Service Manual for KENWOOD KDC-5024YV

KDC-3022

OFF

-

+

M.RDM

REP

SCAN

RDM

AUD

C.S.

MENU

NAME.S

DISP

AUTO

AME

KDC-5023

OFF

-

+

DAB

M.RDM

REP

SCAN

RDM

AUD

PTY

MENU

NAME.S

DISP

AUTO

AME

KDC-5024

OFF

-

+

DAB

M.RDM

REP

SCAN

RDM

AUD

PTY

MENU

NAME.S

DISP

TI

KDC-507

OFF

-

+

DAB

M.RDM

REP

SCAN

RDM

AUD

PTY

MENU

NAME.S

DISP

TI

Escutcheon

(B07-3022-02)

(B07-3083-02)

(B07-3089-02)

Plastic cabinet assy

(A02-1486-13)

Mounting hardware assy

(J21-9716-03)

DC cord

(E30-4790-05)

(E30-6134-05)

Antenna adaptor

(T90-0523-05)

Screw set

(N99-1730-15)

Lever

(D10-4589-04)

DC cord

(E30-4784-05)

(E30-6131-05)

Remote controller assy(RC-505)

(A70-2040-05)

Screw set

(N99-1719-05)

Not supplied

Panel assy

(A64-2824-02 : KDC-3022)

(A64-2825-02 : KDC-322)

Front grass

(B10-4304-01 : KDC-3022)

(B10-4305-01 : KDC-322)

Panel assy

(A64-2838-02 : KDC-5024/Y)

(A64-2851-02 : KDC-5024V/YV)

Front grass

(B10-4314-01 : KDC-5024/Y)

(B10-4324-01 : KDC-5024V/YV)

Panel assy

(A64-2833-02 : KDC-5023R)

(A64-2834-02 : KDC-5023)

Front grass

(B10-4310-01 : KDC-5023R)

(B10-4311-01 : KDC-5023)

Panel assy

(A64-2839-02 : KDC-5094RY)

(A64-2842-02 : KDC-507)

Front grass

(B10-4315-01 : KDC-5094RY)

(B10-4317-01 : KDC-507)

Remote controller assy(RC-410)

(A70-2025-05)

Depends on model. Refer to the parts list.

·CD MECHANISM OPERATION DESCRIPTION is not in this sevice manual.

Please refer to service manual for X92-4450-0X (B51-7889-00).

CD mechanism extension cord (22PIN) : W05-0618-00

B53-0024-00 (N) 3379

CD RECEIVER

KDC-3022, 322

KDC-5023/R, 5024/V/Y/YV

KDC-507, 5094RY

SERVICE MANUAL

KDC-3022,322,5023/R,5024/V/Y/YV

,507,5094R

Y

2

BLOCK

DIAGRAM

BUFFER

Q101

RDS

DECODER

IC7

Q201

BUFFER

EEPROM

IC10

IC1

(V-ILL ONLY)

DA CONVERTER

IC3

IC2

REMOCON

RESET SW

ENCODER

ROTARY

S24

WITH

LCD DRIVER

KEY MATRIX

IC1

LCD

PANEL DET

S1

EJECT SW

S1

EJECT ILLUMI

DSI

u-COM

IC2

MPX

E-VOL

&

EXT AMP

DIMMER

ACC DET

TEL MUTE

B.U DET

PRE MUTE

DRIVER

MUTE

IC6

POWER

IC

IC4

THERMAL

PROTECT

PRE OUT

(REAR/NF)

EXT.AMP.CON

DIMMER

ACC

TEL MUTE

BACK UP

AUX IN

(REAR) 3PRE

PRE OUT

(FRONT)

PRE OUT

SP OUT

SURGE DET

SW REG

CD MECHA+B

SERVO

SERVO+B

SW 14V

Q21

IC9

OPEL DISP I/F

WIRED REMO/

SUPPLY

IC

IC3

POWER

ANT DET

P CON

RESET

IC8

SW 5V

Q4

PANEL 5V

Q152

SW5V

S-METER

AUDIO OUT

IFC OUT

PLL-DATA

PLL-CLK

SW5V

AM+B

A8V

SW3

SW2

SW1

MS CLK

MS DATA

M MUTE L

SW4

M MUTE R

LO/EJ

M STOP

MOSW

M RST

SERVO+B

A8V

BU5V

CD MECHA+B

DATA C

CH MUTE

CH RST

REQ H

REQ C

CH CLK

CH-CON

DATA H

BUCK UP

NOISE

QUAL

S-METER

R

DA

T

A

R

CLK

FM

AM

MP IN

LEVEL

CD

QUAL

AFS

CH

SW5V

BU5V

P

ANEL

DET

EJECT

DSI

L

CLK

L

D

ATA

S

L

C

E

L

D

ATA

L

VOL

A

VOL

B

REMO

V

DA

T

A

V

CLK

O-CE

O-DA

T

A

O-CLK

PRE MUTE

MUTE

P-MUTE

EXT.AMP.CON

DIMMER

PHONE

ACC DET

B.U DET

BEEP

PS1-0

PS1-1

PS1-2

PS2-0

PS2-2

RST

FREE

REAR

FRONT

BU5V

BUCK UP

A8V

AUX

SW5V

BACK UP

AM+B

FM+B

ILLUMI

A8V

BU5V

TUNER

CD

EX.CH

SWITCH UNIT (X16- )

DAUGHTER UNIT

(X89- )

KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY

3

q CD PLAYER UNIT (X32-5390-00/01)

COMPONENTS DESCRIPTION

Ref.No.

Component Name

Application/Functions

Operation/Condition/Compatibility

IC1

AN22002AA

RF amplifier adapted for CD-RW

Generation of RF signal based on the signals from the APC circuit and

pickup, and generation of servo error (focusing error and tracking error)

signals. Detection of dropout, anti-shock, track crossing and off-track

conditions, included gain control function during CD-RW.

IC2

MN6627771KP

CD signal processor built-in MI-COM

Focusing, tracking, sled and spindle servo processing. Automatic

adjustment (focusing, tracking, gain, offset and balance) operations.

Digital signal processing (DSP, PLL, sub-codes, CIRC error correction,

audio data Interpol ration) operations, and Microcomputer function.

IC3

BA5824FP

4CH BTL driver

Focusing coil, tracking coil, spindle motor and sled motor driver, disc

loading and eject operation.

IC4

NJM4580M1

Low pass filter

2nd low pass filter for audio signals

Q1

MCH6101

APC

LD power control

Q2

2SA1362(Y)

D.5V SW

When P ON signal gose"L", Q2 is ON

Q3

DTC124EUA

Q4 SW

When P ON signal gose"L"(SW+5V AVR is ON), Q3 is ON

Q4

DTA143XUA

A.8V SW

When P ON signal gose"L"(Q3 is ON), Q4 is ON

Q5

2SC4081

Current driver

Q6

2SA1576A

Current driver

D1

DAN202U

Protection diode

Laser diode protection

D2

MA8051-L

Zener diode

DAC AVR/LPF reference voltage (A.5V)

D3

DA204U

Current driver

q ELECTRIC UNIT (X25-9580-xx/2232-xx)

Ref.No.

Component Name

Application/Functions

Operation/Condition/Compatibility

IC1

M30302MC-5W3FP

System microcomputer

Control for TUNER unit, CD mechanism, volume & tone, LCD driver and

M30302MC-1N4FP

external CD changer unit

IC2

TDA7407D

Electronic volume & N.C.MPX

Control for source selector, volume & tone, and FM multiplex detector.

IC3

BA4911-V4

Power supply IC

Power supply for the units (Bu5V, Audio8V, FM+B, AM+B, P-con and

ANT-con)

IC4

TA8273H

Audio power amp IC

Amplifier for audio signal to derive for 4channel speakers (50W

maximum for each channel)

IC6

HD74HC27FP

Muting control IC

Control for timing for mute

IC7

SAA6581T

RDS decoder

Decode for RDS signal

IC8

PST3435UL

Reset IC

When detection voltage goes below 3.5V or less Reset IC output change

to "L" signal

Q1

2SC4081

Serge detection

When backup voltage become more than 24V output is "L" (momentary

power down) / When backup voltage become less than 24V output is "H"

Q2

2SC4081

Backup detection

When BU voltage supplied output is "L" / When BU voltage not supplied

or momentary power down is detected output is "H"

Q3

2SC4081

ACC detection

When ACC voltage supplied output is "L"

Q4

2SA1036K

SW 5V

When base voltage is "L" Q4 is ON

Q21

2SD2375

AVR

Servo regulator

Q22

UMC2N

SW

Servo SW

Q23

UMC2N

IC control

Power supply IC controller

Q101

KRC410

Buffer amp

COMPOSITE SIGNAL BUFFER

Q151

DTA114YUA

DSI driver

When base voltage level is "L" DSI LED is light up / When base voltage

level is "H" DSI LED turns off / When panel assy is pull off, cut off the

supply to panel 5V AVR.

SW1

OUT

1.5-3.0V

Audio ON

3.5-5.0V

Audio, P-con ON

7.0V-

Audio, P-con, P-ant ON

SW2

2.0-3.0V

Illumination, FM ON

4.0V-

Illumination, AM ON

KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY

4

COMPONENTS DESCRIPTION

Ref.No.

Component Name

Application/Functions

Operation/Condition/Compatibility

Q152

2SA1576A

Panel 5V SW

When panel assy attached to the unit, Q152 base gose "L" and supply to

panel 5V AVR to panel assy

Q153

KRC404

Illumination control

When Q153 base voltage to "H", illumination is light up

Q154

2SA1577

Illumination control

When Q153 base voltage to "H", illumination is light up

Q201

KRC410

Buffer amp

Noise buffer amp

Q351

KRC410

Pre mute SW

When base voltage to "H", muting to the rear Lch line

Q352

KRC410

Pre mute SW

When base voltage to "H", muting to the rear Rch line

Q354

KRA303

Pre mute SW

When base voltage to "L", drive to pre mute SW(Q351,352,355,356)

Q355

KRC410

Pre mute SW

When base voltage to "H", muting to the front Lch line

Q356

KRC410

Pre mute SW

When base voltage to "H", muting to the front Rch line

q SWITCH UNIT (X16-203x-xx/2032-xx)

Ref.No.

Component Name

Application/Functions

Operation/Condition/Compatibility

IC1

NJU6535

LCD driver

Drive for LCD unit

IC2

PNA4S22M

Remote control IC

Receiving for the remote control unit

Q1,Q4

DTA114EUA

Remo.on SW

When base voltage level goes "L" the power supply IC2 is turned "ON"

Q2

2SC4081

Key illumination SW

Lights up for green key illumination when base voltage level goes "H"

Q3

2SC4081

Key illumination SW

Lights up for red key illumination when base voltage level goes "H"

KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY

5

MICROCOMPUTER'S TERMINAL DESCRIPTION

Pin No.

Name

I/O

Description/Processing Operation

1-5

N.C

-

Open

6

REMO

I

Remote control signal input terminal

7

N.C

-

Open

8

BYTE

I

EXT. bus width select input terminal (GND)

9

CNVSS

-

Pull down to GND

10

XCIN

I

Sub clock input terminal (32.768KHz)

11

XCOUT

O

Sub clock output terminal (32.768KHz)

12

RESET

I

Reset terminal (Active : L )

13

XOUT

O

Main clock output terminal (10MHz)

14

VSS

-

GND

15

XIN

I

Main clock input terminal (10MHz)

16

VCC

-

Power supply input terminal (BU 5V)

17

NMI

-

Pull up to BU5V

18

EJECT

I

Eject detection terminal (Active L)

19

R-CLK

I

RDS decoder clock input terminal

20

LX-REQ S

I

EXT. unit request signal input terminal (Request L)

21

ILL CON

O

Illumination control terminal

22

PANEL 5V

O

Control for Panel5V AVR (Active L)

23

VOL A

I

Volume key input terminal

24

VOL B

I

Volume key input terminal

25

LOE/LIM SW

I

CD mechanism down sw detect input terminal (Disc clamp : H)

26

BEEP

O

Beep audio signal output terminal

27

M STOP

O

Request signal (Mechanism is STOP) output to CD mechanism (active L)

28

MOSW

O

CD mechanism motor control output terminal (Loading, eject ,brake : H)

29

PLL-CLK

O

System clock put to Front-end

30

PLL-DATA

I/0

Data input / out put to Front-end

31

LX-DATA M

O

EXT. unit Data output to EXT.unit

32

LX-DATA S

I

EXT. unit Data input from EXT.unit

33

LX-CLK

I/O

EXT.unit Clock input/output terminal

34

LX-REQ M

O

EXT unit Request output terminal (Request L)

35

L DATAS

O

DATA output terminal to LCD driver IC

36

L DATAL

I

DATA input terminal from LCD driver IC

37

L CLK

O

CLK output terminal to LCD driver IC

38

FLIP-DET

I

Panel assy open detect terminal (panel close : L )

39

L CE

O

CE output for LCD driver IC

40

LO/LE

I/O

CD mechanism loading / eject control terminal

41

EPM

I

Flash memory control terminal (pull down to GND, 100K)

42

M RST

O

Reset signal output to CD mechanism (active L)

43

M-MUTE R

I

Request to muting signal(R ch) from Mechanism ( Mute on : L )

44

12EJE SW

I

12cm CD disc eject SW detection input terminal (12cm disc : L )

45

M-MUTE L

I

Request to muting signal (L ch) from Mechanism ( Mute on : L )

46

LX-CON

O

EXT.unit select control terminal (Active H)

47

LO.S SW

I

Loading start SW detection input terminal (Loading start : L )

48

DSI

I

Disc guide illumination control terminal (Lighting on : L)

49

PANEL DET

I

Panel assy detect terminal (Panel assy come off : L)

50

N.C

-

Open

q IC1: ELECTRIC UNIT (X25-9580-xx/2232-xx)

KENWOOD KDC-5024YV Service Manual

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