Kenwood Kdc-3031a User manual

B53-0232-00 (N)1813

CD RECEIVER

KDC-3031A/AY/G/GY

KDC-309A/G

KDC-F331A/G

SERVICE MANUAL

* Depends on the model. Refer to the parts list.

PANEL ASSY

KDC-3031A/AY/G/GY (A64-3458-12) PANEL ASSY

KDC-309A/G (A64-3459-12)

ANTENNA ADAPTOR

(T90-0523-05)

SPARE TDF PANEL

MAIN UNIT NAME TDF PARTS No. TDF NAME

KDC-3031A/AY/G/GY

Y33-2140-62 TDF-3031

KDC-309A/G Y33-2140-64 TDF-309

KDC-F331A/G Y33-2140-63 TDF-WF431

PANEL ASSY

KDC-F331A/G (A64-3460-02)

MOUNTING HARDWARE ASSY

(J21-9716-03)

PLASTIC CABINET ASSY

(A02-2736-03)

DC CORD

(E30-6413-05)

LEVER

(D10-4589-04) x2

* ESCUTCHEON

(B07-xxxx-xx)

PTY

VOL

AUD

SET UP

SCAN RDM REP

VOL

AUD

SET UP

SCAN RDM REP

PTY

VOL

AUD

SET UP

SCAN RDM REP

PTY

This product uses Lead Free solder.

TEL 13942296513 QQ 376315150 892498299

KDC-3031A/3031AY/3031G/3031GY

KDC-309A/309G/F331A/F331G

BLOCK DIAGRAM

MECHA

CD or MD

CHANGER

E-VOL

IC10

AM AGC

Q501

FM AGC

L506

TUNER

IC11

E2PROM

SYSTEM u-COM

IC1

IC7

RDS

DECODER

RST IC

IC8

PRE MUTE

Q351,352

IC4

POWER IC

MUTE LOGIC

IC6

SURGE DET

BU DET

ACC DET

Q51

Q52

Q53

PAN5V

Q151

Q72,73

SERVO

VFD REG

IC15

POWER SUPPLY IC

IC3

ED1

VFD

with

VFD DRIVER

IC1 REMOTE

IC3

VOL

S11 KEY MATRIX

DSIQ155

.......

SERVO

A8V

BU5V

AUDIO OUT

AM+B

ANT

MPX OUT

MPX IN

800mV

1200mV

AUDIO OUT

BU5V

A8V

BACK-UP

SP OUT

BACK-UP

ACC

TEL MUTE

P-ANT

P-CON

PAN5

SERVO P-ANT

SW5V

AM+B

A8V

BU5V

P-CON

SW5V

AM+B

AUDIO+B

VCC

ILLUMI

BU5V

ILLUMI

PAN5V BU5V

PRE OUT

KEY

:CHANGER

CD/MD RECEIVER

FM (E Type)

FM (J/K Type)

AM (J/K Type)

AM (E Type) :

:1800mV

1372mV

600mV

855mV

3600mV

ELECTRIC UNIT (X34-)

SWITCH UNIT (X16-)

VREF

L-ch

R-ch

A. GND

A8V

D. GND

BU5V

LOE/LIM SW

12EJE SW

LOS SW

S7.5V

LO/EJ

MOTOR

S. GND

VREF

DRV MUTEMUTE

DOUT

DATA

CLK

MSTOP

MRST

MUTE L

MUTE R

TR COIL

FO COIL

APC SERVO

u-COM

IC2

16.934MHz

CLOCK

DRIVER

MOTOR

IC3

PROCESSOR

LPF

IC4

8V SW

Q3SW

D. GND

RF AMP

IC1

REF

5V REG

S. GND

A. GND

D. GND

SLED

5V SW

D. GND

LOADING & SLED

MOTOR

SPINDLE MOTOR

AMP

Q5,6,D3

CURR.

DM1

DM2

SW +5V

A+5V

PICK-UP (DPU1)

CD PLAYER UNIT (X32-5750-00)

BOARD (X34-)

MOTHER

MECHA ASSY (X92-)

TEL 13942296513 QQ 376315150 892498299

KDC-3031A/3031AY/3031G/3031GY

KDC-309A/309G/F331A/F331G

COMPONENTS DESCRIPTION

●ELECTRIC UNIT (X34-3412-7x)

Ref. No. Application / Function Operation / Condition

IC1 SYSTEM µ-COM System control.

IC3 POWER SUPPLY DC5Vx2, 7.9Vx1, 8.1Vx1, 10.3V, P.CON, P-ANT output.

IC4 POWER IC Audio signal amplifier.

IC6 MUTE LOGIC Mute control.

IC7 RDS DECODER RDS decode.

IC8 RESET “L” when detection voltage goes below 3.6V.

IC10 E-VOL & TUNER E-VOL, Tuner, Stereo decode.

IC11 E2PROM Saves and writes tuner adjustment data.

IC15 VFD REGULATOR 11.3V output voltage for LED and VFD.

Q51 SERGE DET “ON” when the base goes “H”.

Q52 BU DET “ON” when the base goes “H”.

Q53 ACC DET “ON” when the base goes “H”.

Q71 SERVO+B CONTROL SW “ON” when the base goes “H”.

Q72,73 SERVO+B AVR Output voltage level : 7.5V.

Q74 IC3 CONTROL SW “ON” when the base goes “H”(Output voltage : 10.3V).

Q151 PANEL 5V SW “ON” when the base goes “L”.

Q155 DSI ILLUMI SW “ON” when the base goes “L”.

Q252 IC4 STBY SW “ON” when the base goes “L”.

Q330 Q351, 352 MUTE DRIVER “ON” when the base goes “L”.

Q351 Lch PRE MUTE SW Pre-output is muted when the base goes “H”.

Q352 Rch PRE MUTE SW Pre-output is muted when the base goes “H”.

Q501 AM RF AMP Adjusts for AM-RF gain.

●CD PLAYER UNIT (X32-5750-00)

Ref. No. Application / Function Operation / Condition

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

IC1 RF AMPLIFIER responding generation of servo error (focusing error and tracking error) signals.

to CD-RW Detection of dropout, anti-shock, track crossing and off-tracking conditions, included

gain control function during CD-RW.

Focusing, tracking, sled and spindle servo processing.

IC2 CD SIGNAL PROCESSOR Automatic adjustment (focusing, tracking, gain, offset and balance) operations.

built-in µ-COM Digital signal processing (DSP, PLL, sub-codes, CIRC error correction, audio data

interpolation processing) operations, and microcomputer function.

IC3 4ch BTL DRIVER Focusing coil, tracking coil, spindle motor and sled motor driver, disc loading and

eject operation.

IC4 L.P.F.(LOW PASS FILTER) 2nd low pass filter for audio signals.

APC (AUTOMATIC POWER CONTROL)

LD power control.

Q2 DIGITAL +5V SW “ON” When P. ON signal goes “L”.

Q3 Q4 SW “ON”When P. ON signal goes “L” (SW+5V is ON).

Q4 ANALOG +8V SW “ON”When P. ON signal goes “L” (Q3 is ON).

Q5, 6 CURRENT AMP Current driver.

TEL 13942296513 QQ 376315150 892498299

KDC-3031A/3031AY/3031G/3031GY

KDC-309A/309G/F331A/F331G

●SWITCH UNIT (X16-2932-7x)

Ref. No. Application / Function Operation / Condition

IC1 VFD DRIVER

IC3 REMOTE SENSOR

Q1 GREEN LED SW “ON” when the base goes “H”.

Q2 RED LED SW “ON” when the base goes “H”.

Q21 PAN SW5V “ON” when the base goes “H”.

COMPONENTS DESCRIPTION

●SYSTEM µ-COM : IC1 on X34- (ELECTRIC UNIT)

Pin No. Active Pin Name I/O Application Processing Operation

(H/L)

1 DC ERR I DC offset detection input

2LINE MUTE I Phone detection NAVI MUTE : Over 2.5V, TEL MUTE : Below 1V

3ROTARY CW I Rotary encoder input

4AVSS -

5TUN TYPE1 I E-VOL setting switch Refer to “TUNTYPE” on theTRUTH TABLE

6TUN TYPE2 I E-VOL setting switch Refer to “TUNTYPE” on theTRUTH TABLE

7AVREF1 -

8VFD DATAF I Data input from VFD driver

9 VFD DATAS O Data output to VFD driver

10 VFD CLK O Clock output toVFD driver

11 L VFD RST O Reset output to VFD driver Display OFF, Key reset, TDF panel OFF : L

Display ON, Key scan :H

12 VFD CE O Chip enable output toVFD driver

13 ROTARY CCW I Rotary encoder input

14 L TDF DET I TDF panel detection TDF panel OFF : H,TDF panel ON : L

15 PWIC BEEP O Beep output

16~18 NC -

19 RDS AFSL O Tuner RDS mute output Refer to “RDS AFSL” on theTRUTHTABLE

20 L TUN ADJ I For adjusting IC10 Adjustment=H, PS1-1,2=L, PS1-3=Hi-Z,

PS2-1,2=Hi-Z, TUN DATA, CLK=Hi-Z

21 TUN SD I Tuner search stop output H : Station exists, L : Station does not exist

22~24 NC -

25 AUD SDA I/O Volume + tuner I2C data input and output

26 AUD SCL I/O Volume + tuner I2C clock input and output

27 H PWIC STBY O Power IC standby output Power IC ON : H, Power IC OFF : L

28 H VOL MUTE O E-VOL mute output L : Mute OFF, Hi-Z : Mute ON

29 L PWIC MUTE O Power IC mute output Power OFF : L, Standby : L,Tel mute : L

30 TUN FANC OUT O Tuner block (inside the µ-com) check OK : L, NG : H

MICROCOMPUTER’STERMINAL DESCRIPTION

TEL 13942296513 QQ 376315150 892498299

KDC-3031A/3031AY/3031G/3031GY

KDC-309A/309G/F331A/F331G

Pin No. Active Pin Name I/O Application Processing Operation

(H/L)

31 RESET2 O Mute for reset Output L

32 RDS DATA I RDS decoder data input

33 VSS1 -

34 RDS QUAL I RDS decoder QUAL input

35 L ACC DET I ACC detection ACC exists : L, ACC does not exist :H

36 L BU DET I Momentary power-down detection BU exists : L

BU does not exist (Momentary power-down) : H

37 NC -

38 PS2-2 O Power supply control output

Refer to “POWER IC CONTROL” on theTRUTHTABLE

39 PS2-1 O Power supply control output

Refer to “POWER IC CONTROL” on theTRUTHTABLE

40 PS1-1 O Power supply control output

Refer to “POWER IC CONTROL” on theTRUTHTABLE

41 PS1-2 O Power supply control output

Refer to “POWER IC CONTROL” on theTRUTHTABLE

42 PS1-3 O Power supply control output

Refer to “POWER IC CONTROL” on theTRUTHTABLE

43,44 NC -

45 CD MUTE I CD mute request L : Mute request

46 L CD MSTOP O CD mecha u-com stop

H : mecha µ-com operates, L :mecha µ-com is stopped

47 CD LOE LIM SW I CD detection (chucking switch) H : Loading is finished, L : Disc does not exist

48 CD LOEJ I/O CD motor control Refer to “CD MECHA CONTROL OPERATION”

on the TRUTH TABLE

49 CD MOTOR O CD motor control Refer to “CD MECHA CONTROL OPERATION”

on the TRUTH TABLE

50 NC -

51 L CD MRST O CD mecha µ-com reset H : Normal condition, L : Reset

52 CD SCL I/O CD mecha I2C clock output

53 CD DISC12 SW I 12cm CD detection

54 CD LOS SW I CD loading detection

55 CD SDA I/O CD mecha I2C data input and output

56 OEM DISP CE I/O External display chip enable External display

57 OEM DISP CLK I/O External display clock External display

58 OEM DISP DATA I/O External display chip data External display

59 DSI O DSI control DSI ON : H, DSI OFF : L, TDF DET=H (DSI blinks)

60 L RESET I

61 NC -

62 L PON FL O VFD power supply ON VFD ON : H,VFD OFF : L

TDF DET H (DSI blinks) : L, TDF DET L :H

63 KEY REQ I Communication request fromVFD driver L : Key input

64 RDS CLK I RDS decoder clock input

65 REMOTE I Remote control input

66 NC -

67 VSS0 -

68 VDD1 -

69 X2 -

MICROCOMPUTER’STERMINAL DESCRIPTION

TEL 13942296513 QQ 376315150 892498299

KDC-3031A/3031AY/3031G/3031GY

KDC-309A/309G/F331A/F331G

Pin No. Active Pin Name I/O Application Processing Operation

(H/L)

70 X1 -

71 TEST -

72 XT2 -

73 XT1 -

74 VDD0 -

75 AVDD -

76~78 TYPE 3~TYPE 1 I Destination switch

79 RDS NOISE I Tuner quality (Noise) input

80 TUN SMETER I Tuner S-meter input

MICROCOMPUTER’STERMINAL DESCRIPTION

●TRUTHTABLE

•TUNTYPE

TYPE 1 TYPE 2

General models commercially-designated as pure KENWOOD brand (Initial value) LL

Initial value setting

• RDS AFSL (AF search)

High Normal condition communication (IC10 side : High)

(Quality time constant long / Stereo Decoder PLL : Not hold)

Low AF search (IC10 side : Middle)

(Quality time constant short / Stereo Decoder PLL : Hold)

• POWER SUPPLY IC (IC3) CONTROL

SEL1 (Pin No.11)

PS1-2 PS1-3 PS2-1 ILLUMI P-CON P-ANT

LLLOFF OFF OFF

LLHONOFF OFF

HLHONONOFF

HHHONONON

SEL2 (Pin No.12)

PS1-1 PS2-2 AUDIO SW5 AM

LLOFF OFF OFF

HLONON OFF

HHONON ON

• CD MECHA CONTROL OPERATION

CD LOEJ CD MOTOR CD MECHA OPERATION

LH Load

HH Eject

Hi-Z L Stop

Hi-Z H Brake

TEL 13942296513 QQ 376315150 892498299

KDC-3031A/3031AY/3031G/3031GY

KDC-309A/309G/F331A/F331G

●CD MECHANISM µ-COM : IC2 on X32- (CD PLAYER UNIT)

Pin No. Active Pin Name I/O Application Processing Operation

(H/L)

1TVD O Traverse drive output (PWM output).

2SPL O Spindle motor drive output (PWM output).

3NC-No connection.

4PWM O Multipurpose PWM output.

5TBAL O Tracking balance adjustment output (PWM output).

6FBAL O Focusing balance adjustment output (PWM output).

7NRFDET I RF detection signal input. L : Detection

8OFT I Off-tracking signal input. H : Detection

9BDO I Drop-out signal input. H : Detection

10 LDON O Laser-on signal output. H : Focus ON

11 DSLB O DSL balance output.

12 DVDD1 - Power supply for digital circuit.

13 DVSS1 - GND for digital circuit.

14 AVSS2 - GND for analog circuit. For DSL, PLL and A/D converter

15 DSLF I/O Loup filter for DSL and bias output for ARF.

16 ARF I RF signal input.

17 RFSW I DSL circuit time constant switch.

18 PLLF I/O Loup filter for PLL.

19 PLLF2 I/O Loup filter character switch for PLL.

20 IREF I Reference current input.

21 RFENV I RF envelope signal input.

22 TRCRS I Tracking cross signal input.

23 TE I Tracking error signal input.

24 FE I Focusing error signal input.

25 AVDD2 - Power supply for analog circuit. For DSL, PLL and A/D converter

26 AVSS1 - GND for analog circuit. For Lch/Rch audio output

27 OUTR O Rch audio output.

28 AVDD1 - Power supply for analog circuit. For Lch/Rch audio output

29 OUTL O Lch audio output.

30 DVSS3 - GND for digital circuit.

31 CSEL -

32 NC - No connection.

33 ASEL -

34 MSEL0 -

35 MSEL1 -

36~39 NC - No connection.

40 VREFP - Reference power supply input for A/D converter.

41 HOT -

MICROCOMPUTER’STERMINAL DESCRIPTION

TEL 13942296513 QQ 376315150 892498299

KDC-3031A/3031AY/3031G/3031GY

KDC-309A/309G/F331A/F331G

MICROCOMPUTER’STERMINAL DESCRIPTION

Pin No. Active Pin Name I/O Application Processing Operation

(H/L)

42 8EJE SW -

12EJE/SDET SW

44 LOE/LIM SW I Loading-end detection / H : Loading-end detection

Pick-up inner circumference detection. L : Pick-up inner circumference detection

45~49 NC - No connection.

50 DVDD2 - Power supply for digital circuit.

51 X1 I Main clock input.

52 X2 O Main clock output.

53 DVSS2 - GND for digital circuit.

54 XSUB1 -

55 NC - No connection.

56 TEST1 - Test terminal. Normal condition : “H” fixed

57 TEST2 - Test terminal. Normal condition : “H” fixed

58,59 NC - No connection.

60 DRV MUTE O Driver mute control. L : Mute ON, H : Mute OFF

61 L MUTE L O Audio Lch mute output.

62 L MUTE R O Audio Rch mute output.

63 L RST I LSI reset input.

64 OCD CLK -

65 L MSTOP I Standby detection.

66 DATA I/O

I2C bus data line (Communication line to system µ-com).

During serial writer is connected.

67 SBIO I Data input. During serial writer is connected.

68 L CLK I/O

I2C bus clock line (Communication line to system µ-com).

During serial writer is connected.

69 TX O Digital audio interface signal output.

70 NC - No connection.

71 XSEL -

72 MCNT I Loading control / Eject control. L : OFF (Host control), H : Mecha µ-com control

73 P. ON O Audio & Servo power supply control. L : Power supply ON.H : Power supply OFF

74,75 NC - No connection.

76 CD-RW O CD-RW control. H : CD-RW, L : Normal disc

77 NC - No connection.

78 DVDD3 - Power supply for digital circuit.

79 FOD O Focusing drive output (PWM output).

80 TRD O Tracking drive output (PWM output).

TEL 13942296513 QQ 376315150 892498299

KDC-3031A/3031AY/3031G/3031GY

KDC-309A/309G/F331A/F331G

TEST MODE

How to enter the test mode

While simultaneously press PRESET“1”key and PRESET“3”

key, press “RESET” button.

How to release the test mode

Press “RESET” button. (The release cannot be achieved in

the conditions of POWER OFF and ACC OFF.)

Initial conditions of the test mode

• The source is “STANDBY”.

• The displays all lit up.

• The volume is at –10dB (The display shows “30”.)

• LOUD is “OFF”.

• SYSTEM Q is “NATURAL”.

• BEEP is sounded at all time with the key depressed for less

than 1 second.

Special displays when all indicator lights are lighted

When “PRESET” keys are pressed while all indicators for the

STANDBY sources are lighted, the following displays will ap-

pear.

PRESET

•Version display (8 digits : month, date, hour, minute)

“1” key (Display) :x x x x x x x x

PRESET

•Serial number display (8 digits)

“2” key (Display) :x x x x x x x x

PRESET

•When pressed for less than 1 second : POWER ON

“3” key time display (STANDBY source time is not counted.)

(Display) : PON x x x x x MAX 60,000 (hours)

*The display is cleared by pressing the key for more

than 2 seconds.

PRESET

• When pressed for less than 1 second : CD operation

“4” key time display

(Display) : PLY x x x x x MAX 60,000 (hours)

*The display is cleared by pressing the key for more

than 2 seconds.

PRESET

•When pressed for less than 1 second : CD EJECT

“5” key number display

(Display) : EJC x x x x x MAX 60,000 (times)

*The display is cleared by pressing the key for more

than 2 seconds.

PRESET

• When pressed for less than 1 second : Panel open/

“6” key close number display

(Display) : PNL x x x x x MAX 600,000 (times)

*The display is cleared by pressing the key for more

than 2 seconds.

“FM” • ROM CORRECTION version display

key (Display)

Effective : ROM _ Rxxx (x :number)

Not effective (When not able to read)

: ROM _ R – – –

Not effective (When version is different)

: ROM _ R✳✳✳

“AM” • IC10 adjustment status (Refer to “ADJUSTMENT” on

key the following page.)

(Display)

Adjustment complete : E2P _ OK _ _

Adjustment not completed : E2P _ ER _ _

Communication error : I2C _ ER _ _

*When other than “E2P _ OK _ _” , Pin No. 30 will

become “H”.

“”•Mechanism error detection status

key • Communication error →Error No. 1 →Error No. 2 →

Error No. 3 →Communication error (Error No.1 is the

most recent error.)

(Display)

Communication OK : I2C _ OK _ _

Communication error : I2C _ NG _ _

Not detected : ERR _ n – – – (n : 1~3)

Detected : ERR _ n-✳✳ (✳✳ : error code)

*The display is cleared by pressing the key for more

than 2 seconds.

TEL 13942296513 QQ 376315150 892498299

KDC-3031A/3031AY/3031G/3031GY

KDC-309A/309G/F331A/F331G

ADJUSTMENT

●DC offset error detection confirmation mode

Confirmation mode :

While depressing PRESET “3” key and PRESET “6” key

simultaneously, press on the “RESET” button.

(Display) Detected : DC _ ERR _ _

Not detected : DC _ OK _ _ _

* By pressing “TI” key while “DC _ ERR _ _” is being dis-

played, detection status is cleared. This will result in the

display of “DC _ OK _ _ _”.

Release Method : Press “RESET” button.

●Mechanism memory clear confirmation mode

Confirmation mode :

While depressing “ATT” key and “Q” key simultaneously,

press “RESET” button.

(Display) : MEM _ CLR _

*Two seconds after the confirmation mode boots up, Mecha-

nism memory clear as a result is displayed.

(Display) Clear status display normal completion

: CD _ O _ _ _

Clear status display abnormal completion

: CD _ X _ _ _

Release Method : Press “RESET” button.

After replacing the following parts, adjust as follows.

REPLACED PARTS ADJUSTMENT ITEMS

Ref. No.

Function / Parts name

1st AM MIX 2nd AM MIX FM antenna

IC10 E-VOL & TUNER YES YES YES

IC11 E2PROM YES YES YES

L507 VCO COIL YES YES YES

L508 1st AM MIX IFT YES - -

L509 2nd AM MIX IFT - YES -

L518 FM ANTENNA COIL - - YES

D504 VARIABLE YES YES YES

CAPACITANCE DIODE

D506 VARIABLE YES YES YES

CAPACITANCE DIODE

X501

CRYSTAL RESONATOR

YES YES YES

●1st AM MIX / 2nd AM MIX ADJUSTMENT

ADJUSTMENT POINT : L508 (1st AM MIX) / L509 (2nd AM

MIX)

VOLTAGE VALUE CHECK POINT : S-METER check land (X34-)

Adjust so that S-METER voltage value becomes maximum.

• SG setting

DESTINATION

FREQUENCY MODULATION ANTENNA INPUT

Europe 999kHz OFF 35dBµV (EMF)

Except Europe 1000kHz OFF 35dBµV (EMF)

●FM ANTENNA ADJUSTMENT

ADJUSTMENT POINT : L518

VOLTAGE VALUE CHECK POINT : S-METER check land (X34-)

Adjust so that S-METER voltage value becomes maximum.

• SG setting

DESTINATION

FREQUENCY MODULATION ANTENNA INPUT

Europe 87.5MHz OFF

5dBµV (LOAD) or

11dBµV (EMF)

Except Europe 87.9MHz OFF

5dBµV (LOAD) or

11dBµV (EMF)

SPECIAL MODE

TEL 13942296513 QQ 376315150 892498299

KDC-3031A/3031AY/3031G/3031GY

KDC-309A/309G/F331A/F331G

EDCBA

PC BOARD

(COMPONENT SIDEVIEW) (FOIL SIDEVIEW)

C63

C64

VCC

EJECT

AUTO

RESET

6171

1866

5321SRCQ

VOL

AUD

ATT 4

D31

D32

D64

D33

D34

D35

D36

D37

D38

D39

D40

D41

D42

D43

D44

D45

D46

D47

D48

D49

D50

D51

D52

D53

D54

D61

D62

D65

D70

ED1

S12

S11

IC3

SWITCH UNIT X16-2932-7x (J76-0055-02) SWITCH UNIT X16-2932-7x (J76-0055-02)

W11

W13

W14

W12

C11

C12

C10

C15

C21

C61

CP11

R70

R1 R2

R11

R13

R14

R15

R16

R17

R18

R19

R21

R22

R31

R32

R33

R34

R62

R63

R71

R72

R74

R75 R77

R82

R23

R78

R61

R80

RTRY-CW

RST

KS3

ESD-GND

CLK

REMO

TDF-DET

RTRY-CCW

DATAS

ILL-D-GND

KS1

KI4

KI1

KI2

KI3

LED+B

DATAF CE

KS4

PAN5V

FL-SW9.8V

KS2

PAN-SW5V

FL+B

VFD-RST

KI5

41 40 21 20

EBEB

C65

D96

D71

D72

D73

D74

D75

D76

D77

Q21

IC1

X16-2932-7x

Ref.No. Address

IC1 4D

Q21 5D

Refer to the schematic dia-

gram for the values of resis-

tors and capacitors.

TEL 13942296513 QQ 376315150 892498299

KDC-3031A/3031AY/3031G/3031GY

KDC-309A/309G/F331A/F331G

FGHIJ

PC BOARD (FOIL SIDEVIEW)

J1/L51

BU+5V

LXCLK

LXDATAM

LXDATAS

DATA

CLK

R312

W322

W355

W345

L61

C409

C51

C71

C78

C79 C80

C97

C117

C255

C256

C258

W340

W398

R72

R73

W337

W365

W251

C257

W403

L51

W425

R21 R58

W388

W426

R59

W334

W330

W324

W320

W408

W378

W332

W376

W315

W402

W317

W419

W423

W424

W351

W418

W352

W405

W406

W416

W385

W390

W377

W379

W381

W362

W357

W387

W383

W375

W393

W391

W427

W312

W335

W413

W414

W409

W415

W417

W404

W421

W422

C119

R363

L101

W395

W410

W407

W412

W401

W397

W396

W389

W374

W354

W373

W358

W318

W327

W336

W314

W353

W313

W399

R81

W380

W392

W382

W386

W349

W316

W321

W346

W331

W333

W363

W366

W319

W347

W350

W342

W359

W338

W371

W341

W360

W326

W394

W372

W420

W370

W356

W329

W343

W344

W368/

W384

W323

W325

W328

W369

W364

W361

W339

W348

C201

R57

R61

R85

R364

R365C154

R366 C52

C410

R412

R414

R416

R419

R420

R441

R453

R454

C53

C69 C72

C73

C74

C75

C76

C77

C81

C82

C112

C113

C407

C408

C411

C420

C565

R130

R52

R53

R56

R82

R190

R191

R193

R194

R252

R254

R257

R367

R411

R413

R415

R417

R418

R440

L301

R456

R471

W70

C54

C55

C116

W58

W81

R51

R54

R55

R60

R75

R76

R77

R78

R83

R86

R87

R88

R89 R90

R96

R112

R113

C118

R178

R180

R181

R182

R200

R251

R255

R256

R271

R272

R273

R303

R351

R352

R353

R355

R356

R357

R358

R359

R360

R368

R369

R370

R371

R431

R432

R433

R435

R436

R437

R438

R439

R450

R451

R452

R457

R470

TH1

R131

W69

W252

W71

W67

W98

W61

C152

W59

W60

R114

R199

R372

W63

W57

W66

W62

W65

W64

W73

R480

W53

W51

226

224

123

16 9

127

R253

W72

W96

W97

W78

W91

W83 W82

R313 W80

W79

R135

W68

W99

R133

R136

R137

R138

R140

R139

R141

R100

C153

R151

C422

W102

W52

RST

SCL

TEST

BU5V

AFS

ADJ

DATA

OEM-DATA

OEM-CE

OEM-CLK

16 1

60 61

BEE

D77

D57

D71

D302

J1/

D52

D54

D203

D259

D260

Q72

Q73

D254

D73

CN2

WH1

Q155

D72

D75

D251

D252

D253

D255

D256

D257

D258

D401

Q71

Q51

Q52

Q74

Q252

D53

D55

D76

D261

Q53

D74

D402

D403

D81

IC4

IC3

IC6

IC1

IC8

IC7

IC11

ELECTRIC UNIT X34-3412-7x (J76-0048-12)

TEL 13942296513 QQ 376315150 892498299

KDC-3031A/3031AY/3031G/3031GY

KDC-309A/309G/F331A/F331G

ONMLK

W322

R596

R598

C562

R600

C515

R601

W833

W310

C96

C97

C505

C507

C508

C512

C547

C563

C584

C600

CF51

CF52

CF53

CF54

W300

L505

L506

L507

L508

L605/R607

W835/

L604/R608

W834/

L509

L518

W301

W251

C303

C331 C332

W306 L501

L502

L503

L504

L520

W324

W320

R338

R339

W315

R544

R523 C542

W308

R597

W801

X501

W302

W304

W305

W307

W309

W314

W311

W319

W325

W303

R172

C551

C579

C556

R605

W152

C333

C334

C503

C506

C509

C510

C511

C513

C516

C517

C518

C519

C520

C623 W803

C521

C522

C526

C527

C531

C543

C545

C548

C553

C554

C559

C561

C568

C582

C583

C580

C585

C586

C587

C627

C588

R562

C589

C590

W820

C601

C604

C605

C606

C628

W92

R97

R335

R336

R504

R506

R565

C626

C301

C302

C502

C504

C514

C524

C525

C541

C544

C549

C550

C564

C581

L521

R96

R98

R152

R153

R156

R157

R158

R159

R160

R161

R162

R163

R164

W94

R301

R302

R303

R304

R305

R306

R307

R308

R309

R310

R311

R332

R435

R436

R501

R502

R503 R505

R507

R520

R521

R522

R543

R545

R546

R561

R566

C620

R567

R589

R590

R591

R592

R603

R594

R602

L600

W87

C602

W506

W804

W812

W814

C610

R599

W604

W611 W805

W605

W802

W832

W826

R331

W75

9106751

23481211 13 R

W93

L601

C620

W823

W76

W79

W88

W85

W89

W86

W90

L602

R99

W808

W831

W810 W806

W807

C624

C625

00 TUNOUT

S-METER

60 61

BE BE

D301

D302

D303

D304

D305

D306

D162

CN3

Q151

Q330

D501

D504

D506

Q351 Q352

D502

D503

Q501

IC15

IC10

IC11

Refer to the schematic diagram for the values of

resistors and capacitors.

X34-3412-7x

Ref.No. Address

IC1 6I

IC3 4G

IC4 2J

IC6 4I

IC7 4I

IC8 6H

IC10 5L

IC11 4K

IC15 6K

Q51 3I

Q52 3I

Q53 3H

Q71 3G

Q72 2F

Q73 3F

Q74 5H

Q151 6L

Q155 6H

Q252 3I

Q330 3K

Q351 3L

Q352 3L

Q501 4L

TEL 13942296513 QQ 376315150 892498299

KDC-3031A/3031AY/3031G/3031GY

KDC-309A/309G/F331A/F331G

PQRST

PC BOARD (COMPONENT SIDEVIEW)

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

C10

C14

C15

C31

C33

C36

C41

C42

C43

C44 C45

C46

C47

C48

C50

C61

C62

C71 C72

C73

C74

C75 C76

CP1

CP2

R9 R10

R31

R36 R37

R39

R40

R41

R42

R46 R47

R49

R50

R53

R81

R82

R83

R84

R85

R86

R87

R88

120 21

IC2

IC4

CD PLAYER UNIT X32-5750-00 (J76-0059-02)

X32-5750-00

Ref.No. Address

IC2 4S

IC4 2S

Q6 5R

TEL 13942296513 QQ 376315150 892498299

KDC-3031A/3031AY/3031G/3031GY

KDC-309A/309G/F331A/F331G

YXWVU

PC BOARD (FOIL SIDE VIEW)

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

CN1

CN2

IC1

IC3

CD PLAYER UNIT X32-5750-00 (J76-0059-02)

C7 C8

C11

C12

C13 C16

C17

C18

C32

C34

C37

C38

C39

C40

C49

C51

C52

C77

C78

CP3

CP4 CP5

R6 R7

R8 R11

R12

R13

R14

R15

R32

R33

R34

R35

R38

R43

R44

R45

R48

R51

R52

R71

R72

R89

R90

R91

R92

R100

C101C102

C100

FCS

SLED

SPDL

FBAL

RW SPL

TRD

TVD

FOD

PON

GND

IOP+

RF F

ARF E

D/ARF

BU.5V

IOP- TE

SBIO

RFENV

TRCRS

OFT

BDO

PWM

B/TE

TBAL

LDON

A/TE

VDET

K24

SPDL-

SPDL+

A.GND

Lch

A.+8V

Rch

S.7.5V

S.GND

MOTOR

LO/EJ

8EJE

GND

SLED OUT

/LOAD

SLED IN

/EJECT

TRK IN

TRK OUT

FCS DOWN

FCS UP

D.GND

VCC

/MUTEL

/MUTER

12EJE

D.OUT LOS

LOE/LIM

/CLK

DATA

LDCNT

/MRST

/MSTOP

NRFDET

GCTL

TRK

DRVMUTE

115

Vref

Vref 2

P51

P50

P53

P54

P52

X32-5750-00

Ref. No. Address

IC1 5W

IC3 2W

Q1 5X

Q2 4X

Q3 4W

Q4 3V

Q5 5V

TEL 13942296513 QQ 376315150 892498299

KDC-3031A/3031AY/3031G/3031GY

KDC-309A/309G/F331A/F331G

ABCDE

X34-3412-7x (1/4)

4.7K

22K

FM : 0V

4.6V

AM : 0V

3.3V

3.9V

8.1V

4.0V

4.7V

4.0V AM : 5.9V

FM :5.9V

4.0V

2.5V

8.1V

4.0V3.0V

8.1V

4.0V

5.0V

0.2V

3.4V

5.0V

3.3V

0.6V

3.8V

8.1V

3.0V

5.0V

3.0V

8.1V

4.3V

2.2V

1.8V

8.1V

4.3V

3.8V

2.0V

3.5V

8.2V

7.8V

2.5V

5.0V

2.5V

FM : 4.3V

AM : 5.5V

AM : 0V

FM : 2.4V

AM : 1.8V

FM : 0V

FM :

AM :

AM : 3.5V

FM : 0V

AM : 4.3V

FM : 3.7V

AM : 3.0V

FM : 0V

AM : 4.9V

FM : 4.5V

AM : 4.2V

FM : 0.2V AM : 3.1V

FM : 0V

AM : 0V

FM : 4.0V

AM : 4.1V

FM : 5.2V

AM : 8.0V

FM : 8.1V

8.1V

2.8V FM : 0V

AM : 3.75V

AM : 3.8V

FM : 0V

5.0V

3.0V

IC7

IC10

ELECTRIC UNIT (X34-3xxx-xx)

DAUGHTER UNIT (X89-2690-10)

∗

D162

D506

D502

D503

D501

Q501

REMOTE

WIRED

D504

∗

CN3

2/2 X16-

Q222

Q221

Q225

CN91

CN90

to 2-PRE OUT

KRA303-P or

RT1P241M

DTA124EUA orQ225 ::Q221,222 DTC143TUA or

RT1N430M

KRC410-P or

(X89- )

(X89-2690-10)

E-VOL & TUNER

2-PREOUT

MUTE

AM RF AMP

RDS DECODER

ANT.

MPTC

GND

FSU

C589

L519

4.7NH

C116

330P

10u16

C117

2.2u50

TP314 FSELFILOUT

C118

C119

0.01

OSCINMPX

EXTRES

ARI

GND

OSEL

VCC

OSCOUTVREF

RDDA

QUAL T57

RDCL

4.7uH

L101

C113

10P

C112

10P

TP317

R114

R113 2.2K

R112 2.2K

TP501

R544 2.2K

R543

5.6K

C541

270P

L507

C543

C610

C542

15P

C544

R595

R59

TP157

VFD DATAF

VFD CE

VFD CLK

VFD DATAS

REMOTE

RTRY CCW

TDF DET

ESD GND

15 10

12 8

TP166

470

TP164

TP163

TP162

100

470

TP161

TP160

TP159

TP158

2.2K

470

FL+B

VFD RST

RST

R156 1K

R157 1K

TP156

TP154

TP155

2.2M

100K

R193 XTALG

10.250MHz

X501

0.033

C549 2200P

R546 4.3K

R545 33K

C553 0.1

C559 3300P

C548

0.022

C547

22u10

0.01

C623

0.01

0.1

R604

VCC

LPHC

VCOE

GND

LPOUT

VCOB

WINTC2

VCC3

VREF2

ISSTC1

ISSTC2

C620

0.01

OUTRR

WININ

SSTOP

DCOUT

R567 1K

R566 1K 32

IN1L

SDA

XTALD

SCL

OUTFR

IN1R

IN1C

OUTRL

OUTFL

TP431

TP430

R507

C504

0.01

1000P

C521

L505

0.33uH

C522

C626

1000P

R520

220 R521

1.5K

18P

C524

15P 0.33uH

C525 L520

C516 L501

10P

C503 0.1

C505

4.7u16

C502

L502

33uH

1500P

R501

6.8K

6.8uH

R502

2.2K

L518

∗C526

100P L521

10NH

∗C604

C518

C520

C517

0.47

∗C606

∗C605

L506

100P

R503

2.2K

C507

22u10

C506

0.68

C510 100P

C509 68P

R504

4.7

C508 22u10

C602

150P

L600

TP506 L4

R505

L503

1000uH

R594

R605

10 100uH

TP507

∗R172

TP345

L602

R2 10

R1 10

C581

450.000kHz

CF54

VCCIF1

IF1AMP1OUT

IF1REF

IF1AMP1IN

GND

IF1AGCIN

FSTC

AMAGC2TC

MIX1OUT2

C519

0.47

C531

R603 56

C514

GND

FMMIX1IN2

WINTC1

FMAGCTC

TV1

FMMIX1IN1

FMPINDR

AMRFAGCOUT

AMPINDR

AMMIX1IN1

AMMIX1IN2

DEVTC

MUTETC

MIX1OUT1

0.47u50

C563

R599

C582

0.022

0.1

1u50

100P

C579

0.01

GND

AMMIX2OUT2

AMMIX2OUT1

VCC2

FMMIX2IN1

FMMIX2IN2

AMRFAGCTC

IF1AMP2OUT

AMDETC

AMREFDEMC

IF1AMP2IN

SMUTE

QUALITYOUT

VCC

MPXIN

MPXOUT

AMIFREE

FMREFDEMC

GND

AMIFIN

VREF1

FSW

AFS

IN2R

IN2L

C58

R601

1u50

0.022

3900P

0.068

C624

0.01

L508 10.700MHz

CF51 10.700MHz

CF52 L509

10.700MHz

CF53

R591

51K C585

0.01

TP50

R158

∗R162

R163

R164

R178

R190

R191

R182

R181

R180R160

R161

470K

R597

C551

R596

6800P

C545

C550

R522

22K 1000P

C527

0.01

C625

L504

R506 1M

C601

C515

C590

C583

C587

C584

GND

2.2K

4.332MHz

FL+B

SW5V

LED+B

R159

VCC1 (DIG)

C222

C221

10u16

270

R221

10u16

270

R222

R225

TP2

100

R229

R226

30K 30K

TP3 100

R230

TP1

W101

MUTE

GND

2VDD

TP8

TP6

TP5

TP4

TP7

GND

390K

R565

C554 0.33

0.01

C513

1.2K

R602

MD RECEIVER E303MD J

EKDC-2031SG/Y EKDC-2031SA/Y MKDC-229 MKDC-129/S KKDC-128/CR KKDC-1028 JRDT-101 JE202 EKDC-F331G EKDC-F331A EKDC-309G EKDC-309A EKDC-3031G/Y EKDC-3031A/Y MKDC-3029R MKDC-3029 MKDC-2029

CD RECEIVER

KKDC-228 EKDC-WF431A EKDC-W4531/Y EKDC-W431GY EKDC-W409/Y EKDC-W4031/Y MKDC-MP4029/G

DISPLAY

MKDC-MP3029

14-SEGMENT

KKDC-MP228

(MP3/WMA)

KKDC-MP2028

CD RECEIVER

JE303/S

FUNCTION MODEL NAME

CATEGORY/ DESTI-

NATION

DISPLAY

14-SEGMENT

7-SEGMENT

DISPLAY

CD RECEIVER YES

YES

DAUGHTER UNIT

X89-2690-10

+8V-A

R56

TEL 13942296513 QQ 376315150 892498299

KDC-3031A/3031AY/3031G/3031GY

KDC-309A/309G/F331A/F331G

X34-3412-7x (2/4)

JIHGF

47K

10K

3.4V

0.4V

1.6V

4.9V

0V or 5V

0V 0V

5V 5V

5V 0V

5.0V

4.0V

0V or 5V

4.0V

5.0V

0.2V

3.4V

5.0V

3.3V

0.6V

3.8V

8.1V

3.0V

5.0V

4.5V

5.0V

0V or 5V

5.0V

14.4V

11.4V

5.0V

0.5V or

5.0V

1.4V

IC11

IC6

IC8

IC15

∗

IC1

CN2

∗

Q151

Q155

D403

D203

D402

VFD REGULATOR

D401

DSI

∗

SYSTEM u-COM

PANEL

5V SW

DSI

ILLUMI SW

E2PROM

RESET

MUTE

LOGIC

S-METER

MD RECEIVER

to CD or MD PLAYER UNIT (X32- or X33- )

RDS QUAL

TUN FUNC OUT

PWIC MUTE

PWIC STBY

PS1 3 RDS AFSL

100K

R371 4.7K

C600

L601

100u10

R590 10K

ILL D GND

PAN5V

RTRY CW

(LED+VFD)

FL+B

RST

C153

R153

R156 1K

TP156

TP154

TP155

TP153

R194

R152

TP152

TP151

TP510

TP431

∗W152

R200

R199

240

TP375

SCL

VCC

GND SDA

TP430

47K

R592

22K

10K

R436

10K

R453

47K

40 PS1 1

PS1 2

PS2 1

PS2 2

BU DET

L602

C564 0.47

C568

270P

R2 100

R1 100

000kHz

F54

C561 0.1

C586 1

C588 0.47

C512

10u16

100K

4.7K

R561

TP504

TP414

TUN ADJ

R438 1K

R437 1K

VOL MUTE

RDS DATA

ACC DET

VSS1

RESET2

LX REQ M

AUD SCL

AUD SDA

LX CON

LX RST

TUN SD

R432

4.7K

TP410

TP409

20 R439

∗R431

2.2K

VCC

R456

GND

∗R312

100K

∗R313

SERVO+B

CD/MD MUTE L

CD/MD SDA

CD LOS SW

CD DISC12

D-OUT

CD/MD SCL

CD/MD MUTE R

AUDIO+B

GND

Lch

Rch

2024 22

TP351

TP353

TP352

18 16

TP356

TP355

TP354

TP358

TP357

DGND

CD/MD LOE LIM

CD/MD MSTOP

CD/MD MRST

1113

BU5V

CD MOTOR

CD LOEJ

D5V

DGND

812 10

TP360

TP359

TP362

TP361

TP365

TP364

TP363

TP367

TP366

0.47u50

470

R352 2.2K

R351 2.2K

R370 4.7K

0.47u50

R363 4.7K

R358 2.2K

∗R357 2.2K

R356 1K

R355 1K

R353 1K

SERVO

TP369

TP371

TP374

TP373

TP372 R360 2.2K

R359 100

∗R470

TP432

∗R450 470

∗R451 470

∗R452 470

TP406

TP405

TP407

CD LOS SW

CD LOEJ

CD/MD LOE LIM SW

CD/MD MSTOP

CD/MD MUTE

CD DISC12 SW

CD/MD MRST

CD DISC8 SW

CD MOTOR

CD/MD SCL

RESET

KEY REQ

RDS CLK

OEM DISP DATA

OEM DISP CLK

OEM DISP CE

CD/MD SDA

DSI

PON FL

REMOTE

C411

R441

47K

2.2K

100K

∗R480

R96

∗R366

R365 4.7K

∗R364 4.7K

R367 100K

∗C152 0.1 ∗R372 470

27K

R100

2.7K

C97

47u16

OUT

VCC

R97

3.3K 100K

R99

GND

CTL

R98

C96

0.47u50

DC ERR

LINE MUTE

ROTARY CW

AVSS

TUN TYPE1

TUN TYPE2

AVREF1

VFD DATAF

VFD DATAS

VFD CLK

VFD RST

VFD CE

ROTARY CCW

TDF DET

PWIC BEEP

LX DATA S

LX DATA M

LX CLK

XT1

LX REQ S

VSS0

VDD1

TEST

XT2

RDS NOISE

TUN SMETER

TYPE 2

VDD0

AVDD

TYPE 3

TYPE 1 77

R433

2.2K

R440

47K

W365

10K

10.000MHz

18P

C422

R457

∗R412

22P

22K

∗R414

22K

∗R416

22K

C420

1000P

∗R411

∗R471

22K

∗R413

22K

∗R415

22K

10K

TP411

22K

R417

22K

R418

L61

4.7uH

C409

100u6.3

C410

0.01

TP408

TP404

470K

470

R435R589

2.2

R600

0.01

C562

10u10

C556

3NC VDD 2

VSS OUT

32.768KHz

C408

C407

100P

0.22

22K

0.01

C201

R454

4.7K

+5V

SERVO+B

FL+B

+5V

+8V

SW5V

+8V

SW5V

LED+B

CD DISC8

GND

3,43

C565

W826

R368

R369

R562 10M

PIN No.

PIN NAME

MD LOAD

MD EJECT

MD LOS EJE SW

MD LOS EJE

MD EJECT

MD LOAD

ECB

2SB1565 DTA114EE

DTC143TUA

2SA1362

2SA1576A

2SD1858 2SC4081

TEL 13942296513 QQ 376315150 892498299

KDC-3031A/3031AY/3031G/3031GY

KDC-309A/309G/F331A/F331G

X34-3412-7x (3/4)

KLMNO

4.7K

22K

22K 22K

22K

2.3V

4.6V

10.2V

14.4V

5.0V

8.1V

14.4V

8.1V

13.6V

5.0V

VDD

0V 6.8V

0V 4.5V

14.4V

6.8V

6.9V 2.0V

4.3V

VDD

10V

14.4V

7.0V

6.8V

6.9V

7.0V

4.8V

6.9V

14.4V

∗

IC4

IC3

∗D260

Q352

∗WH1

Q351

REAR

Q330

J6 LX BUS

D256

D258

D254

D252

Q252

D259

KP2311ETR-G:D502,503 KV1430STL-G

HVC383B-E

D504

D506 :

D55,261 S2V60∗A

AM01ZNF or

1SR154-400

D1F60-5063 or

UDZS4.7B or

MAZ4082N-L

1SS133

RN739F

B30-1567-05

KDS121-P or

DAN202U or

02DZ4.7F-Y

MAZ4062-L

MC2848

10EDA20

D76,402,403

D203,259,260

D162,301-304

D401

D501

D81

D72,74,75,251-253,255-258

D73,77,254

D57

D71

KTA2014P(Y,GR) or

2SA1063A

RT1P241M

RT1P144M

KRA307-P or

2SA1576A or

DTA124EUA or

KRA303-P or

DTC143TUA or

UDZS6.8B or

IMSA-6801-E

02DZ6.8F-Y

MAZ4068N-M

RT1N430M

HN3G01J(BL)-F

1SS355

KRC410-P or

D52,54,305,306

D53

Q501

Q252

Q330

Q351,352

D76 Q74

Q51

Q52

D55

Q53

D54

∗D81

D73

D77

BR24L04FV-W

2SD1858

2SB1565(E,F)

DTA114YUA or

2SC4081

UMC2N

S-80836CNNB-G:IC8

Q71,74

Q51-53,155

Q72

Q73

Q151

IC10

IC11

IC15

E-TDA7516

BA00CCWT

IC4

IC3

IC6

IC7

IC1 BD4912-V4

TC7W02FU-F

E-TDA7479AD

∗

:∗

Q72

D71

Q73

Q71

D52

D261

D53

SERGE

DET

ACC

D255

D253

D251

D257

MUTE

LINE

∗D72

BU DET

D305

D304

D302

D306

D303

D301

D57

GND LINE

SIGNAL LINE

B LINE

(X34- )

∗D74

D75

∗ B∗ B

∗ D∗ E

POWER IC

Lch

PRE

MUTE

Rch

MUTE

PRE

Q351,352

MUTE DRIVER

IC3

CONTROL

SERVO +B

CONTROL

SERVO +B

AVR

POWER

SUPPLY

IC4

STBY

PRF21BE471QB2TH1 :

∗

R256

R336

30K30K

C331

10u16 R331

270

TP338

TP340

TP339

MUTE

GND

VDD

432

R339

100

R335

∗

C333

∗

C334

R305 4.7K

TP306

TP305

TP304

TP301

10u16

C332 R332

270

R304 4.7K

R303 100

TP303

TP302

R338

100

TP307

Lch

R309 4.7K

R307 4.7K

C303

47u10 4.7

R308 4.7K

C302

0.47

CON

REQ M

GND

B.U.

Rch

A GND

0.47

R310 100

C301 10

R311 100

DATA S

RST

DATA M

CLK

REQ S

MUTE

102

TP308

TP310

TP309

TP312

TP311

∗

W252

TP313

∗

W251

C3 0.22u50

R252

47K

10K

R273

470K

R272

R271

100

C256

1u50

∗

C255

∗

R251

C258 1u50

C4 0.22u50

C6 0.22u50

C5 0.22u50

∗

R255

12 11

OFFDET

OUT1+

OUT2+

OUT2-

OUT1-

FR-

FL-

FL+

FR+ 6

TAB1

PWGND1

PWGND2

STBY

VCC1

OUT4+

OUT3-

OUT4-

SGND

OUT3+

RL+

RL-

RR+

IN3

IN1

RR-

26 HSD

SVR

IN2

IN4

VCC2

PWGND3

ACGND

TAB2

PWGND4

MUTE

R138

4.7

R140

4.7

R141

2.2 R139

4.7 R136

4.7

R137

4.7 R135

4.7

R133

4.7

R131

4.7

R130

4.7

∗

R81

10K

C82 0.022

R76 10K

R75 10K

R78 10K

R77 10K

TP26

TP25

TP30

TP27

TP31

TP28

7uH

TP420

R53

100K

0.01

R57 22K

R55

10K R54

20K

C55

R60

10K

0.01

∗

C81

0.01

∗

R82

R61

22K

∗

R83

R73 4.7K

∗

R72 4.7K

VDD

C79 22u10

C78 100u25

C80 100u25

C74 0.1

C76 0.1

C75 0.1

C77 0.1

22uH

R87 1

R86 1

R85 1

R88 1

SEL2

SEL1

VCC2

47u16

TP73

TP72

∗

C73

0.1

∗

R89

C72

0.1

C52

1000P

R90

W420

GND

TP74 AM

AUDIO

SW5V

VCC1

P.CON

P.ANT

ILM

TP71 1

C69 0.47

C71

R21

1.5K

TH1

R253

4.3K

R254 10 TP316

∗

R257

R52

39K

∗

W368

C257

1u50

R51

68K C54

R58 3.3K

1/2W

R59

33K

TP315

PHONE

FRONT L+

FRONT L-

FRONT R-

FRONT R+

REAR R+

REAR L+

REAR L-

REAR R-

P-CON

RL-

FR-

RL+

FL+

FL-

FR+

RR+

RR-

11910

8671412 13

P-ANT

534

L51

140uH

FUSE

F1 10A (F52-0006-05)

15 16

GND

ACC

B.U.

C51 TP10

TP16

TP9

10K

R56

1000P

C53

∗

W346

R301

R302

R306

SW5V

+5V

+8V

SERVO+B

FL+B

+5V

680P 680P

TP344

TP343

TP342

TP341

3300u16

TP15

TP12

TP13

TP14

TP6

TP7

TP8

TP11

TP2

TP3

TP4

TP5

TP1

P-ANT

P-CON

PHONE

ACC

P-ANT

P-CON

PHONE

+5V

SW5V

+5V

∗

W51

ACC

Q351

Q352

Q74

KDC-3031A/3031AY/3031G/3031GY/309A/309G/F331A/F331G (1/2)

UMC2N DAN202U DA204U

DTA114YUA

DTA124EUA

DTC124EUA

TEL 13942296513 QQ 376315150 892498299

KDC-3031A/3031AY/3031G/3031GY

KDC-309A/309G/F331A/F331G

X34-3412-7x (4/4)

TSRQP

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.

MODEL NAME

DESTI-

NATION

MODEL NAME

DESTI-

NATION

DESTI-

NATION

X34-340x-xx X34-341x-xx X34-365x-xx A B C D E C73 C152 C255 C333,

334

CATEGORY/

FUNCTION

CD RECEIVER

(MP3/WMA)

14-SEGMENT

DISPLAY

CD RECEIVER

14-SEGMENT

DISPLAY

CD RECEIVER

MD RECEIVER

7-SEGMENT

DISPLAY

CATEGORY/

FUNCTION

CD RECEIVER

(MP3/WMA)

14-SEGMENT

DISPLAY

CD RECEIVER

14-SEGMENT

DISPLAY

CD RECEIVER

MD RECEIVER

7-SEGMENT

DISPLAY

CATEGORY/

FUNCTION

CD RECEIVER

(MP3/WMA)

14-SEGMENT

DISPLAY

CD RECEIVER

14-SEGMENT

DISPLAY

CD RECEIVER

MD RECEIVER

7-SEGMENT

DISPLAY

C526 C604 C605,

606 CN3 D72,

74 D162 D260 Q151 IC1

E303/S J 0-01 - YES YES YES YES YES - 33u - YES 68P 6P - YES YES YES YES 784225GC256A

KDC-MP2028 K 0-10 - YES YES YES YES YES - 33u - - 47P 1P - YES YES YES YES 784225GC256A

KDC-MP228 K 0-11 - YES YES YES YES YES - 33u - - 47P 1P - YES YES YES YES 784225GC256A

KDC-MP3029 M 0-22 - - YES YES - YES - 10u - - 47P 1P - YES YES - YES 784225GC256A

KDC-MP4029/G M 0-21 - YES YES YES YES YES - 33u - - 47P 1P - YES YES YES YES 784225GC256A

KDC-W4031/Y E

KDC-W409/Y E

KDC-W431GY E 2-73 - - YES YES - - - 10u YES - 47P 1P - YES - - YES 784225GC256A

KDC-W4531/Y E 2-71 YES YES YES YES YES - - 33u YES - 47P 1P YES YES YES YES YES 784225GC256A

KDC-WF431A E 2-74 YES - YES YES - - - 10u YES - 47P 1P YES YES YES - YES 784225GC256A

KDC-228 K 0-10

--YES YES YES YES - 10u - - 47P 1P - YES YES - YES 784225GC257A

KDC-2029 M 0-22

--YES YES YES YES - 10u - - 47P 1P - YES YES - YES 784225GC257A

KDC-3029 M 0-23 - - YES YES YES YES - 10u - - 47P 1P - YES YES - YES 784225GC257A

KDC-3029R M 0-21 YES - YES YES YES - - 10u YES - 47P 1P - YES YES - YES 784225GC257A

KDC-3031A/Y E 2-71 YES - YES YES - - - 10u YES - 47P 1P YES YES YES - YES 784225GC257A

KDC-3031G/Y E 2-72 YES - YES YES - - - 10u YES - 47P 1P YES YES YES - YES 784225GC257A

KDC-309A E 2-71 YES - YES YES - - - 10u YES - 47P 1P YES YES YES - YES 784225GC257A

KDC-309G E 2-72 YES - YES YES - - - 10u YES - 47P 1P YES YES YES - YES 784225GC257A

KDC-F331A E 2-73 YES - YES YES - - - 10u YES - 47P 1P YES YES YES - YES 784225GC257A

KDC-F331G E 2-74 YES - YES YES - - - 10u YES - 47P 1P YES YES YES - YES 784225GC257A

E202 J 0-00 - - YES - - YES - 10u - YES 68P 6P - - - - YES 784225GC258A

RDT-101 J 0-01 - - YES - - YES - 10u - YES 68P 6P - - - - YES 784225GC258A

KDC-1028 K 0-11 - - YES YES - YES - 10u - - 47P 1P - YES YES - YES 784225GC258A

KDC-128/CR K 0-12 - - YES YES - YES - 10u - - 47P 1P - YES YES - YES 784225GC258A

KDC-129/S M 0-25 - - YES YES - YES - 10u - - 47P 1P - YES - - YES 784225GC258A

KDC-229 M 0-24 - - YES YES - YES - 10u - - 47P 1P - YES - - YES 784225GC258A

KDC-2031SA/Y E 2-75 - - YES YES - - - 10u YES - 47P 1P - YES - - YES 784225GC258A

KDC-2031SG/Y E 2-76 - - YES YES - - - 10u YES - 47P 1P - YES - - YES 784225GC258A

E303MD J 0-02 - - - - YES YES YES 10u - YES 68P 6P - - - - - 784225GC259A

784225GC256A47P YES1P YES-

C81

YES

D81

YES

R81

YES

- YES YESYES2-72

0-01

0-10

0-11

0-22

0-21

2-73

2-71

2-74 0-10

0-22

0-23

0-21

2-71

2-72

2-71

2-72

2-73

2-74 0-00

0-01

0-11

0-12 0-25

0-24

2-75

2-76

0-02

2-72

0-01

0-10

0-11

0-22

0-21

2-73

2-71

2-74 0-10

0-22

0-23

0-21

2-71

2-72

2-71

2-72

2-73

2-74 0-00

0-01

0-11

0-12 0-25

0-24

2-75

2-76

0-02

2-72

YES YESYES YES - - 33u YES

X34-340x-xx X34-341x-xx X34-365x-xx IC4 R72 R82 R83 R89 R162 R172 R251 R255 R256 R257 R312,

313,480 R357,

364 R366 R372 R411 R412 R413 R414

E303/S J E-TDA7560A YES 47K 100K YES YES - 33K 220 22K 30K YES YES 4.7K - - YES - YES

KDC-MP2028 K E-TDA7560A YES 22K 47K YES YES YES 33K 220 22K 30K YES - 4.7K - YES - YES -

KDC-MP228 K E-TDA7560A YES 22K 47K YES YES YES 33K 220 22K 30K YES - 4.7K - YES - YES -

KDC-MP3029 M TB2904HQ YES 22K 47K YES YES - 150K 330 150K 12K - - 4.7K - YES - YES -

KDC-MP4029/G M E-TDA7560A YES 22K 47K YES YES - 33K 220 22K 30K YES - 4.7K - YES - - YES

KDC-W4031/Y E

KDC-W409/Y E

KDC-W431GY E TB2904HQ YES 22K 47K - - - 150K 330 150K 12K - - 4.7K - YES - - YES

KDC-W4531/Y E E-TDA7560A YES 22K 47K - YES YES 33K 220 22K 30K YES - 4.7K - - YES YES -

KDC-WF431A E TB2904HQ YES 22K 47K - YES YES 150K 330 150K 12K - - 4.7K - - YES - YES

KDC-228 K TB2903HQ YES 22K 47K YES YES YES 150K 330 150K 12K YES - 4.7K - YES - YES -

KDC-2029 M TB2903HQ YES 22K 47K YES YES - 150K 330 150K 12K YES - 4.7K - YES - - YES

KDC-3029 M TB2903HQ YES 22K 47K YES YES - 150K 330 150K 12K YES - 4.7K - - YES - YES

KDC-3029R M TB2903HQ YES 22K 47K - YES - 150K 330 150K 12K YES - 4.7K - YES - - YES

KDC-3031A/Y E TB2904HQ YES 22K 47K - YES YES 150K 330 150K 12K - - 4.7K - - YES YES -

KDC-3031G/Y E TB2904HQ YES 22K 47K - YES YES 150K 330 150K 12K - - 4.7K - - YES YES -

KDC-309A E TB2904HQ YES 22K 47K - YES YES 150K 330 150K 12K - - 4.7K - - YES YES -

KDC-309G E TB2904HQ YES 22K 47K - YES YES 150K 330 150K 12K - - 4.7K - - YES YES -

KDC-F331A E TB2904HQ YES 22K 47K - YES YES 150K 330 150K 12K - - 4.7K - - YES YES -

KDC-F331G E TB2904HQ YES 22K 47K - YES YES 150K 330 150K 12K - - 4.7K - - YES YES -

E202 J TB2903HQ - 47K - YES - - 150K 330 150K 12K - YES 4.7K - - YES - YES

RDT-101 J TB2904HQ - 47K - YES - - 150K 330 150K 12K - YES 4.7K - - YES - YES

KDC-1028 K TB2903HQ YES 22K 47K YES YES - 150K 330 150K 12K - - 4.7K - YES - YES -

KDC-128/CR K TB2904HQ YES 22K 47K YES YES - 150K 330 150K 12K - - 4.7K - YES - YES -

KDC-129/S M TB2904HQ YES 22K 47K YES - - 150K 330 150K 12K - - 4.7K - YES - - YES

KDC-229 M TB2903HQ YES 22K 47K YES - - 150K 330 150K 12K - - 4.7K - YES - - YES

KDC-2031SA/Y E TB2904HQ YES 22K 47K - - - 150K 330 150K 12K - - 4.7K - - YES YES -

KDC-2031SG/Y E TB2904HQ YES 22K 47K - - - 150K 330 150K 12K - - 4.7K - - YES YES -

E303MD J TB2904HQ - 47K 100K YES - - 150K 330 150K 7.5K YES - 100K YES - YES - YES

YES -30K ---220YES 22K YESE-TDA7560A YES -4.7K22K 47K - YES 33K

MODEL NAME X34-340x-xx X34-341x-xx X34-365x-xx R415 R416 R431,

470 R450-

452 R471 W51 W152 W251,

346,368 W252 WH1

E303/S J YES - - - YES - - - YES -

KDC-MP2028 K YES - - YES YES - - - YES YES

KDC-MP228 K YES - - YES YES - - - YES -

KDC-MP3029 M - YES - - YES - - YES - -

KDC-MP4029/G M YES - - - YES - - - YES -

KDC-W4031/Y E

KDC-W409/Y E

KDC-W431GY E - YES - - YES YES - YES - -

KDC-W4531/Y E YES - YES - - YES - - YES -

KDC-WF431A E - YES YES - - YES - YES - -

KDC-228 K YES - - YES YES - - YES - -

KDC-2029 M - YES - - YES - - YES - -

KDC-3029 M - YES - - YES - - YES - YES

KDC-3029R M YES - YES - - YES - YES - -

KDC-3031A/Y E - YES YES - - YES - YES - -

KDC-3031G/Y E YES - YES - - YES - YES - -

KDC-309A E - YES YES - - YES - YES - -

KDC-309G E YES - YES - - YES - YES - -

KDC-F331A E - YES YES - - YES - YES - -

KDC-F331G E YES - YES - - YES - YES - -

E202 J - YES - - YES - - YES - -

RDT-101 J - YES - - YES - - YES - -

KDC-1028 K - YES - - YES - - YES - YES

KDC-128/CR K - YES - - YES - - YES - -

KDC-129/S M - YES - - YES - - YES - -

KDC-229 M - YES - - YES - - YES - -

KDC-2031SA/Y E - YES - - YES YES - YES - -

KDC-2031SG/Y E YES - - - YES YES - YES - -

E303MD J YES - - - YES - YES YES - -

- YES YES - - - YES -YES -

(X34-3xxx-xx)

TEL 13942296513 QQ 376315150 892498299

KDC-3031A/3031AY/3031G/3031GY

KDC-309A/309G/F331A/F331G

X16-2932-7x (1/2)

UVWXY

Q21

D96

D71

D72

D73

D74

D75

D76

D77

∗

1/2

X34-

REMOTE

SENSOR

PAN

SW5V

VFD DRIVER

IC1

(14-SEGMENT)

IC3

SWITCH UNIT (X16-293x-xx)

ED1

10K

RST

OFF

11.25V

0V 0V

11.25V

5.0V

11.25V

TP32

TP70

KS4

KS3

KS2

KS1

S10

S11

S12

S13

S14

S15

S16

S17

S18

S19

S20

S21

S22

S23

S24

S25

S26

S27

S28

S29

S30

S31

S32

S33

S34

S35

S36

VFL

S52

S51

S50

S49

S48

S47

S46

S45

S44

S43

S42

S41

S40

S39

S38

S37

KS5

KS6

KI1

KI2

KI3

KI4

KI5

VSS

OSCO

OSCI

VDD

BLK

ILL D GND

PAN5V

RTRY CW

LED+B

FL+B

RST

VFD RST

VFD DATAF

VFD CE

VFD CLK

VFD DATAS

REMOTE

RTRY CCW

TDF DET

ESD GND

TP19

TP18

TP17

TP24

TP22

TP23

TP21

TP20

TP28

TP26

TP27

TP25

TP31

TP30

TP29

GND

VCC

R22 100R21 100K

R78 1K

RED

GRN

KI5

KI3

KI4

KI1

KI2

TP41

TP42

TP43

TP44

TP45

220

R70

20K

R75

47P

C15

4.7K

R72

4.7

R74

S43

S51

S52

S49

S50

S46

S47

S48

S45

S44

S42

S41

S38

S39

S37

S32

S33

S35

S36

S27

S28

S29

S30

S31

S22

S23

S24

S25

S26

S17

S18

S19

S20

S21

KS4

KS3

KS2

KS1

S10

S11

S15

S12

S13

S14

S16

TP47

TP46

TP49

TP48

2.2

C21

IC3

100K

∗

R23

FL+B

470

R11

470

R13

220

R14

470

R15

470

R16

470

R17

470

R19

∗

R18

2.2

C10

TP143

P24 TP150

TP149

TP148

TP146

TP145

TP144

TP147 W11

P21

P20

P22

P23

3GA

TP157

TP153

TP152

TP151

TP154

P25

1GB

P26

3GB

P27

P29

P28

TP164

TP163

TP162

TP161

TP160

TP159

P33 61

P31

P30

P32

P35

P34

TP165

R80 33

R82 33

F+

S41

S50

S51

S52

S49

S47

S48

S45

S46

S44

S43

S42

S39

S38

S37

S36

KI4

AUD

EJECT

KS2

KS5

KS3

KS4

DISP

SRC

KEY MATRIX

KS1 KI1

Q or EQ

PANEL

DET

KI3KI2

ATT

KI5

(3GB/1GB/3GA/2G)

ANODE CONNECTION

3GA1GB3GB

col

3a 1a 2a 1a 2a

P10

P11

P12

P13

P14

P15

P16

P17

P18

P19

P20

P21

P22

P23

P24

P25

P26

P27

P28

P29

P30

P31

P32

P33

P34

P35

P36

P37

P38

P39

P40

P41

P42

P43

P44

P45

P46

P47

P48

P49

—

col

S10

col (Downside)

col (Upside)

—

3GA,3GB 2G

NAME 1GA,1GB

TEL 13942296513 QQ 376315150 892498299

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