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Sony D-E451 Primary, Service Manual

The Sony D-E451 Primary is a portable CD player that delivers exceptional audio quality on the go. Elevate your music experience with this sleek device. Easily access the comprehensive Operating Instructions manual, available for free download at 88.208.23.73:8080. Enhance your understanding of this product and its features, ensuring maximized performance and enjoyment.

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– 26 –

– 27 –

– 24 –

– 25 –

– 28 –

r

 Waveforms

5

IC301   

!§

(XTLO)

VOLT/DIV :  1 V AC
TIME/DIV : 50 nsec

6

IC801   

@º

(OSC2)

VOLT/DIV :  1 V AC
TIME/DIV : 0.2 

µ

sec

7

IC501   

@£

(RFO)

VOLT/DIV :  0.2 V AC
TIME/DIV : 0.5 msec

PLAY MODE

4

IC502   

&º

(BCLK)

VOLT/DIV :  1 V AC
TIME/DIV : 0.2 

µ

sec

3

IC502   

^•

(LRCK)

VOLT/DIV :  1 V AC
TIME/DIV : 10 

µ

sec

2

IC502   

#§

(FRCK)

VOLT/DIV :  1 V AC
TIME/DIV : 50 

µ

sec

1

IC502   

&ª

(XPCK)

SERVICE MODE
during TRK servo OFF

VOLT/DIV :  1 V AC
TIME/DIV : 0..2 

µ

sec

8

T401   

4

VOLT/DIV :  1 V AC
TIME/DIV : 2 

µ

sec

9

T401   

2

VOLT/DIV :  2 V AC
TIME/DIV : 2 

µ

sec

10

Q402
GATE

VOLT/DIV : 2 V AC
TIME/DIV : 2 

µ

sec

11

Q401
BASE

VOLT/DIV :  2 V AC
TIME/DIV : 2 

µ

sec

12

IC401   

@ª

(VOUT2)

VOLT/DIV :  2 V AC
TIME/DIV : 2 

µ

sec

2.4 Vp-p

4.2 MHz

2.9 Vp-p

136 

µ

sec

2.9 Vp-p

22.7 

µ

sec

2.5 Vp-p

0.47 

µ

sec

2.6 Vp-p

16.9 MHz

3.0 Vp-p

4.19 MHz

0.8–1.2 Vp-p

4.1 Vp-p

5.8 

µ

sec

5.1 Vp-p

5.8 

µ

sec

9.0 Vp-p

5.8 

µ

sec

9 Vp-p

5.8 

µ

sec

5.3 Vp-p

5.8 

µ

sec

r

 IC Block Diagrams

IC401  MPC18A26VMEL

+

–

21

22

23

24

25

26

27

28

29

30

2

3

5

4

6

7

8

9

10

1

11

12

13

14

15

16

17

18

19

20

31

32

33

34

35

36

DC IN DETECT

LOW VCPU

DETECT

VCPU

SAWTOOTH

REGUL ATOR

CHARGE SW

CHARGE

AMP

VG

ERROR AMP

PWM2

PWM1

ERROR

AMP

SET-UP

DC/DC

CONVERTER

PWM4

OSC2

SYSTEM

CONTROL

SUB

REFERENCE

BANDGAP

REFERENCE

VG

VG

VG

VG

RS

DCDT

RF2

INM2

INP2

DTC3

RF1

INM1

INP1

CMP1

DTC1

VREF

SWEN

RSTB

CKOUT

SYNC

PCON

CHGON

INM3

RF3

DCIN

CHGSW

BATM

CHGOUT

VIN

VOUT2

NC

VOUT1B

VOUT1

UPCK1B

UPCK1

VG

VDO

SW

VCPU

GND

IC301  TC9438FNEL

21

22

23

24

2

3

5

4

6

7

8

9

10

1

11

12

13

14

15

16

17

18

19

20

DATA

INTERFASE

CIRCUIT

MICRO COMPUTER

INTERFASE

CIRCUIT

OSC

TIMING

GENERATOR

TEST

CIRCUIT

OUTPUT
CIRCUIT

OUTPUT
CIRCUIT

ANALOG

FILTER

ANALOG

FILTER

DINAMIC

BASS BOOST

CIRCUIT

DIGITAL FILTER CIRCUIT

DEEMPHASIS FILTER CIRCUIT

ATTENUATER OPERATIONAL CIRCUIT

Σ

-

∆

 MODULATION CIRCUIT

LRCK

BCLK

D

ATA

DBB

S

D

ATA

SHCK

DACL

T

XVDD

XTLO

XTLI

XGND

CKO

DVDD

TEST

SPLS

A

VDD

RO

AGND

VREF

AGND

LO

A

VDD

µ

UTE-0

DGND

IC501  BA6386K

21

22

23

24

25

26

27

28

29

30

2

3

5

4

6

7

8

9

10

1

11

12

13

14

15

16

17

18

19

20

31

32

DET BLOCK

HOLD BLOCK

LOOP ON

FOCUS

SWITCH

BAMP

OSC

SCRATCH
CONTROL

FOCUS BIAS

PS PL

BL

BS

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

C

B

EFM

MIRR

DEFECT

FOK

FON

TEO

DFR

FEO

D

A

FBIAS

VC

FE

EI

E

F

GND

CAGC

CAPC

LD

PD

SROCH

RF–

RFO

RFI

VCC

PLH

BLH

RAGC

ASY

IC502  BU9326KS

IC601  SM5902AF

2

3

5

4

6

7

8

9

10

1

11

12

13

14

15

16

17

18

19

20

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

41

42

43

44

45

46

47

48

49

50

71

72

73

74

75

76

77

78

79

80

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

VC

AVDD

DVDD

WINDOW

CLOCK

GEN

SUB

PLL

ECC

AVDD

ASY

EYE

FCO

PCO

TEST1

VC

ADPFI

ADPFO

AGND

RVCO

FOK

FEIN

FCAPA

FON

TEIN

ATS

TZC

TCAPA 

TEST2

FDOUT

TDOUT

COMPC

XPLCK

SENS

DVDD

GFS

N.C

SYSCKI

RESET

DGND

CLK

DOCK

DOUTA

LRCK

DE

C2F

C2CLK

C1F1

C1F2

C2F1

C2F2

C1FX

C2FX

C2F3

C2F4

N.C

N.C

N.C

N.C

N.C

N.C

N.C

N.C

TEST5

GAINUP

CK176

BUSY

RW

DOUT

DIN

MCK

SD IN

SDOUT

CLVOUT

TEST3

TEST4

CLVOPP

CLVOPN

CLVOPO

MUTE1

MUTE2

SCRATCH

MIRROR

DGND

RFCK

WFCK

SUBSYQ

SUBDATA

SUBCK

16k SRAM

SERVO
FILTER

SERVO

CONTROL

CLV

uCOM

INTERFACE

2 3

4 5

6

8

9

7

34

35

36

37

38

39

40

41

42

43

44

15

16

14

21

20

22

INPUT

BUFFER

INPUT

CONTROL 2

COMPRESSION

MODE

THROUGH

MODE

GENERAL

PORT

MICRO

COMPUTER

1/F

INPUT

1/F

OUTPUT

1/F

33 32 31 30 29 28 27

26 25 24

23

DIT

1

VDD2

UC1

UC2

UC3

UC4

UC5

NTEST

CLK

VSS

YSRDATA

NWE

D1

D0

D3

D2

NCAS

A10/NCAS2

YMCLK

YMDATA

YMLD

YDMUTE

VDD1

ZSENSE

NRESET

ZSRDATA

ZLRCK

ZSCK  

18

19

17

INPUT

CONTROL 1

YBLKCK

YFCLK

YFLAG

YSCK

YLRCK

NRAS

A9

A8

A7

A6

A5

A4

A0

A1

A2

A3

DRAM 1/F

DECODER

ATTENUATOR

ENCODER

10 11

13

12

IC701  MPC17A51VMEL

LOW  VOLTAGE

DETECTOR

CHAGE
PUMP

SAW
GEN

ERR 1

C2H

C1H

C1L

C2L

VCG

VIN34

VIN34

OUT 3 A

PGND3

OUT 3 B

OUT 4 B

PGND4

OUT 4 A

VIN34

CF4

CLV

TED

CF3

AGND

C11

VR

OE
SAWTOOTH

PSB

OUT 1 A
OUT 1 B

ERR 2
OUT 2 B

VR

VR

OE

OE

SAWTOOTH

SAWTOOTH

PSB

PSB

VR

OE
SAWTOOTH
PSB

OUT 2 A

OUT 4 B

C14

ERR 4

OUT 4 A

OUT 3 A

OUT 3 B

ER R3

C 13

C 12

MOTOR DRIVER

CH 1

MOTOR DRIVER

CH 2

MOTOR DRIVER

CH 3

MOTOR DRIVER

CH 4

VLG

VG

VLG

VG

VCG

VIN12

VLG

VG

VIN12

VLG

VG

VIN34

VLG

VG

VIN34

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

20

19

VG

DGND

CLK

OE

VCC

VIN12

VIN12

OUT 1 A

PGND1

OUT 1 B

OUT 2 B

PGND2

OUT 2 A

VIN12

CF2

SLD

FED

CF1

VC

Summary of Contents for D-E451 Primary

Page 1: ...model you purchased check the upper left side of the bar code on the package Sony BP DM10 Rechargeable battery 2 4 V DC Ni Cd 650 mAh Sony BP DM20 Rechargeable battery 2 4 V DC Ni MH 1 200 mAh Two LR6 size AA batteries 3 V DC AC power adaptor DC IN 4 5 V jack US model 120 V 60 Hz Sony DCC E245 car battery cord for use on car battery 4 5V DC Dimensions w h d without projecting parts and controls Ap...

Page 2: ... LIST ARE CRITICAL TO SAFE OPERATION REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C during repairing Do not touch the soldering iron on the same conductor of the circuit board within 3 times Be careful not to apply force on the con...

Page 3: ...f the optical pick up 3 Connect a level meter as shown in Fig 1 2 4 Press the key Fig 1 1 Method to push S801 A C 2 2 1 1 3 9 7 year version month A less than 48 mA current value date line No shift No 5 Calculate the current value by the reading of the digital voltmeter Reading of the tester V 4 7 Ω current value A Example Reading of the digital voltmeter of 0 2256 V 0 2256 V 4 7 Ω 0 048 A 48 mA 6...

Page 4: ...k AVLS switch VOLUME control SOUND button FR button Information display panel REPEAT ENTER button HOLD switch 1 234 5 7 8 9 0 6 p HOLD VOL volume Remote control Earphones AMS search play AMS search p stop Automatic Music Sensor When you are not using the remote control slide HOLD in the direction of the arrowtopreventanyaccidentaloperation To unlock slide HOLD back Note Useonl ythesuppliedremoteco...

Page 5: ...er ASSY Cabinet Lower sub ASSY MD ASSY Set Main board LED sub board E456CK E459CK Turn table motor ASSY Spindle M902 Optical pick up DAX 11E Sled motor ASSY M901 Lid ASSY Upper 2 1 OPEN 1 Screws 1 4x2 5 1 Screw 1 4x2 5 º CN501 4 Claw 4 Claw Claw 8 CN702 7 CN701 9 CN703 6 5 3 MD ASSY Cabinet Upper ASSY Cabinet Lower sub ASSY 2 OPEN r The equipment can be removed using the following procedure ...

Page 6: ... install position the knob and the switch respectively Sometime the HOLD switch S804 and RESUME switch S803 will be broken º 4 5 7 8 2 1 Screws B1 7 9 Screws P1 4x2 5 3 Screw B1 7x6 6 Screw Screw ASSY Feed Spring sled Optical pick up DAX 11E Turn table motor ASSY Spindle M902 Chassis Sled motor ASSY M901 Rack 3 4 TURN TABLE MOTOR ASSY SPINDLE M902 OPTICAL PICK UP DAX 11E SLED MOTOR ASSY M901 ...

Page 7: ...y the optical pick up movable inwardly or outwardly However if this is activated tracking servo and sled servo are turned OFF so it can be turned ON by pressing the PLAY MODE key if required 3 By pressing the REPEAT ENTER key the tracking gain up mode becomes active 4 By pressing the key focus is turned ON from focus search ing while entering CLV S pull in mode Without disc focus searching is repe...

Page 8: ...iven 3 Use the disc YEDS 18 Part No 3 702 101 01 unless other wise indicated 4 Power supply voltage requirement DC 4 5 V HOLD switch OFF VOLUME Minimum SOUND switch NORM AVLS switch OFF Before Beginning Adjustment Set the equipment to service mode See page 7 and check the fol lowing If there in an error repair the equipment Checking of the sled motor 1 Open the upper panel 2 Press the and keys and...

Page 9: ...ing 100 track jump Brake application is smooth because of adjustment Fig 5 3 Waveform when no traverse waveform during 100 track jump Brake application is poor because of adjustment Fig 5 4 0V 0V 0V 100 track jump waveform 0V 100 track jump waveform traverse waveform Focus Tracking Gain Adjustment A servo analyzer is necessary in order to perform this adjustment exactly However this gain has a mar...

Page 10: ... 10 Adjustment Location MAIN BOARD Side A CN501 RV503 Focus Gain Adjustment RV502 Tracking Gain Adjustment ...

Page 11: ...output 25 XLT ESP O Latch signal output to ESP control IC601 26 HOLD SW I Hold switch input termianl L HOLD ON H HOLD OFF 27 XLMT MD I Limit switch input terminal L Inside Track 28 XRSM SW I RESUME switch input terminal L ON H OFF 29 WP XDC DT PWR I DC in voltage detection terminal 30 WP XOPEN SW I Door open switch input terminal L Close H Open 31 WP XPLAY SW I Play pause key input terminal 32 WP ...

Page 12: ...t terminal for main unit key 54 AD WRMT I A D input terminal for remote control key 55 AD HI DC I A D input terminal for DC IN voltage detection 56 AD BAT I Rechargeable battery dry cell detection input 57 AD CHGMNT I A D input terminal for charging voltage monitor 58 AD VCC I A D input terminal for VCC voltage monitor 59 AD DSP OFFSET I A D input terminal for DSP off set monitor 60 FP10 Not used ...

Page 13: ... 13 15 14 6 2 BLOCK DIAGRAM D E451 E455 E456CK E459CK Signal path J CD ...

Page 14: ...809 C421 C402 C403 C312 C101 C201 C561 C529 C304 C307 C308 C305 C315 T803 TP416 TP881 TP417 TP311 T704 IC401 TP520 TP862 TP860 T802 TEST NORMAL MODE OPEN TEST MODE SHORT TP546 TP418 TP401 IC302 IS310 IS313 TP857 TP301 FB301 Q302 T301 TP332 TP303 TP331 TP858 T403 TP415 TP419 T402 T701 C425 R507 R506 R508 R513 C550 R563 R535 C538 C518 C521 JW501 JW502 FB501 C102 R107 C313 C314 C316 C317 C204 C104 C3...

Page 15: ...cal for safety Replace only with part number specified U B Line H adjustment for repair Power voltage is dc 4 5V and fed with regulated dc power supply from external power voltage jack J401 Voltages and waveforms are dc with respect to ground under no signal conditions Voltages and current are taken with a VOM Input imped ance 10 MΩ Voltage variations may be noted due to normal produc tion toleran...

Page 16: ...BLOCK LOOP ON FOCUS SWITCH BAMP OSC SCRATCH CONTROL FOCUS BIAS PS PL BL BS C B EFM MIRR DEFECT FOK FON TEO DFR FEO D A FBIAS VC FE EI E F GND CAGC CAPC LD PD SROCH RF RFO RFI VCC PLH BLH RAGC ASY IC502 BU9326KS IC601 SM5902AF 2 3 5 4 6 7 8 9 10 1 11 12 13 14 15 16 17 18 19 20 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 41 42 43 44 45 46 47 48 49 50 71 72 73 74 75 76 77 78 79 80 40 ...

Page 17: ...1 41 CABINET UPPER SILVER 4 4 994 981 01 SPRING TORSION 5 X 4952 003 1 LID ASSY UPPER BLUE E451 5 X 4952 004 1 LID ASSY UPPER SILVER E451 5 X 4952 016 1 LID ASSY UPPER SILVER E455 5 X 4952 017 1 LID ASSY UPPER SILVER E459CK 5 X 4952 018 1 LID ASSY UPPER SILVER E456CK 6 4 213 876 01 HOLDER LCD E451 E455 6 4 222 877 01 HOLDER LCD E456CK E459CK 7 4 978 695 01 PLATE TERMINAL BATTERY 8 4 990 219 01 INS...

Page 18: ... 11 PC BOARD SLIDE FLEXIBLE 59 X 4950 476 1 OPTICAL PICK UP DAX 11E 60 4 972 165 01 RACK 61 4 973 631 01 SCREW 62 7 627 850 17 SCREW PRECISION P 1 4X2 5 M901 A 3303 403 A MOTOR ASSY SLED INCLUDING GEAR M902 A 3303 971 A MOTOR ASSY TURNTABLE SPINDLE S901 1 571 099 21 SWITCH 1 KEY LIMIT 7 2 OPTICAL PICK UP SECTION CDM 2811EAA M901 S901 M902 51 52 62 53 54 55 56 57 58 59 60 61 The components identifi...

Page 19: ...1 RES CHIP 0 5 1 16W R926 1 216 833 91 RES CHIP 10K 5 1 16W R928 1 216 845 11 RES CHIP 100K 5 1 16W R929 1 216 049 91 RES CHIP 1K 5 1 10W A 3323 270 A MAIN BOARD COMPLETE E451 A 3323 281 A MAIN BOARD COMPLETE E455 A 3323 282 A MAIN BOARD COMPLETE E456CK E459CK 4 213 876 01 HOLDER LCD E451 E455 4 222 877 01 HOLDER LCD E456CK E459CK 4 978 695 01 PLATE TERMINAL BATTERY CAPACITOR C101 1 126 794 11 ELE...

Page 20: ...16V C571 1 104 852 11 TANTAL CHIP 22uF 20 6 3V C572 1 164 360 11 CERAMIC CHIP 0 1uF 16V C575 1 113 619 11 CERAMIC CHIP 0 47uF 10V C587 1 162 959 11 CERAMIC CHIP 330PF 5 50V C588 1 162 953 11 CERAMIC CHIP 100PF 5 50V C598 1 162 915 11 CERAMIC CHIP 10PF 0 5PF 50V C599 1 162 915 11 CERAMIC CHIP 10PF 0 5PF 50V C601 1 164 360 11 CERAMIC CHIP 0 1uF 16V C602 1 164 360 11 CERAMIC CHIP 0 1uF 16V C611 1 124...

Page 21: ...8 729 907 39 TRANSISTOR IMD2 Q311 8 729 422 51 TRANSISTOR UN5110 QRS Q401 8 729 044 09 TRANSISTOR 2SD2153T100V Q402 8 729 044 10 TRANSISTOR MMBF0201NLT1 Q404 8 729 921 93 TRANSISTOR 2SB1182F5 QR Q405 8 729 920 85 TRANSISTOR 2SD1664 QR Q501 8 729 216 22 TRANSISTOR 2SA1162 G Q506 8 729 029 06 TRANSISTOR DTC124EUA T106 Q507 8 729 028 74 TRANSISTOR DTA114TUA T106 Q508 8 729 028 74 TRANSISTOR DTA114TUA...

Page 22: ... 1 216 864 11 RES CHIP 0 5 1 16W R702 1 216 825 11 RES CHIP 2 2K 5 1 16W R802 1 216 833 91 RES CHIP 10K 5 1 16W R803 1 216 821 11 RES CHIP 1K 5 1 16W R804 1 216 853 11 RES CHIP 470K 5 1 16W R805 1 216 861 11 RES CHIP 2 2M 5 1 16W R806 1 216 821 11 RES CHIP 1K 5 1 16W R807 1 216 821 11 RES CHIP 1K 5 1 16W R808 1 216 851 11 RES CHIP 330K 5 1 16W R810 1 216 857 11 RES CHIP 1M 5 1 16W R811 1 216 857 1...

Page 23: ...BATTERY PACK BP DM10 E455 E459CK 1 532 433 11 FUSE GLASS TUBE 1A E456CK E459CK 1 533 689 11 FUSE GLASS CYLINDRICAL DIA 5 1A E456CK E459CK 1 784 619 11 CORD DCC E2455 M SET E456CK E459CK 1 784 619 11 CORD CAR BATTERY E459CK 3 856 479 21 MANUAL INSTRUCTION ENGLISH E456CK E459CK 3 867 525 11 MANUAL INSTRUCTION ENGLISH 8 953 276 90 HEADPHONE MDR 24SP SET E455 E459CK 8 953 342 93 HEADPHONE MDR 24 1 SET...

Page 24: ... 36 D E451 E455 E456CK E459CK 9 927 136 11 Sony Corporation Personal Audio Company 99F0218 1 Printed in Japan 1999 6 Published by General Engineering Dept ...

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