV16257:

:

IC4

IC8

IC7

IC6

IC2

IC1

Q4

BA5824FP:

TC74HCT7007AF: 703033BYGC-J02

L88MS33T

:

D1

NJM4580V

TAR5S33

:

Q1

Q2,3

DIGITAL LINE

SIGNAL LINE

GND LINE

B LINE

MCH6101:

DAP202U:

DTA143XUA

DTC124EUA

:

CD SIGNAL PROCESSOR/

MP3 DECODER

RF AMP/

(AUTO POWER

CONTROL)

Q4

APC

CN2

DTA143EUA:Q5

DRAM

BUFFER)

(DATA

Y3 A4

+3.3V

89

90

65

64

66

91

A2

Y2

A3

A1

Y1

3

1

2

4

6

5

B

U5V

11

10

14

13

12

VCC

A6

Y6

9

A5

Y5 27

26

35

A494

21

22

GND

7

+3.3V

GND1

70

72

95

96

97

98

23

24

25

28

26

27

83

84

81

69

82 32

29

30

31

33

34

UCAS

A7

A6

A5

OE

A8

NC30

I/O8

LCAS

I/O10

I/O11

I/O9

85

86

87

88

38

36

37

40

39

I/O12

I/O13

GND2

GND3

I/O14

I/O15

C83

0.1

6

93A3

Y4 8

VCC3 20

19

D3.3V

28

C84

0.1

+

10u10

C85

WE

A0

A1

A2

RAS

NC15

16

18

17

13

15

14

NC12

NC11

I/O7

I/O5

I/O4

I/O6 9

10

12

11

7

8

71

90

91

92

68

80

+3.3V

78

77

79

VCC2

I/O3

I/O2

VCC1

I/O1

I/O0

3

4

5

1

2

76

75

74

73

31 78

PLCK

+3.3V

C48

0.1

C53

0.1

+3.3V

C61

0.1

XTAL2

XTAL1

XVDD1

XGND2

XGND1

XTAL2

XTAL1

C42

4.7

47K

16.934MHz

X1

40

37

39

38

R53

43

42

41

A3.3V

0.1

C35 34

36

35

+

C41

33

32

0.1

DAVDD2

LOUT

DAGND2

L+

L-

REGC

LRCKOUT

SCKOUT

XVDD2

WFCK/MIRR

RFCK/HOLD

TEST4

TESTEN

C16M

RFOK

TESTX

LRCKIN

SCKIN

DOUT

DGND

CP5

100K

DIN

46

45

44

51

50

49

48

47

CP7

100K

CP13

100K

54

53

52

60

59

58

57

56

55

VDD1

+B

+3.3V

GND1

C2D3

C2D2

CAS0

C1D2

LOCK

66

65

64

68

100

CP22

71

69

70

66

65

64

63

62

61

C1D1

C2D1

71

70

69

68

67

RAS

WE

CAS1

72 72

R72

100 OE

74

73

RDB0

RDB1 73

74

CP21

75

76

RDB2

RDB3 100

77

RDB4

RDB5

75

76

77

78

+3.3V

6800P

C74

3300P

C75

2200P

C67

6P

C68

2P

C63

C57

R63 3K

R62 3K

114

AD3AD3

IFMODE

C34

C36

22u6.3 30

29

0.1

28

27

10K

R75

A3.3V

25

26

23

24

DAGND1

R-

R+

ROUT

DAVDD1

XTALEN2

XTALEN1

DVDD

18

10K

R49 100K 20

22

21

READ

WRITE 19

.

3V

AD0

ASTB

16

17

AD1

AD2 13

15

14

INTQ

WAIT

READ

WRITE

AD0

ASTB

CS

AD1

AD2

135

2

7

10

AD5

AD4 12

11

AD8

AD6

AD7 9

8

AD12

AD10

AD11

AD9

5

6

4

3

AD5

AD4

AB8

AD6

AD7

AB11

AB9

AB10

RST

AB12

R52

1

C45

1K

R50

1000P

4.7

IOP2

R46

+

C47

10u10

TEO

TE2

TEC

AGND3

LDREGO

PD

PN

AVDD3

RGND

143

144

LD

140

141

142

100K

138

139

136

137

125

TE-

AVDD2

REFOUT

REFC

FEO

133

134

FE-

131

132

R59

160K

128

E129

130

B

D

F

126

127

RF2-

RF-

AGCO

RFI

RF0

AGCI

EQ2

EQ1

AGND2

6.8K

119

122

A

C

123

124

120

121

R67

118

117

116

115

0.1

C65

86RDB13

RDB10 82RDB9

79

80

RDB6

RDB7

81

RDB8

CP20 100

79

80

81

82

83

84

RDB11

85

RDB12

CP19 100

83

84

85

RDB14

RDB15

90

88

86

87

89

GND2

RA0

CP18 100

87

88

90

RA3

91

92

RA1

RA2

93

94

RA4

100

CP17

93

92

91

94

R71

100

+3.3V

AGND

FD

99

RA7

95

96

RA5

RA6

97

98

RA8

RA9 CP16

100

97

95

96

98

TEST1

100

101

VDD2

TEST0

102

103

104

TEST2

TEST3

+3.3V

AGND1

C3T

ASY

EFM

ATEST

AVDD1

113

112

111

33K

10K

R70

110

109

107

105

106

TD

SD

108

MD

4.7K

CP15

CP23

C82 1500P

10K

C81 1500P

C77

0.1

+3.3V L5

+3.3V

C55

47PIOP1

C50

+3.3V

R55

10K 0.1

TE

C52

1500P

R57

4.7K

C59

FE

C56

82P

0.1

+3.3V

VREF

F

AGCO

RF

+3.3V

E

C70

R69

0.01

C76 0.1

+3.3V

4.7

C78

C79 1500P

C80 1500P

106

108

107

+3.3V 16 TRK+14

A3.3V

C87

4.7

105

14

17 FCS-

TRK-

16

15

F11

FCS+

GND

13

12

A

B10

9

R73

240 PD6

C

E8

7

VR

LD

5

4

VCC1 VC

GND3

2

1

00K

R47

S4

NO

YES

X32-5410-00

X32-5410-01

CAUTION : For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts

list).

Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measurements shall be

carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer.

•DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual

instruments or/and units. X32-5410-00 (2/2)

KDC-M4524/G/Y/GY

w

.

x

i

a

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y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

20

EXPLODEDVIEW (MECHANISM)

Parts with the exploded numbers larger than 700 are not supplied.

AB

1

2

3

858

F

31

DM1

30

26 28

25 14 16

17

18

23

45

38

801

44

24

52

29 19

27

F

DM2

834 850

849

807

806

37 43

43

435637

3753

41

51

55

36 33

33

40 15

39

42

11

13

12

10

22

32

35

43

237

Bx2

Ax2

Jx2

DPU1

H

F

G

DFPC1

E

A

B

C

D

E

F

G

H

J

: N09-4460-05

: N09-4472-05

: N09-6004-05

: N09-6006-05

: N09-6007-05

: N09-6051-05

: N19-2163-04

: N39-2020-46

: N09-6108-05

φ

2x8

M1.7x8.5

M1.7x2.5

φ

2x3.5

M2x2

φ

2x6(BLK)

1.6 WASHER

M2x2

M2x3.5

(X32-)

8

809

5

KDC-M4524/G/Y/GY

w

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1

6

3

.

c

o

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Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

Kenwood KDC-M4524 User manual

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