Kenwood KDC-5027, KDC-5027Y, KDC-508 Schematics

A B C D E

3

R49

KDC-5027/5027Y/508

CD PLAYER UNIT (X32-5390-00)

1

27

20K

R82

20K

R86

R84

3.10V

0-4.9V

3.10V

C74

3.84V

7.80V

R88

R

A+8V

S2

12EJE SW

S1

LOS SW

CP1 100x2

∗

S4

8EJE SW

CP2 100x4

L

R 5 4

68P

330

2

3

4

CN2

0V

D.OUT 22

4.90V

21

12EJE SW

CLK 19

DATA

NC 16 BU+5V 15 D.GND

MRST

A.+8V

Lch

A.GND

Rch

LO/EJ

S.7.5V

S.GND 2

4.90V

20

18

4.90V

17

4.90V 0V

14

4.90V

13

4.90V

12

4.90V

11

4.90V

10

7.80V

9

3.84V

8

0V

7

3.84V

6

0V

5

0V

4

7.80V

3

0V

4.90V

LOS SW

5

CN2

8EJE SW

MUTE R MUTE L

MSTOP

MOTOR

LOE/LIM SW 1

to (X34-)

6

2200P

C62

0.1

R90

3.3K

66 68

5 6

7 8

IC4

C78

R92

5.6K

C72

470P

VCC

0.1

A+5V

61 62 63 65

L.P.F.

C77

0.1

R91

5.6K

GND

R89

C75C76

2200P

3.3K

R72

10K

A.GND

LchRch

4

3.10V

3

3.10V

2

1

3.84V

D2

200

Q4

4.7K

ANALOG +8V SW

C71

470P

0V

R83 R81

C73

R87

20K

68P

330

0.1

C33

29

C101

1000P

C102

1000P

BU+5V

20K

R85

0V

R100 C100

1000P10

R42

4.7K

4.80V

X1

A.GND

L

16.934MHz

4.80V

CP5 100Kx4

10K

R44

0V

C46

D.GND

403839

41

HOT

42

8EJE(SW2)

43

12EJE/SDET(SW3)

44

LOE/LIM(SW4)

45

PCK/NTLOCK/FCLK/STLD

46

EFM/NFLOCK/CLDCK/STCK

47

SENSE/RESY/FLAG/STOUT

48

CLVS/VDET/CRC

49

DEMPH/TRCRSO/TEXTCRC

50

DVDD3

51

X1

52

X2

53

DVSS2

54

XSUB1

55

XSUB2

56

TEST1

57

TEST2

58

NC

59

VER/HOR

60

DRV MUTE

0.1

C47

VREFP

SRDATA

3.0pp

5.0pp

61

4.80V

LRCK

4.80V

IFZL

61

363735

BCLK

ICRST

RST

IFZR

6362656466

62

4.90V

63

C34 0.1 C32 0.1

0V

R94

100K

31

333432

NC

ASEL

MSEL1

0V

OCD CLK

0V

CSEL

MSEL0

CD SIGNAL PROCESSOR BULT IN MECHANISM CONTROL MICRO PROCESSOR

DATA

MSTOP

CLK

SBIO

68

67

0V

4.90V

0-4.9V

SBIO

666865

AVSS1

2.40V

4.80V

AVDD2

FE

23

24

2.45V

232422

TE

FE

29

27

4.90V

2.50V

0V

2.50V

0V

28

272526

30

29

OUTL

OUTR

AVDD1

DVSS3

IC2

TX

69

0V

EQCNT

70

C36

R43

P-ON

MCNT

XSEL

71

72

73

0V

0.15V

2.2

1K

LDCNT

CD-RW

LO/EJ

MOTOR

767578

74

77

0V

A/TE

DVDD2

4.80V

22

2.40V

TRCRS

2.40V

TRCRS

2.40V

21

RFENV

1.25V

1.70V 0V

0.87pp

4.80V

0-4.8V

0V

2.40V

R46

RF

2.

FOD

79

27K

79

Q2

DIGITAL +5V SW

Q3

SW

22K

S3

DOWN & LIMIT SWITCH

7

X32-5390-00 (1/2)

16

JIHGF

2.40V

22

KDC-5027/5027Y/508

22

TRCRS

2.40V

21

RFENV

1.25V

1.70V 0V

0.87pp

4.80V

0-4.8V

0V

2.40V

R46

RFENV

2.35V

FOD

79

27K

79

IREF

PLLF2

PLLF

RFSW

ARF

DSLF AVSS2 DVSS1 DVDD1

DSLB

LDON

BDO

OFT

NRFDET

FBAL

TBAL

PWM

SPL TVD

TRD

80

2.40V

39K

R49

80

PC

C48

6800P

C50

6800P

20 19 18

17 16 15 14 13 12

11 10 9 8 7 6 5 4

3 2 1

R39 100K

2.45V 0V

4.80V

CP3

1.8Kx4

R41 47K

C45 0.1 C44 1000P C43 2200P

R40 820

C41

1000P

0.1

C31

R38

220K

CP4

4.7Kx4

2 1

C42

0.047

C40

0.015

9 8 7 6 5 4

R45 10K

R37

GCTL

6.2K

C3

C10

0.033

1

RF AMP

IC1

0V

16

VREF GND

17

VDET B/TE

2.50V

100K

4700P

D3

R53

4.7K

Q6 Q5

0.1

C52

D.GND

NRFDET

0V

VDET

R10

C14

OFT

NRFDET

2.50V

TEBPF

191820

C15

22

R52

4.7K

C12

879

0V

141513

OFTR

2200P

R9

3300P

0V

3.94V

BDO

COFTR

TEOUT

R8

27K

C13

270P

R36

3.9K

C39

23

D.5V

Q5,6

CURRENT AMP

C11

BDO

21

10K

0.01

6800P

4.16V

111210

TEN

22

2.50V

CBDO

FEN

R11 33K

C16

330P

R35 39K

3TOUT

C9

4700P

3.38V

9

FEOUT

23

24

8

CEA

GCTL

24

3.06V

ARF

4

R12

C8

240K

1

1.44V

7

FBAL

25

2.50V

6

C2

2.2

6

CAGC

0.91pp

C17 0.1

R7 3.6K

RF

C7

0.1 3.3K

534

RFIN

TBAL

26

2.50V

R13

910K

5

R6

C5 2P

RFOUT

C18 0.1

C6

R5

2.47V

E28D

27

2.50V

R3 5.6K

R2 5.6K

E

39P

3.3K

RFN

0.95pp

F

29

F

Vref

4.90V

VCC

30

2.69V

R14

3.81V

2

B

100K

0.17V

1

LD

C31A

2.69V

CD

C1

PD

32

2.69V

A

10u6.3

1

R4

IOP-IOP+

10

Q1

+

APC

D1

2

R15

4.7K

R1 91

2.00V

4.80V

2.50V

CD E A B F

15 17 16 14

0V

0.17V

2.69V

2.50V

2.69V

3.84V

3.81V

3.84V

CN1

VCC

21VC

GND

3 4

LD

0V

5

VR

6EPD

C+D

7 8

A9 B

1110F

0V

GND

12

FCS+

13

TRK+

14

TRK-

15

FCS-

16

3

4

S.GND

SLED OUT

/LOAD

19 18

17

SLED IN

16

/EJECT

15 14

SPDL-

12 13

SPDL+

DM2 (X92- )

M

LOADING & SLED MOTOR

S4 X32-5390-00 X32-5390-01

NO YES

DM1 (X92- )

M

SPINDLE MOTOR

KDC-3022, 322, 5023R (1/3) KDC-5024/V/Y/YV (1/3) KDC-507, 5094RY (1/3)

DIGITAL LINE SIGNAL LINE GND LINE

B LINE

IC1 IC2 IC3

Q1 Q2 Q3

Q5 Q6

D1 D2 D3

4ch BTL DRIVER

SPDL

IC3

2.35V

FCS

79

2

TRK SLED

80

R51

R50

3.9K

10K C51

1500P

2.35V

7.80V

29

30

PREVCC

BIAS

1

2

2.35V

R47

2.2K

18K 10K

IN3-

IN2-

C49

1500P

R48 10K

OUT2

3

2.40V

272826

OUT3

INSL+

IN1+

5

4

2.35V

IN1-

C38

0.01

R34R33

R31

1

R32

27K

10K C37

R71

0.01

2.35V

0V

25

INSL-

OUTSL

PREGND

OUT1

6

8

924

7

2.45V

4.90V

5

4

13K

0V

22232119201817

CNT

LDIN

POW GND2

MUTE

POW

GND1

11

10

0V

7.80V

C61

2.2

7.80V

POW VCC2

VCC1

12

3.50V

19

3.60V

VO4-

VO1+

VO1-

13

3.90V

12

13

S.7.5V

18

VO4+

14

3.84V

3.81V

VO3-

VO2-

15

3.84V

3.81V

16

VO3+

VO2+

TRK IN

TRK OUT

FCS UP

FCS DOWN

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.

DPU1 (X93- )

OPTICAL PICKUP

AN22002AA

:

MN6627771KP

:

BA5824FP

:

NJM4580M1IC4: MCH6101

:

2SA1362(Y)

: :

DTC124EUA DTA143XUA:Q4 2SC4081

:

2SA1576A

:

DAN202U

:

MA8051-L

:

DA204U

:

X32-5390-00 (2/2)

5

6

7

17

K L M N O

4

R

2

0V

KDC-5027/5027Y/508

1

2

ELECTRIC UNIT (X34-3092-70)

J4

ANT

C306

0.01

R303

D301

REQ H

100

34

D302

L3

LX-CN

CON

4.7K

R304

46

R315 100K

GND

BU

R305

D303

C304 0.01

MUTE

4.7K

81

R306

C303

D311

J2

A GND

4.7

47u10

6

1

5

6

2

7

3

4

8

Rch

10

R302

+

C302

0.47u50

5

D310

+

R301

C301

9

10

11

12

Lch

10

0.47u50

7

+

13

R307

D309

4.7K

RST

7

D304

CLK

DATA M

R311 100

R310 100

31

D307

33

D308

DATA S

4.7K

R309

32

D306

R312 100K

REQ S

4.7K

R308

20

R313 100K

FRONT

D305

F GND

∗

C

R314 100K

FR

FL

C357

0.01

C356

0.01

3 2

1

CN3

R363

FRONT

1

R361

180

22K

Q355

4.7K

360

R359

MUTE

+

SW

C353

10u16

FL

PRE OUT

REAR

J3

3

2

R362

22K

Q356

180

R364

4.7K

360

R360

+

C354

10u16

FR

R357

R351

C351

180

360

10u16

RL

R355

Q351

+

R356

180

22K

R358

22K

Q352

4.7K

C352

R352

10u16

RR

360

MUTE SW

+

Q354

22K

MUTE SW

3

4

CORD WITH

5

REMO. CONT

WIRED REMO

6

∗

A1

RF GND

FMIN AMIN

OSCGND

N. C

AM+B OSCGND OSCGND

N. C

OSCGND

VT

PLL+B

IFCOUT

SDA

SCL

D-GND VDD5V

N. C

CONNECTOR

∗

CN4

N. C

AUDIO

N. C

S-METER

IF+B

IF GND

∗

R374

1K

1

C119

0.01

2

4.7K

330P

C116 R111

0V

1 2 3 4 5 6 7 8 9 10 11 12

13

14

15

16 17 18 19 20 21 22

23 24

Q101

4.7K

R113 2.2K

53

R112 2.2K

52

C117

2.2U50 +

C115

10u16

C118 680P

FM/AM TUNER

R101

1K

R102

470

R104

470

4.7K

R103

R105

C111 1000P

R106

2.2K

RDS DEMODULATOR

5.0V 0V

1 2

5.0V 0V

3

2.5V

4

2.5V

5

5.0V

+

0.01

C114

6 7

2.5V

8

0V

51

30

29

4.7K

93

IC7

QUAL RDDA

VREF MPX

VDDA

VSSA CIN SCOUT

ELECTRONIC VOLUME & FM MPX DETECTOR

5.0V 0V

RDCL TCON OSCO

OSCI

VDDD VSSD SYNC

MODE

16 15 14

13

4.332MHz

12 11 10 9

R115

2.2K

5.0V 0V 0V 0V

∗

R114

2.2K

X3

C211

47u10

+

C210

0.01

VDD

D202

D157 D152

E2P-ROM

IC10

A0 A1 A2 GND4SDA

CDR

CDGND

679

4.0V

6

5

37

R162 100K

VCC

WP

SCL

CDL

8

7

89

R153 470

RH-

R206

36

8 7

6 5

AFS

1K

C204

35

R154 470

5.0V 0V

0.01

R163 100K

1 2 3

0V

21

GND

CASSR

5

4

4.0V

+

C202

2.2u50

39

R152 470

L10 4.7uH

FL

FR

RL

RR

4.1V

IC2

272826

ACOUTL

ACOUTR

1

C209

VREF

2

4.0V

2.2u50

25

LFOUT

GREF

+

24

LROUT

RFOUT

D201

23

C201

RROUT

3

4.0V

2.2u50

8.2V

22

CASSL

+

D

L9 4.7uH

19

D151

D158

C112

27P

C113

27P

D153 D154 D160 D155 D161 D162

CN1

18

ESD GND

17 151614

N. C

L CE

L CLK

13

12910

L DATAL

L DATAS

R207

5.0V 0V

AM

10

C203

0.022

10K

R201

38

R155 2.2K

11

N. C

FLIP DET

56

57

1K

R208

19

20

SCL

SDA

MPX

11

C205

4.7K

R202

24

R157 470

R185 470K

DSI

VOL B

R210

10K

R209

10K

1K

4.0V

0.47

150P

C206

R184 470K

D203

3.6V 0V

18

LEVEL

12

4.0V

R203

4.7K

0.1

C212

23

R158 470

R164 47K

8

VOL A

Q201

SMUTE

13

4.7V

R159 1K

7

4.7K

17

MPIN

C213 0.1

18

6

EJECT

4.7K

R204

0.3-3.5V

16

QUAL

MUXR

MPOUT

14

4.8V

R161 2.2M

RESET

R205

2.2K

15

MUXL

6

R160 2.2K

5

94

55

22

R165

R166 4.7K

47K

Q152

PANEL 5V SW D163

4

3

2

ILL +B

REMO

PAN 5V

ILL GND

C164

10u16

+

C165

0.01

1

D GND

58

R414

Q151

47K

10K

DSI DRIVER

Q154

C163

0.01

100K

MUTE DRIVE

S1

5.0V

IC6

48

2.2K

R186

PANEL DET. SW

Q153

47K

ILL. CONTR

13

14

VCC

1

2

21

R187

47K

P1

7

X34-3092-70 (1/3)

18