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Panasonic SL-SX450EB, Service Manual

The Panasonic SL-SX450EB is a high-quality portable CD player that allows you to enjoy your favorite music on the go. Complete with a sleek design and user-friendly interface, this product offers excellent sound performance and durability. For convenient troubleshooting and maintenance, you can easily access the free service manual for the SL-SX450EB on our website, manualshive.com, providing step-by-step instructions and technical information for download.

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10 Schematic Diagram

A

B

C

D

E

F

G

H

12

11

10

9

8

7

6

5

4

3

2

1

LCD801(L5ACAEC00027)

LCD DISPLAY

1

30

3

2

4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

1

30

3

2

4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

R306

47K

N O P M

L K J

I H Q E

G

C302

1

R304

1M

S310

(HOLD)

CN301

F

A

F G H I

J K L M N O P Q R S T U V

A B C D E F G H

OPERATION & LCD UNIT

IC301
C2BBGE000792

SYSTEM CONTROL/
LCD DRIVE

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

59

58

57

56

55

54

53

52

51

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

SEG10

SEG11

SEG12

SEG13

SEG14

SEG15

SEG16

XBSLPSEL

PMSEL

CHGSEL3

CHGSEL

TYPESEL

TYPESEL3

SEG24/RSTN

SEG25/PDN

E

RW

X2

RS/LED

RESX

PDOWN

MUTEH

POWER

CHGSEL2

CHG

JUDGE

HOLD

A.SHOCK

REST

Vss

X

OSC

OUT

X

OSC

IN

EXT

-OUT

EXT

-IN

/RESET

TYPESEL2

RIO

WLSRCN

BLKCK

STAT

MDATA/DIO0

MCLK/SK

MLD

PLAY

AC DET

ECS

HPCNT

RAMCNT

CHARGE2

BUZ

CHARGE1

OPEN

KEY1

KEY2

KEY3

VMONITOR1

VMONITOR2

DOCTOR

6KEY

VL2

VL3

COM0

COM1

COM2

COM3

A

Vss

VREF

Vcc

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG0

VL1

SEG17

R823

6.8K

S821

(MEMO)

S823

(EQ)

S822

(MODE)

B C

A

A

R313

100K

R308

100K

C399

9P

C398

9P

R305

3.3M

OFF

ON

R302

100K

Y

X D V

I

J K L M N O P Q R

B

A

C

J

I

H

G

A

R307

10K

R331

1K

Y

W

R

Q

T

S

V

U

M N

B

K

A

X

Z
a

d

g

Y

I

W

H

G

F

B

D E

b

K L

O P

W X

S

X

FOCUS

COIL

TRACKING

COIL

1

2

24

3

4

5

6

7

8

9

10

11

12

13

14

15

CN101

IC101
AN22003A-NF

SERVO AMP

16

17

18

19

20

21

22

23

1

2

24

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

STAND-BY

VC

RF

VB

VA

GCTL

VF

VE

Vcc

NC

MPD

LD

GND

TR+

TR-

FO+

FO-

TRV-

TRV+

SP-

SP+

GND

REST

TRAVERSE

MOTOR

S202

(REST SWITCH)

SPINDLE

MOTOR

M

M

Q101
UNR511300L

SWITCHING

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

25

24

26

27

28

LDON=H

NRFDET

OFT

CONT

DCDET

3T

OUT

CEA

ARF

CAGC

RF

IN

RF

OUT

EQSW

Vcc

LD

PD

GND

PDOWN=H

VREF

TEIN

TE

GCTL

FBAL

TBAL

PDE

PDF

PDB

PDC

PDA

SHARP=H

OFTR

BDO

29

30

31

32

FEIN

FE

Q201
2SB0709A0L

LASER POWER
DRIVE

R201

2.2

C201

4V22

S201

(LASER ON/ OFF)

SL101

R101

2.2K

R102

2.2K

R202

22K

D101

MA2J11100L

A

B

C

D

E

F

G

H

I

J

J K L M N O P Q

R103

10K

R104

10K

C103

0.022

RF

C1

14

1

C101

4V220

R1

10

10

E

D

C108

3300P

B

A

J

F

I

G

H

C104

1

C116

0.022

C1

13

1

C105

1

C111

0.022

C112
560P

R122

47K

R120

3.3K

R121

39K

C121
560P

C120

3300P

L

M

N

P

Q

R

S

T

U

V

VREF

O

1

2

3

4

5

6

7

8

9

10

11

12

LD

MPD

Vcc

VE

VF

GCNT

.

GND

S.by

VC

RF

VB

VA

A

B

C

D

E

F

G

H

I

J

K

A

B

C

D

E

F

G

H

I

J

K

NC

OPTICAL PICK-UP

SL-SX450(EG,EB,EE,GC,GN) CIRCUIT DIAGRAM

C117

0.022

IC302
C3EBCG000096

EE PROM

8

7

6

5

1

2

3

4 DO

DI

SK

CS

Vcc

NC

NC

GND

R361

1K

C321

1

B C D E F

X

U S T C

R W

B C D E

T U V W

R824

8.2K

R825

27K

R826

6.8K

R827

8.2K

R828

27K

R822

12K

R821

12K

V

J

R314

1K

R317

22K

X301

(32.768kHz)

e

f

C

C

J A

R309

0

R325

33K

C301

1

R356

1K

R375

0

R376

0

R31

1

1K

L301

0

R353

1K

S828

(VOL

+

)

S829

(VOL

-

)

S826

()

S827

()

S825

()

S824

(

/

)

K

C304

0

PLAY

2ms. 20mV/DIV.

70mV
P-P

PLAY

0.3V
P-P

2ms. 0.1V/DIV.

PLAY

0.7V
P-P

0.5

s. 0.5V/DIV.

2.7V

2.7V

0V

2.2V

(1.9V)

(1.8V)

2.7V

2.7V

1.3V

2.6V

2.2V

(1.9V)

2.7V

0V

(2.7V)

1.7V

0.4V

(1V)

1V

(1.2V)

0.9V

1.3V

1.3V

0V

2.5V

(0V)

2.4V

(0V)

0V

(2.7V)

2.7V

1.3V

0.9V

(1.1V)

1.3V

0.9V

(1.4V)

0.9V

(1.4V)

1.3V

1.3V

1.3V

1.3V

1.3V

1.3V

1.3V

1.3V

:POSITIVE VOLTAGE LINE

:PLAYBACK SIGNAL LINE

2.7V

1.5V

1.5V

1.5V

1.5V

1.5V

1.5V

1.5V

1.5V

1.5V

1.5V

1.5V

1.5V

1.5V

1.5V

2.7V

2.7V

1.5V

1.5V

1.5V

1.5V

3V

2V

1V

2.7V

0V

(0V)

2.7V

2.7V

2.7V

1.3V

1.2V

2.7V

0V

0V

2.7V

2.7V

2.7V

2.7V

0V

2.7V

0V

2.7V

2.7V

2.7V

2.7V

2.7V

1.7V

2.7V

0V

(2.2V)

(0.6V)

2.7V

0V

2.7V

2.7V

2.7V

0V

0V

(2.2V)

(2.2V)

0V

2.7V

1.5V

1.5V

1.5V

1.5V

2.7V

1.5V

1.5V

0V

0V(2.7V)

2.7V

0V

2.7V

SL-SX450EB / SL-SX450EE / SL-SX450EG / SL-SX450GC / SL-SX450GN

17

Summary of Contents for SL-SX450EB

Page 1: ...nd distribution is a violation of law SL SX450EB SL SX450EE SL SX450EG SL SX450GC SL SX450GN Colours S Silver Type A Blue Type Only SL SX450EE General Power supply DC input DC 4 5V AC adaptor input AC adaptor is not included in SL SX450EB EB AC 220 240V 50 60Hz EE AC 220 230V 50 60Hz EG AC 220 230V 50 60Hz GC AC 110 127 220 240V 50 60Hz GN AC 230 240V 50Hz Power consumption AC adaptor is not inclu...

Page 2: ... CD DA or MP3 Use an audio recording disc for CD DA and finalize it when you finish recording The unit may not be able to play some discsduetothe condition of the recording A process performed after recording that enables CD R CD RW players to play audio CD R and CD RW 6 2 Display of automatic adjustment results self check function 14 7 Display of Self Diagnostic Function 15 8 Type Illustration of...

Page 3: ... resistor on the pickup unit It was already adjusted 3 Do not look at the focus lens using optical instruments 4 Recommend not to look at pickup lens for a long time ACHTUNG Dieses Produkt enthalt eine Laserdiode Im eingeschalteten Zustand Wird unsichtbare Leserstrahlung von der Lasereinheit abgestrahlt Wellenlage 780nm Maximale Strahlungsleistung der Lasereinheit 100 µW VDE Die StrahlungasderLase...

Page 4: ... to protect the laser diode against electrostatic breakdown Be sure to replace to new one following procedures 1 Remove the short pin from the FFC and then connect it to 1 Human body grounding Use the anti static wrist strap to discharge the static electricity from your body as shown in Fig 2 2 Work table grounding Put a conductive material sheet or steel sheet on the area where the optical pickup...

Page 5: ...Fig 3 5 SL SX450EB SL SX450EE SL SX450EG SL SX450GC SL SX450GN ...

Page 6: ...r reassembly after operation checks or replacement reverse the respective procedures Special reassembly procedures are described only when required 4 1 Checking for the P C B ass y 4 1 1 Checking for the P C B ass y A side 4 Operation Checks and Component Replacement Procedures 6 SL SX450EB SL SX450EE SL SX450EG SL SX450GC SL SX450GN ...

Page 7: ...P C B ass y A side as shown below 4 1 2 Checking for the P C B ass y B side Follow the Step1 Step5 of item 4 1 1 Check the P C B ass y B side as shown below 7 SL SX450EB SL SX450EE SL SX450EG SL SX450GC SL SX450GN ...

Page 8: ...4 2 Replacement for the CD lid unit Follow the Step1 Step3 of item 4 1 1 8 SL SX450EB SL SX450EE SL SX450EG SL SX450GC SL SX450GN ...

Page 9: ... SW unit Follow the Step1 Step3 of item 4 1 1 Follow the Step1 Step5 of item 4 2 4 4 Replacement for the spring holder and open spring Follow the Step1 Step3 of item 4 1 1 Follow the Step1 Step5 of item 4 2 9 SL SX450EB SL SX450EE SL SX450EG SL SX450GC SL SX450GN ...

Page 10: ...TE Be sure to confirm the item 3 Handling Precautions for Traverse Deck before removing the traverse deck unit 4 6 Replacement for the optical pick up Follow the Step1 Step3 of item 4 1 1 Follow the Step1 Step3 of item 4 5 10 SL SX450EB SL SX450EE SL SX450EG SL SX450GC SL SX450GN ...

Page 11: ...11 SL SX450EB SL SX450EE SL SX450EG SL SX450GC SL SX450GN ...

Page 12: ...4 7 Replacement for the rest switch Follow the Step1 Step3 of item 4 1 1 Follow the Step1 Step2 of item 4 5 12 SL SX450EB SL SX450EE SL SX450EG SL SX450GC SL SX450GN ...

Page 13: ...mm black dot and the 0 7 mm wedge on the playability test disc SZZP1054C and verify that no sound skip or noise occurs 2 Play the middle tracks of the uneven test disc SZZP1056C and verify that no sound skip or noise occurs 5 Checking the Operation Problems on the Traverse Deck Optical Pickup Make sure to follow the procedures below to check the operation problems of the traverse deck optical pick...

Page 14: ...t beyond the limit Check if 1 the optical pickup returns to the normal state by exchanging the traverse deck 2 the waveform or voltage of the servo IC s are correct 6 Automatic Adjustment Results Display Function Self check Function On this units each automatic adjustment results are displayed on the LCD This function is convenient to check or identify which automatic adjustment circuit is incorre...

Page 15: ...tic head or trouble of the magnetic head up down motor orthemagnetichead P C B is out of position or a foreign matter has mixed in or for some other reason In such a case check the peripheral parts of the magnetic head repair or replace defective parts with normal ones 7 Display of Self Diagnostic Function 8 Type Illustration of IC s Transistors and Diodes UNR511300L UNR511400L UNR521400L UNR521M0...

Page 16: ...the replacement parts Signal line Positive voltage line Playback signal line The voltage value and waveforms are the reference voltage of this measured by DC electronic voltmeter high impedance and oscilloscope on the basis of GND terminal DC IN Jack Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point because it may differ from an actu...

Page 17: ...R511300L SWITCHING 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 25 24 26 27 28 LDON H NRFDET OFT CONT DCDET 3TOUT CEA ARF CAGC RF IN RF OUT EQSW Vcc LD PD GND PDOWN H VREF TEIN TE GCTL FBAL TBAL PDE PDF PDB PDC PDA SHARP H OFTR BDO 29 30 31 32 FEIN FE Q201 2SB0709A0L LASER POWER DRIVE R201 2 2 C201 4V22 S201 LASER ON OFF SL101 R101 2 2K R102 2 2K R202 22K D101 MA2J11100L A B C D E F...

Page 18: ...UDQM A11 SDRCK A9 A8 A7 A6 A5 A4 LDQM NWE NCAS NRAS NCS A3 21 22 23 24 A1 A0 25 DRV DD 1 DVss1 A10 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 NRST BLVS BCLK FLAGO PMCK SMCK BLOCK PLLF PWMSEL DSLF ARF IREF LDON NRFDET OFT BDO AVDD C510 0 1 C504 0 1 C505 0 022 C503 390P R505 560 C509 0 1 R514 330 I W Y H G U L M N W V U T R Q P O N M L I H F E D C B A C D F G H I T P Q R S X501 16 ...

Page 19: ...K D31 MA2J11100L Z1 ERY32SB075VA 2 R6 LR6 UM 3 BATTERIES 3V JK11 DC IN 4 5V R1 R14 47K R15 68K L901 L903 L902 R707 1K R708 1K C705 4V220 C706 4V220 R705 2 2 Q704 B1GFGCAA0001 MUTING R706 2 2 R702 560 R701 560 R703 3 3 R704 3 3 C41 0 1 Q901 UNR511400L MUTING CONT Q902 UNR521000L MUTING CONT Q905 UNR521000L MUTING CONT C904 0 1 C E A B Z Q15 UNR521L00L DC IN DET AC ADAPTOR g 2 7V 2 7V 2 9V 2 7V 0V 0...

Page 20: ...SL SX450EB SL SX450EE SL SX450EG SL SX450GC SL SX450GN 20 ...

Page 21: ...03 R102 R104 R201 R50 E C B Q101 R122 R120 D101 R121 C120 C113 C116 C117 C112 C103 C114 C510 C501 C503 C611 C504 C505 C509 C121 R505 R502 R508 C B E Q201 1 5 10 15 20 25 26 30 35 40 45 50 51 55 60 65 70 75 76 80 85 90 95 100 IC501 3 1 2 IC13 C39 R304 R314 R302 1 4 5 8 IC302 10 1 5 15 20 21 25 30 35 40 41 45 50 55 60 61 65 70 75 80 IC301 R313 C399 C321 C904 C40 C41 R29 R514 R703 R704 R708 E C B Q90...

Page 22: ...SL SX450EB SL SX450EE SL SX450EG SL SX450GC SL SX450GN 22 ...

Page 23: ... B8 B4 B6 B2 MN6627935CM IC501 SERVO PROCESSOR DIGITAL SIGNAL PROCESSOR DIGITAL FILTER D A CONVERTER 52 ARF DSL PLL VCO 72 74 MLD MCLK MCLK MLD 51 IREF 53 DSLF 56 PLLFO 55 PLLF EFM DEMODULATION SYNC INTERPOLATION CIRC ECC CDROM ECC 73 MDATA MDATA 75 STAT STAT MICRO COMPUTER INTERFACE 49 INPUT PORT 47 48 BDO NRFDET OFTR BDO NRFDET OFT A D CONVERTER 43 45 FE TE RFENV FE TE RFENV 42 OUTPUT PORT 36 TI...

Page 24: ...MONITOR2 B6 MLD 17 MLD 18 MCLK SK MCLK 19 MDATA DIO0 MDATA RW 43 GCTL CHARGE CONT Q12 14 B3 9 CHARGE1 4 VMONITOR1 Z1 1 6KEY C2BBGE000792 IC301 SYSTEM CONTROL LCD DRIVE POWER SUPPLY CONT POWER SUPPLY B7 B6 Q41 Q42 12 RAMCNT 13 HPCNT ECS 14 DC IN DET Q15 24 TYPESEL2 36 CHGSEL2 X2 42 X2 2 DOCTOR B3 SL SX450 EG EB EE GC GN BLOCK DIAGRAM CS SK DO DI GND 5 VCC 8 1 2 3 4 B8 LCD801 LCD DISPLAY 74 77 45 46...

Page 25: ... CHARGE2 O PVCC1 voltage up signal output 12 RAMCNT O DRAM control signal output 13 HPCNT O Headphone out control signal output 14 ECS O EEPROM communication selection output 15 ACDET I AC Power supply detect signal input 16 PLAY I PLAY key signal input 17 MLD O Serial command latch output Pin No Terminal Name I O Function 18 MCLK SK O Serial command clock EEPROM clock output 19 MDATA DI O0 O Seri...

Page 26: ...Power supply terminal 51 IREF I Reference current input terminal 52 ARF I RF signal input terminal 53 DSLF O DSL loop filter 54 PWMSEL I PWM output mode select signal 55 PLLF O PLL loop filter 56 PLLFO O PLL loop filter 57 AVSS GND 58 LOOUTL Not used open 59 LOVSS GND 60 LOOUTR Not used open 61 LOVDD I Power supply terminal 62 HPCNT I Headphone output control signal 63 HPOUTR O R ch for headphone ...

Page 27: ...L 1 EB EES EG GC GN 13 RGU2390 1A OPERATION BUTTON L 1 EEA 14 RGU2391 A OPERATION BUTTON R 1 EB EES EG GC GN 14 RGU2391 1A OPERATION BUTTON R 1 EEA 15 RHQ0088 S SCREW 2 Ref No Part No Part Name Description Pcs Remarks 16 RMA1775 1 SPRING HOLDER 1 17 RMR1700 H LID COVER 1 EB EES EG GC GN 17 RMR1700 A LID COVER 1 EEA 18 RSQ0109 ZEBRA RUBBER 1 19 XQN14 BG3FC SCREW 9 20 RYF0761A S CD LID UNIT 1 EB EES...

Page 28: ...ription Pcs Remarks P5 RPN1696 TRAY 2 1 EB P6 RPQ1934 PAD 1 EEA EES EG GN P7 RPQ1932 SHEET 1 1 EB P8 RPQ1947 PAD 1 GC P9 RPQ1935 SHEET 2 1 EB PCB1 REP3681M M P C B ASS Y 1 RTL Q11 B1BDND000001 TRANSISTOR 1 Q12 B1ABMD000004 TRANSISTOR 1 Q13 UNR521L00L TRANSISTOR 1 Q14 UNR511400L TRANSISTOR 1 Q15 UNR521L00L TRANSISTOR 1 Q16 UNR511300L TRANSISTOR 1 Q19 UNR521M00L TRANSISTOR 1 Q31 UNR521500L TRANSISTO...

Page 29: ...EYJ561V 1 10W 560 1 R702 ERJ3GEYJ561V 1 10W 560 1 R703 ERJ3GEYJ3R3V 1 10W 3 3 1 R704 ERJ3GEYJ3R3V 1 10W 3 3 1 R705 ERJ3GEYJ2R2V 1 10W 2 2 1 R706 ERJ3GEYJ2R2V 1 10W 2 2 1 R707 ERJ3GEYJ102V 1 10W 1K 1 R708 ERJ3GEYJ102V 1 10W 1K 1 S201 ESE11MV9T SW LASER ON OFF 1 S202 K0L1BB000025 SW REST DET 1 S310 K0D112B00071 SW HOLD 1 X301 H0J327200126 OSCILLATOR 1 X501 H2D169500027 OSCILLATOR 1 Z1 ERY32SB075VA I...

Page 30: ...15 Cabinet Parts Location 30 SL SX450EB SL SX450EE SL SX450EG SL SX450GC SL SX450GN ...

Page 31: ...16 Traverse Parts Location 31 SL SX450EB SL SX450EE SL SX450EG SL SX450GC SL SX450GN ...

Page 32: ...17 Packaging 17 1 SL SX450EB 32 SL SX450EB SL SX450EE SL SX450EG SL SX450GC SL SX450GN ...

Page 33: ...17 2 SL SX450EE EG GN 33 SL SX450EB SL SX450EE SL SX450EG SL SX450GC SL SX450GN ...

Page 34: ...17 3 SL SX450GC 34 SL SX450EB SL SX450EE SL SX450EG SL SX450GC SL SX450GN ...

Page 35: ... 35 SL SX450EB SL SX450EE SL SX450EG SL SX450GC SL SX450GN K0502 YH HM ...

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