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Sony Walkman D-EJ250, Service Manual

The Sony Walkman D-EJ250 portable CD player offers exceptional sound quality on the go. With its sleek design and user-friendly interface, this device is perfect for music enthusiasts. Enhance your experience by easily accessing and downloading the free operating instructions manual from our website, manualshive.com.

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23

D-EJ250

Ref. No.

Part No.

Description

Remarks

Ref. No.

Part No.

Description

Remarks

R316

1-216-837-11 METAL CHIP

22K

5%

1/10W

R320

1-216-845-11 METAL CHIP

100K

5%

1/10W

R322

1-216-797-11 METAL CHIP

10

5%

1/10W

R401

1-216-797-11 METAL CHIP

10

5%

1/10W

R403

1-218-446-11 METAL CHIP

1

5%

1/10W

R404

1-216-864-11 METAL CHIP

0

5%

1/10W

R406

1-801-862-11 VARISTOR, CHIP (1608)

R407

1-216-789-11 METAL CHIP

2.2

5%

1/10W

R408

1-216-809-11 METAL CHIP

100

5%

1/10W

R409

1-216-789-11 METAL CHIP

2.2

5%

1/10W

R411

1-218-903-11 METAL CHIP

220K

0.5%

1/10W

R412

1-218-887-11 METAL CHIP

47K

0.5%

1/10W

R413

1-216-841-11 METAL CHIP

47K

5%

1/10W

R416

1-216-813-11 METAL CHIP

220

5%

1/10W

R419

1-216-833-11 METAL CHIP

10K

5%

1/10W

R421

1-216-833-11 METAL CHIP

10K

5%

1/10W

R427

1-216-841-11 METAL CHIP

47K

5%

1/10W

R428

1-216-845-11 METAL CHIP

100K

5%

1/10W

R434

1-216-845-11 METAL CHIP

100K

5%

1/10W

R436

1-216-864-11 METAL CHIP

0

5%

1/10W

R438

1-216-833-11 METAL CHIP

10K

5%

1/10W

R439

1-216-841-11 METAL CHIP

47K

5%

1/10W

R440

1-216-841-11 METAL CHIP

47K

5%

1/10W

R444

1-216-845-11 METAL CHIP

100K

5%

1/10W

R446

1-216-864-11 METAL CHIP

0

5%

1/10W

R447

1-216-864-11 METAL CHIP

0

5%

1/10W

R448

1-414-760-21 FERRITE

0uH

R457

1-216-833-11 METAL CHIP

10K

5%

1/10W

R601

1-216-845-11 METAL CHIP

100K

5%

1/10W

R602

1-216-845-11 METAL CHIP

100K

5%

1/10W

R603

1-216-845-11 METAL CHIP

100K

5%

1/10W

R604

1-216-845-11 METAL CHIP

100K

5%

1/10W

R605

1-216-845-11 METAL CHIP

100K

5%

1/10W

R608

1-216-789-11 METAL CHIP

2.2

5%

1/10W

R609

1-216-825-11 METAL CHIP

2.2K

5%

1/10W

R610

1-216-845-11 METAL CHIP

100K

5%

1/10W

R611

1-216-825-11 METAL CHIP

2.2K

5%

1/10W

R612

1-216-864-11 METAL CHIP

0

5%

1/10W

R613

1-216-817-11 METAL CHIP

470

5%

1/10W

R614

1-216-805-11 METAL CHIP

47

5%

1/10W

R615

1-216-864-11 METAL CHIP

0

5%

1/10W

R616

1-216-857-11 METAL CHIP

1M

5%

1/10W

R617

1-216-825-11 METAL CHIP

2.2K

5%

1/10W

R618

1-216-821-11 METAL CHIP

1K

5%

1/10W

R619

1-216-821-11 METAL CHIP

1K

5%

1/10W

R620

1-216-821-11 METAL CHIP

1K

5%

1/10W

R621

1-216-295-91 SHORT CHIP

0

R622

1-216-821-11 METAL CHIP

1K

5%

1/10W

R628

1-216-833-11 METAL CHIP

10K

5%

1/10W

R631

1-216-821-11 METAL CHIP

1K

5%

1/10W

R650

1-216-857-11 METAL CHIP

1M

5%

1/10W

R801

1-216-295-91 SHORT CHIP

0

R802

1-216-845-11 METAL CHIP

100K

5%

1/10W

R803

1-216-837-11 METAL CHIP

22K

5%

1/10W

R804

1-216-845-11 METAL CHIP

100K

5%

1/10W

(CND,E18,HK,TH)

R804

1-216-849-11 METAL CHIP

220K

5%

1/10W

(AEP,UK,EE)

R805

1-216-821-11 METAL CHIP

1K

5%

1/10W

R807

1-414-760-21 FERRITE

0uH

R808

1-216-845-11 METAL CHIP

100K

5%

1/10W

R809

1-216-845-11 METAL CHIP

100K

5%

1/10W

R810

1-414-760-21 FERRITE

0uH

R811

1-216-849-11 METAL CHIP

220K

5%

1/10W

R812

1-216-864-11 METAL CHIP

0

5%

1/10W

R816

1-216-833-11 METAL CHIP

10K

5%

1/10W

R825

1-216-864-11 METAL CHIP

0

5%

1/10W

R827

1-216-833-11 METAL CHIP

10K

5%

1/10W

R830

1-216-864-11 METAL CHIP

0

5%

1/10W

R832

1-216-864-11 METAL CHIP

0

5%

1/10W

R833

1-216-833-11 METAL CHIP

10K

5%

1/10W

R836

1-216-864-11 METAL CHIP

0

5%

1/10W

R838

1-216-833-11 METAL CHIP

10K

5%

1/10W

R841

1-216-845-11 METAL CHIP

100K

5%

1/10W

R845

1-216-845-11 METAL CHIP

100K

5%

1/10W

R849

1-216-833-11 METAL CHIP

10K

5%

1/10W

R854

1-216-864-11 METAL CHIP

0

5%

1/10W

R858

1-216-864-11 METAL CHIP

0

5%

1/10W

R859

1-216-864-11 METAL CHIP

0

5%

1/10W

R863

1-216-837-11 METAL CHIP

22K

5%

1/10W

R864

1-216-837-11 METAL CHIP

22K

5%

1/10W

R871

1-216-849-11 METAL CHIP

220K

5%

1/10W

R872

1-216-833-11 METAL CHIP

10K

5%

1/10W

R880

1-216-295-91 SHORT CHIP

0

R902

1-216-833-11 METAL CHIP

10K

5%

1/10W

R903

1-216-833-11 METAL CHIP

10K

5%

1/10W

R904

1-216-833-11 METAL CHIP

10K

5%

1/10W

R905

1-216-833-11 METAL CHIP

10K

5%

1/10W

R906

1-216-833-11 METAL CHIP

10K

5%

1/10W

R907

1-216-833-11 METAL CHIP

10K

5%

1/10W

R908

1-216-833-11 METAL CHIP

10K

5%

1/10W

R909

1-216-833-11 METAL CHIP

10K

5%

1/10W

R910

1-216-833-11 METAL CHIP

10K

5%

1/10W

R911

1-216-833-11 METAL CHIP

10K

5%

1/10W

R912

1-216-833-11 METAL CHIP

10K

5%

1/10W

R913

1-216-833-11 METAL CHIP

10K

5%

1/10W

R914

1-216-833-11 METAL CHIP

10K

5%

1/10W

R915

1-216-833-11 METAL CHIP

10K

5%

1/10W

R916

1-216-833-11 METAL CHIP

10K

5%

1/10W

R917

1-216-833-11 METAL CHIP

10K

5%

1/10W

R918

1-216-833-11 METAL CHIP

10K

5%

1/10W

R919

1-216-833-11 METAL CHIP

10K

5%

1/10W

R920

1-216-833-11 METAL CHIP

10K

5%

1/10W

< SWITCH >

S802

1-572-499-21 SWITCH, TACTIL (VOL+)

S803

1-572-499-21 SWITCH, TACTIL (VOL-)

S809

1-762-805-41 SWITCH, PUSH (1 KEY) (OPEN)

S810

1-572-922-11 SWITCH, SLIDE (HOLD

.

)

< VIBRATOR >

X601

1-795-101-21 VIBRATOR, CERAMIC (16.9344MHz)

******************************************************

MAIN

Ver 1.2

Summary of Contents for Walkman D-EJ250

Page 1: ...o LR6 size AA batteries 1 5 V DC x 2 AC power adaptor DC IN 4 5 V jack 100 240 V 50 60 Hz Dimensions w h d without projecting parts and controls Approx 135 8 x 22 6 x 135 8 mm 5 3 8 x 29 32 x 5 3 8 in Mass excluding accessories Approx 182 g 6 5 oz Operating temperature 5 C 35 C 41 F 95 F Design and specifications are subject to change without notice Supplied Accessories AC power adaptor 1 Headphon...

Page 2: ... UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead free mark LF indicating the solder contains no lead Caution Some printed circuit boards may not come printed with the lead free mark due to their particular size LEAD FREE MARK Unleaded solder has the following characteristics Unleaded solder melts at a temperature about 40 C higher than ordinary solder Ordinary sol...

Page 3: ...T LOWER ASSY z The equipment can be removed using the following procedure Cabinet lower ASSY MD ASSY Motor ASSY Sled M902 Optical pick up DAX 25E Turn table motor ASSY spindle M901 Main board Set Upper lid ASSY Cabinet upper ASSY 4 tow screws upper lid assy cabinet upper assy cabinet lower assy 5 claw 7 CN802 3 five screws 1 6 2 5 claw 5 claw ...

Page 4: ...n When checking FOK remove the lead wire to disc motor RF signal P to P value 0 4 to 0 8Vp p SECTION 1 SERVICING NOTES Laser Diode Checking Methods During normal operation of the equipment emission of the laser diode is prohibited unless the upper panel is closed while turning ON the S809 push switch type The following two checking methods for the laser diode are operable Method Emission of the la...

Page 5: ...5 D EJ250 3 2 MD ASSY CDM 3325ER MAIN BOARD 1 CN501 2 CN401 3 CN402 6 MAIN board MD assy CDM 3325ER 4 5 HOW TO SET THE HARNESS IN ASSEMBLING CN402 harness CN401 ...

Page 6: ...SLED M902 OPTICAL PICK UP DAX 25E TURN TABLE MOTOR ASSY SPINDLE M901 6 2 4 9 5 motor assy sled M902 1 three screws B1 7x4 chassis 8 three screws B1 7x4 q turn table motor assy spindle M901 7 optical pick up DAX 25E 3 gear cover ...

Page 7: ... vertical sensitivity of the oscilloscope for easy watch ing 5 Stop revolving of the disc motor by pressing the x button SECTION 4 ELECTRICAL ADJUSTMENTS The CD section adjustments are done automatically in this set Precautions for Check 1 Perform check in the order given 2 Use YEDS 18 disc Part No 3 702 101 01 unless otherwise indicated 3 Power supply voltage requirement DC4 5 V in DC IN jack J40...

Page 8: ...YSTEM CONTROL MICOM L404 Q404 Q406 D405 D402 L401 L402 V BAT VCC2_2 0V VCC1_2 2V VCPU_1 5V Q401 VCC2 VCC SEM SEO VCC0 STNG LG VIN BATM1 BATM2 DCIN_S VBAT CHARGE SWITCH VCC1 VCPU 2 0V CHGMNT 24 66 VMMNT 61 DCIN 62 REGB 63 DET CHGB X601 16 934MHz DVDDIO VCHK AVDD2 2 25V DVDDV 1 5V RDACO LDACO LOUT ROUT LIN RIN MUTE BEEP 8 VCC1 10 VCC2 IC302 HEADPHONE AMP IC403 2 2 POWER CONTROL VCPU_2 0V RFI A VCC1_...

Page 9: ...609 TP410 R614 TP605 C107 R103 R105 FB408 Q303 Q302 R205 FB303 FB301 D306 R313 TP411 TP823 D301 D302 C614 C634 L601 C638 IC302 R311 IC603 C631 R610 R612 C610 C635 C630 R615 IC601 C632 C618 C621 X601 C640 C639 C636 R849 BP803 SL801 BP807 L604 R631 R854 R858 R827 R838 R859 C807 C810 D802 R802 CN801 TEST CONNECTOR C623 C627 FB406 TP407 TP409 C414 TP402 TP414 C418 C419 C421 C420 C410 D403 C422 C403 C4...

Page 10: ... Q301 C317 C304 R603 CN601 TP601 RF L605 L406 L403 L404 L411 L405 L301 R322 R204 R104 R448 R421 L305 FB401 FB302 CN402 CN401 C206 C106 C803 R808 R809 R812 R880 24 1 1 15 OPTICAL PICK UP BLOCK DAX 25E LCD801 KEY MATRIX M901 SPINDLE MOTOR M902 SLED MOTOR M M 11 11 1 860 875 SIDE B BOARD MAIN J302 2 2 S809 OPEN 2 3 4 5 6 7 8 9 A 1 B C D E F G PRINTED WIRING BOARDS MAIN SECTION SIDE B Uses unleaded so...

Page 11: ...7 0 0 220k 2 2k 1M 220 4V 1000p 0 01 DTC144TUA T106 B SWITCH 2SB167900LSO B SWITCH DTC144TUA T106 BUFFER 2SB167900LSO LD DRIVER 10 0 0 0 10 10k 0 10k OPEN 0 0 1 22k 1000p 2 2k 22k 22 6 3V PWM BUS 3 VIN A GND VCC2 VCC1 BATMNT BUS 1 VCC4 VCPU COMP GND 2 WPSW AU GND BUS 2 SYNC BUS 4 VCC3 SCK SRW SDTO SDTI SCOR POFF XRST CPOL FIN FIN TIN TIN SIN SIN D0 D1 D2 D3 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A0 A1 A2 A...

Page 12: ...EG11 SEG12 SEG13 SEG14 KEY 1 KEY 2 SCK SRW SDTO SDTI POWERLT SCOR RESET XWAKEUP XBUSY FOK CLK4M J HP L GFS FG PGM SEL PGM SEL PGM SCK PGM SCK PGM SDTI PGM SDTI PGM SDTO PGM SDTO RESET2 RESET2 CLK4M J CLK4M J VOL VOL AMUTE XRST POFF OPSTB OPGSW CHGMNT DCINMNT SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 HOLD OPEN RMKEY VOL VOL BEEP KEY 1 KEY 2 COM COM COM SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG SEG...

Page 13: ...0 2P 1 1 1 VARISTOR 1 220 4V 1 10k 1000p 4 7 4P 2SB167900LSO SWITCH 2SA1602TP 1F SWITCH 2SA1363 T111 1E SWITCH 2SC4154TP 1F SWITCH 2SD1781K T146 QR CHARGE SWITCH 2SC4081T106R DEFFERENTIAL 47k 0 22 220k 47k 220 6 3V 22 10V 0 0 PWM BUS 1 BUS 3 VIN VCC1 VCC2 VCC3 VCPU D GND AU GND A GND COMP BATMNT VCC4 GND 2 BUS 2 SYNC D AU GND BUS 5 POWERLT RESET SDTO SCK XWAKEUP FG XRST CHGMNT DCINMNT CPOL FIN FIN...

Page 14: ...N VOL DIV 1 V AC TIME DIV 0 2 µsec VOL DIV 1 V AC TIME DIV 0 2 µsec 2 3 Vp p 0 237 µsec 2 3 Vp p 0 237 µsec Ver 1 2 For Schematic Diagrams Note All capacitors are in µF unless otherwise noted pF µµF 50 WV or less are not indicated except for electrolytics and tantalums All resistors are in Ω and 1 4 W or less unless otherwise specified f internal component A B Line Power voltage is dc 4 5 V and fe...

Page 15: ...VIN DSW POWERGND USW VCC0_2 25V 17 VCC1_2 25V 18 VCC2_2 0V 20 VCC FIN3 RIN3 FIN2 RIN2 FIN1 RIN1 VM1 0GND FO1 PGND1 VM12 RO1 FO2 PGND2 RO2 VM23 44 FO3 43 PGND3 42 RO3 41 VM3 76 WI PRE DRIVE LOGIC VG VCC VG SLOPE SIGNAL 77 VI 78 UI 79 COM 80 CSL2 XRST 37 WAKEUP 38 CLOXK 39 DATA 40 LATCH RESET_O SYNC PREGND EI SOFT SLOW EO PMG VCPUNF VCC2NF STNG SEP SEM SEO GSW INPUT SELECT CHARGE CONTROLLER LEVEL SH...

Page 16: ...nalog reference voltage for A D converter 21 AD_SEL I Destination setting terminal 22 AD_CHGMNT I Charging monitor input 23 AD_KEY_2 I Set s button detection input 24 AD_BATTMNT I Battery voltage monitor input 25 WP AD_KEY1 I Set s button detection input 26 WP AD_RMKEY I Remocon s button detection input 27 AD_DCINMNT I DC IN voltage monitoring input 28 WP XOPEN I OPEN switch status detection input...

Page 17: ...gnal input from BU9354CKV 72 FG_I I FG signal input from BH6580KV 73 PGMSEL_O SC_SEL_O O PGM select signal output 74 AMUTE_O O Mute ON OFF signal output 75 RESET_TU_O O Not used OPEN 76 XREST_O O System reset output 77 POFF_O O Power off signal output to BU9354CKV 78 XOPSTBY_O O Pick up s power supply ON OFF control signal output 79 OPGSW_O O RF IC s gain control signal output 80 CD TU O Not used ...

Page 18: ...SECTION Ref No Part No Description Remark Ref No Part No Description Remark 1 not supplied cabinet section LCD801 not supplied 2 3 4 6 7 8 9 1 3 254 014 11 SCREW 2 3 261 311 01 COVER UPPER LID 3 3 261 314 01 SHEET COVER ADHESIVE 4 3 261 313 01 CONNECTOR RUBBER 6 X 3384 387 1 LID SUB ASSY UPPER S SILVER 6 X 3384 388 1 LID SUB ASSY UPPER B BLUE 7 3 261 315 01 CUSHION UPPER LID 8 3 261 309 01 BUTTON ...

Page 19: ... UK EE 54 A 4542 816 A MAIN BOARD COMPLETE CND E18 HK 55 3 261 252 01 TERMINAL BATTERY 56 3 261 253 01 TERMINAL BATTERY 57 3 245 331 02 INSULATOR 58 3 261 240 01 LEVER DETECTION 59 3 254 070 01 SCREW 60 3 266 050 01 SPRING L 61 3 266 051 01 SPRING R 62 X 3384 386 1 CABINET UPPER SUB ASSY S SILVER 62 X 3384 420 1 CABINET UPPER SUB ASSY B BLUE 63 3 261 258 21 LID BATTERY CASE SILVER 63 3 261 258 31 ...

Page 20: ...0107 X 3380 950 1 OPTICAL PICK UP DAX 25E RP ASSY 108 3 221 475 01 SHAFT STANDARD 109 3 222 298 01 RACK 110 3 222 299 01 SPRING RACK RETAINER 111 3 348 998 31 SCREW M1 4X2 5 TAPPING PAN M901 A 3180 965 A MOTOR ASSY TURN TABLE SPINDLE M902 A 3180 966 A MOTOR ASSY SLED including GEAR The components identified by mark 0 or dotted line with mark 0 are critical for safety Replace only with part number ...

Page 21: ...162 968 11 CERAMIC CHIP 0 0047uF 10 50V C422 1 162 968 11 CERAMIC CHIP 0 0047uF 10 50V C423 1 162 968 11 CERAMIC CHIP 0 0047uF 10 50V C425 1 104 852 11 TANTAL CHIP 22uF 20 10V C426 1 126 369 11 ELECT 220uF 20 6 3V C427 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C428 1 107 686 11 TANTAL CHIP 4 7uF 20 16V C429 1 164 156 11 CERAMIC CHIP 0 1uF 25V C432 1 124 434 00 ELECT 220uF 20 4V C433 1 115 156 11 CER...

Page 22: ...6 864 11 METAL CHIP 0 5 1 10W FB405 1 216 864 11 METAL CHIP 0 5 1 10W FB406 1 216 864 11 METAL CHIP 0 5 1 10W FB408 1 216 864 11 METAL CHIP 0 5 1 10W IC IC302 6 705 414 01 IC AN17020B E1 IC403 6 703 034 01 IC BH6580KV IC601 6 803 922 01 IC BU9354CKV IC603 6 702 737 01 IC MSM51X17400F 10TFSR1 IC801 6 803 923 01 IC T5AW5 04CD JACK J302 1 816 153 61 JACK i LINE OUT J401 1 778 153 51 JACK DC POLARITY ...

Page 23: ...5 1 10W R650 1 216 857 11 METAL CHIP 1M 5 1 10W R801 1 216 295 91 SHORT CHIP 0 R802 1 216 845 11 METAL CHIP 100K 5 1 10W R803 1 216 837 11 METAL CHIP 22K 5 1 10W R804 1 216 845 11 METAL CHIP 100K 5 1 10W CND E18 HK TH R804 1 216 849 11 METAL CHIP 220K 5 1 10W AEP UK EE R805 1 216 821 11 METAL CHIP 1K 5 1 10W R807 1 414 760 21 FERRITE 0uH R808 1 216 845 11 METAL CHIP 100K 5 1 10W R809 1 216 845 11 ...

Page 24: ... MANUAL INSTRUCTION THAI TH 3 262 450 11 MANUAL INSTRUCTION ENGLISH FRENCH SPANISH CND AEP UK 3 262 450 21 MANUAL INSTRUCTION DUTCH PORTUGUESE SPANISH AEP 3 262 450 31 MANUAL INSTRUCTION GERNAN FINNISH ITALIAN AEP 3 262 450 41 MANUAL INSTRUCTION ENGLISH HUNGARIAN RUSSIAN EE 3 262 450 51 MANUAL INSTRUCTION CZECH POLISH SLOVAKIAN EE 3 262 450 71 MANUAL INSTRUCTION ENGLISH TRADITIONAL CHINESE SIMPLIF...

Page 25: ...25 D EJ250 MEMO ...

Page 26: ...revised page Also clicking the version at the upper right on the revised page allows you to jump to the next revised page Ver Date Description of Revision 1 0 2004 01 New 1 1 2004 02 Additon of UK and Hong Kong model ENG 04005 1 2 2004 04 Additon of Canadian and Thai model ...

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