Kenwood Kdc-3028 User manual

B53-0246-00 (N)609

CD RECEIVER

SERVICE MANUAL

KDC-3028

KDC-328

SPARE TDF PANEL

MAIN UNIT NAME TDF PARTS No. TDF NAME

KDC-3028 Y33-2150-68 TDF-53DB

KDC-328 Y33-2150-67 TDF-53D

PANEL ASSY

KDC-3028 (A64-3630-12)

MOUNTING HARDWARE ASSY

(J22-0011-03)

LEVER

(D10-4589-04) x2 SCREW SET

(N99-1763-05)

DC CORD

(E30-6415-15)

REMOTE CONTROLLER ASSY (RC-517)

(A70-2069-05)

BATTERY

(Not supplied)

SCREW SET

(N99-1757-05)

* ESCUTCHEON

(B07-xxxx-xx)

PLASTIC CABINET ASSY

(A02-2743-03)

MOUNTING HARDWARE (R)

(J22-0259-04)

MOUNTING HARDWARE (L)

(J22-0258-04)

DISPDISP

C.S.

FFFF

MENUMENU

VOLVOL

AUDAUD

SETSETUPUP

SCRL

AME

AUTO

ATT

SCAN RDM REP M.RDM

KDC-

3028

FFFF

MENUMENU

VOLVOL

AUDAUD

SETSETUPUP

SCRL

AME

AUTO

SCAN RDM REP M.RDM

DISPDISP

C.S.

KDC-

328

ATT

PANEL ASSY

KDC-328 (A64-3486-12)

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

This product uses Lead Free solder.

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KDC-3028/328

BLOCK DIAGRAM

SERVO

A8V

BU5V

AUDIO OUT

AM+B

MPX OUT

MPX IN

AUDIO OUT

BU5V

A8V

BACK

SP OUT

BACK UP

ACC

OEM REMOTE

TEL MUTE

P-ANT

P-CON

PAN5

SERVO

P-ANT

AM+B

A8V

BU5V

P-CON

AM+B

AUDIO+B

VCC

ILLUMI

BU5V

ILLUMI

PAN5V

KEY

CHANGER

CD/MD

FM (E)

FM (J/K)

AM (J/K)

AM (E)

:1800mV

1372mV

600mV

855mV

3600mV

CD5V

800mV

1200mV

BU5V

MECHA

CD or MD

CHANGER

E-VOL

IC10

AM AGC

Q501

FM AGC

L506

ANT J4

TUNER

IC11

E2PROM

u-COM

IC1IC7 RST IC

IC8

PRE MUTE

Q351,352

IC4

POWER IC

MUTE LOGIC

IC6 J1

PAN5V

Q151

Q72,73

SERVO

VFD REG

IC15

POWER SUPPLY IC

IC3

ED1

VFD

with

VFD DRIVER

IC1 REMOTE

IC2

VOL

S1 KEY MATRIX

PANEL DET

S151

.......

J6 PRE OUT

SURGE DET

BU DET

ACC DET

DECODER

RDS

Q152

ILLUMI SW

KEY

EJECT ILLUMI

EJECT

Q53

Q52

Q51

OEM

Q156S152

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-)

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KDC-3028/328

COMPONENTS DESCRIPTION

●ELECTRIC UNIT (X34-3390-1x)

Ref. No. Application / Function Operation / Condition

IC1 SYSTEM µ-COM System control.

IC3 POWER SUPPLY DC5V x 1, 7.8V x 1, 8.0V x 1, 10.2V, P-CON, P-ANT output.

IC4 POWER IC Signal amplifier.

IC6 MUTE LOGIC Mute action control.

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

IC10 E-VOL & TUNER E-vol, tuner, stereo decode.

IC11 E2PROM Save & load for tuner adjustment data.

IC15 LED & VFD+B Output voltage 11.25V for LED and VFD.

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

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

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

Q54 BU5V SW “ON” when the base goes “L”.

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

Q72 SERVO+B AVR Output voltage is 7.5V.

Q73 SERVO+B AVR Output voltage is 7.5V.

Q74 IC3 CONTROL SW “ON” when the base goes “H”.Output voltage is 10.2V.

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

Q152 FL+B SW “ON” when the base goes “L”.

Q153 FL+B SW “ON” when the base goes “H”.

Q156 EJECT ILLUMI SW “ON” when the base goes “H”.

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

Q330 Q351/Q352 MUTE DRIVER “ON” when the base goes “L”.

Q351 Lch PREOUT MUTE SW Audio preout is muted when the base goes “H”.

Q352 Rch PREOUT MUTE SW Audio preout is muted when the base goes “H”.

Q501 AM RF AMPLIFIER Adjusts for 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.

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KDC-3028/328

COMPONENTS DESCRIPTION

Ref. No. Application / Function Operation / Condition

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.

●SWITCH UNIT (X16-2910-11)

Ref. No. Application / Function Operation / Condition

IC1 VFD DRIVER

IC2 REMOTE CONTROL

Q4 SW 5V The power supply of IC2 turns on when Q4’s base goes “L”.

Q10 RED LED SW RED LED turns on when Q10’s base goes “H”.

●DAUGHTER UNIT (X89-2690-10)

Ref. No. Application / Function Operation / Condition

Q221, 222 2-PREOUT MUTE “ON” when the base goes “H”.

Q225 2-PREOUT MUTE “ON” when the base goes “H”.

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KDC-3028/328

MICROCOMPUTER’STERMINAL DESCRIPTION

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

Pin No. Pin Name I/O Application Processing Operation

1DCERR I DC offset detection input

2 LINE MUTE I Phone detection TEL MUTE : Below 1V

3ROTARY CW I Rotary encoder input

4AVSS -

5TUN TYPE1 I E-VOL setting switch Refer to “TUN TYPE” on the TRUTH TABLE

6TUN TYPE2 I E-VOL setting switch Refer to “TUN TYPE” on the TRUTH TABLE

7AVREF1 -

8VFD DATAF I Data input from FVD driver

9 VFD DATAS O Data output to FVD driver

10 VFD CLK O Clock output to FVD driver

11 VFD RST O Reset output to FVD driver Display OFF, Key reset, Panel opened : L

Display ON, Key scan : H

12 VFD CE O Chip enable output to VFD driver

13 ROTARY CCW I Rotary encoder input

14 FLIP DET I Panel detection Panel released : H, Panel ON : L

15 PWIC BEEP O Beep output

16 LX DATA S I Data from slave unit

17 LX DATA M O Data to slave unit

18 LX CLK I/O LX-BUS clock

19 NC -

20 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 input H : Station exists, L :Station does not exist

22 LX RST O Hard reset to slave unit H : Reset, L : Normal condition

23 LX CON O Start-up request to slave unit H : Slave unit ON, L :Slave unit OFF

24 LX REQ M O Communication request to slave unit

25 AUD SDA I/O Tuner + volume I2C data input and output

26 AUD SCL I/O Tuner + volume I2C clock input and output

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

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

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

30 RDS AFSM -

31 RESET2 O Mute for reset Output L

32 NC -

33 VSS1 -

34 NC -

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

36 BU DET I Momentary power-down detection BU exists : L, BU does not exist (Momentary power-down) :H

37 PON I/O SW5V/SW14V control Power ON :L, Power OFF : Hi-Z

38,39 PS2-2, PS2-1 O Power supply control output Refer to “POWER IC CONTROL” on theTRUTH TABLE

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KDC-3028/328

MICROCOMPUTER’STERMINAL DESCRIPTION

Pin No. Pin Name I/O Application Processing Operation

40~42 PS1-1~PS1-3 O Power supply control output Refer to “POWER IC CONTROL” on theTRUTH TABLE

43 KEY CDEJ I Eject key L : Eject

44 PON CD I/O Power supply control for MP3/WMA ON : L, OFF : Hi-Z

45 CD MUTE I CD mute request L : Mute request

46 CD MSTOP O CD mecha µ-com stop H : mecha µ-com operates, L : mecha µ-com is stopped

CD LOE LIM SW

ICD 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 CD DISC8 SW -

51 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

OEM DISP DATA

I/O External display chip data External display

LED ON : H, LED OFF : L

59 EJECT ILLUMI O Eject illumination control LED ON when FLIP-DOWN DET is H and PANEL DET is L.

LED blinks when FLIP-DOWN DET is H and PANEL DET is L.

60 RESET I

61 PANEL DET I Panel detection Panel OFF :L, Panel ON : H

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

Flip-down detection H :L, Flip-down detection L : H

63 KEY REQ I Communication request from VFD driver L : Key input

64 NC -

65 REMOTE I Remote control input

66 LX REQ S I Communication request from slave unit

67 VSS0 -

68 VDD1 -

69,70 X2, X1 -

71 TEST -

72,73 XT2, XT1 -

74 VDD0 -

75 AVDD -

76~78

TYPE 3~TYPE 1

IDestination switch

79 NC -

80 TUN SMETER I Tuner S-meter input

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KDC-3028/328

MICROCOMPUTER’STERMINAL DESCRIPTION

●TRUTHTABLE

TUNTYPE

TYPE 1 TYPE 2

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

Initial value setting

General models commercially-designated as pure KENWOOD brand (CRSC is changed) HL

Multi-Path Band-Path Gain = 12dB, Multi-Path Charge Current = 0.4µA, De-Emphasis = 75µS

POWER SUPPLY IC (IC3) CONTROL

SW1 (Pin No. 10)

PS1-1 PS1-2 PS1-3 AUDIO P-CON P-ANT

LLLOFFOFF OFF

HLLONOFF OFF

HHLONONOFF

HHHONONON

SW2 (Pin No. 11)

PS2-1 PS2-2 ILLUMI FM+B AM+B

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

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KDC-3028/328

MICROCOMPUTER’STERMINAL DESCRIPTION

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

Pin No. Pin Name I/O Application Processing Operation

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 -

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KDC-3028/328

MICROCOMPUTER’STERMINAL DESCRIPTION

Pin No. Pin Name I/O Application Processing Operation

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 MUTE L O Audio Lch mute output.

62 MUTE R O Audio Rch mute output.

63 RST I LSI reset input.

64 OCD CLK -

65 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 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).

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KDC-3028/328

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”.

• CRSC 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.

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KDC-3028/328

SPECIAL MODE

●Security

•

How to enter the forced POWER ON mode

While “– – – –” is being displayed, while simultaneously

pressing “Q” key and “4” key, press “RESET” button, With

this, it is possible to turn the power on for 30 minutes only.

• How to clear the programmable security code

1. While “– – – –”is being displayed, press“ ” for 3 seconds

or more while pressing the“AUTO” key.This makes the “– –

– –” display disappear.

2. Input “KCAR”, using the remote controller.

Press “5” key of the remote controller twice (Input for “K”)

and press “ ” key.

Press “2” key of the remote controller 3 times (Input for “C”)

and press “ ” key.

Press “2” key of the remote controller once (Input for “A”)

and press “ ” key.

Press “7” key of the remote controller twice (Input for “R”)

and press “ ” key.

3. The security is cleared and the unit enters STANDBY source

mode.

4. If wrong codes are input, “– – – –” will be displayed again.

●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 “AUTO” or “TI” key while “DC _ ERR _ _” is

being displayed, 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.

●FM/AM channel space switching

When in the conditions of ACC ON and POWER OFF, while

depressing PRESET “1” key and PRESET “5” key simulta-

neously, press “SRC” key.

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KDC-3028/328

ADJUSTMENT

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

FREQUENCY MODULATION ANTENNA INPUT

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

FREQUENCY MODULATION ANTENNA INPUT

87.9MHz OFF

5dBµV (LOAD) or

11dBµV (EMF)

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KDC-3028/328

EDCBA

C13

C14

C15

DISP

RESET

6542

SRC

68 24

231

VOL

ATT

AUD

C16

C17

VCC

VO G

D25

D26

D10

D11

D12

D13

D14

D15

D16

D17

D18

D19

D20

D21

D22

D23

D24

S1 S2

S10

S27

ED1

IC2

SWITCH UNIT

X16-2910-11 (J76-0040-32)

CP12

CP13 C19

C20

C10

C11

CP10

CP11

R10

R11

R12

R13

R14

R20

R51

R52

R53

R54

R55

R56 R57

R58

R59

R70

R15

R73

R74

R75

60 61

KI5

KS1

KS2 KI1

KI2

SW5V

KS4

ILL D GND

PAN5V

INH

ILL+B

RST

CLK

FL+B

KI3

CNDET

CCW

GND

ESD

REMO

KI4

KS3

115

214

D110

Q10

Q11 D104

D103

D105

D101

D108

D107

D106

D109

IC1

SWITCH UNIT

X16-2910-11 (J76-0040-32)

X16-2910-11

Ref. No. Address

IC1 4D

Q4 4D

Q10 3D

X16-2910-11

Ref. No. Address

IC2 2A

PC BOARD

(COMPONENT SIDEVIEW) (FOIL SIDE VIEW)

Refer to the schematic diagram for the values

of resistors and capacitors.

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KDC-3028/328

FGHIJ

RST

SCL

SDA

TEST

W322

W310

R596

W353

C562

R600

C515

R601

L61

C409

14 2

15 1

C96 C97

C255

C256

C258

C505

C507

C508

C512

C547

C563

C600

CF51

CF52

CF53

CF54

W340

W300

L505

L506

L507

L508

L509

L518

C3 C5

C257

C303

13 11 12 8 4 3 2

9106 7 5 1 127

226

C331

C332

W306

R598

L501

L502

L503

L504

L520

W361

R338

R339

R544

W308

R597

W801

W317

X501

W351

W352

W377

W379

W381

W362

W357

W383

W375

W368/

W335

W373

W312

W367

W318

W302

W304

W305

W307

W309

W314

W311

R81

W382

W349

W321

W346

W319

W371

W251

W372

W426

R313

W370

W328

W339

W365

W833

W836

D301

D302

D303

D304

D305

D306

D203

D259

D260

D166

WH1

S152

WH2

IC4

IC15

ELECTRIC UNIT X34-3390-1x (J76-0075-12)

PC BOARD (COMPONENT SIDEVIEW)

TEL 13942296513 QQ 376315150 892498299

KDC-3028/328

ONMLK

Refer to the schematic diagram for the values

of resistors and capacitors.

BU5V

C20

C409

C51

C71

C72

224

123

C73

C74

C75

C76

C77

C78

C79

C80

C91

C92

C93

C117

W398

R72

R73

C1 C2

916

W403

L51

W425

R21

R58

W388

R59

W408

W376

W402

W419

W423

W424

W418

W405

W406

W416

W385

W390

W377

W379

W381

W387

W383

W393

W391

W413

W414

W409

W415

W417

W404

W421

W422

C119

L101

W395

W411

W410

W407

W412

W397

W396

W373

W394

W420/

W399

R81

W382

W386

W371

372

313

W370

W384

L62

D57

D71

D52

D54

Q72

Q73

D254

D73

CN2

S151

IC3

IC9

X34-3390-1x

Ref. No. Address

IC3 4M

IC4 2J

IC15 6H

Q72 3M

Q73 3M

TEL 13942296513 QQ 376315150 892498299

KDC-3028/328

PQRST

W100

C201

R57

R61

R62

R85

R94

R198

R365

R366

C410

R312

R412

R414

R416

R419

R420

R441

R453

R454

C69

C81

C95

C112

C113

C151

C407

C408

C411

C420

C565

R130

R52

R53

R56

R82

R92

R190

R191

R193

R194

R252

R254

R257

R367

R411

R413

R415

R417

R418

R440

R456

R471

W70

C55

C116

W58

R51

R54

R55

R60

W54

R75

R76 R77

R78

R84

R83

R86 R87

R88

R89 R90

R91 R93

R112

R113

C118

R178

R180

R181

SDA

SCL

ADJ

AFS

R182

R195

R196

R197

R251

R255

R256

R271

R272

R273

R351

R352

R353

R355

R356

R358

OEM-CLK

OEM-CE

OEM-DATA

R359

R360

R368

R369

R370

R371

R431 R432

R433

R437

R438

R439

R450

R451 R452

R457

R470

TH1

W252

W71

W52

W56

W59

W60

R114

W99

W63

W57

W66

W62

W65

W64

W73

R480

W53

W51

R253

R151

W72

W96

W97

W78

W91

W83 W82

R131

R132

R133

R134

R135

R136

R137

R138

R139

R140

R141

C52

R63

R363

C153

C422

W102

W103

L301

BE BE

916

BEE

21 20

100

Q54

D72

D91

D75

D251

D252

D253

D255

D256

D257

D258

Q71

Q51

Q52

Q74

Q91

Q153

Q252

D53

D55

D76

D261

Q53

Q152

D74

D402

D403

D81

IC6

IC1

IC8

IC7

ELECTRIC UNIT X34-3390-1x (J76-0075-12)

PC BOARD (FOIL SIDEVIEW)

TEL 13942296513 QQ 376315150 892498299

KDC-3028/328

YXWVU

Refer to the schematic diagram for the values

of resistors and capacitors.

RG L

C221

C222

W101

R229

R230

R222 R221

R226 R225

CN91

CN90

Q222

Q225

Q221

DAUGHTER UNIT

X89-2690-10

(J76-0057-12)

C551

C579

C556

C585

R606

R185

C333

C334

C503

C506

C509

C510

C511

C513

C516

C517

C518

C519

C520

C521

C522

C527

C531

C543

C545

C548

C620

C553

C554

C559

C561

C568

C582

C583

C584

C580

C586

C587

C588

C589

C590

W820

C601

C604

C605

C606

R608

C623

R607

R97

R335

R336

R504

R506

R565

R605

W807

C301

C302

C502

C504

C514

C524

C525

C541

C542

C544

C549

C550

C564

C581

C603

R523

L521

R96

R98

R152

R153

R156

R157

R158

R159

R160

R161

R162

R163

R164

R172

R183

R184

R186

R196

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

R567

R589

R590

SD S-METR

TUNOUT R591

R592

R603

R594

R602

252

L600

W98

C602

W506

W804

W803

W812

W814

C610

R599

W604

W611 W805

W605

W802

W826

C624

R331

W75

R253

W72

W808

W78

W93

C552

W823

W76

W79

W810 W806

C625

W831

R562

L602

R100

C628

W832

L601

C626

W827

C627

C632

W838

L604/

L605/ W834/

W835/

BE BE

6160

100

Q151

Q156

Q330

D501

D504

D506

Q351

Q352

D162

D502

D503

Q152

Q501

IC10

IC11

X34-3390-1x

Ref. No. Address

IC1 6S

IC6 4S

IC8 6S

IC10 5V

IC11 4U

Q51 3S

Q52 3S

Q53 3R

Q54 4R

Q71 3Q

Ref. No. Address

Q74 5R

Q151 7V

Q152 6T

Q153 6T

Q156 6V

Q252 3T

Q330 3U

Q351 3V

Q352 3W

Q501 4W

X89-2690-10

Ref. No. Address

Q221 3X

Q222 3X

Q225 3Y

TEL 13942296513 QQ 376315150 892498299

KDC-3028/328

ZAA AB AC AD

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 (J76-0059-12)

X32-5750-00

Ref.No. Address

IC2 4AC

IC4 2AC

Q6 5AB

TEL 13942296513 QQ 376315150 892498299

KDC-3028/328

AIAHAGAFAE

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 (J76-0059-12)

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

SPDL

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 5AG

IC3 2AG

Q1 5AH

Q2 4AH

Q3 4AG

Q4 3AF

Q5 5AF

TEL 13942296513 QQ 376315150 892498299

KDC-3028/328

ABCDE

∗D162

D506

D502

D503

D501

Q501

REMOTE

WIRED

KP2311ETR-G:D502,503 KV1430STL-G

HVC383B-E

D504

D506 :

D55,261 S2V60

AM01ZNF

D1F60-5063

UDZS4.7B

MAZ4082N-L

1SS133

RN739F

DAN202U or

MAZ4062-L

MC2848

D76,402,403

D203,259,260

D301-304

D501

D81

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

D73,254

D57

D71

∗

2SA1576A

DTA124EUA

DTC143TUA

UDZS6.8B

IMSA-6801-E

MAZ4068N-M

HN3G01J(BL)-F

1SS355

D52,54,305,306

D53

Q501

Q252

Q330

Q351,352 :

BR24L04FV-W

2SD1858

2SB1565(E,F)

DTA114YUA

2SC4081

UMC2N

S-80836CNNB-J:IC8

Q71,74

Q51-53,91,156

Q72

Q73

Q151

IC10

IC11

IC15

E-TDA7516

BA00CCWT

IC4

IC3

IC6

IC7

IC1 BA4911-V4

TC7W02FU-F

E-TDA7479AD

∗

:∗

D504

∗A

∗WH2

GND LINE

SIGNAL LINE

B LINE

Q222

Q221

Q225

CN91

CN90

(X34- )

DTA124EUAQ225 :

:Q221,222 DTC143TUA(X89- )

(X89-2690-10)

E-VOL

2-PREOUT

MUTE

AM RF AMP

RDS DECODER

ANT.

PRF21BE471QB2TH1 :

X34-

WH1

(E30-6229-05)

SI-8050JF3NFIC9 :

2SA1036KQ54 :

DTC114YUA

2SA1577Q152

Q153 :

D162 : STZ6.2N

D91

D166

SFPB-54VNF

B30-1710-05:

(E30-6403-05)

MPTC

GND

C589

C116

330P

10u16

C117

2.2u50

TP314 FSEL

FILOUT

C118

C119

0.01

OSCINMPX

EXTRES

ARI

GND

OSEL

VCC

OSCOUTVREF

RDDA

QUAL T57

RDCL

4.7uH

L101

C113

10P

C112

10P

R114

R113 2.2K

R112 2.2K

TP501

R544 2.2K

R543

5.6K

C541

270P

L507

C543

C610

C542

15P

C544

TDF DET

ESD GND

TP166

TP164

R193 XTALG

10.2

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

VCCVCO

LPHC

VCOE

GNDVCO

LPOUT

VCOB

WINTC2

VCC3

VREF2

ISSTC1

ISSTC2

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

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

C581

VCCIF1

IF1AMP1OUT

IF1REF

IF1AMP1IN

GNDIF1

IF1AGCIN

FSTC

AMAGC2TC

MIX1OUT2

C519

0.47

C531

R603 56

C514

GNDRF

FMMIX1IN2

WINTC1

FMAGCTC

TV1

FMMIX1IN1

FMPINDR

AMRFAGCOUT

AMPINDR

AMMIX1IN1

AMMIX1IN2

DEVTC

MUTETC

MIX1OUT1

0.47u50

C563

R599

C582

0.022

0.1

100P

C579

AMREFDEMC

IF1AMP2IN

0.068

L508 10.700MHz

CF51 10.700MHz

CF52

R163

R164

C551

R596

6800P

C545

C550

R522

22K

1000P

C527

0.01

C625

L504

R506 1M

C583

C587

2.2K

4.332MHz

C222

C221

10u16

270

R221

10u16

270

R222

R225

TP2

100

R229

R226

30K 30K

TP3 100

R230

TP1

W101

MUTE

GND

2VDD

3TP8

TP6

TP5

TP4

TP7

390K

R565

C554 0.33

0.01

C513

1.2K

R602

KDC-W531Y

KDC-W5031/Y

KDC-MP5029

KDC-328

KDC-3028

MODEL NAME DESTI-

NATION X89-2690-10

DAUGHTER UNIT

YES

KYES

YES

FRONT

AUX R

AUX L

AUX GND

W394

C627

100P

1000P

C632

47P

W373W70

0.01

C511

C584

R598

L604

L605

R523

R606

C628

IC7

ELECTRIC UNIT (X34-339x-xx)DAUGHTER UNIT (X89-2690-10)

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

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 : 4.2

FM : 0.2

8.1V

2.8V

5.0V

X34-3390-1x (1/4), X89-2690-10 (1/1)

TEL 13942296513 QQ 376315150 892498299

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