Kenwood DPC-X537 Service Manual

70%

PORTABLE CD PLAYER

Battery life (Fully charge)

Main Unit

Format

System ..................... Compact disc digital audio system

Laser .............................................. Semiconductor laser

Audio

Frequency response ....... 20 Hz to 20 kHz, –9 ~+0.2 dB

Headphone output level (16Ω) ............ 5.0 mW + 5.0 mW

Line output/impedance .......................... 0.420 V / 10 kΩ

Power supply

DPC-X637 :

Rechargeable batteries (NB-3A70)............. DC 1.2 V x 2

Commercially-available alkaline batteries (LR03)

................................................................. DC 1.5 V x 2

DPC-X537 :

Commercially-available alkaline batteries (LR03)

................................................................. DC 1.5 V x 2

Dimensions (W x H x D) .. 131 mm x 21.7 mm x 132 mm

................................................. (5- 3/16" x 7/8" x 5-3/16")

Weight (net) .................................................165 g (5.8 oz)

Recharger stand (DPC-X637 only)

Power supply

AC adaptor (AC50040)...................................... DC 5.0 V

Separately sold option part

Rechargeable Nickel Metal Hydride Battery ....... NB-3A70

*1 : NB-3A70 *2 : LR03

DPC-X637/DPC-X537

Approx. 15 Hours

Rechargeable batteries *1

Commerciallyavailable alkaline batteries *2

KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice.

Sufficient performance may not be exhibited at

extremely cold locations (Where water freezes).

At 0.1mW+0.1mW output (16Ω load). Standard value during continuous use/charging in an temperature of 20˚C. Time of use may vary depending on battery maker, battery type, use environment, and temperatute.

Approx. 20 Hours

NotesNotes

DPC-X537-D/X537-H/X537-L/X637-H/X937-S

SERVICE MANUAL

Lid ass'y * (A53-)

DC jack (E03-0506-03)

Knob (K29-8301-13)

Knob (K29-8303-03)

DC jack (E03-0507-05)

In compliance with Federal Regulations, following are reproduction of labels on, or inside the product relating to laser product safety.

Miniature phone jack (E11-0971-05)

Miniature phone jack (E11-0960-05)

SPECIFICATIONS

KENWOOD Corp. certifies this equipment conforms to DHHS Regulations No.21 CFR 1040. 10, Chapter 1, subchapter J.

DANGER : Laser radiation when open and interlock defeated. AVOID DIRECT EXPOSURE TO BEAM.

Charger

* Refer to parts list on page 9.

AC adapter (W08-0693-05): E4E9 (W08-0694-05): Y9

Remote controller ass'y (A70-1638-05)

Stereo headphone (W01-1818-05)

Rechargeable battery (W09-1307-05): E4E9 (W09-1308-05): Y9

Battery case (W01-1823-05)

Battery case (W01-1822-05)

Cable clip (W01-1819-08)

The marking

of

products

(For countries

other

than

U.S.A.,

The marking this product has been classified as Class 1. It means that there is no danger of hazardous radiation outside the product. Location: Battery cover

CLASS 1

LASER PRODUCT

CAUTION

INVISIBLE LASER RADIATION WHEN OPEN. DO NOT STARE INTO BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS.

Inside this laser product, a laser diode classified as Class 3A laser radiation is contained as alerted by the internal caution label shown above. Do not stare into beam or view directly with optical instruments.

Location: Inside this product

Cautions

DPC-X537/X637/X937

ACCESSORIES / CAUTIONS

Accessories

Color vs Model

Model Color ABB.

DPC-X537-D ORANGE E3 DPC-X537-H GREY Y1 DPC-X537-H GREY E2 DPC-X537-L BLUE E1 DPC-X637-H GREY E4 DPC-X937-S SILVER Y9 DPC-X937-S SILVER E9

Note :

1. This system uses a microcomputer so it may malfunction due to external noise or interference. In such a case, unplug the power cord and remove the batteries, then re-connect the power cord and insert the batteries again.

2. Erroneous operation may occur when the headphone plug is plugged or unplugged; but this is not a malfunction.

2

ACEG IBDFHJ

R106

R107

C77

R108

R97

C80

C79

R109

L1

W5

C95

R129

C96

C97

C1

C11

R85

C94

C93

C92

C91

R100

R101

C89

C90R99

C83

C84

R79

R81

R80

C85

R77 R78

C3

C28

R27

C35

R30

R130

C32

R29

X2

C30

C31

C27

R25

R47

R48

C48

C47

R46

C103

C46

R45 C45

R44

R40

R39

R43

R51

R52

R49

R50

C50

C49

C53

C38

C37

R32

C39

C40

R28

C29

C105

C34

C62

R62

C71

1

6

C66

R61

W6

C63

C64

C69

C100

R125

C82

R122

R115

C57

C54

C55

R57

R102

R103

R104

C86

R98

R110

C74

X1

C73

C65

R117

RST

SCL

4

5

1

SBD

1056

Lch

Rch

24

R126

VDD

SBT

GND

REM1

1

13

1

8

12

85

41

BATT+

+B

BATT-

TEST

LDT

LCK

VC

GND

VDD

RF

FE

TE

16.93MHz

AGND

KEY1

L3

L2

16.9344MHz

1

16

EB

S7

S6

J2

LINE OUTPHONES

DC IN

EXT BATT

REMOTE

CONTROL

D1

CN1

D5

D4

Q14

Q13

J4

D3

Q10

Q9

D9

J3

CN2

J1

IC10

IC8

IC3

IC5

X32-7540-00 (J75-0005-02) (SIDE-A)

Q15

Q25

Q26

Q4

D6

Q27

D2

Q28

S5

S4

S1

S3

S2

Q21

Q1

Q22

Q2

Q11

Q12

Q5

Q23

Q7

Q8

Q18

Q24

D7

D8

Q19

Q31

Q32

Q29

Q33

Q30

IC7

IC9

IC1

IC2

IC4

IC6

R205

R71

C75 R72

R68

C76 R69

R70

R73

R76

C78

R105

R120

R95

R96

C98

R1

R75

C106

W7

R90

R89

R88

W3

C102

R84

R87

R86

R91

R92

R93

R94

C88

R83

R82

R118

C15 R11

C14

R10 C13 R9

C18

R15

C16

R12

C17

R13

R14

C2

R2

C4

R3

C6

C5

C7

C8

R16

C12

R26

C19

R4

C20

R21

C22

C23

R20

R22

R23

R24

C104

R19

C26

C25

R128

C24

C21

R37

R38

R54

C52

C51

R53

R31

R33

R34

R36

R35

R5

R7

R119

C10

C60

C61

R59

R58

C59

C58

C70

R65

C68

R64

C81

C44

C42

C41

C43

C56

R55

R111

C87

W201

W202

R60

C72

R66

R67

R56

W2

C101

R114 R113

R112

R121

R116

R124

R123

R63

LID-SW

ARF

24

R127

13

12

1

SVCC(2.43V)

Lch

AGND

AVCC(2.78V)

1

F

E

PD1

PD2

Rch

OPT-D

AGND

Rch

REM1

/REM2

LD ATA

13

12

36

OPT-D

60

61

41

40

20

80

1

21

80

60

LSCK

Lch

DGND

SDA

DC-IN

BATT-DET

1

VOL-UP

VOL-DOWN

AMP-CNT

Lch

Rch

A-GND

41

61

1732

161

13

54

24

25

1

48

STOP

PLAY/UP

DOWN

VC

GND

KEY1

PD

FCS+

SL+

SW-G1.5V

L-SW

SPL+

SPL-

SL-

VSUB(2.99V)

VCC

LD+

TRK+

TRK-

20

21

FCS-

FE

TE

TEST

4

8

5

GND

BATT-

GND

EXT-DET

BATT+

40

37

EB

EBEBEB

EB

E

B

EB

X32-7540-00 (J75-0005-02) (SIDE-B)

PC BOARD

1

2

3

4

5

6

7

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

3 4

A BDFHJCEG I

EUROPE E1

DESTINATION

COUNTRYPXABB.

Y1

MODEL NAME

DPC-X537-L

JAPAN J

DPC-X537-H

JAPAN J1

EUROPE E2

DPC-X537-D

JAPAN J2

E3EUROPE

MODEL NAME

DESTINATION

EUROPE

JAPAN

COUNTRY

E4

J3

ABB.

DPC-X637

DPC-X637-H

DPC-X737-S

MODEL NAME

DESTINATION

JAPAN

COUNTRY

J4

J5

ABB.

DPC-X737-L

DPC-X770-L

DPC-X770-N

JAPAN J6

JAPAN J7

DESTINATION

DPC-X937-S

DPC-X937

MODEL NAME

EUROPE

COUNTRY

JAPAN

E9

ABB.

J9

PX

Y9

TP8

TP7

BATT

TP6

TP1

TP4

TP3

TP2

TP5

8

7

6

5

4

3

2

1

Lch IN

NC

AMP CNT

GND

Rch IN

A GND

+B

TP7

TP8

1

2

3

4

IN2

SCTL

BIAS

IN1

8

7

6

5

OUT2

GND

VCC

OUT1

10KR10.1

C1

R9

10K

10KR20.1

C2

R8

10K

560

R10

4.7

C13

R3 47K

C3 82P

100u10

+

C5

100u10

+

C6

R4 47K

C4 82P

R6

1.2K

R12

1.2K

R13

C11

0.1

R14

1.2K

1K

R11

0.01

C10

+3.7V

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

E

VCC

GND

PD2

LD+

GND

VR

MON-OUT

PD1

VC

F

GND

FCS+

TRK-

TRK+

FCS-

1

2

3

4

5

6

SLED+

SLED-

LIMIT-SW

SPINDLE+

SPINDLE-

1

2

345

678

9

10

11

12

131415

16

PD

LD

VCC

EQSW

RFOUT

RFIN

CAGC

ARF

CEA

3TOUT

DCDET

OFTCNT

BDO

OFTR

NRFDET

LDON

3231302928

27

26

25

24232221201918

17

LDR

PDA

PDC

PDB

PDF

PDE

TBAL

FBAL

GCTL

FEOUT

FEN

TEOUT

TEN

VREF

PDOWN

GND

201918171615141312111098765432

1

80

79

78

77

76

75

74

73

72

71

70

69

68

67

66

65

64

63

62

61

41

42

43

44

45

4647484950

51

52

535455

5657585960

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

DVSS2

A3

A2

A1

A0

A9A4A5

A6A7A8

NCAS1

NCAS0

D3

D2

NRAS

NWE

D1

D0

DRVDD

EXT2

DVDD1

DVSS1

X1

X2

NTEST

SBCK

SUBC

NCLDCK

PMCK

SPPOL

NRST

STAT

DMUTE

SMCK

PWMSEL

BLKCK

MLD

MDATA

MCLK

ADPVCC

DSLF

DRF

PLLF

VCOF

AVDD2

AVSS2

OUTL

AVSS1

OUTR

AVDD1

FSEL

TMOD1

TMOD2

FLAG/SRMONI

IPFLAG/CLVS

EXT0

EXT1

IOVDD2

TX

DVDD2

SPOUT

TRVP

TRVM

TRP

TRM

FOP

FOM

IOVDD1

TBAL

FBAL

FE

TE

RFENV

OFT

NRFDET

BDO

LDON

ARF

IREF

2423222120191817161514

13

VSS

DQ3

DQ2

CAS

OE

A9

A8A7A6

A5

A4

VSS

1

2

345

678

9

10

11

12

VCC

DQ0

DQ1WERASNCA10A0A1A2A3

VCC

WE

RAS

A10

A0

A1

A2

A3

CAS

A9

A8A7A6

A5

A4

A10

RAS

WE

A1

A0

A3

A2

A1 A6

4

1

3

2

DQ1

DQ0

VCC

659

8

7

NC

RASWEA0

A10

21

VSS

DQ3

DQ2

242223

A9

OE

CAS

A7

A8

1920161718

12

11

10

VCC

A3

A2

VSS

A4

A5

131415

A6

A9

EX2

A7A8A4

A5

0.1

C35

100u4

∗

C34

+

20

19

18171615141312111098

7654321

80

79

78

77

76

75

74

73

72

71

70

69

68

67

66

65

64

63

62

61

41

42

43

44

45

4647484950

51

52

535455

5657585960

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

REM1

OPT-DET

VREF+

NRST

VDD

SOSCMD

XO

XI

SSTRT

8.4MHz OSC1

OSC2

VSS

LED

OPT-SW

DEST

C1

C2

VLC1

VLC2

VLC3

COM3

COM2

COM1

COM0

SEG0

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG10

SEG11

NC

SDA

BLKCK

PLL-SWNCVDD

TEST

VCNT

AC-DET

OFF

LM-SW

EQSW

OFTCNT

PDOWN

BEEP2

GCTL

OFTR

CHG

AMP-CNT

EXT-DETWPSCL

REM2

KEY1

HP-STB

MON

CHG-D

NC

BEEP1

DSP-RST

MDATA

STAT

MCLK

LDATA

DMUTE

LSCK

MLD

AMUTE

BASS1

BASS2

LID-SW/SBD

HOLD-SW/SBT

54321

V+1

STB-TC

IN1

OUT1

V+2

678

9

10

VREF

STB

IN2

OUT2

GND

1

2

3

4

AOUT

AIN-

AIN+

GND

8

7

6

5

V+

BOUT

BIN-

BIN+

3635343332313029282726

25

24

23

22

21

20

19

18

17

16

15

14

13

1

2

345

6

7

8

9

10

11

12

37

38

39

40

41

42

43

44

45

46

47

48

MON

FO1

RO1

DRGND2

FO2

RO2

VM

RO3

FO3

DRGND2

RO4

FO4

VCNT

PVCC2

REGB

VG

LG

START

VSEN

PVCC1

DSW

PGND1

USW

SVCCF

EMP

RESET

OFF

PREGNDEOEI

SVCC

CRP

AVCC

VSUB IN

VSUB

SSW

FI1

RI1

RI2

FI2

FI3

RI3

FI4

RI4

CLK

SOFT

CT

SPRT

10K

R14

5.1K

R15

5600P

C18

55

100K

R13

0.022

C17

330K

C16

1

R12

W202

W201

54

31

30

32

R11

560P

C15

30K

270P

C13

68K

R9

1K

R10

C14

6800P

33

52

47u4

C3

+

2.2

R2

C4

0.047

50

C5

0.22

R3

10K

383635

37

R4

R5

100K

0.047

C7

C8

5600P

0.012

C6

34

22u4

C12

+

22u4

C10

+

10

R7

47u4

C1

+

R1

10

F-

T+

T-

F+

29

28

25

26

49

28

27

26

25

23

24

70

22

71

390P

1

C60

0.1

C58

C59

48

17

1M

R63

11K

R58

0.01

C61

22K

R59

47u4

C64

+

C63

+

47u4

12K

R62

R61 27K

L1

330uH

F+

F-

T-

T+

292826

25

1

C71

R65

100K

C70

1

330uH

C681R64

33K

56uH

L2

L3

22K

R73

220K

R71

220K

R68

R111

1

C76

100K

R69

R70

150K

R72

C75

1220K

1K

A3

A2

A1

A0

A9A4A5

A6A7A8

A10

CAS

DQ3

DQ2

RAS

WE

DQ1

DQ0

EX2

22

23

24

25

26

27

28

30

31

32

33

34

37

36

35

38

∗

R27

330

+

C28

R26

56

100u4

2.2K

R19

0.01

C20

R21 56K

C22 R22

0.022 100K

0.15

C23

0.068

C24

R23

180

0.47

C25 R24

0.01

C26

2.2K

R25

100

100u4

C27

+

41

35

29

31

R28

330

30

33

11

28

C29 0.1

71

70

C30

9P

C31

R29

47

X2

16.9344

47

R29

9P

C30

C31

9P

16.93MHz

∗

X1

0.1

C32

MHz

C86

11

22P

150

R97

7

100K

∗

R96

100K

∗

R95

C87

1

10K

R110

10K

R98

19

R108

47K

20

4.3K

R99

28

29

30

31

33

35

38

37

36

R102

220K

R103

220K

34

32

27

25

23

10K

R100

R101

6.2K

20

22

1

C89

C90 1

41

42

48

47

C93

0.1

55

54

52

50

49

10

R45

10

R46

0.22

C46

0.22

C45

C54

+

47u4

23

470

R55

47u4

C55+C56

0.33

1

R57

1

C44

1

C43

47u4

C57

+

10

R5

C41C42

18K

R38

18K

R37

1000P 1000P

R44 R43

R39R40

6.2K 6.2K

3.3M 3.3M 10u16

C53

+

C51 0.33

R53 18K R54 12K

C52 0.47

38

37

0.1

C82

C81

0.1

C77

1000P

C101

1000P

C102

220

R114

220

R113

C78

100P

100

R76

100K

R75

0.01

C83

C85R79

330

R80

1.2K

R78

C84

R82

47K

R81

24K

R77

1000P

1

0.01220K

1

R83

1

R84

56

W2

27

R86

R85

1.8K

27

R87

27

R88

27

R112

W3

4.7K

R90

4.7K

R89

25

VOUT

5

VSS

4

VIN

NC

2

1

CE

3

C72

68K

R67

47K

R66

0.1

47u4

C74

C73

+

0.1

100K

R118

R119

10u16

+

C100

10K

R120

100K

R121

+

10K 10u16

220K

1.5K

R117

2.2

R30

47

17

22

20

56K

R20

0.022

C21

42

10

R104

60

SBT

GND

SBD

RST

VDD

17

39

40

17

40

39

C92

0.01

100u4

+

C91

56

1.8K

R94

3K

R93

6.2K

R92

24K

R91

1

2

1

2

R115

150K

5

6

7

8

SDA

SCL

WP

VCC

4

3

2

1

GND

A2

A1

A0

+2.7V

+2.8V

+2.7V

+2.8V

+2.7V

+2.8V

+2.7V +2.7V

+2.7V

+2.8V

+3V

+2.8V

+2.4V

+2.7V

+2.8V

+3V

+2.4V

+3V

+2.8V

+2.4V +2.4V

+2.8V

+2.4V +2.4V

+2.4V

+1.5V +1.5V

+1.5V +1.5V +1.5V

+1.5V

+1.5V+1.5V+1.5V

+1.5V

C19

560P

47u16

+

C69

220u6.3

C66

+

18K

R60

47u10

+

C65

0.01

C88

C94

0.01

3.9K

R5

0.1

C9

100u10

+

C8

R34

100K

10u16

R33

100K

10u16

+

C40

+

C39

3.3K

R35

3.3K

R36

5.1K

R16

47u4

+

C62

A/D PORT

100u4

C11

+

C104

0.1

10

R128

0.01

C105

∗

W5

∗

W6

100K

∗

R130

R126

DQ1

DQ0

DQ2

DQ3

∗

R127

DQ0

DQ1

DQ3

DQ2

C103

0.1

27

∗

W7

1M

R122

1M

R123

R124

150K

TP14

33K

R116

47K

R125

Q18

MODEL NAME

DPC-X660

ABB.

DESTINATION

JAPAN

COUNTRY

J8

IC1

Q32

+5V

+5V +5V

+5V

+5V+5V+5V

+5V +5V

+5V

+5V+5V

+B

+B +B

+B

+B+B

+B

+B +B

+B

(X32-7540-00)

(X32-7540-01)

(X32-7540-02)

(X32-7540-03)

J3

J1

EXT BATT

DC JACK

J2

Q2

D2

D1

Q1 J

CN1

CN2

DRAM DRAM

RF AMP

Q1

Q19

Q18

D8

Q21 Q23 Q24

Q22

Q5

∗

F

D3

D4

S6

LID SW

S7

D5

AMPQ9

Q11

Q12

∗

G

Q25

D2

Q28

∗

C

∗

D

Q31

Q32

Q31

D9

HOLD SW

u-COM

to KSM-1000BBC

D7

Q2

D1

for FLASH u-COM

TP9

TP10

TP11

TP12

TP13

/UP

PLAY

S1

STOP

S2

DOWN

S3

UP

VOL

S4

DOWN

VOL

S5

Q29

Q4

Q26

Q8

Q7

MUTE

∗

E

D3

Q33

Q30

∗

H

DISC

ON/OFF

ERROR

LD CONT

PWR ON/OFF

PWM/RESET

LEVEL SHIFT

BATT/AC ADP SW

Q21 CONT

CONT

Q21

POWER

START

SUPPLY

AC ADP CHECK

QUICK CHARGE

CHARGE OUT

DSP

PLL SW

BEEP

BASS BOOST

(X32-7540-04)

AMP

REG

OVER

CHECK

VOLTAGE

GNDCONT

Q26

OFF

ON/

E2ROM

1.5V REG

EXT-BATT CHECK

CONT for REMO CON POWER SUPPLY

IC1

(X27-1710-00)

IC1

IC2

∗

IC3

∗

IC4

IC9

IC5

IC8

IC6

IC7

(X32-7540-00)

IC10

DPC-X537/X737/X937

DPC-X537/X637/X937

1

2

3

4

5

6

7

5 6

Kenwood DPC-X537 Service Manual

DPC-X637/DPC-X537

SPECIFICATIONS

Cautions

ACCESSORIES / CAUTIONS

Accessories

X32-7540-00 (J75-0005-02) (SIDE-A)

X32-7540-00 (J75-0005-02) (SIDE-B)

PC BOARD

X32-7540-00 (1/2)