Kenwood KDC-6024Y Service Manual

KDC-X469

OFF

NF

-

+

DAB

F.SEL

M.RDM

REPSCAN

RDM

AUD

C.S.

MENU

NAME.S

DISP

AUTO

AME

Front glass

(B10-4307-01 : KDC-X469)

Panel assy

(A64-2827-02 : KDC-X469)

KDC-6024

OFF

NF

-

+

DAB

F.SEL

M.RDM

REPSCAN

RDM

AUD

PTY

MENU

NAME.S

DISP

TI

GSM

Front glass

(B10-4313-01 : KDC-6024/6024Y)

Panel assy

(A64-2837-02 : KDC-6024/6024Y )

Escutcheon

(B07-3022-02)

(B07-3075-02)

Plastic cabinet assy

(A02-1486-13)

Mounting hardware assy

(J21-9716-03)

DC cord

(E30-4944-05)

(E30-4958-05)

Antenna adaptor

(T90-0523-05)

Screw set

(N99-1730-15)

Lever

(D10-4589-04)

Depends on model. Refer to the parts list.

DC cord

(E30-4939-05)

Remote controller assy(RC-505)

(A70-2040-05)

Screw set

(N99-1719-15)

Not supplied

•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 (24PIN) : W05-0934-00

©

2003-1 PRINTED IN JAPAN

B53-0026-00

(

N

)

3114

CD RECEIVER

KDC-6024/Y

KDC-X469

SERVICE MANUAL

KDC-6024/Y/X469

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

PRE MUTE

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

SERVOSERVO+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 DATA

R CLK

FM

AM

MP IN

LEVEL

CD

QUAL

AFS

CH

SW5V

SW5V

BU5V

PANEL DET

EJECT

DSI

L CLK

L DATAS

L CE

L DATAL

VOL A

VOL B

REMO

V DATA

V CLK

O-CE

O-DATA

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

BU5V

BU5V

TUNER

CD

EX.CH

SWITCH UNIT (X16- )

DAUGHTER UNIT

(X89- )

KDC-6024/Y/X469

3

COMPONENTS DESCRIPTION

● CD PLAYER UNIT (X32-5200-00)

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 MN6627774KH2

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.

IC4 BA5824FP 4CH BTL driver Focusing coil, tracking coil, spindle motor and sled motor driver, disc

loading and eject operation.

IC6 NJM4580M1 Low pass filter 2nd low pass filter for audio signals

Q1 MCH6101 APC LD power control

Q2 DTC124EUA D.5V SW When P ON signal gose"L", Q2 is ON

Q3 DTA143XUA Q4 SW When P ON signal gose"L" (SW+5V AVR is ON), Q3 is ON

Q4 2SA1362(Y) A.8V SW When P ON signal gose"L" (Q3 is ON), Q4 is ON

D1 DAN202U Protection diode Laser diode protection

D2 MA8051-L Zener diode DAC AVR/LPF reference voltage (A.5V)

D3 DA204U Current driver Current driver

● ELECTRIC UNIT (X25-9712-71/9800-10/9802-71)

Ref.No.

Component Name Application/Functions Operation/Condition/Compatibility

IC1 UPD703030GC013 System microcomputer Control for TUNER unit, CD mechanism, volume & tone, LCD driver and

external CD changer unit

IC2 TDA7411 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 PST3436UL 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.

Q31 UN5213 Dimmer control When base voltage is "H" dimmer is ON.

Q32 DTA123JK EXT. AMP control Control to EXE.AMP for pulse width signal.

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-6024/Y/X469

4

COMPONENTS DESCRIPTION

Ref.No.

Component Name Application/Functions Operation/Condition/Compatibility

Q101 UN5216 Buffer amp COMPOSITE SIGNAL BUFFER.

Q151 UN5114 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.

Q152 2SA1576A Panel 5V SW When panel assy attached to the unit, Q152 base goes "L" and supply to

panel 5V AVR to panel assy .

Q153 UN5213 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 UN5216 Buffer amp Noise buffer amp.

Q350 UN5112 Pre & NF mute SW When base voltage to "L", drive to pre & NF mute SW(Q351,355,357).

Q351 UN5216 Pre mute SW When base voltage to "H", muting to the pre Lch or NF Lch line.

Q352 UN5216 Pre mute SW When base voltage to "H", muting to the pre Rch or NF Rch line.

Q354 UN5112 Pre & NF mute SW When base voltage to "L", drive to pre & NF mute SW(Q32,356,358).

Q355 UN5216 Pre mute SW When base voltage to "H", muting to the front Lch line.

Q356 UN5216 Pre mute SW When base voltage to "H", muting to the front Rch line.

Q357 UN5216 Pre mute SW When base voltage to "H", muting to the rear Lch line.

Q358 UN5216 Pre mute SW When base voltage to "H", muting to the rear Rch line.

● SWITCH UNIT (X16-2020-10/12/2222-70)

Ref.No.

Component Name Application/Functions Operation/Condition/Compatibility

IC1 LC75808W LCD driver Drive for LCD unit.

IC2 PNA4S22M Remote control IC Receiving for the remote control unit.

Q1 2SC4081 VLCD AVR When base voltage level goes 7.9V Q1 is ON.

Q2 DTA114EUA Remo. ON SW When base voltage level goes "L" the power supply IC2 is turned "ON".

Q3 2SC4081 key illumination SW Lights up for green key illumination when base voltage level goes "H".

Q4 2SC4081 key illumination SW Lights up for red key illumination when base voltage level goes "H".

Q5 2SC4081 Dimmer control SW Lights up for LCD back light when base voltage level goes "H".

KDC-6024/Y/X469

5

MICROCOMPUTER'S TERMINAL DESCRIPTION

Pin No. Name I/O Description/Processing Operation

1 PLL CLK O CLK output terminal to Front End

2 N.C - Open

3 PANEL DET I Panel assy detect terminal ( Panel assy come off : L)

4 IC2 SDA I/O Control Data input / output terminal for electric volume, CD mechanism

5 IC2 SCL O Clock DATA output terminal for electric volume, CD mechanism

6 VDD - Power supply input terminal (BU 5V)

7 VSS - GND

8 FLIP-DET I Panel assy open detect terminal (panel close : L )

9 BEEP O Beep audio signal output terminal

10 REMO I Remote control signal input terminal

11 R QUAL I RDS decoder QUAL signal input terminal

12 R DATA I RDS decoder Data signal input terminal

13 L CE O CE output for LCD driver IC

14 VILL DATA O Variable illumination DATA out put terminal for D/A converter

15 VILL CLK O Valuable illumination CLK out put terminal for D/A converter

16 DSI O Disc guide illumination control terminal

17 DIM CON O Dimmer control terminal

18 TEST - Test terminal

19 ILL CON O Illumination control terminal

20 VOL A I Volume key input terminal

21 VOL B I Volume key input terminal

22 MOSW O CD mechanism motor IC control output terminal (Loading,eject ,brake :L )

23 LO/EJ O CD mechanism loading / eject control terminal

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

25 M RST O Reset signal output to CD mechanism (active L)

26 MUTE O Muting signal output terminal

27 LOE/LIM SW I Down SW detection from CD mechanism

28 M-MUTE L I Request for muting signal from CD mechanism (Mute request : L )

29 M-MUTE R I Request for muting signal from CD mechanism (Mute request : L )

30 PANEL 5V O Control for Panel5V AVR

31 RESET I Reset terminal (Active : L )

32 XT1 I Sub clock input terminal (32.768KHz)

33 XT2 I Sub clock input terminal (32.768KHz)

34 REGC - Regulator output terminal

35 X2 I Main clock input terminal (20MHz)

36 X1 I Main clock input terminal (20MHz)

37 VSS - GND

38 VDD - Power supply input terminal (BU 5V)

39 NC - Open

40 IC2 TYPE1 I Electric volume condition setting terminal

41 IC2 TYPE0 I Electric volume condition setting terminal

42 TYPE2 I Destination setting terminal

43 TYPE1 I Destination setting terminal

44 TYPE0 I Destination setting terminal

45 CD MECHA+B O AVR control for CD mechanism ( For MP3 AVR ON :L )

46 SW 5V O Control terminal for SW5V AVR (ON : L , OFF : Hi-Z)

47 PS2-0 O Power supply IC control terminal

48 PS2-1 O Power supply IC control terminal

49 PS1-0 O Power supply IC control terminal

50 PS1-1 O Power supply IC control terminal

● IC1: ELECTORIC UNIT (X25-9712-71/9800-10/9802-71)

KDC-6024/Y/X469

6

MICROCOMPUTER'S TERMINAL DESCRIPTION

Pin No. Name I/O Description/Processing Operation

51 PS1-2 O Power supply IC control terminal

52 B.U-DET I BU detect input terminal ( BU detect : L )

53 ACC-DET I ACC detection input terminal (ACC detect : L)

54 DIMMER I Illumination detect terminal from CAR (illumination ON : L )

55 BVDD - Power supply input terminal (BU 5V)

56 BVSS - Open

57 EXT AMP CON O EXT. amp control terminal (Active H)

58 SVR O SVR control for Audio power IC

59 P-MUTE O Muting control for Audio power IC

60 P-STBY O STBY control for Audio power IC (Power IC ON : H )

61 NC - Open

62 PRE MUTE R O Rch pre mute output terminal (Active H)

63 PRE MUTE L O Lch pre mute output terminal (Active H)

64 TUNER O Noise detection (FM seek,AM search : L )

65 O-DATA O DATA signal output for EXT. display (Handling for OPEL display)

66 O-CLK O CLK signal output for EXT. display (Handling for OPEL display)

67 O-CE O CE signal output for EXT. display (Handling for OPEL display)

68 LX-RST O Reset signal output to EXT. unit

69 LX-CON O Control signal output to EXT. unit (ON : H , OFF : L)

70 AVCONT O Control for A/D reference voltage

71 AVDD - Power supply input terminal (BU 5V)

72 AVSS - Open

73 AVREF I A/Dereference voltage input terminal

74 PHONE I Mobil phone detection input terminal

75~81 NC - GND

82 S-METER I S meter detection input terminal

83 NOISE I FM noise detection input terminal

84 IFC-OUT I IFC OUT input terminal

85 LX-MUTE I Request signal input terminal from EXT.unit (Mute ON : L )

86 LX-REQ-M O Request signal output terminal to EXT.unit (Request : L)

87 R-CLK I RDS decoder CLK input terminal

88 LX-REQ-S I Request signal input terminal from EXT.unit (Request : L)

89 KEY-REQ I Request for communicate from LCD driver IC (KEY input : L )

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

91 12EJE SW I 12cm CD disc eject SW detection input terminal (12cm disc : L )

92 EJECT I Eject detection terminal (KEY input : L)

93 8EJE SW I 8cm CD disc eject SW detection input terminal (Not used)

94 LX-DATA-S I DATA signal input from EXT. unit

95 LX-DATA-M O DATA signal output to EXT. unit

96 LX-CLK I/O CLK signal input/output to EXT. unit

97 L DATAL I DATA input terminal from LCD deriver IC

98 L DATAS O DATA output terminal to LCD driver IC

99 L CLK O CLK output terminal to LCD driver IC

100 PLL DATA I/O Data input / out put terminal to Front-end

KDC-6024/Y/X469

7

TEST MODE

1. How to enter the test mode

• While holding the preset 1 key and 3 keys, reset the unit.

2. How to exit from the test mode

• Reset the unit, ACC OFF, power OFF, and come off the

front panel assy for the unit.

3. Initial status in the test mode

• Sources : All OFF.

• Display : All segments were lit.

• Volume : -10 dB (displayed as 30)

• Loudness : OFF

•CRSC : OFF regardless of the presence of

switching function.

• SYSTEM Q : Flat.

• Aux : ON

• Display color : white (variable color display model only)

• Beep sound : ON

4. Special display in Tuner mode

When any of the following messages is displayed in Tuner

mode, the Front-end (F/E) may be bad condition.

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

values) because the F/E was shipped without passing

through the adjustment process, etc.

• "TNCON NG": Communication with the F/E to micro-

processor is not possible.

5. Forced switching of K3I

Each press of the Preset 6 key in Tuner 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. 22 → 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 tracks of an MP3 disc is nine or

less, unit playback from a track 1.

• When the media to CD-DA, unit playback from track No.28

by key operation of preset 1 key.

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.

• Continuous holding of a remote control key is inhibited.

• Bass, Middle and Treble are adjusted in 3 steps of -8 / 0 /

+8 with the Track Up/down keys (default is 0).

• Balance is adjusted in 3 steps of Left L15 / 0 / R15 Max

with the Track Up/down keys (default is 0).

• Fader is adjusted in 3 steps of Rear15 / 0 / F15 Max with

the Track Up/down keys (default is 0).

• HPF is adjusted in 2 steps of Through/170Hz (or 200Hz)

with the Track Up/down keys (default is through).

• LPF is adjusted in 2 steps of Through/120Hz with the Track

Up/down keys (default is through).

• Bass f, Bass Q, Bass EXT, Middle f, Middle Q and Treble

f are not dealt with by the audio adjustment.

8. Menu-related specifications

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

mode.

• Pressing the DNPP key on the remote initiates the Menu

mode.

• Continuous holding of a remote control key is inhibited.

• Contrast is adjusted press of the Track up/down key in 3

steps of 0 / 5 / 10 (default is 5).

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 activated at

this time.)

KDC-6024/Y/X469

8

TEST MODE

10. Special display when the display is all on

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

plays the following information.

11. Change the condition of TUNER channel

space selection (K/M type only)

While holding the preset 1 key and 5 keys, reset the unit.

Security-related information

1. Forced Power ON mode (All models)

Even when the security is approved, resetting the unit while

holding the Q and Preset 4 keys makes it possible to turn

the power ON for 30 minutes.

After 30 minutes have elapsed, it is not possible to return to

the previous condition unless the unit is reset again.

2. Method of registration of the security code

after EEPROM (Tuner unit assy) replacement

(Code security model)

1. Enter the test mode. (See 1. How to enter the test mode)

2. Press the MENU key to enter the MENU mode.

3. Press and hold down the Track up/down key for 1 second

until “Security” is displayed.

4. Enter the code using the FM/AM/TARCK up/down keys.

• FM key: number is up

• AM key: number is dawn

• Track up key: move the cursor for right side

• Track down key: move the cursor for left side

5. Hold down the Track up key for at least 3 seconds and

the message, "RE-ENTER" appears, so once again enter

the code according to Step 3 above.

6. Press and hold the Track up key for 3 seconds until

"APPROVED" is displayed.

7.

Exit from the test mode. (See 2. How to exit from the test mode)

(Note) All Clear is not applicable to the security code of

this model.

3. Simplified method of clearing the security

code (K, E Type only)

1. While the code entry is requested, press and hold the

TRACK UP key for 3 seconds while holding the DISP key

pressed. (This should turn "----" off.)

2. Enter “KCAR “from the remote.

• Press the 5 key on the remote twice, and then press the

Track Up key. (This enters "K".)

• Press the 2 key on the remote 3 times, and then press

the Track Up key. (This enters "C".)

• Press the 2 key on the remote once, and then press the

Track Up key. (This enters "A".)

• Press the 7 key on the remote twice, and then press the

Track Up key. (This enters "R".)

3. The security code is cleared and the unit enters the ALL

OFF mode.

4. If you commit a mistake in the code entry, the unit enters

the code request mode again.

Version display (8 digits, Month/Day/Hour/Minute)

(Display) SYS xxxxxxxx

Serial No. display (8 digits)

(Display) S. No. xxxxxxxx

Short press: View power ON time.

(The All OFF period is not counted.)

Long press/hold: Clear power ON time.

(Display) PonTim xxxxx Max. 60,000 (hours)

Short press: Display CD operation time.

Long press/hold: Clear CD operation time

(Display) CDTime xxxxx Max. 60,000 (hours)

Short press: Display CD ejection count.

Long press/hold: Clear CD ejection count.

(Display) EjeTim xxxxx Max. 60,000 (times)

Short press: Display Panel open/close count.

Long press/hold: Clear Panel open/close count.

(Display) PnCnt xxxxx Max. 60,000 (times)

ROM correction version information

(Display) ROM Rxxxx

If not mounting ROM correction chip set display

shows ROM R_

PRESET 1

PRESET 2

PRESET 3

PRESET 4

PRESET 5

PRESET 6

FM

9

A B C D E

1

2

3

4

5

6

7

PC BOARD

(COMPONENT SIDE VIEW) (FOIL SIDE VIEW)

Ref. No address

IC1 4C

IC2 6B

Q1 3C

Q2 5C

Q3 3C

Q4 3C

Q5 5C

X16-2020-10

/12/2222-70

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

KDC-6024/Y/X469

1

KS5

AM

FM

RST

AUD

1 2 3 4 5 6 DISP AUTO

SRC

KS3

KI4

KI2

KI1

KI3

KI5

KS3

91024

45

31

69 25

D10

D11

S24

SWITCH UNIT

X16-2020-10/12/2222-70 (J74-1448-22)

D7

D13

D9

D6

D5

D4

D1

D2

D3

IC2

D8

D14

D12

ED1

D16

D15

D18

D17

SWITCH UNIT

X16-2020-10/12/2222-70 (J74-1448-22)

R23

ESD-GND

KS4

ILL +B

FLIP DET

VOL B

VOL A

RESET

KI3

ILL GND

DIMMER

REMO

KI4

KI2

KS5

PANEL 5V

DO

CE

CL

DI

D-GND

KI1

KI5

KS3

R24

R9

R16 R18

BE

BE

BE

R15

R2

C2

C3

C4

C5

C6

R29

C11

C10

1

2

16

15

CP1

C9

R25

R22

C8

R6

R19

R17

R11

CP3

R1

C1

CP5

CP4

1 100

76

75

51

R28

W1

R27

R21

R20

R26

C13

C12

C7

R13

50

26

25

R10

R3

R4

R5

J1

Q1

EB

Q4

EB

Q3

D19

IC1

Q2

Q5

R2

C1

1

15

16

2

R1

R3

R4

R11

R6

R13

R7

R5

R12

R9

R10

R8

D1

J1

DAUGHTER UNIT

X89-2570-10/2602-70 (J74-1450-02)

S1

17

1

2

18

CN1

DAUGHTER UNIT

X89-2570-10/2602-70 (J74-1450-02)

F G H I J

1

2

3

4

5

6

7

R358

9106751

1

9

8

16

1

25

224

13 11 12 8 4 3 2

R363

1

1

24

1

117

2

2

24 2

23 1

18

1

3

3

4

6

R361R359

R360

R377

R376

C360

R373

W104

W103

W106

C210

C213

R204

R211

R212

W105

W101

C212

R402

R407

C7

R24

R25

R26

R27

SCL

SDA

R28

R417R416

R412R411

R421R420

R44R43

R409

C405

R63

R42

5

1

R41

C45

R422

R56

R59

R60

R151

R163

R210

R208

R207

R209

R105

R103

R152

R102

R154

R153

R104

R113

C502

R213

C226

C227

R215

C223C225

R214R216

C222C224

R112

R114

C116

C118

R155

R156

R169

R158

R157

R55

R58

R54

R166

R413

R419

R415

R418

C32

C4

R253

R254

R260

R261

TH1

R37

R31

R21

R262

R259

C257

R257

R32

R33

C31

R1

R2

R35

R34

C304

R372

R36

C403

R408

R370

R371

R315

R403

R404

R406

R401

R405

R203

R362

R364

R357

R355

R356

R352

R351

EB

BE

D41

Q351

EB

Q31

Q22

Q352

BE

Q350

BE

Q356

D203

D161

D162

D154

D153 D158

BE

Q41

BE

Q201

BE

Q354

D205 D204

EB

D352

D351

Q357

EB

Q358

BE

Q355

L3

W1

W2

W4

W7

W8

W11

W26

W28

1

12

W10

R8

R9

R22

R23

L1

W29

IC3

W24

W21

W23

W27

W18

W17

W13

W12

W14

W9

BU5V

RST

W16

W19

W22

W25

W15

W20

W30

W33

W31

W34

W32

W5

C256

C33

C258

C22

C20

C21

E

B

E

E

C

C

C1

C23

C29

C24

C26

C409

C28

C27

C41C42

C44

C43

C25

C301

C352

C351

C354

C353

C359 C358

C211

C216

C117 C115

X3

C221

C220

C208

C207

C209

C202 C201

C217

C219

C218

C355

C255

C254

C302

C303

C251 C252 C253

W3

W6

D1

J1

J3

ELECTRIC UNIT

X25-9712-71/9800-10/9802-71

(J74-1447-12)

J2

J4

CN3

CN4

A1

CN5

P1

S1

CN1

CN2

IC4

85

41

IC10

148

71

IC6

251

75

76

100

50

26

51

IC1

44

18

169

34

22

23

33

11

1

12

IC2

IC7

IC9

D156D155D160D159D152

D157D151

X2

X1

D308

D307

D301

D303

D304

D311

D310

CN6

D270

D269

D271

D32

D4

D31

L9

D21

Q21

D2

D3

D401

D163 D164

D165

D254

D252

D25

D253

D23

D22

D251D255

D24

D256

D257

D258

D309

D357

D356

D358

L8

L7

L6

L10

L11

W35/L2

L12

PC BOARD (COMPONENT SIDE VIEW)

10

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

KDC-6024/Y/X469

Ref. No address Ref. No address Ref. No address Ref. No address

IC1

IC2

IC3

IC4

IC6

3I

4I

2H

4F

3H

IC7

Q21

Q22

Q31

Q201

5J

1G

1G

3H

4H

Q350

Q351

Q352

Q354

Q355

Q356

Q357

Q358

5H

5G

5G

5H

5G

5H

5H

5H

X25-9712-71/9800-10/9802-71